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GLSI vs PTHS

Greenwich LifeSciences, Inc. and Pelthos Therapeutics Inc.

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Greenwich LifeSciences, Inc.

Greenwich LifeSciences, Inc., a clinical-stage biopharmaceutical company, develops novel cancer immunotherapies for breast cancer and other HER2/neu-expressing cancers in the United States and Romania. Its lead product candidate is GP2, an immunotherapy, which is in Phase III clinical trial to prevent breast cancer recurrences in patients who have previously undergone surgery. The company also develops FLAMINGO-01, which is in Phase III clinical trial designed to evaluate the safety and efficacy of GLSI-100 (GP2 + GM-CSF) in HER2 positive breast cancer patients. Greenwich LifeSciences, Inc. was formerly known as Norwell, Inc. and changed its name to Greenwich LifeSciences, Inc. in March 2018. The company was incorporated in 2006 and is headquartered in Stafford, Texas.

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Pelthos Therapeutics Inc.

Pelthos Therapeutics Inc., a bio-pharmaceutical company, develops and commercializes therapeutic products to help patients with unmet treatment burdens. The company offers ZELSUVMI for the treatment of molluscum contagiosum in adults and children 1 year of age and older. It also provides NITRICIL, a proprietary nitric oxide-based technology platform. The company was formerly known as Channel Therapeutics Corporation and changed its name to Pelthos Therapeutics Inc. in July 2025. Pelthos Therapeutics Inc. was founded in 2002 and is based in Durham, North Carolina.

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