| Not Yet Recruiting | Effects of Adenoidectomy on Symptoms and IgE Levels in Children With AR NCT07527260 | Tongji Hospital | N/A |
| Recruiting | Ondansetron Lozenge Versus Intravenous for Prevention of Shivering in Tonsillectomy NCT07489742 | Tanta University | N/A |
| Not Yet Recruiting | Melatonin vs Midazolam in Children Undergoing Tonsillectomy NCT07336095 | Ain Shams University | Phase 3 |
| Not Yet Recruiting | Head-Only Draping in Pediatric Tonsillectomy NCT07347301 | NYU Langone Health | N/A |
| Not Yet Recruiting | Lateral Positioning for Extubation After Adenotonsillectomy NCT07108218 | Sichuan University | N/A |
| Not Yet Recruiting | Etomidate and Esketamine on Postoperative Pain After Tonsillectomy Undergoing Children NCT07062601 | Anqing Municipal Hospital | N/A |
| Not Yet Recruiting | Comparsion of Intravenous Injection of Magnesium Sulfate and Lidocaine Effectiveness on the Prevention of Lary NCT06761547 | Assiut University | Phase 3 |
| Not Yet Recruiting | Suprazygomatic Nerve Block in Tonsillectomy Patients NCT06359925 | Assiut University | N/A |
| Completed | THE EFFECT OF SANDPLAY THERAPY ON THE ANXİETY AND PAİN LEVELS OF CHİLDREN DURİNG PREOPERATİVE PERİOD NCT07433296 | Ondokuz Mayıs University | N/A |
| Completed | Muscle Relaxation for Pediatric Adenotonsillectomy NCT06225466 | University of Texas Southwestern Medical Center | Phase 4 |
| Withdrawn | Impact of a History of Tonsillectomy or Adenoidectomy on the Severity of COVID-19 : AMYVID Study NCT05935566 | University Hospital, Angers | — |
| Completed | PFDD Versus PFDRT in Chiari Decompression Surgery NCT06079125 | Xuanwu Hospital, Beijing | N/A |
| Completed | Preoperative VR Cartoon Viewing Reduces Postoperative Pain and Anxiety in Pediatric Tonsillectomy Patient NCT06763276 | Izmir Tinaztepe University | N/A |
| Completed | Effect of Intranasal Midazolam Versus Ketamine Midazolam Combination as a Premedication on the Occurrence of P NCT06122948 | Kasr El Aini Hospital | Phase 3 |
| Active Not Recruiting | Outpatient Management of Tonsillectomy in Adults NCT05915559 | Centre Hospitalier Universitaire, Amiens | N/A |
| Recruiting | Effectiveness of a mHealth Application as a Family Supportive Tool in Pediatric Otolaryngology Perioperative P NCT05460689 | IRCCS Burlo Garofolo | N/A |
| Unknown | The Evaluation of Eustachian Tube Function and Its Influencing Factors After Snoring Operation in Children NCT05600595 | Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University | — |
| Completed | Cold Steel Versus "Hot" BiZact Tonsillectomy; Comparing Post Tonsillectomy Morbidity NCT05270109 | Line Schiøtt Nissen | N/A |
| Completed | Tonsillectomy and Risk of Post-Tonsillectomy Hemorrhage NCT05161754 | Nordsjaellands Hospital | N/A |
| Withdrawn | Here's the Buzz: Evaluating Pediatric Post Op Pain and Nausea Following Tonsillectomy Surgery NCT04910919 | Vanderbilt University Medical Center | N/A |
| Unknown | The CMCPCTH Research in Chinese Children NCT05206799 | Shanghai Children's Hospital | — |
| Withdrawn | IV Acetaminophen and Post-Tonsillectomy Pain NCT03883893 | Children's Hospital Medical Center, Cincinnati | Phase 2 |
| Unknown | A Comparative Study to Measure the Effect of Nebulized Dexmedetomidine NCT05158348 | Kasr El Aini Hospital | Phase 3 |
| Withdrawn | Angiotensin-converting Enzyme 2 (ACE2) Expression in Tonsils and Adenoids NCT04640610 | Assistance Publique - Hôpitaux de Paris | — |
| Completed | BiZact Tonsillectomy in the Pediatric Population NCT04725305 | Baylor College of Medicine | N/A |
| Completed | The Effect of Cartoons Watched Before Surgery on Children's Fear Level NCT05099302 | Ayse Sonay Turkmen, Prof.Dr | N/A |
| Completed | CT Evaluating the Efficacy of Pre-incisional Local Analgesia With Ropivacaine + Dexamethasone in Pain Manageme NCT05504967 | Clinical Academic Center (2CA-Braga) | Phase 2 |
| Recruiting | Adenoidectomy: Correlation Between Individual Factors, Surgical Technique, and Residual Adenoids NCT07494370 | Fondazione IRCCS Policlinico San Matteo di Pavia | — |
| Unknown | Tonsillectomy Using BiZact Tonsilletomy Device NCT04320095 | University of Calgary | N/A |
| Unknown | Handheld-multimedia Versus Oral Midazolam in Pediatric on Perioperative Anxiety NCT04273035 | Universitair Ziekenhuis Brussel | Phase 4 |
| Terminated | Remifentanil Tapering and Post-adenotonsillectomy Pain in Children NCT03994146 | University Hospital, Akershus | Phase 4 |
| Completed | Default Dosing Settings for Opioid Prescriptions to Adolescents and Young Adults After Tonsillectomy NCT04066829 | University of Michigan | N/A |
| Recruiting | Betamethasone (Betapred®) as Premedication for Reducing Postoperative Vomiting and Pain After Tonsillectomy NCT03783182 | Umeå University | Phase 4 |
| Completed | Tonsillectomy Using BiZact™ - a Randomized Side-controlled Clinical Trial NCT03793816 | Medical University of Vienna | N/A |
| Completed | The Changes of ETT Cuff Pressures After Head and Neck Positions Placed for Adenotonsillectomy and Tonsillectom NCT05364281 | Istanbul University | — |
| Completed | Honey Used as Adjunct Therapy to Tylenol for Post-Op Tonsillectomy Patients NCT03931395 | Vanderbilt University Medical Center | N/A |
| Unknown | SNAKES Trial: Jelly Snakes to Prevent PONV in Kids After ENT Surgery NCT03879681 | Prof. Thomas Engelhardt | N/A |
| Completed | A Study of BiZact™ on Children and Adolescents Undergoing Tonsillectomy NCT03266094 | Medtronic - MITG | N/A |
| Recruiting | Gabapentin Premedication to Reduce Postoperative Pain for Pediatric Tonsillectomy NCT03625011 | Children's Healthcare of Atlanta | Phase 4 |
| Unknown | Role of Antibiotics Post Tonsillectomy NCT03491085 | Assiut University | Phase 1 / Phase 2 |
| Unknown | EXPAREL Post-tonsillectomy Clinical Trial NCT03420638 | Paul Hoff | Phase 4 |
| Unknown | Postoperative Oral Corticosteroids Following Tonsillectomy NCT03352115 | Wayne State University | N/A |
| Unknown | Dexamethasone-bupivacaine Versus Bupivacaine for Tonsillectomy Pain. NCT03443778 | Sisli Hamidiye Etfal Training and Research Hospital | Phase 4 |
| Completed | Efficacy of Opioid-free Anesthesia in Reducing Postoperative Respiratory Depression in Children Undergoing Ton NCT02987985 | University of Saskatchewan | Phase 3 |
| Completed | Modified Pre-operative Oral Doses Acetaminophen Versus Intravenous Acetaminophen NCT02994940 | University of California, Davis | Phase 4 |
| Unknown | Effects of Virtual Reality on Pre-Operative Anxiety and Induction of Anesthesia in Children and Adolescents NCT03239743 | Valley Anesthesiology Consultants | N/A |
| Completed | Physical Activity Tracking in Paediatric Elective Tonsillectomy NCT03174496 | University Children's Hospital Basel | — |
| Completed | A Study of BiZact™ on Adults Undergoing Tonsillectomy NCT02876575 | Medtronic - MITG | N/A |
| Unknown | Effect of CPAP and Adenotonsillectomy in Upper Airway Volume of Children With OSAS NCT03169491 | Instituto Nacional de Enfermedades Respiratorias | N/A |
| Completed | Celecoxib After Tonsillectomy NCT02934191 | Children's Hospital of Philadelphia | Phase 2 |
| Unknown | Comparison of Cold Dissection Technique and Needle Monopolar Electrocautery Tonsillectomy NCT02818647 | Gaziosmanpasa Research and Education Hospital | N/A |
| Unknown | Tonsillectomy and Primitive IgA Nephropathy in Children: Strasbourg Cohort and Assessment Practices in Inter N NCT02829164 | University Hospital, Strasbourg, France | — |
| Completed | Adenotonsillectomy Postoperative Parental Teaching Tool NCT02517658 | Sarah Khan | N/A |
| Completed | EXPAREL® for Pain After Tonsillectomy NCT02444533 | Mayo Clinic | Phase 4 |
| Unknown | HemORL: Monocentric, Prospective, Comparative Study on the Use of a Haemostatic Vacuum Device During Tonsillec NCT01904461 | University Hospital, Grenoble | N/A |
| Completed | The Effect of Dexamethasone Dosing on Post-tonsillectomy Hemorrhage NCT02228135 | Nicole Elsey | — |
| Completed | Study of the Expression of Heat Shock Proteins in Populations of B Lymphocytes in Human Tonsils NCT02859090 | Centre Hospitalier Universitaire Dijon | N/A |
| Completed | The Influence of Tantum Verde® on Recovery Following Tonsillectomy NCT02190162 | Western Galilee Hospital-Nahariya | N/A |
| Completed | Exploratory Study of "Natural Killer" Inflammatory Lymphocytes in Waste Per-operating of Tonsillectomy NCT03311919 | Centre Hospitalier Universitaire de Besancon | — |
| Completed | Bradycardia Following Intraoperative Administration of Dexmedetomidine NCT01917097 | Joseph D. Tobias | — |
| Completed | Postoperative Ibuprofen and the Risk of Bleeding After Tonsillectomy With or Without Adenoidectomy NCT01605903 | Massachusetts Eye and Ear Infirmary | Phase 2 |
| Completed | Dexmedetomidine as a Rapid Bolus in Children for Emergence Agitation NCT01528891 | Peter Davis | Phase 3 |
| Completed | Tramadol Versus Lidocaine Infiltration for Tonsillectomy NCT01552096 | Imam Abdulrahman Bin Faisal University | Phase 2 |
| Completed | Safety and Efficacy of Intravenous Ibuprofen for Treatment of Pain in Pediatric Patients Undergoing Tonsillect NCT01332253 | Cumberland Pharmaceuticals | Phase 3 |
| Completed | Impact of Using a Cuffed Endotracheal Tube on Limiting the Risk of Airway Fire NCT01285804 | Nationwide Children's Hospital | N/A |
| Completed | Acupuncture for Post-tonsillectomy Pain Control in Children NCT01285687 | Ziv Hospital | N/A |
| Unknown | Change of Nasalance After Tonsillectomy in Thai Adult NCT01275079 | Chulalongkorn University | — |
| Unknown | The Effect of Peritonsillar Infiltration of Ketamine and Dexamethasone for Postoperative Pain Relief in Childr NCT01198210 | Qazvin University Of Medical Sciences | Phase 1 / Phase 2 |
| Completed | Tranexamic Acid and Pediatric Adenotonsillectomy NCT01228136 | Irmandade Santa Casa de Misericórdia de Porto Alegre | Phase 4 |
| Completed | Celecoxib for Pediatric Adenotonsillectomy NCT00849966 | Children's Hospital of Eastern Ontario | Phase 2 |
| Unknown | Tonsil Surgery in Sweden: A National Quality Register NCT02829515 | Joacim Stalfors | — |
| Completed | Pharmacogenomics Analysis of Morphine Pharmacokinetics in Pediatric Tonsillectomy and Adenoidectomy NCT00836264 | Children's Hospital of Philadelphia | — |
| Unknown | Etoricoxib in Ear Nose Throat Surgery NCT00756873 | University of Regensburg | Phase 3 |
| Completed | Closure Method Study Following Tonsillectomy in Children NCT00730340 | University of Oklahoma | EARLY_Phase 1 |
| Completed | Use of Laryngeal Mask Airway in Pediatric Adenotonsillectomy NCT01141660 | Virginia Commonwealth University | N/A |
| Completed | Effect of Duration of Antibiotic Therapy on Recovery Following Tonsillectomy NCT00662987 | Weill Medical College of Cornell University | N/A |
| Completed | The Effect of Caffeine on Postextubation Adverse Respiratory Events in Children With Obstructive Sleep Apnea ( NCT00273754 | The University of Texas Health Science Center, Houston | Phase 2 |
| Completed | Psychological Influences on Postoperative Recovery NCT00581139 | University of California, Irvine | Phase 2 |
| Completed | Home Care Management of Pediatric Pain NCT00251628 | University of California, San Francisco | Phase 4 |
| Unknown | Evaluation of The Effect of Bupivacaine (Marcaine) in Reducing Early Post Tonsillectomy Pain NCT01582022 | King Saud University | Phase 4 |