FDA slaps partial hold on Foghorn's FHD-609 trial

25 April 2023

Foghorn Therapeutics’ (Nasdaq: FHTX) shares slid as much as 21% in pre-market activity on Monday, and closed down 7.9% at $6.19, after the US cancer-focused biotech announced a setback on the FHD-609 program in synovial sarcoma and SMARCB1-deleted tumors.

Foghorn is pausing enrollment in the FHD-609 study in synovial sarcoma and SMARCB1-deleted tumors due to a grade 4 QTc prolongation event in a synovial sarcoma patient at the second highest dose.

Enrollment of the dose escalation portion of the study has been completed and a maximum tolerated dose has been identified.

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