Absci Corporation Unveils Promising Data on ABS-201™ for Hair Growth
On December 11, 2025, Absci Corporation (NASDAQ: ABSI), a leader in biopharmaceutical innovation leveraging generative AI, announced groundbreaking preclinical data for its anti-prolactin receptor antibody, ABS-201™. The findings, revealed at the ABS-201 Key Opinion Leader (KOL) seminar today, highlight the antibody's potential to stimulate hair growth by restoring the hair follicle stem cell niche and addressing androgenetic alopecia (AGA).
Innovative Mechanism of Action for ABS-201™
The study, conducted using human ex vivo scalp models, demonstrates that ABS-201™ can reverse follicular miniaturization. It achieves this by extending the anagen phase (active growth) of hair follicle cycles and stimulating keratin synthesis, which are critical for combating hair loss.
“Today’s standard treatment options for AGA often overlook the hormonal influences on hair loss, especially the role of prolactin,” stated Professor Ralf Paus, a leading researcher at the University of Miami Miller School of Medicine. He emphasized that inhibiting prolactin signaling with ABS-201™ could revolutionize future management options for AGA.
Key Findings and Implications
The preclinical trials involving full-thickness human scalp skin obtained from male donors revealed significant results:
- Prolongation of Anagen Phase: ABS-201™ effectively inhibits the transition to the catagen phase, thereby promoting growth signaling via increased keratinocyte proliferation.
- Stem Cell Niche Preservation: The antibody protects K15+ stem cells from prolactin-induced apoptosis, resulting in an expanded progenitor cell pool, which is essential for healthy hair growth.
- Follicle Reconversion: ABS-201™ facilitates the reconversion of miniaturized (vellus) hair follicles to larger terminal follicles, suggesting a novel disease-modifying mechanism.
- Effectiveness in Endogenous Settings: The compound shows growth-promoting capabilities even in the absence of exogenous prolactin, indicating broad applicability.
Comparison with Existing Treatments for AGA
Currently, about 80 million Americans suffer from androgenetic alopecia, with limited treatment options available such as minoxidil and finasteride, both of which exhibit modest efficacy and notable side effects. ABS-201™ represents a novel therapeutic pathway targeting prolactin receptors to enhance hair follicle regeneration.
In preclinical studies, ABS-201™ demonstrated statistically significant superior hair regrowth compared to minoxidil, showcasing its potential as a preferable alternative. With interim data from its Phase 1/2a HEADLINETM study expected in the second half of 2026, ABSI is poised to redefine treatment possibilities in this space.
About Absci Corporation
Absci is at the forefront of drug discovery, utilizing generative design to develop advanced biologics more efficiently. With a commitment to innovation, the company’s Integrated Drug Creation™ platform streamlines the process from concept to clinical application, aiming to address previously untreatable conditions and improve patient outcomes.
In addition to ABS-201™, Absci is actively researching other therapeutics, including potential treatments for endometriosis. Headquarters are located in Vancouver, WA, with operational facilities in New York City and Switzerland.
Forward-Looking Statements
Statements in this release that are not historical facts are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These statements involve risks and uncertainties, and actual results may differ materially from those expressed or implied.