Sanofi and Regeneron's dupilumab meets all primary and secondary endpoints Phase IIa study

1 October 2014

French drug major Sanofi (Euronext: SAN) and US biotech company Regeneron's (Nasdaq: REGN) dupilumab has met all primary and secondary endpoints in their Phase IIa proof-of-concept study of the drug.

Dupilumab is an investigational therapy that blocks interleukin (IL)-4 and IL-13 signaling in patients with moderate-to-severe chronic sinusitis with nasal polyps who did not respond to intranasal corticosteroids.

The study showed dupilumab gave a statistically-significant improvement in the size of nasal polyps as measured by endoscopic nasal polyp score, which was the primary endpoint. Secondary endpoints which were objective measures of sinusitis by CT scan, nasal air flow and patient-reported symptoms all sustained statistically significant improvements.

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