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Showing 1–24 of 751 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Retrospective Studies Clear all
Completed No phase listed Observational

A Retrospective Analysis of Pancreatic Injuries and Treatment Outcomes

NCT06227871
View directory record Official record
Conditions
Pancreatic Trauma, Pancreatic Duct Injury, Pancreas Necrosis, Pancreas Cyst, Pancreas; Fistula, Pancreas Abscess, Intra-Abdominal Abscess, Anastomotic Leak, Pancreas Injury
Interventions
Exploratory laparotomy
Procedure
Lead sponsor
Kern Medical Center
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Bakersfield, California
Source: ClinicalTrials.gov public record
Updated Jan 28, 2024 · Synced Jul 22, 2026, 2:01 AM EDT
Completed No phase listed Observational

Association of Genes to Resistance to Weight Loss in Obese Patients

NCT00858221
View directory record Official record
Conditions
Obesity, Metabolic Syndrome, Dyslipidemia
Interventions
Not listed
Lead sponsor
Interleukin Genetics, Inc.
Industry
Eligibility
21 Years to 70 Years
Enrollment
824 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 19, 2009 · Synced Jul 22, 2026, 2:01 AM EDT
Completed No phase listed Observational

Incidence and Mortality of Childhood Cancer Among Children of Farmer Pesticide Applications

NCT00339378
View directory record Official record
Conditions
Pesticide Exposure
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
Not listed
Enrollment
21,985 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2007
U.S. locations
3
States / cities
Bethesda, Maryland • Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Jul 22, 2026, 2:01 AM EDT
Completed No phase listed Observational Results available

Heparin-Induced Thrombocytopenia - Retrospective Analysis of Data on Incidence and Outcomes Study

NCT01178333
View directory record Official record
Conditions
Heparin Induced Thrombocytopenia
Interventions
Not listed
Lead sponsor
Carelon Research
Other
Eligibility
Not listed
Enrollment
668 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
21
States / cities
Iowa City, Iowa • New Orleans, Louisiana • Baltimore, Maryland + 12 more
Source: ClinicalTrials.gov public record
Updated May 21, 2015 · Synced Jul 22, 2026, 2:01 AM EDT
Completed No phase listed Observational Results available

Retrospective Analysis of Outcomes With a Pharmacogenomic Algorithm

NCT01632267
View directory record Official record
Conditions
Depression, Anxiety
Interventions
Not listed
Lead sponsor
Assurex Health Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
104 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 4, 2016 · Synced Jul 22, 2026, 2:01 AM EDT
Completed No phase listed Observational

Retrospective Case Study to Validate Existing Chemoresponse Marker Test in Ovarian, Peritoneal or Fallopian Cancer Cases

NCT01048814
View directory record Official record
Conditions
Ovarian Cancer, Peritoneal Cancer, Fallopian Tube Cancer
Interventions
ChemoFx
Other
Lead sponsor
Precision Therapeutics
Industry
Eligibility
18 Years and older · Female only
Enrollment
512 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 2, 2011 · Synced Jul 22, 2026, 2:01 AM EDT
Completed No phase listed Observational

Clinical Outcome of Triheptanoin Treatment in Patients With Long-chain Fatty Acid Oxidation Disorders (LC-FAOD) Treated Under Expanded Access Program

NCT03768817
View directory record Official record
Conditions
Long-chain Fatty Acid Oxidation Disorders (LC-FAOD)
Interventions
No Intervention
Other
Lead sponsor
Ultragenyx Pharmaceutical Inc
Industry
Eligibility
Not listed
Enrollment
20 participants
Timeline
2019 – 2020
U.S. locations
15
States / cities
Los Angeles, California • Orange, California • Palo Alto, California + 11 more
Source: ClinicalTrials.gov public record
Updated Aug 27, 2020 · Synced Jul 22, 2026, 2:01 AM EDT
Completed No phase listed Observational

A RETROspective Study of Patients With TK2d

NCT03701568
View directory record Official record
Conditions
Thymidine Kinase 2 (TK2)
Interventions
dC/dT
Drug
Lead sponsor
Zogenix MDS, Inc.
Industry
Eligibility
Not listed
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 31, 2023 · Synced Jul 22, 2026, 2:01 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Standalone Observational Study Assessing the Performance of an AI/ML Tech-based SaMD on Chest LDCT Images (REALITY)

NCT06576232
View directory record Official record
Conditions
High Risk Cancer
Interventions
Median LCS
Device
Lead sponsor
Median Technologies
Industry
Eligibility
50 Years to 80 Years
Enrollment
1,147 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
3
States / cities
Philadelphia, Pennsylvania • Memphis, Tennessee • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 27, 2024 · Synced Jul 22, 2026, 2:01 AM EDT
Completed No phase listed Observational

A Study of Accelerated Guideline-Directed Medical Therapy for Heart Failure

NCT07217106
View directory record Official record
Conditions
Heart Failure
Interventions
Not listed
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
342 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
East Hanover, New Jersey
Source: ClinicalTrials.gov public record
Updated Oct 14, 2025 · Synced Jul 22, 2026, 2:01 AM EDT
Completed No phase listed Observational

Low Dose Vitamin C in Burns >20% Compared to Previous Studies With High Dose Vitamin C

NCT05612867
View directory record Official record
Conditions
Burns, Ascorbic Acid Deficiency, Burn Shock, Burn Degree Second, Burn Degree Third, Fluid and Electrolyte Imbalance
Interventions
Vitamin C
Dietary Supplement
Lead sponsor
Arrowhead Regional Medical Center
Other
Eligibility
Not listed
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Colton, California
Source: ClinicalTrials.gov public record
Updated Nov 9, 2022 · Synced Jul 22, 2026, 2:01 AM EDT
Completed No phase listed Observational Results available

Retrospective Study in Patients Receiving Two or More OZURDEX® Injections for Retinal Vein Occlusion (RVO)

NCT01411696
View directory record Official record
Conditions
Retinal Vein Occlusion, Macular Edema
Interventions
dexamethasone intravitreal implant 0.7 mg
Drug
Lead sponsor
Allergan
Industry
Eligibility
18 Years and older
Enrollment
289 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Apr 15, 2013 · Synced Jul 22, 2026, 2:01 AM EDT
Completed No phase listed Observational

CryoValve® SG Aortic Human Heart Valve Combination Study

NCT01236469
View directory record Official record
Conditions
Aortic Valve Stenosis, Aortic Valve Insufficiency
Interventions
Echocardiogram
Procedure
Lead sponsor
CryoLife, Inc.
Industry
Eligibility
6 Years to 27 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
9
States / cities
Phoenix, Arizona • Los Angeles, California • San Diego, California + 6 more
Source: ClinicalTrials.gov public record
Updated Aug 18, 2015 · Synced Jul 22, 2026, 2:01 AM EDT
Completed No phase listed Observational Results available

This is a Retrospective Observational Study Looking at the Characteristics and Outcomes of Participants Taking Inflectra Using the CorEvitas Rheumatoid Arthritis Registry

NCT05375942
View directory record Official record
Conditions
Arthritis, Rheumatoid
Interventions
Inflectra
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
255 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Collegeville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 11, 2024 · Synced Jul 22, 2026, 2:01 AM EDT
Completed No phase listed Observational

Retrospective Review of FDG PET MRI Management of Patients With Muscle Invasive Bladder Cancer

NCT03327883
View directory record Official record
Conditions
Bladder Cancer
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 8, 2021 · Synced Jul 22, 2026, 2:01 AM EDT
Terminated Phase 2Phase 3 Interventional Results available

Retrospective Study of the Effectiveness and Safety of Niacin and Steroid Eye Drops for Retinal Vein Occlusions

NCT00500045
View directory record Official record
Conditions
Central Retinal Vein Occlusion, Branch Retinal Vein Occlusion
Interventions
nicotinic acid
Drug
Lead sponsor
Palo Alto Medical Foundation
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2016
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Nov 12, 2019 · Synced Jul 22, 2026, 2:01 AM EDT
Completed No phase listed Observational

Digital Pathology and AI for Liver Outcomes in MASLD (DPAILO-2)

NCT06493253
View directory record Official record
Conditions
Metabolic Dysfunction-associated Steatotic Liver Disease
Interventions
Digital Pathology FibroNest Phenotypic Fibrosis Composite Score (Ph-FCS)
Diagnostic Test
Lead sponsor
PharmaNest, Inc
Industry
Eligibility
18 Years to 90 Years
Enrollment
1,578 participants
Timeline
2025 – 2026
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 22, 2026 · Synced Jul 22, 2026, 2:01 AM EDT
Active, not recruiting No phase listed Observational

TeleMAb Retrospective Cohort Study

NCT07405294
View directory record Official record
Conditions
Medication Abortion, Telemedicine
Interventions
Telemedicine Medication Abortion
Other
Lead sponsor
Columbia University
Other
Eligibility
Female only
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 11, 2026 · Synced Jul 22, 2026, 2:01 AM EDT
Completed No phase listed Observational

UltraMTP in Adult Trauma Patients Undergoing Surgery Within 24 Hours: Effects on Mortality and Clinical Outcomes

NCT04866953
View directory record Official record
Conditions
Trauma, Blood Transfusion Complication, Death
Interventions
Blood transfusion
Other
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older
Enrollment
3,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 4, 2024 · Synced Jul 22, 2026, 2:01 AM EDT
Completed No phase listed Observational

Study of Cases of Serious Infections Due to Carbapenem-Resistant Enterobacteriaceae

NCT02420366
View directory record Official record
Conditions
Urinary Tract Infection, Complicated, Acute Pyelonephritis, Hospital Acquired Bacterial Pneumonia, Ventilator-associated Bacterial Pneumonia, Bacteremia
Interventions
Not listed
Lead sponsor
Rempex (a wholly owned subsidiary of Melinta Therapeutics, Inc.)
Industry
Eligibility
18 Years and older
Enrollment
257 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
12
States / cities
Chicago, Illinois • Evanston, Illinois • Detroit, Michigan + 8 more
Source: ClinicalTrials.gov public record
Updated May 1, 2018 · Synced Jul 22, 2026, 2:01 AM EDT
Completed No phase listed Observational

Hemp Oil + User Experience Study

NCT04026672
View directory record Official record
Conditions
General Wellbeing, Gastrointestinal Health, Physical Discomfort, Sleep, Mood
Interventions
Not listed
Lead sponsor
Thorne HealthTech, Inc
Industry
Eligibility
18 Years and older
Enrollment
201 participants
Timeline
2020
U.S. locations
1
States / cities
Summerville, South Carolina
Source: ClinicalTrials.gov public record
Updated Feb 9, 2020 · Synced Jul 22, 2026, 2:01 AM EDT
Completed No phase listed Observational

RANS. Study in Patients With Severe Eosinophilic Asthma and Nasal Polyps.

NCT05180357
View directory record Official record
Conditions
Severe Eosinophilic Asthma, Nasal Polyps
Interventions
FASENRA(benralizumab)
Other
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 99 Years
Enrollment
273 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
8
States / cities
Centennial, Colorado • Denver, Colorado • Glendale, New York + 5 more
Source: ClinicalTrials.gov public record
Updated Apr 18, 2023 · Synced Jul 22, 2026, 2:01 AM EDT
Recruiting Not applicable Interventional

Retrospective-Prospective PNS Study

NCT06845631
View directory record Official record
Conditions
Chronic Pain
Interventions
PNS device, observational study, no intervention during study
Device
Lead sponsor
Curonix LLC
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 24, 2025 · Synced Jul 22, 2026, 2:01 AM EDT
Recruiting No phase listed Observational

Galvanize Prospective/Retrospective Pulsed Electric Field Device Registry

NCT05851430
View directory record Official record
Conditions
Soft Tissue Lesion
Interventions
PEF ablation
Device
Lead sponsor
Galvanize Therapeutics, Inc.
Industry
Eligibility
18 Years to 100 Years
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
11
States / cities
Gilbert, Arizona • Rancho Mirage, California • Naples, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Jul 22, 2026, 2:01 AM EDT