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New drug trial aims to beat exhaustion from Tick-Borne disease

NCT ID NCT06656351

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

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

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

About 40 people

The number the study aims to enrol. It can still change while the study runs.

Started

Nov 2025

Expected to finish

Sep 2027

An estimate. End dates often move.

Lead sponsor

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

18 years and older

Sex

Anyone

Healthy volunteers

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

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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Get notified about this study

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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.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Icahn School of Medicine at Mount Sinai

    RECRUITING

    New York, New York, 10029, United States