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Any Bardet-Biedl syndrome in which the cause of the disease is a mutation in the BBS12 gene.
Features include always present findings: Polydactyly, Cystic renal dysplasia, Rod-cone dystrophy, and Hypogonadism; and common findings: Postaxial hand polydactyly, Hydroureter, Abdominal mass, and Hydrometrocolpos and others. 13 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Arms and legs | 2 | Postaxial hand polydactyly, Postaxial foot polydactyly |
BBS12 encodes Bardet-Biedl syndrome 12 (710 aa). Component of the chaperonin-containing T-complex (TRiC), a molecular chaperone complex that assists the folding of proteins upon ATP hydrolysis. Highest expression in Testis (12.7 TPM) and Thyroid (10.1 TPM).
Bardet-Biedl syndrome 12 is associated with mutations in the BBS12 gene on chromosome 4.
The BBS12 protein participates in Formation of the BBSome pathway.
BBS12 is classified as a druggable target with score 0.0.
Genetic testing for BBS12 is available. Testing is considered confirmatory for diagnosis.
Biomarker and diagnostic research for Bardet-Biedl syndrome 12 has been reported in the published literature.
Phenotype severity distribution: 4 always present features, 8 common features.
5 clinical trials registered, 3 recruiting. Interventions under study include other interventions and gene therapy. Pipeline includes 1 EARLY_PHASE1, 1 NA. Research is sponsored by a mix of industry and academic institutions.
NCT ID | Title | Phase | Sponsor | Status |
|---|---|---|---|---|
[NCT04461444](https://clinicaltrials.gov/study/NCT04461444) |
Data assembled from 6 of 12 sources · Last updated Sep 19, 2026, 4:32 PM UTC
Online Mendelian Inheritance in Man
Genetic and Rare Diseases Info Center
Common questions about Bardet-Biedl syndrome 12
Digestive system |
1 |
Abdominal mass |
Brain and nerves | 1 | Difficulty with thinking and memory (cognitive impairment) |
Kidneys and urinary system | 1 | Cystic renal dysplasia |
Hormones | 1 | Hypogonadism |
COhort for Bardet-Bield Syndrome and Alström Syndrome for Translational Research Monocentric Interventional Study
NA |
University Hospital, Strasbourg, France |
RECRUITING |
[NCT02435940](https://clinicaltrials.gov/study/NCT02435940) | Inherited Retinal Degenerative Disease Registry | — | Foundation Fighting Blindness | RECRUITING |
[NCT07269665](https://clinicaltrials.gov/study/NCT07269665) | First-in-Human, Dose Escalation Trial of AXV-101 in BBS1-Related Retinal Degeneration | EARLY_PHASE1 | Axovia Therapeutics | UNKNOWN |
[NCT06239064](https://clinicaltrials.gov/study/NCT06239064) | Early Genetic Identification of Obesity | — | Rolfs Consulting und Verwaltungs-GmbH (RCV) | ACTIVE_NOT_RECRUITING |
[NCT02329210](https://clinicaltrials.gov/study/NCT02329210) | Clinical Registry Investigating Bardet-Biedl Syndrome | — | Marshfield Clinic Research Foundation | RECRUITING |
14 publications have been identified in PubMed for Bardet-Biedl syndrome 12. Research spans Epidemiology / Natural History (50%), Case Report / Case Series (14%), and Clinical Trial Publication (14%).
Research Type | Count | % of Total |
|---|---|---|
Disease patterns and progression | 7 | 50% |
Patient case studies | 2 | 14% |
Clinical study results | 2 | 14% |
Other research | 1 | 7% |
Testing and diagnosis research | 1 | 7% |
Laboratory research | 1 | 7% |
Mahler EA (2026). [PMID: 41238926](https://pubmed.ncbi.nlm.nih.gov/41238926/). *Ophthalmologie*. [Clinical Trial Publication]
Thiriveedi D (2026). [PMID: 41766136](https://pubmed.ncbi.nlm.nih.gov/41766136/). *Clin Endocrinol (Oxf)*. [Epidemiology / Natural History]
Varughese RS (2026). [PMID: 42044156](https://pubmed.ncbi.nlm.nih.gov/42044156/). *J Clin Endocrinol Metab*. [Epidemiology / Natural History]
Hühne T (2026). [PMID: 40903014](https://pubmed.ncbi.nlm.nih.gov/40903014/). *J Clin Endocrinol Metab*. [Epidemiology / Natural History]
Milheiro J (2026). [PMID: 41940113](https://pubmed.ncbi.nlm.nih.gov/41940113/). *Clin Nephrol Case Stud*. [Case Report / Case Series]
Argente J (2025). [PMID: 39549719](https://pubmed.ncbi.nlm.nih.gov/39549719/). *Lancet Diabetes Endocrinol*. [Clinical Trial Publication]
Demas N (2025). [PMID: 40877827](https://pubmed.ncbi.nlm.nih.gov/40877827/). *BMC Med Genomics*. [Diagnostic / Biomarker]
Feizabadi MH (2025). [PMID: 38407766](https://pubmed.ncbi.nlm.nih.gov/38407766/). *Biochem Genet*. [Epidemiology / Natural History]
Tomlinson JW (2025). [PMID: 40519161](https://pubmed.ncbi.nlm.nih.gov/40519161/). *J Clin Invest*. [Other]
Liu X (2025). [PMID: 40914337](https://pubmed.ncbi.nlm.nih.gov/40914337/). *Exp Eye Res*. [Basic Science / Preclinical]
AI-curated news mentioning Bardet-Biedl syndrome 12
Updated Jul 21, 2026
FDA approved Casgevy CRISPR gene therapy for children as young as 2 with sickle cell disease on July 1, 2026. Here's what families need to know about this milestone. Approximately 5,500 additional American children are now eligible for this established one-time therapy, according to Vertex Pharmaceuticals, Casgevy's developer. Casgevy also covers transfusion-dependent beta-thalassemia in this new age indication. Sickle cell disease is a lifelong inherited blood disorder that warps red blood cells into stiff, crescent shapes that can block blood flow, starving organs and tissues of oxygen. The world's first CRISPR-based gene therapy has been approved for children as young as two years old, opening the possibility of a single, potentially curative treatment to thousands of American children with sickle cell disease before years of organ damage can narrow what medicine can do for them. Families with children aged 2 and older who have sickle cell disease should speak with their pediatric hematologist about whether Casgevy is appropriate to consider at this stage of their child's disease. Ask specifically which authorized treatment centers perform Casgevy in your region. Treatment is available only at specialized sites, and geographic access remains limited. Contact your child's insurance plan or Medicaid office to ask about coverage. Medicaid coverage for gene therapies varies by state, and some states have developed outcomes-based payment models for high-cost therapies. "With today's decision, pediatric patients as young as 2 years of age can now access a critical additional treatment option to treat these debilitating, life-threatening diseases," said Karim Mikhail, acting director of the Office of Therapeutic Products at the FDA's Center for Biologics Evaluation and Research, according to the FDA press announcement. Casgevy is a non-viral, ex vivo CRISPR/Cas9 gene-edited cell therapy.
A new treatment for children aged 2 or older with sickle cell disease has been approved by the U.S. Food & Drug Administration. In a press release on Wednesday, the FDA announced it had approved Casgevy, the first gene therapy for children with sickle cell disease. (NewsNation) — A new treatment for children aged 2 or older with sickle cell disease has been approved by the Food & Drug Administration (FDA). In a Wednesday news release, the FDA announced it had approved Casgevy, the first gene therapy for children with the disease. “Casgevy is a gene therapy consisting of the patient’s own (autologous) hematopoietic (blood) stem cells, administered as a one-time single dose for intravenous infusion,” the release noted. “Pediatric patients as young as 2 years of age can now access a critical additional treatment option to treat these debilitating, life-threatening diseases,” Karim Mikhail, the acting director of the Center for Biologics Evaluation and Research, wrote. “These disorders carry a heavy burden for children and their families, affecting growth, development, and long-term health in profound ways,” Megha Kaushal, acting deputy director of the Office of Therapeutic Products in CBER, said in the release.