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Red Cell Mass and Plasma Volume Measurements in Elderly Men and Women With Anemia

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT01011361
Recruitment Status : Completed
First Posted : November 11, 2009
Last Update Posted : March 24, 2016
Information provided by (Responsible Party):

Study Description
Brief Summary:
On the basis that the clinical consequences of seemingly trivial levels of anemia are surprisingly severe, this study investigates if hemoglobin concentration accurately represents the underlying red cell mass in elderly patients with unresolved anemia.

Condition or disease

Detailed Description:
For the study, the routine clinical measurement of hemoglobin will be compared to true red cell mass and plasma volume in elderly patients with anemia.

Study Design

Study Type : Observational
Actual Enrollment : 5 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Red Cell Mass and Plasma Volume Measurements in Elderly Men and Women With Anemia
Study Start Date : April 2009
Primary Completion Date : June 2011
Study Completion Date : June 2011

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Anemia
U.S. FDA Resources

Groups and Cohorts

Outcome Measures

Primary Outcome Measures :
  1. Red blood cell mass [ Time Frame: 1 day ]

Secondary Outcome Measures :
  1. Plasma volume measurements [ Time Frame: 1 day ]

Eligibility Criteria

Information from the National Library of Medicine

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Ages Eligible for Study:   65 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Outpatient elderly men and women (aged 65 years or older) with anemia, also enrolled in the "Anemia in the Elderly" NCT00640172 study.


  • 65 and older
  • Anemia (hemoglobin < 13 g/dL in men or < 12 g/dL in women)
  • Outpatient at either the Stanford Health Care (SHC) Medical Center or VA Palo Alto Health Care System


  • Body mass index (BMI):

    • < 18.5 kg/m2
    • > 35 kg/m2
  • Palpable splenomegaly
  • Contraindication to RBC mass/plasma volume testing
  • On any experimental pharmacologic agent in the prior 2 months
Contacts and Locations

Information from the National Library of Medicine

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): NCT01011361

United States, California
Stanford University School of Medicine
Stanford, California, United States, 94305
Sponsors and Collaborators
Stanford University
Principal Investigator: Stanley L Schrier, MD Stanford University
More Information

Responsible Party: Stanley L Schrier, Professor of Medicine (Hematology), Emeritus, Stanford University
ClinicalTrials.gov Identifier: NCT01011361     History of Changes
Other Study ID Numbers: IRB-16209
SU-07302009-3480 ( Other Identifier: Stanford University )
First Posted: November 11, 2009    Key Record Dates
Last Update Posted: March 24, 2016
Last Verified: March 2016
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

Additional relevant MeSH terms:
Hematologic Diseases