On July 28, 2021 Protagonist Therapeutics, Inc. (Nasdaq:PTGX) ("Protagonist" or "the Company") reported its entry into an amended collaboration agreement (the "Restated Agreement") with Janssen Biotech, Inc., one of the Janssen Pharmaceutical Companies of Johnson & Johnson, relating to research, development, manufacture and commercialization of multiple oral Interleukin (IL)-23 receptor antagonist drug candidates (Press release, Protagonist, JUL 28, 2021, View Source [SID1234585331]). The compounds currently in development are PTG-200, an oral IL-23 receptor antagonist in Phase 2 development for the treatment of Crohn’s disease (CD), and PN-232 and PN-235, two second-generation oral IL-23 receptor antagonist candidates. PN-232 and PN-235 are currently in Phase 1 clinical development.
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The amended agreement provides for the concurrent development of multiple oral IL-23 receptor antagonists against a broad range of indications. As such, certain development milestones have been reconfigured based on multiple drug candidates advancing in parallel. Protagonist remains eligible to potentially receive approximately $900 million in future development and sales milestones, in addition to the $80 million in payments already received under the original agreement. Royalty rates remain unchanged. Janssen will have the right to continue research on IL-23 receptor antagonists developed during the collaboration for three years from the closing of the Restated Agreement.
Under the terms of the Restated Agreement, Janssen will conduct all future studies beyond those that are currently ongoing with PTG-200, PN-232 and PN-235 and will be solely financially responsible for any such studies. Accordingly, Protagonist’s development and expense obligations will be limited to its relative share of the currently ongoing studies with these candidates. With this revised agreement, Janssen will continue to deploy the breadth of its established global capabilities and proven experience toward further clinical development of these assets.
"We are very pleased with this amendment to our agreement, which reflects the successful trajectory of the collaboration to date, giving rise to the parallel development of multiple oral IL-23 receptor antagonists," said Dinesh Patel, PhD, President and Chief Executive Officer of Protagonist. "The progress from de novo discovery to development validates our innovative technology platform and its potential to develop oral peptide drugs for diverse clinical indications. We look forward to supporting our Janssen counterparts in their parallel development efforts for PTG-200, PN-232, and PN-235 in multiple indications, which may ultimately provide significant benefit to patients."
Janssen retains exclusive, worldwide rights to develop and commercialize PTG-200, PN-232, PN-235 and any other second-generation compounds derived from the research collaboration conducted under the Original Agreement, or Janssen’s further research under the Restated Agreement. Protagonist will have the right to co-detail up to two licensed products in ulcerative colitis (UC) and CD in the U.S. market.
Further details related to the Restated Agreement are available on the Company’s Form 8-K as submitted to the U.S. Securities and Exchange Commission.
Conference Call and Webcast Information
Protagonist management will host a conference call and webcast today at 5:00 p.m. ET to provide a brief overview of the amended collaboration agreement. To access the live call, dial (877) 870-4263 (U.S./Canada) or (412) 317-0790 (international) five minutes prior to the call and ask to be joined to the Protagonist Therapeutics call. A live and archived webcast will also be accessible in the Investors section of the Company’s website at www.protagonist-inc.com.