CfDNA in Hereditary And High-risk Malignancies 2

Официальное название

CfDNA in Hereditary And High-risk Malignancies (CHARM) 2: Evaluating the Performance of a cfDNA Blood Test for Early Cancer Detection

Обзор

The goal of this study is to understand the performance of an experimental blood test that aims to detect early tumors in patients with hereditary cancer syndromes. If this new blood test is accurate, it could be used to screen patients for cancer and allow for earlier cancer detection. The study will compare cancer detection rates between those receiving the new blood test and those receiving standard care, assess if the test leads to earlier cancer diagnosis, and evaluate its impact on patient outcomes. The study will also use questionnaires and interviews to understand how patients feel about the blood test, its incorporation into routine medical care, and perceptions of the medical value of test results. This research could lead to more effective and less invasive cancer screening for high-risk individuals.

Подробное описание

Through the CHARM Consortium (www.charmconsortium.ca), the investigators have shown that cell-free DNA (cfDNA) profiling can enable more frequent cancer surveillance from readily accessible blood collections. The investigators are now conducting a prospective, multi-center, randomized control trial of cfDNA testing of 1,000 HCS carriers from across Canada to 1) compare cancer detection rates with and without cfDNA testing, 2) assess cancer stage shift and clinical impact reducing mortality and morbidity cancers, and 3) assess impact of access to cfDNA results on patients' quality of life and psychological distress.

Вмешательства

• Диагностический тест Cell-free DNA analysis
  Analysis of cell-free DNA in blood plasma will involve targeted sequencing of key cancer-related genes, cell-free methylated DNA immunoprecipitation and high-throughput sequencing (cfMeDIP-seq), and shallow whole genome sequencing (sWGS).

Первичные конечные точки

• Determine the cancer detection rate of the cfDNA sequencing assay in patients with HCS. [Срок оценки: 4 years from enrollment in the study.]

Вторичные конечные точки (5)

• To assess the time to cancer diagnosis using cfDNA sequencing compared to controls. [Срок оценки: 4 years from enrollment in the study.]
• To assess the detection rate of cancers with no standard-of-care screening available using cfDNA sequencing. [Срок оценки: 4 years from enrollment in the study.]
• Assess the impact of tri-annual cfDNA testing on participant cancer worry. [Срок оценки: 4 years from enrollment in the study.]
• Assess the impact of tri-annual cfDNA testing on cancer risk perception. [Срок оценки: 4 years from enrollment in the study.]
• Assess the impact of tri-annual cfDNA testing on cancer anxiety and depression. [Срок оценки: 4 years from enrollment in the study.]

Критерии участия

Критерии включения

• Patients with a confirmed diagnosis of hereditary breast and ovarian cancer (HBOC), Lynch Syndrome (LS), Neurofibromatosis type I (NF1), Li-Fraumeni Syndrome (LFS), PALB2, and Hereditary Diffuse Gastric Cancer (HDGC), (i.e., patients with an identified pathogenic variant in the respective cancer predisposition gene, or patients with uninformative genetic testing but with a family history suggestive of the cancer predisposition syndrome).
• Patients must be receiving standard-of-care clinical assessment for cancer by a managing physician under a provincial screening program or cancer surveillance protocol.
• All patients must have signed and dated an informed consent form for this study.

Критерии исключения

• Patients must not have a personal history of cancer diagnosed and treated within 3 years prior to the expected first sample collection date for this study. If a patient has a personal history of cancer, treatment must have been completed successfully at least 3 years prior to first study sample collection.
• Patients diagnosed more than 3 years prior to the expected first sample collection date, but never been treated for the cancer.
• Patients undergoing investigations for a clinical suspicion of cancer.
• Patients who are not able to comply with the protocol (i.e., tri-annual blood sample collection if randomized into the experimental cohort).

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Нет

Дизайн исследования

Модель наблюдения

Случай-контроль

Центры проведения

Канада · 8 центров

• BC Cancer Agency — Vancouver
• Eastern Health — St. John's
• IWK Health Centre — Halifax
• The Hospital for Sick Children — Toronto
• Sinai Health System — Toronto
• University Health Network — Toronto
• Women's College Hospital — Toronto
• Jewish General Hospital — Montreal

Публикации

• Farncombe KM, Wong D, Norman ML, Oldfield LE, Sobotka JA, Basik M, Bombard Y, Carile V, Dawson L, Foulkes WD, Malkin D, Karsan A, Parkin P, Penney LS, Pollett A, Schrader KA, Pugh TJ, Kim RH; CHARM consortium. Current and new frontiers in hereditary cancer surveillance: Opportunities for liquid biopsy. Am J Hum Genet. 2023 Oct 5;110(10):1616-1627. doi: 10.1016/j.ajhg.2023.08.014. PMID 37802042

Идентификаторы

NCT: NCT06726642 · 23-5766

Первоисточники (государственные реестры)

• ClinicalTrials.gov (NIH, США)

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