Recruiting

Observational Study

Sponsor:

Stanford University

Code:

NCT07459764

Conditions

Circadian Dysregulation

Eligibility Criteria

Sex: Female

Age: 18 - 30

Healthy Volunteers: Accepted

Study Details

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.

Conditions

Circadian Dysregulation

Study ID

NCT07459764

Start date

Apr 15, 2026

Status verified date

Aug, 2026

Completion date

Nov 30, 2026

Anticipated

Primary completion date

Oct 30, 2026

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: Female

Age: 18 - 30

Healthy Volunteers: Accepted

Inclusion Criteria:

  • Regular menstrual cycle (21-35 days)
  • 18-30 years old

Exclusion Criteria:

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

Study Design

Enrollment

20 participants

Anticipated

Interventions and Outcome Measures

Arms

Women

Young women with regular menstrual cycles

Primary outcome measure

  • Stride time [ Time Frame: 28 days ]

Central Contacts and Locations

Central contacts

Lara Weed, BS, MS

650-723-2300weed@stanford.edu

Locations

Stanford University

Recruiting

Stanford, California, United States, 94305

Contacts

Lara Weed

weed@stanford.edu

More Information

Sponsor

Stanford University

Last update posted

Aug 12, 2026

Last verified

Aug, 2026

Keywords

  • sleep
  • circadian
  • menstrual
  • women's health

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-10. This information was provided to ClinicalTrials.gov by Stanford University on 2026-08-12.