Patient and physician preferences for anticancer drugs for the treatment of metastatic colorectal cancer: a discrete-choice experiment

Juan Marcos González,1 Sarika Ogale,2 Robert Morlock,2 Joshua Posner,1 Brett Hauber,1 Nicolas Sommer,2 Axel Grothey3 1Health Preference Assessment Department, RTI Health Solutions, Research Triangle Park, NC, 2Genentech, South San Francisco, CA, 3Division of Medical Oncology, Mayo Clinic,...

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Main Authors: González JM, Ogale S, Morlock R, Posner J, Hauber B, Sommer N, Grothey A
Format: Article
Language:English
Published: Dove Medical Press 2017-04-01
Series:Cancer Management and Research
Subjects:
Online Access:https://www.dovepress.com/patient-and-physician-preferences-for-anticancer-drugs-for-the-treatme-peer-reviewed-article-CMAR
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author González JM
Ogale S
Morlock R
Posner J
Hauber B
Sommer N
Grothey A
author_facet González JM
Ogale S
Morlock R
Posner J
Hauber B
Sommer N
Grothey A
author_sort González JM
collection DOAJ
description Juan Marcos González,1 Sarika Ogale,2 Robert Morlock,2 Joshua Posner,1 Brett Hauber,1 Nicolas Sommer,2 Axel Grothey3 1Health Preference Assessment Department, RTI Health Solutions, Research Triangle Park, NC, 2Genentech, South San Francisco, CA, 3Division of Medical Oncology, Mayo Clinic, Rochester, MN, USA Objective: Many publications describe preferences for colorectal cancer (CRC) screening; however, few studies elicited preferences for anticancer-drug treatment for metastatic CRC (mCRC). This study was designed to elicit preferences and risk tolerance among patients and oncologists in the USA for anticancer drugs to treat mCRC. Materials and methods: Patients aged 18 years or older with a self-reported diagnosis of mCRC and board-certified (or equivalent) oncologists who had treated patients with mCRC were recruited by two survey research companies from existing online patient panels in the USA. Additional oncologists were recruited from a list of US physicians. Patients and oncologists completed a discrete-choice experiment (DCE) survey. DCEs offer a systematic method of eliciting preferences and quantifying both the relative importance of treatment attributes and the tradeoffs respondents are willing to make among benefits and risks. Treatment attributes in the DCE were progression-free survival (PFS) and risks of severe papulopustular rash, serious hemorrhage, cardiopulmonary arrest, and gastrointestinal perforation. Patients’ and physicians’ maximum levels of acceptable treatment-related risks for two prespecified increases in efficacy were estimated. Results: A total of 127 patients and 150 oncologists completed the survey. Relative preferences for the treatment attributes in the study were mostly consistent with the expectation that better clinical outcomes were preferred over worse clinical outcomes. Risk tolerance varied between patients and physicians. On average, physicians were willing to tolerate higher risks than patients, although these differences were mostly not statistically significant. Post hoc latent-class analyses revealed that some patients and physicians were unwilling to forgo any efficacy to avoid toxicities, while others were willing to make such tradeoffs. Conclusion: Differences in preferences between patients and physicians suggest that there is the potential for improvement in patients’ well-being. Initiating or enhancing discussions about patient tolerance for toxicities, such as skin rash and gastrointestinal perforations, may help prescribe treatments that entail more appropriate benefit–risk tradeoffs. Keywords: metastatic colorectal cancer, discrete-choice experiment, patient preferences, physician preferences, risk tolerance
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spelling doaj.art-4068716de6454f3e9beb2ced2efc88392022-12-22T03:58:04ZengDove Medical PressCancer Management and Research1179-13222017-04-01Volume 914915832586Patient and physician preferences for anticancer drugs for the treatment of metastatic colorectal cancer: a discrete-choice experimentGonzález JMOgale SMorlock RPosner JHauber BSommer NGrothey AJuan Marcos González,1 Sarika Ogale,2 Robert Morlock,2 Joshua Posner,1 Brett Hauber,1 Nicolas Sommer,2 Axel Grothey3 1Health Preference Assessment Department, RTI Health Solutions, Research Triangle Park, NC, 2Genentech, South San Francisco, CA, 3Division of Medical Oncology, Mayo Clinic, Rochester, MN, USA Objective: Many publications describe preferences for colorectal cancer (CRC) screening; however, few studies elicited preferences for anticancer-drug treatment for metastatic CRC (mCRC). This study was designed to elicit preferences and risk tolerance among patients and oncologists in the USA for anticancer drugs to treat mCRC. Materials and methods: Patients aged 18 years or older with a self-reported diagnosis of mCRC and board-certified (or equivalent) oncologists who had treated patients with mCRC were recruited by two survey research companies from existing online patient panels in the USA. Additional oncologists were recruited from a list of US physicians. Patients and oncologists completed a discrete-choice experiment (DCE) survey. DCEs offer a systematic method of eliciting preferences and quantifying both the relative importance of treatment attributes and the tradeoffs respondents are willing to make among benefits and risks. Treatment attributes in the DCE were progression-free survival (PFS) and risks of severe papulopustular rash, serious hemorrhage, cardiopulmonary arrest, and gastrointestinal perforation. Patients’ and physicians’ maximum levels of acceptable treatment-related risks for two prespecified increases in efficacy were estimated. Results: A total of 127 patients and 150 oncologists completed the survey. Relative preferences for the treatment attributes in the study were mostly consistent with the expectation that better clinical outcomes were preferred over worse clinical outcomes. Risk tolerance varied between patients and physicians. On average, physicians were willing to tolerate higher risks than patients, although these differences were mostly not statistically significant. Post hoc latent-class analyses revealed that some patients and physicians were unwilling to forgo any efficacy to avoid toxicities, while others were willing to make such tradeoffs. Conclusion: Differences in preferences between patients and physicians suggest that there is the potential for improvement in patients’ well-being. Initiating or enhancing discussions about patient tolerance for toxicities, such as skin rash and gastrointestinal perforations, may help prescribe treatments that entail more appropriate benefit–risk tradeoffs. Keywords: metastatic colorectal cancer, discrete-choice experiment, patient preferences, physician preferences, risk tolerancehttps://www.dovepress.com/patient-and-physician-preferences-for-anticancer-drugs-for-the-treatme-peer-reviewed-article-CMARmetastatic colorectal cancerdiscrete-choice experimentpatient preferencesphysician preferencesrisk tolerance.
spellingShingle González JM
Ogale S
Morlock R
Posner J
Hauber B
Sommer N
Grothey A
Patient and physician preferences for anticancer drugs for the treatment of metastatic colorectal cancer: a discrete-choice experiment
Cancer Management and Research
metastatic colorectal cancer
discrete-choice experiment
patient preferences
physician preferences
risk tolerance.
title Patient and physician preferences for anticancer drugs for the treatment of metastatic colorectal cancer: a discrete-choice experiment
title_full Patient and physician preferences for anticancer drugs for the treatment of metastatic colorectal cancer: a discrete-choice experiment
title_fullStr Patient and physician preferences for anticancer drugs for the treatment of metastatic colorectal cancer: a discrete-choice experiment
title_full_unstemmed Patient and physician preferences for anticancer drugs for the treatment of metastatic colorectal cancer: a discrete-choice experiment
title_short Patient and physician preferences for anticancer drugs for the treatment of metastatic colorectal cancer: a discrete-choice experiment
title_sort patient and physician preferences for anticancer drugs for the treatment of metastatic colorectal cancer a discrete choice experiment
topic metastatic colorectal cancer
discrete-choice experiment
patient preferences
physician preferences
risk tolerance.
url https://www.dovepress.com/patient-and-physician-preferences-for-anticancer-drugs-for-the-treatme-peer-reviewed-article-CMAR
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