PP405 for Hair Loss

We are leveraging decades of stem cell biology and metabolism research to develop a new way to treat hair loss. PP405 is the first treatment designed specifically for hair loss.

The Pelage solution

A novel, non-invasive, topical small molecule drug platform that activates stem cells in the hair follicles directly to stimulate robust hair growth. By targeting an intrinsic metabolic switch in hair follicles, Pelage’s platform restores the hair follicle’s natural ability to grow hair.

How our drug works:

Hair follicles naturally cycle through
periods of rest and growth.
This process is governed by hair
follicle stem cells.

Over time, due to age, genetics, stress, hormones, and other factors, hair follicle stem cells can become "stuck" and unable to activate a new hair follicle growth cycle.

PP405 activates dormant hair follicle stem cells, restoring the natural regenerative capacity of the follicle and activating new hair growth in previously bald areas.

Selected Publications and Presentations

  1. American Academy of Dermatology 2024 Annual Meeting. Inhibition of pyruvate oxidation activates human hair follicle stem cells ex vivo.
  2. Experimental Dermatology. Inhibition of pyruvate oxidation as a versatile stimulator of the hair cycle in models of alopecia
  3. Nature Cell Biology. Lactate dehydrogenase activity drives hair follicle stem cell activation

PP405 - the first treatment
designed specifically for hair loss

Androgenetic Alopecia

Also known as pattern hair loss, the most common type of hair loss in men and women. Caused by a combination of genetics, hormones, age, and environmental factors.

Drug-induced Alopecia

Hair loss caused by certain medications—most notably chemotherapy drugs used in cancer treatment.

Telogen Effluvium

Hair loss due to stressors such as illness, childbirth, menopause, and weight loss.

PP405 Clinical Trials

Interested in our clinical trials? We’d love to keep you informed about upcoming studies. Register your interest and, as information becomes available, our team will reach out to share details about upcoming studies, eligibility, and how you may be able to take part.

Our Phase 2a study (NCT06393) for men and women with androgenetic alopecia met its primary safety endpoint. Learn more: Pelage Pharmaceuticals Announces Positive Phase 2a Clinical Trial Results for PP405 in Regenerative Hair Loss Therapy