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ClinicalTrials.gov public records Last synced Oct 17, 2026, 10:59 AM EDT

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Showing 241–264 of 4,385 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Observational study Clear all
Completed No phase listed Observational Accepts healthy volunteers Results available

COVID-19 Observational Research Collaboratory

NCT05394025
View directory record Official record
Conditions
COVID-19, SARS-CoV-2 Infection
Interventions
Not listed
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
479 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
6
States / cities
West Haven, Connecticut • Ann Arbor, Michigan • Durham, North Carolina + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 7, 2025 · Synced Oct 17, 2026, 10:59 AM EDT
Withdrawn No phase listed Observational

Mitochondrial Dysfunction Contributes to Sepsis Induced Cardiac Dysfunction

NCT05148117
View directory record Official record
Conditions
Sepsis
Interventions
Suspected Sepsis Group - Diagnostic Measurements, Control Group - Diagnostic Measurements
Diagnostic Test
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Feb 20, 2026 · Synced Oct 17, 2026, 10:59 AM EDT
Recruiting No phase listed Observational

Targeted Early Detection Program in Men at High Genetic Risk for Prostate Cancer

NCT07645391
View directory record Official record
Conditions
Prostate Carcinoma
Interventions
Non-Interventional Study
Other
Lead sponsor
University of Michigan Rogel Cancer Center
Other
Eligibility
35 Years to 70 Years · Male only
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2030
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 12, 2026 · Synced Oct 17, 2026, 10:59 AM EDT
Completed No phase listed Observational

The Cleveland Cardiometabolic Cohort

NCT03059121
View directory record Official record
Conditions
HIV, Lipodystrophy
Interventions
Dual-energy X-ray absorptiometry
Diagnostic Test
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
16 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2025
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 28, 2026 · Synced Oct 17, 2026, 10:59 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Amniotic Fluid Sludge in Cerclage Patients as an Indicator for Increased Risk of Preterm Delivery and Neonatal Outcome.

NCT00722085
View directory record Official record
Conditions
High Risk Pregnancy, Incompetent Cervix, Cerclage, Amniotic Fluid Sludge, Gestation Age at Delivery.
Interventions
Not listed
Lead sponsor
Center For Maternal Fetal Medicine
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
177 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Jul 25, 2008 · Synced Oct 17, 2026, 10:59 AM EDT
Completed Not applicable Interventional Results available

Insertion of an Intrauterine Device (IUD) After Medical Abortion

NCT00621543
View directory record Official record
Conditions
Intrauterine Device Expulsion, Medical Abortion, Induced Abortion
Interventions
IUD insertion [Copper T-380A or Levonorgestrel (intrauterine system) IUS]
Device
Lead sponsor
Boston University
Other
Eligibility
18 Years to 64 Years · Female only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
2
States / cities
Boston, Massachusetts • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jul 14, 2011 · Synced Oct 17, 2026, 10:59 AM EDT
Terminated No phase listed Observational

EndoPredict® Extended Endocrine Trial (EXET)

NCT04016935
View directory record Official record
Conditions
Primary Invasive Breast Cancer
Interventions
Observational
Other
Lead sponsor
Myriad Genetic Laboratories, Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
855 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
52
States / cities
Burbank, California • Roseville, California • Fort Myers, Florida + 40 more
Source: ClinicalTrials.gov public record
Updated May 17, 2022 · Synced Oct 17, 2026, 10:59 AM EDT
Completed Phase 2 Interventional Results available

A Phase 2 Study to Evaluate the Safety and Efficacy of TAK-385, Together With a Leuprorelin Observational Cohort, in Participants With Prostate Cancer

NCT02083185
View directory record Official record
Conditions
Prostate Cancer
Interventions
Relugolix, Leuprorelin
Drug
Lead sponsor
Millennium Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older · Male only
Enrollment
136 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
19
States / cities
Birmingham, Alabama • San Diego, California • Denver, Colorado + 16 more
Source: ClinicalTrials.gov public record
Updated May 9, 2018 · Synced Oct 17, 2026, 10:59 AM EDT
Completed No phase listed Observational

Observational Study of Real World Effectiveness Data and Safety in Patients Receiving Pazopanib With Advanced or Metastatic Renal Cell Carcinoma

NCT01649778
View directory record Official record
Conditions
Carcinoma, Renal Cell
Interventions
Pazopanib
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 99 Years
Enrollment
662 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
15
States / cities
Phoenix, Arizona • Orange, California • Jacksonville, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Jul 15, 2020 · Synced Oct 17, 2026, 10:59 AM EDT
Completed Not applicable Interventional

Insulin Start Therapy Application With Resources and Training

NCT03999268
View directory record Official record
Conditions
Diabetes Mellitus, Type 2
Interventions
I-START, Standard Insulin Administration Education
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 8, 2022 · Synced Oct 17, 2026, 10:59 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Whole Blood Specimen Collection From Pregnant Subjects

NCT02430584
View directory record Official record
Conditions
Down Syndrome, Edwards Syndrome, Patau Syndrome, Klinefelter Syndrome, Turner Syndrome, DiGeorge Syndrome, Perinatal Infections
Interventions
Observational - no intervention
Other
Lead sponsor
Progenity, Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
5,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2021
U.S. locations
1
States / cities
Chattanooga, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 17, 2020 · Synced Oct 17, 2026, 10:59 AM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

MOON Onsite MRI 10 Years After ACL Reconstruction

NCT04660955
View directory record Official record
Conditions
Osteoarthritis, Knee
Interventions
No Intervention - Observational study with MRI
Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
22 Years to 45 Years
Enrollment
219 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2030
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 24, 2026 · Synced Oct 17, 2026, 10:59 AM EDT
Not listed No phase listed Observational

The PerX360º System™ Registry

NCT01796535
View directory record Official record
Conditions
DDD
Interventions
Not listed
Lead sponsor
Interventional Spine, Inc.
Industry
Eligibility
18 Years and older
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
2
States / cities
Los Angeles, California • Saint Augustine, Florida
Source: ClinicalTrials.gov public record
Updated Mar 15, 2013 · Synced Oct 17, 2026, 10:59 AM EDT
Completed No phase listed Observational

Clinical Validation of HostDx Sepsis™ on NanoString; a Prospective Observational Validation Trial

NCT04414189
View directory record Official record
Conditions
Sepsis
Interventions
HostDx Sepsis
Diagnostic Test
Lead sponsor
Inflammatix
Industry
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Dec 22, 2021 · Synced Oct 17, 2026, 10:59 AM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

Endometrial Cancer Recurrence in Patients Taking Metformin

NCT05192850
View directory record Official record
Conditions
Recurrent Endometrial Carcinoma
Interventions
Metformin use
Drug
Lead sponsor
WellSpan Health
Other
Eligibility
18 Years to 99 Years · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
York, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 28, 2025 · Synced Oct 17, 2026, 10:59 AM EDT
Completed No phase listed Observational

A Multicenter Observational Study to Evaluate the Effectiveness of Patisiran in Patients With Polyneuropathy of ATTRv Amyloidosis With a V122I or T60A Mutation

NCT04201418
View directory record Official record
Conditions
Hereditary Transthyretin-mediated (ATTRv) Amyloidosis, Polyneuropathy
Interventions
Patisiran
Drug
Lead sponsor
Alnylam Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
27
States / cities
Los Angeles, California • San Diego, California • Aurora, Colorado + 22 more
Source: ClinicalTrials.gov public record
Updated Jun 6, 2022 · Synced Oct 17, 2026, 10:59 AM EDT
Completed No phase listed Observational

Autoregulation Assessment During Liver Transplantation

NCT01425385
View directory record Official record
Conditions
Liver Failure, Liver Transplantation, Encephalopathy
Interventions
Near infrared spectroscopy monitoring, Autoregulation monitoring
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 22, 2017 · Synced Oct 17, 2026, 10:59 AM EDT
Completed No phase listed Observational

ABC-CT Pre-School Feasibility Study

NCT06413316
View directory record Official record
Conditions
Autism Spectrum Disorder
Interventions
Not listed
Lead sponsor
Yale University
Other
Eligibility
3 Years to 5 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
5
States / cities
Los Angeles, California • New Haven, Connecticut • Boston, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 2, 2025 · Synced Oct 17, 2026, 10:59 AM EDT
Completed No phase listed Observational Results available

An Observational Multicenter Clinical Study To Assess The Safety And Effectiveness Of The OMNI® Surgical System In Pseudophakic Eyes With Primary Open Angle Glaucoma (ORION 2.0)

NCT04872348
View directory record Official record
Conditions
Glaucoma, Open-Angle
Interventions
OMNI® Surgical System
Device
Lead sponsor
Sight Sciences, Inc.
Industry
Eligibility
Not listed
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
10
States / cities
Atlanta, Georgia • Wichita, Kansas • Bloomington, Minnesota + 7 more
Source: ClinicalTrials.gov public record
Updated May 22, 2025 · Synced Oct 17, 2026, 10:59 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

An Evaluation of Long-Term Supplement Use on Biological Age and Metabolic Health Markers - The BioAge Trial

NCT07755943
View directory record Official record
Conditions
Generally Healthy Adults Who Are Long-term Supplement Users
Interventions
No Intervention: Observational Cohort
Other
Lead sponsor
Shaklee Corporation
Industry
Eligibility
40 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Oct 17, 2026, 10:59 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Autism Biomarker Consortium for Clinical Trials (ABC-CT): Follow-up Study

NCT04841525
View directory record Official record
Conditions
Autism Spectrum Disorder
Interventions
Not listed
Lead sponsor
Yale University
Other
Eligibility
6 Years to 11 Years
Enrollment
265 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 5, 2023 · Synced Oct 17, 2026, 10:59 AM EDT
Recruiting Phase 3 Interventional

A Study of Gammagard Liquid (Immune Globulin Infusion, 10%) to Prevent Infections in Adults With Multiple Myeloma

NCT06980480
View directory record Official record
Conditions
Multiple Myeloma, Secondary Immunodeficiency
Interventions
IGI, 10%
Biological
Lead sponsor
Takeda
Industry
Eligibility
18 Years and older
Enrollment
183 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
7
States / cities
Mobile, Alabama • Orange, California • Westwood, Kansas + 4 more
Source: ClinicalTrials.gov public record
Updated Oct 13, 2026 · Synced Oct 17, 2026, 10:59 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Investigating the Feasibility and Acceptability of an Innovative Interdisciplinary Supportive Care Program: Couples Coping Together Against Cancer

NCT07664579
View directory record Official record
Conditions
Anatomic Stage IV Breast Cancer AJCC v8, Glioblastoma, Lung Carcinoma, Malignant Solid Neoplasm, Metastatic Breast Carcinoma
Interventions
Non-Interventional Study
Other
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Enrollment
160 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Oct 17, 2026, 10:59 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Study of Lifestyle Intervention in Overweight or Obese Women With Early Stage Breast Cancer

NCT02037542
View directory record Official record
Conditions
Weight
Interventions
Diet and exercise
Behavioral
Lead sponsor
Baptist Health South Florida
Other
Eligibility
18 Years to 89 Years · Female only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jul 21, 2016 · Synced Oct 17, 2026, 10:59 AM EDT