Deupirfenidone Shows Significant Efficacy in Idiopathic Pulmonary Fibrosis
Written by Emily J. Thompson, Senior Investment Analyst
Updated: Apr 02 2026
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Source: Newsfilter
- Significant Efficacy: In a 26-week clinical trial, deupirfenidone 825 mg TID monotherapy significantly slowed lung function decline in patients with idiopathic pulmonary fibrosis, with an adjusted mean FVC difference of 91 mL (p=0.02), approaching the lung function changes expected in healthy aging, indicating its potential in treatment.
- Standard Treatment Comparison: This trial is the first industry-sponsored IPF trial to include a current standard-of-care treatment as an active comparator, enhancing the interpretability of efficacy and safety findings and laying a solid foundation for the upcoming Phase 3 SURPASS-IPF trial.
- Financing Plans: PureTech's subsidiary, Celea Therapeutics, is working to complete financing to initiate the Phase 3 SURPASS-IPF trial in the first half of 2026, aiming to further validate the efficacy of deupirfenidone and push it towards becoming a new standard of care.
- Drug Exposure and Tolerability: Deupirfenidone 825 mg TID showed approximately 50% greater drug exposure compared to pirfenidone 801 mg TID, yet the incidence of adverse events was similar (85.9% vs 84.1%), demonstrating its ability to enhance efficacy while maintaining good tolerability.
About the author
Emily J. Thompson
Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.
