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ClinicalTrials.gov public records Last synced Oct 20, 2026, 4:49 AM EDT

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Showing 577–600 of 694 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Prospective Observational Study Clear all
Completed No phase listed Observational

Study to Determine if Avonex and Rebif Work Comparably Well in Subjects With Relapsing Multiple Sclerosis

NCT00599274
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Interferon beta-1a
Drug
Lead sponsor
Biogen
Industry
Eligibility
18 Years to 50 Years
Enrollment
136 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2003
U.S. locations
8
States / cities
Los Angeles, California • Walnut Creek, California • Shreveport, Louisiana + 5 more
Source: ClinicalTrials.gov public record
Updated Jan 27, 2010 · Synced Oct 20, 2026, 4:49 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers Results available

Pulmonary Function Using Non-invasive Forced Oscillometry

NCT03346343
View directory record Official record
Conditions
Infant, Premature, Diseases, Infant, Newborn, Diseases, Bronchopulmonary Dysplasia, Respiratory Distress Syndrome, Newborn, Meconium Aspiration Syndrome, Transient Tachypnea of the Newborn
Interventions
Non-invasive forced airway oscillometry
Device
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
1 Day to 2 Years
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2027
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jan 27, 2026 · Synced Oct 20, 2026, 4:49 AM EDT
Completed No phase listed Observational

Observational Study of C. Diff in Post-Transplant Patients

NCT02747017
View directory record Official record
Conditions
Clostridium Difficile
Interventions
Not listed
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
4
States / cities
Minneapolis, Minnesota • Rochester, Minnesota • Philadelphia, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2019 · Synced Oct 20, 2026, 4:49 AM EDT
Completed No phase listed Observational

Observational Study Of An Electronic Questionnaire In Patients With Chronic Obstructive Pulmonary Disease (COPD)

NCT00259909
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive, Infections, Bacterial
Interventions
GSK questionnaire, St. George's Respiratory Questionnaire, Acute Short Form 12 version 2, Global Efficacy questionnaire
Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
40 Years and older
Enrollment
259 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
79
States / cities
Birmingham, Alabama • Hueytown, Alabama • Jasper, Alabama + 69 more
Source: ClinicalTrials.gov public record
Updated Oct 12, 2017 · Synced Oct 20, 2026, 4:49 AM EDT
Completed No phase listed Observational

A Prospective, Observational Study of Individuals Who Seroconvert While Taking Truvada® for Pre-Exposure Prophylaxis (PrEP)

NCT01902472
View directory record Official record
Conditions
HIV
Interventions
Not listed
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
172 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Foster City, California
Source: ClinicalTrials.gov public record
Updated Jul 14, 2020 · Synced Oct 20, 2026, 4:49 AM EDT
Terminated No phase listed Observational

PRODIGY Registry in NYHA Class III Heart Failure Patients

NCT03623165
View directory record Official record
Conditions
Heart Failure NYHA Class III
Interventions
Cordella™ Heart Failure System
Device
Lead sponsor
Endotronix, Inc.
Industry
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
4
States / cities
Los Angeles, California • San Francisco, California • Lebanon, New Hampshire + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 19, 2019 · Synced Oct 20, 2026, 4:49 AM EDT
Completed No phase listed Observational

Comparative Effectiveness of Treatment Strategies for Primary Open-Angle Glaucoma

NCT01645319
View directory record Official record
Conditions
Open Angle Glaucoma
Interventions
Not listed
Lead sponsor
Agency for Healthcare Research and Quality (AHRQ)
Federal
Eligibility
18 Years and older
Enrollment
2,597 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 8, 2014 · Synced Oct 20, 2026, 4:49 AM EDT
Terminated Early Phase 1 Interventional

The Effects of Tasimelteon in Participants With REM Behavior Disorder (RBD)

NCT05922995
View directory record Official record
Conditions
REM Behavior Disorder
Interventions
Tasimelteon
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 85 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 9, 2025 · Synced Oct 20, 2026, 4:49 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

A Longitudinal Study of Effect of Copaxone in RRMS Over 24 Months

NCT01695434
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
MRI
Other
Lead sponsor
University at Buffalo
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Mar 25, 2013 · Synced Oct 20, 2026, 4:49 AM EDT
Completed No phase listed Observational

MatrixRIB Implants for Surgical Stabilization of Flail Chest Injuries: A Registry

NCT00810251
View directory record Official record
Conditions
Flail Chest
Interventions
MatrixRIB (FDA Approval # K081623)
Device
Lead sponsor
Legacy Biomechanics Laboratory
Other
Eligibility
21 Years to 80 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jul 6, 2011 · Synced Oct 20, 2026, 4:49 AM EDT
Completed Not applicable Interventional

Comparison of Culture Media for in Vitro Embryo Development

NCT02846012
View directory record Official record
Conditions
Infertility
Interventions
CSCM2
Other
Lead sponsor
Ovation Fertility
Other
Eligibility
18 Years to 51 Years · Female only
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Dec 27, 2017 · Synced Oct 20, 2026, 4:49 AM EDT
Completed No phase listed Observational

GNE-Myopathy Disease Monitoring Program (GNEM-DMP): A Registry and Prospective Observational Natural History Study to Assess GNE Myopathy or Hereditary Inclusion Body Myopathy (HIBM)

NCT01784679
View directory record Official record
Conditions
Hereditary Inclusion Body Myopathy, GNE Myopathy, Nonaka Disease, Quadriceps Sparing Myopathy (QSM), Distal Myopathy With Rimmed Vacuoles (DMRV)
Interventions
Not listed
Lead sponsor
Ultragenyx Pharmaceutical Inc
Industry
Eligibility
Not listed
Enrollment
319 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Irvine, California
Source: ClinicalTrials.gov public record
Updated Apr 27, 2018 · Synced Oct 20, 2026, 4:49 AM EDT
Completed No phase listed Observational Results available

A Prospective Observational Study of Adult Strabismus

NCT02510040
View directory record Official record
Conditions
Convergence Insufficiency, Divergence Insufficiency, Hypertropia
Interventions
Prism, Orthoptic Exercises, Eye Muscle Surgery, Botox Injection
Device · Other · Procedure
Lead sponsor
Jaeb Center for Health Research
Other
Eligibility
18 Years and older
Enrollment
217 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 6, 2023 · Synced Oct 20, 2026, 4:49 AM EDT
Completed No phase listed Observational

Prospective Observational Study of Difficult Intravenous Access in the Operating Room

NCT03591016
View directory record Official record
Conditions
Difficult Intravenous Access
Interventions
Recording number of IV attempts
Other
Lead sponsor
Ralph Beltran
Other
Eligibility
Up to 18 Years
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 15, 2021 · Synced Oct 20, 2026, 4:49 AM EDT
Terminated No phase listed Observational

Observational Study of Persistence on Bafiertam Treatment in Routine Clinical Practice

NCT05978531
View directory record Official record
Conditions
Relapsing Remitting Multiple Sclerosis
Interventions
Monomethyl Fumarate
Drug
Lead sponsor
Banner Life Sciences LLC
Industry
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
9
States / cities
Gilbert, Arizona • Phoenix, Arizona • Scottsdale, Arizona + 5 more
Source: ClinicalTrials.gov public record
Updated Mar 6, 2025 · Synced Oct 20, 2026, 4:49 AM EDT
Recruiting No phase listed Observational

Impact of IV Iron on Bleeding Symptoms in Iron Deficient Patients With Inherited Bleeding Disorders

NCT07083583
View directory record Official record
Conditions
Bleeding Disorders, Iron, Platelet, Bleeding
Interventions
IV Iron (standard of care)
Drug
Lead sponsor
Nicoletta C Machin
Other
Eligibility
15 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 6, 2026 · Synced Oct 20, 2026, 4:49 AM EDT
Not listed No phase listed Observational

An Observational Study of Pruritus Amongst Hemodialysis Patients

NCT00715260
View directory record Official record
Conditions
Pruritus, Kidney Failure, Chronic, Hemodialysis, Chronic Disease
Interventions
Not listed
Lead sponsor
Acologix, Inc.
Industry
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
5
States / cities
Augusta, Georgia • Metaire, Louisiana • Springfield, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 15, 2008 · Synced Oct 20, 2026, 4:49 AM EDT
Recruiting No phase listed Observational

Prospective Study to Assess a Diagnostic Aid for Cancer

NCT07046260
View directory record Official record
Conditions
Cancer
Interventions
Blood sample collection
Other
Lead sponsor
Harbinger Health
Industry
Eligibility
45 Years and older
Enrollment
2,450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
42
States / cities
Coronado, California • Poway, California • San Diego, California + 38 more
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Oct 20, 2026, 4:49 AM EDT
Not listed No phase listed Observational

Observational Study of Sepsis and Pneumonia to Develop Diagnostic Tests

NCT00258869
View directory record Official record
Conditions
Sepsis, Septicemia, Sepsis Syndrome, Shock, Septic, Community Acquired Pneumonia
Interventions
Not listed
Lead sponsor
National Center for Genome Resources
Other
Eligibility
6 Years and older
Enrollment
1,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
3
States / cities
Detroit, Michigan • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 9, 2010 · Synced Oct 20, 2026, 4:49 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Prospective Observational Study of Peri-implantation Serum hCG Levels

NCT01184469
View directory record Official record
Conditions
Infertility
Interventions
Not listed
Lead sponsor
Bruce Shapiro M.D.
Industry
Eligibility
18 Years and older · Female only
Enrollment
451 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Oct 15, 2012 · Synced Oct 20, 2026, 4:49 AM 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 20, 2026, 4:49 AM EDT
Active, not recruiting No phase listed Observational

Prospective, Multi-Center, Observational, Whole Blood Specimen Collection Study in Participants With Rheumatoid Arthritis With Inadequate Response or Intolerance to a DMARD Starting a New bDMARD or tsDMARD Treatment +/- csDMARD

NCT05936970
View directory record Official record
Conditions
Rheumatoid Arthritis
Interventions
Not listed
Lead sponsor
Aqtual, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,410 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
42
States / cities
Phoenix, Arizona • Apple Valley, California • Covina, California + 38 more
Source: ClinicalTrials.gov public record
Updated Jul 21, 2026 · Synced Oct 20, 2026, 4:49 AM EDT
Completed No phase listed Observational

Study Evaluating the Use of MRI on CMS Patients

NCT02513056
View directory record Official record
Conditions
Pacemaker, Implantable Cardioverter Defibrillators
Interventions
MRI
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
872 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 14, 2024 · Synced Oct 20, 2026, 4:49 AM EDT
Active, not recruiting No phase listed Observational

A Study of miRNA 371 in Patients With Germ Cell Tumors

NCT04435756
View directory record Official record
Conditions
Germ Cell Tumor, Metachronous Malignant Neoplasm, Seminoma, Stage I Testicular Cancer AJCC v8, Stage IA Testicular Cancer AJCC v8, Stage IB Testicular Cancer AJCC v8, Stage IS Testicular Cancer AJCC v8
Interventions
Biomarker Analysis, Blood Product Collection
Other · Procedure
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
18 Years and older
Enrollment
956 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2028
U.S. locations
412
States / cities
Gilbert, Arizona • Kingman, Arizona • Tucson, Arizona + 261 more
Source: ClinicalTrials.gov public record
Updated Mar 12, 2026 · Synced Oct 20, 2026, 4:49 AM EDT