New drug trial aims to beat exhaustion from Tick-Borne disease
NCT ID NCT06656351
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This phase 2 study tests the drug tafenoquine in 40 adults with chronic babesiosis who have severe fatigue. The goal is to see if tafenoquine can reduce fatigue and clear the Babesia parasite from the blood. Participants take the drug and report their fatigue levels using a standard questionnaire.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- tafenoquine
- What this could lead to
- If it works, this could provide a treatment option for chronic babesiosis patients suffering from severe fatigue.
- What could go wrong
- This is a small, early-phase trial with only 40 participants and no placebo group, so results may not be conclusive. The drug may not improve fatigue or could cause side effects.
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 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 40 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Nov 2025
- Expected to finish
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Sep 2027
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
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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18 years and older
- 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: * Male or female, aged ≥ 18 years * Severe disabling fatigue * Have at least one common symptom of babesiosis * Have laboratory evidence of exposure to babesia in the last 12 months * Able and willing to give written informed consent * Able and willing to perform all study assessments * If female negative urine pregnancy test and * If female agree to use an acceptable method of birth control Exclusion Criteria: * Glucose-6-phosphate-dehydrogenase (G6PD) deficiency * Breastfeeding * Unmanaged Psychotic disorder * Known hypersensitivity reaction to tafenoquine or other 8-aminoquinolines * Current or planned treatment with quinine * Uncontrolled cardiopulmonary or endocrine disorders * Taking OCT2/MATE substrates without appropriate medical oversight * Medical history of chronic, active viral diseases including HIV/AIDS, hepatitis B, and hepatitis C * Have a risk factors for relapsing babesiosis * Anorexia * Any concomitant significant illness unrelated to babesiosis * The patient is unable to tolerate medication by the oral route * The patient has previously taken tafenoquine * Hemoglobin at baseline is ≤ 8 g/dL
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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
1 site. 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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Icahn School of Medicine at Mount Sinai
RECRUITINGNew York, New York, 10029, United States