Abbott initiates trial focusing on twin AF and heart failure treatments

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Abbott has announced a new trial focused on improving the treatment for people simultaneously battling both atrial fibrillation (AF) and heart failure.

The TAP-CHF trial (Evaluating the Treatment of Atrial Fibrillation in Preserved Cardiac Function Heart Failure) aims to discover better management options for patients with AF and heart failure with preserved ejection fraction (HFpEF). Combined, these conditions can be very difficult for doctors to control as they put increased pressure on the pulmonary arteries, which provide blood flow from the heart to the lungs.

“Cardiovascular patients often have more than one heart condition. We believe that we can best help those patients live longer and better lives by providing their doctors improved therapy approaches that address the entirety of their heart disease,” said Philip Adamson, chief medical officer for Abbott’s heart failure business. “Trials that look at complex heart conditions together promise to offer new insights and will make a tremendous difference in the outcomes of our patients now and into the future.”

The TAP-CHF trial will manage patients in two phases to better help physicians understand the impact of monitoring fluctuations in pulmonary pressure.

In the first phase, physicians will deploy either cardiac ablation or medication to control erratic heart rhythms in AF patients with a history of heart failure.

Following treatment for AF, all patients will receive the Abbott Confirm Rx insertable cardiac monitor to help physicians monitor for recurrent abnormal heart rhythms.

In the second phase, physicians will randomise patients to receive typical clinical management for heart failure based on symptom changes or to heart failure management guided by data from Abbott’s CardioMEMS HF System, a pulmonary pressure sensor that can provide doctors with an early warning of worsening heart failure.

Abbott expects the TAP-CHF trial to enroll up to 100 patients at 10 trial sites in the USA. At the end of the trial, outcomes of patients who had their heart failure management guided by data from the CardioMEMS HF System will be compared to those who received standard of care (medicine) for their heart failure to determine which patient group had better outcomes based on recurrence of AFib, hospitalisation or death. The trial will also provide insights into the effect of catheter ablation in patients with HFpEF.

“Heart failure in patients with preserved ejection fraction is a major unsolved public health challenge worldwide, with few effective avenues of treatment. This is compounded by the fact that AF affects nearly half of these patients, increasing the risk of mortality and increased hospitalisation,” said Sanjeev Saksena, principal investigator of the TAP-CHF trial, clinical professor of medicine at the Rutgers’ Robert Wood Johnson Medical School, New Brunswick, USA and medical director at the Electrophysiology Research Foundation. “In partnership with innovation leaders such as Abbott, we’ve made significant progress in how we treat patients battling A, and we’ve also made progress in how we manage heart failure. But to continue to treat people more effectively who are facing both conditions, we need innovative treatment strategies, fresh insights and confirmation of new therapeutic approaches.”

The TAP-CHF trial is an investigator-initiated phase 4, sequential, randomised, open label and multicentre prospective comparative study to address the major health challenge presented by HFpEF and AF. The trial is administered by the Electrophysiology Research Foundation and involves worldwide leaders in deploying innovative therapies for both conditions.


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