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ClinicalTrials.gov public records Last synced Sep 12, 2026, 5:34 AM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: None - Observational Clear all
Terminated No phase listed Observational

An Observational Study of Patients Receiving T-DXd for Treatment of HER2+, and HER2-low Unresectable and/or Metastatic Breast Cancer

NCT05592483
View directory record Official record
Conditions
Breast Cancer
Interventions
None (Observational Study)
Other
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
40
States / cities
Mobile, Alabama • Chandler, Arizona • Little Rock, Arkansas + 36 more
Source: ClinicalTrials.gov public record
Updated Nov 6, 2024 · Synced Sep 12, 2026, 5:34 AM EDT
Completed No phase listed Observational

Establishment of Natural History of Scorpion Envenomation

NCT00696683
View directory record Official record
Conditions
Scorpion Sting Envenomation
Interventions
None, this is an observational study
Other
Lead sponsor
Instituto Bioclon S.A. de C.V.
Industry
Eligibility
6 Months to 18 Years
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Jun 12, 2008 · Synced Sep 12, 2026, 5:34 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

The SKyRoCKeT Study

NCT05770817
View directory record Official record
Conditions
Healthy
Interventions
N/A: SKyRoCKeT is an observational study
Other
Lead sponsor
University of North Carolina, Charlotte
Other
Eligibility
6 Years to 20 Years
Enrollment
360 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Sep 12, 2026, 5:34 AM EDT
Terminated No phase listed Observational

Study of Non-Small Cell Lung Cancer Patients in the US Receiving Standard-of-Care and Initiating an Approved Therapy With Risk of Pneumonitis/ILD

NCT06192004
View directory record Official record
Conditions
Non-Small Cell Lung Cancer
Interventions
None (Observational Study)
Other
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years and older
Enrollment
83 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
23
States / cities
Los Angeles, California • Denver, Colorado • Golden, Colorado + 18 more
Source: ClinicalTrials.gov public record
Updated May 3, 2026 · Synced Sep 12, 2026, 5:34 AM EDT
Withdrawn No phase listed Observational

A Study of the Natural Course of SURF1 Deficiency

NCT05277363
View directory record Official record
Conditions
Leigh Syndrome
Interventions
None (Observational study)
Other
Lead sponsor
Taysha Gene Therapies, Inc.
Industry
Eligibility
Up to 18 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated May 19, 2022 · Synced Sep 12, 2026, 5:34 AM EDT
Terminated No phase listed Observational

Registry to Evaluate Long-Term Outcomes in Patients Who Undergo 68-Ga-PSMA-11 PET/CT Imaging Evaluations

NCT06655064
View directory record Official record
Conditions
Prostate Cancer (Adenocarcinoma)
Interventions
None- Observational
Other
Lead sponsor
Telix Pharmaceuticals (Innovations) Pty Limited
Industry
Eligibility
21 Years and older · Male only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
9
States / cities
Fresno, California • Grand Junction, Colorado • Meridian, Idaho + 5 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2025 · Synced Sep 12, 2026, 5:34 AM EDT
Terminated No phase listed Observational

Pelvic Floor Disorders Among Sexual Minoritized Women

NCT05072158
View directory record Official record
Conditions
Sexual Function Disturbances, Pelvic Organ Prolapse, Urinary Incontinence, Fecal Incontinence
Interventions
None, this is an observational study
Other
Lead sponsor
University of New Mexico
Other
Eligibility
18 Years and older · Female only
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Jan 11, 2024 · Synced Sep 12, 2026, 5:34 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Long-Term Experience and Health Effects of COVID-19

NCT04477902
View directory record Official record
Conditions
Covid19, Corona Virus Infection, Quality of Life, Risk Reduction
Interventions
none - observational
Other
Lead sponsor
Altura
Industry
Eligibility
18 Years to 100 Years
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Mission Viejo, California
Source: ClinicalTrials.gov public record
Updated Jun 23, 2021 · Synced Sep 12, 2026, 5:34 AM EDT
Recruiting No phase listed Observational

The Fibrodysplasia Ossificans Progressiva (FOP) Registry

NCT02745158
View directory record Official record
Conditions
Fibrodysplasia Ossificans Progressiva (FOP)
Interventions
Not listed
Lead sponsor
The International FOP Association
Other
Eligibility
Not listed
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2040
U.S. locations
1
States / cities
North Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 7, 2026 · Synced Sep 12, 2026, 5:34 AM EDT
Recruiting No phase listed Observational

A Mobile App-Based Study to Evaluate Disease Burden and Treatment Patterns in Immunoglobulin A Nephropathy (IgAN) in the US

NCT06952426
View directory record Official record
Conditions
Immunoglobulin A Nephropathy
Interventions
No intervention, Other treatment, Iptacopan, Atrasentan
Other
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 16, 2025 · Synced Sep 12, 2026, 5:34 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Use of Insorb Absorbable Vicryl Staples in Skin Closure for Cesarean Section

NCT01446627
View directory record Official record
Conditions
Wound Infection
Interventions
There is no intervention for this study
Other
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
14 Years to 50 Years · Female only
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 2, 2013 · Synced Sep 12, 2026, 5:34 AM EDT
Recruiting No phase listed Observational

Healthy Living BEYOND Weight Study

NCT07075341
View directory record Official record
Conditions
Overweight or Obesity
Interventions
None - Observational study
Other
Lead sponsor
American Heart Association
Other
Eligibility
18 Years and older
Enrollment
1,000,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2060
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Aug 5, 2025 · Synced Sep 12, 2026, 5:34 AM EDT
Completed No phase listed Observational

Estimation of the Prevalence of HER2 Low and Describe the SoC, Treatment Patterns, and Outcome in Real-world Practice Among Unresectable and/or Metastatic Breast Cancer Patients With HER2 Low Status

NCT04807595
View directory record Official record
Conditions
Breast Cancer
Interventions
None (Observational study)
Other
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
798 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 5, 2023 · Synced Sep 12, 2026, 5:34 AM EDT
Completed No phase listed Observational

Salivary Markers in Periodontal Disorders

NCT06576856
View directory record Official record
Conditions
Periodontal Disease, Staging, Salivary Markers, Diagnosis
Interventions
This is an observational study, no intervention is anticipated.
Other
Lead sponsor
Midwestern University
Other
Eligibility
30 Years to 99 Years
Enrollment
106 participants
Timeline
2021 – 2024
U.S. locations
1
States / cities
Downers Grove, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 15, 2025 · Synced Sep 12, 2026, 5:34 AM EDT
Completed Phase 3 Interventional Results available

Treatment in Preventing Anal Cancer in Patients With HIV and Anal High-Grade Lesions

NCT02135419
View directory record Official record
Conditions
Anal Cancer, High-grade Squamous Intraepithelial Lesion, HIV Infection, Human Papilloma Virus Infection
Interventions
imiquimod, fluorouracil, infrared photocoagulation therapy, thermal ablation therapy, laser therapy, clinical observation, laboratory biomarker analysis
Drug · Device · Other
Lead sponsor
AIDS Malignancy Consortium
Network
Eligibility
35 Years and older
Enrollment
4,446 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2024
U.S. locations
24
States / cities
Los Angeles, California • Palm Springs, California • San Francisco, California + 13 more
Source: ClinicalTrials.gov public record
Updated Jul 25, 2024 · Synced Sep 12, 2026, 5:34 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

A Novel Framework for Impaired Imitation in ASD

NCT03423160
View directory record Official record
Conditions
Autism Spectrum Disorder
Interventions
None--observational
Other
Lead sponsor
Hugo W. Moser Research Institute at Kennedy Krieger, Inc.
Other
Eligibility
8 Years to 12 Years
Enrollment
201 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2028
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 26, 2026 · Synced Sep 12, 2026, 5:34 AM EDT
Recruiting No phase listed Observational

A Longitudinal Multi-Center Molecular Biomarker Discovery Registry for Patients With Hematologic Malignancies

NCT07154823
View directory record Official record
Conditions
Acute Myeloid Leukaemia (AML), Follicular Lymphoma ( FL)
Interventions
None - Observational Study
Other
Lead sponsor
Tempus AI
Industry
Eligibility
0 Years and older
Enrollment
550 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2035
U.S. locations
10
States / cities
Iowa City, Iowa • Bethesda, Maryland • St Louis, Missouri + 7 more
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Sep 12, 2026, 5:34 AM EDT
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 5, 2025 · Synced Sep 12, 2026, 5:34 AM EDT
Completed No phase listed Observational

Prospective Phenotyping for Genetic Subtypes of Early-onset Atrial Fibrillation

NCT05190679
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
None/Observational Studies
Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
15 Years and older
Enrollment
155 participants
Timeline
2022 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 12, 2026, 5:34 AM EDT
Recruiting No phase listed Observational

Fecal Microbiota Transplant National Registry

NCT03325855
View directory record Official record
Conditions
Fecal Microbiota Transplantation, Clostridium Difficile Infection, Gut Microbiome
Interventions
None - Observational
Other
Lead sponsor
American Gastroenterological Association
Other
Eligibility
Not listed
Enrollment
4,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
52
States / cities
Phoenix, Arizona • Los Angeles, California • Redwood City, California + 39 more
Source: ClinicalTrials.gov public record
Updated Jan 20, 2026 · Synced Sep 12, 2026, 5:34 AM EDT
Terminated No phase listed Observational

Study to Evaluate Corneal Neurosensory Abnormalities in Patients With Sjögren's Dry Eye

NCT06411132
View directory record Official record
Conditions
Sjögren Syndrome, Dry Eye
Interventions
observational study
Other
Lead sponsor
Dompé Farmaceutici S.p.A
Industry
Eligibility
18 Years and older
Enrollment
103 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
15
States / cities
Bakersfield, California • Aurora, Colorado • Jacksonville, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Nov 19, 2025 · Synced Sep 12, 2026, 5:34 AM EDT
Recruiting No phase listed Observational

PReSeRVE-HD: Observational Study of the Merit HeRO® Graft and Super HeRO® in Patients on Hemodialysis

NCT06422871
View directory record Official record
Conditions
End Stage Renal Disease, Hemodialysis Access Failure
Interventions
HeRO® Graft System or Super HeRO® System
Device
Lead sponsor
Merit Medical Systems, Inc.
Industry
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
7
States / cities
Washington D.C., District of Columbia • Sarasota, Florida • Raleigh, North Carolina + 4 more
Source: ClinicalTrials.gov public record
Updated May 31, 2026 · Synced Sep 12, 2026, 5:34 AM EDT
Completed No phase listed Observational

A Study to Describe the Characteristics, Health Care Interventions and Outcomes of Patients With Major Bleedings in the Presence of Factor Xa Inhibitor Treatment

NCT06147830
View directory record Official record
Conditions
Major Bleeding
Interventions
None (Observational study)
Other
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
2,202 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
25
States / cities
Chandler, Arizona • Orange, California • Sacramento, California + 22 more
Source: ClinicalTrials.gov public record
Updated Nov 2, 2025 · Synced Sep 12, 2026, 5:34 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Tennessee Alzheimer's Project

NCT05372172
View directory record Official record
Conditions
Aging, Alzheimer Disease, Biomarker, Cognitive Dysfunction, Mild Cognitive Impairment, Dementia, Cognition
Interventions
none, observational study
Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
60 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2030
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Feb 4, 2026 · Synced Sep 12, 2026, 5:34 AM EDT