This site became the new on June 19th. Learn more.
Show more Menu IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu IMPORTANT: Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu
Give us feedback

Etiology of Anemia

This study has been terminated.
Information provided by:
National Institutes of Health Clinical Center (CC) Identifier:
First received: March 14, 2006
Last updated: April 21, 2010
Last verified: April 2010
This study looks at the causes of anemia in adults of all ages who are referred by their primary care physician.


Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: Studies in the Etiology of Anemia in an Unselected Sequential Referral Population

Resource links provided by NLM:

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

Biospecimen Retention:   Samples Without DNA
Bone marrow aspirate, urine, blood serum

Estimated Enrollment: 300
Study Start Date: January 2006
Estimated Study Completion Date: December 2010
Estimated Primary Completion Date: December 2010 (Final data collection date for primary outcome measure)
Detailed Description:

This study is being done to determine if the range of causes of anemia changes with advancing age. The goal of this study is to apply research methods to see if causes of anemia can be determined in patients where a clear cause is not found with routine clinical testing available to all patients in physician offices.

Participants in this study will be evaluated at the NIA-ASTRA unit at Harbor Hospital in Baltimore. Testing will consist of both diagnostic and research blood and urine testing along with history and physical exam. An optional bone marrow aspirate or aspirate and biopsy may be performed if the patient permits and it is indicated for either research or clinical diagnostic purposes. All study information supporting a specific diagnosis will be provided to the patient and, at their request, to their primary care physician if specific treatment is indicated.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population

Inclusion Criteria:

  • 18 years of age or older
  • Hemoglobin (Hgb) less than 13 in males and females

Exclusion Criteria:

  • Pregnant or nursing women
  • Participation within the past six weeks in another research study which the Principal Investigator believes is incompatible with this study
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00302939

United States, Maryland
National Institute on Aging
Baltimore, Maryland, United States, 21225
Sponsors and Collaborators
National Institute on Aging (NIA)
Principal Investigator: William Ershler, MD NIA/NIH
  More Information

Responsible Party: William B. Ershler, M.D., Principle Investigator, National Institute on Aging Identifier: NCT00302939     History of Changes
Other Study ID Numbers: AG0062
Study First Received: March 14, 2006
Last Updated: April 21, 2010

Keywords provided by National Institutes of Health Clinical Center (CC):

Additional relevant MeSH terms:
Hematologic Diseases processed this record on August 21, 2017