Understanding cognitive impairment in depression treatment with ECT

Long-term Potentiation Disruption Underlying Cognitive Impairment in ECT

Observational University of New Mexico · NCT06733558

This study is trying to see how electroconvulsive therapy (ECT) affects memory and learning in people with major depression or bipolar disorder by measuring brain activity before and after treatment.

Quick facts

Study typeObservational
Enrollment10 (estimated)
Ages18 Years to 80 Years
SexAll
SponsorUniversity of New Mexico Academic / other
Locations1 site (Albuquerque, New Mexico)
Trial IDNCT06733558 on ClinicalTrials.gov

What this trial studies

This observational study investigates the effects of electroconvulsive therapy (ECT) on long-term potentiation (LTP) in patients with major depressive disorder or bipolar disorder II. By measuring visual evoked potentials (VEPs) using electroencephalography (EEG) before and after ECT, researchers aim to understand how ECT influences cognitive functions such as memory and learning. The study employs a paired design to assess changes in brain activity related to LTP-like phenomena, which may help elucidate the cognitive side effects associated with ECT.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18-85 with major depressive disorder or bipolar disorder II who are clinically indicated for ECT.

Not a fit: Patients with defined neurological disorders, other psychiatric conditions, or substance use disorders may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved understanding and management of cognitive impairments following ECT, enhancing patient care.

How similar studies have performed: While studies on ECT and cognitive effects exist, this specific approach using VEPs to assess LTP is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion criteria:

* diagnosis of major depressive disorder (MDD; with or without psychotic features) or bipolar 2 most recent episode depressed;
* clinical indications for ECT with right unilateral electrode placement including treatment resistance or a need for a rapid and definitive response,
* age range adults 18-85 years, and
* English-speaking (many of the neuropsychological tests are only available in English). Antidepressant medications will be continued as clinically indicated. To maintain feasibility and retention, as needed medications will be permitted for anxiety and insomnia.

Exclusion criteria:

* Defined neurological or neurodegenerative disorder (e.g., traumatic brain injury, epilepsy, Alzheimer's disease);
* other psychiatric conditions (e.g., schizophrenia, bipolar I disorder);
* current drug or alcohol use disorder (except for nicotine);
* prisoners; and
* pregnancy (pre- menopausal participants will receive pregnancy test, which is clinically indicated for ECT and not part of study protocol).

Where this trial is running

Albuquerque, New Mexico

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Major Depressive DisorderBipolar Disorder IIelectroconvulsive therapybrain recoverymajor depressive disorderlong-term potentiationcognitive impairmentbipolar disorder, type II
Last reviewed 2026-06-13 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.