NCT07459764

Brief Summary

The investigators are conducting an observational trial examining young women over the course of 28 days in which we are monitoring movement, sleep, heart rate, oxygen saturation, gut physiology, light, and menstrual cycle. The inter- and independence of the cyclicity of these variables with each other, the circadian cycle, the menstrual cycle, and the sleep cycle will be tested.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
20

participants targeted

Target at below P25 for all trials

Timeline
2mo left

Started Apr 2026

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

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 Progress67%
Apr 2026Sep 2026

First Submitted

Initial submission to the registry

March 5, 2026

Completed
5 days until next milestone

First Posted

Study publicly available on registry

March 10, 2026

Completed
1 month until next milestone

Study Start

First participant enrolled

April 15, 2026

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 30, 2026

Expected
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

September 30, 2026

Last Updated

April 24, 2026

Status Verified

April 1, 2026

Enrollment Period

5 months

First QC Date

March 5, 2026

Last Update Submit

April 21, 2026

Conditions

Circadian Dysregulation

Keywords

sleepcircadianmenstrualwomen's health

Outcome Measures

Primary Outcomes (1)

  • Stride time

    Duration of each stride

    28 days

Secondary Outcomes (1)

  • Sleep

    28 days

Study Arms (1)

Women

Young women with regular menstrual cycles

Eligibility Criteria

Age18 Years - 30 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64)
Sampling MethodNon-Probability Sample
Study Population

Healthy young women with erratic schedules

You may qualify if:

  • Regular menstrual cycle (21-35 days)
  • years old

You may not qualify if:

  • Neuromuscular or neurodegenerative disease
  • Gut disorders
  • circadian sleep disorders
  • prescription medications affecting sleep
  • recovering from physical injury
  • taking hormonal birth control

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Stanford University

Stanford, California, 94305, United States

RECRUITING

Biospecimen

Retention: SAMPLES WITH DNA

Blood samples

MeSH Terms

Conditions

Chronobiology Disorders

Condition Hierarchy (Ancestors)

Nervous System Diseases

Study Officials

  • Jamie M Zeitzer, PhD

    Stanford University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Lara Weed, BS, MS

CONTACT

650-723-2300weed@stanford.edu

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

March 5, 2026

First Posted

March 10, 2026

Study Start

April 15, 2026

Primary Completion (Estimated)

August 30, 2026

Study Completion (Estimated)

September 30, 2026

Last Updated

April 24, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will share

Deidentified data will be provided via Dryad, analytic code will be provided via Github

Shared Documents
STUDY PROTOCOL, ANALYTIC CODE
Time Frame
IPD and supporting information will be made available after publication for an indefinite amount of time
Access Criteria
Both Dryad and Github are fully open access

Locations

US(1)