Skip to content

Opioid-Free Anesthetic for Tonsillectomy

Opioid-Free Versus Transitional Anesthetic With Opioids From Tonsillectomy

Status
Terminated
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04528173
Enrollment
35
Registered
2020-08-27
Start date
2020-07-22
Completion date
2023-08-22
Last updated
2024-12-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anesthesia, Opioid Use, Sleep Disorder, Surgery, Tonsillitis

Keywords

Tonsillectomy, Opioid-Free, Ketorolac, Dexmedetomidine, Acute postoperative pain relief, Opioid, Morphine, Fentanyl

Brief summary

Prospective randomized controlled trial to determine if opioid-free anesthetic for tonsillectomy is non-inferior to standard opioid-containing anesthetic

Detailed description

Objectives: Primary: To determine if an opioid-free anesthetic provides equivalent acute postoperative pain relief in tonsillectomy. Secondary: To determine if post-operative pain at home is not significantly different with an opioid-free regimen compared to an opioid containing regimen for tonsillectomy. Study Design: Prospective, randomized, multi-center trial study Study Interventions and Measures: Subject will be randomized to 1:1 intra-operative opioid-free (OFG) vs traditional care anesthetic with opioids (TCG) group The primary endpoint is the median pain score (calculated by a blinded validated observer in the recovery room at two time intervals) between the two cohorts.

Interventions

DRUGKetorolac

Ketorolac (0.5mg/kg; maximum 15mg intravenously) will be given at end of procedure after evaluation for hemostasis.

DRUGDexmedetomidine

Dexmedetomidine (1ug/kg with maximum 50ug intravenously) will be given at beginning of procedure.

DRUGMorphine

Morphine (0.05-0.1 mg/kg intravenously) will be given intra-operatively per institutional standard clinical care.

DRUGFentanyl

Fentanyl (0.5-2 ug/kg intravenously) will be given intra-operatively per institutional standard clinical care.

Sponsors

University of Pennsylvania
CollaboratorOTHER
University of Tennessee
CollaboratorOTHER
Children's Hospital of Philadelphia
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Masking description

The unblinded members are the treating anesthesiologist for the case, staff who randomize, and collect and enter intra-op medications into electronic data capture (EDC). Blinded members include the subject/family members, the surgeon, staff who perform post-op assessment, physician investigator who perform any adverse event/serious adverse event (AE/SAE) assessments, statistician and data safety monitoring board (DSMB).

Intervention model description

Subject will be randomized to 1:1 intra-operative opioid-free (OFG) vs traditional care anesthetic with opioids (TCG) group.

Eligibility

Sex/Gender
ALL
Age
2 Years to 18 Years
Healthy volunteers
Yes

Inclusion criteria

1. Males or females age 2 to 18 years. 2. American Society of Anesthesiologists {ASA) ≤ 3 physical classification system 3. Girls after menarche must have a negative pregnancy test. 4. Scheduled tonsillectomy or tonsillectomy combined with adenoidectomy and/or ear tube placement at the Children's Hospital of Philadelphia (CHOP) main or ambulatory surgical centers. 5. Parental/guardian permission (informed consent) and if appropriate, child assent

Exclusion criteria

1. Current (Within the last 30 days) opioid use for pain control 2. High risk for surgical site hemorrhage, determined by bleeding disorder diagnosis or evidence or poor hemostasis 3. Multiple scheduled surgeries at the same time other than adenoidectomy and/or ear tube placement 4. History of drug abuse, chronic pain, bleeding disorder 5. Chronic disease such as sickle cell disease for which treatment with opioids may be clinically indicated 6. Significant congenital disorders, medication allergies or comorbidities, specifically a pre-disposition to bradycardia or conduction abnormalities, cyanotic cardiac disease and use of medications that would increase risk of bleeding or bradycardia. 7. History of hepatic dysfunction, renal dysfunction, thrombocytopenia, or anemia (including pre-surgery laboratory abnormalities) 8. History of hypersensitivity to NSAIDs 9. Patients with asthma, including patients who have experienced aspirin- or NSAID-sensitive asthma or a history of exacerbation when aspirin or NSAIDs are administered (e.g. bronchospasm, urticaria, etc.) 10. Subjects receiving medications that could impact metabolism of either study drug should also be excluded 11. Trisomy 21 diagnosis 12. Parents/guardians or subjects who, in the opinion of the Investigator, may be non-compliant with study schedules or procedures. 13. Patients on a Ketogenic diet 14. Parents or subjects who do not speak English

Design outcomes

Primary

MeasureTime frameDescription
Mean FLACC (Face, Legs, Activity, Cry, Consolability) Pain Scoreup to 1 hourMean FLACC pain assessment scores are calculated 15 and 30 minutes after awakening, Scores are calculated by a blinded study team observer. Minimum Score: 0 and Maximum Score: 10. Higher scores indicate worse outcomes. One Nursing Maximum FLACC pain score is obtained by an unblinded patient Registered Nurse (RN) during the patient's Post-Anesthesia Care Unit (PACU) stay within one hour of awakening. The pain score is collected from the nursing documentation in the electronic medical record. FLACC Minimum Score: 0 and Maximum Score: 10 Higher scores indicate worse outcomes.

Secondary

MeasureTime frameDescription
Number of Participants Who Sought Unplanned Medical Attentionup to post-op day 30Number of participants who were readmitted to the hospital and sought unplanned medical attention (phone calls, office visits, emergency department visits) by chart review and questionnaires for readmission and medical reattendance, including calls to physician
Number of Participants Who Were Readmitted to the the HospitalUp to post-op day 30Number of participants who were readmitted to the hospital by chart review and questionnaires for readmission and medical reattendance, including calls to physician.
Number of Participants With Non-artefactual Percentage of Oxygen Saturation (SpO2)<90% (>30 Seconds)up to post-op day 30Number of participants with non-artefactual percentage of oxygen saturation (SpO2) less than 90% for greater than 30 seconds). Collected in the recovery room and chart review
Number of Participants With Nausea, Vomiting, Pruritisup to post-op day 30Collected in recovery room and asked in questionnaires, collected from parents on post-operative days 1, 5, and 30.
Family Satisfaction With Patient Recovery Based on Five-point Likert Scoreassessed at post-op days 1, 5, and 30Follow-up questionnaire to family on post-op days 1, 5, and 30. Parents will be asked to rank how satisfied they are with their child's recovery by using these two prompts: I am satisfied with my child's recovery, and I am satisfied with my child's pain control at home. They will choose from the following options: Strongly agree = 1, Agree = 2, Undecided = 3, Disagree = 4, Strongly Disagree =5. Minimum score is 1, Max is 5. Higher scores indicate worse outcomes. Data assessed at post-op days 1, 5, and 30 were averaged.
Number of Participants That Experienced Any Post-operative Bleeding Throughout the Studyup to post-op day 30Follow-up questionnaires administered on post-operative day 1, 5, ad 30 and chart review. Question: Has your child had any bright red blood in their mouth? Answer options: Yes/No
Number of Patients Receiving Rescue Opioidsup to post-op day 30How many subjects received rescue opioids after surgery

Countries

United States

Participant flow

Participants by arm

ArmCount
Traditional Care Group (TCG)
Traditional anesthetic with opioids group will receive institutional standard clinical care for tonsillectomy, including a standardized opioid dose at the beginning of the case and again at the end if needed. Dexmedetomidine and Ketorolac will not be used intra-operatively in this cohort to prevent confounding. Morphine: Morphine (0.05-0.1 mg/kg intravenously) will be given intra-operatively per institutional standard clinical care. Fentanyl: Fentanyl (0.5-2 ug/kg intravenously) will be given intra-operatively per institutional standard clinical care.
18
Opioid-Free Group (OFG)
Opioid-Free group will receive institutional standard clinical care for tonsillectomy, without opioids, but including Dexmedetomidine and Ketorolac. Ketorolac: Ketorolac (0.5mg/kg; maximum 15mg intravenously) will be given at end of procedure after evaluation for hemostasis. Dexmedetomidine: Dexmedetomidine (1ug/kg with maximum 50ug intravenously) will be given at beginning of procedure.
17
Total35

Baseline characteristics

CharacteristicOpioid-Free Group (OFG)TotalTraditional Care Group (TCG)
Age, Customized6.47 years4.97 years3.56 years
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
7 Participants10 Participants3 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
10 Participants25 Participants15 Participants
Sex: Female, Male
Female
12 Participants22 Participants10 Participants
Sex: Female, Male
Male
5 Participants13 Participants8 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 180 / 17
other
Total, other adverse events
4 / 186 / 17
serious
Total, serious adverse events
2 / 180 / 17

Outcome results

Primary

Mean FLACC (Face, Legs, Activity, Cry, Consolability) Pain Score

Mean FLACC pain assessment scores are calculated 15 and 30 minutes after awakening, Scores are calculated by a blinded study team observer. Minimum Score: 0 and Maximum Score: 10. Higher scores indicate worse outcomes. One Nursing Maximum FLACC pain score is obtained by an unblinded patient Registered Nurse (RN) during the patient's Post-Anesthesia Care Unit (PACU) stay within one hour of awakening. The pain score is collected from the nursing documentation in the electronic medical record. FLACC Minimum Score: 0 and Maximum Score: 10 Higher scores indicate worse outcomes.

Time frame: up to 1 hour

Population: Nurse maximum pain score not documented for 2 subjects

ArmMeasureGroupValue (MEAN)Dispersion
Traditional Care Group (TCG)Mean FLACC (Face, Legs, Activity, Cry, Consolability) Pain Score15 minutes3.56 score on a scaleStandard Deviation 3.45
Traditional Care Group (TCG)Mean FLACC (Face, Legs, Activity, Cry, Consolability) Pain Score30 minutes2.28 score on a scaleStandard Deviation 2.7
Traditional Care Group (TCG)Mean FLACC (Face, Legs, Activity, Cry, Consolability) Pain ScoreNurse Max Score up to 1 hour5.29 score on a scaleStandard Deviation 4.3
Opioid-Free Group (OFG)Mean FLACC (Face, Legs, Activity, Cry, Consolability) Pain Score15 minutes2.47 score on a scaleStandard Deviation 3.04
Opioid-Free Group (OFG)Mean FLACC (Face, Legs, Activity, Cry, Consolability) Pain Score30 minutes1.88 score on a scaleStandard Deviation 2.67
Opioid-Free Group (OFG)Mean FLACC (Face, Legs, Activity, Cry, Consolability) Pain ScoreNurse Max Score up to 1 hour5.69 score on a scaleStandard Deviation 4.27
Secondary

Family Satisfaction With Patient Recovery Based on Five-point Likert Score

Follow-up questionnaire to family on post-op days 1, 5, and 30. Parents will be asked to rank how satisfied they are with their child's recovery by using these two prompts: I am satisfied with my child's recovery, and I am satisfied with my child's pain control at home. They will choose from the following options: Strongly agree = 1, Agree = 2, Undecided = 3, Disagree = 4, Strongly Disagree =5. Minimum score is 1, Max is 5. Higher scores indicate worse outcomes. Data assessed at post-op days 1, 5, and 30 were averaged.

Time frame: assessed at post-op days 1, 5, and 30

ArmMeasureGroupValue (MEAN)
Traditional Care Group (TCG)Family Satisfaction With Patient Recovery Based on Five-point Likert ScoreRecovery Satisfaction1.4 score on a scale
Traditional Care Group (TCG)Family Satisfaction With Patient Recovery Based on Five-point Likert ScorePain Control Satisfaction1.6 score on a scale
Opioid-Free Group (OFG)Family Satisfaction With Patient Recovery Based on Five-point Likert ScoreRecovery Satisfaction1.3 score on a scale
Opioid-Free Group (OFG)Family Satisfaction With Patient Recovery Based on Five-point Likert ScorePain Control Satisfaction1.5 score on a scale
Secondary

Number of Participants That Experienced Any Post-operative Bleeding Throughout the Study

Follow-up questionnaires administered on post-operative day 1, 5, ad 30 and chart review. Question: Has your child had any bright red blood in their mouth? Answer options: Yes/No

Time frame: up to post-op day 30

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Traditional Care Group (TCG)Number of Participants That Experienced Any Post-operative Bleeding Throughout the Study0 Participants
Opioid-Free Group (OFG)Number of Participants That Experienced Any Post-operative Bleeding Throughout the Study0 Participants
Secondary

Number of Participants Who Sought Unplanned Medical Attention

Number of participants who were readmitted to the hospital and sought unplanned medical attention (phone calls, office visits, emergency department visits) by chart review and questionnaires for readmission and medical reattendance, including calls to physician

Time frame: up to post-op day 30

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Traditional Care Group (TCG)Number of Participants Who Sought Unplanned Medical Attention1 Participants
Opioid-Free Group (OFG)Number of Participants Who Sought Unplanned Medical Attention3 Participants
Secondary

Number of Participants Who Were Readmitted to the the Hospital

Number of participants who were readmitted to the hospital by chart review and questionnaires for readmission and medical reattendance, including calls to physician.

Time frame: Up to post-op day 30

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Traditional Care Group (TCG)Number of Participants Who Were Readmitted to the the Hospital1 Participants
Opioid-Free Group (OFG)Number of Participants Who Were Readmitted to the the Hospital0 Participants
Secondary

Number of Participants With Nausea, Vomiting, Pruritis

Collected in recovery room and asked in questionnaires, collected from parents on post-operative days 1, 5, and 30.

Time frame: up to post-op day 30

ArmMeasureGroupValue (NUMBER)
Traditional Care Group (TCG)Number of Participants With Nausea, Vomiting, PruritisNausea2 participants
Traditional Care Group (TCG)Number of Participants With Nausea, Vomiting, PruritisVomiting2 participants
Traditional Care Group (TCG)Number of Participants With Nausea, Vomiting, Pruritispruritis0 participants
Opioid-Free Group (OFG)Number of Participants With Nausea, Vomiting, PruritisVomiting0 participants
Opioid-Free Group (OFG)Number of Participants With Nausea, Vomiting, PruritisNausea1 participants
Opioid-Free Group (OFG)Number of Participants With Nausea, Vomiting, Pruritispruritis0 participants
Secondary

Number of Participants With Non-artefactual Percentage of Oxygen Saturation (SpO2)<90% (>30 Seconds)

Number of participants with non-artefactual percentage of oxygen saturation (SpO2) less than 90% for greater than 30 seconds). Collected in the recovery room and chart review

Time frame: up to post-op day 30

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Traditional Care Group (TCG)Number of Participants With Non-artefactual Percentage of Oxygen Saturation (SpO2)<90% (>30 Seconds)1 Participants
Opioid-Free Group (OFG)Number of Participants With Non-artefactual Percentage of Oxygen Saturation (SpO2)<90% (>30 Seconds)1 Participants
Secondary

Number of Patients Receiving Rescue Opioids

How many subjects received rescue opioids after surgery

Time frame: up to post-op day 30

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Traditional Care Group (TCG)Number of Patients Receiving Rescue Opioids9 Participants
Opioid-Free Group (OFG)Number of Patients Receiving Rescue Opioids11 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026