Involvement of RIPK1 in Alopecia Areata

Ritlecitinib and PP405 show promise for hair regrowth. Diagnosing the cause of hair loss is crucial before treatment.

RU58841, an anti-androgenic compound, showed early promise for treating alopecia but faced challenges after its patent in 1997. Despite advancing to Phase II trials, safety concerns and financial struggles led Aventis to abandon its development. Proskelia, which later merged into ProStrakan, couldn't prioritize the drug, leading to its eventual stagnation and failure to reach the market.

PP405 is a potential hair loss treatment undergoing trials, with discussions on its effectiveness and comparison to existing treatments like finasteride and minoxidil. There is skepticism about its status as a cure, with hopes for future advancements in genetic treatments like CRISPR.

Rapamycin, finasteride, and minoxidil are discussed as a strategy for hair loss prevention and reversal. Pulsed dosing of rapamycin is suggested to avoid conflicting effects with minoxidil.

Exploring a potential hair loss treatment using the enzyme AKR1C2 to locally reduce DHT levels. Challenges include enzyme delivery through the skin and high production costs, with gene therapy or stem cells suggested as future alternatives.

The conversation discusses hair regrowth using dissolvable microneedles loaded with rapamycin and epigallocatechin gallate nanoparticles. Specific treatments mentioned include Minoxidil, finasteride, and RU58841.