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      Patient-reported health-related quality of life, work productivity, and activity impairment during treatment with ALO-02 (extended-release oxycodone and sequestered naltrexone) for moderate-to-severe chronic low back pain

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          Abstract

          Background

          The efficacy of ALO-02, an abuse-deterrent formulation containing extended-release oxycodone and sequestered naltrexone, in the treatment of chronic low back pain (CLBP) was studied in a 12-week randomized controlled trial. Primary efficacy endpoint results have been published previously (Rauck et al., 2015). The current paper focuses on patient-reported outcomes for health-related quality of life (HRQL), work productivity, and activity impairment that were assessed during this study.

          Methods

          This was a double-blind, placebo-controlled, randomized withdrawal study in patients with moderate-to-severe CLBP. After a screening period (≤2 weeks), patients entered an open-label titration period (4–6 weeks). Treatment responders were then randomized to a double-blind placebo-controlled treatment period (12 weeks). HRQL was assessed using changes in the Short Form-36 v2 Health Survey (SF-36v2) and the EuroQol-5 Dimensions Health Questionnaire 3-Level version (EQ-5D-3L). Work productivity and regular activities were evaluated using the Work Productivity and Activity Impairment Questionnaire: Specific Health Problem (WPAI:SHP).

          Results

          A total of 410 patients received ALO-02 during the open-label titration period, of which 280 (intent-to-treat (ITT) population) were treated during the double-blind placebo-controlled treatment period (placebo, n = 134; ALO-02, n = 146). Significant improvement was observed for all SF-36v2 subscales and component scores ( p < 0.005) and the EQ-5D-3L summary index and visual analog scale ( p < 0.0001) during the titration period. Improvement was also significant ( p < 0.0001) for all WPAI:SHP outcomes except ‘work time missed due to CLBP’ for the titration period. Significant differences favoring ALO-02 compared with placebo were only observed for the SF-36v2 Bodily Pain subscale ( p ≤ 0.0232; ITT population) during the double-blind treatment period and the overall study period (screening to the end of the double-blind treatment period). The percentage change in activity impairment due to low back pain subscale of the WPAI:SHP significantly favored ALO-02 compared with placebo for the ITT population when considering the overall study period ( p = 0.0040).

          Conclusions

          HRQL, work productivity, and activity impairment may be improved with ALO-02 treatment.

          Trial registration

          ClinicalTrials.gov NCT01571362, registered April 3, 2012.

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          Most cited references9

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          Clinical guidelines for the use of chronic opioid therapy in chronic noncancer pain.

          Use of chronic opioid therapy for chronic noncancer pain has increased substantially. The American Pain Society and the American Academy of Pain Medicine commissioned a systematic review of the evidence on chronic opioid therapy for chronic noncancer pain and convened a multidisciplinary expert panel to review the evidence and formulate recommendations. Although evidence is limited, the expert panel concluded that chronic opioid therapy can be an effective therapy for carefully selected and monitored patients with chronic noncancer pain. However, opioids are also associated with potentially serious harms, including opioid-related adverse effects and outcomes related to the abuse potential of opioids. The recommendations presented in this document provide guidance on patient selection and risk stratification; informed consent and opioid management plans; initiation and titration of chronic opioid therapy; use of methadone; monitoring of patients on chronic opioid therapy; dose escalations, high-dose opioid therapy, opioid rotation, and indications for discontinuation of therapy; prevention and management of opioid-related adverse effects; driving and work safety; identifying a medical home and when to obtain consultation; management of breakthrough pain; chronic opioid therapy in pregnancy; and opioid-related policies. Safe and effective chronic opioid therapy for chronic noncancer pain requires clinical skills and knowledge in both the principles of opioid prescribing and on the assessment and management of risks associated with opioid abuse, addiction, and diversion. Although evidence is limited in many areas related to use of opioids for chronic noncancer pain, this guideline provides recommendations developed by a multidisciplinary expert panel after a systematic review of the evidence.
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            Incorporating the patient's perspective into drug development and communication: an ad hoc task force report of the Patient-Reported Outcomes (PRO) Harmonization Group meeting at the Food and Drug Administration, February 16, 2001.

            The extent to which patient-based outcomes can be used to evaluate and communicate the effect of new drugs and devices is a subject of much debate. Criteria for evaluating the scientific quality of data to support health-related quality of life (HRQL) and other patient-based labeling and promotional claims in the United States and Europe have been proposed by various scientists and organizations. Since March 2000, a working group composed of members of the International Society for Quality of Life Research (ISOQOL), the International Society for Pharmacoeconomics and Outcomes Research (ISPOR), the Pharmaceutical Manufacturer's Association Health Outcomes Committee (PhRMA-HOC), and the European Regulatory Issues on Quality of Life Assessment (ERIQA) met to discuss and coordinate the various recommendations by their respective groups and address the need to harmonize outcomes review criteria within and across United States and European regulatory agencies. Over time, the discussion expanded from HRQL outcomes to include any outcome based on data provided by the patient or patient proxy, that is, patient-reported outcomes (PROs). The working group therefore became known as the PRO Harmonization Group. Working with a member of the US Food and Drug Administration (FDA), four key issues requiring clarification were identified: how PROs are defined and put into operation for research purposes; the added value of PROs in the drug review and evaluation process; selected questions related to the PRO measurement and research methodology; and the interest and demand for PRO information by decision makers. On February 15, 2001, all members of the PRO Harmonization Group attended a meeting in Rockville, Maryland, to discuss these four issues further, and on February 16, 2001, a formal presentation was made to representatives from various departments and reviewing divisions of the FDA. These presentations are summarized in this report. All participants agreed that PROs are important for understanding the impact of treatment on patient functioning and well-being. They also stressed the need to communicate PRO information to key decision makers, including regulatory agencies, clinicians, patients and their families, and payers. Finally, the meeting resulted in plans for continuing the dialogue on PRO measurement and interpretation. The February 16, 2001, meeting represented an important step in harmonizing efforts across various organizations and in opening a dialogue with the FDA around major issues related to methodologic standards for measuring and interpreting PROs in the drug evaluation process.
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              Relieving pain in America: a blueprint for transforming prevention, care, education, and research

              (2011)
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                Author and article information

                Contributors
                alexandra.barsdorf@pfizer.com
                Gernot.wolfram@pfizer.com
                Journal
                Health Qual Life Outcomes
                Health Qual Life Outcomes
                Health and Quality of Life Outcomes
                BioMed Central (London )
                1477-7525
                17 October 2017
                17 October 2017
                2017
                : 15
                : 202
                Affiliations
                [1 ]Non-Surgical Orthopaedics, PC, 335 Roselane St NW, Marietta, GA 30067 USA
                [2 ]ISNI 0000 0000 8800 7493, GRID grid.410513.2, Pfizer Inc, ; 235 E 42nd St, New York, NY 10017 USA
                [3 ]ISNI 0000 0000 8800 7493, GRID grid.410513.2, Pfizer Inc, ; 4222 Emperor Boulevard, Suite 335, Durham, NC 27703 USA
                Article
                749
                10.1186/s12955-017-0749-y
                5645978
                29041942
                748cd57d-c50a-4e13-9605-4606161463b9
                © The Author(s). 2017

                Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License ( http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver ( http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

                History
                : 20 December 2016
                : 25 August 2017
                Funding
                Funded by: FundRef http://dx.doi.org/10.13039/100004319, Pfizer;
                Categories
                Research
                Custom metadata
                © The Author(s) 2017

                Health & Social care
                abuse-deterrent opioids,patient-reported outcomes,chronic low back pain,naltrexone,oxycodone and extended-release opioid

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