Laughing gas may ease pain of bladder botox shots
NCT ID NCT07387315
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether a mix of nitrous oxide (laughing gas) and oxygen can reduce pain during in-office bladder Botox injections for overactive bladder. About 96 adult women will receive either the gas plus standard numbing medicine or a sham mask plus standard care. Participants will rate their pain, anxiety, and satisfaction after the procedure.
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 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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About 96 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Feb 2026
An estimate. Start dates often move.
- Expected to finish
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Dec 2026
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 years and older
- Sex
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Female participants only
- Healthy volunteers
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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 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: * Adult women ≥18 years old scheduled for in-office intradetrusor botulinum toxin injection and able to consent. Exclusion Criteria: * Known/suspected vitamin B12 or folate deficiency or high-risk state (e.g., pernicious anemia, malabsorption, post-bariatric or strict vegan without supplementation) * currently pregnant * severe/unstable pulmonary disease or baseline hypoxemia requiring supplemental home oxygen * eye or ear surgery in the last six weeks * trapped-air conditions (e.g., untreated pneumothorax, bowel obstruction) * severe active otitis/sinus disease * inability to follow directions * history of adverse reaction to nitrous oxide
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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 places running it
2 sites. The list below names each one and where it is.
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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.
Contacts and locations
Locations
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Cincinnati Urogynecology Associates
Cincinnati, Ohio, 45220, United States
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Trihealth (Good Samaritan Hospital, Bethesda North Hospital)
Cincinnati, Ohio, 45220, United States
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