RASopathy Biorepository
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ClinicalTrials.gov Identifier: NCT04395495 |
Recruitment Status :
Recruiting
First Posted : May 20, 2020
Last Update Posted : March 11, 2022
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Condition or disease |
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RAS Mutation Neurofibromatosis 1 Noonan Syndrome Noonan Syndrome With Multiple Lentigines Noonan Neurofibromatosis Syndrome Cardiofaciocutaneous Syndrome Costello Syndrome Legius Syndrome Smith-Kingsmore Syndrome MTOR Gene Mutation GATOR-1 Gene Mutation SYNGAP1-Related Intellectual Disability DLG4 MAPK1 Gene Mutation |
Patients who are being evaluated for a RASopathy may have overlapping features, but the disorders individually can be exceedingly rare and many are not yet well characterized. Additionally, available clinical testing is not always diagnostic in this group of patients. The investigators propose to study disorders across the RAS/MAPK pathway, identifying both commonalities and differences, under one unified ongoing research protocol. The investigators propose:
- To investigate the metabolic and molecular basis of established and suspected RASopathies.
- Collect specimens derived from blood, buccal cells, sputum, urine, bone marrow, tumor tissue and residual specimens, including but not limited to pleural fluid, ascetic fluid, chyle, skin, lung, lymphatic or renal tissue and/or bronchoalveolar lavage fluid, tissue specimens, and/or cells that are left over from clinical procedures from enrolled patients for research purposes only.
- Non-invasive or minimally invasive procedures to collect tissues for research purposes only, such as saliva, skin, or blood samples are also allowed. The collection of all samples from minor subjects will be done only if it is safe for the participant. Clinical studies will take precedence over research procedures.
- Collect demographic information, medical history, and clinical test results to create a longitudinal research database of participants with suspected or diagnosed RASopathies. Participants will also complete surveys to be included in the research database (see "Research Database" section for details).
- Provide a facility for long-term storage of bio-specimens and clinical data from participants with suspected or diagnosed RASopathies and their unaffected relatives.
Study Type : | Observational [Patient Registry] |
Estimated Enrollment : | 1000 participants |
Observational Model: | Cohort |
Time Perspective: | Prospective |
Target Follow-Up Duration: | 50 Years |
Official Title: | Investigation Into the Natural History and Metabolic and Molecular Basis of RASopathies. |
Actual Study Start Date : | June 27, 2017 |
Estimated Primary Completion Date : | December 2065 |
Estimated Study Completion Date : | December 2065 |

Group/Cohort |
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Neurofibromatosis 1 (NF1)
Individuals with a confirmed or suspected diagnosis of Neurofibromatosis Type 1 (NF1). Diagnosis may be made clinically and/or confirmed through genetic testing. Clinical (non-genetic) diagnosis requires that individuals meet the National Institute of Health's (NIH) clinical diagnostic criteria for NF1.
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Noonan Syndrome
Individuals with a confirmed or suspected diagnosis of Noonan Syndrome. Diagnosis may be made clinically and/or confirmed through genetic testing.
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Noonan Syndrome with Multiple Lentigines
Individuals with a confirmed or suspected diagnosis of Noonan Syndrome with Multiple Lentigines. Diagnosis may be made clinically and/or confirmed through genetic testing.
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Noonan Neurofibromatosis Syndrome
Individuals with a confirmed or suspected diagnosis of Noonan Neurofibromatosis Syndrome. Diagnosis may be made clinically and/or confirmed through genetic testing.
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Cardiofaciocutaneous Syndrome
Individuals with a confirmed or suspected diagnosis of Cardiofaciocutaneous Syndrome. Diagnosis may be made clinically and/or confirmed through genetic testing.
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Costello Syndrome
Individuals with a confirmed or suspected diagnosis of Costello Syndrome. Diagnosis may be made clinically and/or confirmed through genetic testing.
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Legius Syndrome
Individuals with a confirmed or suspected diagnosis of Legius Syndrome. Diagnosis may be made clinically and/or confirmed through genetic testing.
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Smith-Kingsmore Syndrome
Individuals with a confirmed or suspected diagnosis of Smith-Kingsmore Syndrome. Diagnosis may be made clinically and/or confirmed through genetic testing.
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GATOR-1 Mutation
Individuals with a suspected or known mutation of GATOR-1.
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SYNGAP1-Related Intellectual Disability
Individuals with a suspected or known mutation of SYNGAP1.
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DLG4 Mutation
Individuals with a suspected or known mutation of DLG4.
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MAPK1 Gene Mutation
Individuals with a suspected or known mutation of MAPK1.
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MTOR Gene Mutation
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RAS Mutation
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- Collection of biospecimen [ Time Frame: 50 years ]Collect specimens derived from blood, buccal cells, sputum, urine, bone marrow, tumor tissue and residual specimens, including but not limited to pleural fluid, ascetic fluid, chyle, skin, lung, lymphatic or renal tissue and/or bronchoalveolar lavage fluid, tissue specimens, and/or cells that are left over from clinical procedures from enrolled patients for research purposes only.
- Collection of medical history [ Time Frame: 50 years ]Collect demographic information, medical history, and clinical test results to create a longitudinal research database of participants with suspected or diagnosed RASopathies. Participants will also complete surveys to be included in the research database (see "Research Database" section for details).
- Release of Specimens and Clinical Data to Other Investigators for use in RASopathy Research [ Time Frame: 50 years ]Release of fresh or frozen specimens and clinical data to both CCHMC and external investigators. Applications for use of bio-specimen and/or data must be approved by the Repository Use Committee through the completion of a specimen request form. Among other data, the specimen request form will require information concerning: Principal Investigator, funding sources, a research synopsis, Institutional Review Board (IRB) approval of the research project, and details about the required samples. At the time a de-identified sample is requested, the requesting investigator may also request de-identified clinical data if needed.
Biospecimen Retention: Samples With DNA

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Ages Eligible for Study: | Child, Adult, Older Adult |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Sampling Method: | Non-Probability Sample |
Inclusion Criteria:
- Patients with a suspected or known diagnosis of any of the group of disorders known as RASopathies (e.g., Neurofibromatosis, Costello Syndrome, Noonan Syndrome). Diagnosis may be made clinically and/or confirmed through genetic testing.
- Unaffected relatives of patients with a suspected or known diagnosis of any of the group of disorders known as RASopathies.
Exclusion Criteria:
- Individuals who do not have a suspected or definite diagnosis of a RASopathy.
- Individuals who do not have a relative with a suspected or definite diagnosis of a RASopathy.
- Patients who do not have the ability/capacity to undergo the informed consent process OR whose parent/legal guardian is unable to undergo the informed consent process.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04395495
Contact: Lindsey Aschbacher-Smith, MS | 513-803-0077 | Lindsey.Aschbacher-Smith@cchmc.org | |
Contact: Laurie Bailey, MS | 513-636-4507 | Laurie.Bailey@cchmc.org |
United States, Ohio | |
Cincinnati Children's Hospital Medical Center | Recruiting |
Cincinnati, Ohio, United States, 45229 | |
Contact: Lindsey Aschbacher-Smith, MS 513-803-0077 Lindsey.Aschbacher-Smith@cchmc.org | |
Contact: Laurie Bailey, MS (513) 636-4507 laurie.bailey@cchmc.org | |
Principal Investigator: Carlos E Prada, MD |
Principal Investigator: | Kathryn N Weaver, MD | Children's Hospital Medical Center, Cincinnati |
Documents provided by Children's Hospital Medical Center, Cincinnati:
Responsible Party: | Children's Hospital Medical Center, Cincinnati |
ClinicalTrials.gov Identifier: | NCT04395495 |
Other Study ID Numbers: |
2016-7017 |
First Posted: | May 20, 2020 Key Record Dates |
Last Update Posted: | March 11, 2022 |
Last Verified: | July 2021 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Neurofibromatoses Neurofibromatosis 1 Neurofibroma Noonan Syndrome Costello Syndrome LEOPARD Syndrome Intellectual Disability Lentigo Syndrome Disease Pathologic Processes Nerve Sheath Neoplasms Neoplasms, Nerve Tissue Neoplasms by Histologic Type Neoplasms |
Neoplastic Syndromes, Hereditary Neurocutaneous Syndromes Nervous System Diseases Heredodegenerative Disorders, Nervous System Neurodegenerative Diseases Genetic Diseases, Inborn Peripheral Nervous System Diseases Neuromuscular Diseases Peripheral Nervous System Neoplasms Nervous System Neoplasms Neurobehavioral Manifestations Neurologic Manifestations Neurodevelopmental Disorders Mental Disorders Melanosis |