Evidence map›Paper›PMID 36324113›Full record

ArticleBMC palliative care2022

Methadone switching for refractory cancer pain.

Haiying Ding, Yu Song, Wenxiu Xin, Jiao Sun, Like Zhong, Qinfei Zhou, Chaoneng He, Liyan Gong, Luo Fang

Open access · goldAbstract read
In one paragraph

Article in BMC palliative care, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
4.0field-weighted citation impact, top 5% 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

14 citing papers in PubMed, 18 citations in OpenAlex.

  1. Methadone versus other opioids for refractory malignant bone pain: a pilot randomised controlled study.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2024
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  6. Opioid-induced neurotoxicity after opioid conversion to methadone in patients with cancer pain using the stop-and-go method: A multicenter retrospective cohort study.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2026
    Article
  7. How Racialized Approaches to Opioid Use Disorder and Opioid Misuse Management Hamper Pharmacoequity for Cancer Pain.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2025
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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

9 authors at 3 institutions in 1 country.

Haiying DingDepartment of Pharmacy, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital) , Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China.
Yu SongDepartment of Pharmacy, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital) , Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China.
Wenxiu XinDepartment of Pharmacy, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital) , Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China.
Jiao SunDepartment of Pharmacy, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital) , Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China.
Like ZhongDepartment of Pharmacy, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital) , Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China.
Qinfei ZhouDepartment of Rare Cancer & Head and Neck Medical Oncology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China.
Chaoneng HeDepartment of Pharmacy, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital) , Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China.
Liyan GongDepartment of Rare Cancer & Head and Neck Medical Oncology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China. 1413472557@qq.com.
Luo FangDepartment of Pharmacy, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital) , Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China. fangluo@zjcc.org.cn.
Cancer Hospital of Chinese Academy of Medical Sciences · CNUniversity of Chinese Academy of Sciences · CNZhejiang Cancer Hospital · CN

Funding

Natural Science Foundation of Zhejiang Province LQ19H280001Projects of Medical and Health Technology Program in Zhejiang Province 2018KY312Projects of Medical and Health Technology Program in Zhejiang Province 2019KY037
6 · The paper itself

Abstract

backgroundMethadone is commonly considered an alternative opioid treatment for refractory cancer pain. This study aims to investigate the efficacy, safety, and cost of methadone in the treatment of refractory cancer pain.

methodsA retrospective study was conducted in patients who used methadone for refractory cancer pain from April 2016 to December 2020 at a cancer specialized hospital. Pain control, evaluated via pain score and breakthrough pain frequency, and adverse events of methadone were compared with analgesic regimens prior to methadone administration. The factors potentially affecting the switching outcome were analyzed via multivariate analysis. Moreover, the cost of pain control was estimated.

resultsNinety patients received methadone for poor pain control (74.4%), intolerable adverse events (10.0%), or both (15.6%) after prior opioid treatments. Sixty-four patients (71.1%) were successfully switched to methadone with median pain score significantly decreased from 4.0 to 2.0 (p < 0.001) and median daily frequency of breakthrough pain from 3.0 to 0.0 (p < 0.001) at a maintained median conversion ratio of 6.3 [interquartile range (IQR): 4.0-10.0] to prior opioid treatment. Similar adverse event profiles of constipation, nausea, vomiting, and dizziness were observed between methadone and prior opioid regimens. The median daily cost of analgesic regimens was significantly reduced from $19.5 (IQR: 12.3-46.2) to $10.8 (IQR: 7.1-18.7) (p < 0.01) after switching to methadone. The 3-day switch method significantly improved the rate of successful switching compared with the stop and go method (odds ratio = 3.37, 95% CI: 1.30-8.76, p = 0.013).

conclusionMethadone is an effective, safe, and cost-saving treatment for patients with refractory cancer pain.

Indexed as

Breakthrough PainCancer PainNeoplasmsAnalgesics, OpioidHumansMethadoneRetrospective StudiesAnalgesics, OpioidMethadoneCostEfficacyMethadoneOpioids switchingRefractory cancer painSafety

Identifiers

PMID36324113
PMCPMC9628261
OpenAlexW4308135959

What OpenQuestion holds

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LicenceCC BY
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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.