DUBLIN, Ireland — Theravance Biopharma Inc. today announced results from the Phase 4 PIFR-2 study of YUPELRI® (revefenacin) inhalation solution, the only once-daily, nebulized long-acting muscarinic antagonist (LAMA) approved in the U.S. for maintenance treatment of COPD.
The PIFR-2 study aimed to demonstrate greater improvement in lung function for YUPELRI delivered via standard jet nebulizer compared to Spiriva® (tiotropium) delivered via a dry powder inhaler (Spiriva® HandiHaler®) in adults with severe to very severe COPD and suboptimal peak inspiratory flow rate (PIFR).
- The study did not show a statistically significant difference between YUPELRI and Spiriva HandiHaler on the primary endpoint, change from baseline in trough forced expiratory volume in one second (FEV1) at Day 85.
- Similar lung function improvement was demonstrated in both arms of the study.
- YUPELRI demonstrated safety and tolerability consistent with its profile in previous clinical studies.
Chief Executive Officer Rick E Winningham said: “While the primary endpoint in the Phase 4 PIFR-2 study was not met, YUPELRI demonstrated an efficacy and safety profile consistent with its performance in other clinical studies. We appreciate the growth opportunities that lie ahead for YUPELRI, which is an important option for COPD maintenance care, and look forward to sharing additional details from PIFR-2 in the future, following additional data analyses.”
About the PIFR-2 Study
The Phase 4 PIFR-2 Study (NCT05165485) is a randomized, double-blind, parallel-group study, comparing improvements in lung function in adults with severe to very severe COPD (FEV1 <50% of predicted) and suboptimal PIFR (<55 L/min) following once-daily treatment over 12 weeks with either YUPELRI (revefenacin) inhalation solution delivered via standard jet nebulizer or Spiriva (tiotropium) delivered via a dry powder inhaler (Spiriva HandiHaler). YUPELRI is approved in the U.S. for the maintenance treatment of patients with COPD; Spiriva HandiHaler is approved in the U.S. for the long-term, once-daily, maintenance treatment of bronchospasm associated with COPD, and for reducing COPD exacerbations.
About YUPELRI®
YUPELRI® (revefenacin) inhalation solution is a once-daily nebulized long-acting muscarinic antagonist (LAMA) approved for the maintenance treatment of COPD in the U.S. LAMAs are recognized by international COPD treatment guidelines as a cornerstone of maintenance therapy for COPD, regardless of severity of disease. Our market research indicates there is an enduring population of COPD patients in the U.S. that either need or prefer nebulized delivery for maintenance therapy. The stability of revefenacin in both metered dose inhaler and dry powder inhaler (“MDI/DPI”) formulations suggests that revefenacin could also serve as a foundation for novel handheld combination products.
About Theravance Biopharma
Theravance Biopharma, Inc.’s focus is to deliver Medicines that Make a Difference® in people’s lives. In pursuit of its purpose, Theravance Biopharma leverages decades of expertise, which has led to the development of FDA-approved YUPELRI® (revefenacin) inhalation solution indicated for the maintenance treatment of patients with chronic obstructive pulmonary disease (COPD). Ampreloxetine, its late-stage investigational norepinephrine reuptake inhibitor in development for symptomatic neurogenic orthostatic hypotension, has the potential to be a first in class therapy effective in treating a constellation of cardinal symptoms in multiple system atrophy patients. The Company is committed to creating/driving shareholder value
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