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DAOIB for the Treatment of Brain Fog

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

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05764538
Enrollment
40
Registered
2023-03-10
Start date
2023-02-27
Completion date
2026-06-01
Last updated
2026-03-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Long COVID

Brief summary

This is a 24-week open trial. We will enroll long-COVID patients with cognitive impairments. All patients will receive DAOIB for 24 weeks. We will assess the patients every 8 weeks during the treatment period (weeks 0, 8, 16, and 24). We hypothesize that DAOIB treatment will be beneficial in improving the cognitive function, mood symptoms, global functioning and quality of life in long-COVID patients with cognitive impairments.

Interventions

DRUGDAOIB

The DAOIB dose will be adjusted every 8 weeks according to clinical evaluation

Sponsors

Chang Gung Memorial Hospital
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 100 Years
Healthy volunteers
No

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

Design outcomes

Primary

MeasureTime frameDescription
Change from baseline in the Alzheimer's disease assessment scale - cognitive subscale at week 8, 16 and 24week 0, 8, 16, 24Alzheimer's disease assessment scale-cognitive subscale scores range from 0 (best) to 70 (worst)

Secondary

MeasureTime frameDescription
Change from baseline in Clinician's Interview-Based Impression of Change plus Caregiver Input score at week 8, 16 and 24week 8, 16, 24Change from baseline in Clinician's Interview-Based Impression of Change plus Caregiver Input score at week 8, 16 and 24
Change from baseline in Alzheimer's disease Cooperative Study scale for ADL in MCI (ADCS-MCI-ADL) score at week 8, 16 and 24week 0, 8, 16, 24The assessment appears to be a suitable instrument for evaluating activities of daily living in early-phase dementia. Its scores range from 0 (worst) to 78 (best)
Change from baseline in Quality of life score at week 8, 16 and 24week 0, 8, 16, 24Quality of life will be assessed by Medical Outcomes Study Short-Form-36 (SF-36). The SF-36 consists of eight sections: (1) vitality, (2) physical functioning, (3) bodily pain, (4) general health perceptions, (5) physical role functioning, (6) emotional role functioning, (7) social role functioning, and (8) mental health.
Change from baseline of 17-item Hamilton Rating Scale for Depressionweek 0, 8, 16, 24Assessment of depressive symptoms. The 17-item Hamilton Rating Scale for Depression will be measured every 8 weeks
Change from baseline of Hamilton Anxiety Rating Scaleweek 0, 8, 16, 24Assessment of anxiety symptoms. The Hamilton Anxiety Rating Scale will be measured every 8 weeks
Change from baseline of Perceived Stress Scaleweek 0, 8, 16, 24Assessment of stress and anxiety symptoms. The Perceived Stress Scale will be measured every 8 weeks
Change from baseline in the score of a battery of additional cognitive testsweek 0, 8, 16, 24The battery of additional cognitive tests include speed of processing (Category Fluency), working memory (Wechsler Memory Scale, Spatial Span), verbal/nonverbal learning and memory tests (Wechsler Memory Scale, Word Listing)

Countries

Taiwan

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 20, 2026