Clinical trial NCT00402038: Study of Methylnaltrexone (MNTX) for the Relief of Constipation
Official title: A Double-Blind, Phase 3, Two-Week, Placebo Controlled Study of Methylnaltrexone(MNTX) for the Relief of Constipation Due to Opioid Therapy in Advance Medical Illness.
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE3
Conditions: Advance Illness Patients With OIC
Lead sponsor: Bausch Health Americas, Inc.
Sponsor class: INDUSTRY
Collaborators: name: Wyeth is now a wholly owned subsidiary of Pfizer
First posted: 2006-11-22
Enrollment: 134
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: To determine the efficacy of subcutaneous MNTX to relieve opioid-induced constipation in patients with advanced medical illness.

Detailed description: This is a multi-center, double-blind, randomized parallel group study conducted in patients with advanced medical illness and opioid-induced constipation. Eligible patients are randomly assigned to receive SC doses of either MNTX, dose 1 or placebo every other day for 2 weeks. At Day 8, eligible patients, if allowed, could be escalated to a a higher dose of MNTX.

Eligibility criteria: Inclusion Criteria:

* 18 years of age and older
* Negative pregnancy test (serum or urine) at screening for all women of childbearing potential
* Advanced Medical Illness (i.e., terminal illness, such as incurable cancer or end of stage AIDS) with life expectancy of ≥ 1 month
* patient must sign ICF

Exclusion Criteria:

* Women who are pregnant and/or nursing
* Previous treatment with MNTX
* Participation in any other studies involving investigational products within 30 days prior to screening

Primary outcomes:
measure: Laxation within four hours of a single dose of SC MNTX and efficacy of SC MNTX every other day over a 1 week period.
timeFrame: 2 weeks
Secondary outcomes:
Other outcomes:
Locations:
city: Tarrytown
country: United States
facility: Progenics Pharmaceuticals, Inc.
state: New York
Study officials:
affiliation: Progenics Pharmaceuticals, Inc.
name: Tage Ramakrishna, MD
role: STUDY_DIRECTOR
References:
citation: Liao SS, Slatkin NE, Stambler N. The Influence of Age on Central Effects of Methylnaltrexone in Patients with Opioid-Induced Constipation. Drugs Aging. 2021 Jun;38(6):503-511. doi: 10.1007/s40266-021-00850-w. Epub 2021 Mar 31.
citation: Chamberlain BH, Rhiner M, Slatkin NE, Stambler N, Israel RJ. Subcutaneous methylnaltrexone for opioid-induced constipation in advanced-illness patients with or without active cancer. Pain Manag. 2020 Mar;10(2):73-84. doi: 10.2217/pmt-2019-0045. Epub 2020 Jan 17.
citation: Nalamachu SR, Pergolizzi J, Taylor R Jr, Slatkin NE, Barrett AC, Yu J, Bortey E, Paterson C, Forbes WP. Efficacy and Tolerability of Subcutaneous Methylnaltrexone in Patients with Advanced Illness and Opioid-Induced Constipation: A Responder Analysis of 2 Randomized, Placebo-Controlled Trials. Pain Pract. 2015 Jul;15(6):564-71. doi: 10.1111/papr.12218. Epub 2014 May 10.
citation: Lipman AG, Karver S, Cooney GA, Stambler N, Israel RJ. Methylnaltrexone for opioid-induced constipation in patients with advanced illness: a 3-month open-label treatment extension study. J Pain Palliat Care Pharmacother. 2011;25(2):136-45. doi: 10.3109/15360288.2011.573531.
citation: Thomas J, Karver S, Cooney GA, Chamberlain BH, Watt CK, Slatkin NE, Stambler N, Kremer AB, Israel RJ. Methylnaltrexone for opioid-induced constipation in advanced illness. N Engl J Med. 2008 May 29;358(22):2332-43. doi: 10.1056/NEJMoa0707377.