Could a cannabidiol drug help heal inflamed hearts?

NCT ID NCT05180240

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This trial tests whether CardiolRx, a pharmaceutical cannabidiol, can improve heart recovery in adults with acute myocarditis (heart muscle inflammation). Participants receive either CardiolRx or a placebo for 12 weeks. The study uses heart MRI scans to measure changes in heart tissue and function.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

CardiolRx (cannabidiol)

What this could lead to

If it works, this could point toward a new treatment to help the heart heal better after acute myocarditis.

What could go wrong

This is a phase 2 trial with 109 participants, so results are still early and may not confirm benefit. Side effects of cannabidiol are possible.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

acute myocarditis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Barzilai Medical Center

    Ashkelon, 7830604, Israel

  • Beilinson Hospital, Rabin medical Center

    Petah Tikva, 4941492, Israel

  • CHU de Montpellier

    Montpellier, 34295, France

  • Centre Hospitalier Universitaire de Nîmes

    Nîmes, 30029, France

  • Centre Hospitalier Universitaire de Poitiers

    Poitiers, France

  • Chu Rangueil

    Toulouse, France

  • Cleveland Clinic

    Cleveland, Ohio, 44195, United States

  • Complexo Hospitalar de Niterói

    Niterói, Rio de Janeiro, 24020-096, Brazil

  • Hopital Bichat Claude Bernard

    Paris, France

  • Hopital Louis Pradel Hospices Civils de Lyon

    Bron, 69500, France

  • Hospital Angelina Caron

    Campina Grande do Sul, Brazil

  • Hospital Felicio Rocho - Fundação Felice Rosso

    Belo Horizonte, Brazil

  • Hospital Moinhos de Vento

    Porto Alegre, Rio Grande do Sul, 90035-001, Brazil

  • Hospital Nove de Julho

    São Paulo, São Paulo, 01409-002, Brazil

  • Hospital Pró-Cardíaco

    Rio de Janeiro, Brazil

  • Hospital Regional de São José

    São José, Brazil

  • Hospital São Lucas

    Porto Alegre, Brazil

  • Hospital de Clínicas de Porto Alegre (HCPA)

    Porto Alegre, Rio Grande do Sul, 90035-003, Brazil

  • Hôpital Foch

    Suresnes, 92150, France

  • Hôpital Lariboisière - Département de Cardiologie

    Paris, 75475, France

  • Hôpital européen Georges-Pompidou

    Paris, France

  • Institut de Cardiologie hopital Pitié Salpêtrière

    Paris, France

  • Instituto D´Or de Pesquisa e Ensino

    Rio de Janeiro, 22281-100, Brazil

  • Instituto do Coração - InCor

    São Paulo, Brazil

  • Irmandade da Santa Casa de Misericórdia de São Paulo

    São Paulo, 01223-001, Brazil

  • Massachusetts General Hospital site

    Boston, Massachusetts, 02114, United States

  • McGill University Health Centre

    Montreal, Quebec, H4A 3J1, Canada

  • MedStar Heart and Vascular Institute

    Washington D.C., District of Columbia, 20010, United States

  • Minneapolis Heart Institute Foundation

    Minneapolis, Minnesota, 55407, United States

  • Nupec-Orizonti

    Belo Horizonte, Minas Gerais, 30210090, Brazil

  • PUC trials

    Curitiba, Paraná, 80230-130, Brazil

  • Shaare Zedek Medical Center

    Jerusalem, 9103102, Israel

  • Shamir Medical Center (Assaf Harofeh)

    Zrifin, 70300, Israel

  • Tel Aviv Sourasky Medical Center (Ichilov)

    Tel Aviv, 6423906, Israel

  • University of Alberta Hospital

    Edmonton, Alberta, T6G2B7, Canada

  • University of Pittsburgh Medical Center

    Pittsburgh, Pennsylvania, 15213, United States

  • Virginia Commonwealth University

    Richmond, Virginia, 23298, United States