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Showing 25–40 of 16 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Penicillin Clear all
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Penicillin Allergy Testing in STD Clinics

NCT04620746
View directory record Official record
Conditions
Penicillin Allergy
Interventions
Penicillin Major Determinant (PrePen) Skin Testing, Direct Oral challenge
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
284 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
2
States / cities
New Orleans, Louisiana • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 20, 2023 · Synced Jul 23, 2026, 12:07 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Providing Stratification of Low Risk Penicillin Allergies on Penicillin Allergy Label Removal in ICU Setting

NCT03702283
View directory record Official record
Conditions
Penicillin Allergy
Interventions
Penicillin Allergic Risk Stratification Best Practice Alert
Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 99 Years
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 12, 2022 · Synced Jul 23, 2026, 12:07 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Allergy Testing of Patients Labeled as Penicillin Allergic

NCT02983630
View directory record Official record
Conditions
Drug Hypersensitivity
Interventions
Penicillin allergy testing
Other
Lead sponsor
Albany Medical College
Other
Eligibility
18 Years and older
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Albany, New York
Source: ClinicalTrials.gov public record
Updated Jan 8, 2018 · Synced Jul 23, 2026, 12:07 AM EDT
Terminated Early Phase 1 Interventional Accepts healthy volunteers

Oral Penicillin and Penicillin Levels in Venous Umbilical Cord Blood

NCT00823433
View directory record Official record
Conditions
Group B Streptococcus
Interventions
oral penicillin V
Drug
Lead sponsor
Corewell Health East
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Royal Oak, Michigan
Source: ClinicalTrials.gov public record
Updated Nov 3, 2016 · Synced Jul 23, 2026, 12:07 AM EDT
Recruiting Phase 4 Interventional

Allergy Delabeling in Antibiotic Stewardship - Intervention

NCT07133074
View directory record Official record
Conditions
Beta Lactam Allergy, Hematologic Malignancy
Interventions
RENEW-IN Algorithm for assessment of a beta-lactam intervention, EMR Review
Diagnostic Test · Other
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
18 Years and older
Enrollment
3,800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Jul 23, 2026, 12:07 AM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers

LIMIT Trial - Lidocaine With Intramuscular Injection of Benzathine Penicillin G for Treponema Pallidum Treatment

NCT06391125
View directory record Official record
Conditions
Syphilis Infection, Benzathine Penicillin Adverse Reaction
Interventions
normal Saline, Lidocaine
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 24, 2025 · Synced Jul 23, 2026, 12:07 AM EDT
Active, not recruiting Phase 2 Interventional

Linezolid for Syphilis Pilot Study

NCT05548426
View directory record Official record
Conditions
Syphilis
Interventions
Group B, Linezolid 10d, Group A, Penicillin
Drug
Lead sponsor
University of Southern California
Other
Eligibility
16 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
5
States / cities
Chicago, Illinois • Jackson, Mississippi • Greensboro, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 11, 2026 · Synced Jul 23, 2026, 12:07 AM EDT
Completed No phase listed Observational Results available

Perioperative Antibiotic Choices for Surgical Prophylaxis in Penicillin-allergic Pediatric Patients

NCT02036840
View directory record Official record
Conditions
Penicillin Allergy
Interventions
Antibiotic
Drug
Lead sponsor
Joseph D. Tobias
Other
Eligibility
Not listed
Enrollment
513 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 21, 2015 · Synced Jul 23, 2026, 12:07 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Inpatient Penicillin Allergy Delabeling Study

NCT05020327
View directory record Official record
Conditions
Penicillin Allergy, Penicillin Sensitivity, Penicillin Reaction, Penicillin Intolerance
Interventions
Graded Oral Amoxicillin Challenge, De-labelling in electronic medical record, Referral to Allergy Immunology/Retention of Allergy Label
Drug · Other
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
3 Years to 18 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 19, 2023 · Synced Jul 23, 2026, 12:07 AM EDT
Completed Phase 4 Interventional

PERSPECTIVE: Telithromycin - Acute Exacerbation of Chronic Bronchitis

NCT00132938
View directory record Official record
Conditions
Chronic Bronchitis
Interventions
telithromycin
Drug
Lead sponsor
Sanofi
Industry
Eligibility
35 Years and older
Enrollment
5,660 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
1
States / cities
Bridgewater, New Jersey
Source: ClinicalTrials.gov public record
Updated Jun 7, 2011 · Synced Jul 23, 2026, 12:07 AM EDT
Completed Phase 4 Interventional Results available

Phase 4 Comparative Trial of Benzathine Penicillin G for Treatment of Early Syphilis in Subjects With or Without HIV Infection

NCT03637660
View directory record Official record
Conditions
Syphilis
Interventions
Benzathine Penicillin
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 99 Years
Enrollment
249 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
10
States / cities
Birmingham, Alabama • Atlanta, Georgia • Indianapolis, Indiana + 7 more
Source: ClinicalTrials.gov public record
Updated Jan 13, 2025 · Synced Jul 23, 2026, 12:07 AM EDT
Terminated Phase 4 Interventional

Oral Penicillin Challenge and Allergy De-labeling in Children

NCT05563610
View directory record Official record
Conditions
Penicillin Allergy
Interventions
Amoxicillin 500mg
Drug
Lead sponsor
Phoenix Children's Hospital
Other
Eligibility
2 Years to 17 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Jun 13, 2024 · Synced Jul 23, 2026, 12:07 AM EDT
Completed Phase 3 Interventional

New Antibiotic to Treat Patients With Community-acquired Pneumonia Due to a Specific Bacteria (S. Pneumoniae Pneumonia)

NCT00035269
View directory record Official record
Conditions
Pneumonia, Pneumococcal, Community Acquired Infections, Gram-positive Bacterial Infections
Interventions
Antibiotic
Drug
Lead sponsor
Pfizer
Industry
Eligibility
13 Years and older
Enrollment
230 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2003
U.S. locations
34
States / cities
Los Angeles, California • Jacksonville, Florida • Naples, Florida + 29 more
Source: ClinicalTrials.gov public record
Updated Apr 25, 2011 · Synced Jul 23, 2026, 12:07 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Desensitization of Human Mast Cells: Mechanisms and Potential Utility for Preventing Anaphylaxis

NCT00868842
View directory record Official record
Conditions
Anaphylaxis
Interventions
Not listed
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 45 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 13, 2014 · Synced Jul 23, 2026, 12:07 AM EDT
Completed Not applicable Interventional

The Use of Penicillin Allergy Clinical Decision Rule to Enable Direct Oral Penicillin Challenge

NCT04454229
View directory record Official record
Conditions
Hypersensitivity, Immediate, Hypersensitivity, Delayed, Hypersensitivity Response
Interventions
Direct oral penicillin challenge, Standard of care
Other
Lead sponsor
Austin Health
Government
Eligibility
18 Years and older
Enrollment
382 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
2
States / cities
Durham, North Carolina • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 5, 2023 · Synced Jul 23, 2026, 12:07 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Azithromycin/Bicillin Syphilis

NCT00031499
View directory record Official record
Conditions
Syphilis
Interventions
Azithromycin, Benzathine Penicillin, Doxycycline
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 55 Years
Enrollment
593 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2009
U.S. locations
7
States / cities
Birmingham, Alabama • Indianapolis, Indiana • New Orleans, Louisiana + 3 more
Source: ClinicalTrials.gov public record
Updated Apr 28, 2013 · Synced Jul 23, 2026, 12:07 AM EDT