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Foghorn Therapeutics Provides an Update on FHD-609 CAMBRIDGE, Mass.--(GLOBE NEWSWIRE)

Key Takeaway: Foghorn Therapeutics has provided an update on its FHD-609 program, which is focused on treating synovial sarcoma and SMARCB1-deleted tumors. The company has paused enrollment in the study after a serious adverse event, specifically a grade 4 QTc prolongation in a patient at the second highest dose. While the FDA has placed the study on partial clinical hold, patients currently benefiting from the treatment have been allowed to continue their dosing. Foghorn will not pursue a dose expansion study at this time.

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POSITIVE FACTORS

  • Enrollment of the dose escalation portion of the study has been completed.
  • A maximum tolerated dose has been identified.
  • Patients currently benefiting from therapy can continue dosing.

CONCERNS & RISKS

  • Enrollment has been paused due to a grade 4 QTc prolongation event.
  • The FDA placed the study on partial clinical hold in the United States.
  • There are risks associated with the ongoing clinical trials.

Full Press Release Details

Foghorn Therapeutics Provides an Update on FHD-609
CAMBRIDGE, Mass.--(GLOBE NEWSWIRE)--April 24, 2023--Foghorn Therapeutics Inc. (Nasdaq FHTX), a clinical-stage biotechnology company pioneering a new class of medicines that treat serious diseases by correcting abnormal gene expression, today announced an update 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. Patients in the affected cohort were dose reduced and additional safety measures have been discussed with and provided to the study investigators. The Company promptly communicated the enrollment pause and risk mitigation actions to the FDA and European regulatory authorities. Consequently, the FDA placed the study on partial clinical hold in the United States, while allowing patients currently enrolled and benefiting from therapy to continue dosing and to remain on FHD-609. The Company is not at this time planning to pursue a dose expansion study independently.
About Foghorn Therapeutics
Forward-Looking Statements
This press release contains "forward-looking statements" regarding the Company's clinical program for FHD-609. Forward-looking statements include statements regarding the Company's clinical trials, product candidates and research efforts and other statements identified by words such as "could," "may," "might," "will," "likely," "anticipates," "intends," "plans," "seeks," "believes," "estimates," "expects," "continues," "projects" and similar references to future periods. Forward-looking statements are based on our current expectations and assumptions regarding capital market conditions, our business, the economy and other future conditions. Because forward-looking statements relate to the future, by their nature, they are subject to inherent uncertainties, risks and changes in circumstances that are difficult to predict. As a result, actual results may differ materially from those contemplated by the forward-looking statements. Important factors that could cause actual results to differ materially from those in the forward-looking statements include regional, national or global political, economic, business, competitive, market and regulatory conditions, including risks relating to our clinical trials and other factors set forth under the heading "Risk Factors" in the Company's Annual Report on Form 10-K for the year ended December 31, 2022, as filed with the Securities and Exchange Commission. Any forward-looking statement made in this press release speaks only as of the date on which it is made.
Ben Strain, Foghorn Therapeutics Inc. (Media and Investors)
bstrain foghorntx.com
Karin Hellsvik, Foghorn Therapeutics Inc. (Media)
khellsvik foghorntx.com
Michael Lampe, ScientPR (Media)
michael scientpr.com
Hans Vitzthum, LifeSci Advisors (Investors)
hans lifesciadvisors.com

Frequently Asked Questions

What is the latest update on FHD-609?

Foghorn Therapeutics has paused enrollment in the FHD-609 study due to a grade 4 QTc prolongation event.

Why has enrollment in FHD-609 been paused?

Enrollment is paused because of a serious adverse event in a patient at a high dose.

What measures are taken after the QTc event?

Patients in the affected group have had their doses reduced, and additional safety measures are implemented.

Is the FHD-609 study on clinical hold now?

Yes, the FDA has placed the study on partial clinical hold but allows current patients to continue therapy.

Is Foghorn planning a dose expansion study for FHD-609?

Currently, Foghorn is not planning to pursue a dose expansion study independently.

Last updated: Apr 24, 2023