Somatic Mosaicism in Twins Discordant for Childhood Cancer
Ориентир для пациента и семьи
Простыми словами
Автоматическая сводка по структурированным данным реестра. Она помогает сориентироваться, но не заменяет официальный протокол или оценку врача.
- Что изучают
- В протоколе указаны: Biospecimen collection, Questionnaire Administration.
- Кому может быть актуально
- Состояния в реестре: Pediatric Central Nervous System Tumor, Central Nervous System Tumor, Discordant Twin, Somatic Mutation. Базовые параметры: до 18 лет · Все.
- Что важно проверить
- Возраст, диагноз и пол — только базовые ориентиры. Предыдущее лечение, анализы и другие обязательные условия указаны ниже в критериях участия.
- Где проводится
- США
- Следующий шаг
- Сохраните исследование, покажите его лечащему врачу и уточните актуальный статус у исследовательского центра. Расходы, документы и поездка →
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Официальное название
Somatic Mosaicism in Twins Discordant for Childhood Cancer: a Pilot Study
Обзор
Somatic mosaicism in cancer associated genes is one potential explanation for discordance in childhood cancer that has not been fully explored to date. This pilot study will focus on twins with central nervous system (CNS) tumors who are identified through the Children's Oncology Group's Project: EveryChild (PEC) registry or volunteer.
Подробное описание
PRIMARY OBJECTIVES:
I. To conduct a descriptive study of same sex twins (MZ and DZ) discordant for childhood CNS tumors identified through the Children's Oncology Group Project:EveryChild registry.
II. To compare the prevalence of somatic mosaicism in classic cancer-associated genes in monozygotic (MZ) twins discordant for childhood brain tumors. In our pilot study, we will sequence blood and saliva DNA samples from 25 MZ twin pairs using a panel of 94 known cancer associated genes.
SECONDARY OBJECTIVES:
I. To compare the profile of mutations detected in DNA extracted from pre- and post-treatment blood samples from a subset of CNS tumor patients. The purpose of this aim is to ensure that differences in somatic mosaicism detected in twin pairs are not caused by cancer therapy.
Outline:
Twins with CNS tumors will undergo blood and saliva DNA samples with the goal is to learn more about genetic differences that may lead to CNS tumor development.
Вмешательства
- Другое Biospecimen collection
Collection of both blood and saliva samples from participants at the time of study enrollment - Другое Questionnaire Administration
The brief questionnaire will assess health history, demographics, environmental exposures, family history of cancer, and birth characteristics.
Первичные конечные точки
- Compare the prevalence of somatic mosaicism in classic cancer-associated genes in monozygotic (MZ) twins discordant for childhood brain tumors. [Срок оценки: Up to 18 months]
Вторичные конечные точки (1)
- Compare the profile of mutations detected in DNA extracted from pre- and post-treatment blood samples from a subset of CNS tumor patients. [Срок оценки: Up to 18 months]
Критерии участия
Критерии включения
- Newly diagnosed patient with CNS tumor or have recurrent disease and enrolled on APEC14B1.
- Patient must have same sex twin. Note: (history of) treatment on a COG therapeutic trial is not required.
- Patients must be diagnosed at < 19 years of age at the time of diagnosis.
- A family is eligible to participate if the twin with the CNS tumor is deceased but has a blood sample banked through APEC14B1.
- All patients and/or their parents or legal guardians must provide informed consent. Assent will be obtained for participants between the ages of 8-17 years.
- All institutional, FDA, and NCI requirements for human studies must be met.
Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.
Здоровые добровольцы: Нет
Дизайн исследования
- Модель наблюдения
- Семейное
Центры проведения
США · 1 центр
- University of Minnesota — Minneapolis
Идентификаторы
NCT: NCT06054295 · AEPI22N2