Clinical Trials

NCT00646022 | RECRUITING

1600 participants

Natural History of Familial Carcinoid Tumor

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2008-08-25

Conditions

Carcinoid

Interventions

DRUG

No Results Yet

NCT00514254 | ACTIVE_NOT_RECRUITING

59 participants

Risk Factors for Endometrial Cancer in Black Women

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2007-07-31
Completion:: 2027-07-31

Conditions

Endometrial Cancer

Interventions

OTHER
PROCEDURE

No Results Yet

NCT00469339 | COMPLETED

498 participants

Risk Communication Within Mexican-American Families

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2007-04-27

Conditions

Breast Cancer
Diabetes
Colon Cancer
Cardiovascular Disease

Interventions

BEHAVIORAL

No Results Yet

NCT00467285 | COMPLETED

96 participants

Effect of Diabetic Medications on Bone Metabolism

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2006-10-31
Completion:: 2009-09-30

Conditions

Osteoporosis
Type 2 Diabetes Mellitus

Results Available

NCT00428987 | RECRUITING

2000 participants

Physical and Behavioral Traits of Overweight and Obese Adults

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2007-03-08

Conditions

Obesity
Healthy Volunteers

No Results Yet

NCT00342589 | COMPLETED

1015 participants

New Techniques for Using a Saline Wash as a Diagnostic Tool for Pneumocystis Pneumonia

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 1999-09-28

Conditions

Pneumocystis Infection
Infection
Pneumonia, Pneumocystis
Lung Disease, Fungal
Mycoses

No Results Yet

NCT00302146 | COMPLETED

64 participants

Positron Emission Tomography (PET) Imaging in People With Gaucher Mutations

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2006-05-23

Conditions

Parkinson Disease
Gaucher Disease

Interventions

DRUG

No Results Yet

NCT00246857 | RECRUITING

5000 participants

Screening Protocol for Genetic Diseases of Lymphocyte Homeostasis and Programmed Cell Death

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2007-02-12

Conditions

Primary Immune Deficiency

No Results Yet

NCT00128973 | RECRUITING

3500 participants

Evaluation of Patients With Immune Function Abnormalities

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2005-09-19

Conditions

Chronic Granulomatous Disease (CGD)
X-Linked Severe Combined Immune Deficiency (XSCID)
Leukocyte Adhesion Deficiency 1 (LAD)
Graft Versus Host Disease (cGvHD)

No Results Yet

NCT00097474 | COMPLETED | PHASE2

57 participants

Effects of Hydrocortisone, Melatonin, and Placebo on Jet Lag

Study Type:: INTERVENTIONAL
Last Updated:: 2026-08-13
Start Date:: 2004-12-21
Completion:: 2006-01-06

Conditions

Jet Lag

Interventions

DRUG

No Results Yet

NCT00073801 | COMPLETED

78 participants

Pelvic Pain in Women With Endometriosis

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2004-04-22

Conditions

Endometriosis
Chronic Pelvic Pain

No Results Yet

NCT00068003 | ENROLLING_BY_INVITATION

7000 participants

Harvesting Cells for Experimental Cancer Treatments

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2003-09-08

Conditions

Melanoma
Gastrointestinal Cancer
Metastatic Cancer
Breast Cancer
Non-Small Cell Lung Cancer

Interventions

DRUG

No Results Yet

NCT00067054 | RECRUITING

3000 participants

Apheresis and Specimen Collection Procedures to Obtain Plasma, Peripheral Blood Mononuclear Cells (PBMCs) and Other Specimens for Research Studies

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2003-09-10

Conditions

Sample Collection

No Results Yet

NCT00060541 | RECRUITING

5000 participants

Evaluation and Treatment of Neurosurgical Disorders

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2003-06-04

Conditions

Neurologic Disorders

Interventions

PROCEDURE

No Results Yet

NCT00055055 | COMPLETED

1056 participants

Study of Families With Twins or Siblings Discordant for Rheumatic Disorders

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2003-04-21

Conditions

Rheumatoid Arthritis
Systemic Lupus Erythematosus
Idiopathic Inflammatory Myopathies

No Results Yet

NCT00047996 | ENROLLING_BY_INVITATION

2000 participants

Blood Collection for Research Related to Certain Diseases Involving Blood Vessels

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2002-11-04

Conditions

Sickle Cell Disease

No Results Yet

NCT00044174 | COMPLETED

701 participants

Dyadic Interactions in Depressed and Non-Depressed Mothers and Their Infants

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2002-08-20

Conditions

Depression

No Results Yet

NCT00043472 | COMPLETED

40 participants

Removal of the Ovaries/Fallopian Tubes and CA-125 Screening to Reduce the Risk of Ovarian Cancer in Women at Increased Genetic Risk

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2003-07-09

Conditions

Breast Cancer
Ovarian Cancer

No Results Yet

NCT00042614 | COMPLETED

188 participants

Study of Heart Transplant Rejection

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2003-04-07

Conditions

Heart Transplantation

No Results Yet

NCT00040352 | RECRUITING

3000 participants

Clinical, Laboratory, and Epidemiologic Characterization of Individuals and Families at High Risk of Melanoma

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2002-07-01

Conditions

Melanoma
Dysplastic Nevus Syndrome

No Results Yet

NCT00039689 | RECRUITING

750 participants

Leukapheresis Procedures to Obtain Plasma and Lymphocytes for Research Studies on Antiretroviral Naive HIV-1 Research Participants

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2002-07-12

Conditions

HIV

No Results Yet

NCT00039676 | ACTIVE_NOT_RECRUITING

1836 participants

Clinical, Laboratory and Epidemiologic Characterization of Individuals and Families at High Risk of Hematologic Cancer

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2002-07-08

Conditions

Waldenstrom Macroglobulinemia
Chronic Lymphocytic Leukemia
Hodgkin Disease
NonHodgkin Lymphoma
Mixed Lymphoproliferative Disease

No Results Yet

NCT00034424 | COMPLETED

749 participants

Cause of Familial Testicular Cancer

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2003-01-13

Conditions

Testicular Cancer

No Results Yet

NCT00034216 | RECRUITING

1750 participants

Collection of Blood From Patients With Cancer

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2002-07-16

Conditions

Prostate Cancer
Breast Cancer
Colon Cancer
Lung Cancer
Liver Cancer

No Results Yet

NCT00033137 | RECRUITING

950 participants

Genetic Analysis of Birt Hogg-Dube Syndrome and Characterization of Predisposition to Kidney Cancer

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2002-05-13

Conditions

Kidney Neoplasms
Kidney Cancer
Pneumothorax
FLCN Protein, Human

No Results Yet

NCT00026884 | RECRUITING

5950 participants

Collection of Serum and Tissue Samples From Patients With Biopsy-Proved or Suspected Malignant Disease

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 1998-03-12

Conditions

Malignant Neoplasms
Hereditary Neoplastic Syndromes
Kidney Cancer
Renal Cancer
Bladder Cancer

No Results Yet

NCT00025935 | RECRUITING

2350 participants

Studies of Brain Function and Course of Illness in Pediatric Bipolar Disorder

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2002-01-01

Conditions

Mood Disorder

Interventions

DRUG

No Results Yet

NCT00013559 | COMPLETED

593 participants

Natural History Study of Smith-Magenis Syndrome

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2001-03-19

Conditions

Smith-Magenis Syndrome (SMS)

No Results Yet

NCT00006421 | COMPLETED

200 participants

Breast Imaging Studies in Women at High Genetic Risk of Breast Cancer: Annual Follow-Up Study

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 2000-10-25

Conditions

Breast Cancer

Interventions

DRUG

No Results Yet

NCT00001987 | RECRUITING

1200 participants

Genetic Studies of Insulin and Diabetes

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 1976-02-01

Conditions

Diabetes Mellitus
Severe Insulin Resistance

Interventions

DEVICE

No Results Yet

NCT00001971 | RECRUITING

8050 participants

Evaluation of Patients With Liver Disease

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 1992-05-27

Conditions

Hepatitis D
Hepatitis C
Hepatitis B
Liver Disease

No Results Yet

NCT00001620 | ENROLLING_BY_INVITATION

10000 participants

Screening for Hematology Branch Protocols

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 1996-12-31

Conditions

Hematologic Disease and Disorders
Donors
Healthy Volunteer

No Results Yet

NCT00001505 | COMPLETED

304 participants

The Acquisition of Blood and Skin Samples From Normal Volunteers to Support Research Activities on Dermatologic Diseases

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 1998-01-15

Conditions

Healthy Volunteer
Dermatologic Diseases
Systemic Diseases

No Results Yet

NCT00001471 | COMPLETED

386 participants

Tissue Biopsy and Imaging Studies in HIV-Infected Patients

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 1994-11-30

Conditions

HIV
ICL
Healthy Volunteers

No Results Yet

NCT00001452 | COMPLETED

1387 participants

Defining the Genetic Basis for the Development of Primary Pigmented Nodular Adrenocortical Disease (PPNAD) and the Carney Complex

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 1995-12-14

Conditions

Cushing's Syndrome
Pituitary Adenoma
Carney Complex
Primary Pigmented Nodular Adrenocortical Disease
Peutz-Jeghers Syndrome

Interventions

DRUG

No Results Yet

NCT00001406 | RECRUITING

800 participants

Activation and Function of Eosinophils in Conditions With Blood or Tissue Eosinophilia

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 1997-04-21

Conditions

Immune System Diseases
Eosinophilia
Helminthiasis
Hypersensitivity
Parasitic Disease

No Results Yet

NCT00001403 | RECRUITING

1500 participants

Study of Proteus Syndrome and Related Congenital Disorders

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 1994-04-27

Conditions

Proteus Syndrome
PIK3CA Related Overgrowth Spectrum

No Results Yet

NCT00001373 | RECRUITING

5000 participants

Familial Mediterranean Fever and Related Disorders: Genetics and Disease Characteristics

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 1994-03-10

Conditions

Familial Mediterranean Fever (FMF)
Autoinflammation
Periodic Fever
Fever
Genetic Diseases
ROSAH
ALPK1

No Results Yet

NCT00001281 | RECRUITING

2419 participants

Studies of the Pathogenesis of HIV Infection in Human Peripheral Blood Cells and/or Body Fluids in People Living With and Without HIV

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 1993-03-09

Conditions

HIV
Immunodeficiencies
Infectious Diseases

No Results Yet

NCT00001276 | RECRUITING

1500 participants

Diagnosing and Treating Low Blood Sugar Levels

Study Type:: OBSERVATIONAL
Last Updated:: 2026-08-13
Start Date:: 1991-05-21

Conditions

Hypoglycemia
Insulinoma

No Results Yet