NCT00442195

Brief Summary

The Hematology Branch of the National Heart, Lung, and Blood Institute is doing a variety of laboratory research experiments that require blood and tissue samples from healthy volunteers. This protocol provides a mechanism for collecting these tissue samples. Research includes studies of normal and abnormal formation of blood cells, viral blood diseases, the role of the immune system in marrow failure and genetic risk factors for aplastic anemia. Healthy normal volunteers 8 years of age and older may be eligible for this study. Samples are collected as follows:

  • Blood samples: Participants 8 years of age and older donate up to 4 tablespoons of blood, which is obtained from a needle placed in an arm vein.
  • Participants 8 years of age and older donate a buccal mucosa sample (cells from the inside of the cheek). The inside of the cheek is scraped gently with a nylon brush.
  • Participants 18 years of age and older donate a bone marrow sample. The bone marrow is obtained from the hip bone. The skin over the area is wiped clean with alcohol and iodine, and then a local anesthetic is injected under the skin and also into the bone. When the area is numb, a bone marrow aspiration needle is introduced through the bone surface into the marrow. The marrow cells are collected using a syringe connected to the needle.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,000

participants targeted

Target at P75+ for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 28, 2007

Completed
1 day until next milestone

First Posted

Study publicly available on registry

March 1, 2007

Completed
2 days until next milestone

Study Start

First participant enrolled

March 3, 2007

Completed
Last Updated

May 22, 2026

Status Verified

December 4, 2025

First QC Date

February 28, 2007

Last Update Submit

May 21, 2026

Conditions

Keywords

Tissue ProcurementSample CollectionBiologic SamplesLaboratory Research SpecimensNatural History

Outcome Measures

Primary Outcomes (1)

  • To obtain blood, bone marrow, and skin punch biopsy samples and/or buccal mucosa samples from subjects seeking to participate as healthy volunteers in NIH laboratory research studies.

    Ongoing

Study Arms (1)

1

Healthy Volunteers

Eligibility Criteria

Age8 Years - 99 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Healthy Volunteers

You may qualify if:

  • Self-declared healthy volunteer (for blood and buccal mucosa sample donors).
  • Be healthy, as determined by Principal Investigator or designee based on recent (\<3 months) history, physical and laboratory results (for bone marrow and skin tissue sample donors).
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  • Age 8 years and older (no upper limit) for blood and buccal mucosa sampling.
  • Ages 18 years or older (no upper limit) for bone marrow or skin tissue sampling.

You may not qualify if:

  • Unable to comprehend the investigational nature of the protocol participation.
  • CBC determined outside expected normal ranges for the subject (bone marrow and skin tissue donors only).
  • Pregnancy
  • Age less than 18 years for skin tissue sampling, bone marrow aspirate and biopsy.
  • Off campus volunteers for skin tissue sampling bone marrow aspirate and biopsy.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Institutes of Health Clinical Center

Bethesda, Maryland, 20892, United States

RECRUITING

Related Publications (1)

  • Traba J, Kwarteng-Siaw M, Okoli TC, Li J, Huffstutler RD, Bray A, Waclawiw MA, Han K, Pelletier M, Sauve AA, Siegel RM, Sack MN. Fasting and refeeding differentially regulate NLRP3 inflammasome activation in human subjects. J Clin Invest. 2015 Nov 3;125(12):4592-600. doi: 10.1172/JCI83260.

Related Links

Study Officials

  • Neal S Young, M.D.

    National Heart, Lung, and Blood Institute (NHLBI)

    PRINCIPAL INVESTIGATOR

Central Study Contacts

OPR Office of Patient Recruitment

CONTACT

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
PROSPECTIVE
Sponsor Type
NIH
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 28, 2007

First Posted

March 1, 2007

Study Start

March 3, 2007

Last Updated

May 22, 2026

Record last verified: 2025-12-04

Locations