SCICLONE PHARMACEUTICALS INC
10-Q, 1998-05-14
PHARMACEUTICAL PREPARATIONS
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<PAGE>   1
                                    FORM 10-Q


                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

(Mark One)

[X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES 
    EXCHANGE ACT OF 1934

For the quarterly period ended March 31,
1998

                                       OR

[ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES 
    EXCHANGE ACT OF 1934

For the transition period from ________________________to _____________________

Commission file number:  0-19825

                         SCICLONE PHARMACEUTICALS, INC.
                         ------------------------------
             (Exact name of registrant as specified in its charter)

               CALIFORNIA                                  94-3116852
               ----------                                  -----------
     (State or other jurisdiction of                     (I.R.S. employer
      incorporation or organization)                     identification no.)


901 MARINERS ISLAND BLVD., SUITE 205, SAN MATEO, CALIFORNIA       94404
- -----------------------------------------------------------       ------
      (Address of principal executive offices)                  (Zip code)

                                 (650) 358-3456
              (Registrant's telephone number, including area code)

                                 NOT APPLICABLE
                                 --------------
              (Former name, former address and former fiscal year,
                         if changed since last report)

        Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days.

                             Yes [X]       No [ ]

        As of April 30, 1998, 17,355,584 shares of the registrant's Common
Stock, no par value, were issued and outstanding.


<PAGE>   2
<TABLE>
<CAPTION>
                         SCICLONE PHARMACEUTICALS, INC.



                                      INDEX

PART I.              FINANCIAL INFORMATION                                          PAGE NO.
<S>                  <C>                                                              <C>
Item 1.              Consolidated Financial Statements

                     Consolidated Balance Sheets
                          March 31, 1998 and December 31, 1997                         3

                     Consolidated Statements of Operations
                          Three months ended March 31, 1998 and 1997                   4

                     Consolidated Statements of Cash Flows
                          Three months ended March 31, 1998 and 1997                   5

                     Notes to Consolidated Financial Statements                        6

Item 2.              Management's Discussion and Analysis of Financial
                          Condition and Results of Operations                          8

PART II.             OTHER INFORMATION

Item 6.              Exhibits and Reports on Form 8-K                                  18


Signatures                                                                             19

</TABLE>


                                       2
<PAGE>   3

PART I. FINANCIAL INFORMATION

ITEM  1.        CONSOLIDATED FINANCIAL STATEMENTS
<TABLE>
<CAPTION>

                            SCICLONE PHARMACEUTICALS, INC.

                              CONSOLIDATED BALANCE SHEETS

                                        ASSETS

                                                                   March 31,      December 31,
                                                                     1998             1997
                                                                 -------------     -------------
                                                                  (unaudited)
<S>                                                              <C>               <C>          
Current assets:
    Cash and cash equivalents                                    $   3,024,142     $   3,619,100
    Short-term investments                                           4,132,494         3,866,007
    Accounts receivable                                              1,242,838         1,024,802
    Inventory                                                        1,924,822         2,046,218
    Prepaid expenses and other current assets                          219,473           332,193
                                                                 -------------     -------------
Total current assets                                                10,543,769        10,888,320

Property and equipment, net                                            478,883           525,077
Long-term investments                                                2,722,569         5,415,358
Notes receivable from officers                                       1,570,933         2,326,851
Other assets                                                            47,800            39,899
                                                                 -------------     -------------
Total assets                                                     $  15,363,954     $  19,195,505
                                                                 =============     =============

                         LIABILITIES AND SHAREHOLDERS' EQUITY

Current liabilities:
    Accounts payable                                             $     484,882     $     562,730
    Accrued compensation and benefits                                  557,253           758,955
    Accrued clinical trials expense                                  1,411,596         1,210,164
    Accrued professional fees                                          354,000           413,000
    Other accrued expenses                                             472,534           526,999
                                                                 -------------     -------------
Total current liabilities                                            3,280,265         3,471,848

Shareholders' equity:
    Preferred stock, no par value; 10,000,000 shares
        authorized ; no shares issued and outstanding                     ----              ----
    Common stock, no par value; 75,000,000 shares
        authorized; 17,348,108 and 17,343,358 shares
        issued and outstanding                                     107,046,293       107,033,516
    Note receivable from former officer                             (5,944,000)       (5,944,000)
    Net unrealized gain(loss) on available-for-sale
        securities                                                      14,350           (17,588)
    Accumulated deficit                                            (89,032,954)      (85,348,271)
                                                                 -------------     -------------
Total shareholders' equity                                          12,083,689        15,723,657
                                                                 -------------     -------------
Total liabilities and shareholders' equity                       $  15,363,954     $  19,195,505
                                                                 =============     =============
</TABLE>

                    See notes to consolidated financial statements



                                       3
<PAGE>   4
<TABLE>
<CAPTION>
                         SCICLONE PHARMACEUTICALS, INC.

                      CONSOLIDATED STATEMENTS OF OPERATIONS
                                   (unaudited)


                                                Three months ended
                                                      March 31,
                                          ---------------------------------
                                              1998                1997
                                          ------------       --------------
<S>                                       <C>                <C>         
Product revenue                           $    554,399       $    670,538
Contract revenue                               100,000                 --
                                          ------------       ------------

Total revenue                                  654,399            670,538

Cost of sales
                                               224,945            261,565
                                          ------------       ------------

Gross margin                                   429,454            408,973

Operating expenses:
     Research and development                2,169,574          2,065,719
     Marketing                               1,248,014          1,029,138
     General and administrative                893,219            867,041
                                          ------------       ------------
Total operating expenses                     4,310,807          3,961,898
                                          ------------       ------------

Loss from operations                        (3,881,353)        (3,552,925)

Interest and investment income, net            196,670            512,755
                                          ------------       ------------

Net loss                                  $ (3,684,683)      $ (3,040,170)
                                          ============       ============

Net loss per share (basic & diluted)      $      (0.24)      $      (0.17)
                                          ============       ============

Weighted average shares used in
     computing net loss per share           15,463,972         17,536,639
                                          ============       ============
</TABLE>


                 See notes to consolidated financial statements



                                       4
<PAGE>   5
<TABLE>

                         SCICLONE PHARMACEUTICALS, INC.

                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                                   (unaudited)

                                                               Three months ended 
                                                                   March 31,
                                                          -----------------------------
                                                             1998              1997
                                                          -----------       -----------
<S>                                                       <C>               <C>         
OPERATING ACTIVITIES:
   Net loss                                               $(3,684,683)      $(3,040,170)
   Adjustments to reconcile net loss to net
   cash used in operating activities:
      Depreciation and amortization                            59,014            38,822
      Changes in operating assets and liabilities:
         Prepaid expenses and other assets                    106,737           357,624
         Accounts receivable                                 (218,036)         (934,975)
         Inventory                                            121,396            77,786
         Accounts payable and other accrued expenses         (132,313)         (587,104)
         Accrued clinical trial expense                       201,432           334,997
         Accrued professional fees                            (59,000)         (156,000)
         Accrued compensation and benefits                   (201,702)         (355,934)
                                                          -----------       -----------
Net cash used in operating activities                      (3,807,155)       (4,264,954)
                                                          -----------       -----------

INVESTING ACTIVITIES:
   Purchase of property and equipment                         (12,820)          (40,388)
   Sale of marketable securities, net                       2,458,240         2,921,907
                                                          -----------       -----------
Net cash provided by investing activities                   2,445,420         2,881,519
                                                          -----------       -----------

FINANCING ACTIVITIES:
   Proceeds from issuance of common stock, net                 12,777         1,025,429
   Payment on notes receivable from officer                   754,000              ----
   Repurchase of common stock                                    ----          (826,484)
                                                          -----------       -----------
Net cash provided by financing activities                     766,777           198,945
                                                          -----------       -----------

Net decrease in cash and cash equivalents                    (594,958)       (1,184,490)
Cash and cash equivalents, beginning of period              3,619,100         4,642,590
                                                          -----------       -----------
Cash and cash equivalents, end of period                  $ 3,024,142       $ 3,458,100
                                                          ===========       ===========

</TABLE>

                 See notes to consolidated financial statements


                                       5
<PAGE>   6

                         SCICLONE PHARMACEUTICALS, INC.

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
1.      The accompanying unaudited consolidated financial statements have been
        prepared in conformity with generally accepted accounting principles
        consistent with those applied in, and should be read in conjunction
        with, the audited financial statements for the year ended December 31,
        1997. The interim financial information reflects all normal recurring
        adjustments which are, in the opinion of management, necessary for a
        fair presentation of the results for the interim periods presented. The
        interim results are not necessarily indicative of results for subsequent
        interim periods or for the full year.

2.      As of January 1, 1998, the Company adopted Statement of Financial
        Accounting Standards No. 128, "Earnings Per Share" ("SFAS 128"). SFAS
        128 requires the presentation of basic earnings (loss) per share and
        diluted earnings (loss) per share, if more dilutive, for all periods
        presented. In accordance with SFAS 128, basic net loss per share has
        been computed using the weighted average number of shares of common
        stock outstanding during the period. Diluted net loss per share has not
        been presented as the result would be antidilutive given the Company's
        history of net losses.

3.      As of January 1, 1998, the Company adopted Statement of Financial
        Accounting Standards No. 130, "Reporting Comprehensive Income" ("SFAS
        130"). SFAS 130 establishes new rules for the reporting and display of
        comprehensive income and its components; however, the adoption of this
        Statement had no impact on the Company's net loss or shareholders'
        equity. SFAS 130 requires unrealized gains or losses on the Company's
        available-for-sale securities and foreign currency translation
        adjustments, which prior to adoption were reported separately in
        shareholders' equity to be included in other comprehensive income. Prior
        year financial statements have been reclassified to conform to the
        requirements of SFAS 130. During the first quarter of 1998 and 1997,
        total comprehensive loss amounted to $(3,670,333) and $(3,404,881),
        respectively.

4.      As of January 1, 1998, the Company adopted Statement of Financial
        Accounting Standards No. 131, "Disclosures about Segments of an
        Enterprise and Related Information" ("SFAS 131"). SFAS 131 requires that
        the Company report financial and descriptive information about its
        reportable operating segments. The Company is evaluating the impact, if
        any, on SFAS 131 disclosures, but does believe the disclosures are not
        material.

5.      The following is a summary of available-for sale securities at March 31,
        1998:
<TABLE>
<CAPTION>

                                                                   Available-for-Sale Securities
                                                   -------------------------------------------------------
                                                                   Gross           Gross         Estimated
                                                                Unrealized      Unrealized         Fair
                                                     Cost         Gains          Losses           Value
                                                  ----------   ---------        ---------       ----------
<S>                                                <C>            <C>             <C>            <C>      
                   U.S. Government &
                      Agency obligations          $2,211,190  $   22,094        $ (18,854)      $2,214,430
                   Corporate obligations           4,557,643      17,673          (31,693)       4,543,623
                   Corporate securities              100,000       6,410           (9,400)          97,010
                                                  ----------   ---------        ---------       ----------
                                                  $6,868,833   $  46,177        $ (59,947)      $6,855,063
                                                  ==========   =========        ==========      ==========
</TABLE>




                                       6
<PAGE>   7

        The amortized cost and estimated fair value of
        available-for-sale securities at March 31, 1998 by
        contractual maturity are shown below.
<TABLE>
<CAPTION>
                                                                           Estimated
                                                                             Fair
                                                          Cost               Value
                                                      ----------           ----------
<S>                                                   <C>                  <C>       
        Due in one year or less                       $4,058,018           $4,035,484
        Due after one year through three years         2,710,815            2,722,569
                                                      ----------           ----------  
                                                       6,768,833            6,758,053
        Corporate securities                             100,000               97,010
                                                      ----------           ----------
                                                      $6,868,833           $6,855,063
                                                      ==========           ==========
</TABLE>

        The following is a summary of inventories at March 31, 1998
<TABLE>

<S>                                <C>       
        Raw materials              $1,521,797
        Finished goods                403,024
                                   ----------
                                   $1,924,822
                                   ==========
</TABLE>

6.      For the three months ended March 31, 1998, one customer in China
        accounted for 81% of the Company's product sales. Such customer
        represents 86% of the accounts receivable balance at March 31, 1998.
        Such collections to date have been slower than anticipated and the
        Company is currently monitoring the situation. At March 31, 1998, the
        Company had allowances for bad debts of $197,000. If collection of
        outstanding accounts receivable do not improve, it may be necessary to
        further increase related allowances for bad debts.

7.      In March 1998, the Company received $754,000 from one of its executive
        officers as a partial payment of a $1,000,000 loan. This payment reduced
        the loan to $236,500 including accrued interest.

8.      In April 1998, the Company sold 661,157 shares of Series C convertible
        preferred stock at $6.05 per share and received $4,000,000 from the
        offering (before deducting expenses). The preferred stock is convertible
        into common stock on a scheduled basis over the next five years at
        prices based on the market price of the common stock during a pricing
        period preceding conversion. In conjunction with the offering, the
        Company granted to the investor warrants to purchase 100,000 shares of
        common stock. These warrants are exercisable during the five year period
        ending March 2003 at an exercise price of $5.67 per share.

9.      In April 1998, the Company entered into an agreement with Sclavo S.p.A.,
        an international pharmaceutical company, to acquire its marketing
        approval for ZADAXIN thymosin alpha 1 in Italy as an influenza vaccine
        adjuvant. This agreement also included a marketing application for use
        of ZADAXIN to treat non-small cell lung cancer, as well as all of
        Sclavo's development and marketing rights to ZADAXIN in Italy, Spain and
        Portugal. Under the agreement, which is subject to certain standard
        closing conditions, the purchase price includes $296,000 in cash, the
        issue of 375,000 shares of the Company's common stock, and two-year
        warrants to purchase 375,000 shares of common stock at an exercise price
        of $4.125 per share.

                                       7
<PAGE>   8

            ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                    AND RESULTS OF OPERATIONS

                      The following material contains forward-looking statements
            within the meaning of Section 27A of the Securities Act and Section
            21E of the Securities Exchange Act. Such forward-looking statements
            include those which management has attempted to identify elsewhere
            with an asterisk (*). Such forward-looking statements are subject to
            risks and uncertainties, including those identified in Factors That
            May Affect Future Operating Results in the Company's Annual Report
            on Securities and Exchange Commission Form 10-K for the year ended
            December 31, 1997. These risks and uncertainties include (i) the
            Company's current reliance on a single product, ZADAXIN, for its
            revenues, (ii) the absence of regulatory approval for ZADAXIN in
            major pharmaceutical markets, (iii) the expensive, time consuming
            and uncertain regulatory approval process, (iv) risks associated
            with the manufacture and supply of ZADAXIN, (v) competition from
            competing therapies, (vi) market acceptance of the Company's
            products, (vii) uncertainties regarding the outcome of the Company's
            efforts to commercialize additional products and (viii) the need for
            additional funds and a strategic partner for the commencement of
            additional trials, as well as other risks and uncertainties
            described herein and in the Company's other reports filed with the
            Securities and Exchange Commission.

                      The Company is an international biopharmaceutical company
            that acquires, develops and commercializes specialist-oriented drugs
            for treating chronic and life-threatening diseases, including
            hepatitis B, hepatitis C, cancer, immune system disorders and cystic
            fibrosis. Currently, the Company has two drugs in clinical
            development, ZADAXIN (thymosin alpha 1) for hepatitis B, hepatitis
            C, cancer and immune system disorders, and CPX for cystic fibrosis.
            The Company also has other drug candidates in preclinical
            development. To date, the Company's principal focus has been the
            development and commercialization of ZADAXIN and the development of
            CPX.

                      From commencement of operations through March 31, 1998,
            the Company incurred a cumulative net loss of approximately $89.0
            million. The Company expects its operating expenses to increase over
            the next several years as it expands its research and development,
            clinical testing and marketing capabilities. The Company's ability
            to achieve profitable operations is primarily dependent on
            increasing ZADAXIN sales in approved markets, securing regulatory
            approvals for ZADAXIN in additional countries and successfully
            launching ZADAXIN, if approved, in such countries. In addition,
            other factors may also impact the Company's ability to achieve a
            profitable level of operations such as spending associated with
            successful development of CPX, acquiring rights to additional drugs,
            and entering into and extending agreements for product development
            and commercialization, where appropriate. There can be no assurance
            that the Company will be able to attain these objectives or that the
            Company will ever achieve a profitable level of operations.

                      The Company's operating results may fluctuate from period
            to period as a result of, among other things, market acceptance of
            ZADAXIN, the timing and costs associated with preclinical and
            clinical development of the Company's products, the regulatory
            approval process, and the acquisition of additional product rights.
            The Company participates in a highly dynamic industry, which often
            results in significant volatility of the Company's common stock
            price. Setbacks in the launch, sale or distribution of ZADAXIN,
            preclinical and clinical development of the Company's products, the
            regulatory approval process or relationships with collaborative
            partners, and any shortfalls in revenue or earnings from levels
            expected by securities analysts, among other developments, have in
            the past had and could in the future have an immediate and
            significant adverse effect on the trading price of the Company's
            common stock in any given period.


                                       8
<PAGE>   9

            RESULTS OF OPERATIONS

                      Total revenue was approximately $654,000 and $671,000 for
            the three-month periods ended March 31, 1998 and 1997. For the three
            months ended March 31, 1998, $554,000 of total revenue was derived
            from ZADAXIN product sales and $100,000 from a research grant from
            the U.S. Food and Drug Administration. For the three months ended
            March 31, 1997, all of the $671,000 total revenue was related to
            ZADAXIN product sales. Currently, ZADAXIN has been approved for
            marketing in Argentina, Italy, Kuwait, the People's Republic of
            China, Peru, the Philippines and Singapore. For the three months
            ended March 31, 1998, one customer in China accounted for 81% of the
            Company's product sales. The Company's accounts receivable
            collections in China are typically 180 days or longer. Such customer
            represents 86% of the accounts receivable balance at March 31, 1998.
            Such collections to date have been slower than anticipated and the
            Company is currently monitoring the situation. At March 31, 1998,
            the Company had allowances for bad debts of $197,000. If collection
            of outstanding accounts receivable do not improve, it may be
            necessary to further increase related allowances for bad debts. The
            Company has filed for approval to market ZADAXIN in several
            countries and anticipates additional filings in other countries.* As
            a result, the Company expects product revenue to increase in 1998
            and beyond, upon the commencement of the commercial launch of
            ZADAXIN in additional markets once regulatory approvals are
            secured.* The level of such product revenue increase is dependent
            upon increased ZADAXIN market penetration in the Company's existing
            approved markets, additional ZADAXIN marketing approvals and the
            successful launch of ZADAXIN in new markets. Although the Company
            remains optimistic regarding the prospects of ZADAXIN, there can be
            no assurance that the Company will ever achieve significant levels
            of product revenue or that the Company will receive additional
            ZADAXIN market approvals.

                      Cost of sales was approximately $225,000 and $262,000 for
            the three-month periods ended March 31, 1998 and 1997, respectively.
            The decrease is attributable to decreased product sales. The Company
            expects cost of sales to vary from quarter to quarter, dependent
            upon the level of product revenue, the absorption of fixed
            product-related costs, and any charges associated with excess or
            expiring finished product.

                      Research and development expenses were approximately
            $2,170,000 and $2,066,000 for the three-month periods ended March
            31, 1998 and 1997, respectively. The increase is primarily
            attributable to license fees associated with the proposed
            acquisition of Alpha 1 Biomedicals Inc.'s worldwide rights to
            thymosin alpha 1 and increased consulting fees offset by decreased
            clinical expenses and payroll costs. The Company recently completed
            dosing in its CPX Phase 1 clinical study in the United States and
            plans to start a Phase 2 clinical trial later this year.* In
            addition, the Company is pursuing a corporate partnering arrangement
            with a major pharmaceutical company for a pivotal phase 3
            development of the combination of ZADAXIN plus interferon for
            hepatitis C in the U.S. and Europe.* The initiation and continuation
            of these programs by the Company had and will continue to have a
            significant effect on the Company's research and development
            expenses in the future and will require the Company to seek
            additional capital resources. In general, the Company expects
            product research and development expenses to increase over the next
            several years and to vary quarter to quarter as the Company pursues
            its strategy of initiating additional clinical trials and testing,
            entering into one or more corporate partnering arrangements,
            acquiring product rights, and expanding regulatory activities.


                                       9
<PAGE>   10

                      Marketing expenses were approximately $1,248,000 and
            $1,029,000 for the three-month periods ended March 31, 1998 and
            1997, respectively. The increase relates to increased payroll costs
            and travel and entertainment expenses associated with the expansion
            in its approved markets. The Company expects marketing expenses to
            increase significantly in the next several quarters and years as it
            anticipates expanding its commercialization and marketing efforts
            and pursuing other strategic relationships.*

                      General and administrative expenses were approximately
            $893,000 and $867,000 for the three-month periods ended March 31,
            1998 and 1997, respectively. The increase is attributable to
            increased general office expenses and fees for professional
            services, offset by decreased investor relations fees and payroll
            costs. In the near term, the Company expects general and
            administrative expenses to vary quarter to quarter as the Company
            augments its general and administrative activities and resources to
            support increased expenditures on clinical trials and testing, and
            regulatory, pre-commercialization and marketing activities.

                      Net interest and investment income was approximately
            $197,000 and $513,000 for the three-month periods ended March 31,
            1998 and 1997, respectively. The decrease primarily resulted from
            decreased interest and investment income due to lower average
            invested cash balances.

            LIQUIDITY AND CAPITAL RESOURCES

                      At March 31, 1998, the Company had approximately
            $9,879,000 in cash, cash equivalents and liquid short and long-term
            investments.

                      Net cash used by the Company in operating activities
            amounted to approximately $3,807,000 for the three-month period
            ended March 31, 1998. Net cash used in operating activities in the
            1998 period is greater than the Company's net loss for such period
            due to increases in accounts receivable and payments to third
            parties for goods and services and to employees for compensation and
            benefits. These uses of cash were offset by non-cash charges
            associated with depreciation and amortization, decreases in
            inventory and prepayments of certain future expenses and increases
            in amounts owed to third parties for clinical trials. Net cash used
            by the Company in operating activities amounted to approximately
            $4,265,000 for the three-month period ended March 31, 1997. Net cash
            used in operating activities in the 1997 period is greater than the
            Company's net loss for such period primarily due to increases in
            accounts receivable associated with sales from the Company's launch
            of ZADAXIN in its approved markets and increases in payments to
            third parties for goods and services and to employees for
            compensation and benefits. These uses of cash were offset by
            non-cash charges associated with depreciation and amortization and
            increases in amounts owed to third parties for clinical trials.

                      Net cash provided by investing activities amounted to
            approximately $2,445,000 for the three-month period ended March 31,
            1998 related to the net sale of approximately $2,458,000 of
            marketable securities offset by the purchase of $13,000 in equipment
            and furniture. Net cash provided by investing activities amounted to
            approximately $2,882,000 for the three-month period ended March 31,
            1997 related to the net sale of approximately $2,922,000 of
            marketable securities offset by the purchase of $40,000 in equipment
            and furniture.


                                       10
<PAGE>   11

                      Net cash provided by financing activities for the
            three-month period ending March 31, 1998 amounted to approximately
            $767,000, consisting of a partial repayment of $754,000 on a note
            receivable from an officer and $13,000 in proceeds received from the
            issuance of common stock under the Company's employee stock purchase
            plan. Net cash provided by financing activities for the three-month
            period ending March 31, 1997 primarily consisted of approximately
            $1,025,000 in proceeds received from the issuance of common stock
            from the exercise of outstanding warrants and under the Company's
            stock option plan, offset by repurchases of the Company's common
            stock under the Company's approved stock repurchase plan of
            approximately $826,000.

                      Management believes its existing capital resources and
            interest on funds available are adequate to maintain its current and
            planned operations at least through 1998.* In April 1998, the
            Company concluded an offering of convertible preferred stock with
            proceeds of $4,000,000 (before deducting expenses) and is actively
            pursuing additional financings including a private placement of
            common stock and an equity line. The Company believes it will
            conclude one or more of such additional financings in the next three
            to six months although no assurance can be given that such financing
            will occur in the time frame expected by the Company, on terms
            favorable to the Company, or at all.* The Company is considering
            corporate partnering and other opportunities to increase its capital
            resources and if one or more of such other opportunities occurred,
            the Company would consider accelerating drug development activities,
            including clinical trials. However, the Company's capital
            requirements may change depending upon numerous factors, including
            the level of ZADAXIN product sales, the availability of
            complementary products, technologies and businesses, the initiation
            of preclinical and clinical trials and testing, the timing of
            regulatory approvals, developments in relationships with existing or
            future collaborative partners and the status of competitive
            products. The Company continues to pursue corporate partnering and
            public and private financing alternatives. If the Company cannot
            eventually generate sufficient funds from operations, it will need
            to raise additional financing in the near future. There can be no
            assurance that such financing will be available on acceptable terms
            and on a timely basis, if at all.

            IMPACT OF THE YEAR 2000

                      As the year 2000 approaches, an issue impacting all
            companies has emerged regarding how existing application software
            programs and operating systems can accommodate this date value. In
            brief, many existing application software products in the
            marketplace were designed to accommodate only a two digit date
            position which represents the year (e.g., "95" is stored on the
            system and represents the year 1995). As a result, the year 1999
            (i.e., "99") could be the maximum date value systems will be able to
            accurately process. Management is in the process of working with its
            software vendors to assure that the Company is prepared for the year
            2000. Management does not anticipate that the Company will incur
            significant operating expenses or be required to invest heavily in
            computer system improvements to be year 2000 compliant.


                                       11
<PAGE>   12

            FACTORS THAT MAY AFFECT FUTURE OPERATING RESULTS

                      Dependence on ZADAXIN and CPX. The Company's principal
            drug development efforts are currently focused primarily on ZADAXIN
            and CPX. Clinical trials of ZADAXIN sponsored by the Company and/or
            other parties are currently in progress or planned and favorable
            results from such trials will be necessary to gain regulatory
            approval in major pharmaceutical markets. Sales of ZADAXIN commenced
            in 1997 but are not material at this time. While ZADAXIN has been
            approved for commercial sale for treatment of hepatitis B in the
            People's Republic of China, Kuwait, Peru, the Philippines and
            Singapore, no assurance can be given that ZADAXIN approvals will be
            obtained in additional countries or for the treatment of additional
            indications, such as hepatitis C or cancer, in a timely fashion or
            at all. The Company's launch of ZADAXIN in the People's Republic of
            China, the Philippines and Singapore is the first commercial
            introduction of ZADAXIN by the Company, and no assurance can be
            given that commercialization of ZADAXIN will prove successful. The
            Company has not yet launched ZADAXIN in Argentina, Italy, Kuwait or
            Peru and no assurance can be given that future launch of ZADAXIN
            will prove successful in these countries or in any additional
            countries. Future sales of ZADAXIN will depend on market acceptance
            and successful distribution. In particular, although the People's
            Republic of China has the highest hepatitis B prevalence rate in the
            world, the low average income and poorly developed distribution
            infrastructure present ongoing challenges to successful
            commercialization of ZADAXIN in that market. Because the Company
            currently relies on ZADAXIN as its sole source of revenue, the
            failure to demonstrate the drug's efficacy in future clinical
            trials, obtain additional marketing approvals or commercialize the
            drug successfully would have a material adverse effect on the
            Company.

                      The Company may experience delays and encounter
            difficulties in clinical trials of CPX. In addition, there can be no
            assurance that any clinical trial will provide statistically
            significant evidence of the efficacy of CPX in treating cystic
            fibrosis ("CF"). A failure to demonstrate the safety and efficacy of
            CPX in a CF clinical trial, obtain regulatory approval of CPX for CF
            or successfully commercialize CPX would have a material adverse
            effect on the Company.

                      No History of Significant Revenues; Continuing Operating
            Losses. The Company has only recently generated revenues from the
            commercialization of its lead product, ZADAXIN, and there is
            substantial uncertainty regarding the timing and amount of any
            future revenues and whether such future revenues will be material.
            The Company cannot predict when or if marketing approvals for CPX
            will be obtained or additional marketing approvals for ZADAXIN will
            be obtained. Even if such approvals are obtained, there can be no
            assurance that ZADAXIN and CPX will be commercialized successfully.
            The Company has experienced significant operating losses since its
            inception and has a substantial accumulated deficit. The Company
            expects its operating expenses to increase over the next several
            years as it expands its development, clinical testing and marketing
            capabilities. The Company's ability to achieve a profitable level of
            operations is dependent in large part on successful expansion of the
            market for ZADAXIN in Asia, Latin America and the Middle East,
            obtaining additional regulatory approvals for ZADAXIN and/or future
            products, entering into a corporate partnering arrangement for
            pivotal phase 3 development of the combination of ZADAXIN plus
            interferon for hepatitis C in the U.S. and Europe, entering into
            other agreements for product development and commercialization,
            where appropriate, and continuing to expand from development into
            successful marketing. There can be no assurance that the Company
            will ever achieve a profitable level of operations.



                                       12
<PAGE>   13

                      Future Capital Needs; Uncertainty of Additional Financing.
            Since inception, the Company has financed its operations primarily
            through sales of equity securities. The Company will need to obtain
            additional financing through sales of equity securities to support
            its long-term product development and commercialization programs.
            The Company believes its existing capital resources and interest on
            funds available are adequate to maintain its current and planned
            operations at least through 1998.* The Company is considering
            corporate partnering and other opportunities to increase its capital
            resources. However, the Company's future capital requirements will
            depend on many factors, including the level of ZADAXIN product
            sales, the availability of complementary products, technologies and
            businesses, the initiation of preclinical and clinical trials and
            testing, the timing and cost of regulatory approvals, patent costs,
            competing technological and market developments, the nature of
            existing and future collaborative relationships, and the Company's
            ability to establish development, sales, manufacturing and marketing
            arrangements. The Company continues to pursue corporate partnering
            and public and private financing alternatives. If additional funds
            are raised by the Company through the issuance of equity securities
            or securities convertible into or exercisable for equity securities,
            the percentage ownership of the then current shareholders of the
            Company will be reduced. The Company may issue a series of Preferred
            Stock with rights, preferences and privileges senior to those of the
            Company's Common Stock. There can be no assurance that such
            financing will be available on acceptable terms or a timely basis,
            if at all. The unavailability or timing of financing could prevent
            or delay the Company's long-term product development and
            commercialization programs and may require curtailment of operations
            of the Company.

                      Dependence on Third Parties. The Company's strategy
            contemplates that it will enter into various arrangements with other
            entities. To date, the Company has acquired rights to ZADAXIN, CPX
            and certain other drugs but is only actively pursuing clinical
            development of ZADAXIN and CPX. Failure to license or otherwise
            acquire rights to additional drugs would result in a shortage of
            products for development. In addition, the Company has licensed
            exclusive rights to develop and market ZADAXIN in Japan to
            Schering-Plough K.K. ("SPKK"), the Japanese subsidiary of
            Schering-Plough Corporation. SPKK has a substantial commitment to
            alpha interferon, which is an approved therapy for hepatitis B and
            hepatitis C in Japan. There can be no assurance that the
            relationship will prove successful or that the Company will be able
            to negotiate additional arrangements in the future. The amount and
            timing of resources that collaborators devote to their activities
            with the Company will not be within the control of the Company and
            may be affected by financial difficulties or other factors affecting
            these third parties. There can be no assurance that such parties
            will perform their obligations as expected. Moreover, the Company's
            ability to obtain regulatory approval in one country may be delayed
            or adversely affected by the timing of regulatory activities and
            approvals in one or more other countries, particularly if the
            Company does not participate in the regulatory approval process in
            such other countries.

                      Foreign Sales and Operations. The Company's financial
            condition in the near term will be highly dependent on ZADAXIN sales
            in foreign jurisdictions, where sales and operations are subject to
            inherent risks, including difficulties and delays in obtaining
            pricing approvals and reimbursement, unexpected changes in
            regulatory requirements, tariffs and other barriers, political
            instability, difficulties in staffing and managing foreign
            operations, longer payment cycles, greater difficulty in accounts
            receivable collection, currency fluctuations and potential adverse
            tax consequences. Certain foreign countries regulate pricing of
            pharmaceuticals and such regulation may result in prices
            significantly below those

                                       13
<PAGE>   14

            that would prevail in a free market. The majority of the Company's
            current sales are to customers in the People's Republic of China
            where the Company's accounts receivable collections are typically
            180 days or greater. Such collections to date have been slower than
            anticipated and the Company is currently monitoring the situation.
            If collection of outstanding accounts receivable does not improve,
            it may become necessary to further increase the related allowances
            for bad debts or slow the rate of sales to this market.

                      Patents and Proprietary Rights. The U.S. and most European
            composition of matter patents for thymosin alpha 1 have expired. The
            Company will in the future have only limited composition of matter
            patents for thymosin alpha 1 or other products and this could
            adversely affect the Company's proprietary rights. However, the
            Company owns or has exclusive licenses for use and/or process
            patents or patent applications in the U.S., Europe, Japan and other
            jurisdictions for thymosin alpha 1, and for CPX in the U.S. and will
            seek to protect such products from competition through such patent
            protection and through other means. The Company's success is
            significantly dependent on its ability to obtain patent protection
            for its products and technologies and to preserve its trade secrets
            and operate without infringing on the proprietary rights of third
            parties. No assurance can be given that the Company's pending patent
            applications will result in the issuance of patents or that any
            patents will provide competitive advantages or will not be
            invalidated or circumvented by its competitors. Moreover, no
            assurance can be given that patents are not issued to, or patent
            applications have not been filed by, other companies which would
            have an adverse effect on the Company's ability to use, manufacture
            or market its products or maintain its competitive position with
            respect to its products. Numerous patents and patent applications
            relating to thymosin alpha 1 are held under exclusive license and
            the breach by the Company of the terms of such license could result
            in the loss of the Company's rights to such patents and patent
            applications. Other companies obtaining patents claiming products or
            processes useful to the Company may bring infringement actions
            against the Company and such litigation is typically costly and
            time-consuming. As a result, the Company may be required to obtain
            licenses from others or not be able to use, manufacture or market
            its products. Such licenses may not be available on commercially
            reasonable terms, if at all.

                      The patent positions of biotechnology firms generally are
            highly uncertain and involve complex legal and factual questions. No
            consistent policy has emerged regarding the validity and scope of
            claims in biotechnology patents, and courts have issued varying
            interpretations in the recent past, and legal standards concerning
            validity, scope and interpretations of claims in biotechnology
            patents may continue to evolve. Even issued patents may later be
            modified or revoked by the U.S. Patent and Trademark Office, the
            European Patent Office or the courts in proceedings instituted by
            third parties. Moreover, the issuance of a patent in one country
            does not assure the issuance of a patent with similar claims in
            another country and claim interpretation and infringement laws vary
            among countries, so the extent of any patent protection is uncertain
            and may vary in different countries.

                      Pharmaceuticals are not patentable in certain countries in
            SciClone's ZADAXIN territory, or have only recently become
            patentable, and enforcement of intellectual property rights in many
            countries in such territory has been limited or non-existent. Future
            enforcement of patents and proprietary rights in many countries in
            SciClone's ZADAXIN territory can be expected to be problematic or
            unpredictable. There can be no assurance that any patents issued or
            licensed to the Company will provide it with competitive advantages



                                       14
<PAGE>   15

            or will not be challenged by others. No assurance can be given that
            holders of patents licensed to the Company will file, prosecute,
            extend or maintain their patents in countries where the Company has
            rights. Furthermore, there can be no assurance that others will not
            independently develop similar products or will not design around
            patents issued or licensed to the Company.

                      Government Regulation and Product Approvals. The research,
            preclinical and clinical development, manufacturing, marketing and
            sales of pharmaceuticals, including ZADAXIN, CPX and the Company's
            other drug candidates, are subject to extensive regulation by
            governmental authorities. Products developed by the Company cannot
            be marketed commercially in any jurisdiction in which they have not
            been approved. The process of obtaining regulatory approvals is
            lengthy and requires the expenditure of substantial resources. In
            some countries where the Company contemplates marketing ZADAXIN, the
            regulatory approval process for drugs not previously approved in
            countries that have established clinical trial review procedures is
            uncertain and this uncertainty may result in delays in granting
            regulatory approvals. In addition, in certain countries such as
            Japan, the process for obtaining regulatory approval is time
            consuming and costly because all clinical trials and most
            preclinical studies must be conducted there. The Company is
            currently sponsoring clinical trials and pursuing regulatory
            approvals of ZADAXIN in a number of countries and of CPX in the
            U.S., but there can be no assurance that the Company will be able to
            complete such trials, that such trials, if completed, will fulfill
            regulatory approval criteria or that the Company will ultimately
            obtain approvals in such countries. Adverse results in the Company's
            development programs also could result in the placement of
            restrictions on the use of ZADAXIN and CPX or revocation of the
            approval. The marketing approval for ZADAXIN in Singapore requires a
            patient surveillance program to continue study of the drug's safety
            and efficacy. Adverse results in such program could result in the
            placement of restrictions on the use of ZADAXIN or revocation of the
            approval in Singapore. Failure to comply with the applicable U.S. or
            foreign regulatory requirements can, among other things, result in
            Warning Letters, fines, suspensions of regulatory approvals, product
            recalls or seizures, operating restrictions, injunctions and
            criminal prosecutions. Further, additional government regulation may
            be established or imposed which could prevent or delay regulatory
            approval of ZADAXIN, CPX or any future products of the Company.

                      Manufacturing. The Company has entered into contract
            manufacturing and supply agreements to source ZADAXIN and CPX. The
            Company has experienced delays of supply of thymosin alpha 1 bulk
            drug in the past and could do so again in the future. To be
            successful, the Company's products must be manufactured in
            commercial quantities in compliance with regulatory requirements and
            at an acceptable cost. While the Company believes it has and will be
            able in the future to establish manufacturing relationships with
            experienced suppliers capable of meeting the Company's needs, there
            can be no assurance that the Company will establish long term
            manufacturing relationships with suppliers or that these suppliers
            will prove satisfactory. The Company currently has vialing and
            packaging supply agreements in effect and has a sufficient supply of
            finished thymosin alpha 1 for the near term and is currently
            negotiating a new vialing and packaging supply agreement. No
            assurances can be given that such new agreement will be reached.
            Production interruptions, if they occur, could significantly delay
            clinical development of potential products, reduce third party or
            clinical researcher interest and support of proposed clinical
            trials. Such interruptions could also delay commercialization of the
            Company's products and impair their competitive position, which
            would have a material adverse effect on the business and financial
            condition of the Company.


                                       15
<PAGE>   16

                      Marketing and Sales. The Company has established
            distribution arrangements with local pharmaceutical distribution
            companies covering countries in Asia, Latin America and the Middle
            East. However, no assurance can be given that any such distribution
            arrangements will remain in place or prove successful.

                      Technological Change and Competition. Rapid technological
            development may result in the Company's products becoming obsolete
            before they are marketed or before the Company recovers a
            significant portion of the related development and commercialization
            expenses. Competition in the pharmaceutical field is intense and the
            Company expects that competition will increase. The Company's
            competitors include major pharmaceutical companies, biotechnology
            firms and universities and other research institutions, both in the
            U.S. and abroad, that are actively engaged in research and
            development of products in the therapeutic areas being pursued by
            the Company. Many of these companies and institutions have
            substantially greater financial, technical, manufacturing, marketing
            and human resource capabilities than the Company and extensive
            experience in undertaking clinical testing and obtaining regulatory
            approvals necessary to market drugs. Principal competitive factors
            in the pharmaceutical field include efficacy, safety, price and
            therapeutic regimen. Where comparable products are marketed by other
            companies price is also a competitive factor.

                      Uncertainty of Third Party Reimbursement; Resources of
            Patient Populations. The Company's ability to successfully
            commercialize its products may depend in part on the extent to which
            reimbursement for the cost of such products will be available from
            government health administration authorities, private health
            insurers and other organizations. Significant uncertainty exists as
            to the reimbursement status of new therapeutic products and there
            can be no assurance that third party reimbursement will be available
            for therapeutic products the Company might develop. In many of the
            foreign countries in which the Company intends to operate,
            reimbursement of ZADAXIN under government or private health
            insurance programs will not be available. In the U.S., health care
            reform is an area of increasing national attention and a priority of
            many governmental officials. Certain reform proposals, if adopted,
            could impose limitations on the prices the Company will be able to
            charge in the U.S. for its products or the amount of reimbursement
            for the Company's products from governmental agencies or third party
            payors. In many countries where the Company has marketing rights for
            ZADAXIN, government resources and per capita income levels may be so
            low that the Company's products will be prohibitively expensive for
            a large percentage of the population. In such countries, there can
            be no assurance that the Company will be successful in marketing its
            products on economically favorable terms, if at all.

                      Dependence on Qualified Personnel and Key Individuals.
            Because of the specialized scientific nature of the Company's
            business, the Company is highly dependent upon its ability to
            continue to attract and retain qualified management, scientific and
            technical personnel. There is intense competition for qualified
            personnel in the areas of the Company's activities, and there can be
            no assurance that the Company will be able to continue to attract
            and retain the qualified personnel necessary for the development of
            its business. In addition, many key responsibilities within the
            Company have been assigned to a relatively small number of
            individuals. Loss of the services of any of these individuals unless
            they were promptly replaced could be significantly detrimental to
            the Company's development. The Company does not maintain key person
            life insurance on the lives of any of its key personnel.



                                       16
<PAGE>   17

                      Product Liability; Absence of Insurance. The Company's
            business will expose it to potential product liability risks which
            are inherent in the testing, manufacturing, marketing and sale of
            pharmaceutical products, and there can be no assurance that product
            liability claims will not be asserted against the Company. Product
            liability insurance for the pharmaceutical industry generally is
            expensive to the extent that it is available at all. The Company has
            product liability insurance coverage for clinical trials and
            commercial sales. However, there can be no assurance that a product
            liability claim would not adversely affect the business or financial
            condition of the Company.

                      Blank Check Preferred Stock. The Company recently issued
            shares of Series C Preferred Stock (the "Series C Shares") in a
            private placement with proceeds of $4,000,000 (before deducting
            offering expenses). The Company's Board of Directors has the
            authority to issue additional series of preferred stock and to
            determine the price, rights, preferences, privileges and
            restrictions, including voting rights, without any further vote or
            action by the Company's shareholders. The rights of the holders of
            the Common Stock will be subject to, and may be adversely affected
            by, the rights of the holders of any Preferred Stock that may be
            issued in the future. The issuance of Preferred Stock, while
            providing desirable flexibility in connection with possible
            acquisitions and other corporate purposes, could have the effect of
            making it more difficult for a third party to acquire a majority of
            the outstanding voting stock of the Company.

                      Series C Preferred Stock. Under certain conditions, each
            Series C Share may convert into substantially more than one share of
            the Company's Common Stock. If such events were to occur, the
            conversion of the Series C Shares would have a dilutive effect on
            the common shareholders. In connection with the issuance of the
            Series C Shares, the Company will recognize a deemed dividend in the
            amount of $3,143,000 in the second quarter ended June 30, 1998. This
            amount will increase the net loss and net loss per share applicable
            to common shareholders and was calculated as required by the SEC.



                                       17
<PAGE>   18

            PART II.  OTHER INFORMATION

            ITEM 6.   EXHIBITS AND REPORTS ON FORM 8-K

            (a)        Exhibits
<TABLE>
<CAPTION>
                       Exhibit
                       Number                           Description
                       ------                           -----------
                       <S>              <C>  
                       3(i).1            Restated Articles of Incorporation
                                         (incorporated by reference from the
                                         Company's Registration Statement on
                                         Form S-1 (No. 33-45446), declared
                                         effective by the Commission on March
                                         17, 1992).
                       3(i).2            Certificate of Amendment of Restated
                                         Articles of Incorporation (incorporated
                                         by reference from the Company's
                                         Registration Statement on Form S-8 (No.
                                         33-66832) filed with the Commission on
                                         August 3, 1993).
                       3(ii).1           Bylaws (incorporated by reference from
                                         the Company's Registration Statement on
                                         Form S-1 (No. 33-45446), declared
                                         effective by the Commission on March
                                         17, 1992).
                       3(ii).2           Certificate of Amendment of Bylaws
                                         (incorporated by reference from the
                                         Company's Registration Statement on
                                         Form S-8 (No. 33-66832) filed with the
                                         Commission on August 3, 1993).

                       4.1               Rights Agreement, dated as of July 25,
                                         1997, between Sciclone and ChaseMellon
                                         Shareholder Services, LLC.
                                         (incorporated by reference to the
                                         Company's Current Report on Form 8-K
                                         filed on October 14, 1997).

                       10.23             Employment Agreement dated March 24, 1997 
                                         between Registrant and Alfred R. Rudolph

                       27                Financial Data Schedule
</TABLE>

            (b)        Reports on Form 8-K

                       None


                                       18
<PAGE>   19

                                   SIGNATURES


                      Pursuant to the requirements of the Securities and
            Exchange Act of 1934, the Registrant has duly caused this report to
            be signed on its behalf by the undersigned thereunto duly
            authorized.


                                           SCICLONE PHARMACEUTICALS, INC.
                                                    (Registrant)



            Date:   May 14, 1998                  DONALD R. SELLERS
                                            ------------------------------
                                                  Donald R. Sellers
                                               Chief Executive Officer
                                            (Principal Executive Officer)


            Date:   May 14, 1998                      DIANE LEE
                                           --------------------------------
                                                      Diane Lee
                                           Director, Corporate Finance and
                                                   Administration
                                     (Principal Financial & Accounting Officer)

<PAGE>   1
                                                                   EXHIBIT 10.23


[SciClone LOGO]              C O N F I D E N T I A L


TO:         AL RUDOLPH

FROM:       D. R. SELLERS

DATE:       March 24, 1997

SUBJ:       EMPLOYMENT OFFER

Deal Al,

On behalf of SciClone Pharmaceuticals, Inc., we are pleased to be able to make
you the following offer to join our team:

Target start date: 15 April 1997

Term of Employment: Your employment with SciClone will start on April 15, 1997,
will be for no specific period and may be terminated by you or SciClone at any
time, with or without cause.

Title(s) - Vice President Development and Manufacturing Operations / Chief
Technical Officer

Responsibility - You will be made a Corporate Officer and vested with the
related responsibilities and authority. Primary responsibilities include: all
pre-clinical, scientific, quality, product formulation, and worldwide
manufacturing issues. Additionally, you may be asked to assume responsibility
for regulatory affairs. You will be responsible for the clinical development of
thymosin alpha 1 in areas other than hepatitis by acting as project leader of
such products as may develop. You will share responsibility with other
corporate executives for the management and utilization of the relevant
Consultants. You will become a member of the existing thymosin alpha 1 HCV
project, the existing SP-111 (CPX) project, and the SPKK project. You will
work with and assist the VP Business Development in new product assessment.

Without prejudice, this position has been designed to allow you to be
considered for the position of Chief Operating Officer at some time in the
future.

Reporting Relationship - The position reports to the President and CEO,
SciClone Pharmaceuticals, Inc., with direct dotted line access to the
appropriate staff functions such as Marketing, Medical, Finance, Legal, etc.,
as well as to the relevant Consultants. Reporting to

<PAGE>   2
this position will be the VP Scientific Affairs, Director of Manufacturing
Operations, Manager of Quality Assurance, and possibly the VP Regulatory
Affairs.

Compensation - your compensation will consist of four components:

     Salary - $US15,000.00 monthly.

     Management Bonus - paid annually after the close of the fiscal year and
     targeted at 40% of annual Salary depending upon performance against an
     agreed set of management objectives. Bonus can range from 0% to 150% of
     targeted amount.

     Mortgage Assistance - understanding the differential in housing costs
     between your current location and the San Francisco area. We are offering
     you $2,500.00 monthly ($30,000 annually) in mortgage assistance. To take
     advantage of this assistance you must enter into a contract to purchase a
     home in the area prior to the end of September 1997. This assistance will
     be in effect for 36 months (unless your employment ends for any reason in
     which case the mortgage assistance will end at the same time). SciClone
     will pay the closing costs for the sale of your current home and your
     purchased home in the San Mateo area.

     Equity - it is a policy of SciClone that, as much as possible, all of our
     team should own a piece of the company and share in its success. We are
     pleased to offer you 70,000 shares in the form of options. Your option(s)
     will be governed by the terms and conditions of SciClone's existing stock
     option plan and the standard form of option agreement (which you will be
     required to sign in connection with the issuance of your option(s).

     Benefits - You will have the right, on the same basis as the other
     executive employees of SciClone, to participate in and receive benefits
     under any SciClone medical, life, disability or other group insurance
     plans, as well as under SciClone's 401(k) and deferred compensation plans
     and business expense reimbursement policy.

     Other - to facilitate your early start, we will provide you with a company
     selected and company rented studio apartment in the vicinity of the
     office. This apartment will be made available until the end of September
     1997, or when you move into housing, which ever comes first. Additionally,
     we will provide two househunting trips for your wife (and son, if
     appropriate).

     SciClone will relocate you, your family (air travel according to company
     policy) and reasonable household goods to the San Mateo area. This
     assistance is time linked to the purchase of a home in the San Mateo area
     as described in "Mortgage Assistance" above.

Termination: Your employment may be terminate by SciClone under the
circumstances below.

     (a)  Termination for Cause: If your employment is terminated by SciClone
     for cause as defined below, you shall be entitled to no compensation or
     benefits from SciClone




<PAGE>   3
     other than those earned through the date of your termination. In
     particular, you will not be entitled to any bonus that you would have
     earned had you been employed for the entire year in which your termination
     occurs.

     For purposes of this Agreement, a termination "for cause" occurs if you are
     terminated for any of the following reasons: (i) theft, dishonesty,
     misconduct or falsification of any employment or SciClone records; (ii)
     improper disclosure of SciClone's confidential or proprietary information;
     (iii) any action by you which has a material detrimental effect on
     SciClone's reputation or business; (iv) your failure or inability to
     perform any assigned duties reasonably expected of you after written notice
     from SciClone to you of, and a reasonable opportunity to cure, such failure
     or inability; (v) your conviction (including and plea of guilt or no
     contest) for any criminal act that impairs your ability to perform your
     duties for SciClone, or; (vi) your death or disability.

     (b)  Termination Without Cause: If your employment is terminated by
     SciClone without cause (and not as a result of your death or disability),
     you shall receive severance payments at your final base salary rate, less
     applicable withholding, equal to one month salary for every two months
     worked up to a total of six months salary. Severance payments will be
     made in accordance with SciClone's normal payroll procedures. You will also
     be entitled to receive any compensation and benefits that you earn through
     the date of your termination without cause. You will not be entitled to any
     pro rated portion of the management bonus for the entire year in which your
     termination occurs. Your right to receive the severance pay described in
     this subparagraph is conditioned upon your execution and delivery to
     SciClone of a general release of claims, in form satisfactory to SciClone,
     that does not impair your right to receive any compensation or benefits you
     have previously earned.

     (c)  Dispute Resolution: In the event of any dispute or claim relating to
     arising out of your employment relationship with SciClone, or the
     termination of your employment with SciClone for any reason (including, but
     not limited to, any claims of breach of contract, wrongful termination or
     age, disability or other discrimination), you and SciClone agree that all
     such disputes shall be fully, finally and exclusively resolved by the
     binding arbitration conducted by the American Arbitration Association
     ("AAA") in San Mateo County, California. You and SciClone hereby knowingly
     and willingly waive your respective rights to have any such disputes or
     claims tried to a judge and jury. Provided, however, that this arbitration
     provision shall not apply to any disputes or claims relating to or arising
     out of the actual or alleged misuse or appropriation of SciClone's
     property, including, but not limited to, its trade secrets or proprietary
     information. In any such arbitration (or other legal proceeding), the
     prevailing party shall be entitled to recover from the losing party its
     attorney's fees and costs incurred in connection with such proceeding.

Your position is a significant management position of trust and responsibility
with accountability for yourself and all employees and third parties working
towards SciClone's goals. I want to call your particular attention to the
Employee Information and Inventions Agreements, and the Employee Handbook,
particularly Part I (Business Ethics and Practice) and Part II (Employment and
Time at Work). You will be given a checklist of these documents and items that
you will      
<PAGE>   4
need to sign or read for orientation.

You will be required to travel on an "as and when needed" basis to support,
manage and achieve your personal objectives and the support corporate goals. As
a virtual company, the nature of our company is "hands on" and "do it yourself".

The SciClone senior management team is very excited about your joining the
company and having your help in driving it forward. I am sure that you will add
significant value to SciClone and that your experiences with SciClone will add
considerably to your personal and professional growth. A base of mutual respect
will enable us to work together productively and profitably into the future.

This letter and the agreements referred to above constitute the entire
agreement between you and SciClone regarding the term and conditions of your
employment, and the supersede all prior negotiations, representations or
agreements between you and SciClone regarding your employment, whether written
or oral. The terms and conditions of your employment may only be modified by a
supplemental written agreement signed by you and the President/CEO of SciClone.

Sincerely yours,

/s/ DONALD R. SELLERS

Donald R. Sellers
President and CEO - SciClone Pharmaceuticals, Inc.

ACCEPTED:


- --------------------------------

Al Rudolph, M.D.

/s/ AL RUDOLPH
- --------------------------------

DATE:  3/24/97
     ---------------------------




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