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CompletedNCT04921930ARTEMISUpdated May 20, 2026

Evaluation of the Effect of Artesunate in Friedreich Ataxia (FA)

A Phase 1/2 interventional study of Artesunate Oral Product in Friedreich Ataxia, sponsored by Institut National de la Santé Et de la Recherche Médicale, France. Completed at 1 site in France. Open to male participants aged 16 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-05-20.

Sponsored by Institut National de la Santé Et de la Recherche Médicale, France · Phase 1/2, Interventional, and Treatment

Phase
Phase 1/2
Study type
Interventional
Enrollment
20
Allocation
Not applicable
Ages
16 Years to 65 Years
Sex
Male
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Study summary

This dose-escalation study is aimed at investigating a novel application for artesunate in the treatment of Friedreich ataxia. It will evaluate this novel application of oral artesunate using a surrogate biological marker as primary endpoint in a phase I-II open trial

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Conditions studied

  • Friedreich Ataxia

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In context

Friedreich Ataxia

107 studies on the registry are indexed under Friedreich Ataxia; 25 are open to participants now.

This study's enrollment of 20 is below the median of 30 across 74 interventional studies indexed under Friedreich Ataxia.

Browse Friedreich Ataxia studies →

Lead sponsor

Institut National de la Santé Et de la Recherche Médicale, France is the lead sponsor of 375 studies on the registry; 82 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
16 Years to 65 Years
Sexes eligible
Male
Accepts healthy volunteers
No

Inclusion criteria

  • Patients with FA confirmed by genetic analysis
  • Weight of at least 50 kg
  • Compliant patient agreeing to come to all protocol visits
  • Signature of consent form by patient or parents of minor patient
  • Patients with no treatment during 30 days prior to the first intake of study drug, except cardiac, diabetes and spasticity treatments
  • Patients agreeing to use effective contraception for the duration of the study and up to 91 days after the last dose of the study treatment
  • Affiliation to an Health Insurance Scheme of beneficiary of such a scheme

Exclusion criteria

Exclusion Criteria:

  • Patient under justice protection
  • Female patients
  • Abnormal biological values of renal and liver functions and cell blood count (CBC)
  • Progressive associated disease
  • Treatment interfering with iron transport within 30 days before first intake of artesunate
  • Participation to another clinical trial
  • Hypersensitivity to artesunate or to any component of the drug
  • Blood potassium lower than normal value
  • QT / QTc interval > 450 ms on the ECG performed at inclusion
  • Congenital long QT syndrome
  • Family history of sudden cardiac death before the age of 50
  • Heart disease: ischemia or myocardial infarction, congestive heart failure or conduction disorder in the 6 months preceding inclusion
  • History of arrhythmia
  • Electrolyte imbalances: hypomagnesemia, hypocalcemia
  • Bradycardia (\<50 beats per minute)
  • Acute neurological events within 6 months prior to inclusion
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Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
20 participants (actual)

Study arms

  • Experimental
    Artesunate

    Dose escalation of oral artesunate: Step 1: 25 mg daily (1 tablet) during one week Step 2: 50 mg daily (2 tablets) during one week (if no effect on biomarker and no adverse reaction at step 1) Step 3: 75 mg daily (3 tablets) during one week (if no effect on biomarker and no adverse reaction at step 2) Step 4: 100 mg daily (4 tablets) duing one week (if no efficacy and no adverse reaction at step 3)

    Drug: Artesunate Oral Product

Interventions

  • DrugArtesunate Oral Product

    Dose escalation intake of artesunate

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What researchers measure

Primary outcomes

  1. Search for the maximal tolerated and effective dose of oral artesunate to regulate iron homeostasis and Transferrin 1 receptor (TfR1) immunofluorescence in Peripheral Blood Mononuclear Cells (PBMCs)

    Evaluation of the biological efficacy on an ex vivo marker in the absence of observed side effects. This is a binary criterion established by comparison between compared measurements of the biomarker. If an effect on the biomarker is observed from the initial dose, the dose escalation will stop as the "ex-vivo" efficacy criterion is met. Otherwise the test will be repeated at an escalating dose. If an adverse effect is observed for a given dose, the maximal tolerated dose will be considered to be the immediately lower dose.

    Time frame: at Day 7 (last day of drug intake)

Secondary outcomes

  1. Incidence of Adverse Events with Artesunate in FA patients

    Rate of side effects according artesunate doses

    Time frame: From first intake to 30 days after last intake of study drug

  2. Type of Adverse Events with Artesunate in FA patients

    Desciption of side effects according artesunate doses

    Time frame: From first intake to 30 days after last intake of study drug

  3. Impact of stopping an effective dose of artesunate on the regulation of iron homeostasis and TfR1 immunofluorescence

    Evolution of the response to treatment after one week without treatment in patients who presented a positive response: Comparison of the results of intracellular iron concentration in in vitro PBMCs obtained with the sample at the end of the week without treatment with those obtained at the end of the week under treatment at a given dose

    Time frame: At Day 14 (7 days after the last drug intake)

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Study locations

1 site
  • Centre d'Investigation Clinique, hôpital Necker Enfants Malades
    Paris, France
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 20, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04921930
Lead sponsor
Institut National de la Santé Et de la Recherche Médicale, France
Collaborators
Imagine Institute
Responsible party
Sponsor
First posted
Jun 10, 2021
Start date
May 6, 2022
Primary completion
Apr 17, 2024
Completion
Apr 17, 2024
Last update
May 20, 2026

Study contacts

Arnold Munnich, MD
principal investigator · Institut National de la Santé Et de la Recherche Médicale, France

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jul 2024. You cannot join it, but the record below documents what was studied.

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