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ClinicalTrials.gov public records Last synced Oct 29, 2026, 5:38 PM EDT

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

Showing 49–72 of 2,011 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Observational Study Clear all
Completed No phase listed Observational

Observational and Epidemiologic Study of the Disease Course and Unmet Needs in Children With Symptomatic Moderate to Severe Allergic Asthma

NCT01362621
View directory record Official record
Conditions
Moderate to Severe Allergic Asthma
Interventions
Not listed
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
6 Years to 11 Years
Enrollment
474 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2008
U.S. locations
50
States / cities
Birmingham, Alabama • Crescent City, California • Fresno, California + 47 more
Source: ClinicalTrials.gov public record
Updated Jun 16, 2011 · Synced Oct 29, 2026, 5:38 PM EDT
Terminated Phase 4 Interventional Results available

Thyroid Function of Pediatric Subjects Following Isovue® Administration

NCT03779906
View directory record Official record
Conditions
Hypothyroidism
Interventions
Isovue
Drug
Lead sponsor
Bracco Diagnostics, Inc
Industry
Eligibility
Up to 3 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
4
States / cities
Phoenix, Arizona • Omaha, Nebraska • Akron, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 30, 2025 · Synced Oct 29, 2026, 5:38 PM EDT
Completed No phase listed Observational

A Prospective Observational Study to Evaluate Long-term Changes in Cartilage Morphology in Subjects Who Previously Received TPX-100 or Placebo in Study TPX-100-1 for Patellar Osteoarthritis Involving Both Knees

NCT03125499
View directory record Official record
Conditions
Mild to Moderate Knee OA
Interventions
Previous treated with TPX-100
Other
Lead sponsor
OrthoTrophix, Inc
Industry
Eligibility
25 Years to 75 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Covina, California
Source: ClinicalTrials.gov public record
Updated Apr 5, 2018 · Synced Oct 29, 2026, 5:38 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Cerebral Blood Flow Evaluation With Trancranial Doppler After Interscalene Nerve Block

NCT04642612
View directory record Official record
Conditions
Regional Anesthesia, Horner Syndrome, Cerebral Blood Flow
Interventions
TCD Measurement
Device
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 85 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Sep 16, 2021 · Synced Oct 29, 2026, 5:38 PM EDT
Completed No phase listed Observational

Effect of CREON on Exocrine Pancreatic Insufficiency (EPI) Symptoms

NCT04949828
View directory record Official record
Conditions
Chronic Pancreatitis
Interventions
CREON
Drug
Lead sponsor
AbbVie
Industry
Eligibility
18 Years and older
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
6
States / cities
Stanford, California • Gainesville, Florida • Baltimore, Maryland + 3 more
Source: ClinicalTrials.gov public record
Updated Mar 28, 2024 · Synced Oct 29, 2026, 5:38 PM EDT
Completed No phase listed Observational Results available

Cannabis Use in Cancer Patients

NCT03617692
View directory record Official record
Conditions
Solid Tumor, Adult
Interventions
Not listed
Lead sponsor
University of Colorado, Denver
Other
Eligibility
21 Years to 100 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
2
States / cities
Aurora, Colorado • Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 11, 2024 · Synced Oct 29, 2026, 5:38 PM EDT
Completed No phase listed Observational

Tysabri Observational Cohort Study - Multiple Sclerosis (MS) Registries

NCT03399981
View directory record Official record
Conditions
Progressive Multifocal Leukoencephalopathy
Interventions
Tysabri
Biological
Lead sponsor
Biogen
Industry
Eligibility
Not listed
Enrollment
80,327 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 19, 2024 · Synced Oct 29, 2026, 5:38 PM EDT
Recruiting No phase listed Observational

Tezspire Cardiac Events PASS

NCT06951867
View directory record Official record
Conditions
Cardiovascular Events, MACE
Interventions
Tezepelumab
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
12 Years to 130 Years
Enrollment
16,640 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Wilmington, Delaware
Source: ClinicalTrials.gov public record
Updated Sep 18, 2026 · Synced Oct 29, 2026, 5:38 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Kesimpta (Ofatumumab) Pregnancy Registry

NCT05634967
View directory record Official record
Conditions
Multiple Sclerosis, Pregnancy
Interventions
Kesimpta
Other
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 100 Years
Enrollment
725 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2033
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jan 14, 2025 · Synced Oct 29, 2026, 5:38 PM EDT
Recruiting No phase listed Observational

Validation of Effectiveness on NaturalCycles Users

NCT07566793
View directory record Official record
Conditions
Contraception
Interventions
Log daily intercourse information, Natural Cycles application
Behavioral · Device
Lead sponsor
Natural Cycles
Industry
Eligibility
18 Years to 35 Years · Female only
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Oct 29, 2026, 5:38 PM EDT
Completed No phase listed Observational

To Assess the Effectiveness and Safety of Zepzelca in Adult Patients With Extensive Stage Small Cell Lung Cancer (SCLC)

NCT04894591
View directory record Official record
Conditions
Extensive-stage Small-cell Lung Cancer
Interventions
Zepzelca
Drug
Lead sponsor
Jazz Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
272 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
32
States / cities
Huntsville, Alabama • Norwich, Connecticut • Brooksville, Florida + 29 more
Source: ClinicalTrials.gov public record
Updated Feb 27, 2026 · Synced Oct 29, 2026, 5:38 PM EDT
Active, not recruiting No phase listed Observational

A 5-year Longitudinal Observational Study of Patients Undergoing Therapy for Inflammatory Bowel Disease

NCT03251118
View directory record Official record
Conditions
Inflammatory Bowel Diseases, Crohn's Disease, Ulcerative Colitis, Indeterminate Colitis
Interventions
Not listed
Lead sponsor
Target PharmaSolutions, Inc.
Industry
Eligibility
2 Years and older
Enrollment
15,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
37
States / cities
Lancaster, California • Mission Hills, California • Sacramento, California + 33 more
Source: ClinicalTrials.gov public record
Updated Mar 17, 2026 · Synced Oct 29, 2026, 5:38 PM EDT
Completed No phase listed Observational

Observational Study to Evaluate and Compare the Rate and Extent of Inflammation After a Single Intravitreal Injection of Ranibizumab vs. a Single Intravitreal Injection of Aflibercept in Treatment Naive and Treatment Experienced Patients.

NCT01942213
View directory record Official record
Conditions
Neovascular Age Related Macular Degeneration
Interventions
Not listed
Lead sponsor
Prism Vision Group
Other
Eligibility
65 Years to 90 Years
Enrollment
136 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Edison, New Jersey
Source: ClinicalTrials.gov public record
Updated Jun 1, 2016 · Synced Oct 29, 2026, 5:38 PM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

Imaging Characterization of the Biomechanical Coupling of Brain and Skull

NCT05675423
View directory record Official record
Conditions
Traumatic Brain Injury (Tbi), Traumatic Meningeal Enhancement (Tme)
Interventions
Not listed
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
21 Years to 65 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 3, 2024 · Synced Oct 29, 2026, 5:38 PM EDT
Recruiting Phase 4 Interventional

An Open-Label Treatment With Randomization Observation, Investigator-Initiated Study, on the Duration and Efficacy of Jornay PM (Methylphenidate Hydrochloride Extended-Release Capsules) on Adult ADHD Symptoms and Executive Function and Emotional Regulation Throughout the Day Into Early Evening

NCT06577779
View directory record Official record
Conditions
Attention-deficit/Hyperactivity Disorder
Interventions
Methylphenidate Hydrochloride Extended Release Capsule
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 60 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Oct 29, 2026, 5:38 PM EDT
Completed Phase 4 Interventional Results available

QL Block With Exparel in Colectomy

NCT03827291
View directory record Official record
Conditions
Laparotomy, Colectomy
Interventions
Exparel, Thoracic epidural analgesia
Drug · Other
Lead sponsor
Duke University
Other
Eligibility
18 Years to 85 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 16, 2025 · Synced Oct 29, 2026, 5:38 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Huntington's Disease Biobank: Advancing Remote Monitoring and Deep Phenotyping

NCT06941662
View directory record Official record
Conditions
Huntington Disease
Interventions
computer vision, remote monitoring, blood, urine, wrist bands, mobile-app
Diagnostic Test
Lead sponsor
Stanford University
Other
Eligibility
Not listed
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2035
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Apr 24, 2025 · Synced Oct 29, 2026, 5:38 PM EDT
Completed Not applicable Interventional Results available

Battlefield Auricular Acupressure (BAApress) Feasibility Study

NCT05939388
View directory record Official record
Conditions
Pain
Interventions
Auricular Acupressure Pads
Device
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 2, 2025 · Synced Oct 29, 2026, 5:38 PM EDT
Completed No phase listed Observational Results available

A Natural History of the Progression of Stargardt Disease: Retrospective and Prospective Studies

NCT01977846
View directory record Official record
Conditions
Stargardt Disease
Interventions
Not listed
Lead sponsor
Foundation Fighting Blindness
Other
Eligibility
6 Years and older
Enrollment
259 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
6
States / cities
Baltimore, Maryland • Cleveland, Ohio • Philadelphia, Pennsylvania + 2 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2019 · Synced Oct 29, 2026, 5:38 PM EDT
Withdrawn No phase listed Observational

BK Virus Post-Kidney Transplant: New Practice Versus Traditional Approach

NCT02758288
View directory record Official record
Conditions
BK Virus Infection, BK Virus Nephropathy
Interventions
New Protocol - BK viremia or BK virus nephropathy, Standard Protocol - BK viremia or BK virus nephropathy
Other
Lead sponsor
Loma Linda University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2022
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Oct 5, 2020 · Synced Oct 29, 2026, 5:38 PM EDT
Completed No phase listed Observational

Shoulder Symptom Irritability Scale: A Single-Blinded Observational Study

NCT02995941
View directory record Official record
Conditions
Shoulder Pain, Pain
Interventions
Not listed
Lead sponsor
St. Luke's Hospital and Health Network, Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
138 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
17
States / cities
Washington, New Jersey • Allentown, Pennsylvania • Bath, Pennsylvania + 11 more
Source: ClinicalTrials.gov public record
Updated Sep 20, 2019 · Synced Oct 29, 2026, 5:38 PM EDT
Completed No phase listed Observational

AAV Gene Therapy Screening/Observational Protocol (ECLIPSE)

NCT04272554
View directory record Official record
Conditions
Hemophilia B, Blood Coagulation Disorders, Inherited, Blood Coagulation Disorder, Haematologic Disease
Interventions
Not listed
Lead sponsor
Spur Therapeutics
Industry
Eligibility
16 Years and older · Male only
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
17
States / cities
Phoenix, Arizona • Los Angeles, California • Sacramento, California + 14 more
Source: ClinicalTrials.gov public record
Updated Nov 4, 2022 · Synced Oct 29, 2026, 5:38 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Studying Genes Associated With Non-Hodgkin Lymphoma in Young Patients

NCT01623856
View directory record Official record
Conditions
Childhood Burkitt Lymphoma, Childhood Lymphoblastic Lymphoma
Interventions
laboratory biomarker analysis
Other
Lead sponsor
Children's Oncology Group
Network
Eligibility
Up to 20 Years
Enrollment
483 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Monrovia, California
Source: ClinicalTrials.gov public record
Updated May 7, 2015 · Synced Oct 29, 2026, 5:38 PM EDT
Completed No phase listed Observational

Long-term Study on Anti-HBV Effect of Tenofovir and Resistance Surveillance in Asian-American Adult Patients

NCT01267162
View directory record Official record
Conditions
Chronic Hepatitis B
Interventions
Not listed
Lead sponsor
Medical Procare PLLC
Other
Eligibility
18 Years to 75 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
5
States / cities
Los Angeles, California • San Jose, California • Flushing, New York + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 16, 2016 · Synced Oct 29, 2026, 5:38 PM EDT