Exhibit 99.4 FIRST ADDENDUM TO REGISTRATION RIGHTS AGREEMENT This FIRST ADDENDUM TO REGISTRATION RIGHTS AGREEMENT (the "Addendum") is made and entered into as of November 22, 2002, by and among Boston Life Sciences, Inc., a Delaware corporation (the...Registration Rights Agreement • November 25th, 2002 • Boston Life Sciences Inc /De • Pharmaceutical preparations
Exhibit 99.1 CONSENT TO TRANSFER AND WARRANT AMENDMENT This Consent to Transfer and Warrant Amendment (the "Agreement") made as of the 22nd day of November, 2002, between Boston Life Sciences, Inc., a Delaware corporation (the "Company"), and Ingalls...Consent to Transfer and Warrant Amendment • November 25th, 2002 • Boston Life Sciences Inc /De • Pharmaceutical preparations • New York
