News | Cardiovascular Clinical Studies | November 25, 2024

BridgeBio Pharma Receive FDA Nod for Attruby

Attruby is the first approved product with a label specifying near-complete stabilization of TTR. It has been shown to preserve the native function of TTR as a transport protein of thyroxine and vitamin A and to demonstrate benefit on cardiovascular outcomes.


Nov. 22, 2024 — BridgeBio Pharma, Inc. recently announced that the U.S. Food and Drug Administration (FDA) approved Attruby (acoramidis), an orally-administered near-complete (≥90%) stabilizer of Transthyretin (TTR) for the treatment of adults with ATTR-CM to reduce cardiovascular death and cardiovascular-related hospitalization.

The FDA approval is based on positive results seen in the ATTRibute-CM Phase 3 study, where Attruby significantly reduced death and cardiovascular-related hospitalization, and improved quality of life.

“The need for more treatment options for patients living with ATTR-CM is crucial to achieving the goal of better outcomes and improved quality of life. Access to this new therapy means more hope and more opportunity to improve the lives of patients with amyloidosis,” said Muriel Finkel, president of Amyloidosis Support Groups, a non-profit organization dedicated to the support of amyloidosis patients and caregivers.

Attruby is the first approved product with a label specifying near-complete stabilization of TTR. Attruby was designed to mimic a naturally occurring "rescue mutation” of the TTR gene (T119M) that targets the root cause of ATTR-CM, destabilization of the native TTR tetramer. Through near-complete TTR stabilization, Attruby has been shown to preserve the native function of TTR as a transport protein of thyroxine and vitamin A and to demonstrate benefit on cardiovascular outcomes.

The ATTRibute-CM Phase 3 study enrolled 632 participants with symptomatic ATTR-CM, associated with either wild-type or variant TTR. Participants were randomized 2:1 to receive Attruby or placebo for 30 months. As published in The New England Journal of Medicine, the trial successfully met its primary endpoint of a 4-component composite endpoint of ACM, CVH, N-terminal prohormone of brain natriuretic peptide (NT-proBNP), and 6-minute walk distance with a Win Ratio of 1.8 (p<0.0001). Attruby demonstrated a statistically significant treatment effect at 30 months on the Kansas City Cardiomyopathy Questionnaire and 6-minute walk test. Additionally, the increase in NT-proBNP on treatment was about half that of placebo.

"Transthyretin cardiac amyloidosis is a progressive disease with a poor prognosis when left untreated. Having a new first line treatment option which provides excellent TTR stabilization and improves outcomes in this disease gives patients more options,” said Martha Grogan, M.D., of the Mayo Clinic. “Encouraging data suggests Attruby reduces all-cause mortality and cardiovascular hospitalization as early as three months after initiation of therapy. With continued advances in therapy, this previously fatal disease is becoming a manageable chronic cardiovascular condition."

For more information visit bridgebio.com.


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