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Interventions for Breathlessness in Patients With Advanced Cancer

Comparative Effectiveness Review, No. 232

Investigators: , M.D., , M.D., , Pharm.D., , B.Sc., , B.S., , M.D., , M.D., , M.D., M.A., , M.D., , Ph.D., M.Ed., R.N., FAAN, and , M.D., M.P.H.

Rockville (MD): Agency for Healthcare Research and Quality (US); .
Report No.: 21-EHC024Report No.: 2020-SR-01

Structured Abstract

Objectives:

To assess benefits and harms of nonpharmacological and pharmacological interventions for breathlessness in adults with advanced cancer.

Data sources:

We searched PubMed®, Embase®, CINAHL®, ISI Web of Science, and the Cochrane Central Register of Controlled Trials through early May 2020.

Review methods:

We included randomized controlled trials (RCTs) and observational studies with a comparison group evaluating benefits and/or harms, and cohort studies reporting harms. Two reviewers independently screened search results, serially abstracted data, assessed risk of bias, and graded strength of evidence (SOE) for key outcomes: breathlessness, anxiety, health-related quality of life, and exercise capacity. We performed meta-analyses when possible and calculated standardized mean differences (SMDs).

Results:

We included 48 RCTs and 2 retrospective cohort studies (4,029 patients). The most commonly reported cancer types were lung cancer and mesothelioma. The baseline level of breathlessness varied in severity. Several nonpharmacological interventions were effective for breathlessness, including fans (SMD −2.09 [95% confidence interval (CI) −3.81 to −0.37]) (SOE: moderate), bilevel ventilation (estimated slope difference −0.58 [95% CI −0.92 to −0.23]), acupressure/reflexology, and multicomponent nonpharmacological interventions (behavioral/psychoeducational combined with activity/rehabilitation and integrative medicine). For pharmacological interventions, opioids were not more effective than placebo (SOE: moderate) for improving breathlessness (SMD −0.14 [95% CI −0.47 to 0.18]) or exercise capacity (SOE: moderate); most studies were of exertional breathlessness. Different doses or routes of administration of opioids did not differ in effectiveness for breathlessness (SOE: low). Anxiolytics were not more effective than placebo for breathlessness (SOE: low). Evidence for other pharmacological interventions was limited. Opioids, bilevel ventilation, and activity/rehabilitation interventions had some harms compared to usual care.

Conclusions:

Some nonpharmacological interventions, including fans, acupressure/reflexology, multicomponent interventions, and bilevel ventilation, were effective for breathlessness in advanced cancer. Evidence did not support opioids or other pharmacological interventions within the limits of the identified studies. More research is needed on when the benefits of opioids may exceed harms for broader, longer term outcomes related to breathlessness in this population.

Contents

Prepared for: Agency for Healthcare Research and Quality, U.S. Department of Health and Human Services, 5600 Fishers Lane, Rockville, MD 20857; www.ahrq.gov and Patient-Centered Outcomes Research Institute, 1828 L Street, NW, Ste. 900, Washington, DC 20036; www.pcori.org Contract No. 290-2015-00006-I Prepared by: Johns Hopkins University Evidence-based Practice Center, Baltimore, MD

Suggested citation:

Dy SM, Gupta A, Waldfogel JM, Sharma R, Zhang A, Feliciano JL, Sedhom R, Day J, Gersten RA, Davidson PM, Bass EB. Interventions for Breathlessness in Patients With Advanced Cancer. Comparative Effectiveness Review No. 232. (Prepared by the Johns Hopkins University Evidence-based Practice Center under Contract No. 290-2015-00006-I for the Agency for Healthcare Research and Quality and the Patient-Centered Outcomes Research Institute.) AHRQ Publication No. 21-EHC024, PCORI Publication No. 2020-SR-01. Rockville, MD: Agency for Healthcare Research and Quality; November 2020. DOI: https://doi.org/10.23970/AHRQEPCCER232. Posted final reports are located on the Effective Health Care Program search page.

This report is based on research conducted by the Johns Hopkins University Evidence-based Practice Center (EPC) under contract to the Agency for Healthcare Research and Quality (AHRQ), Rockville, MD (Contract No. 290-2015-00006-I). The Patient-Centered Outcomes Research Institute (PCORI) funded the report (PCORI Publication No. 2020-SR-01). The findings and conclusions in this document are those of the authors, who are responsible for its contents; the findings and conclusions do not necessarily represent the views of AHRQ or PCORI. Therefore, no statement in this report should be construed as an official position of PCORI, AHRQ, or the U.S. Department of Health and Human Services.

None of the investigators have any affiliations or financial involvement that conflicts with the material presented in this report.

The information in this report is intended to help healthcare decision makers—patients and clinicians, health system leaders, and policymakers, among others—make well-informed decisions and thereby improve the quality of healthcare services. This report is not intended to be a substitute for the application of clinical judgment. Anyone who makes decisions concerning the provision of clinical care should consider this report in the same way as any medical reference and in conjunction with all other pertinent information, i.e., in the context of available resources and circumstances presented by individual patients.

This report is made available to the public under the terms of a licensing agreement between the author and the Agency for Healthcare Research and Quality. This report may be used and reprinted without permission except those copyrighted materials that are clearly noted in the report. Further reproduction of those copyrighted materials is prohibited without the express permission of copyright holders.

PCORI, AHRQ, or U.S. Department of Health and Human Services endorsement of any derivative products that may be developed from this report, such as clinical practice guidelines, other quality enhancement tools, or reimbursement or coverage policies, may not be stated or implied.

AHRQ appreciates appropriate acknowledgment and citation of its work. Suggested language for acknowledgment: This work was based on an evidence report, Interventions for Breathlessness in Patients With Advanced Cancer, by the Evidence-based Practice Center Program at the Agency for Healthcare Research and Quality (AHRQ).

Bookshelf ID: NBK565137PMID: 33289989

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