Clinical trials: Natural History
Lassa Virus Infection
Prevalence and Incidence of Lassa Virus Infection in Southern Mali
Background: The disease Lassa fever mostly affects people in Western Africa. It is very similar to other diseases that cause fever, like malaria and yellow fever. People get Lassa fever from mice infected with Lassa virus.
- Trial name
- NCT03783143
- Where
- Mali
- Volunteers
- 8,524 people
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Thrombocytopenia, Platelet Transfusion Refractoriness
Complement (C1q) Binding to HLA Antibodies in a Solid-phase Immunoassay and Clinical Effect on Platelet Transfusion
Background: Platelets are blood cells that help blood clot. Some people have what is called thrombocytopenia. This means they have a low blood platelet count. They need platelet transfusions very often.
- Trial name
- NCT02858323
- Where
- United States
- Volunteers
- 68 people
- Sponsor
- National Institutes of Health Clinical Center (CC)
KCNT1-Related Epilepsy
A Natural History Study of Participants With Potassium Sodium-Activated Channel Subfamily T Member 1 (KCNT1)-Related Epilepsy
The primary objective of the study is to characterize seizures in participants with KCNT1-related epilepsy. The secondary objectives are to characterize head growth, symptom severity, neurocognitive and social functions, adaptive…
- Trial name
- K1Te (NCT04924153)
- Testing
- No Intervention
- Where
- United States
- Volunteers
- 35 people
- Sponsor
- Biogen
Obesity, Eating Behaviors
Children s Growth and Behavior Study
Background: Studies show that many factors affect children's eating behavior and health. These include sleep, mood, thinking skills, and genetics.
- Conditions
- Obesity, Eating Behaviors, Healthy Volunteers
- Trial name
- NCT02390765
- Where
- United States
- Volunteers
- 1,500 people, healthy volunteers welcome
- Sponsor
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Obesity
Mechanisms Underlying Individual Variations of Taste and Smell in Obesity
Background: Changes to the sense of taste or smell can change eating behavior. This may contribute to obesity. Researchers want to see how taste and smell perceptions that affect food choices may differ between people with…
- Trial name
- NCT04714892
- Where
- United States
- Volunteers
- 350 people, healthy volunteers welcome
- Sponsor
- National Institute on Alcohol Abuse and Alcoholism (NIAAA)
Parkinson's Disease
Natural History of Levodopa-Induced Dyskinesia (LID)
Levodopa is the main drug treatment for Parkinson's disease. Levodopa can cause unwanted and uncontrolled movements called dyskinesias (LID). The severity of these movements can range from subtle to extremely debilitating.
- Trial name
- NCT01003002
- Testing
- Levodopa (delivered intravenously)
- Where
- United States
- Sponsor
- Oregon Health and Science University
Stroke
A Clinical Trial to Assess the Acute Safety and Functional Outcome and Recovery After STROKE: The FIRST Trial
Current literature has only limited information on the natural history of acute ischemic stroke from large vessel occlusion in a stroke cohort who presents within 8 hours from symptom onset, particularly on 90 day functional…
- Trial name
- FIRST (NCT01092819)
- Testing
- Current standard of care for acute ischemic stroke other than IV rtPA or other IA therapies
- Where
- 3 sites in United States, China
- Volunteers
- 150 people
- Sponsor
- Penumbra Inc.
COVID-19
COVID-19 Experiences in the SELF Cohort
Background: COVID-19 affected African Americans more than Whites. African Americans, especially women, have had higher rates of COVID-19 infections compared to Whites.
- Trial name
- NCT05369611
- Where
- United States
- Volunteers
- 1,197 people
- Sponsor
- National Institute of Environmental Health Sciences (NIEHS)
Multiple Sclerosis
Relating Genetic and Environmental Risk Scores to Multiple Sclerosis Susceptibility
Background: Research shows that both genes and the environment influence a person s risk for getting multiple sclerosis (MS). However, it is not possible to accurately predict who will develop MS.
- Trial name
- NCT01617395
- Where
- United States
- Volunteers
- 181 people
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Glycogen Storage Disease Type IV, Adult Polyglucosan Body Disease
GBE Deficiency (GSD IV and APBD) Natural History Study
Collection and review of clinical information related to glycogen branching enzyme (GBE) deficiency, diagnosed as Glycogen Storage Disease Type IV (GSD IV) or Adult Polyglucosan Body Disease (APBD generated during clinic visits.
- Conditions
- Glycogen Storage Disease Type IV, Adult Polyglucosan Body Disease, GSD4, GSD IV
- Trial name
- NCT02683512
- Testing
- No intervention
- Where
- United States
- Volunteers
- 200 people
- Sponsor
- Duke University
BK Virus Infection
Prospective Study of BK Virus Disease After Allogeneic Hematopoietic-cell Transplantation: Defining BK Disease's Natural History, Clinical Spectrum, Immunology, and Outcomes
This research study is evaluating the reactivation of BK virus in patients who have undergone allogeneic hematopoietic-cell transplantation.
- Trial name
- NCT03532971
- Testing
- Symptom index questionnaire, BK polyomavirus PCR, quality of life questionnaires
- Where
- United States
- Volunteers
- 100 people
- Sponsor
- Dana-Farber Cancer Institute
Generalized Arterial Calcification of Infancy, Autosomal Recessive Hypophosphatemic Rickets Type2
Study of People With Generalized Arterial Calcification of Infancy (GACI) or Autosomal Recessive Hypophosphatemic Rickets Type 2 (ARHR2)
Background: Generalized Arterial Calcification of Infancy (GACI) is a very rare disorder. It can be fatal before birth or by age 6 months. Anumber of people with GACI survive into adulthood.
- Trial name
- NCT03478839
- Where
- United States
- Volunteers
- 48 people
- Sponsor
- National Human Genome Research Institute (NHGRI)
Schizoaffective Disorder, Schizophrenia
Functional Relevance of Dopamine Receptors in Healthy Controls and Patients With Schizophrenia: Characterization Through [11C]NNC-112 and [18F]Fallypride Positron Emission Tomography
Background: Some illnesses, such as schizophrenia, have effects on brain cells called dopamine receptors, which are required for normal brain function.
- Trial name
- NCT00942981
- Testing
- PET
- Where
- United States
- Volunteers
- 283 people, healthy volunteers welcome
- Sponsor
- National Institute of Mental Health (NIMH)
Mucopolysaccharidosis III-A
A Natural History Study of Biomarkers and Clinical Outcomes in Mucopolysaccharidosis Type IIIA (MPS IIIA; Sanfilippo Syndrome)
This protocol is a decentralized, single cohort, natural history and biomarker study enrolling up to 20 participants with MPS IIIA (Sanfilippo syndrome).
- Trial name
- NCT05523206
- Testing
- No intervention
- Where
- United States
- Volunteers
- 15 people
- Sponsor
- Sanguine Biosciences
Normal Physiology
Development of 3T Magnetic Resonance Research Methods for NIA Studies
Background: Magnetic resonance imaging (MRI) studies provide important information on the structure and function of various body systems, including the brain, muscles, joints, heart, and blood vessels.
- Trial name
- NCT01324206
- Where
- United States
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- National Institute on Aging (NIA)
Healthy Volunteers, Substance Use Disorders
Characterization of Phenotypic and Genotypic Regressors for Imaging
The influence of genes on addictive and neuropsychiatric disorders is complex, especially given that multiple genes likely influence certain behaviors that are correlated with addiction.
- Trial name
- NCT01148381
- Where
- United States
- Volunteers
- 847 people
- Sponsor
- National Institute on Drug Abuse (NIDA)
Basilar Invagination
A Prospective Study of Natural History and Clinical Outcomes for Basilar Invagination
A Prospective Study of Natural History and Clinical Outcomes for Basilar Invagination
- Trial name
- NCT05909540
- Testing
- Posterior facet distraction and fusion
- Where
- China
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Xuanwu Hospital, Beijing
Cirrhosis, Advanced Chronic Liver Disease
Natural History of Advanced Chronic Liver Diseases
This is a retrospective-prospective registry cohort study. Patients with advanced chronic liver disease (ACLD) will be prospectively invited to this study. The study follow-up duration will be 10 years.
- Trial name
- NCT07042308
- Testing
- Transient elastography
- Where
- Hong Kong
- Volunteers
- 500 people
- Sponsor
- Chinese University of Hong Kong
Monoclonal Gammopathy of Undetermined Significance
Observation of the Incidence and Natural History of MGUS in Patients Undergoing Weight Reduction Surgery
Screening study to determine incidence of MGUS in this patient population
- Trial name
- NCT03855878
- Where
- United States
- Volunteers
- 209 people
- Sponsor
- Indiana University
Cystic Fibrosis, Immunologic Deficiency Syndrome
Natural History of Noncirrhotic Portal Hypertension
Background: Noncirrhotic Portal Hypertension (NCPH) is caused by liver diseases that increase pressure in the blood vessels of the liver. It seems to start slowly and not have many warning signs.
- Conditions
- Cystic Fibrosis, Immunologic Deficiency Syndrome, Turner Syndrome, Congenital Hepatic Fibrosis
- Trial name
- NCT02417740
- Where
- United States
- Volunteers
- 400 people
- Sponsor
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
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