Registry for individuals with Bardet-Biedl Syndrome

Clinical Registry Investigating Bardet-Biedl Syndrome

Observational Marshfield Clinic Research Foundation · NCT02329210

This study is creating a registry to gather health information from people with Bardet-Biedl Syndrome to better understand the condition and help develop new treatments.

Quick facts

Study typeObservational
Enrollment1200 (estimated)
SexAll
SponsorMarshfield Clinic Research Foundation Academic / other
Locations1 site (Marshfield, Wisconsin)
Trial IDNCT02329210 on ClinicalTrials.gov

What this trial studies

The Clinical Registry Investigating Bardet-Biedl Syndrome (CRIBBS) is an international registry designed to collect comprehensive health information from individuals diagnosed with Bardet-Biedl Syndrome (BBS), a rare genetic disorder. The registry aims to centralize data to enhance understanding of the disease's variable symptoms and to support the development of targeted treatment strategies. Participants are recruited through family support organizations and a dedicated website, where they can register and provide consent. Data collection involves interviews to gather demographic and health information while ensuring patient privacy.

Who should consider this trial

Good fit: Ideal candidates for this registry are individuals with a genetic confirmation of Bardet-Biedl Syndrome or those exhibiting specific clinical features of the condition.

Not a fit: Patients who do not meet the established genetic or phenotypic criteria for Bardet-Biedl Syndrome will not benefit from this registry.

Why it matters

Potential benefit: If successful, this registry could lead to improved understanding and treatment options for patients with Bardet-Biedl Syndrome.

How similar studies have performed: Other registries for rare genetic disorders have shown success in improving patient outcomes and advancing research, indicating that this approach is promising.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria: (1) Genetic confirmation of BBS or (2) manifest four primary features of BBS or (3) manifest three primary features plus two secondary features.

Primary Features: Rod-Cone dystrophy, Polydactyly, Obesity, Learning disabilities, Hypogonadism in males, Renal anomalies

Secondary Features: Speech disorder/delay, Strabismus/cataracts/astigmatism, Brachydactyly/syndactyly, Developmental delay, Polyuria/polydipsia, Ataxia/poor coordination/imbalance, Mild spasticity (especially lower extremities), Left ventricular hypertrophy/congenital heart disease, Hepatic fibrosis

Exclusion Criteria:

Individuals not meeting established genetic and/or phenotypic criteria

Where this trial is running

Marshfield, Wisconsin

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Bardet-Biedl Syndrome
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.