INCYTE PHARMACEUTICALS INC
S-8, 1998-11-20
COMMERCIAL PHYSICAL & BIOLOGICAL RESEARCH
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<PAGE>
 As filed with the Securities and Exchange Commission on November 20, 1998.

                                                    Registration No. 333-_____
- ------------------------------------------------------------------------------


                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    Form S-8


                             REGISTRATION STATEMENT
                                      Under
                           THE SECURITIES ACT OF 1933

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


                 Delaware                               94-3136539
  -----------------------------------         -------------------------------
       (State or other jurisdiction of                (I.R.S. Employer
      incorporation or organization)                Identification No.)

           3174 Porter Drive
          Palo Alto, California                           94304
  -----------------------------------         -------------------------------
           (Address of Principal                        (Zip Code)
            Executive Offices)

                 OPTIONS ISSUED BY INCYTE PHARMACEUTICALS, INC.
                   TO FORMER OPTIONHOLDERS OF HEXAGEN LIMITED
                 ----------------------------------------------

                            (Full title of the plan)


                                                        Copy to:
            ROY A. WHITFIELD                          STANTON D. WONG
         Chief Executive Officer                      SALLY BRAMMELL
       Incyte Pharmaceuticals, Inc.             Pillsbury Madison & Sutro LLP
            3174 Porter Drive                          P.O. Box 7880
       Palo Alto, California 94304                San Francisco, CA 94120
            (650) 855-0555                             (415) 983-1000
    -----------------------------------        -------------------------------
       (Name, address and telephone
       number, including area code,
          of agent for service)

<TABLE>
                         CALCULATION OF REGISTRATION FEE
- ------------------------------------------------------------------------------
<CAPTION>

     Title of                      Amount                 Proposed Maximum              Proposed                    Amount of
   Securities To                    To Be                  Offering Price           Maximum Aggregate             Registration
   Be Registered                 Registered                 per Share (1)           Offering Price(1)                  Fee
- ---------------------------------------------------------------------------------------------------------------------------------
      <S>                           <C>                          <C>                      <C>                          <C> 

   Common Stock                    125,734                      $2.03                  $255,240.02                   $70.96
- ---------------------------------------------------------------------------------------------------------------------------------

Series A Participating
Preferred Stock
Purchase Rights (2)                125,734                       N/A                       N/A                         N/A
- ---------------------------------------------------------------------------------------------------------------------------------

Total Registration Fee             125,734                       N/A                       N/A                       $70.96

<FN>

(1) Estimated solely for the purposes of calculating the amount of the
registration fee pursuant to Rule 457(h) under the Securities Act of 1933, as
amended, the offering price is based upon the exercise prices for options
previously granted by Hexagen Limited.

(2) Associated with the Common Stock are Series A Participating Preferred Stock
Purchase Rights that will not be exercisable or evidenced separately from the
Common Stock prior to the occurrence of certain events.

</FN>
</TABLE>

       The Registration Statement shall become effective upon filing in
       accordance with Rule 462 under the Securities Act of 1933.
- -------------------------------------------------------------------------------

<PAGE>


Incyte Pharmaceuticals, Inc. (the "Registrant") acquired all of the issued and
outstanding capital stock of Hexagen Limited ("Hexagen") pursuant to a Share
Purchase Agreement, dated as of September 21, 1998, among the Registrant,
Hexagen and the shareholders of Hexagen. The shares to be registered hereunder
are issuable pursuant to (i) options assumed by the Registrant that were
originally granted under The Hexagen Limited Unapproved Company Share Option
Plan 1996 and (ii) share exchange option agreements entered into between the
Registrant and certain consultants to Hexagen who held options to purchase
Hexagen ordinary shares.

                                     PART I
                                     ------

              INFORMATION REQUIRED IN THE SECTION 10(A) PROSPECTUS
              ----------------------------------------------------

Item 1.      Plan Information.*
- ------       ----------------

Item 2.      Registrant Information and Employee Plan Annual Information.*
- ------       -----------------------------------------------------------

*        Information required by Part I to be contained in the Section 10(a)
         prospectus is omitted from the Registration Statement in accordance
         with Rule 428 under the Securities Act of 1933 and the Note to Part I
         of Form S-8.

                                     PART II
                                     -------

               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
               --------------------------------------------------

Item 3.     Incorporation of Certain Documents by Reference.
- ------      ------------------------------------------------

     The following documents filed by Registrant (File No. 0-27488) with the
Securities and Exchange Commission are incorporated by reference in this
Registration Statement:

     (1) The Registrant's Annual Report on Form 10-K for the fiscal year ended
December 31, 1997;

     (2) The Registrant's Quarterly Reports on Form 10-Q for the quarters ended
March 31, June 30, and September 30, 1998;

     (3) Registrant's Current Report on Form 8-K, as amended on Form 8-K/A,
dated January 22, 1998;

     (4) The Registrant's Current Reports on Form 8-K dated as of June 12,
August 17, September 2, September 21, and September 25, 1998;

     (5) The description of the Registrant's Common Stock contained in the
Registration Statement on Form 8-A filed with the Securities and Exchange
Commission on January 5, 1996; and

     (6) The description of the Registrant's Series A Participating Preferred
Stock Purchase Rights contained in the Registration Statement on Form 8-A filed
with the Securities and Exchange Commission on September 30, 1998.

     In addition, all documents subsequently filed by the Registrant pursuant to
Section 13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of 1934, prior
to the filing of a post-effective amendment which indicates that all securities
offered have been sold or which deregisters all securities then remaining
unsold, shall be deemed to be incorporated by reference in this registration
statement and to be a part hereof from the date of filing of such documents.


                                       -2-

<PAGE>


Item 4.     Description of Securities.
- ------      --------------------------

     Not applicable.

Item 5.     Interests of Named Experts and Counsel.
- ------      ---------------------------------------

     Not applicable.

Item 6.     Indemnification of Directors and Officers.
- ------      ------------------------------------------

     Section 145 of the Delaware General Corporation Law provides for the
indemnification of officers, directors, and other corporate agents in terms
sufficiently broad to indemnify such persons under certain circumstances for
liabilities (including reimbursement for expenses incurred) arising under the
Securities Act of 1933, as amended (the "Act"). Article VII of the Registrant's
Restated Certificate of Incorporation and Article V of the Registrant's Bylaws
provide for indemnification of the Registrant's directors, officers, employees
and other agents to the extent and under the circumstances permitted by the
Delaware General Corporation Law. The Registrant has also entered into
agreements with its directors and officers that will require the Registrant,
among other things, to indemnify them against certain liabilities that may arise
by reason of their status or service as directors or officers to the fullest
extent not prohibited by law.

Item 7.     Exemptions from Registration Claimed.
- ------      -------------------------------------

     Not applicable.

Item 8.     Exhibits.
- ------      ---------

 5.1        Opinion of Pillsbury Madison & Sutro LLP.

10.1        The Hexagen Limited Unapproved Company Share Option Plan 1996, 
            as amended.

10.2        Form of Share Exchange Option Agreement.

23.1        Consent of Ernst & Young LLP, Independent Auditors.

23.2        Consent of Pillsbury Madison & Sutro LLP (included in Exhibit 5.1).

Item 9.     Undertakings.
- ------      -------------

     (a) The undersigned Registrant hereby undertakes:

             (1) To file, during any period in which offers or sales are
         being made, a post-effective amendment to this Registration Statement:

                      (i)  To include any prospectus required by section 
                  10(a)(3) of the Securities Act of 1933;

                      (ii) To reflect in the prospectus any facts or events
                  arising after the effective date of the registration statement
                  (or the most recent post-effective amendment thereof) which,
                  individually or in the aggregate, represent a fundamental
                  change in the information set forth in the registration
                  statement. Notwithstanding the foregoing, any increase or
                  decrease in volume of securities offered (if the total dollar
                  value of securities offered would not exceed that which was
                  registered) and any deviation from the low or high end of the
                  estimated maximum offering range may be reflected in the form
                  of prospectus filed with the Commission pursuant to Rule

                                       -3-


<PAGE>


                  424(b) if, in the aggregate, the changes in volume and price
                  represent no more than a 20% change in the maximum aggregate
                  offering price set forth in the "Calculation of Registration
                  Fee" table in the effective registration statement;

                       (iii) To include any material information with
                  respect to the plan of distribution not previously disclosed
                  in the registration statement or any material change to such
                  information in the registration statement;

         Provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not
         apply if the registration statement is on Form S-3 or Form S-8, and the
         information required to be included in a post-effective amendment by
         those paragraphs is contained in periodic reports filed by the
         Registrant pursuant to section 13 or section 15(d) of the Securities
         Exchange Act of 1934 that are incorporated by reference in the
         registration statement.

              (2) That, for the purpose of determining any liability under
         the Securities Act of 1933, each such post-effective amendment shall be
         deemed to be a new registration statement relating to the securities
         offered therein, and the offering of such securities at that time shall
         be deemed to be the initial bona fide offering thereof.

              (3) To remove from registration by means of a post-effective
         amendment any of the securities being registered which remain unsold at
         the termination of the offering.

     (b) The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
Registrant's annual report pursuant to section 13(a) or section 15(d) of the
Securities Exchange Act of 1934 that is incorporated by reference in the
registration statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

     (c) Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors, officers and controlling persons of
the Registrant pursuant to the foregoing provisions, or otherwise, the
Registrant has been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the Act
and is, therefore, unenforceable. In the event that a claim for indemnification
against such liabilities (other than the payment by the Registrant of expenses
incurred or paid by a director, officer or controlling person of the Registrant
in the successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Act and will be governed by the final adjudication of
such issue.


                                       -4-


<PAGE>


                                   SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-8 and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Palo Alto, State of California, on November 19,
1998.

                                       INCYTE PHARMACEUTICALS, INC.



                                       By     /s/ ROY A. WHITFIELD
                                          ------------------------------
                                                  Roy A. Whitfield
                                             Chief Executive Officer



                                POWER OF ATTORNEY


     KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears
below constitutes and appoints Roy A. Whitfield, Randal W. Scott and Denise M.
Gilbert, and each of them, his true and lawful attorneys-in-fact and agents,
each with full power of substitution and resubstitution, for him and in his
name, place and stead, in any and all capacities, to sign any and all
amendments, including post-effective amendments, to this Registration Statement,
and to file the same, with exhibits thereto and other documents in connection
therewith, with the Securities and Exchange Commission granting unto said
attorneys-in-fact and agents, and each of them, full power and authority to do
and perform each and every act and thing requisite and necessary to be done, as
fully to all intents and purposes as he might or could do in person, hereby
ratifying and confirming all that said attorneys-in-fact and agents, or his
substitute or substitutes, may do or cause to be done by virtue hereof.

         Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons in the
capacities and on the dates indicated.

<TABLE>
<CAPTION>
<S>                                               <C>                                       <C>

                     Name                                           Title                                Date




             /s/ ROY A. WHITFIELD                  Chief Executive Officer (Principal         November 19, 1998
- -----------------------------------------------
                 Roy A. Whitfield                  Executive Officer) and Director




       /s/ DENISE M. GILBERT, Ph.D.                Executive Vice President, Chief            November 19, 1998
- -----------------------------------------------
           Denise M. Gilbert, Ph.D.                Financial Officer (Principal
                                                   Financial Officer)


</TABLE>


                                       -5-


<PAGE>


<TABLE>
<CAPTION>
<S>                                                <C>                                        <C>
                     Name                                           Title                                Date



              /s/ WILLIAM DELANEY                  Corporate Controller (Principal            November 19, 1998
- -----------------------------------------------
                  William Delaney                  Accounting Officer)





            /s/ JEFFREY J. COLLINSON               Chairman of the Board                      November 19, 1998
- -----------------------------------------------
                Jeffrey J. Collinson




          /s/ RANDAL W. SCOTT, Ph.D.               Director                                   November 19, 1998
- -----------------------------------------------
              Randal W. Scott, Ph.D.




           /s/ BARRY M. BLOOM, Ph.D.               Director                                   November 19, 1998
- -----------------------------------------------
               Barry M. Bloom, Ph.D.




         /s/ FREDERICK B. CRAVES, Ph.D.            Director                                   November 19, 1998
- -----------------------------------------------
             Frederick B. Craves, Ph.D.




               /s/ JON S. SAXE                     Director                                   November 19, 1998
- -----------------------------------------------
                   Jon S. Saxe

</TABLE>

                                       -6-


<PAGE>



                                INDEX TO EXHIBITS


Exhibit
- -------
Number                        Exhibit
- -------                       -------

 5.1       Opinion of Pillsbury Madison & Sutro LLP.

10.1       The Hexagen Limited Unapproved Company Share Option Plan 1996, 
           as amended.

10.2       Form of Share Exchange Option Agreement.

23.1       Consent of Ernst & Young LLP, Independent Auditors.

23.2       Consent of Pillsbury Madison & Sutro LLP (included in Exhibit 5.1).


                                       -7-



<PAGE>


                                                                   EXHIBIT 5.1

                          PILLSBURY MADISON & SUTRO LLP
                              235 Montgomery Street
                             San Francisco, CA 94104
                               Tel: (415) 983-1000


                               November 19, 1998




Incyte Pharmaceuticals, Inc.
3714 Porter Drive
Palo Alto, CA  94304


     Re: Registration Statement on Form S-8


Ladies and Gentlemen:

     We refer to the Registration Statement on Form S-8 (the "Registration
Statement") to be filed by Incyte Pharmaceuticals, Inc., a Delaware corporation
(the "Company"), with the Securities and Exchange Commission under the
Securities Act of 1933, as amended, relating to 125,734 shares of Common Stock,
par value $.001, of the Company ("Common Stock") issuable (i) upon the exercise
of options originally granted by Hexagen Limited and its predecessor Hexagen
plc, a wholly owned subsidiary of the Company ("Hexagen"), under The Hexagen
Limited Unapproved Company Share Option Plan 1996 (the "Stock Plan"), which
options were assumed by the Company and (ii) upon the exercise by the Company of
its rights under those certain Share Exchange Option Agreements dated as of
September 21, 1998 between the Company and certain former holders of options to
purchase ordinary shares of Hexagen. We advise you that, in our opinion, such
shares of the Common Stock, when issued and sold in accordance with the
applicable Plan or agreement and the Registration Statement, as declared
effective, will be legally issued, fully paid and nonassessable.

     We hereby consent to the filing of this opinion with the Securities and
Exchange Commission as Exhibit 5.1 to the Registration Statement.

                                        Very truly yours,


                                      /s/ PILLSBURY MADISON & SUTRO LLP





E-09545




<PAGE>


                                                                 EXHIBIT 10.1

















                         THE HEXAGEN LIMITED UNAPPROVED

                         COMPANY SHARE OPTION PLAN 1996



                  Adopted by the Company on 18th November 1996
                          Amended on 28th January 1997
                         Amended on 21st September 1998













                                 Cameron McKenna
                       Mitre House, 160 Aldersgate Street
                                 London EC1A 4DD
                      Tel: 0171 367 3000 Fax: 0171 367 2000


<PAGE>



                                TABLE OF CONTENTS

                                                                          Page
                                                                          ----

1.    Definitions..........................................................1

2.    Participation........................................................3

3.    Exercise Condition and Vesting.......................................4

4.    Market Value.........................................................5

5.    Rights to exercise options...........................................5

6.    Exercise of options..................................................7

7.    Adjustment of options for variation of share capital.................7

8.    Expenses.............................................................8

9.    Indemnity............................................................8

10.   Administration.......................................................9

11.   General..............................................................9

12.   Alterations........................................................ 10

13.   Trustees........................................................... 10

14.   Inland Revenue Requests............................................ 10

15.   Termination........................................................ 11



                                       -i-

<PAGE>
<TABLE>
<CAPTION>
<S>      <C>                                   <C>


1.     Definitions

1.1    In this Plan the words and expressions set out below shall have the
       meanings specified against them unless otherwise specifically
       provided and any reference to a provision of an Act of Parliament
       shall include any modification, consolidation, re-enactment or
       extension of it.

       "the Auditors"                          the auditors (acting as expert not arbitrators) for 
                                               the time being of the Company or in the event of there 
                                               being joint auditors such one of them as the Directors 
                                               shall select;

       "Business Day"                          a day on which mid market spot currency rates against
                                               pounds sterling are published in the Financial Times;

       "the Company"                           Hexagen Limited;

       "Control"                               the meaning given to that expression by Section 840 of the
                                               Taxes Act;

       "Date of Adoption"                      the date of the adoption of this Plan;

       "Date of Announcement"                  the date on which the Company makes an announcement of
                                               its results for the last preceding financial year, half year or
                                               other period;

       "Date of Grant"                         the date which is specified in the Option Certificate issued in
                                               accordance with Rule 2.5;

       "Dealing Day"                           a day on which the London Stock Exchange or any other
                                               market that is supervised by a regulatory authority is open
                                               for the transaction of business;

       "Directors"                             the Directors for the time being of the Company or the
                                               Directors present at a duly convened meeting of the
                                               Directors or of a duly appointed committee of the
                                               Directors at which a quorum is present including, without
                                               limiting the generality of the foregoing, the
                                               Remuneration Committee;

       "Eligible Person"                       any person who at the Date of Grant, is a director of the
                                               Company and/or any Subsidiary or any employee of the
                                               Company and/or any Subsidiary;

       "Exercise Condition"                    a condition attaching to an Option in accordance with Rule
                                               2.2;

       "Group Member"                          a Participating Company or a body corporate which is
                                               (within the meaning of Section 736 of the Companies Act
                                               1985) the Company's holding company or a Subsidiary of
                                               the Company's holding company or any other body
                                               corporate nominated by the Board for this purpose which is
                                               not under the Control of any single person, but is under the
                                               Control of two or more persons, one of whom being the
                                               Company or the Company's holding company and in relation
                                               to which the Company, or as the case may be, the
                                               Company's holding company is able (whether directly or

                                       -1-


<PAGE>


                                               indirectly) to exercise 20% or more of its equity voting
                                               rights;

       "Issue or Re-organisation"              any issue of shares or other securities of the Company (other
                                               than as consideration for an acquisition) and/or any
                                               capitalisation, consolidation or sub-division or reduction of
                                               share capital in the Company and/or any other variation in
                                               the share capital of the Company which in the opinion of the
                                               Auditors justifies a variation in the number of shares subject
                                               to an Option and/or the Option Price pursuant to that Option;

       "the London Stock Exchange"             London Stock Exchange Limited;

       "Market Value"                          such value per share, in relation to which an Option is to be
                                               granted, as the Company may consider to be the market
                                               value thereof on the day preceding the relevant Date of
                                               Grant or, if later, the date of the Directors' resolution to
                                               grant an Option pursuant to Rule 2.5 and determined in
                                               accordance with Part VIII of the Taxation of Chargeable
                                               Gains Act 1992 or if such shares are at that time listed on
                                               the London Stock Exchange the average of the middle
                                               market quotations of a share as derived from the London
                                               Stock Exchange Daily Official List on the 3 Dealing Days
                                               preceding the relevant Date of Grant or if such shares are at
                                               that time not listed on the London Stock Exchange but are
                                               listed on another market supervised by any regulatory
                                               authority the average of the middle market quotations of a
                                               share as derived from the relevant official daily publication
                                               of that market on the three Dealing Days preceding the
                                               relevant Date of Grant (and where the price is not quoted in
                                              (pound) Sterling converted at the closing mid-point spot rate of
                                               exchange in the London foreign exchange markets);

       "Non-vested Option"                     shall be that part of an Option that has the meaning
                                               described in Rule 3.2;

       Normal Anticipated Retirement           the date upon which an Eligible Person attains 65 years of
       Date"                                   age or such other age at which an Eligible Person is required to 
                                               retire by his contract of employment;

       "Option"                                a right granted to acquire shares in the Company;

       "Option Certificate                     a certificate issued to an Option Holder in accordance with
                                               Rule 2.5;

       "Option Holder"                         a person holding an Option;

       "Option                                 Price" the acquisition price for a share comprised in any
                                               Option which shall be determined by the Directors
                                               and shall be not less than the nominal value of a share;

       "Parallel Options"                      options granted contemporaneously under any other
                                               discretionary share option scheme adopted by the Company

                                       -2-


<PAGE>


                                               or any Subsidiary and which are expressed to be linked to
                                               Options granted under this Plan;

       "Participating Company"                 the Company and any Subsidiary which is for the time being
                                               nominated by the Directors to be a company participating in
                                               this Plan;

       "this Plan"                             the Hexagen Limited Unapproved Company Share
                                               Option Plan 1996 established by these Rules in its present
                                               form or as from time to time amended in accordance with
                                               the provisions hereof;

       "Redundancy"                            dismissal by reason of redundancy within the meaning
                                               given to that term by the Employment Protection
                                               (Consolidation) Act 1978 or the Contracts of Employment
                                               and Redundancy Payments Act (Northern Ireland) 1965;

       "the Remuneration Committee"            the remuneration committee of the board of Directors;

       "Retirement"                            retirement at Normal Anticipated Retirement Date
                                               or such other date at which it is agreed with the Group
                                               Member by which he is employed that such Eligible
                                               Person may retire;

       "Subsidiary"                            a company which is both under the Control of the Company
                                               and which is a subsidiary of the Company within the
                                               meaning of Section 736 of the Companies Act 1985;

       "the Taxes Act"                         the Income and Corporation Taxes Act 1988 (as amended);

       "Vested Option"                         shall be that part of an Option that has the meaning
                                               described in Rule 3.2;

       "Vested Shares"                         shares allotted or transferred to an Option Holder pursuant to
                                               Rule 6.3 following the valid exercise of a Vested Option;

       "Year of Assessment"                    a fiscal year from 6th April to 5th April;
</TABLE>

1.2      In these Rules unless the context otherwise requires words denoting the
         singular number shall include the plural number and words denoting the
         masculine gender shall include the feminine gender.


2.       Participation

2.1      The Directors with the approval of the Remuneration Committee may, on
         such dates as they shall determine (subject to Rules 2.3 and 2.4 below)
         grant Options to such Eligible Persons as they may in their absolute
         discretion select. No Eligible Person shall be entitled as of right to
         participate in this Plan.

2.2      The Directors acting on the recommendation of the Remuneration
         Committee may impose an objective condition on any Option which they
         grant preventing its exercise (other than in accordance with Rules 5.2,
         (except in the case of Retirement) and 5.3) unless such condition has
         been complied with ("the Exercise Condition"). If, after the Directors
         have imposed an Exercise Condition, events happen which cause them to
         consider that it is no longer appropriate they may vary the Exercise
         Condition.


                                       -3-


<PAGE>



2.3      Subject to Rule 2.4 below if and for so long as the shares in the
         Company are admitted to the Official List of the London Stock Exchange
         or are admitted to trading on the Alternative Investment Market or in
         any other market supervised by any regulatory authority the Directors
         may only grant Options within the periods commencing:

         2.3.1      on the fourth Dealing Day next following the Date of 
                    Adoption and ending 42 days after such Date of Adoption; or

         2.3.2      on the fourth Dealing Day next following a Date of
                    Announcement and ending 42 days after such Date of
                    Announcement.

2.4      Notwithstanding Rule 2.3 above the Directors may grant Options outside
         the periods specified in Rule 2.3 above in circumstances which the
         Directors in their absolute discretion deem sufficiently exceptional to
         justify the grant of options at that time.

2.5      The Directors shall grant Options by resolution. As soon as practicable
         thereafter, the Directors shall issue in respect of each Option granted
         as aforesaid an Option Certificate given under seal or executed as a
         deed which Option Certificate will specify the Date of Grant. The
         Option Certificate shall be in such form as the Directors shall from
         time to time determine and shall specify the number of shares comprised
         in the Option, the Date of Grant as determined by the Directors, any
         Exercise Condition and Parallel Option Condition and the Option Price.
         For the avoidance of doubt the Directors may specify a Date of Grant
         which pre-dates the date of the resolution to grant an Option.

2.6      Any Eligible Person to whom an Option is granted may by notice given in
         writing within 30 days after the Option Certificate is issued to them
         renounce his rights thereto, in which event such Option shall be deemed
         for all purposes never to have been granted.

2.7      Each Option shall be personal to the Option Holder to whom it is
         granted and other than a transfer to the Option Holder's personal
         representatives on death shall not be transferable, assignable or
         chargeable. Any other purported transfer, assignment, charge, disposal
         or dealing with the rights and interests of the Option Holder under
         this Plan shall render the Option void.

2.8      The Directors may also impose a condition ("the Parallel Option
         Condition") on any Option that in the event of the Option Holder
         exercising a Parallel Option, that Option shall immediately lapse in
         respect of the underlying shares in respect of which the Parallel
         Option shall have been exercised.

2.9      For the purpose of Rule 2.8 Options shall be treated as lapsing in the
         order in which they were originally granted.

2.10     In the event of an Option lapsing under Rule 2.8 in part only, the
         balance of the Option shall continue to be exercisable in accordance
         with this Plan.


3.       Exercise Condition and Vesting

3.1      An Option granted pursuant to this Plan shall, unless decided otherwise
         by the Directors and stated on the Option Certificate, be subject to a
         vesting arrangement such that the following Exercise Condition shall
         apply:



                                       -4-


<PAGE>


    Time of Exercisability                    Maximum percentage of relevant
    ----------------------                    ------------------------------
      of relevant option                       option that may be exercised
      ------------------                       ----------------------------



prior to 1st anniversary of the Date of Grant             0%




upon the 1st anniversary of the Date of Grant             25%




after 1 year from the Date of Grant but the       25% plus approximately
before the 4th anniversary from Date of Grant     2.0834% for each complete 
                                                  month after the first 12 
                                                  months from the Date of Grant



on or after the 4th anniversary of the                   100%
Date of Grant 



3.2      The part of an Option which has become exercisable pursuant to the
         terms of Rule 3.1 or any other Exercise Condition that may be imposed
         shall be termed a "Vested Option", whereas the part of an Option which
         has yet to reach the date of exercise pursuant to the terms of Rule 3.1
         or any other Exercise Condition shall be termed a "Non-vested Option".

3.3      Upon the allotment or transfer of Vested Shares to an Option Holder (or
         his nominee), the shares shall be the property of the Option Holder.
         For the avoidance of doubt, the allotment or transfer of such Vested
         Shares to an Option Holder (or his nominee) shall be irrevocable
         regardless of whether the Option Holder remains or ceases to be an
         eligible person of a Group after the date of allotment or transfer as
         the case may be.


4.       Market Value

4.1      For the purpose of this Plan, the market value of the shares in
         relation to which the Option was granted shall be calculated in the
         case of an Option granted under this Plan by reference to the Market
         Value (as defined in Rule 1.1 above).

4.2      No Options shall in any event be offered more than 10 years after the 
         Date of Adoption.


5.       Rights to exercise options

5.1      Subject to the provisions of Rules 5.2 and 5.3 an Option shall be 
         capable of being exercised in accordance with the provisions of Rule 6:

         5.1.1      not earlier than such date as the Directors shall decide 
                    and indicate in the Option Certificate
                    concerned; and


                                       -5-


<PAGE>



         5.1.2      before the seventh anniversary of its Date of Grant or such
                    earlier date as the Directors may specify,

         Provided that any relevant Exercise Condition has been satisfied,
         unless the Rules provide otherwise.

         No Option may be granted, exercised, released or surrendered at a time
         when such grant, exercise, release or surrender would not be in
         accordance with the "Model Code for Securities Transactions by
         Directors of Listed Companies" issued by the London Stock Exchange as
         amended from time to time.

5.2      If an Option Holder ceases for any reason (otherwise than by reason of
         his death) to be an Eligible Person of a Group Member any Vested Option
         at the date of such event or cessation held by him may (and subject to
         Rule 5.3 below may, if at all) be exercised within 12 months of such
         event or cessation subject always to satisfaction of any relevant
         Exercise Condition. Any Non-vested Option shall lapse upon the date of
         such event or cessation and shall not be exercisable during the period
         of 12 months thereafter or at any other time unless the Directors
         otherwise permit.

         For the avoidance of doubt and without prejudice to the generality of
         this Rule 5.2 the reasons for an Option Holder ceasing to be an
         Eligible Person of a Group Member includes: termination of his
         employment with a Group Member by him or by a Group Member under the
         conditions of his contract with such Group Member; injury; disability;
         pregnancy; sickness; Redundancy; Retirement; the company for which the
         Option Holder works ceasing to be a Group Member; or the business or
         part- business in which the Option Holder works being transferred to a
         person who is not a Group Member.

         An Option Holder shall not be treated for the purposes of this Rule 5.2
         as ceasing to be an Eligible Person of a Group Member until such time
         as he is no longer a director or employee of any Group Member, and a
         female Option Holder who ceases to be such an Eligible Person by reason
         of pregnancy or confinement and who returns to work at the end of the
         maternity leave period conferred on her by section 33 of the Employment
         Protection (Consolidation) Act 1978 or who exercises her right to
         return to work following maternity absence in the circumstances
         described in section 39 of the Employment Protection (Consolidation)
         Act 1978 (or otherwise returns to work if the Directors so determine)
         before exercising an Option under this Plan shall be treated for those
         purposes as not having ceased to be such an Eligible Person. For the
         avoidance of doubt the period of maternity absence for a female Option
         Holder who returns to work in the circumstances described in Section 39
         of the Employment Protection (Consolidation) Act 1978 shall qualify in
         full for any vesting period pursuant to the Exercise Condition set out
         in Rule 3.1 or any other Exercise Condition meaning that there shall be
         no interruption in any vesting period during such maternity absence.

5.3      If an Option Holder dies before exercising an Option granted to him
         under this Plan and at a time when he is either an Eligible Person of a
         Group Member or entitled to exercise the Option by virtue of Rule 5.2
         above, any Vested Option at the date of his death may (and must, if at
         all) be exercised by his personal representatives within 12 months
         after the date of his death. Any Non-vested Option shall lapse upon the
         date of his death and shall not be exercisable by his personal
         representatives during the period of 12 months thereafter or at any
         other time, unless the Directors otherwise permit. For the avoidance of
         doubt, if an Option Holder dies before exercise of a Vested Option in
         the 12 months subsequent to his ceasing to be an Eligible Person of a
         Group Member pursuant to Rule 5.2 above, his personal representatives
         may exercise the Vested Option within 12 months after the date of
         death, notwithstanding the period that has elapsed since his ceasing to
         be an Eligible Person of a Group Member.

5.4      Notwithstanding any other provision of this Plan, an Option granted
         under this Plan may not be exercised after the expiration of the period
         of 7 years (or such shorter period as the Directors may have determined
         before the grant thereof) beginning with the Date of Grant.



                                       -6-


<PAGE>



6.       Exercise of options

6.1      Options may be exercised in whole or in part.

6.2      The exercise of any Option granted under this Plan shall be effected by
         giving notice to the Company and otherwise in such form and manner as
         the Directors may from time to time prescribe and, unless the Directors
         determine otherwise, any such notice shall have effect only on its
         receipt by the Company, together with the appropriate payment.

6.3      Subject to Rule 6.4 below, within 30 days after an Option under this
         Plan has been exercised by any person, the Directors on behalf of the
         Company shall allot to him (or his nominee) or, as appropriate, procure
         the transfer to him (or his nominee) of the number of shares in respect
         of which the Option has been exercised, provided that, for the
         avoidance of doubt, where shares are so allotted or transferred to a
         nominee, the beneficial interest in them must vest in the person who
         exercised the Option.

6.4      All shares allotted under this Plan shall rank pari passu in all
         respects with the shares of the same class for the time being in issue
         save as regards any rights attaching to such shares by reference to a
         record date prior to the date of the allotment, and in the case of the
         transfer of existing shares, the transferee shall not acquire any
         rights attaching to such shares by reference to a record date prior to
         the date of the transfer.

6.5      The allotment or transfer of any shares under this Plan shall be
         subject to obtaining any approval or consent mentioned in Rule 12.5
         below.


7.       Adjustment of options for variation of share capital

7.1      In the event of a subdivision of the outstanding shares ("Shares") of
         the company whose shares may be acquired by the exercise of Options
         granted under this Plan (hereinafter, the "Company"), a declaration of
         a dividend payable in Shares or other securities of the Company, a
         declaration of a dividend payable in a form other than Shares or other
         securities of the Company in an amount that has a material effect on
         the value of Shares, a combination or consolidation of the outstanding
         Shares into a lesser number of Shares, a recapitalisation, a spinoff, a
         reclassification or a similar occurrence, the Board of Directors of the
         Company (or the committee thereof to which administration of this Plan
         has been delegated) shall make appropriate adjustments in one or both
         of:

         7.1.1      the number of whole Shares issuable pursuant to the 
                    exercise of each outstanding Option; or

         7.1.2      the exercise price under each outstanding Option.

7.2      In the event that the Company is a party to a merger or other
         reorganisation, outstanding Options shall be subject to the agreement
         of merger or reorganisation. Such agreement may provide, without
         limitation:

         7.2.1      for the assumption of outstanding Options by the surviving
                    corporation or its parent and for the administration of the
                    Plan by the surviving corporation or its parent;

         7.2.2      for their continuation by the Company, if the Company is a 
                    surviving corporation;

         7.2.3      for payment of a cash settlement equal to the difference 
                    between the amount to be paid for a Share pursuant to such 
                    agreement and the exercise price; or


                                       -7-



<PAGE>


         7.2.4      for the acceleration of their exercisability followed by
                    the cancellation of Options not exercised,

         in all cases without the Option Holders' consent. Any cancellation
         shall not occur until after such acceleration is effective and Option
         Holders have been notified of such acceleration.

7.3      Except as provided in this Rule 7, an Option Holder shall have no 
         rights by reason of:

         7.3.1      any subdivision or consolidation of shares of stock of any 
                    class or series of the Company;

         7.3.2      the payment of any dividend; or

         7.3.3      any other increase or decrease in the number of shares of 
                    stock of any class or series of the Company.  Any issue by
                    the Company of shares of stock of any class or series, or
                    securities convertible into shares of stock of any class 
                    or series, shall not affect, and no adjustment by reason
                    thereof shall be made with respect to, the number or Option
                    Price of Shares subject to an Option.  The grant of an
                    Option pursuant to the Plan shall not affect in any way the
                    right or power of the Company to make adjustments, 
                    reclassifications, reorganisations or changes of its 
                    capital or business structure, to merge or consolidate or 
                    to dissolve, liquidate, sell or transfer all or any part 
                    of its business or assets.

7.4      As soon as reasonably practicable after making any adjustment under
         Rule 7.1 above, the Directors shall give notice in writing thereof to
         any Option Holders affected thereby.


8.       Expenses

         Any expenses of the Company involved in any issue or transfer of shares
         in the name of any Option Holder or his personal representative(s) or
         nominee(s) shall be payable by the Company.


9.       Indemnity

9.1      In any case where an Option holder exercises his option and:

         9.1.1      the Company is treated, by virtue of any of Sections 203B to
                    203I of the Taxes Act, as having made a payment of income of
                    an Option holder which is assessable to income tax under
                    Schedule E; and

         9.1.2      the Company is required by virtue of Section 203J(3) of the
                    Taxes Act, to account for an amount of income tax ("the 
                    due amount") in respect of that payment;

         the Option holder shall, before the end of the period of thirty days
         from the date on which the Company is treated as making that payment,
         make good to the Company the amount so accounted for.

9.2      Unless the Option holder pays the due amount to the Company in
         accordance with Rule 9.1, shares will not be issued or transferred to
         the Option Holder, as the case may be, nor shall the Option holder's
         name be entered in the Register of Members of the Company until such
         time as the due amount is paid to the Company.



                                       -8-



<PAGE>



10.      Administration

10.1     Any notification or other notice in writing which the Company is
         required to give, or may desire to give, to any Eligible Person or
         Option Holder (or his personal representative(s)) in pursuance of this
         Plan shall be sufficiently given if delivered to him by hand or sent
         through the post in prepaid cover addressed to the Eligible Person or
         Option Holder (or his personal representative(s)) at the last address
         known to the Company as being his address. Any certificate,
         notification or other notice in writing required to be given to the
         Company shall be properly given if sent to or delivered to the Company
         at its registered office. Any notification, certificate or other
         notices sent by post shall be deemed delivered on the second day
         following the date of posting. All notices documents certificates given
         by or to an Eligible Person or Option Holder (or his personal
         representative(s)) shall be sent at his risk.

10.2     Option Holders (or their personal representative(s)) shall have made
         available to them copies of all notices and other documents sent by the
         Company to its holders of shares generally.


11.      General

11.1     The Directors shall at all times ensure that there are sufficient
         shares available as may be required to meet the subsisting rights of
         Option Holders by either ensuring that the Company shall at all times
         keep available for allotment unissued shares at least sufficient to
         satisfy Options under which shares may be subscribed for and/or to
         procure that sufficient shares are available for transfer to satisfy
         Options.

11.2     The Company shall at its expense make application to the London Stock
         Exchange for admission to the Official List of all shares allotted
         pursuant to the exercise of any Option provided that shares are at that
         time listed on the London Stock Exchange.

11.3     The decision of the Directors in any dispute or question relating to
         any Option shall be final and conclusive, subject to the written
         confirmation of the Auditors whenever required under the provisions of
         this Plan.

11.4     Participation in this Plan by an Option Holder is a matter entirely
         separate from any pension right or entitlement he may have and from his
         terms or conditions of employment with any Group Member and
         participation in this Plan shall in no respects whatever affect in any
         way an Option Holder's pension rights or entitlement or terms or
         conditions of employment with any Group Member. In particular (but
         without limiting the generality of the foregoing words) any Option
         Holder who leaves employment with any Group Member shall not be
         entitled to any compensation for any loss of any right or benefit or
         prospective right or benefit under this Plan which he might otherwise
         have enjoyed whether such compensation is claimed by way of damages for
         wrongful dismissal or breach of contract or by way of compensation for
         loss of office or otherwise howsoever.

11.5     The grant of an Option shall be subject to obtaining any approval or
         consent required under the provisions of the document "Admission of
         Securities to Listing" published by the London Stock Exchange, of the
         City Code on Takeovers and Mergers, or of any regulations and
         enactments.

11.6     In the event that shares are transferred or issued to an Option Holder
         in pursuance of any Option granted under this Plan, the Option Holder
         shall, if so required by the person making the transfer, join that
         person in making a claim for relief under section 165 of the Taxation
         of Chargeable Gains Act 1992 in respect of the disposal made by him in
         effecting such transfer.



                                       -9-



<PAGE>



12.      Alterations

12.1     Subject to Rules 12.2, 12.4 and 12.5 below, the Directors may at any
         time alter or add to all or any of the provisions of this Plan, or the
         terms of any Option granted under it (including the Exercise
         Condition), in any respect. For the avoidance of doubt however no
         alteration, deletion or addition to the Exercise Condition shall
         require the approval by ordinary resolution of the members of the
         Company in general meeting, as described in Rule 12.2.

12.2     Subject to Rule 12.3 below, no alteration or addition to the advantage
         of Option Holders shall be made under Rule 12.1 above without the prior
         approval by ordinary resolution of the members of the Company in
         general meeting.

12.3     Rule 12.2 above shall not apply to any alteration or addition which:-

         12.3.1            is necessary or desirable in order to comply with the
                           provisions of any proposed or existing legislation,
                           or to obtain or maintain favourable taxation,
                           exchange control or regulatory treatment of any
                           Participating Company, Group Member or Option Holder,
                           and is not made to Rule 3 above or

         12.3.2            is minor in nature and is made to benefit the 
                           administration of this Plan.

12.4     No alteration or addition to the disadvantage of any Option Holder 
         shall be made under Rule 12.1 above unless:-

         12.4.1    the Directors shall have invited every relevant Option 
                   Holder to give an indication as to whether or not he
                   approves the alteration or addition, and

         12.4.2    the alteration or addition is approved by a majority of 
                   those Option Holders who have given such an indication.

12.5     As soon as reasonably practicable after making any alteration or
         addition under Rule 12.1 above, the Directors shall give notice in
         writing thereof to any Option Holder affected thereby.


13.      Trustees

         A Participating Company may provide money to the trustees of any trust
         or any other person to enable him to acquire shares to be held for the
         purposes of this Plan, or enter into any guarantee or indemnity for
         these purposes, to the extent permitted by Section 153 of the Companies
         Act 1985.


14.      Inland Revenue Requests

         The Company shall provide to the Inland Revenue (within such time limit
         as the Inland Revenue directs) any information required by it and an
         Option Holder shall:-

14.1     promptly provide to the Company such information as it may reasonably
         request; and

14.2     consent to the Company providing such information concerning him to the
         Inland Revenue for the purpose of complying with such request from the
         Inland Revenue.



                                      -10-


<PAGE>



15.      Termination

         The Company in general meeting or the Directors may at any time resolve
         to terminate this Plan in which event no further Options shall be
         granted, but the provisions of this Plan shall in relation to Options
         then subsisting continue in full force and effect.



                                      -11-




<PAGE>



                                                                EXHIBIT 10.2


Dated
1998

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



                         [                                ]

                                       AND

                          INCYTE PHARMACEUTICALS, INC.

                                       AND

                                 HEXAGEN LIMITED



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

                         SHARE EXCHANGE OPTION AGREEMENT
                    ----------------------------------------











                                 Cameron McKenna
                                   Mitre House
                              160 Aldersgate Street
                                 London EC1A 4DD

                              T +44(0)171 367 3000
                              F +44(0)171 367 2000




<PAGE>



                                Table of Contents


1. Recitals..............................................................1

2. Definitions...........................................................1

3. Grant of Exchange Option..............................................2

4. Exercise of Original Option by Option Holder..........................2

5. Exercise of Option Holder Exchange Option.............................2

6. Exercise of Incyte Exchange Option....................................2

7. Consideration.........................................................3

8. Completion............................................................3

9. Transfer Formalities..................................................3

10. Governing Law........................................................3



                                       -i-



<PAGE>



Dated:

BETWEEN:

(1)                      of                         (the "Option Holder"); and

(2)      INCYTE PHARMACEUTICALS, INC., a corporation incorporated in the State
         of Delaware, USA whose principal place of business is at 3174 Porter
         Drive, Palo Alto, CA 94304, United State of America ("Incyte"); and

(3)      HEXAGEN LIMITED (registered in England with number 317808) whose
         registered office is at 214 Cambridge Science Park, Milton Park,
         Cambridge, CB4 4WA ("Hexagen").

1.       Recitals

1.1      The Option Holder holds options over [ ] ordinary shares in Hexagen
         (the "Original Share Option") pursuant to an option agreement between
         the Option Holder and Hexagen executed on __________________________
         (the "Original Option Agreement").

1.2      Upon exercise of the Original Share Option the Option Holder wishes to
         have the opportunity to offer to Incyte and Incyte wishes to have the
         opportunity to require the purchase of the Hexagen ordinary shares
         issued in respect thereof in exchange for Incyte Common Stock.

1.3      Incyte is prepared to offer to the Option Holder in exchange for his
         ordinary shares in Hexagen such number of shares of Incyte Common Stock
         as is determined in accordance with the provisions of this Agreement.
         Should the Original Share Option be exercised in full, [ ] shares of
         Incyte Common Stock (subject to adjustment as provided in clause 7.1)
         would be offered in exchange for such Hexagen shares.


2.       Definitions

         "Incyte Common Stock" means the common stock, $0.001 par value, of
         Incyte, and any securities of Incyte issued as a dividend or other
         distribution with respect to or in exchange for or in replacement of
         such Common Stock.

         "Incyte Exchange Option" means the option granted to Incyte under 
         clause 3.1;

         "Exchange Options" means the Incyte Exchange Option and the Option 
         Holder Exchange Option;

         "Exchange Ratio" means the calculation set out at Schedule III to the
         Share Purchase Agreement between Incyte, Hexagen and the shareholders
         of Hexagen being Appendix A to an agreement between Incyte and Hexagen
         dated 14th August 1998;

         "Exchange Shares" means the Incyte Common Stock to be issued and 
         exchanged by Incyte for Hexagen Shares as set out herein;

         "Original Option Agreement" means an Agreement granting the Original
         Share Option to the Option Holder under the terms and conditions
         specified therein;

         "Original Share Option" means the option to acquire ordinary shares in
         Hexagen granted by Hexagen pursuant to the Original Option Agreement to
         the Option Holder;


                                       -1-



<PAGE>



         "Option Holder Exchange Option" means the option granted to the Option
         Holder under clause 3.2; and

         "Hexagen Shares" means the ordinary shares in Hexagen issued to the
         Option Holder following the exercise of his Original Share Option.


3.       Grant of Exchange Option

3.1      The Option Holder grants to Incyte an option to purchase his Hexagen 
         Shares in accordance with the terms herein.

3.2      Incyte grants to the Option Holder an option to require Incyte to
         purchase his Hexagen Shares in accordance with the terms herein.


4.       Exercise of Original Option by Option Holder

         When the Original Share Option becomes exercisable the Option Holder
         may exercise it in whole or in part in accordance with the terms of the
         Original Share Option.


5.       Exercise of Option Holder Exchange Option

5.1      If the Option Holder wishes to exercise his Option Holder Exchange
         Option, he shall be required to give notice in writing (the "Exchange
         Exercise Notice") to Incyte of his intention to exercise the Option
         Holder Exchange Option no later than five days following his exercise
         of an Original Share Option, whether such exercise be in whole or part.
         The Exchange Exercise Notice shall indicate the number of Hexagen
         Shares in respect of which the exercise is to take effect.

5.2      For the avoidance of doubt, the Option Holder shall be entitled to so
         exercise his Option Holder Exchange Option on each occasion that he
         exercises an Original Share Option (whether in whole or part).


6.       Exercise of Incyte Exchange Option

6.1      The Option Holder is required to give notice in writing (the "Option
         Exercise Notice") to Incyte upon any exercise by him of the Original
         Share Option and such Option Exercise Notice shall be given no later
         than five days following his exercise of an Original Share Option. The
         Option Exercise Notice shall set out the number of shares in respect of
         which he has so exercised the Original Share Option. The Option Holder
         acknowledges that the service on Incyte itself of such Option Exercise
         Notice within five days of the exercise of an Original Share Option is
         to be a requirement for a valid exercise of the said Original Share
         Option.

6.2      If Incyte wishes to exercise its Incyte Exchange Option, it shall be
         required to give notice in writing to the Original Option Holder no
         later than five days following receipt of the Option Exercise Notice,
         such notice by Incyte to indicate the number of Hexagen Shares in
         respect of which it so exercises the Incyte Exchange Option.



                                       -2-



<PAGE>



7.       Consideration

7.1      On any exercise of an Incyte Exchange Option or an Option Holder
         Exchange Option, the consideration payable by Incyte for the
         acquisition of Hexagen Shares from the Option Holder shall be the issue
         of Exchange Shares in accordance with the Exchange Ratio provided
         always that in the event of a rights or capitalisation issue in respect
         of the shares in Incyte, or a reduction, consolidation, subdivision or
         reorganisation of Incyte's share capital, such number of Exchange
         Shares to be issued to the Option Holder shall be subject to adjustment
         by the Directors of Incyte so as to protect any appreciation in the
         value of the shares over which Incyte Exchange Option or an Option
         Holder Exchange Option is granted and if there be a dispute over the
         number of Exchange Shares to be issued hereunder, such dispute is to be
         settled by Incyte's auditors for the time being, acting as experts and
         not as arbitrators, who shall decide what is fair and reasonable.


8.       Completion

8.1      Completion of the exchange of any Hexagen Shares for Exchange Shares
         hereunder shall take place within seven business days of the giving of
         the relevant notice to exercise the Exchange Options hereunder pursuant
         to Clause 5 or Clause 6 as the case may be.

8.2      On the date of completion, Incyte shall issue a share certificate for
         the relevant number of Exchange Shares and deliver it to the Option
         Holder in exchange for the delivery by the Option Holder to Incyte of a
         share transfer, duly executed, in favour of the Company in respect of
         the relevant Hexagen Shares together with the certificate in respect of
         the Hexagen Shares.


9.       Transfer Formalities

         The Option Holder hereby irrevocably appoints such one of the Directors
         of Hexagen as Incyte shall nominate in writing as the Option Holder's
         attorney to execute, upon any completion as aforesaid, on his behalf
         any transfer of Hexagen Shares in favour of Incyte (or as Incyte may
         direct) and such other documents as may be necessary to transfer title
         thereto.


10.      Governing Law

         The construction, validity and performance of this Agreement shall be
         governed in all respects by English Law.

IN WITNESS whereof this Agreement has been executed as a Deed the day and year
first above written.

EXECUTED as a Deed by                    )
[                             ]          )
in the presence of:                      )

 ..................................           Signature of Witness

 ..................................           Name

 ..................................           Address

 ..................................

 ..................................           Occupation

                                       -3-



<PAGE>





EXECUTED as a Deed by                    )
INCYTE PHARMACEUTICALS, INC.             )
acting by                                )



Authorized Officer


Secretary



EXECUTED as a Deed by                    )
HEXAGEN LIMITED acting by                )



Director


Director/Secretary


                                       -4-




<PAGE>


                                                                EXHIBIT 23.1


               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

         We consent to the incorporation by reference in the Registration
Statement (Form S-8) pertaining to options issued by Incyte Pharmaceuticals,
Inc. to former optionholders of Hexagen Limited of our report dated January 12,
1998, except for "Principles of Consolidation" in Note 1 and paragraph 3 of
Note 7 as to which the date is January 22, 1998, with respect to the
consolidated financial statements of Incyte Pharmaceuticals, Inc. included in
its Current Report on Form 8-K dated June 12, 1998, filed with the Securities
and Exchange Commission.


                              /s/ ERNST & YOUNG LLP



Palo Alto, California
November 19, 1998





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