Screening for Hematology Branch Protocols
This study allows the evaluation of subjects in order to determine their ability to safely participate in other active research studies. After subjects complete the screening process, they will be offered the opportunity to participate in an active research study, or if no appropriate studies are available information and recommendations will be provided for other treatment options.
Ask AI to explain this studyKey things to know
This describes the study’s primary purpose.
The study team can explain what participation involves.
These are broad labels—not an eligibility decision.
Checked against the public recordLast updated Oct 19, 2026 · Source: ClinicalTrials.gov
Participation is limited to people invited by the study team.
Observational
Locations may change over time.
Study sponsor
What this study is about
- Purpose
- Not specified
- Study type
- Observational
- Phase
- Not applicable
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
- Interventions being studied
- Not specified
How this study is categorized
These labels come from structured fields and exact terms in the public record.
Who may be able to participate
The sponsor separates these requirements into two groups. You do not need to interpret them alone—use them to guide a conversation with the study team.
Subjects will be entered on this protocol at the time of their first visit to the NIH Clinical Center outpatient clinic or inpatient service if: The subject carries the diagnosis of a disorder for which the NHLBI has an active research protocol, and based on information received from an outside physician, he/she appears to meet at least preliminary eligibility criteria for that protocol OR The subject is a donor for a subject for whom the NHLBI has an active stem cell transplant protocol and based on information received from an outside physician, he/she appears to meet preliminary eligibility as a donor OR The subject is a normal volunteer for whom the NHLBI has an active study recruiting healthy normal volunteers and he/she appears to meet preliminary eligibility as a normal volunteer Age \>= 2 and Weight \>12 kg (healthy volunteers age \>=8) The subject, the subject's guardian (if the subject is a minor), or the subject's legally authorized representative (LAR) is capable of informed consent, and willing to sign the consent form after initial counseling by clinical staff. Separate consent forms for all interventional or surgical procedures will be obtained after explanation of the specific procedure.
All subjects not fulfilling the inclusion criteria will be considered ineligible.
Important: This is the sponsor’s public criteria, not a determination of eligibility. The study team must review your individual situation.
U.S. locations
- National Institutes of Health Clinical CenterBethesda, Maryland
Source and freshness
Processed from ClinicalTrials.gov. Last public update: Oct 19, 2026. Always confirm current availability with the study team.