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Pain relief combo for IUD insertion falls short as trial ends early

NCT ID NCT06951191

Symptom relief Sponsor: University of Missouri-Columbia 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
The trial has finished. Results may not be published yet.
Stopped early This study
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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study aimed to see if using a benzocaine spray before a lidocaine injection could reduce pain during IUD insertion. Participants were randomly assigned to receive different combinations of active drugs or placebos, and rated their pain on a scale. However, the trial was terminated after enrolling only one person, so it cannot provide meaningful results.

What this could mean

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

Active substance
Benzocaine 20% topical spray and Lidocaine 2% injectable solution
What this could lead to
If it worked, this could point toward a more effective pain management method for IUD insertion.
What could go wrong
The trial was terminated early with only 1 participant, so no reliable conclusions can be drawn. Results may not apply to others.

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.

Phase

Phase 4

Runs after approval, following long-term safety and how well the treatment works in everyday use.

Participants

1 person

The number who actually took part.

Started

Jun 2025

Finished

Apr 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.

Ages

18 years and older

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: * 18 years of age or older * Undergoing IUD insertion Exclusion Criteria: * IUD insertion \<6 weeks postpartum * Age \<18 years * Allergy or history of adverse effect of lidocaine, benzocaine (and inactive ingredients: flavor, isobutane, propane, polyethylene glycol, sodium saccharin), or ibuprofen * Not undergoing IUD insertion * Undergoing IUD insertion under general anesthesia * Usage of anti-inflammatory or as-needed anxiety medications (not daily use) in the 12 hours prior to IUD insertion

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As listed by the trial registrant

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

Iud insertion Iud insertion pain

Contacts and locations

Locations

  • Missouri OB/GYN Associates-Smiley Lane

    Columbia, Missouri, 65202, United States

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