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Síndrome de predisposición al cáncer de blastoma pleuropulmonar relacionado con DICER1: un estudio de historia natural

28 de octubre de 2026 actualizado por: National Cancer Institute (NCI)

Background:

- Pleuropulmonary blastoma (PPB) is a rare fast-growing lung tumor that is associated with other, rare tumor types. Most cases of PPB appear in children younger than 6 years of age. Recently, it has been shown that this condition can be inherited (e.g., mutation of the DICER1 gene). Researchers are studying both clinical and genetic aspects of this newly described condition. They are interested in collecting further medical history and genetic information on individuals and close relatives of individuals who have PPB or other rare associated tumors.

Objectives:

- To study individuals with a personal or a family history of pleuropulmonary blastoma (PPB) or other rare tumors that can be associated with PPB (e.g., cystic nephroma, nasal chondromesenchymal hamartoma, ovarian Sertoli-Leydig cell tumors, ocular medulloepithelioma).

Eligibility:

  • Individuals who have been diagnosed with PPB and/or PPB-related tumors.
  • Close blood relatives (e.g., parents, siblings, grandparents) of individuals who have been diagnosed with PPB and/or PPB-related tumors.

Design:

  • Interested participants can enroll or inquire about this study by calling 1-800-518-8474.
  • Participants will be asked to complete family history and medical history questionnaires. They will complete the questionnaire if they are at least 18 years of age, or another person will complete the questionnaire if the key family member is too young to do so on his or her own.
  • Participants will be asked to sign a medical record release form to allow researchers to examine detailed medical history information.
  • Participants may be asked to have a physical examination and imaging studies, provide blood and saliva samples, or provide tumor tissue from prior biopsies or cancer surgeries.
  • Annually, participants will update the family history and individual information questionnaires to document important changes in medical history, and will also update the medical record release form. Participants may be asked to provide additional cheek lining cells and/or blood samples, as well as tumor tissue from any new or planned biopsies or tumor surgeries.
  • Treatment will not be provided as part of this protocol.

Descripción general del estudio

Descripción detallada

Study Description:

Multidisciplinary natural history study with self-administered questionnaires, clinical/epidemiologic/genetic evaluations, clinical and research laboratory tests, review of medical records, cancer surveillance, and biospecimen acquisition. In 2009, Hill and colleagues identified heterozygous germline disease-associated variants in DICER1, a gene which encodes a crucial component of the microRNA processing machinery, in patients with familial pleuropulmonary blastoma (PPB). This disorder represents the first reported cancer predisposition syndrome that is due to altered microRNA biogenesis, and its discovery presents a unique and extraordinary opportunity for CGB and DCEG to play a substantial role in the development of this new area, one which is virtually certain to have etiologic ramifications far beyond those related to PPB itself.

Objectives:

  1. To establish a cohort of patients with PPB and/or specific neoplasms of the DICER1-related tumor risks (cystic nephroma, nasal chondromesenchymal hamartoma, ovarian Sertoli-Leydig cell and other sex cord-stromal tumors, ocular medulloepithelioma, Wilms tumor, embryonal rhabdomyosarcoma, pineoblastoma, others to be defined), in order to determine the frequency of DICER1 germline disease-associated variants in these patients and their family members. This will also allow us to identify DICER1 disease-associated variant-negative patients who will be crucial for future gene discovery efforts.
  2. To characterize the clinical phenotype of, and study the incident and prevalent cancer rates in, these patients and their family members, for all cancers combined, and for each type of cancer, and to identify and confirm the specific types of cancer and benign neoplasms associated with this disorder.
  3. To identify differences between patients with a germline disease-associated variant in DICER1 (or another gene(s) from this pathway) who do develop cancer and those who do not develop cancer. These differences may include genotype/phenotype/cancer susceptibility differences, modifier genes (gene-gene interactions) and environmental risk factors (gene-environment interactions). The latter two may be informative for modification of cancer risk in the general population.
  4. To develop evidence-based management guidelines for cancer prevention and risk-reduction strategies for patients with PPB and other DICER1-related tumors and their family members prior to and after obtaining answers to the questions/objectives above.
  5. To evaluate various parameters related to psychosocial and behavioral issues resulting from being a member of a family at increased risk of PPB and other DICER1-related tumors.
  6. To create a biospecimen repository of carefully annotated tissue samples for use in subsequent etiologically-oriented translational research projects. These samples comprise an invaluable resource for current and future studies related to the etiology of, and outcomes following, the various neoplasms that are now known, or later found to be, part of the DICER1-related tumor risk.

Endpoints:

Primary endpoints: include all cancers, with specific attention to those currently thought to be part of the DICER1-related tumor risk.

Secondary endpoints: include non-malignant health issues.

Tipo de estudio

De observación

Inscripción (Estimado)

1500

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Estudio Contacto

Copia de seguridad de contactos de estudio

  • Nombre: Douglas R Stewart, M.D.
  • Número de teléfono: (240) 276-7238
  • Correo electrónico: drstewart@mail.nih.gov

Ubicaciones de estudio

    • Maryland
      • Bethesda, Maryland, Estados Unidos, 20892
        • Reclutamiento
        • National Institutes of Health Clinical Center
        • Contacto:
          • For more information at the NIH Clinical Center contact National Cancer Institute Referral Office
          • Número de teléfono: 888-624-1937
      • Rockville, Maryland, Estados Unidos, 20850
        • Reclutamiento
        • National Cancer Institute - Shady Grove
        • Contacto:

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

1 mes a 99 años (Niño, Adulto, Adulto Mayor)

Acepta Voluntarios Saludables

Sí

Géneros elegibles para el estudio

Todos

Método de muestreo

Muestra no probabilística

Población de estudio

A cohort of patients with PPB and/or specific neoplasms of the PPB spectrum (cystic nephroma, nasal chondromesenchymal hamartoma, ovarian Sertoli-Leydig cell and other sex cord-stromal tumors, ocular medulloepithelioma, Wilms tumor, embryonal rhabdomyosarcoma, pineoblastoma, others to be defined)

Descripción

  • INCLUSION CRITERIA:

All participants who meet the eligibility criteria outlined below will be eligible for inclusion in this study regardless of their race, gender, ethnicity, or age.

  • Affected individual is defined as:

    • an individual with histologically-confirmed PPB and/or other DICER1-related tumors
    • an individual with a known or suspected DICER1 disease-associated variant
    • an individual from the general population with one or more of the unique tumors of the types associated with DICER1 including (but not exclusively), PPB, cystic nephroma, ovarian Sertoli-Leydig cell and other sex cord-stromal tumors, ocular medulloepithelioma, nasal chondromesenchymal hamartoma, Wilms tumor, embryonal rhabdomyosarcoma, pineoblastoma, pituitary blastoma, ovarian sarcoma, CNS sarcoma and/or thyroid cancer - regardless of their family history. Additional DICER1-related neoplasms may be identified in the future, and they will be added to the protocol as needed.
  • Unaffected individual is defined as:

    • a family member (such as parents, siblings, children, or extended family) of an affected participant without a known or suspected DICER1 disease-associated variant or condition and they will be controls.

Other inclusion criteria include:

  • All types and amounts of prior therapies are allowed.
  • There is no age restriction.
  • There is no restriction related to organ and marrow function.
  • Ability of the individual or their legal guardian or appropriate surrogate to understand, and their willingness to provide informed consent.

Neonates of affected individuals will be included in the Field Cohort and be eligible for genetic counseling, education, and testing, if indicated and consented by a parent/legal guardian/LAR.

This is entirely a function of meeting the inclusion criteria and not being excluded by the exclusion criteria.

In some instances, patients with histologically-confirmed PPB and/or another neoplasm within the DICER1-related tumor risk and their families will be referred to the Clinical Genetics Branch (CGB) by the International Pleuropulmonary Blastoma (PPB) / DICER1 Registry (IPPBR), provided that the family has previously or currently indicated a desire to be notified of such research opportunities. In non IPPBR-cases, the diagnosis will be confirmed by reviewing relevant medical records and relevant surgical pathology material.

EXCLUSION CRITERIA:

Individuals and families referred for evaluation in whom reported diagnoses are not verifiable.

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Modelos observacionales: FAMILY_BASED
  • Perspectivas temporales: OTHER

Cohortes e Intervenciones

Grupo / Cohorte
Controls

People without pathogenic DICER1 germline variation

DICER1 (cases)

People with pathogenic DICER1 germline variation or history of DICER1-associated tumors

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Psychosocial and Behavioral Issues
Periodo de tiempo: On-going

To evaluate various parameters related to psychosocial and behavioral issues resulting from being a member of a family at increased risk of PPB.

On-going
Management Guidelines & Risk-reduction Strategies
Periodo de tiempo: On-going

To develop evidence-based management guidelines for cancer prevention and risk-reduction strategies for PPB patients and their family members prior to and after obtaining answers to the questions/objectives above.

On-going
Genetic & Environmental Interactions
Periodo de tiempo: On-going

To identify differences between patients with a germline mutation in DICER1 (or another gene(s) from this pathway) who do develop cancer and those who do not develop cancer. These differences may include genotype/phenotype/cancer susceptibility differences, modifier genes (gene-gene interactions) and environmental risk factors (gene-environment interactions). The latter two may be informative for modification of cancer risk in the general population.

On-going
DICER1-Related Pleuropulmonary Blastoma Cancer Predisposition Syndrome
Periodo de tiempo: On-going

To establish a cohort of patients with PPB and/or specific neoplasms of the PPB spectrum (cystic nephroma, nasal chondromesenchymal hamartoma, ovarian Sertoli-Leydig cell and other sex cord-stromal tumors, ocular medulloepithelioma, Wilms tumor, embryonal rhabdomyosarcoma, pineoblastoma, others to be defined), in order to determine the frequency of DICER1 germline mutations in these patients and their family members. This will also allow us to identify DICER1 mutation-negative patients who will be crucial for future gene discovery efforts.

On-going
Clinical Phenotype
Periodo de tiempo: On-going

To characterize the clinical phenotype of, and study the incident and prevalent cancer rates in, these patients and their family members, for all cancers combined, and for each type of cancer, and to identify and confirm the specific types of cancer and benign neoplasms associated with this disorder.

On-going
Biospecimen Repository
Periodo de tiempo: On-going

To create a biospecimen repository of carefully-annotated tissue samples for use in subsequent etiologically-oriented translational research projects. These samples comprise an invaluable resource for current and future studies related to the etiology of, and outcomes following, the various neoplasms that are now known, or later found to be, part of the PPB syndrome.

On-going

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Non-tumor phenotypes
Periodo de tiempo: On-going

Secondary endpoints will include characterization of other known or suspected DICER1-related non-tumor health issues such as dysmorphic features, thyroiditis, dental problems, dysmorphology, ophthalmologic abnormalities and pneumothorax. Characterization of individuals and families with DICER1-related non-tumor phenotypes permits identification of people at risk.

On-going

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Investigadores

  • Investigador principal: Douglas R Stewart, M.D., National Cancer Institute (NCI)

Publicaciones y enlaces útiles

La persona responsable de ingresar información sobre el estudio proporciona voluntariamente estas publicaciones. Estos pueden ser sobre cualquier cosa relacionada con el estudio.

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Actual)

13 de febrero de 2011

Fechas de registro del estudio

Enviado por primera vez

23 de noviembre de 2010

Primero enviado que cumplió con los criterios de control de calidad

23 de noviembre de 2010

Publicado por primera vez (Estimado)

24 de noviembre de 2010

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

29 de octubre de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

28 de octubre de 2026

Última verificación

27 de octubre de 2026

Más información

Términos relacionados con este estudio

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

No

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

No

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