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Vitamin d levels may predict blood pressure drops during C-Section

NCT ID NCT07057362

Knowledge-focused Sponsor: Duzce University Source: ClinicalTrials.gov ↗

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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 Results may not be published yet.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)
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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This status has not been confirmed recently, so it may be out of date.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 is checking if pregnant women with low vitamin D are more likely to have a dangerous drop in blood pressure during a C-section when they get spinal anesthesia. Researchers will measure vitamin D levels before surgery and watch blood pressure closely during the procedure. The goal is to find out if vitamin D deficiency is a risk factor, which could help doctors better manage care for these patients.

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 140 people

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

Started

Mar 2025

Expected to finish

Dec 2025

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

Pregnant women aged 18 years and older who are scheduled for elective cesarean section under spinal anesthesia at a tertiary care university hospital. All participants will be clinically stable and provide informed consent prior to enrollment. The study population will be stratified based on serum vitamin D levels into deficient and sufficient groups for analysis of hypotension outcomes.

Ages

18 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: * Pregnant women aged 18 years or older * Scheduled for elective cesarean delivery under spinal anesthesia * Able and willing to provide written informed consent Exclusion Criteria: * Emergency cesarean sections * History of significant cardiovascular disease (e.g., arrhythmia, heart failure) * Known neurological disorders affecting autonomic function * Current vitamin D supplementation within the past 30 days * Inability to undergo blood sampling or provide valid hemodynamic data * Contraindication to spinal anesthesia

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Conditions

The condition(s) this trial relates to.

vitamin D deficiency

As listed by the trial registrant

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

Cesarean section Spinal anesthesia-induced hypotension Vitamin D deficiency

How to take part

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

  1. The places running it

    1 site. 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

  • Duzce University Faculty of Medicine, Department of Anesthesiology and Reanimation

    RECRUITING

    Düzce, Merkez, Turkey (Türkiye)

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