CI

At a glance

ClinicalIndex Comparison Record
Phase 4Completed· 1,020 enrolled / 1,020 target
Drug / intervention
Placebo +9 moredrug
Likely dose
Morphine 2.5 mg i.v.from record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT05639712
NCT05639712Phase 4CompletedHigh Momentum (23.9/mo)Completion was 13mo ago

Understanding Opioid Use Before and After Surgery in Norway: A Prospective Multicenter Study and Randomized Double-blind Controlled Study

Oslo University Hospital·interventional·Posted Dec 6, 2022·Updated Jun 15, 2026

In Brief

A Phase 4 clinical trial evaluating Placebo, Morphine 2.5 mg i.v., and 8 other interventions for Opioid Use and Affective Symptoms. Completed, enrolled 1,020 participants across 1 site.

Signals

Enrolling ahead of pace

Detailed Summary

1. To investigate and compare the affective short-term effects of opioid drugs: morphine, oxycodone and fentanyl, administered to the patients before the induction of general anesthesia. 2. Charting opioid use after surgery in patients treated at hospitals in Norway 3. Identify predictors for postoperative opioid use and persistent pain

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesNorway

Timeline

Phase 4CompletedFinished
2023202420252026
First PostedDec 6, 2022
Enrollment StartDec 13, 2022
Primary CompletionMay 27, 2025
Study CompletionJun 27, 2025
TodayJul 2, 2026
Enrollment to primary: 2.5 yearsPosted 3.6 years ago

Arms & Interventions

Placeboplacebo_comparator

The patient is given standardized questions about their well-being and affective state before and after the administration of placebo (0.9% NaCl intravenously). This is carried out on the operating table right before anesthesia

Drug: Placebo
Morphine 2.5 mgactive_comparator

The patient is given standardized questions about their well-being and affective state before and after the administration of morphine 2.5 mg intravenously. This is carried out on the operating table right before anesthesia

Drug: Morphine 2.5 mg i.v.
Morphine 5 mgactive_comparator

The patient is given standardized questions about their well-being and affective state before and after the administration of morphine 5 mg intravenously. This is carried out on the operating table right before anesthesia

Drug: Morphine 5 mg i.v.
Morphine 10 mgactive_comparator

The patient is given standardized questions about their well-being and affective state before and after the administration of morphine 10 mg intravenously. This is carried out on the operating table right before anesthesia

Drug: Morphine 10 mg i.v.
Oxycodone 2.5 mgactive_comparator

The patient is given standardized questions about their well-being and affective state before and after the administration of oxycodone 2.5 mg intravenously. This is carried out on the operating table right before anesthesia

Drug: Oxycodone 2.5 mg i.v.
Oxycodone 5 mgactive_comparator

The patient is given standardized questions about their well-being and affective state before and after the administration of oxycodone 5 mg intravenously. This is carried out on the operating table right before anesthesia

Drug: Oxycodone 5 mg i.v.
Oxycodone 10 mgactive_comparator

The patient is given standardized questions about their well-being and affective state before and after the administration of oxycodone 10 mg intravenously. This is carried out on the operating table right before anesthesia

Drug: Oxycodone 10 mg i.v.
Fentanyl 0.025 mgactive_comparator

The patient is given standardized questions about their well-being and affective state before and after the administration of fentanyl 0.025 mg intravenously. This is carried out on the operating table right before anesthesia

Drug: Fentanyl 0.025 mg i.v.
Fentanyl 0.05 mgactive_comparator

The patient is given standardized questions about their well-being and affective state before and after the administration of fentanyl 0.05 mg intravenously. This is carried out on the operating table right before anesthesia

Drug: Fentanyl 0.05 mg i.v.
Fentanyl 0.1 mgactive_comparator

The patient is given standardized questions about their well-being and affective state before and after the administration of fentanyl 0.1 mg intravenously. This is carried out on the operating table right before anesthesia

Drug: Fentanyl 0.1 mg i.v.

Interventions

Placebodrug

The patient is given standardized questions about their well-being and affective state before and after the administration of placebo intravenously. This is carried out on the operating table right before anesthesia

Morphine 2.5 mg i.v.drug

The patient is given standardized questions about their well-being and affective state before and after the administration of 2.5 mg morphine intravenously. This is carried out on the operating table right before anesthesia

Morphine 5 mg i.v.drug

The patient is given standardized questions about their well-being and affective state before and after the administration of morphine 5 mg intravenously . This is carried out on the operating table right before anesthesia

Morphine 10 mg i.v.drug

The patient is given standardized questions about their well-being and affective state before and after the administration of morphine 10 mg intravenously . This is carried out on the operating table right before anesthesia

Oxycodone 2.5 mg i.v.drug

The patient is given standardized questions about their well-being and affective state before and after the administration of oxycodone 2.5 mg intravenously . This is carried out on the operating table right before anesthesia

Oxycodone 5 mg i.v.drug

The patient is given standardized questions about their well-being and affective state before and after the administration of oxycodone 5 mg intravenously . This is carried out on the operating table right before anesthesia

Oxycodone 10 mg i.v.drug

The patient is given standardized questions about their well-being and affective state before and after the administration of oxycodone 10 mg intravenously . This is carried out on the operating table right before anesthesia

Fentanyl 0.025 mg i.v.drug

The patient is given standardized questions about their well-being and affective state before and after the administration of fentanyl 0.025 mg intravenously . This is carried out on the operating table right before anesthesia

Fentanyl 0.05 mg i.v.drug

The patient is given standardized questions about their well-being and affective state before and after the administration of fentanyl 0.05 mg intravenously . This is carried out on the operating table right before anesthesia

Fentanyl 0.1 mg i.v.drug

The patient is given standardized questions about their well-being and affective state before and after the administration of fentanyl 0.1 mg intravenously . This is carried out on the operating table right before anesthesia