Trial reportAdvances in therapy2020
Prolonged-Release (PR) Oxycodone/Naloxone Improves Bowel Function Compared with Oxycodone PR and Provides Effective Analgesia in Chinese Patients with Non-malignant Pain: A Randomized, Double-Blind Trial.
Trial report in Advances in therapy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01918098 (A Randomized, Double-blind, Double-dummy, Parallel-group, Multicenter Study to Demonstrate Improvement in Symptoms of Constipation in Subjects With Moderate to Severe Non-malignant Pain Taking Oxycodone Equivalent of ≥10 mg/Day and ≤50 mg/Day as Oxycodone/Naloxone Prolonged-release), which is not on this map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
A Randomized, Double-blind, Double-dummy, Parallel-group, Multicenter Study to Demonstrate Improvement in Symptoms of Constipation in Subjects With Moderate to Severe Non-malignant Pain Taking Oxycodone Equivalent of ≥10 mg/Day and ≤50 mg/Day as Oxycodone/Naloxone Prolonged-release (OXN) Compared to Subjects Taking Oxycodone Prolonged-release (OXY) Tablets Alone.
Who cites it
3 citing papers in PubMed, 8 citations in OpenAlex.
- The 90% Minimum Effective Dose of Oxycodone for Thoracoscopic Lobectomy in Elderly Patients: A Double-Blind Study Using a Biased-Coin Design.Drug design, development and therapy · 2026Trial
- Enhanced Recovery after Surgery in Open Fetal Spina Bifida Repair.Fetal diagnosis and therapy · 2024Article
- Magnesium hydroxide versus macrogol/electrolytes in the prevention of opioid-induced constipation in incurable cancer patients: study protocol for an open-label, randomized controlled trial (the OMAMA study).BMC palliative care · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors at 7 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionProlonged-release oxycodone/naloxone (OXN PR), combining an opioid analgesic with selective blockade of enteric µ-opioid receptors, provided effective analgesia and improved bowel function in patients with moderate-to-severe pain and opioid-induced constipation in clinical trials predominantly conducted in Western countries. This double-blind randomized controlled trial investigated OXN PR (N = 116) versus prolonged-release oxycodone (OXY PR, N = 115) for 8 weeks at doses up to 50 mg/day in patients with moderate-to-severe, chronic, non-malignant musculoskeletal pain and opioid-induced constipation recruited in China.
methodsA total of 234 patients at least 18 years of age with non-malignant musculoskeletal pain for more than 4 weeks that was moderate-to-severe in intensity and required round-the-clock opioid therapy were randomized (1:1) to OXN PR or OXY PR. The primary endpoint was bowel function using the Bowel Function Index (BFI). Secondary endpoints included safety, Brief Pain Inventory-Short Form (BPI-SF), use of analgesic and laxative rescue medication, and health-related quality of life (EQ-5D).
resultsWhile BFI scores were comparable at baseline, at week 8 improvements were greater with OXN PR vs OXY PR (least squares mean [LSM] difference (95% CI) - 9.1 (- 14.0, - 4.2); P < 0.001. From weeks 2 to 8, mean BFI scores were in the range of normal bowel function (≤ 28.8) with OXN PR but were in the range of constipation (> 28.8) at all timepoints with OXY PR. Analgesia with OXN PR was similar and non-inferior to OXY PR on the basis of modified BPI-SF average 24-h pain scores at week 8: LSM difference (95% CI) - 0.3 (- 0.5, - 0.1); P < 0.001. The most frequent treatment-related AEs were nausea (OXN PR 5% vs OXY PR 6%) and dizziness (4% vs 4%).
conclusionOXN PR provided clinically meaningful improvements in bowel function and effective analgesia in Chinese patients with moderate-to-severe musculoskeletal pain and pre-existing opioid-induced constipation.
trial registrationClinicalTrials.gov, identifier NCT01918098.
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