The impact of treatment with eluxadoline on health-related quality of life among adult patients with irritable bowel syndrome with diarrhea

Jessica L Abel, Robyn T Carson, David A Andrae, Jessica L Abel, Robyn T Carson, David A Andrae

Abstract

Purpose: Irritable bowel syndrome with diarrhea (IBS-D) significantly impacts health-related quality of life (HRQOL). This post hoc analysis of two phase III trials evaluated the effects of eluxadoline treatment on disease-specific HRQOL among patients with IBS-D.

Methods: Adult patients meeting Rome III criteria for IBS-D were randomized to oral eluxadoline (75 mg or 100 mg) or placebo twice daily in two phase III clinical trials for 52 weeks (IBS-3001) and 26 weeks (IBS-3002). The Irritable Bowel Syndrome Quality of Life (IBS-QOL) questionnaire assessed disease-specific HRQOL throughout the study. Changes from baseline to Week 26 in IBS-QOL total and subscale scores were analyzed using an analysis of covariance model. Percentages of IBS-QOL responders with ≥ 14- and 20-point changes were evaluated for IBS-QOL total and subscale scores. A longitudinal mixed-effects model was fitted to evaluate mean IBS-QOL total scores. A cumulative distribution function for change from baseline to Week 26 in IBS-QOL total score was plotted.

Results: Mean changes from baseline to Week 26 for the IBS-QOL total and all subscale scores were significantly higher for patients treated with eluxadoline (both doses) compared to placebo. A significantly greater proportion of eluxadoline-treated patients were responders compared to placebo. Mean and mixed-effects model estimated mean IBS-QOL total scores were consistently higher for eluxadoline versus placebo over 52 weeks.

Conclusions: Compared to placebo, twice-daily eluxadoline treatment significantly improved HRQOL among patients with IBS-D in two phase III trials.

Keywords: Diarrhea; Eluxadoline; Health-related quality of life; IBS-QOL; Irritable bowel syndrome.

Conflict of interest statement

Conflict of interest

JLA and RTC are employees of Allergan plc and own stock and stock options. DAA is a former employee of Allergan plc and owns stock.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants included in the study.

Figures

Fig. 1
Fig. 1
Mean IBS-QOL total and subscale scores at baseline and Week 26 for the eluxadoline 75 mg and 100 mg treatment groups versus placebo. Mean differences were calculated for each treatment group, and comparisons were made between the different treatment groups. IBS-QOL Irritable Bowel Syndrome Quality of Life questionnaire. *p ≤ 0.05, **p < 0.01, ***p < 0.001 versus placebo, analysis of covariance
Fig. 2
Fig. 2
Longitudinal data on a mean IBS-QOL total scores and b mixed-effects model estimated means with 95% confidence intervals for the eluxadoline 75 mg and 100 mg treatment groups versus placebo. Data pooled from IBS-3001 and IBS-3002 for all time points up to Week 26; Weeks 36–52, IBS-3001 only. IBS-QOL Irritable Bowel Syndrome Quality of Life questionnaire
Fig. 3
Fig. 3
Cumulative distribution function plots of changes from baseline to Week 26 for IBS-QOL total scores for the eluxadoline 75 mg and 100 mg treatment groups versus placebo. IBS-QOL Irritable Bowel Syndrome Quality of Life questionnaire

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Source: PubMed

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