Clinical trial Recruiting at 1 site Phase 2 Interventional Ages 18 to 100

Treatment for cognitive impairments in long COVID patients

Official title: DAOIB for the Treatment of Cognitive Impairment Induced by COVID-19 -An Open Trial

Run by Chang Gung Memorial Hospital · NCT05764538 · Data updated 2026-11-12

This study is testing whether a treatment called DAOIB can help people with long COVID who are struggling with thinking and memory problems feel better over 24 weeks.

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years to 100 Years
SexAll
Enrollment40 (estimated)
SponsorChang Gung Memorial Hospital
Academic / other
Locations1 site (Kaohsiung City)
StatusRecruiting
StartedFebruary 27, 2023
Main results expectedJune 2027
Study endsJune 2027
Registry record updatedOctober 23, 2026
Trial IDNCT05764538 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are individuals with post-COVID-19 cognitive impairments who are physically healthy and can effectively communicate.

Probably not a fit

Patients with significant cerebrovascular disease or major neurological, psychiatric, or medical conditions unrelated to long COVID may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a 24-week open trial aimed at evaluating the effects of DAOIB on cognitive impairments in patients suffering from long COVID. Participants will receive DAOIB for the entire duration and will be assessed every 8 weeks to monitor improvements in cognitive function, mood symptoms, global functioning, and quality of life. The study specifically targets individuals who have experienced cognitive issues following COVID-19 infection, ensuring they meet specific health criteria. The goal is to determine the efficacy of DAOIB in alleviating these cognitive challenges.

Why it matters

Potential benefit: If successful, this treatment could significantly improve cognitive function and quality of life for long COVID patients experiencing brain fog.

How similar studies have gone: While there is ongoing research into cognitive impairments related to long COVID, the specific use of DAOIB in this context is novel and has not been extensively tested in prior studies.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* "post-COVID-19 condition" defined by WHO (symptoms present at three months after SARS-CoV-2 infection and last for at least 2 months which cannot be explained by an alternative diagnosis)(Cabrera Martimbianco, Pacheco et al. 2021) and COVID-induced cognitive impairments
* physically healthy and have all laboratory assessments (including urine/blood routine, biochemical tests, and electrocardiograph) within normal limits
* have sufficient education to communicate effectively and are capable of completing the assessments of the study

Exclusion Criteria:

* history of significant cerebrovascular disease
* Hachinski Ischemic Score \> 4
* major neurological, psychiatric or medical conditions other than long COVID-induced cognitive impairments
* memantine use (memantine is an NMDAR partial antagonist)
* substance (including alcohol) abuse or dependence
* delusion, hallucination or delirium symptoms
* severe visual or hearing loss
* inability to follow the protocol

Where it's running

  • Kaohsiung Chang Gung Memorial Hospital
    Kaohsiung City, Taiwan
    Recruiting

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.