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ClinicalTrials.gov public records Last synced Nov 2, 2026, 2:45 AM EST

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 353 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Observational study with no interventions Clear all
Recruiting No phase listed Observational

Key Longitudinal Associations With Risk and Glioblastoma Outcomes

NCT06625684
View directory record Official record
Conditions
Glioblastoma
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 20, 2026 · Synced Nov 2, 2026, 2:45 AM EST
Completed No phase listed Observational

The Mobility Toolkit: Electronically Augmented Assessment of Functional Recovery Following Lower-extremity Trauma

NCT04047030
View directory record Official record
Conditions
Gait
Interventions
None- Observational Study
Other
Lead sponsor
Major Extremity Trauma Research Consortium
Other
Eligibility
18 Years to 60 Years
Enrollment
244 participants
Timeline
2019 – 2024
U.S. locations
10
States / cities
Lexington, Kentucky • Baltimore, Maryland • Bethesda, Maryland + 7 more
Source: ClinicalTrials.gov public record
Updated Oct 6, 2025 · Synced Nov 2, 2026, 2:45 AM EST
Completed No phase listed Observational

Neurologic Manifestations of COVID 19 in Children

NCT04379089
View directory record Official record
Conditions
COVID, Neurologic Manifestations
Interventions
Observational study only
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
Up to 17 Years
Enrollment
3,568 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 27, 2023 · Synced Nov 2, 2026, 2:45 AM EST
Completed No phase listed Observational Results available

A Prospective Study of Airless Tubing in an Inpatient Acute Hemodialysis Unit in Hospitalized Patients

NCT02086682
View directory record Official record
Conditions
End Stage Renal Failure on Dialysis, Complication of Dialysis, Blood Coagulation Disorders
Interventions
Not listed
Lead sponsor
Marie Hogan
Other
Eligibility
18 Years and older
Enrollment
338 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 15, 2019 · Synced Nov 2, 2026, 2:45 AM EST
Completed No phase listed Observational

Observational Study of Iron Overload in Stem Cell Transplantation

NCT00954720
View directory record Official record
Conditions
Acute Myeloid Leukemia, Acute Lymphoblastic Leukemia, Myelodysplastic Syndrome
Interventions
No Intervention
Other
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years to 65 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 28, 2013 · Synced Nov 2, 2026, 2:45 AM EST
Terminated Not applicable Interventional Results available

Preliminary Percutaneous Intervention Versus Observational Trial of Arterial Ductus in Low-weight Infants

NCT03982342
View directory record Official record
Conditions
Patent Ductus Arteriosus
Interventions
Cather closure of patent ductus arteriosus (PDA), Conservative management of patent ductus arteriosus (PDA)
Device · Other
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
14 Days to 28 Days
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
2
States / cities
Columbus, Ohio • Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Feb 7, 2024 · Synced Nov 2, 2026, 2:45 AM EST
Completed No phase listed Observational

Study of the Treatment and Outcomes in Critically Ill Patients With COVID-19

NCT04343898
View directory record Official record
Conditions
Coronavirus Infection
Interventions
No intervention
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
5,154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 9, 2023 · Synced Nov 2, 2026, 2:45 AM EST
Completed No phase listed Observational

The Registry of Oncology Outcomes Associated With Testing and Treatment

NCT04028479
View directory record Official record
Conditions
Adenocarcinoma, Adenocystic Carcinoma, Anal Cancer, Appendix Cancer, Brain Tumor, Glioblastoma, Astrocytoma, Bile Duct Cancer, Cholangiocarcinoma, Bladder Cancer, Bone Cancer, Synovial Sarcoma, Chondrosarcoma, Liposarcoma, Sarcoma, Kaposi, Sarcoma,Soft Tissue, Sarcoma, Osteosarcoma, CNS Cancer, Brain Stem Neoplasms, Breast Cancer, Cervical Cancer, Colorectal Cancer, Rectal Cancer, Colon Cancer, Esophageal Cancer, Esophagus Cancer, Cancer of Colon, Pancreatic Cancer, Cancer of Pancreas, Testis Cancer, Testicular Cancer, Ureter Cancer, Renal Cell Carcinoma, Kidney Cancer, Gestational Trophoblastic Tumor, Head and Neck Neoplasms, Parotid Tumor, Larynx Cancer, Tongue Cancer, Pharynx Cancer, Salivary Gland Cancer, Acute Myeloid Leukemia, Chronic Myeloid Leukemia, Acute Lymphoblastic Leukemia, Multiple Myeloma, Non Hodgkin Lymphoma, Carcinoid Tumor, Lung Cancer, Neuroendocrine Tumors, Mesothelioma, Thyroid Cancer, Parathyroid Neoplasms, Adrenal Cancer, Small Bowel Cancer, Stomach Cancer, Liver Cancer, Hepatic Cancer, Melanoma, Skin Cancer, Unknown Primary Tumors, Uterine Cancer, Fallopian Tube Cancer, Ovarian Cancer, Prostate Cancer, Vaginal Cancer, Penile Cancer, Vulvar Cancer, Waldenstrom Macroglobulinemia, Cancer, Advanced, Thymus Cancer, Nasopharyngeal Carcinoma, Multiple Endocrine Neoplasia, Pheochromocytoma, Small Cell Carcinoma, Pulmonary Carcinoma
Interventions
Biomarker Testing (L), Systemic Treatment (T), Patient Reported Outcomes (P)
Diagnostic Test · Drug · Other
Lead sponsor
Taproot Health
Industry
Eligibility
18 Years and older
Enrollment
167 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
2
States / cities
Idaho Falls, Idaho • Laredo, Texas
Source: ClinicalTrials.gov public record
Updated Dec 18, 2024 · Synced Nov 2, 2026, 2:45 AM EST
Completed No phase listed Observational Accepts healthy volunteers Results available

Down Syndrome Metabolic Health Study

NCT01821300
View directory record Official record
Conditions
Down Syndrome, Trisomy 21
Interventions
Not listed
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
10 Years to 20 Years
Enrollment
257 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
2
States / cities
Washington D.C., District of Columbia • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 31, 2019 · Synced Nov 2, 2026, 2:45 AM EST
Active, not recruiting No phase listed Observational Accepts healthy volunteers

A Study to Assess the Pregnancy Outcome in Women Exposed to Dayvigo® During Pregnancy Compared to an Unexposed Control Population

NCT06744673
View directory record Official record
Conditions
Sleep Initiation and Maintenance Disorders, Pregnancy
Interventions
No Intervention
Other
Lead sponsor
Eisai Inc.
Industry
Eligibility
16 Years to 49 Years · Female only
Enrollment
861 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Nutley, New Jersey
Source: ClinicalTrials.gov public record
Updated Jun 19, 2025 · Synced Nov 2, 2026, 2:45 AM EST
Completed No phase listed Observational Accepts healthy volunteers

Immunopathogenesis of Chlamydia

NCT00607659
View directory record Official record
Conditions
CHLAMYDIA INFECTIONS
Interventions
No intervention, only observational
Other
Lead sponsor
Arkansas Children's Hospital Research Institute
Other
Eligibility
11 Years to 21 Years · Female only
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2016
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Apr 14, 2016 · Synced Nov 2, 2026, 2:45 AM EST
Completed Not applicable Interventional Accepts healthy volunteers

Melanoma Simulation Model With Smartphone Devices: Training Physicians for Early Detection of Melanoma

NCT01859845
View directory record Official record
Conditions
Melanoma
Interventions
Smartphone
Other
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 1, 2014 · Synced Nov 2, 2026, 2:45 AM EST
Completed No phase listed Observational

Historical Data Analysis of Hematological Remission and Survival in Adults With R/R Acute Lymphoblastic Leukemia

NCT02003612
View directory record Official record
Conditions
Acute Lymphoblastic Leukemia
Interventions
Not applicable - observational study
Other
Lead sponsor
Amgen
Industry
Eligibility
15 Years and older
Enrollment
2,373 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
2
States / cities
Boston, Massachusetts • Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 7, 2022 · Synced Nov 2, 2026, 2:45 AM EST
Recruiting No phase listed Observational

Enhancing Diabetes Care: Exposome &Amp; Sensors

NCT06989008
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Observational Study: Relationships Among Glucose, Physical Activity and Environmental Influences
Other
Lead sponsor
University of Illinois Chicago
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
2
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 25, 2025 · Synced Nov 2, 2026, 2:45 AM EST
Recruiting No phase listed Observational

The KidneyCARE (Community Access to Research Equity) Study

NCT05497518
View directory record Official record
Conditions
Chronic Kidney Disease, Dialysis, Kidney Transplant
Interventions
Observational study - registry
Other
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years to 120 Years
Enrollment
50,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2070
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 26, 2026 · Synced Nov 2, 2026, 2:45 AM EST
Terminated No phase listed Observational

Understanding Immunology and Patient Outcomes of COVID-19 in Hospitalized Patients

NCT04892797
View directory record Official record
Conditions
Covid19
Interventions
Covid-19+ observational
Other
Lead sponsor
University of Vermont
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated May 14, 2025 · Synced Nov 2, 2026, 2:45 AM EST
Terminated No phase listed Observational

Nanowear Heart Failure Management Multi-sensor Algorithm

NCT03719079
View directory record Official record
Conditions
Heart Failure
Interventions
SimpleSENSE
Device
Lead sponsor
Nanowear Inc.
Industry
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 9, 2026 · Synced Nov 2, 2026, 2:45 AM EST
Completed No phase listed Observational

A Study to Describe Mothers' and Babies' Outcomes After Exposure to HyQvia During Pregnancy

NCT05803200
View directory record Official record
Conditions
Exposure During Pregnancy
Interventions
No intervention
Drug
Lead sponsor
Takeda
Industry
Eligibility
16 Years to 44 Years · Female only
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 25, 2023 · Synced Nov 2, 2026, 2:45 AM EST
Completed No phase listed Observational Accepts healthy volunteers

Characterizing Inflammatory Profiles and Suicidal Behavior in Adolescents

NCT04783506
View directory record Official record
Conditions
Suicide and Depression
Interventions
Observational Study
Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
12 Years to 18 Years
Enrollment
225 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Dec 19, 2025 · Synced Nov 2, 2026, 2:45 AM EST
Active, not recruiting No phase listed Observational

Evaluation of Cemiplimab in Combination With Platinum-Doublet Chemotherapy in First-Line (1L) Treatment of Advanced Non-Small Cell Lung Cancer (NSCLC) in Adult United States (US) Participants

NCT06269133
View directory record Official record
Conditions
Advanced Non-small Cell Lung Cancer
Interventions
REGN2810, Platinum-doublet chemotherapy
Drug · Other
Lead sponsor
Regeneron Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Tarrytown, New York
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Nov 2, 2026, 2:45 AM EST
Completed No phase listed Observational Accepts healthy volunteers

Mindfulness Based Chronic Pain Management: A Pilot Study

NCT01886885
View directory record Official record
Conditions
Chronic Pain
Interventions
Mindfulness Based Chronic Pain Management Intervention
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Nov 8, 2023 · Synced Nov 2, 2026, 2:45 AM EST
Completed Not applicable Interventional Accepts healthy volunteers

Cardiac Rehab and Cerebral Blood Flow Study

NCT05012878
View directory record Official record
Conditions
Cardiovascular Diseases
Interventions
Cardiac rehabilitation - high intensity interval training (HIIT), Cardiac rehabilitation - moderate intensity continuous training (MICT), Cardiac rehabilitation - control, Cardiac rehabilitation - observational
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
40 Years and older
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 29, 2025 · Synced Nov 2, 2026, 2:45 AM EST
Completed No phase listed Observational Accepts healthy volunteers

Characterization of Adults for Asthma Microbiome Research Studies

NCT02887911
View directory record Official record
Conditions
Asthma, Healthy
Interventions
Not listed
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 75 Years
Enrollment
171 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2020
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 20, 2022 · Synced Nov 2, 2026, 2:45 AM EST
Completed Not applicable Interventional

Exercise in Adults with Post-Acute Sequelae of SARS-CoV-2 (COVID-19) Infection Study

NCT05218174
View directory record Official record
Conditions
COVID-19
Interventions
Exercise Prescription
Other
Lead sponsor
Baylor Research Institute
Other
Eligibility
18 Years to 65 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Frisco, Texas
Source: ClinicalTrials.gov public record
Updated Jan 22, 2025 · Synced Nov 2, 2026, 2:45 AM EST