Adults 12 to 25, any sex, with Tonsillectomy. Patients with the condition only — healthy volunteers not accepted.
Results — posted to ClinicalTrials.gov
Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.
Number of Doses in the Initial Discharge Opioid PrescriptionPrimary· Day of discharge, approximately 1 day
Doses are defined as the maximum number of instances a patient could take opioids if they took them as prescribed. Number of doses are calculated from the electronic health record.
Group
Value
95% CI
Pediatric Otolaryngology Service (Pre-Intervention)
22.3
± 7.4
Pediatric Otolaryngology Service (Post-Intervention)
16.1
± 6.5
General Otolaryngology Service (Control, Pre-Intervention)
33.7
± 20.4
General Otolaryngology Service (Control, Post-Intervention)
30.4
± 12.4
Proportion of Patients for Whom the Number of Doses in the Discharge Opioid Prescription Equals the Number of Doses in the New Default SettingsPrimary· Day of discharge, approximately 1 day
The new default settings called for 12 doses in the discharge prescription.
This measure assesses the proportion of participants with 12 doses in the discharge prescription, regardless of which arm they were in.
Doses are defined as the maximum number of instances a patient could take opioids if they took them as prescribed. Number of doses are calculated from the electronic health record.
Group
Value
95% CI
Pediatric Otolaryngology Service (Pre-Intervention)
1
Pediatric Otolaryngology Service (Post-Intervention)
27
General Otolaryngology Service (Control, Pre-Intervention)
2
General Otolaryngology Service (Control, Post-Intervention)
0
Proportion of Participants Who Had at Least One Opioid Prescription Refill From University of Michigan During the Two Weeks After SurgeryPrimary· Day 14
Doses are defined as the maximum number of instances a patient could take opioids if they took them as prescribed. Number of doses are calculated from the electronic health record.
Group
Value
95% CI
Pediatric Otolaryngology Service (Pre-Intervention)
10
Pediatric Otolaryngology Service (Post-Intervention)
12
General Otolaryngology Service (Control, Pre-Intervention)
25
General Otolaryngology Service (Control, Post-Intervention)
26
Proportion of Patients Who Visited or Saw a University of Michigan Provider Due to Pain During the Two Weeks After SurgeryPrimary· Day 14
Detailed in electronic health record. Excludes emergency department visits and hospitalizations for pain.
Group
Value
95% CI
Pediatric Otolaryngology Service (Pre-Intervention)
2
Pediatric Otolaryngology Service (Post-Intervention)
1
General Otolaryngology Service (Control, Pre-Intervention)
0
General Otolaryngology Service (Control, Post-Intervention)
1
Proportion of Patients With at Least One Emergency Department and/or Hospitalization at University of Michigan for Pain During the Two Weeks After SurgeryPrimary· Day 14
Detailed in electronic health record
Group
Value
95% CI
Pediatric Otolaryngology Service (Pre-Intervention)
3
Pediatric Otolaryngology Service (Post-Intervention)
2
General Otolaryngology Service (Control, Pre-Intervention)
2
General Otolaryngology Service (Control, Post-Intervention)
3
Overall Satisfaction Score on Pain Control During the Two Weeks After Surgery as Measured by the Post-operative Survey.Secondary· Day 14
Participants were surveyed on Day 14 and asked to report level of satisfaction with pain control since their surgery.
Pain control satisfaction is on a scale of 1-10 with higher scores indicating higher satisfaction
Group
Value
95% CI
Pediatric Otolaryngology Service (Pre-Intervention)
7.4
± 2.4
Pediatric Otolaryngology Service (Post-Intervention)
7.4
± 2.4
General Otolaryngology Service (Control, Pre-Intervention)
6.5
± 2.5
General Otolaryngology Service (Control, Post-Intervention)
6.7
± 7.0
Proportion of Patients Who Reported That Their Pain Was Well-controlled as Measured by the Post-operative Survey.Secondary· Day 14
Group
Value
95% CI
Pediatric Otolaryngology Service (Pre-Intervention)
32
Pediatric Otolaryngology Service (Post-Intervention)
25
General Otolaryngology Service (Control, Pre-Intervention)
11
General Otolaryngology Service (Control, Post-Intervention)
18
Proportion of Patients Whose Overall Pain Control Was Rated as Much Worse or Worse Than Expected as Measured by the Post-operative Survey.Secondary· Day 14
Survey was comprised of 5 options:
* Much worse than you expected
* Worse than you expected
* About what you expected
* Better than you expected
* Much better than you expected
Group
Value
95% CI
Pediatric Otolaryngology Service (Pre-Intervention)
15
Pediatric Otolaryngology Service (Post-Intervention)
11
General Otolaryngology Service (Control, Pre-Intervention)
11
General Otolaryngology Service (Control, Post-Intervention)
18
Proportion of Patients Whose Pain Has Resolved by Day 14 After Surgery as Measured by the Post-operative Survey.Secondary· Day 14
Survey asked participant on what day pain had resolved. If participants indicated pain had resolved by Day 14, then they were coded as 1, and 0 otherwise.
Group
Value
95% CI
Pediatric Otolaryngology Service (Pre-Intervention)
32
Pediatric Otolaryngology Service (Post-Intervention)
34
General Otolaryngology Service (Control, Pre-Intervention)
17
General Otolaryngology Service (Control, Post-Intervention)
24
Pain in the Throat and/or Mouth Over the Past 7 Days at Its Worst as Measured by the Post-operative Survey.Secondary· Day 14
Pain control is on a scale of 0-10 with higher scores indicating more pain.
Group
Value
95% CI
Pediatric Otolaryngology Service (Pre-Intervention)
5.3
± 2.8
Pediatric Otolaryngology Service (Post-Intervention)
5.4
± 3.2
General Otolaryngology Service (Control, Pre-Intervention)
7.1
± 2.0
General Otolaryngology Service (Control, Post-Intervention)
6.4
± 3.1
Pain in the Throat and/or Mouth Over the Past 7 Days on Average as Measured by the Post-operative Survey.Secondary· Day 14
Pain control is on a scale of 0-10 with higher scores indicating worse pain.
Group
Value
95% CI
Pediatric Otolaryngology Service (Pre-Intervention)
3.3
± 2.1
Pediatric Otolaryngology Service (Post-Intervention)
3.3
± 3.0
General Otolaryngology Service (Control, Pre-Intervention)
4.4
± 2.0
General Otolaryngology Service (Control, Post-Intervention)
3.9
± 2.2
Proportion of Patients With Leftover Doses of Opioids as Measured by the Post-operative Survey.Secondary· Day 14
Participants who answered 'No' to the following question: Did you take all of the opioid pain medications that were prescribed to you during the two weeks after surgery?
Group
Value
95% CI
Pediatric Otolaryngology Service (Pre-Intervention)
35
Pediatric Otolaryngology Service (Post-Intervention)
28
General Otolaryngology Service (Control, Pre-Intervention)
21
General Otolaryngology Service (Control, Post-Intervention)
24
Sponsor's own description
This study will evaluate whether lowering the default number of doses for opioid prescriptions written in an electronic health record system can decrease opioid prescribing without causing unintended consequences such as worsened pain control.
Publications & conference data
1 peer-reviewed publication reference this trial (live from Europe PMC):
NCT07489742 — Ondansetron Lozenge Versus Intravenous for Prevention of Shivering in Tonsillectomy
· NA
· recruiting
NCT07494370 — Adenoidectomy: Correlation Between Individual Factors, Surgical Technique, and Residual Adenoids
· recruiting
NCT03783182 — Betamethasone (Betapred®) as Premedication for Reducing Postoperative Vomiting and Pain After Tonsillectomy
· Phase 4
· recruiting
NCT03625011 — Gabapentin Premedication to Reduce Postoperative Pain for Pediatric Tonsillectomy
· Phase 4
· recruiting
Other University of Michigan trials
Trials by the same sponsor.
NCT07536919 — Integrating Care for Hypertension-Diabetes MULTImorbidity in Guatemala Through HEARTS Implementation
· NA
· not yet recruiting
NCT05509842 — Function-based Accelerated Stimulation Therapy (FAST-therapy) for Freezing of Gait (FOG) After Parkinson's Disease (PD)
· NA
· not yet recruiting
NCT06311188 — Exploring PTSD Symptoms, Barriers and Facilitators to Mindfulness
· NA
· not yet recruiting
NCT07471646 — Effects of Ramadan Fasting With Exercise on Cardiometabolic Health
· NA
· not yet recruiting
NCT06671925 — A Community Health Worker-Led Program for Chronic Pain and Loneliness in Older Adults
· NA
· recruiting
Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
Sponsor: as reported to ClinicalTrials.gov by University of Michigan
Last refreshed: 1 November 2022
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT04066829.