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PCOS diet study: High-Fiber, Low-Sugar plan shows promise

NCT ID NCT07426146

Disease control Sponsor: Shanghai First Maternity and Infant Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at whether a 6-month diet low in sugar and high in fiber can improve insulin resistance, hormone levels, and menstrual cycles in 56 women with PCOS living in remote Yunnan, China. The diet is adapted to local eating habits to make it easier to follow. The goal is to find practical ways to manage PCOS long-term in places with limited resources.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 56 people

The number the study aims to enrol. It can still change while the study runs.

Started

Aug 2025

Expected to finish

Apr 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Women aged 18-40 years who have resided locally for ≥12 months and meet the diagnostic criteria for PCOS will be eligible for inclusion.

Ages

19 to 40 years

Sex

Female participants only

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * PCOS diagnosis will follow the Rotterdam criteria (presence of two of the following three features: oligo-/anovulation, clinical/biochemical hyperandrogenism, and polycystic ovarian morphology, with exclusion of related disorders). Additional inclusion criteria comprise: body mass index (BMI) ≥24 kg/m² (Chinese obesity threshold), stable weight for at least 3 months prior to enrollment (±2 kg), willingness to maintain current physical activity levels throughout the study period, and residence within the designated study area for a minimum of 6 months. Exclusion Criteria: * pregnancy or lactation; type 1 diabetes or type 2 diabetes; thyroid dysfunction, hyperprolactinemia, congenital adrenal hyperplasia, Cushing's syndrome, androgen-secreting tumors, or other endocrine disorders affecting metabolism; use of hormonal contraceptives, insulin sensitizers, or anti-obesity medications within the past 3 months (e.g., metformin, GLP-1 receptor agonists, systemic corticosteroids, hormonal contraceptives, anti-androgens). Severe hepatic/renal/cardiovascular disease; gastrointestinal disorders incompatible with high-fiber diets; history of bariatric surgery; current participation in other dietary intervention programs; and individuals with cognitive impairment or language communication barriers who cannot comprehend the study procedures or provide informed consent. Participants will be required to maintain their habitual physical activity levels during the intervention period and must not initiate new weight-loss medications/supplements; any deviations will be documented as protocol violations

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Conditions

The condition(s) this trial relates to.

polycystic ovary syndrome

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

PCOS (polycystic ovary syndrome)

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    2 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Department of Gynaecology, Gengma People's Hospital

    RECRUITING

    Gengma County, Yunnan, 677500, China

  • Gengma People's Hospital

    RECRUITING

    Lincang, Yunnan, 677500, China

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