Exhibit 2.1
-----------
Statement of Control Person
The Statement on Schedule 13G dated December 13, 2000 with respect to the common
stock par value $0.01 per share of Praecis Pharmaceuticals Inc.is filed by
Samuel D. Isaly in accordance with the provisions of Rule 13d-1(c) and Rule
13d-1(k) respectively as a control person (HC) of Orbimed Advisors, LLC and
Orbimed Advisors, Inc.
Orbimed Advisors, Inc. files this statement on Schedule 13G in accordance with
the provisions of Rule 13d-1(b) and Rule 13d-1(k) respectively as an investment
advisor (IA) and Orbimed Advisors, LLC files this statement on Schedule 13G in
accordance with the provisions or Rule 13d-1(c) and 13d-1(k) respectively as a
corporation (CO).
