American College of Clinical Pharmacology Twenty-Second Annual Meeting November 1–3, 1993 Boston, Massachusetts

PP405's phase 2a trial results were presented, focusing on safety and pharmacokinetics, with a future meeting planned to share the full dataset. The trial includes a randomized controlled portion and an open-label extension, with no indication of phase 2B completion.

The trial for TDM-105795 has been completed, and it was in phase 2A. The discussion seeks input on the next phases, 2B or 3, based on safety and efficacy.

The conversation discusses the delay in the PP405 Phase 2 study results, now expected by the end of 2025, and skepticism about research practices. There is also mention of optimism for Amplifica's AMP303 and a topical treatment in early testing.

12 companies having drugs or therapies in clinical trials during 2023, with various molecules and phases of trial; the probability that some may fail; and progress being made in the field.

Pelage Pharmaceuticals' PP405 aims to treat hair loss by reactivating dormant hair follicle stem cells, showing promising results in early trials. The company plans to present their findings at the American Academy of Dermatology Annual Meeting in 2026.

The conversation discusses the safety study of PP405, emphasizing that early trials focus on safety rather than efficacy, and that any efficacy data from such a short study should be viewed skeptically. It also highlights that the information released is primarily for securing funding, and that meaningful efficacy results are expected in later phases.