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ClinicalTrials.gov public records Last synced Sep 28, 2026, 3:46 PM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: No intervention, only observational Clear all
Recruiting No phase listed Observational

Exhaled Breath: A Novel Technique for Rapid Diagnosis of Respiratory Diseases and Infections

NCT06775106
View directory record Official record
Conditions
Pulmonary Disease, Critical Illness
Interventions
There is no intervention in this observational study
Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 120 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jan 13, 2025 · Synced Sep 28, 2026, 3:46 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Pilot Study to Identify the Mediators and Inflammatory Cell Surface Receptors Involved in Allergic Airway Inflammation

NCT00595491
View directory record Official record
Conditions
Asthma
Interventions
Bronchoscopy, Segmental Allergen Challenge, and Broncheoalveolar Lavage
Biological
Lead sponsor
Benjamin Medoff
Other
Eligibility
18 Years to 50 Years
Enrollment
313 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2029
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 24, 2025 · Synced Sep 28, 2026, 3:46 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Biomarkers for Vascular Contributions to Cognitive Impairment and Dementia Consortium

NCT06284213
View directory record Official record
Conditions
Cognitive Impairment, Dementia
Interventions
No interventions
Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
60 Years to 90 Years
Enrollment
1,892 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
17
States / cities
Los Angeles, California • Sacramento, California • San Francisco, California + 12 more
Source: ClinicalTrials.gov public record
Updated Jan 28, 2025 · Synced Sep 28, 2026, 3:46 PM EDT
Recruiting No phase listed Observational

Helmsley 3.0: Abbreviated MRE

NCT06533228
View directory record Official record
Conditions
Crohn's Disease
Interventions
Magnetic Resonance Imaging (MRI) or Magnetic Resonance Enterography (MRE)
Diagnostic Test
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
10 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
2
States / cities
Rochester, Minnesota • New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 26, 2025 · Synced Sep 28, 2026, 3:46 PM EDT
Completed No phase listed Observational

Real-World Betaseron Health Economic Outcomes Study for Relapsing Forms of Multiple Sclerosis

NCT01158183
View directory record Official record
Conditions
Multiple Sclerosis, Relapsing-Remitting
Interventions
BAY86-5046_Interferon-beta-1b
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 65 Years
Enrollment
226 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
27
States / cities
Many Locations, Alabama • Many Locations, California • Many Locations, Colorado + 24 more
Source: ClinicalTrials.gov public record
Updated Jul 7, 2010 · Synced Sep 28, 2026, 3:46 PM EDT
Completed Phase 3 Interventional Results available

Treatment for CI-DME in Eyes With Very Good VA Study

NCT01909791
View directory record Official record
Conditions
Diabetic Macular Edema
Interventions
Prompt Laser, Prompt aflibercept, Deferred laser, Deferred aflibercept
Procedure · Drug
Lead sponsor
Jaeb Center for Health Research
Other
Eligibility
18 Years and older
Enrollment
702 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
100
States / cities
Phoenix, Arizona • Tucson, Arizona • Little Rock, Arkansas + 84 more
Source: ClinicalTrials.gov public record
Updated Jul 30, 2020 · Synced Sep 28, 2026, 3:46 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Pessary Experience Study

NCT06021769
View directory record Official record
Conditions
Pelvic Organ Prolapse, Stress Urinary Incontinence
Interventions
Observational only
Other
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Sep 24, 2026 · Synced Sep 28, 2026, 3:46 PM EDT
Not listed No phase listed Observational

Skincare Products and Environmental Health

NCT04836364
View directory record Official record
Conditions
Gynecomastia, Endocrine System Diseases
Interventions
No Intervention
Other
Lead sponsor
Nutraceuticals Research Institute
Other
Eligibility
2 Years to 15 Years
Enrollment
2,000 participants
Timeline
2019 – 2022
U.S. locations
1
States / cities
Franklin, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 31, 2021 · Synced Sep 28, 2026, 3:46 PM EDT
Recruiting No phase listed Observational

Prospective Natural History Study of POLG Disease

NCT07775872
View directory record Official record
Conditions
PolG, Primary Mitochondrial Myopathy
Interventions
Not listed
Lead sponsor
The POLG Foundation
Other
Eligibility
Not listed
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
7
States / cities
San Diego, California • Aurora, Colorado • New York, New York + 4 more
Source: ClinicalTrials.gov public record
Updated Sep 14, 2026 · Synced Sep 28, 2026, 3:46 PM EDT
Completed No phase listed Observational

Heart Rate Changes in Subjects With Epilepsy

NCT01202669
View directory record Official record
Conditions
Epilepsy
Interventions
No intervention planned, observational study only.
Other
Lead sponsor
Cyberonics, Inc.
Industry
Eligibility
Not listed
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
2
States / cities
Gainesville, Florida • Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 6, 2014 · Synced Sep 28, 2026, 3:46 PM EDT
Completed No phase listed Observational

Cognitive Impairement In Frontotemporal Dementia

NCT03452956
View directory record Official record
Conditions
Frontotemporal Degeneration, Progressive Supranuclear Palsy, Multiple System Atrophy
Interventions
None-Observation Only
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
997 participants
Timeline
2003 – 2020
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 11, 2020 · Synced Sep 28, 2026, 3:46 PM EDT
Completed No phase listed Observational

Understanding Daily Changes in BDD Risk Using Smartphones

NCT04254575
View directory record Official record
Conditions
Body Dysmorphic Disorders
Interventions
None, observational study only (no interventions)
Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 20, 2023 · Synced Sep 28, 2026, 3:46 PM EDT
Completed No phase listed Observational

Prognostic Value of Point of Care Cardiac and Lung Ultrasound in COVID-19

NCT04379544
View directory record Official record
Conditions
Coronavirus, Respiratory Failure
Interventions
Observation only
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 100 Years
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 20, 2023 · Synced Sep 28, 2026, 3:46 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Development of a Novel Human In Vitro Sarcoidosis Model

NCT01857401
View directory record Official record
Conditions
Sarcoidosis
Interventions
No intervention, observational study only
Other
Lead sponsor
Elliott Crouser MD
Other
Eligibility
18 Years to 45 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2017
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 2, 2021 · Synced Sep 28, 2026, 3:46 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Formative Usability Assessment of Wireless Thermal Anisotropy Devices

NCT06040697
View directory record Official record
Conditions
Hydrocephalus
Interventions
Thermal Anisotropy
Device
Lead sponsor
Rhaeos, Inc.
Industry
Eligibility
5 Years to 80 Years
Enrollment
145 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 14, 2025 · Synced Sep 28, 2026, 3:46 PM EDT
Terminated No phase listed Observational

PSIL201 Long-term Follow-up Study: Psilocybin or Niacin / Major Depressive Disorder

NCT04353921
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
No intervention will be administered as part of this study.
Other
Lead sponsor
Usona Institute
Other
Eligibility
21 Years to 65 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Lauderhill, Florida
Source: ClinicalTrials.gov public record
Updated May 3, 2026 · Synced Sep 28, 2026, 3:46 PM EDT
Not listed No phase listed Observational

Blood Purification With Seraph 100 Microbind Affinity Blood Filter for Treatment of Severe COVID19 Observational Study

NCT04606498
View directory record Official record
Conditions
Covid19
Interventions
Observational
Other
Lead sponsor
Henry M. Jackson Foundation for the Advancement of Military Medicine
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
14
States / cities
Los Angeles, California • Aurora, Colorado • Orlando, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Oct 31, 2022 · Synced Sep 28, 2026, 3:46 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Multi-scale Modeling of Sleep Behaviors in Social Networks

NCT02846077
View directory record Official record
Conditions
Healthy Volunteers
Interventions
No intervention. Observation only
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
729 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 10, 2018 · Synced Sep 28, 2026, 3:46 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Nutritional Failure in Infants With Single Ventricle Congenital Heart Disease

NCT01821287
View directory record Official record
Conditions
Congenital Heart Disease, Nutritional Failure
Interventions
CHD
Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
Up to 12 Months
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 13, 2014 · Synced Sep 28, 2026, 3:46 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Video Review of the Frequency and Assessment of Head Impacts During the FIFA World Cup 2022TM

NCT05629169
View directory record Official record
Conditions
Head Injury, Concussion, Brain Injuries, Traumatic Brain Injury
Interventions
No intervention applied - observational study only
Other
Lead sponsor
Federation Internationale de Football Association
Other
Eligibility
Male only
Enrollment
832 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 10, 2025 · Synced Sep 28, 2026, 3:46 PM EDT
Completed No phase listed Observational

Chest Wall Repair of Rib Fractures After Trauma

NCT00926991
View directory record Official record
Conditions
Rib Fractures
Interventions
No intervention
Other
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 21, 2011 · Synced Sep 28, 2026, 3:46 PM EDT
Completed Phase 3 Interventional

Interleukin-2 or Observation Following Radiation Therapy, Combination Chemotherapy, and Peripheral Stem Cell Transplantation in Treating Patients With Recurrent Non-Hodgkin's Lymphoma

NCT00002649
View directory record Official record
Conditions
Recurrent Adult Burkitt Lymphoma, Recurrent Adult Diffuse Large Cell Lymphoma, Recurrent Adult Diffuse Mixed Cell Lymphoma, Recurrent Adult Diffuse Small Cleaved Cell Lymphoma, Recurrent Adult Immunoblastic Large Cell Lymphoma, Recurrent Grade 1 Follicular Lymphoma, Recurrent Grade 2 Follicular Lymphoma, Recurrent Grade 3 Follicular Lymphoma
Interventions
aldesleukin, filgrastim, cyclophosphamide, etoposide, radiation therapy, peripheral blood stem cell transplantation, bone marrow ablation with stem cell support
Biological · Drug · Radiation + 1 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
16 Years to 60 Years
Enrollment
206 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1995
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Feb 27, 2013 · Synced Sep 28, 2026, 3:46 PM EDT
Not yet recruiting No phase listed Observational

TDAP in Burn Patients (Group 2)

NCT07223684
View directory record Official record
Conditions
Sepsis, Burn Injury, Wound Healing, Critical Illness, Multiple Organ Dysfunction Syndrome
Interventions
Observational Cohort (No Intervention)
Other
Lead sponsor
Henry M. Jackson Foundation for the Advancement of Military Medicine
Other
Eligibility
18 Years to 80 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
3
States / cities
Tampa, Florida • Atlanta, Georgia • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 3, 2026 · Synced Sep 28, 2026, 3:46 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Adenotonsillectomy on Quality of Life in Children With Mild Obstructive Sleep Apnea

NCT01539278
View directory record Official record
Conditions
Sleep Apnea, Obstructive
Interventions
Adenotonsillectomy, Observation alone / no intervention
Procedure · Other
Lead sponsor
Eastern Virginia Medical School
Other
Eligibility
3 Years to 16 Years
Enrollment
113 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 4, 2015 · Synced Sep 28, 2026, 3:46 PM EDT