Prospective Evaluation and Molecular Profiling in People With Gastric Tumors

Background: Certain stomach cancers are rare, but they have high mortality rates. Researchers want to learn more about gastric (stomach) tumors. In this study, they want to collect data from people who have stomach cancer or are at risk to get it. This data will be used to see if the people can be in other studies. Objective: To study tissue from stomach tumors and find people eligible for more studies on gastric cancer. Eligibility: Age greater than or equal to 2 years old who have or may have stomach cancer, lesions that may be related to stomach cancer, or an inherited disorder that leads to stomach cancer. Design: Participants will be screened with: Medical history Physical exam Blood and urine tests Heart tests Scans or ultrasound. For the scans, participants lie in a machine that takes pictures. For some scans, they will swallow or be injected with a small amount of radioactive material. Special cameras will show the material in the body. Tumor sample taken with a needle or surgery Some participants will have an endoscopy. A long, flexible tube with a camera will be inserted through the mouth into the stomach. The tube will collect tissue from the stomach. Some participants may have follow-up visits. Some may be invited to join other studies. Others will be contacted by phone to see how they are doing. ...

Sex

All

Minimum age

2 Years

* INCLUSION CRITERIA:
* Patients with any of the following are eligible:

  * Malignant or non-invasive, neoplastic lesions of the stomach confirmed by histopathology or cytopathology in a CLIA-certified laboratory;
  * Suspicious lesions not yet confirmed, but considered likely to be related to the stomach pending further evaluation;
  * Confirmed, deleterious germline mutation (including but not limited to HDGC, GAPPS) known to predispose to gastric tumors;
  * Confirmed or suspicious heritable gastric malignancy disorder;
  * Clinically suspicious personal or family medical history of gastric cancer or gastric cancer syndrome that warrants genetics evaluation.
* Patients must have an ECOG performance score of 0-2.
* Age greater than or equal to 2 years. Note: Patients greater than or equal to 2 and less than or equal to 18 years of age may only participate in research sample collection if the tissue acquisition is performed during a clinically indicated surgical procedure, and the sampling of tissue, blood and urine does not add risk to the clinically indicated procedures.
* The patient is a candidate for the clinically indicated medical evaluations that are being offered
* Ability of subject, their parents/guardians or legally authorized representative (LAR) to understand and must be willing to sign a written informed consent document.

EXCLUSION CRITERIA:

Candidates who do not meet the inclusion criteria.

• BACKGROUNDWang K, Yuen ST, Xu J, Lee SP, Yan HH, Shi ST, Siu HC, Deng S, Chu KM, Law S, Chan KH, Chan AS, Tsui WY, Ho SL, Chan AK, Man JL, Foglizzo V, Ng MK, Chan AS, Ching YP, Cheng GH, Xie T, Fernandez J, Li VS, Clevers H, Rejto PA, Mao M, Leung SY. Whole-genome sequencing and comprehensive molecular profiling identify new driver mutations in gastric cancer. Nat Genet. 2014 Jun;46(6):573-82. doi: 10.1038/ng.2983. Epub 2014 May 11. PMID 24816253
• BACKGROUNDCristescu R, Lee J, Nebozhyn M, Kim KM, Ting JC, Wong SS, Liu J, Yue YG, Wang J, Yu K, Ye XS, Do IG, Liu S, Gong L, Fu J, Jin JG, Choi MG, Sohn TS, Lee JH, Bae JM, Kim ST, Park SH, Sohn I, Jung SH, Tan P, Chen R, Hardwick J, Kang WK, Ayers M, Hongyue D, Reinhard C, Loboda A, Kim S, Aggarwal A. Molecular analysis of gastric cancer identifies subtypes associated with distinct clinical outcomes. Nat Med. 2015 May;21(5):449-56. doi: 10.1038/nm.3850. Epub 2015 Apr 20. PMID 25894828
• BACKGROUNDCancer Genome Atlas Research Network. Comprehensive molecular characterization of gastric adenocarcinoma. Nature. 2014 Sep 11;513(7517):202-9. doi: 10.1038/nature13480. Epub 2014 Jul 23. PMID 25079317