Evidence map›Paper›PMID 31423335›Full record

ArticleESMO open2019

Safety and efficacy of naldemedine in cancer patients with opioid-induced constipation: a pooled, subgroup analysis of two randomised controlled studies.

Iwao Osaka, Hiroto Ishiki, Takaaki Yokota, Yukio Tada, Hiroki Sato, Masaharu Okamoto, Eriko Satomi

Open access · goldAbstract read
In one paragraph

Article in ESMO open, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.3field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 31 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Iwao OsakaDepartment of Palliative Care, HITO Medical Center, Shikokuchuo City, Ehime, Japan.ORCID 0000-0002-1863-0356
Hiroto IshikiDepartment of Palliative Medicine, National Cancer Center Hospital, Tokyo, Japan.
Takaaki YokotaDepartment of Global Development, Shionogi & Co, Ltd, Osaka, Japan.
Yukio TadaDepartment of Global Development, Shionogi & Co, Ltd, Osaka, Japan.
Hiroki SatoDepartment of Medical Affairs, Shionogi & Co, Ltd, Osaka, Japan.
Masaharu OkamotoDepartment of Medical Affairs, Shionogi & Co, Ltd, Osaka, Japan.
Eriko SatomiDepartment of Palliative Medicine, National Cancer Center Hospital, Tokyo, Japan.
Shionogi (Japan) · JPTokyo National Hospital · JPShikoku (Japan) · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis post hoc, pooled, subgroup analysis of two randomised studies evaluated baseline characteristics that may influence the efficacy and safety of naldemedine in patients with opioid-induced constipation (OIC) and cancer.

methodsData for patients who received 0.2 mg naldemedine or placebo were pooled from randomised, placebo-controlled, phase IIb and phase III studies. Proportions of spontaneous bowel movement (SBM) responders and patients with diarrhoea were assessed for each treatment group. For the patient subgroups with or without possible blood-brain barrier (BBB) disruptions, changes in Numerical Rating Scale (NRS) and Clinical Opioid Withdrawal Scale (COWS) scores were assessed.

resultsA total of 307 patients were included in this analysis (naldemedine: n=155; placebo: n=152). The pooled proportion of SBM responders was 73.5% with naldemedine versus 35.5% with placebo. There was a significant increase in the proportion of SBM responders with naldemedine versus placebo (38.0% (95% CI 27.6% to 48.4%); p<0.0001). Greater proportions of SBM responders and patients who experienced diarrhoea were observed with naldemedine versus placebo in all subgroups. Changes from baseline in NRS and COWS scores were similar with naldemedine or placebo in patients with or without brain metastases.

conclusionsAlthough not powered to detect statistically significant differences in treatment effect among subgroups, this study demonstrated that naldemedine appeared to benefit patients with OIC and cancer, irrespective of baseline characteristics, and did not seem to affect analgesia or withdrawal-even in patients with potential BBB disruptions. Baseline characteristics did not appear to affect the incidence of diarrhoea in patients who received naldemedine. TRIAL REGISTRATION NUMBERS: JapicCTI-111510 and JapicCTI-132340.

Indexed as

cancer painnaldemedineopioid-induced constipationspontaneous bowel movementsubgroup analysis

Identifiers

PMID31423335
PMCPMC6677965
OpenAlexW2966347491

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.