NCT02388100|CompletedDMC
The GRADE Capillary Blood Collection Pilot Study
The Glycemia Reduction Approaches in Diabetes: A Comparative Effectiveness Study (GRADE Study) Capillary Blood Collection: A Pilot Study
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The Glycemia Reduction Approaches in Diabetes: A Comparative Effectiveness Study (GRADE Study) Capillary Blood Collection: A Pilot Study
Sponsor study identifier
Secondary identifiers
observational
70
1 country
5
Study Start
March 2015
Date type not reportedThis date has not been verified as actual or estimated.
Primary Completion
August 2016
Actual (reported)Study Completion
August 2016
Actual (reported)This pilot study is planned to validate the comparability of HbA1c results obtained from whole blood collection via venous phlebotomy versus a capillary collection of whole blood. The participant will self-collect capillary blood into HbA1c prep vials containing a buffer; these prep vials will be sent to the CBL at ambient temperature via US Postal System (USPS) mail. The feasibility of self-collection of these capillary samples by GRADE participants will also be evaluated.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
August 2016
Actual (reported)Click on a node to explore related trials.
Some registry-reported names shown below are not yet linked in this graph.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
March 2015
Date type not reportedThis date has not been verified as actual or estimated.
March 6, 2015
Actual (reported)March 13, 2015
Actual (reported)August 2016
Actual (reported)August 2016
Actual (reported)HbA1c obtained from venous versus capillary measurements at one point in time for each participant.
Cross sectional
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
All GRADE study participants scheduled for a follow-up visit at selected GRADE clinical sites.
Southwestern American Indian Center
Phoenix, Arizona, United States
University of Colorado
Denver, Colorado, United States
Pacific Health Research and Education Institute (VA Pacific Islands)
Honolulu, Hawaii, United States
Pennington Biomedical Research Center
Baton Rouge, Louisiana, United States
International Diabetes Center
Minneapolis, Minnesota, United States
Nathan DM, Krause-Steinrauf H, Braffett BH, Arends VL, Younes N, McGee P, Lund C, Johnson M, Lorenzi G, Gao X, Steffes MW, Lachin JM; GRADE Research Group; DCCT/EDIC Research Group. Comparison of central laboratory HbA1c measurements obtained from a capillary collection versus a standard venous whole blood collection in the GRADE and EDIC studies. PLoS One. 2021 Nov 15;16(11):e0257154. doi: 10.1371/journal.pone.0257154. eCollection 2021.
David Nathan, MD
Massachusetts General Hospital
70 participants (actual enrollment reported by the registry).
First Submitted
March 6, 2015
First Posted
March 13, 2015
Study Start
March 2015
Date type not reportedThis date has not been verified as actual or estimated.
Multi-clinic Action Trial to Control Hyperglycemia and Hypertension
Contact the study team to confirm eligibility.
Primary Completion
August 2016
Actual (reported)Study Completion
August 2016
Actual (reported)Last Updated
November 15, 2024
Record last verified: 2024-11
Download the complete ClinicalTrials.gov record imported by Syfrah, including fields not shown in this page. The registry may contain a newer revision.
Source: ClinicalTrials.gov.
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