Clinical trial No longer in our active list Observational Ages 60 to 80

Understanding skeletal muscle changes in heart failure patients

Official title: Changes in Skeletal Muscle Over Time in Severe Heart Failure

Run by Karolinska Institutet · NCT03401151 · Data updated 2026-05-14

This study is no longer in our active list. It may have stopped recruiting or finished. The details below are as of 2026-05-14 and are kept for reference. Check ClinicalTrials.gov for its current status, or see similar studies below.

This study is trying to see how changes in muscle strength affect the physical abilities of older adults with severe heart failure.

Quick facts

Study typeObservational
Ages60 Years to 80 Years
SexAll
Enrollment100 (estimated)
SponsorKarolinska Institutet
Academic / other
Locations1 site (Stockholm, Stockholms Län)
Trial IDNCT03401151 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are individuals aged 60-80 years with chronic heart failure and a left ventricular ejection fraction of 35% or less.

Probably not a fit

Patients with severe chronic obstructive pulmonary disease or those requiring end-of-life care may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to explore the relationship between skeletal muscle changes and physical performance in patients suffering from heart failure. It will involve enrolling 100 patients aged 60-80 years with severe heart failure (NYHA III-IV) and monitoring them over a period of 12-16 months. The study will assess how changes in muscle function correlate with cardiac function and overall prognosis, while also examining metabolic signatures in blood and satellite cells. The research is being conducted at Karolinska University Hospital in Sweden.

Why it matters

Potential benefit: If successful, this study could lead to improved prognostic factors and therapeutic options for patients with heart failure.

How similar studies have gone: While the study addresses a critical area of heart failure research, similar studies have shown varying degrees of success in understanding muscle dysfunction in this context.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion criteria:

* Signed informed consent
* 60-80 years old upon inclusion
* Chronic heart failure ≥ 45 days.
* Left ventricular ejection fraction ≤ 35%.
* NYHA III-IV
* Receiving medical management with optimal doses of betablockers, acetylcholinesterase (ACE)-inhibitors or angiotensin II receptor blockers (ARB), and mineral receptor antagonists (MRA) for at least 30 days if tolerated.

Exclusion criteria:

* Interagency Registry for Mechanically Assisted Circulatory Support (INTERMACS) profile 1 "crash and burn"
* On-going mechanical circulatory support.
* Severe chronic obstructive pulmonary disease (COPD) or severe restrictive lung disease.
* Psychiatric disease, cognitive dysfunction, alcohol or drug abuse, or psychosocial issues that are likely to impair study compliance
* Condition, other than heart failure, requiring end-of-life care within \<6 months in time or where the risk of death within \<2 years is considered to be imminent.
* Participation in studies that resulted in departure from normal treatment routine or invasive investigations within \<6 months back in time.

Where it's running

  • Karolinska University Hospital
    Stockholm, Stockholms Län, Sweden
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.