Association Between Hepatitis C Virus Infection and Hematologic and Thyroid Cancers

This study has been completed.
Information provided by:
National Institutes of Health Clinical Center (CC) Identifier:
First received: June 19, 2006
Last updated: September 26, 2015
Last verified: December 2011

This study will investigate the possible relationship between infection with hepatitis C virus (HCV) and the development of certain hematologic cancers (Non-Hodgkin's lymphoma, Hodgkin's lymphoma, chronic lymphocytic leukemia, multiple myeloma) and thyroid cancer. HCV causes chronic hepatitis, cirrhosis, and liver cancer. It is transmitted primarily through injection drug use and transfusion of infected blood. Studies have shown that HCV may also be linked to hematologic cancers and thyroid cancer.

This retrospective study will examine medical records from veterans with and without HCV infection who previously received treatment in the Veterans Administration medical system. Data collected on each subject will include the subject's race, sex, age and era of military service, presence of liver disease or thyroiditis at their baseline clinic visit, number of inpatient visits in the past 5 years and outpatient visits in the past year, and the presence of various specified cancers. The prevalence of cancer and other conditions among HCV-infected subjects and non-HCV infected subjects at baseline and the subsequent development of the cancers of interest in these two groups will be compared and analyzed for a possible causal relationship.

Hepatitis C Virus

Study Type: Observational
Official Title: Associations of Hematologic Malignancies and Thyroid Cancer With HCV Infection Among US Military Veterans

Resource links provided by NLM:

Further study details as provided by National Institutes of Health Clinical Center (CC):

Estimated Enrollment: 815000
Study Start Date: June 2005
Estimated Study Completion Date: December 2011
Detailed Description:

Hepatitis C virus (HCV) may be a cause of hematologic malignancies and thyroid cancer. HCV infection is common among U.S. military veterans receiving care in the Veterans Administration healthcare system. The investigators propose a retrospective cohort study using VA administrative databases. A cohort of approximately 147,000 HCV-infected veterans has been identified for the period 1997-2004. Likewise, a cohort of approximately 573,000 HCV-uninfected veterans has been identified for the same period. These subjects are being evaluated for the diagnosis of hematologic malignancies, thyroid cancer, and related medical conditions as recorded in VA databases. The comparison of the prevalence and incidence of these cancers in the two cohorts will provide a test of the hypothesis that HCV infection can cause these cancers.

The investigators will also evaluate the association between HCV infection and several other medical conditions, which might be related to HCV infection, specifically: immune thrombocytopenic purpura, autoimmune hemolytic anemia, cholangiocarcinoma, cholangitis, and pancreatic cancer.


Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
  • None given.
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Please refer to this study by its identifier: NCT00342641

United States, Texas
Houston Veterans AFfairs Medical Center
Houston, Texas, United States
Sponsors and Collaborators
National Cancer Institute (NCI)
  More Information

Publications: Identifier: NCT00342641     History of Changes
Other Study ID Numbers: 999905172  05-C-N172 
Study First Received: June 19, 2006
Last Updated: September 26, 2015
Health Authority: United States: Federal Government

Keywords provided by National Institutes of Health Clinical Center (CC):
Multiple Myeloma
Cohort Study
Record linkage study
Hepatitis C

Additional relevant MeSH terms:
Hepatitis A
Hepatitis C
Thyroid Neoplasms
Digestive System Diseases
Endocrine Gland Neoplasms
Endocrine System Diseases
Enterovirus Infections
Flaviviridae Infections
Head and Neck Neoplasms
Hepatitis, Viral, Human
Liver Diseases
Neoplasms by Site
Picornaviridae Infections
RNA Virus Infections
Thyroid Diseases
Virus Diseases processed this record on May 26, 2016