Naloxegol for Opioid-Induced Constipation in Patients with Noncancer Pain  

Oleh:

Chey, William D. ; Webster, Lynn ; Sostek, Mark ; Barker, Peter N. ; Tack, Jan

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: The New England Journal of Medicine (keterangan: ada di Proquest) vol. 370 no. 25 (Jun. 2014), page 2387-2396.

Ketersediaan

Perpustakaan FK Nomor Panggil: N08.K.2014.01 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

Lihat Detail Induk

Isi artikel

Background Opioid-induced constipation is common and debilitating. We investigated the efficacy and safety of naloxegol, an oral, peripherally acting, µ-opioid receptor antagonist, for the treatment of opioid-induced constipation. Methods In two identical phase 3, double-blind studies (study 04, 652 participants; study 05, 700 participants), outpatients with noncancer pain and opioid-induced constipation were randomly assigned to receive a daily dose of 12.5 or 25 mg of naloxegol or placebo. The primary end point was the 12-week response rate (=3 spontaneous bowel movements per week and an increase from baseline of =1 spontaneous bowel movements for =9 of 12 weeks and for =3 of the final 4 weeks) in the intention-to-treat population. The key secondary end points were the response rate in the subpopulation of patients with an inadequate response to laxatives before enrollment, time to first postdose spontaneous bowel movement, and mean number of days per week with one or more spontaneous bowel movements. Results Response rates were significantly higher with 25 mg of naloxegol than with placebo (intention-to-treat population: study 04, 44.4% vs. 29.4%, P=0.001; study 05, 39.7% vs. 29.3%, P=0.02; patients with an inadequate response to laxatives: study 04, 48.7% vs. 28.8%, P=0.002; study 05, 46.8% vs. 31.4%, P=0.01); in study 04, response rates were also higher in the group treated with 12.5 mg of naloxegol (intention-to-treat population, 40.8% vs. 29.4%, P=0.02; patients with an inadequate response to laxatives, 42.6% vs. 28.8%, P=0.03). A shorter time to the first postdose spontaneous bowel movement and a higher mean number of days per week with one or more spontaneous bowel movements were observed with 25 mg of naloxegol versus placebo in both studies (P<0.001) and with 12.5 mg of naloxegol in study 04 (P<0.001). Pain scores and daily opioid dose were similar among the three groups. Adverse events (primarily gastrointestinal) occurred most frequently in the groups treated with 25 mg of naloxegol. Conclusions Treatment with naloxegol, as compared with placebo, resulted in a significantly higher rate of treatment response, without reducing opioid-mediated analgesia

Opini Anda

Klik untuk menuliskan opini Anda tentang koleksi ini!

Kembali