Disease × agent evidence record

Cognitive Training for Long COVID: evidence, trials and status

Trials of Cognitive Training in Long COVID are registered but none has completed, so there is no outcome evidence from those studies yet; the record is a signal of research interest.

1 registered trials 0 recruiting 15 publications Evidence tier C · Preliminary Score 30.0
Research Tracker › Pairs › Long COVID › Cognitive Training
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

Cognitive Training is tracked by OSMF as an investigational option for Long COVID; no regulator has approved it for this indication, and most post-viral conditions have no approved disease-modifying therapy at all. ClinicalTrials.gov lists 1 registered trial linking Cognitive Training to Long COVID: 1 is terminated, withdrawn, suspended or of unknown status. The most advanced is Phase 2 (NCT06074848, sponsored by Universidade Federal de Pernambuco). It plans or enrolled 48 participants. Registered activity dates to 2023. The literature layer holds 15 publications for this pair: 1 systematic review, 6 clinical trial publications and 8 other publications. Because at least one synthesis-level source exists (systematic review, meta-analysis or Cochrane review), this pair has been assessed beyond single studies, although the synthesis may concern a different indication.

Long COVID / PASC is tracked on the OSMF post-viral programme alongside ME/CFS, Long COVID, POTS and MCAS. Across the programme, 423 candidate agents are logged for Long COVID, most of them preliminary; this page isolates the record for one of them.

Open in Repurposing ExplorerAgent page: Cognitive TrainingLong COVID hubLong COVID biomarkers & interventionsPubChem

Evidence table

Evidence tierC · Preliminary
Evidence score30.0 (trials 2.0, literature 23.0, tier 5, approved bonus 0.0)
Registered trials1 total: 0 recruiting, 0 active / not yet recruiting, 0 completed, 1 other
Linked publications15 (8 other publications, 6 clinical trial publications, 1 systematic review)
Agent typeOther (Other / Unclassified)
Development stage (any indication)Investigational
Mechanism / classNeurological / Autonomic
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
NCT06074848tDCS in the Management of Post-COVID Disorders
Universidade Federal de Pernambuco · 2023
status unknownPhase 248

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Published literature

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Mechanism and notes

Recorded mechanism or class: Neurological / Autonomic.

Clinical notes: Investigational for listed conditions. 1 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 Cognitive Training approved for Long COVID?

Cognitive Training is tracked by OSMF as an investigational option for Long COVID; 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 Cognitive Training in clinical trials for Long COVID?

ClinicalTrials.gov lists 1 registered trial linking Cognitive Training to Long COVID: 1 is terminated, withdrawn, suspended or of unknown status. The most advanced is Phase 2 (NCT06074848, sponsored by Universidade Federal de Pernambuco). It plans or enrolled 48 participants. Registered activity dates to 2023.

What does the evidence show for Cognitive Training in Long COVID?

Trials of Cognitive Training in Long COVID are registered but none has completed, so there is no outcome evidence from those studies yet; the record is a signal of research interest. 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. Cognitive Training for Long COVID: evidence, trials and status. OSMF Research Tracker. Updated 2026-10-07. https://research.opensourcemed.info/pairs/long-covid/cognitive-training.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.