Tag: mavacamten

Is Aficamten the Blockbuster Drug Cytokinetics is Hoping For?

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Cytokinetics today released positive results from Sequoia-HCM, its Phase 3 clinical trial of the experimental drug aficamten in patients with symptomatic obstructive hypertrophic cardiomyopathy (HCM).  Patients treated with aficamten showed significantly increased exercise capacity as demonstrated by a 1.74 point increase in peak oxygen uptake (pVO2) measured during cardiopulmonary exercise testing.  Improvements were also seen in provoked outflow tract gradients, and most importantly, patients felt better.  

The study had enrollment of approximately 300 patients who were followed for 24 weeks. 

Aficamten was well-tolerated, adverse events were comparable to those taking a placebo, and importantly, there were no instances of worsening heart failure or treatment interruptions due to low left ventricular ejection fraction (LVEF).

According to an article in Med City News, the drug may have an advantage over the Bristol Myers Squibb drug mavacamten (sold under the brand name Camzyos) because there were no reports of worsening heart failure. In the Phase 3 EXPLORER trial of mavacamten, seven patients in the treatment group experienced reductions to their LVEF.  

Based on the projected success of aficamten, Cytokinetics stock price jumped by 83% and the company is said to be the subject of takeover interest from AstraZeneca and Novartis.

Cytokinetics plans to apply for FDA approval for the drug in the second half of 2024.

Complete results from SEQUOIA-HCM will be presented at an upcoming medical conference.

You can read more about the drug in these previous articles on HCMBeat:

Cytokinetics Teases Upcoming Phase 3 Aficamten Trial in nHCM

Promising Data about Aficamten Presented at Meetings

Aficamten Updates from Cytokinetics

More on Aficamten & Mavacamten from ACC 2022

Aficamten Gets “Breakthrough Drug” Status from FDA

Cytokinetic’s Drug Aficamten & Upcoming HCM Summit – Interview with Dr. Martin Maron

Results Published from REDWOOD-HCM Phase 2 Trial

The Future of HCM Treatment

 

 

 

 

 

 

Mavacamten (Brand Name Camzyos) Approved in Europe

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Bristol Myers Squibb’s first-in-class myosin modulator mavacamten (brand name Camzyos) has been approved by the European Commission for the treatment of obstructive hypertrophic cardiomyopathy in all countries which are part of the European Union.

See the press release here.

Septal Reduction – Not a One Size Fits All

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A recent article published in the European Journal of Cardiology Heart Failure compares septal myectomy to septal alcohol ablation. The paper goes through specific factors which make one procedure or the other more appropriate: individual anatomy and age being two .of the most important.

The article emphasizes that proper patient selection for either procedure is key.  Further, it emphasizes the necessity of having both procedures done at at high volume center in order to increase the odds of a successful procedure.

Mavacamten Approved in Canada

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Bristol Myers Squibb’s first in class drug  mavacamten (brand name Camzyos) has been approved by Health Canada for the treatment of obstructive hypertrophic cardiomyopathy.

Longer Term Results for Mavacamten

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The VALOR-HCM trial  was a Phase 3 clinical trial which compared the Bristol Myers Squibb drug mavacamten (brand name Camzyos) to septal reduction therapy (myectomy and septal alcohol ablation) over a 16 week period.  At the end of the 16 week period, the patients originally randomized to the placebo were prescribed mavacamten, while those originally prescribed mavacamten continued taking the drug for an additional 16 weeks for a total of 32 weeks

At last weekend’s American Heart Association meeting in Chicago and simultaneously published in Circulation, lead investigator Dr. Milind Desai of the Cleveland Clinic announced that after 32 weeks of mavacamten treatment, patients continued to see positive cardiac remodeling, as well as improvement to left ventricular outflow tract gradient, diastolic function and quality of life. This ultimately allowed a whopping 88% of patients enrolled in the trial to avoid a septal reduction procedure. 

Similar results were noted in those patients who began mavacamten after an initial 16 weeks on a placebo.

This is good news for HCM patients!

The Future of HCM Treatment

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Doctors from the University of Pennsylvania this week published an overview of current therapies available for the treatment of HCM.  While this article mentions all of the old standards – beta blockers, calcium channel blockers, myectomy and alcohol ablation, the real focus is on the future of HCM treatment. In particular, the article describes several new and/or experimental therapies which look promising for the future.

Continue reading “The Future of HCM Treatment” →

Mavacamten vs. Septal Reduction – VALOR-HCM Trial Results Published

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The VALOR-HCM trial results have just been published in the Journal of the American College of Cardiology. 

This study enrolled 112 obstructive HCM patients for a 16 week double blind trial of the drug mavacamten (brand name Camzyos). All patients in the trial had been referred for septal reduction therapy – either septal myectomy or septal alcohol ablation – to treat their highly symptomatic obstructive hypertrophic cardiomyopathy.   The researchers looked at whether the addition of mavacamten to their other drugs would improve their symptoms enough so that they no longer met the criteria for septal reduction therapy (SRT) under the 2011 ACC/AHA Guidelines.

You can read many more details about the VALOR-HCM study here in this recent blog post on HCMBeat.

Continue reading “Mavacamten vs. Septal Reduction – VALOR-HCM Trial Results Published” →

FDA Approves Mavacamten under Brand Name Camzyos

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At long last, there is a FDA approved drug specifically intended for the treatment of hypertrophic cardiomyopathy.  After several years of testing, and based on the results of the groundbreaking EXPLORER-HCM trial, Bristol Myers Squibb’s new drug mavacamten, being marketed under the brand name Camzyos, is now available to HCM patients.

Continue reading “FDA Approves Mavacamten under Brand Name Camzyos” →

More on Aficamten & Mavacamten from ACC 2022

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In addition to the presentation of the results of the VALOR-HCM study which compared mavacamten to septal reduction techniques, covered here in its own HCMBeat blog entry, ACC 2022 featured two other presentations about the new class of drugs known as myosin inhibitors, such as Bristol Myers Squibb’s mavacamten and Cytokinetics’ aficamten.

Continue reading “More on Aficamten & Mavacamten from ACC 2022” →

VALOR-HCM Trial – Mavacamten vs. Septal Reduction Therapy – RESULTS ARE IN!

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The Phase 3 VALOR-HCM trial results were presented this morning at the American College of Cardiology annual meeting in Washington, DC by the principal investigator, Dr. Milind Desai of the Cleveland Clinic, and the results are good!

What was the VALOR-HCM study?

15 – 20  million people worldwide are estimated to have HCM, with 2/3 of this group having the obstructive form which can cause severe symptoms. Historically, these patients have been treated with medications approved for other conditions, and if those don’t relieve symptoms, they are referred on for septal reduction therapies (SRT) like alcohol septal ablation (a catheter based procedure) or septal myectomy (open heart surgery), which are invasive therapies requiring specialized care and which are not widely available.

The VALOR study was designed to compare mavacamten head to head with SRT to see if mavacamten could be a non-invasive treatment alternative for obstructive HCM.

Continue reading “VALOR-HCM Trial – Mavacamten vs. Septal Reduction Therapy – RESULTS ARE IN!” →