Can two existing drugs stop rheumatic fever from scarring young hearts?
NCT ID NCT07830108
First seen Sep 21, 2026 · Last updated Sep 21, 2026
Summary
Researchers are running a Phase 3 trial to see whether hydroxychloroquine or corticosteroids can reduce heart valve damage in children and young people with acute rheumatic fever. The trial enrolls about 600 participants aged 4 to 25 who are hospitalized with confirmed valve inflammation. Using an adaptive design, the team can test multiple treatments at once, stop ones that do not help, and add new options as evidence emerges. The main goal is to measure heart damage, need for heart surgery, or death at six months.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- hydroxychloroquine and corticosteroids (prednisone, prednisolone, methylprednisolone, or dexamethasone)
- What this could lead to
- If either treatment works, doctors could add it to standard care to limit heart valve damage from acute rheumatic fever, potentially sparing children from surgery later in life.
- What could go wrong
- The trial may show that neither hydroxychloroquine nor corticosteroids protects heart valves better than standard care. Corticosteroids can cause weight gain, high blood sugar, and mood changes, and hydroxychloroquine can affect vision with long-term use.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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About 600 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Dec 2026
An estimate. Start dates often move.
- Expected to finish
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Dec 2036
An estimate. End dates often move.
- Lead sponsor
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A government agency
The lead sponsor is a government body.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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4 to 25 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Aged ≥4 and ≤25 years old 2. Currently admitted to hospital, or hospital like setting, with the primary diagnosis of Definite or Possible Acute Rheumatic Fever (diagnosed according to the 2015 Jones Criteria) 3. Echocardiographic confirmed valvulitis during the current admission 4. If previous participation in the randomised ACT4RHD platform, then meets pre-specified criteria for re-enrolment 5. Patient expected to be able to complete protocol-required follow up assessments to 6 months post-enrolment Exclusion Criteria: 1. Presentation to current hospital was more than 10 days prior to randomisation 2. Cardiac surgery (or anticipated interhospital transfer for cardiac surgery) or death is anticipated within 72 hours from screening 3. Patient has had cardiac intervention (surgery or percutaneous) for RHD within the last 6 months 4. Previous cardiac intervention /surgery for RHD more than 6months ago, but patient has not had at least 2 post-intervention echocardiograms, including at least 1 echocardiogram more than 6months after the intervention. Each domain will have additional eligibility criteria. Refer to the appliable Domain Specific Appendix (DSA).
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
2 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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KidzFirst Hospital
Auckland, 2104, New Zealand
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Starship Child Health, Te Toka Tumai, Auckland
Auckland, 1023, New Zealand
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