On September 16, 2020 Alligator Bioscience (Nasdaq Stockholm: ATORX) reported that the United States Patent and Trademark Office (USPTO) has issued U.S. Patent No. 10,774,150 which covers compositions of matter directed to Alligator’s bispecific drug candidate ATOR-1015 (Press release, Alligator Bioscience, SEP 16, 2020, View Source [SID1234565215]). The granted patent’s earliest expiry year is 2036.

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"ATOR-1015 constitutes a new concept, a tumor-localizing bispecific CTLA-4 antibody. Our invention addresses one of the key challenges within immuno-oncology, i.e. the narrow therapeutic window of CTLA-4 drugs. This is now protected by a granted US patent", commented Per Norlén, CEO at Alligator Bioscience.

ATOR-1015 is developed for the treatment of metastatic cancer. Promising safety data from the ongoing ATOR-1015 Phase I clinical study was presented at ASCO (Free ASCO Whitepaper) in June 2020. The Phase I dose escalation study is planned to be completed during the fourth quarter 2020 and the subsequent Phase Ib efficacy study in malignant melanoma is due to start in 2021.

The information was submitted for publication, through the agency of the contact person set out above, at 08:30 a.m. CEST on September 16, 2020.