Genetic Causes of Neuroendocrine Tumors in Mexican Adults
Studies gene changes in blood and tumor samples from adults with neuroendocrine tumors.
Plain-language title generated from the registry record
Registry title: Genetic Bases of Neuroendocrine Neoplasms in Mexican Patients
Key facts
- Where
- Mexico City, MexicoSee the 3 sites
Where in Mexico
- Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro SocialMexico City, MexicoTaking people
- Instituto Nacional de Ciencias Médicas y Nutrición Salvador ZubiránMexico City, MexicoTaking people
- Red de Apoyo a la Investigación, Coordinación de la Investigación Científica, Universidad Nacional Autónoma de MéxicoMexico City, MexicoTaking people
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Trial details
- Who runs it
- Universidad Nacional Autonoma de Mexico
- Trial code
- NCT06523582
- Record updated
- 26 July 2024
- Original description
Neuroendocrine neoplasms (NENs) are a heterogeneous group of lesions derived from cells with the ability to produce hormones that may arise from multiple different organs. Their clinical behavior is quite variable, encompassing both benign lesions and aggressive tumors that invade surrounding and/or distant structures. NENs may also cause serious morbidity due to hormone oversecretion. NENs are among the most frequently inherited human tumors, presenting either isolated or as part of syndromes in which a single patient or family develops multiple tumors. There are also non-inherited changes in the genetic information of the tumor cells that are potential targets for treatment. Both inherited and non-inherited DNA defects can be identified using modern routine genetic tests which, unfortunately, are not widely available in Mexico.Read full original descriptionShow less
Genetic Bases of Neuroendocrine Neoplasms in Mexican Patients
Neuroendocrine neoplasms (NENs) are a heterogeneous group of lesions derived from cells with the ability to produce hormones that may arise from multiple different organs. Their clinical behavior is quite variable, encompassing both benign lesions and aggressive tumors that invade surrounding and/or distant structures. NENs may also cause serious morbidity due to hormone oversecretion. NENs are among the most frequently inherited human tumors, presenting either isolated or as part of syndromes in which a single patient or family develops multiple tumors. There are also non-inherited changes in the genetic information of the tumor cells that are potential targets for treatment. Both inherited and non-inherited DNA defects can be identified using modern routine genetic tests which, unfortunately, are not widely available in Mexico.
This project seeks to uncover the genetic defects causing NENs in a large cohort of Mexican patients, using three different methods for genetic testing. Adult individuals with various types of NENs from two reference hospitals in Mexico City will be invited to participate. After completing informed consent, blood and, if possible, tissue samples will be obtained from all participants. Clinical details, laboratory results, imaging studies, and histopathological data at disease presentation will be retrieved.
An initial screening will be performed by analyzing changes in the sequence of multiple genes that have been associated with the occurrence of NENs. In cases with negative screening, a specific method to assess changes in the number of copies of the same genes will also be employed. Finally, sequences of all DNA regions encoding information required to make proteins will be obtained in selected cases. Analyses will be carried out in blood and, if available, also in tumor tissue samples from study participants. Screening of additional family members will be offered.
This project will accurately describe the repertoire of specific defects causing NENs in the study population, and will likely uncover and characterize novel genetic associations. The results will contribute for a better understanding of the alterations within and outside known driver genes that shape syndromic presentations, tumor behaviors, and inheritance patterns in individuals with NENs. These data will contribute to improve the information on the molecular bases of NENs, including alterations that can be used as therapeutic targets.
Inclusion: Adult patients with a new or previous clinical diagnosis of any of the following conditions:; Isolated NENs with sporadic presentation, including bronchopulmonary NENs, gastrointestinal NENs, medullary thyroid carcinoma, pancreatic NENs, paragangliomas, pheochromocytomas, pituitary neuroendocrine tumors, and primary hyperparathyroidism; Familial isolated NENs, including familial isolated pituitary adenoma, familial pheochromocytomas and paragangliomas, familial primary hyperparathyroidism, familial gastrointestinal stromal tumors and X-linked acrogigantism; Clinical syndromes encompassing NENs, with familial or sporadic presentation, including Carney complex, Carney-Stratakis syndrome, Carney triad, Cowden syndrome, DICER1 syndrome, Li-Fraumeni syndrome, Lynch syndrome, multiple endocrine neoplasia type 1, multiple endocrine neoplasia type 2, multiple endocrine neoplasia type 4, neurofibromatosis type 1, Pacak-Zhuang syndrome, paraganglioma, pheochromocytoma and pituitary adenoma syndrome, tuberous sclerosis complex, Von Hippel Lindau syndrome.
Exclusion: Age <18 years; Refusal to give informed consent.