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BBIOBullishCorporate Developmentsnews

High materiality7/10

BridgeBio's infigratinib: favorable PROPEL signals and 2027 FDA launch milestone

Sep 9, 2026, 4:03 AM EDT1 sourcesAI-analyzed

Why it may matterVerify against the original reporting

Positive exploratory data in PROPEL 3 and a concrete regulatory path (FDA NDA mid-2027; EMA later) provide tangible catalysts. Even though endpoints are exploratory, the potential to become first/best-in-class oral therapy for achondroplasia supports upside; risk remains until primary endpoints are confirmed.

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What happened, with direct paths to the underlying reporting

BridgeBio presented exploratory PROPEL 3 analyses for oral infigratinib in achondroplasia, showing stabilization of sleep apnea (AHI), reduced otitis media, and favorable body composition over up to three years. The company has filed an NDA with the FDA and targets a mid-2027 U.S. launch, with an EMA Marketing Authorization Application planned for 2H2026. Positive signals could unlock regulatory upside though primary endpoints remain pivotal.

PROPEL 3: AHI stabilized at 52 weeks; 10.4% rise vs 49.2% placebo.
Otitis media events lower with oral infigratinib; 38% overall, 47% under 8.
Three-year PROPEL data show sustained growth and body proportionality improvements.
NDA filed with FDA; U.S. launch expected mid-2027; EMA MAA planned 2026.

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