Can a suppository or a local block take the pain out of fertility testing?
NCT ID NCT07792668
First seen Aug 28, 2026 · Last updated Aug 28, 2026
Summary
This trial tests two pain-relief options for hysterosalpingography (HSG), an X-ray test that checks the fallopian tubes and can be painful. Researchers will compare a rectal indomethacin suppository, a lidocaine injection around the cervix, and no pain medication in 180 women aged 18 to 45 who are having HSG as part of an infertility workup. The main question is whether either treatment lowers pain during the contrast injection, with secondary measures covering pain at other steps, anxiety, satisfaction, and side effects.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Rectal indomethacin suppository or paracervical block with lidocaine, compared with no premedication
- What this could lead to
- If one of these pain-relief methods works well, it could make HSG, a common infertility test, much more comfortable for many women.
- What could go wrong
- This is a single trial with 180 participants, so results may not apply to everyone. Also, both treatments carry small risks, such as allergic reactions or discomfort from the block itself.
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
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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About 180 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Sep 2026
An estimate. Start dates often move.
- Expected to finish
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Aug 2027
An estimate. End dates often move.
- Lead sponsor
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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
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18 to 45 years
- Sex
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Female participants only
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide 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 participants aged 18 to 45 years * Scheduled for diagnostic hysterosalpingography as part of infertility evaluation * Able to understand the study procedures and provide written informed consent * Able to report pain intensity using a 0-to-10 Numeric Rating Scale * Hysterosalpingography scheduled during the appropriate menstrual-cycle period according to routine institutional practice * Pregnancy excluded before hysterosalpingography according to routine institutional practice Exclusion Criteria: * Pregnancy or suspected pregnancy * Active pelvic inflammatory disease or active genital tract infection * Known hypersensitivity or contraindication to indomethacin or other nonsteroidal anti-inflammatory drugs * Known hypersensitivity to lidocaine or other amide-type local anesthetics * Known hypersensitivity to the contrast medium used for hysterosalpingography * Active peptic ulcer disease or a history of clinically significant gastrointestinal bleeding * Significant renal or hepatic disease * Clinically significant bleeding disorder * Current anticoagulant therapy * Use of systemic analgesic, sedative, or antispasmodic medication within the predefined period before hysterosalpingography * Chronic pelvic pain requiring regular analgesic treatment * Severe dysmenorrhea requiring regular analgesic treatment * Cervical stenosis requiring anesthesia for hysterosalpingography Inability to provide reliable pain scores
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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.
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