Alligator Announces First Patient Dosed in Shanghai Henlius Biotech, Inc. Phase 3 Clinical Trial

Lund, Sweden, November 27, 2024 - Alligator Bioscience (Nasdaq Stockholm: ATORX) today announced that the Company was notified that the first patient has been dosed in a Phase 3 clinical trial with Shanghai Henlius Biotech, Inc. Alligator out-licensed HLX22/AC101 to AbClon, Inc. in October 2016. Abclon, Inc. subsequently sub-licensed AC101 for clinical development by Shanghai Henlius Biotech Inc.

"We are pleased to announce that Henlius Biotech has dosed the first patient in its Phase 3 international multi-centre clinical trial of HLX22/AC101, aiming to provide a new first-line treatment for HER2-positive advanced gastric/gastroesophageal junction cancer. This progress demonstrates Henlius ' commitment to the HLX22/AC101 program. Also, this bodes well for Henlius ' completion of the ongoing Phase 2 trial, which will trigger a milestone payment to Alligator," said Søren Bregenholt, CEO of Alligator Bioscience.

For further information, please contact:

Søren Bregenholt, CEO
E-mail: soren.bregenholt@alligatorbioscience.com
Phone: +46 (0) 46 540 82 00

Johan Giléus, CFO
E-mail: johan.gileus@alligatorbioscience.com
Phone: +46 (0) 46 540 82 00

About Alligator Bioscience

Alligator is a clinical-stage biotechnology company developing tumor-directed immuno-oncology antibody drugs focused on the CD40 receptor. This validated approach promotes priming of tumor-specific T cells and reversing the immunosuppressive nature of the tumor microenvironment, with significant potential benefits for cancer patients across multiple types of cancer. Its portfolio includes lead drug candidate mitazalimab, for which the company reported unprecedented survival data at 18-months follow up in first-line metastatic pancreatic cancer patients in Phase 2 testing and is in preparation for Phase 3 development. The follow-on bispecific antibody ATOR-4066 is in preclinical testing. Alligator has a proprietary technology platform, comprised of two antibody libraries, ALLIGATOR-GOLD® and ALLIGATOR-FAB™, the powerful protein optimization strategy FIND® and the bispecific antibody format RUBY™, which drives rapid design and development of innovative drugs.

Alligator is listed on Nasdaq Stockholm (ATORX) and headquartered in Lund, Sweden.

For more information, please visit alligatorbioscience.com.

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Alligator Announces First Patient Dosed in Shanghai Henlius Biotech, Inc. Phase 3 Clinical Trial