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Could vitamin d levels predict PCOS risks in teens?

NCT ID NCT06970821

Knowledge-focused Sponsor: Bagcilar Training and Research Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This completed study looked at 70 adolescent girls with PCOS and 40 healthy teens to see if vitamin D levels are linked to metabolic problems like insulin resistance. Researchers measured vitamin D, blood sugar, cholesterol, and belly fat thickness using ultrasound. The goal was to better understand early heart and metabolic risks in teens with PCOS.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If clear links are found, this could point toward vitamin D screening or supplementation as a way to manage metabolic risks in teens with PCOS.
What could go wrong
This is an observational study, not a treatment trial. It cannot prove cause and effect, and results may not apply to all populations.

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

106 people

The number who actually took part.

Started

Mar 2024

Finished

May 2025

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

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

Who is studied

Female adolescents aged 13 to 19 years who attended the adolescent gynecology outpatient clinic of a tertiary care hospital. Participants included adolescents diagnosed with polycystic ovary syndrome based on NIH criteria and age-matched healthy controls. All participants had attained menarche at least two years prior to enrollment.

Ages

13 to 19 years

Sex

Female participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Female adolescents aged 13 to 19 years * Having attained menarche at least two years prior to enrollment * For PCOS group: Diagnosis of polycystic ovary syndrome based on NIH criteria (presence of menstrual irregularity and clinical and/or biochemical hyperandrogenism) * For Control group: Regular menstrual cycles (cycle interval 21-35 days) and no clinical or biochemical signs of hyperandrogenism. Exclusion Criteria: * Use of medications affecting vitamin D metabolism, insulin sensitivity, or androgen levels within the past 6 months (e.g., oral contraceptives, insulin sensitizers, vitamin D supplements) * Presence of endocrine disorders such as congenital adrenal hyperplasia, hyperprolactinemia, Cushing's syndrome, thyroid dysfunction. * Chronic systemic diseases (e.g., diabetes mellitus, severe liver or kidney disease).

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Conditions

The condition(s) this trial relates to.

Insulin Resistance polycystic ovary syndrome vitamin D deficiency

As listed by the trial registrant

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

Insulin resistance Polycystic ovary syndrome Vitamin D deficiency

Contacts and locations

Locations

  • Bağcılar Training and Research Hospital

    Istanbul, 34200, Turkey (Türkiye)

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