Evidence map›Paper›PMID 28077162›Full record

Trial reportTrials2017

A fixed inhaled nitrous oxide/oxygen mixture as an analgesic for adult cancer patients with breakthrough pain: study protocol for a randomized controlled trial.

Qiang Liu, Yu Wang, Xiang-Jiang Luo, Ning-Ju Wang, Ping Chen, Xin Jin, Guo-Xia Mu, Xiao-Min Chai, Yue-Juan Zhang, Yu-Xiang Li and 1 more

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Trials, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

8 citing papers in PubMed, 24 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

11 authors at 2 institutions in 1 country.

Qiang LiuSchool of Nursing, Ningxia Medical University, 1160 Sheng Li Street, Yinchuan, 750004, China.
Yu WangSchool of Nursing, Ningxia Medical University, 1160 Sheng Li Street, Yinchuan, 750004, China.
Xiang-Jiang LuoDepartment of Medical Oncology, General Hospital of Ningxia Medical University, Yinchuan, 750004, China.
Ning-Ju WangDepartment of Medical Oncology, General Hospital of Ningxia Medical University, Yinchuan, 750004, China.
Ping ChenDepartment of Medical Oncology, General Hospital of Ningxia Medical University, Yinchuan, 750004, China.
Xin JinSchool of Nursing, Ningxia Medical University, 1160 Sheng Li Street, Yinchuan, 750004, China.
Guo-Xia MuSchool of Nursing, Ningxia Medical University, 1160 Sheng Li Street, Yinchuan, 750004, China.
Xiao-Min ChaiSchool of Nursing, Ningxia Medical University, 1160 Sheng Li Street, Yinchuan, 750004, China.
Yue-Juan ZhangDepartment of Medical Oncology, General Hospital of Ningxia Medical University, Yinchuan, 750004, China.
Yu-Xiang LiSchool of Nursing, Ningxia Medical University, 1160 Sheng Li Street, Yinchuan, 750004, China. li_yuxiang@163.com.
Jian-Qiang YuDepartment of Pharmacology, Pharmaceutical Institute of Ningxia Medical University, 1160 Sheng Li Street, Yinchuan, 750004, China. yujq910315@163.com.
Ningxia Medical University · CNYinchuan First People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe management of breakthrough pain in cancer patients is always a challenge for medical professions. Occurring in 80% of cancer patients with advanced disease, breakthrough pain significantly decreases both patient's and caregiver's quality of life. The aim of this study is to assess the analgesic efficacy of a fixed inhaled nitrous oxide/oxygen mixture for adult cancer patients with breakthrough pain. METHODS/

designThis is a randomized, placebo-controlled, double-blind study; it will be conducted in the General Hospital of Ningxia Medical University. The target study subjects are at least 18 years old, and are hospitalized cancer patients who are receiving routine opioids to control cancer-related pain but still experience breakthrough pain. A total of 240 patients will be recruited and randomly allocated between three treatment groups (A, B, C) and a control group (group D) in a ratio of 3:1. All treatment groups (A, B, C) will receive standard pain treatment (oral immediate-release morphine) plus a pre-prepared nitrous oxide/oxygen mixture, and the control group (D) will receive the standard pain treatment plus oxygen. Patients, doctors, nurses, and data collectors are all blind to the experiment. Assessments will be taken before treatment (T0), at 5 min (T1) and 15 min (T2) during treatment, and at 5 min after treatment (T3). The primary endpoint measures will be the percentage of patients whose pain is relieved at T1, T2, and T3. Secondary outcome measures will include the safety of treatment, adverse events, and satisfaction from both health professionals and patients. DISCUSSION: This study aims to provide an effective and practical intervention for a fast breakthrough pain relief and to improve cancer patients' quality of life significantly. The Evidence-Based Medicine Working Group claim that a randomized, double-blind, placebo-controlled experimental intervention is the most appropriate design to demonstrate its efficacy, so this study could give a new approach to controlling breakthrough pain episodes.

trial registrationChiCTR-INC-16008075 . Registered on 8 March 2016.

Indexed as

Oxygen Inhalation TherapyAdministration, InhalationAnalgesicsBreakthrough PainChinaClinical ProtocolsDouble-Blind MethodHumansNeoplasmsNitrous OxidePain MeasurementPatient SatisfactionQuality of LifeResearch DesignSurveys and QuestionnairesTime FactorsAnalgesicsNitrous OxideAnalgesiaBreakthrough painCancer patientsNitrous oxide

Identifiers

PMID28077162
PMCPMC5225628
OpenAlexW2569843657

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.