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Not yet recruitingNCT05181189Updated Mar 20, 2026

NMDA Enhancement Combined With Omega-3 for Early Dementia

A Phase 2 interventional study of DAOIB+Omega-3 and DAOIB+Placebo in Omega 3 Fatty Acids and Dementia, sponsored by Chang Gung Memorial Hospital. Not yet recruiting at 1 site in Taiwan. Open to participants aged 50 Years to 100 Years. Per ClinicalTrials.gov, last updated 2026-03-20.

Sponsored by Chang Gung Memorial Hospital · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
140
Allocation
Randomized
Ages
50 Years to 100 Years
Sex
All
01

Study summary

In this 4-year proposed project, we will enroll 140 patients with aMCI or mild AD into a 24-week randomized, double-blind, placebo-controlled drug trial. All patients will be allocated randomly to one of two treatment groups for 24 weeks (n = 70 in each group) in a double-blind manner: [1] DAOIB + omega-3; [2] DAOIB + placebo. We will assess the patients every 8 weeks during the treatment period (weeks 0, 8, 16, and 24). We hypothesize that DAOIB combined with omega-3 will yield better efficacy than placebo in improving the cognitive function, global functioning and quality of life in patients with aMCI or mild AD.

02

Conditions studied

  • Omega 3 Fatty Acids
  • Dementia

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03

In context

Dementia

2,172 studies on the registry are indexed under Dementia; 540 are open to participants now.

This study's planned enrollment of 140 is above the median of 83 across 1,629 interventional studies indexed under Dementia.

Browse Dementia studies →

Lead sponsor

Chang Gung Memorial Hospital is the lead sponsor of 1,064 studies on the registry; 235 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
50 Years to 100 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Clinical diagnosis of Alzheimer's disease or mild cognitive impairment
  • MMSE between 10-26
  • CDR 1 or 0.5

Exclusion criteria

Exclusion Criteria:

  • Hachinski Ischemic Score > 4
  • Substance abuse/dependence
  • Parkinson disease, epilepsy, dementia with psychotic features
  • Major depressive disorder
  • Major physical illnesses
  • memantine or special omega-3 fatty acids therapy within 3 months before enrollment
  • Severe visual or hearing impairment
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
140 participants (estimated)

Study arms

  • Experimental
    DAOIB+Omega-3

    Drug: DAOIB+Omega-3

  • Placebo comparator
    DAOIB+Placebo

    Drug: DAOIB+Placebo

Interventions

  • DrugDAOIB+Omega-3

    The omega-3 fatty acids dose will be adjusted every 8 weeks according to clinical evaluation.

  • DrugDAOIB+Placebo

    Placebo

06

What researchers measure

Primary outcomes

  1. Change from baseline in the Alzheimer's disease assessment scale - cognitive subscale at week 8, 16 and 24

    Alzheimer's disease assessment scale-cognitive subscale scores range from 0 (best) to 70 (worst)

    Time frame: week 0, 8, 16, 24

Secondary outcomes

  1. Change from baseline in Clinician's Interview-Based Impression of Change plus Caregiver Input score at week 8, 16 and 24

    Change from baseline in Clinician's Interview-Based Impression of Change plus Caregiver Input score at week 8, 16 and 24

    Time frame: week 8, 16, 24

  2. Change from baseline in Mini-Mental Status examination score at week 8, 16 and 24

    Change from baseline in Mini-Mental Status examination score at week 8, 16 and 24

    Time frame: week 0, 8, 16, 24

  3. Change from baseline in Clinical Dementia Rating Scale Sum of Boxes (CDR-SB) at week 8, 16 and 24

    Change from baseline in Clinical Dementia Rating Scale Sum of Boxes (CDR-SB) at week 8, 16 and 24

    Time frame: week 0, 8, 16, 24

  4. Change from baseline in Alzheimer's disease Cooperative Study scale for ADL in MCI (ADCS-MCI-ADL) score at week 8, 16 and 24

    The 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)

    Time frame: week 0, 8, 16, 24

  5. Change from baseline in Quality of life score at week 8, 16 and 24

    Quality 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.

    Time frame: week 0, 8, 16, 24

  6. Change from baseline in the composite score of a battery of additional cognitive tests at week 24

    The 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).

    Time frame: week 0, 24

07

Study locations

1 site
  • Kaohsiung Chang Gung Memorial Hospital
    Kaohsiung City, 886, Taiwan
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 20, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05181189
Lead sponsor
Chang Gung Memorial Hospital
Responsible party
Sponsor
First posted
Jan 6, 2022
Start date
Aug 2026 (estimated)
Primary completion
Mar 2028 (estimated)
Completion
Mar 2028 (estimated)
Last update
Mar 20, 2026

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Mar 2026. You cannot join it, but the record below documents what was studied.

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