This study is currently recruiting participants.
Number
08-DK-0004
Sponsoring Institute
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Recruitment Detail
Type: Participants currently recruited/enrolled Gender: Male & Female Min Age: 18 Years Max Age: 100 Years
Referral Letter Required
No
Population Exclusion(s)
Children
Keywords
Erythrocytes; Drug Screen; Sickle Cell Trait; Sickle Hemoglobin; Sickle Cell Disease; Natural History
Recruitment Keyword(s)
None
Condition(s)
Sickle Cell Trait; Sickle Cell Disease; Sickle Cell Anemia
Investigational Drug(s)
Investigational Device(s)
Intervention(s)
Supporting Site
National Institute of Diabetes and Digestive and Kidney Diseases
Volunteers must be at least 18 years of old. Samples will be taken both from healthy volunteers and from volunteers who have unique red blood cell features that are related to sickle cell disease. Candidates will be screened with a medical history.
During the study, participants will undergo a one- to two-hour outpatient procedure at the National Institutes of Health Clinical Center. Once researchers have explained the study and obtained the participant s consent, participants will donate 8 cc (approximately 2 teaspoons) of blood.
Because repeat testing helps researchers validate study findings, participants who have the unique red blood cell features mentioned above may also be asked if they are willing to return and donate another 2 cc to 8 cc of blood for additional studies. The amount of blood drawn will not exceed 50 ml with any eight-week period for adults or 7 cc within any six-week period for children.
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INCLUSION CRITERIA: -Patients with sickle cell trait -Patients with known hemoglobinopathies involving one or two genes for sickle hemoglobin -Healthy volunteers for control experiments -Age range: adults greater than or equal to 18 years of age EXCLUSION CRITERIA: -Subjects who are unable to comprehend the investigational nature of the laboratory research are ineligible to enroll in this protocol. -As a safety precaution in handling the blood samples, patients with HIV, Hepatitis B or Hepatitis C will be excluded from the study. HIV, Hepatitis B or Hepatitits C testing will not be done under this study. Participants must be co-enrolled under another NIH protocol where the screening evaluation has been performed.
-Patients with sickle cell trait
-Patients with known hemoglobinopathies involving one or two genes for sickle hemoglobin
-Healthy volunteers for control experiments
-Age range: adults greater than or equal to 18 years of age
EXCLUSION CRITERIA:
-Subjects who are unable to comprehend the investigational nature of the laboratory research are ineligible to enroll in this protocol.
-As a safety precaution in handling the blood samples, patients with HIV, Hepatitis B or Hepatitis C will be excluded from the study. HIV, Hepatitis B or Hepatitits C testing will not be done under this study. Participants must be co-enrolled under another NIH protocol where the screening evaluation has been performed.
Principal Investigator
Referral Contact
For more information: