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NCT04799288 · ClinicalTrials.gov registry record · Phase 1

Teriflunomide in HTLV-1 Associated Myelopathy/Tropical Spastic Paraparesis

A Phase 1 study of HAM/TSP, sponsored by National Institute of Neurological Disorders and Stroke (NINDS).

Recruiting
Registry status
Phase 1
Development phase
24
Enrollment target
1
Study location

NCT04799288: Recruiting Phase 1 study of HAM/TSP, sponsored by National Institute of Neurological Disorders and Stroke (NINDS).

NCT04799288 is a Phase 1 study of HAM/TSP that is actively recruiting participants, run by National Institute of Neurological Disorders and Stroke (NINDS). The registered enrollment target is 24 participants, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (60% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT04799288, a Phase 1 study of HAM/TSP, is actively recruiting participants, sponsored by National Institute of Neurological Disorders and Stroke (NINDS).

RECRUITING
Registry status
Phase 1
Development phase
24 participants
Enrollment target
1
Study location

Study Summary

Background: HTLV-1 associated myelopathy/tropical spastic paraparesis (HAM/TSP) is a rare, progressive disease. It occurs in some people infected with the HTLV-1 virus. It leads to weakness in the lower limbs and other serious problems. It has no treatment. Teriflunomide is a drug used to treat multiple sclerosis. It reduces immune cells that make the disease worse. Researchers want to learn if this drug can help people with HAM/TSP. Objective: To learn the effects, immune response, safety, and tolerability of teriflunomide in people with HAM/TSP. Eligibility: Adults ages 18 and older with HAM/TSP. Design: Participants will be screened under protocol 98-N-0047. Participants will have a medical history. They will have physical and neurological exams. They will have blood and urine tests. Participants will take 1 tablet of the study drug once a day for 9 months. They will keep a drug diary. Participants will have lymphapheresis. For this, blood is drawn from a needle in one arm. A machine divides the blood into red cells, plasma, and white cells. The white cells are removed. The plasma and red cells are returned to the participant through a needle in the other arm. Participants will have lumbar punctures ( spinal taps ). For this, a thin needle is inserted into the spinal canal in the lower back. Spinal fluid is removed. Participants will have magnetic resonance imaging (MRI) of the brain and spine. The MRI scanner is a metal cylinder surrounded by a strong magnetic field. During the MRI, participants will lie on a table that can slide in and out of the scanner. Participation will last for 15 months.

Primary Outcome

ex vivo spontaneous lymphoproliferation of HAM/TSP patients receiving teriflunomide and multicolor flow cytometric analysis of immune activation markers in both PBMCs and CSF

Conditions Studied

Interventions

  • DRUG Teriflunomide

Study Locations (1)

Maryland

  • National Institutes of Health Clinical Center - Bethesda

Trial Details

FieldValue
Enrollment Target 24 participants
Start Date 2021-09-24
Est. Completion 2029-12-31
Phase Phase 1

What NCT04799288 shows while recruiting

NCT04799288 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 24 participants, a relatively small participant target, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (60% lower).

The record links to 1 condition, with HAM/TSP appearing as the primary indexed condition, and to 1 intervention - of which Teriflunomide is the first listed.

NCT04799288 reports a single indexed study location in Maryland.

Frequently Asked Questions

What is clinical trial NCT04799288 about?

NCT04799288 is a clinical study titled "Teriflunomide in HTLV-1 Associated Myelopathy/Tropical Spastic Paraparesis". Background: HTLV-1 associated myelopathy/tropical spastic paraparesis (HAM/TSP) is a rare, progressive disease. It occurs in some people infected with the HTLV-1 virus. It leads to weakness in the lower limbs and other serious problems. It has no treatment. Teriflunomide is a drug used to treat mul...

What is the current status of trial NCT04799288?

This trial is currently recruiting. It is a Phase 1 study. The enrollment target is 24 participants. The study started on 2021-09-24. Estimated completion is 2029-12-31.

What conditions does trial NCT04799288 study?

This clinical trial studies the following conditions: HAM/TSP.

What interventions are being tested in trial NCT04799288?

The interventions under investigation include: Teriflunomide (DRUG).

Who is sponsoring clinical trial NCT04799288?

This trial is sponsored by National Institute of Neurological Disorders and Stroke (NINDS), which has 567 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT04799288 being conducted?

This trial has 1 study location across Maryland. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

How this trial's enrollment target compares

Where NCT04799288's enrollment target sits among peer trials

24 1521st of 2000 higher than 405 of 2,000 other Phase 1 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 1 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT04799288, the US trial registry maintained by the National Library of Medicine. NCT04799288 (small enrollment · single site footprint · recruiting) retrieved and formatted by PlainTrial, see methodology.