Clinical Trials

Haduvio™ – The First and Only Oral Therapy to Achieve Primary Endpoint in Treating Chronic Cough in IPF

We are currently developing Haduvio™ (oral nalbuphine ER) for the treatment of serious chronic cough conditions. We completed a Phase 2 Trial for adults with chronic cough in idiopathic pulmonary fibrosis and are planning further development in IPF, as well as future development in refractory chronic cough.


of IPF Patients Experience Chronic Cough

Phase 2 Cough And NALbuphine (CANAL) Trial

Topline data from the full set of subjects (N=38) in the Phase 2 CANAL trial for adults with chronic cough in IPF showed a 75.1% reduction in daytime cough frequency for those on Haduvio.

We also measured cough reduction over a 24-hour period and the data also demonstrated a significant reduction in cough similar to the daytime measurement.

The strength of the CANAL data was also analyzed by the percentage of subjects that experienced a 30%, 50%, and 75% reduction in their 24-hour cough frequency.  A 20-30% reduction in cough frequency is considered to be clinically meaningful and 97% of Haduvio subjects saw at least a 30% reduction in 24-hour cough frequency.

The safety results of the trial were generally consistent with the known safety profile of Haduvio from previous trials. Adverse events most commonly observed during the trial were nausea, fatigue, constipation, dizziness, somnolence, vomiting, headache, anxiety and depression.

Future Clinical Trials

Based on the strength and consistency of these results, we are planning another clinical trial for Haduvio for the reduction of chronic cough in IPF patients and expect to begin the next clinical trial in the first half of 2023.

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