Family genetics may hold key to bladder pain mystery
NCT ID NCT00389142
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study aims to find genetic factors that may cause interstitial cystitis (also called bladder pain syndrome). Researchers are collecting blood or saliva samples and medical information from 1,000 people with the condition and their family members across North America. No treatment is given; the goal is to better understand what causes the disease.
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
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About 1,000 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2006
- Expected to finish
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Dec 2030
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.
Who is studied
The investigators are collecting patients throughout North America (including the United States and Canada)
- Ages
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1 year and older
- Sex
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Anyone
- 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: * Diagnosis of IC/BPS * Males and females of any age * Urinary frequency - more than 1X/hour, and/or * Dysuria, and/or * Pelvic, suprapubic, or abdominal pain - for 3 months or longer * Nocturia * Normal urinary stream (by history) * No evidence of active bacterial UTI (no pyuria \& negative urinary culture for last 3 months) * First degree relative of someone with above symptoms Exclusion Criteria: * Major structural/anatomical urinary tract abnormalities by ultrasound * Underlying inborn conditions affecting the urinary tract * Surgery/chemotherapy affected pelvic area * GI or GU cancers * Severe Constipation in children only
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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
1 site. 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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Boston Children's Hospital (BCH)
RECRUITINGBoston, Massachusetts, 02115, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can Hands-On therapy soothe a painful bladder condition?
- Can a nerve pain drug boost bladder pain relief?
- Aloe vera concentrate put to the test against chronic bladder pain
- Could an antidepressant ease chronic bladder pain? new trial investigates
- Could a Low-Dose opioid blocker ease bladder pain?