Clinical trial Recruiting at 1 site Phase 2 Interventional Ages 18 to 65

Using NMDA receptor modulation to treat cognitive impairment in bipolar I disorder

Official title: NMDA Receptor Modulation for the Treatment of Cognitive Impairment and Perceived Stress in Bipolar I Disorder

Run by China Medical University Hospital · NCT05977023 · Data updated 2026-11-12

This study is testing a new treatment to see if it can help improve thinking skills and reduce stress in adults with bipolar I disorder who are having depressive episodes.

More Bipolar I Disorder trials

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years to 65 Years
SexAll
Enrollment90 (estimated)
SponsorChina Medical University Hospital
Academic / other
Locations1 site (Taichung)
StatusRecruiting
StartedOctober 4, 2023
Main results expectedNovember 2027
Study endsDecember 2027
Registry record updatedOctober 23, 2026
Trial IDNCT05977023 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 to 65 with a diagnosis of bipolar I disorder currently experiencing a depressive episode.

Probably not a fit

Patients with severe cognitive impairment, psychotic disorders, or significant medical conditions 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 study investigates the efficacy and safety of an NMDA enhancer (NMDAE) in treating cognitive impairment and perceived stress in patients with bipolar I disorder experiencing depressive episodes. Participants, aged 18 to 65, who have been on stable treatment for at least four weeks, will be randomized to receive either NMDAE or a placebo for eight weeks. The study will assess cognitive function and quality of life through various scales and tests at multiple time points. The results will help determine the effectiveness of NMDAE compared to placebo in improving symptoms associated with bipolar depression.

Why it matters

Potential benefit: If successful, this treatment could significantly improve cognitive function and reduce perceived stress in patients with bipolar I disorder.

How similar studies have gone: While NMDA receptor modulation is a novel approach in this context, similar studies have shown promise in treating cognitive dysfunction in other psychiatric disorders.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Are 18 to 65 years of age;
* Satisfy a DSM-5-TR (American Psychiatric Association) diagnosis of BD-I, current episode depressed, after treatment of stable (i.e., at least 4 weeks) and adequate treatment of antipsychotic (quetiapine or lurasidone) and/or mood stabilizer;
* Have a 17-item Hamilton Depression Rating Scale (HAMD) score ≥18 and a Young Mania Rating Scale (YMRS) score ≤7 at baseline;
* Agree to participate in the study and provide informed consent

Exclusion Criteria:

* Current substance abuse or history of substance dependence in the past 6 months
* History of epilepsy, head trauma, stroke or other serious medical or neurological illness which may interfere with the study
* Schizophrenia or other psychotic disorder
* Moderate-severe suicidal risks
* Severe cognitive impairment
* Clinically significant laboratory screening tests (including blood routine, biochemical tests)
* Pregnancy or lactation;
* Inability to follow protocol

Where it's running

  • Department of Psychiatry, China Medical University Hospital
    Taichung, Taiwan
    Recruiting

Study contacts

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.