Exhibit 99.4 LEASE TERMINATION AGREEMENT This Lease Termination Agreement ("Agreement") is made and entered into effective as of the 13th day of January, 2005 by and between PHARMAFRONTIERS CORP., Assignee of OPEXA PHARMACEUTICALS, INC., ("Tenant")...Lease Termination Agreement • February 4th, 2005 • Pharmafrontiers Corp • Pharmaceutical preparations • Texas
Exhibit 99.3 TERMINATION, SETTLEMENT AND RELEASE AGREEMENT This Termination, Settlement and Release Agreement (the "Termination Agreement") is made this 31st day of October, 2004 ("Effective Date"), by and between PharmaFrontiers Corp., a Texas...Termination, Settlement and Release Agreement • February 4th, 2005 • Pharmafrontiers Corp • Pharmaceutical preparations • Texas
Exhibit 99.2 AMENDED EMPLOYMENT AGREEMENT This Revised Employment Agreement (this "Revised Agreement") is made and entered into as of the 10th day of September, 2004, (the "Effective Date"), by and between Warren C. Lau (hereinafter referred to as...Employment Agreement • February 4th, 2005 • Pharmafrontiers Corp • Pharmaceutical preparations • Texas
