SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 __________________ FORM 8-K/A CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED) September 19, 2002 UNIGENE LABORATORIES, INC. (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER) DELAWARE 0-16005 22-2328609 (STATE OR OTHER JURISDICTION (COMMISSION (I.R.S. EMPLOYER OF INCORPORATION) FILE NUMBER) IDENTIFICATION NO.) 110 LITTLE FALLS ROAD FAIRFIELD, NEW JERSEY 07004 (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES) (ZIP CODE) REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE (973) 882-0860 ITEM 4. CHANGES IN REGISTRANT'S CERTIFYING ACCOUNTANT On August 30, 2002, Unigene Laboratories, Inc. (the "Company"), decided to appoint Grant Thornton LLP as its new independent auditor. The Company's Audit Committee and Board of Directors participated in and approved the decision to appoint Grant Thornton. Grant Thornton was engaged by the Company to be its independent auditor on September 19, 2002. During the two most recent fiscal years ended December 31, 2001 and 2000 and through the date of this Form 8-K/A, neither the Company, nor anyone on its behalf, has consulted with Grant Thornton regarding either the application of accounting principles to a specified transaction, either completed or proposed, or the type of audit opinion that might be rendered on the Company's financial statements, or any matters or reportable events described under Item 304(a)(2)(i) and (ii) of Regulation S-K. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. UNIGENE LABORATORIES, INC. /s/ Warren P. Levy --------------------------- Date: September 19, 2002 By: Warren P. Levy President (Chief Executive Officer)