Frequency and Clinical Phenotype of BAP1 Hereditary Predisposition Syndrome

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
AgeNot listed
SponsorMohamed Abdel-Rahman

About this trial

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.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

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.

Disqualifiers

Study material including consent forms are currently only available in English so non-English speaking subjects are excluding

Trial population

Providers at OSU will identify eligible participants through clinical practice. Providers at other institutions who become aware of our research through presentations at conferences, publications, etc. may identify one of their patients as eligible or potentially eligible for the study and introduce the study to their patient.

Trial design

Design model

Family-based

Time perspective

Prospective

Treatments tested in this trial

Not listed

Trial groups

500 Participants
are grouped into 2 trial groups
Group A: Patients with personal and/or family history suggestive of hereditary BAP1
Group B: Pathogenic, likely pathogenic variants in BAP1 and variants of uncertain significance

Trial outcomes

Primary outcomes

1

Prevalence of germline BAP1 variants in the unselected general population of cancer patients

Frequency of germline BAP1 pathogenic/likely pathogenic variants in different cancers

Time frame
5 years
2

Clinical phenotypes (this includes premalignant lesions, tumor type and age of onset) in at risk blood-line family members of the patients

Questionnaire and chart review of the clinical phenotype

Time frame
5 years

Secondary outcomes

1

Questionnaire to assess environmental risk factors modifying cancer risk in patients

Measurement used: questionnaire for various environmental risk factors

Time frame
10 years
2

Genotyping to assess genetic risk factors modifying risk of cancer

Genotyping for genetic variants that could modify the risk of cancer in subjects.

Time frame
10 years
3

Disease outcome (response to treatment, prognosis including prognostic markers)

Chart review of disease outcome

Time frame
10 years
4

Tumor pathology and genomics (including tumor grade, stage, somatic genomic alterations)

Review of pathology and study of genomics alterations in tumors

Time frame
10 years

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Mohamed Abdel-Rahman

Lead sponsor

Ohio State University

Sponsor institution