NCT07264257

Brief Summary

This study will use a randomized placebo-controlled trial to examine a single oral dose of 1650 mg choline influences brain functioning as measured by fMRI.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
38

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jun 2022

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 15, 2022

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 20, 2022

Completed
2.2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2025

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

September 10, 2025

Completed
3 months until next milestone

First Posted

Study publicly available on registry

December 4, 2025

Completed
Last Updated

December 4, 2025

Status Verified

September 1, 2025

Enrollment Period

6 months

First QC Date

September 10, 2025

Last Update Submit

December 1, 2025

Conditions

Keywords

cognitionfMRIworking memorycholine

Outcome Measures

Primary Outcomes (1)

  • BOLD Signal during fMRI working memory task

    fMRI BOLD signal during a working memory task

    Measured on each of the two study days

Study Arms (2)

Choline

EXPERIMENTAL

Each subject completes two study days with choline and placebo.

Dietary Supplement: Choline

Placebo

EXPERIMENTAL

Each subject completes two study days with choline and placebo.

Dietary Supplement: Placebo

Interventions

PlaceboDIETARY_SUPPLEMENT

Each subject gets one 1650 mg oral choline dose or placebo on each of two study days.

Placebo
CholineDIETARY_SUPPLEMENT

Each subject gets one 1650 mg oral choline dose or placebo on each of two study days.

Choline

Eligibility Criteria

Age50 Years - 65 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Women aged 50-65 years
  • Postmenopausal: Women who are postmenopausal will have not had a period in the last 12 months, have FSH\>30 IU/L, and estradiol (E2) \<50 pg/ml.
  • Nonsmokers
  • Not taking hormone therapy, SSRIs, phytoestrogens, SERMS, or antiestrogen medications and will be at least one year without such treatment
  • Physically healthy
  • No cardiovascular disease other than mild hypertension. Subjects will also not have current untreated or unremitted Axis I or II psychiatric or cognitive disorders (see screening below).
  • IQ in the normal range \>80
  • Normal neuropsychological test performance

You may not qualify if:

  • MCI or dementia - Montreal Cognitive Assessment \<26, Mattis Dementia Rating Scale \<130, and Global Deterioration Scale \>2
  • History of cancer treatment with cytotoxic and/or ongoing (current) maintenance targeted chemotherapy
  • Blood pressure \> 160/100 (untreated)
  • Untreated thyroid disease
  • Significant cardiovascular disease
  • Asthma or COPD
  • Active peptic ulcer
  • Hyperthyroidism
  • Epilepsy
  • Current untreated or unremitted Axis I psychiatric disorders
  • Use of medications on the Prohibited medications (see list)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Vermont

Burlington, Vermont, 05401, United States

Location

MeSH Terms

Interventions

Choline

Intervention Hierarchy (Ancestors)

EthanolaminesAmino AlcoholsAlcoholsOrganic ChemicalsAminesTrimethyl Ammonium CompoundsQuaternary Ammonium CompoundsOnium Compounds

Study Officials

  • Julie A Dumas, PhD

    University of Vermont

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
Double blind
Purpose
BASIC SCIENCE
Intervention Model
CROSSOVER
Model Details: placebo controlled study
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

September 10, 2025

First Posted

December 4, 2025

Study Start

June 15, 2022

Primary Completion

December 20, 2022

Study Completion

March 1, 2025

Last Updated

December 4, 2025

Record last verified: 2025-09

Data Sharing

IPD Sharing
Will share

After data are published, deidentified data will be made available to those who request access.

Shared Documents
STUDY PROTOCOL, SAP, ANALYTIC CODE
Time Frame
10/2025 until 9/2030

Locations