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Showing 1–24 of 111 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Tonsillectomy Clear all
Enrolling by invitation No phase listed Observational

Evaluating the Efficacy of Intravenous Acetaminophen (IV Tylenol) in Reducing Pain and Agitation in Pediatric Patients Undergoing Elective Tonsillectomy and/or Adenoidectomy

NCT07576985
View directory record Official record
Conditions
Tonsillectomy, Adenoidectomy
Interventions
No Intervention: Observational Cohort
Other
Lead sponsor
MetroHealth Medical Center
Other
Eligibility
Up to 8 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Jul 23, 2026, 1:23 AM EDT
Completed Phase 4 Interventional Results available

Pharmacokinetic Evaluation of EXPAREL in Adults Undergoing Tonsillectomy

NCT02199574
View directory record Official record
Conditions
Pain
Interventions
EXPAREL
Drug
Lead sponsor
Pacira Pharmaceuticals, Inc
Industry
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
2
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 7, 2021 · Synced Jul 23, 2026, 1:23 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Magnesium vs Placebo for Tonsillectomy

NCT02218424
View directory record Official record
Conditions
Pain
Interventions
Magnesium, Normal saline
Drug
Lead sponsor
Ann & Robert H Lurie Children's Hospital of Chicago
Other
Eligibility
4 Years to 10 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 2, 2019 · Synced Jul 23, 2026, 1:23 AM EDT
Completed Phase 3 Interventional Results available

Management of Post-Tonsillectomy Pain in Pediatric Patients

NCT04551196
View directory record Official record
Conditions
Pain, Postoperative, Tonsillar Hypertrophy, Tonsillitis
Interventions
Alternating Acetaminophen and Ibuprofen, Combined Acetaminophen and Ibuprofen
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
4 Years to 17 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 10, 2024 · Synced Jul 23, 2026, 1:23 AM EDT
Terminated Phase 4 Interventional

Postoperative Tramadol/Gabapentin/Ibuprofen Versus Tramadol/Placebo/Ibuprofen

NCT02076893
View directory record Official record
Conditions
Pain
Interventions
gabapentin, Tramadol, Ibuprofen, Placebo
Drug
Lead sponsor
Children's Hospitals and Clinics of Minnesota
Other
Eligibility
4 Years to 15 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 8, 2017 · Synced Jul 23, 2026, 1:23 AM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers

Effect of Gabapentin on Postoperative Opioid Analgesic Use and Pain in Adolescents Undergoing Tonsillectomy

NCT05024825
View directory record Official record
Conditions
Pain, Postoperative
Interventions
Gabapentin, hydrocodone, acetaminophen and ibuprofen
Drug
Lead sponsor
Albany Medical College
Other
Eligibility
12 Years to 18 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Albany, New York
Source: ClinicalTrials.gov public record
Updated Aug 26, 2021 · Synced Jul 23, 2026, 1:23 AM EDT
Terminated Phase 1Phase 2 Interventional Results available

Non-Opioid Pain Medications After Intracapsular Adenotonsillectomy

NCT04791761
View directory record Official record
Conditions
Adenotonsillectomy, Post-operative Analgesia, Opioid Use
Interventions
Oxycodone, Ibuprofen, Acetaminophen, Opioid disposal pouch, Opioid disposal education
Drug · Other
Lead sponsor
David Chi, MD
Other
Eligibility
3 Years to 17 Years
Enrollment
73 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 29, 2024 · Synced Jul 23, 2026, 1:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Duration of Antibiotic Therapy on Recovery Following Tonsillectomy

NCT00662987
View directory record Official record
Conditions
Tonsillectomy
Interventions
7 days of amoxicillin, 3 days of amoxcillin followed by 4 days of placebo
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
Up to 18 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 20, 2008 · Synced Jul 23, 2026, 1:23 AM EDT
Completed Phase 4 Interventional Results available

Modified Pre-operative Oral Doses Acetaminophen Versus Intravenous Acetaminophen

NCT02994940
View directory record Official record
Conditions
Tonsillectomy, Adenoidectomy
Interventions
Acetaminophen
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
3 Years to 17 Years
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Feb 17, 2021 · Synced Jul 23, 2026, 1:23 AM EDT
Terminated Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Non-opioids for Analgesia After Adenotonsillectomy in Children

NCT03618823
View directory record Official record
Conditions
Adenotonsillectomy, Post-operative Analgesia, Opioid Use
Interventions
Oxycodone, Ibuprofen, Acetaminophen
Drug
Lead sponsor
David Chi, MD
Other
Eligibility
3 Years to 17 Years
Enrollment
268 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 9, 2021 · Synced Jul 23, 2026, 1:23 AM EDT
Completed No phase listed Observational Results available

Comparison of Sleep Study Results After Partial Intracapsular Tonsillectomy Versus Total Tonsillectomy

NCT00887471
View directory record Official record
Conditions
Sleep-disordered Breathing, Obstructive Sleep Apnea
Interventions
PITA or T&A
Procedure
Lead sponsor
State University of New York - Downstate Medical Center
Other
Eligibility
6 Months to 14 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
Brooklyn, New York
Source: ClinicalTrials.gov public record
Updated Feb 9, 2014 · Synced Jul 23, 2026, 1:23 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Optimization of Pediatric Tonsillectomy to IMprove AnaLgesia

NCT06576830
View directory record Official record
Conditions
Pain, Postoperative, Tonsillar Hypertrophy, Tonsillitis, Pediatric Sleep Apnea, Sleep-Disordered Breathing
Interventions
Methadone, Fentanyl/Hydromorphone
Drug
Lead sponsor
Duke University
Other
Eligibility
3 Years to 17 Years
Enrollment
440 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2029
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 4, 2025 · Synced Jul 23, 2026, 1:23 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Inferior Turbinate Reduction in Pediatric Population Failing Surgery for Sleep Disordered Breathing

NCT00936494
View directory record Official record
Conditions
Sleep Related Breathing Disorder, Upper Airway Resistance Syndrome, Obstructive Sleep Apnea
Interventions
Cold ablation inferior turbinate reduction
Procedure
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
Up to 18 Years
Enrollment
2 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Oct 5, 2016 · Synced Jul 23, 2026, 1:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Tonsillar Pillar Closure on Postoperative Pain and Bleeding Risk After Tonsillectomy

NCT00394849
View directory record Official record
Conditions
Hemorrhage, Pain
Interventions
suture one tonsillar fossa
Procedure
Lead sponsor
Indiana University
Other
Eligibility
Not listed
Enrollment
763 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2004
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Nov 6, 2017 · Synced Jul 23, 2026, 1:23 AM EDT
Not listed Phase 4 Interventional

Randomized Controlled Study of Plasmaknife Tonsillectomy Versus Monopolar Tonsillectomy

NCT00466544
View directory record Official record
Conditions
Obstructive Tonsillar Hypertrophy, Tonsillitis
Interventions
Plasmaknife, Monopolar
Device
Lead sponsor
Children's Hospital of Michigan
Other
Eligibility
4 Years to 16 Years
Enrollment
100 participants
Timeline
Started 2007
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 26, 2007 · Synced Jul 23, 2026, 1:23 AM EDT
Recruiting Not applicable Interventional

Lateral Pharyngoplasty Outcomes in Children Undergoing Tonsillectomy

NCT05575401
View directory record Official record
Conditions
Sleep-Disordered Breathing, Sleep Apnea Syndromes in Children, Sleep Apnea, Obstructive, Tonsillitis, Tonsillar Hypertrophy, Tonsil Stone, Tonsil Disease
Interventions
Lateral pharyngoplasty, Tonsillectomy
Procedure
Lead sponsor
Loma Linda University
Other
Eligibility
3 Years to 17 Years
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
4
States / cities
Murrieta, California • Riverside, California • San Bernardino, California
Source: ClinicalTrials.gov public record
Updated Feb 22, 2026 · Synced Jul 23, 2026, 1:23 AM EDT
Terminated Phase 3 Interventional Results available

Post-operative Course of Dexamethasone to Reduce Tonsillectomy Morbidity

NCT04879823
View directory record Official record
Conditions
Adenotonsillectomy, Analgesia, Surgery
Interventions
Dexamethasone, Ibuprofen, Acetaminophen, Placebo
Drug
Lead sponsor
David Chi, MD
Other
Eligibility
3 Years to 17 Years
Enrollment
222 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania • Sewickley, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 4, 2024 · Synced Jul 23, 2026, 1:23 AM EDT
Completed Phase 4 Interventional

Dexamethasone and Post-tonsillectomy Pain in Children

NCT02793011
View directory record Official record
Conditions
Pediatric Post-tonsillectomy Pain
Interventions
Dexamethasone, Placebo
Drug
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
4 Years to 17 Years
Enrollment
137 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 9, 2020 · Synced Jul 23, 2026, 1:23 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Caffeine in Children With Obstructive Sleep Apnea, Dose Response Study

NCT01349205
View directory record Official record
Conditions
Obstructive Sleep Apnea, Enlargement of Tonsil or Adenoid
Interventions
Caffeine and sodium Benzoate 10 mg/kg IV, Caffeine and Sodium Benzoate 20 mg/kg IV, 0.9 NS Saline
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
2 Years to 12 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 12, 2016 · Synced Jul 23, 2026, 1:23 AM EDT
Completed Phase 4 Interventional

The Effects of IV vs Oral Dexamethasone on Postoperative Nausea, Vomiting, and Pain

NCT04563494
View directory record Official record
Conditions
Nausea and Vomiting, Postoperative
Interventions
dexamethasone
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
3 Years to 7 Years
Enrollment
127 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 21, 2024 · Synced Jul 23, 2026, 1:23 AM EDT
Completed Not applicable Interventional Results available

Evaluating Perioperative Dexamethasone and the Risk of Bleeding in Tonsillectomy

NCT01415583
View directory record Official record
Conditions
Post-operative Hemorrhage
Interventions
Dexamethasone
Drug
Lead sponsor
Massachusetts Eye and Ear Infirmary
Other
Eligibility
3 Years to 18 Years
Enrollment
314 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 11, 2017 · Synced Jul 23, 2026, 1:23 AM EDT
Recruiting Not applicable Interventional

Decreasing Emergence Agitation With Personalized Music

NCT05044832
View directory record Official record
Conditions
Surgical Procedure, Unspecified
Interventions
Personalized Music
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
3 Years to 9 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
2
States / cities
Stanford, California • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Nov 21, 2024 · Synced Jul 23, 2026, 1:23 AM EDT
Completed Phase 2 Interventional Results available

The Effect of Caffeine on Postextubation Adverse Respiratory Events in Children With Obstructive Sleep Apnea (OSA).

NCT00273754
View directory record Official record
Conditions
Sleep Apnea, Obstructive, Tonsillectomy, Adenoidectomy, Postoperative Complications
Interventions
Caffeine, Placebo
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
30 Months to 18 Years
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 15, 2016 · Synced Jul 23, 2026, 1:23 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

A Mobile Application for Child-focused Perioperative Education

NCT06054282
View directory record Official record
Conditions
Preoperative Anxiety
Interventions
"Ready for Tonsillectomy" educational mobile application
Behavioral
Lead sponsor
Children's Healthcare of Atlanta
Other
Eligibility
5 Years to 13 Years
Enrollment
360 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Feb 21, 2024 · Synced Jul 23, 2026, 1:23 AM EDT