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C-Section spinal dose study: more drug may not mean more numbness

NCT ID NCT06729567

Knowledge-focused Sponsor: Centre of Postgraduate Medical Education Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study reviewed the records of 362 women who had a C-section under spinal anesthesia. Researchers wanted to see if using a higher dose of the anesthetic bupivacaine (within the usual range) led to more areas of the body being numbed. The goal is to help doctors choose the safest dose that still works well. The study is already completed and the results may guide future practice.

What this could mean

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

Active substance
hyperbaric bupivacaine
What this could lead to
If confirmed, this could help anesthesiologists choose safer doses without worrying about losing pain relief during C-sections.
What could go wrong
This is a retrospective analysis of existing records, not a controlled experiment. It can only show correlation, not cause, and the results may not apply to all 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

362 people

The number who actually took part.

Started

Nov 2024

Finished

Mar 2026

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

Initial cohort for the study will be selected from the cases of cesarean section in years 2017 - 2022, who delivered in Orlowski Hospital, Department of Obstetrics and Gynaecology, Warsaw, Poland. Intention is to include at least 300 participants in the final analysis, to allow for regression analysis.

Ages

18 years and older

Sex

Female participants only

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: * Cesarean delivery at term under spinal anesthesia * American Society of Anesthesiologists (ASA) physical status \<3 * BMI\<40 Exclusion Criteria: * Spinal anesthesia with less than 9mg of hyperbaric bupivacaine * Local anesthetic other than hyperbaric bupivacaine used * Failed spinal anesthesia * Poor quality of the anesthetic record - data required for analysis not available

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As listed by the trial registrant

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

Cesarean delivery Spinal anesthesia evaluation

Contacts and locations

Locations

  • Department of Anesthesiology and Intensive Care, Centre of Postgraduate Medical Education

    Warsaw, 01-355, Poland

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