LEO Pharma and PellePharm collaborate on the development of patidegib topical gel 2% to treat Gorlin syndrome.

LEO Pharma and PellePharm announced a strategic development and commercialization collaboration to address unmet medical needs across various skin diseases with no approved treatments, advancing innovation and access to potential therapies for patients with life-altering conditions, such as Gorlin Syndrome and High Frequency Basal Cell Carcinoma (BCC), two distinct and rare forms of skin cancer.

Under the terms of the agreement, LEO Pharma has initially committed $70 million comprised of equity financing and financial R&D support to fund the global Phase III trial for patidegib topical gel 2% for the prevention and treatment of Gorlin Syndrome, with LEO Pharma securing an option to acquire all shares in PellePharm. PellePharm and its stockholders could receive up to an additional $690 million including merger consideration, and regulatory and commercial milestone payments. In addition, PellePharm stockholders are eligible to receive a double-digit royalty after achieving certain commercial milestones.

PellePharm�s 2% topical formulation of patidegib aims to be the first approved therapy for the prevention of Gorlin Syndrome, also known as Basal Cell Carcinoma Nevus Syndrome (BCCNS), and has shown early promise in Phase II clinical trials treating patients with Gorlin Syndrome and Sporadic BCC in both the U.S. and the U.K.

Gorlin Syndrome is a rare, genetic disease characterized by constitutional, heritable mutations in one allele of the tumor suppressor gene encoding PATCHED1 (PTCH1), which acts as the primary inhibitor of the hedgehog signaling pathway. This leads to the formation of multiple basal cell carcinomas, often on the face. With no FDA-approved drugs available for Gorlin Syndrome, the standard of care is surgery. People with severe Gorlin Syndrome may have as many as 30 surgeries per year, which can be repetitive, scarring and disfiguring. Approximately 10,000 people in the United States, or one in 31,000, are believed to be affected by Gorlin Syndrome. Gorlin Syndrome is known by several names, including Gorlin-Goltz Syndrome, Basal Cell Nevus Syndrome (BCNS), and Nevoid Basal Cell Carcinoma Syndrome (NBCCS).