Low-Dose Naltrexone for Chronic Fatigue Syndrome

JY
Overseen ByJarred Younger, PhD
Age: 18+
Sex: Any
Trial Phase: Phase 2
Sponsor: University of Alabama at Birmingham
No Placebo GroupAll trial participants will receive the active study treatment (no placebo)
Prior Safety DataThis treatment has passed at least one previous human trial

What You Need to Know Before You Apply

What is the purpose of this trial?

This trial tests a treatment called low-dose naltrexone to determine its effectiveness for people with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS), a condition causing extreme tiredness and other symptoms. Researchers conduct the study remotely, allowing participants from across the U.S. to join. Ideal candidates have been diagnosed with ME/CFS, experience fatigue that significantly impacts daily life, and are not using opioid pain medication. As a Phase 2 trial, the research focuses on measuring the treatment's effectiveness in an initial, smaller group of people.

Will I have to stop taking my current medications?

The trial does not specify if you need to stop taking your current medications, but you cannot participate if you are using opioid painkillers.

Is there any evidence suggesting that low-dose naltrexone is likely to be safe for humans?

Research has shown that low-dose naltrexone (LDN) is generally well-tolerated. In a study with patients experiencing ongoing fatigue after COVID-19, LDN proved to be safe. Another study found that 54.2% of patients reported feeling less fatigued after starting LDN. Additionally, a review of past patient records revealed that 53.8% of patients experienced relief from symptoms like pain and fatigue.

While these studies suggest LDN is safe for many people, no clinical trials specifically target LDN in patients with chronic fatigue syndrome or myalgic encephalomyelitis. Since this trial is in Phase 2, researchers are still gathering information on its safety and effectiveness for this condition.12345

Why do researchers think this study treatment might be promising for chronic fatigue syndrome?

Low-Dose Naltrexone is unique because it offers a novel approach to managing Chronic Fatigue Syndrome (CFS) by modulating the immune system and reducing inflammation. Unlike traditional treatments that primarily focus on symptom relief, such as managing pain or sleep disturbances, Low-Dose Naltrexone works by targeting the body's opioid receptors to help regulate the immune response. Researchers are excited about this treatment because it has the potential to address the underlying causes of CFS, offering hope for more comprehensive symptom management and improved quality of life for patients.

What evidence suggests that low-dose naltrexone might be an effective treatment for chronic fatigue syndrome?

Research has shown that low-dose naltrexone (LDN) might benefit people with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). In one study, 53.8% of patients reported improvement after using LDN, often experiencing reduced pain and fatigue. Another study found that LDN could aid those with persistent fatigue following COVID-19. This trial will assess the effects of LDN on participants with ME/CFS. Although research continues, these early findings offer promise for those considering LDN as a treatment option.1246

Who Is on the Research Team?

JY

Jarred Younger, PhD

Principal Investigator

University of Alabama at Birmingham

Are You a Good Fit for This Trial?

This trial is for individuals across the U.S. with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS). Specific eligibility criteria are not provided, but typically these would include age range, disease severity, and other health conditions.

Inclusion Criteria

Living in the United States
I am between 18 and 65 years old.
Meets ME-ICC criteria

Exclusion Criteria

I am currently using opioid pain medication.
Abnormal complete blood count
A1C > 9.0%
See 6 more

Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks

Baseline

Participants complete weekly outcome measurements without taking any medications to establish a stable baseline

4 weeks
Remote participation with weekly surveys

Treatment

Participants receive LDN capsules at one of four doses in a blinded fashion, with weekly adherence monitoring via REDCap surveys

8 months
Remote participation with weekly surveys

Endline

Participants complete weekly outcome measurements without taking any medications

4 weeks
Remote participation with weekly surveys

Follow-up

Participants are monitored for safety and effectiveness after treatment

4 weeks

What Are the Treatments Tested in This Trial?

Interventions

  • Low-Dose Naltrexone

Trial Overview

The study explores different doses of Low-Dose Naltrexone (LDN) to treat ME/CFS. Participants will receive one of four possible doses: 1.5mg, 3.0mg, 4.5mg or 6.0mg to determine which works best.

How Is the Trial Designed?

1

Treatment groups

Experimental Treatment

Group I: Participants Receiving Low-Dose NaltrexoneExperimental Treatment4 Interventions

Find a Clinic Near You

Who Is Running the Clinical Trial?

University of Alabama at Birmingham

Lead Sponsor

Trials
1,677
Recruited
2,458,000+

Citations

A Retrospective Cohort Study of One Pain Physician's Practice

Subjective symptom relief was reported by 53.8% of patients, most commonly improvements in pain (49 patients) and fatigue (25 patients), when ...

Low-dose naltrexone in the treatment of myalgic ...

Results: Outcome data were available in 92.2% of patients with an average follow-up time of 1.7 years. A positive treatment response to LDN was ...

Low-dose naltrexone and NAD+ for the treatment of ...

Our data suggest treatment with LDN and NAD+ is safe and may be beneficial in a subset of patients with persistent fatigue after COVID-19.

Low-Dose Naltrexone For ME/CFS: Dose-Finding

This exploratory clinical trial tests low-dose naltrexone (LDN) for the treatment of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) ...

Low-dose naltrexone as a treatment for chronic fatigue ...

We know of no clinical trials of naltrexone in patients with chronic fatigue syndrome or myalgic encephalomyelitis, although some patients report benefits.

Effect of low dose naltrexone for long covid: a systematic ...

In Tamariz 2024, 13 of 24 patients (54.2%) reported improved fatigue after starting LDN (21). Pain. Two studies reported pain outcomes, which ...