Palvella Therapeutics Secures FDA Fast Track Designation for QTORIN™ Rapamycin in the Treatment of Angiokeratomas
WAYNE, Pa., December 16, 2025 – Palvella Therapeutics, Inc. (Nasdaq: PVLA), a biopharmaceutical company committed to developing innovative therapies for rare skin diseases, has received Fast Track Designation from the U.S. Food and Drug Administration (FDA) for its product QTORIN™ 3.9% rapamycin anhydrous gel. This designation targets the treatment of angiokeratomas, a condition that currently has no FDA-approved therapies.
Understanding Angiokeratomas and Their Impact
Angiokeratomas are lymphatic-derived skin lesions that can lead to persistent bleeding, chronic pain, and reduced quality of life for those affected. The U.S. is home to over 50,000 diagnosed patients, highlighting a significant unmet medical need. According to Wes Kaupinen, Founder and CEO of Palvella, “Angiokeratomas are chronic, often debilitating lesions with no FDA-approved therapies. This Fast Track designation underscores the potential of QTORIN™ rapamycin to address this significant unmet need and supports our opportunity to advance what could become the first FDA-approved therapy for these patients.”
Details of the Fast Track Designation
The FDA's Fast Track program is designed to accelerate the development and review process for drugs that treat serious conditions. This designation allows Palvella to have enhanced communication with the FDA, facilitating quicker resolution of questions and issues that may arise during development.
- QTORIN™ rapamycin may qualify for Accelerated Approval and Priority Review upon meeting applicable criteria.
- Fast Track status aims to expedite patient access to important new therapies.
Future Development Plans for QTORIN™ Rapamycin
Palvella plans to initiate a Phase 2 clinical trial in the second half of 2026 to evaluate QTORIN™ rapamycin specifically for clinically significant angiokeratomas. This trial will likely involve 10-20 patients and will be designed to assess the drug’s safety and efficacy.
About Palvella Therapeutics
Founded and led by veterans in rare disease drug development, Palvella Therapeutics, Inc. (Nasdaq: PVLA) is dedicated to creating and commercializing therapies for rare skin diseases that lack FDA-approved treatments. The company's lead product candidate, QTORIN™ rapamycin, aims to treat various conditions, including microcystic lymphatic malformations and cutaneous venous malformations.
Palvella is also developing a second product, QTORIN™ pitavastatin, for the treatment of disseminated superficial actinic porokeratosis. For more details, please visit www.palvellatx.com or follow Palvella on social media platforms.
Forward-Looking Statements
This announcement contains forward-looking statements regarding Palvella's goals, development plans, and anticipated regulatory milestones, which are based on current beliefs and subject to risks and uncertainties. Actual results may differ materially from those projected in these statements.