Disease × agent evidence record

Clonidine for ME/CFS: evidence, trials and status

Clonidine has 2 completed trials and 8 linked publications for ME/CFS. Completed trials may or may not have posted results; follow the NCT links to check.

2 registered trials 0 recruiting 8 publications Evidence tier C · Preliminary Score 19.0
Research Tracker › Pairs › ME/CFS › Clonidine
Research map, not treatment advice. This page aggregates registry and literature records. It does not evaluate efficacy, dosing or safety for any individual. Discuss any treatment decision with a qualified clinician.

Summary

Clonidine is tracked by OSMF as an investigational option for ME/CFS; no regulator has approved it for this indication, and most post-viral conditions have no approved disease-modifying therapy at all. ClinicalTrials.gov lists 2 registered trials linking Clonidine to ME/CFS: 2 have completed. The most advanced is Phase 2 (NCT01040429, sponsored by Oslo University Hospital). It plans or enrolled 120 participants. Registered activity dates to 2010. The literature layer holds 8 publications for this pair: 8 PubMed search records. Publication years run from 1990 to 2023. Items here are search-derived or curated references rather than classified trial reports; treat them as leads to read, not as graded evidence.

Myalgic Encephalomyelitis / Chronic Fatigue Syndrome is tracked on the OSMF post-viral programme alongside ME/CFS, Long COVID, POTS and MCAS. Across the programme, 191 candidate agents are logged for ME/CFS, most of them preliminary; this page isolates the record for one of them.

Open in Repurposing ExplorerAgent page: ClonidineME/CFS hubME/CFS biomarkers & interventionsPubChem

Evidence table

Evidence tierC · Preliminary
Evidence score19.0 (trials 6.0, literature 8.0, tier 5, approved bonus 0.0)
Registered trials2 total: 0 recruiting, 0 active / not yet recruiting, 2 completed, 0 other
Linked publications8 (8 PubMed search records)
Agent typeBehavioural (Behavioral / Protocol / Exercise, Other / Unclassified)
Development stage (any indication)Investigational
Mechanism / classNot recorded
Data sourcesOSMF therapeutic agent database, ClinicalTrials.gov, PubMed
How the evidence score is calculated
  • Each registered trial scores by status (recruiting / active / enrolling 3, completed 2.5, not yet recruiting 2, unknown 1, terminated / withdrawn / suspended 0.5) plus a phase bonus (phase 3-4 +2, phase 2 +1, phase 1 +0.5). The trial component is capped at 30.
  • Each literature item scores by design (Cochrane review 5, meta-analysis 4, systematic review 3, RCT 3, clinical trial publication 2, curated reference 1.5, other PubMed record 1). The literature component is capped at 30.
  • The existing evidence tier adds 15 (A / Strong), 10 (B / Moderate), 5 (C / Preliminary) or 0 (D / Anecdotal).
  • Agents approved for any indication (max clinical phase 4) add 5, because an approved agent has an established safety profile that lowers the barrier to repurposing trials.
  • The score ranks what has been studied, not what works. It does not read effect sizes or directions of effect.

Registered clinical trials

NCT IDTitleStatusPhaseEnrolment
NCT01040429The Norwegian Study of Chronic Fatigue Syndrome in Adolescents: Pathophysiology and Intervention Trial
Oslo University Hospital · 2010
completedPhase 2120
NCT01507701Pilot Study for the NorCAPITAL Trial
Oslo University Hospital · 2010
completedNot applicable5

Search ClinicalTrials.gov for newer studies

Published literature

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Mechanism and notes

This is a behavioural, rehabilitation or protocol-based intervention rather than a molecule, so no pharmacological mechanism is recorded.

Clinical notes: Investigational for listed conditions. 2 associated trial(s) and 0 study reference(s) in current data. Review primary sources and consult specialists before use.

Safety: Limited specific safety data in these populations. Review full prescribing information and consult specialist. Many agents used off-label or investigational.

Dosing in studies: See linked studies/trials for reported doses and durations; typical protocols vary widely.

Frequently asked questions

Is Clonidine approved for ME/CFS?

Clonidine is tracked by OSMF as an investigational option for ME/CFS; no regulator has approved it for this indication, and most post-viral conditions have no approved disease-modifying therapy at all. Approval status for the specific indication should always be confirmed with the relevant regulator and prescribing information.

Is Clonidine in clinical trials for ME/CFS?

ClinicalTrials.gov lists 2 registered trials linking Clonidine to ME/CFS: 2 have completed. The most advanced is Phase 2 (NCT01040429, sponsored by Oslo University Hospital). It plans or enrolled 120 participants. Registered activity dates to 2010.

What does the evidence show for Clonidine in ME/CFS?

Clonidine has 2 completed trials and 8 linked publications for ME/CFS. Completed trials may or may not have posted results; follow the NCT links to check. OSMF's existing evidence tier for this pair is C (Preliminary), taken from the OSMF therapeutic agent database, which grades agents by the volume and design of condition-specific evidence rather than by effect size.

Cite this page

Open Source Medicine Foundation. Clonidine for ME/CFS: evidence, trials and status. OSMF Research Tracker. Updated 2026-10-07. https://research.opensourcemed.info/pairs/me-cfs/clonidine.html

Data: ClinicalTrials.gov, PubMed, Open Targets, ChEMBL, DGIdb and the OSMF therapeutic agent database. Last updated 2026-10-07. Page built 2026-10-07.

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This is a research map, not treatment advice. Evidence tiers and scores summarise what has been studied, not whether a treatment works or is safe for you.