NCT04792463 · Mohamed Abdel-Rahman
Frequency and Clinical Phenotype of BAP1 Hereditary Predisposition Syndrome
What this study is about
This research will have a significant impact on the overall management of those cancer patients and their family members who are at risk for hereditary cancer due to germline inactivation of BAP1. Our study will ultimately facilitate the development of novel screening, prevention and treatment strategies for these individuals with the syndrome.
View original scientific description
This research will have a significant impact on the overall management of those cancer patients and their family members who are at risk for hereditary cancer due to germline inactivation of BAP1. Our study will ultimately facilitate the development of novel screening, prevention and treatment strategies for these individuals with the syndrome. Because the vast majority of UM develop in pre-existing nevi, characterization of individuals at high risk for development of UM will allow closer screening and earlier intervention which would improve the treatment outcome not only for retaining vision but also for overall survival. Similarly in patients with germline BAP1 mutation CM develops in premalignant atypical melanocytic lesions and careful follow up of these patients will improve the outcome of their disease. In addition this study could have impact on the management of patients with personal and/or family history of several other cancers reported in patients with germline BAP1 mutation such as mesothelioma, renal cell carcinoma, cholangiocarcinoma, hepatocellular carcinoma, meningioma and basal cell carcinoma.
Primary outcome measures
Prevalence of germline BAP1 variants in the unselected general population of cancer patients
Time frame: 5 years
Frequency of germline BAP1 pathogenic/likely pathogenic variants in different cancers
Clinical phenotypes (this includes premalignant lesions, tumor type and age of onset) in at risk blood-line family members of the patients
Time frame: 5 years
Questionnaire and chart review of the clinical phenotype
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Patients who meet any of the following criteria:
- Personal history of one cancer reported in BAP1 cancer predisposition syndrome and family history of at least two 1st or 2nd degree relatives with cancer reported in hereditary BAP1 cancer predisposition syndrome such as UM, CM, mesothelioma, RCC, cholangiocarcinoma, meningioma and hepatocellular carcinoma.
- Any patient with personal history of at least 2 cancers reported in hereditary BAP1 cancer predisposition syndrome.
- Any subject (affected or unaffected) with a documented BAP1 pathogenic/ likely pathogenic variant.
- Any patient with a cancer reported in BAP1 and a germline variant of uncertain significance.
- At risk relatives of a patient with documented BAP1 mutation.
Exclusion criteria
- Study material including consent forms are currently only available in English so non-English speaking subjects are excluding
Where
- Columbus, Ohio
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Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Mar 9, 2026 · Source of record for eligibility and locations