Having a Parent, Sibling, or Child with Blood Cancer Increases One’s Own Risk

Data from largest population study to date help identify at-risk individuals, could inform screening initiatives

Published on: August 08, 2019

(WASHINGTON, August 8, 2019) — New data suggest that people who have a parent, sibling, or child with blood cancer have a higher likelihood of being diagnosed with the disease. The study published online today in Blood offers the first evidence that such familial risks exist across the spectrum of hematologic malignancies.

Age of diagnosis, whether the relative is a parent, sibling, or child, and the number of affected first-degree relatives play a defining role in the relative risk of developing certain blood cancers, according to the study.

“This information improves our understanding of the causes of – and potential inherited predisposition to – blood cancers and should inform the identification and characterization of genetic risk factors for blood cancer, as well as how we best clinically manage patients and their relatives,” said Amit Sud, MD, PhD, of The Institute of Cancer Research, London, and the study’s lead author. “The results should also encourage conversations among families, clinicians, and patients about familial risk.”

While earlier studies have demonstrated the increased risk of blood cancers in first-degree relatives of affected individuals, this is the largest and most comprehensive population-based evaluation to date.

Cases with a familial link represented 4.1 percent of all blood cancer diagnoses – higher than cancers of the nervous system, kidney and pancreas, but lower than those of the breast, colorectum, and prostate, which range from 8 to 15 percent, researchers report. Highest relative risks were seen for certain Hodgkin lymphoma (HL) subtypes, lymphoplasmacytic lymphoma, and mantle cell lymphoma. Markedly elevated familial risks were also observed for polycythemia vera, myelodysplasia and essential thrombocythemia. 

While there are currently no definitive screening initiatives for blood cancers, a 2016 revision to the World Health Organization classification of myeloid neoplasms and acute leukemia recognized familial disease as an essential component of diagnosing certain subsets of blood cancers and underscores the need to further examine and understand familial risk. Developing definitive screening protocols based on evidence is an emerging area of research.

“We hope these robust data will be used to inform guidelines on genetic testing and screening. Certainly there are a number of individuals, such as those with a relative diagnosed at a young age and or with more than one affected first-degree relatives, for whom counseling, genetic testing, and surveillance may be appropriate,” Dr. Sud said. 

The present analysis drew from 16 million people in the Swedish Family-Cancer Database, ultimately including 153,115 patients with a confirmed blood cancer and 391,131 first-degree relatives, which allowed Dr. Sud and colleagues to fully characterize familial risk across all blood cancer types. For specific blood cancers such as chronic lymphocytic leukemia (CLL), the increase in risk is dependent on the age of the affected relative; whether it is a parent, sibling, or child; and the number of affected first-degree relatives. For example, for non-Hodgkin lymphoma, HL, and CLL, the risk was higher among those who had a sibling with the disease, whereas others blood cancers were more likely to occur if a parent had been diagnosed. Generally, the familial risk was more pronounced when relatives were diagnosed at younger ages. Dr. Sud added that the analysis also has potential implications for the selection of related stem-cell donors used for the treatment of these malignancies.

In addition to its size and long follow-up, another strength of the analysis is its use of registry data for which almost all blood cancer cases in the Swedish population had been recorded. Still, researchers say the findings may not be applicable to economically developing countries that tend to have different tumor incidence rates and potentially different environmental and genetic risk factors.

The study was conducted as a collaboration between European research institutes: The Institute of Cancer Research in London, the German Cancer Research Centre in Heidelberg, and Lund University in Sweden.


Blood (www.bloodjournal.org), the most cited peer-reviewed publication in the field of hematology, is available weekly in print and online. Blood is a journal of the American Society of Hematology (ASH) (www.hematology.org), the world’s largest professional society concerned with the causes and treatment of blood disorders.

Contact:
Leah Enser, American Society of Hematology
lenser@hematology.org; 202-552-4927

Having a Parent, Sibling, or Child with Blood Cancer Increases One’s Own Risk

Having a Parent, Sibling, or Child with Blood Cancer Increases One’s Own Risk

Annual-Meeting

2 months
93 Views
Share
Want to watch this again later?
Sign in to add this video to a playlist. Login
0 0
Up Next Autoplay
What is PFS2 in Advanced NSCLC, and Should we Care_ Unique Analysis of the KEYNOTE-024 trial [720p] - OncologyTube
What is PFS2 in Advanced NSCLC, and Should we Care_ Unique Analysis of the KEYNOTE-024 trial [720p] - OncologyTube
Category: Acute Lymphoblastic Leukemia
31 Views
Stan 1 month
Patient Priorities Should be Paramount when Measuring Quality in Cancer Care According to Panelists at NCCN Policy Summit
Patient Priorities Should be Paramount when Measuring Quality in Cancer Care According to Panelists at NCCN Policy Summit
Category: Acute Lymphoblastic Leukemia
18 Views
Cancer-News 1 month
IASLC World Conference on Lung Cancer—Press Briefing Summary from Sunday, September 8th in Barcelona
IASLC World Conference on Lung Cancer—Press Briefing Summary from Sunday, September 8th in Barcelona
Category: Acute Lymphoblastic Leukemia
30 Views
Cancer-News 1 month
IPS based approach for treating virus-induced tumors
IPS based approach for treating virus-induced tumors
Category: Acute Lymphoblastic Leukemia
11 Views
Cancer-News 1 month
Pivotal New Data from Merck’s Broad Oncology Portfolio at ESMO 2019 Congress
Pivotal New Data from Merck’s Broad Oncology Portfolio at ESMO 2019 Congress
Category: Acute Lymphoblastic Leukemia
40 Views
Cancer-News 1 month
AMGEN ANNOUNCES NEW CLINICAL DATA EVALUATING NOVEL INVESTIGATIONAL KRASG12C INHIBITOR IN LARGER  PATIENT GROUP AT WCLC 2019
AMGEN ANNOUNCES NEW CLINICAL DATA EVALUATING NOVEL INVESTIGATIONAL KRASG12C INHIBITOR IN LARGER PATIENT GROUP AT WCLC 2019
Category: Acute Lymphoblastic Leukemia
26 Views
Cancer-News 1 month
Soricimed and Image Analysis Group Partner to Validate Predictive Imaging Markers for SOR-C13 Treatment Response in Solid Cancer Tumors
Soricimed and Image Analysis Group Partner to Validate Predictive Imaging Markers for SOR-C13 Treatment Response in Solid Cancer Tumors
Category: Acute Lymphoblastic Leukemia
13 Views
Cancer-News 1 month
Intraoperative Teamwork of Breast Cancer Surgeon and Pathologist Greatly Reduces Need for Second Surgery After Lumpectomy
Intraoperative Teamwork of Breast Cancer Surgeon and Pathologist Greatly Reduces Need for Second Surgery After Lumpectomy
Category: Acute Lymphoblastic Leukemia
23 Views
Cancer-News 1 month
Sysmex Inostics publishes first feasibility study of NGS-based liquid biopsy to complement early breast cancer screening by imaging
Sysmex Inostics publishes first feasibility study of NGS-based liquid biopsy to complement early breast cancer screening by imaging
Category: Acute Lymphoblastic Leukemia
24 Views
Cancer-News 1 month
Will advances in AI lead to more effective screening practices for ovarian cancer?
Will advances in AI lead to more effective screening practices for ovarian cancer?
Category: Acute Lymphoblastic Leukemia
21 Views
Cancer-News 1 month