Exhibit 10.20 FIRST AMENDMENT TO AGREEMENT This FIRST AMENDMENT TO AGREEMENT (this "Amendment") is made this 21st day of February, 1997, between ViroPharma Incorporated (formerly ViroPharma, Inc.), a Delaware corporation ("VP"), having its principal...Agreement • June 25th, 1997 • Viropharma Inc • Pharmaceutical preparations
DEVELOPMENT AGREEMENT --------------------- This Agreement is entered into this 16th day of April, 1997, by and between SELOC AG, a corporation organized under the laws of Switzerland with a principal place of business at Industriestrasse 7, 4410...Development Agreement • June 25th, 1997 • Viropharma Inc • Pharmaceutical preparations • Pennsylvania
CENTOCOR LOGO APPEARS HERE] Pharmaceutical Division May 6, 1997 Claude H. Nash President ViroPharma, Inc. 76 Great Valley Parkway Malvern, PA 19355 Re: Lease Agreement: 76 Great Valley Parkway Dear Mr. Nash: In furtherance of your discussion with...Lease Agreement • June 25th, 1997 • Viropharma Inc • Pharmaceutical preparations
In furtherance of your discussion with Daniel Schmoyer concerning the subject lease agreement, Centocor is willing to extend the termination date from September 30, 1997 to March 31, 1998, keeping all other terms of the existing lease in full force and effect. Otherwise, your lease of the premises terminates on September 30, 1997 and Centocor will reoccupy the area thereafter.
