100% of patients with bleeding at baseline demonstrated a statistically significant improvement on the Cutaneous Venous Malformations Investigator Global Assessment Bleeding scale (cVM-IGA Bleeding) at Week 12 (+2.5 point improvement; p=0.003)

100% of patients with bleeding at baseline reported being "satisfied" or "very satisfied" with QTORIN™ rapamycin on the overall satisfaction item of the Treatment Satisfaction Questionnaire for Medication at Week 12

Baseline qualitative patient interviews underscore the substantial physical, functional, and psychosocial burden of cutaneous venous malformations

QTORIN™ rapamycin has the potential to become the first FDA-approved therapy and standard of care for the estimated more than 75,000 individuals with cutaneous venous malformations in the U.S.

WAYNE, Pa., May 15, 2026 (GLOBE NEWSWIRE) -- Palvella Therapeutics, Inc. (Palvella or "the Company") (NASDAQ:PVLA), a clinical-stage biopharmaceutical company focused on developing and commercializing novel therapies to treat patients suffering from serious, rare skin diseases and vascular malformations for which there are no U.S. Food and Drug Administration (FDA)-approved therapies, today announced new data from the Phase 2 TOIVA trial of QTORIN™ rapamycin in patients with cutaneous venous malformations (VMs) were presented at the 83rd Annual Meeting of the Society for Investigative Dermatology (SID) in Chicago, IL.