Study of Methylnaltrexone in Opioid-Induced Constipation Patients

NCT ID: NCT02574819

Last Updated: 2015-10-14

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE2/PHASE3

Total Enrollment

198 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-04-30

Study Completion Date

2017-04-30

Brief Summary

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This is a multicenter, randomized, double-blind , placebo-controlled trail to investigate the safety and efficacy of subcutaneous methylnaltrexone for treating opioid-induced constipation in patients with advanced illness.

Detailed Description

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Methylnaltrexone is a quaternary derivative of the pure opioid antagonists naltrexone. It is fairly lipid soluble and readily cross the blood-brain barrier. This property provides methylnaltrexone with the potential to block the undesired side-effects of opioid pain medications predominantly mediated by receptors located peripherally while sparing opioid effects mediated at receptors in the central nervous system, most importantly analgesia.

This is a multicenter, randomized, double-blind , placebo-controlled trail to investigate the safety and efficacy of subcutaneous methylnaltrexone for treating opioid-induced constipation in patients with advanced illness. The randomization schedule was used to assign patients in a 2:1 ratio to multicenter or an equal volume of placebo administered subcutaneously on alternate days for 2 weeks. The clinical trail was estimated to enroll 180 patients totally.

Conditions

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Opioid-induced Constipation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Investigators

Study Groups

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Drug

Methylnaltrexone (MNTX) nearly 0.15mg/kg administered every other day for 2 weeks.

Group Type EXPERIMENTAL

Methylnaltrexone (MNTX)

Intervention Type DRUG

MNTX nearly 0.15mg/kg administered every other day for 2 weeks. Baseline laxatives and rescue laxative ( enemas/suppositories ) were allowed, but could not be administered within 4 hours of the study drug.

Placebo

Placebo administered every other day for 2 weeks.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Placebo administered every other day for 2 weeks. Baseline laxatives and rescue laxative ( enemas/suppositories ) were allowed, but could not be administered within 4 hours of the study drug.

Interventions

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Methylnaltrexone (MNTX)

MNTX nearly 0.15mg/kg administered every other day for 2 weeks. Baseline laxatives and rescue laxative ( enemas/suppositories ) were allowed, but could not be administered within 4 hours of the study drug.

Intervention Type DRUG

Placebo

Placebo administered every other day for 2 weeks. Baseline laxatives and rescue laxative ( enemas/suppositories ) were allowed, but could not be administered within 4 hours of the study drug.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* A life expectancy of 3 month or more
* Qualifying patients received opioids for analgesia for 1 week or more and a stable regimen of opioids and laxatives for 3 or more days before study entry
* Patients had opioid-induced constipation with either fewer than three laxation during the preceding week and no clinically meaningful laxation (as determined by the in investigator ) within 24h before the first study dose or no clinically meaningful laxation within 48h before the first study dose
* During the two-week trail , patients would keep their life habits (dietary fiber , fluid intake and physical activity)
* Patients volunteered for the trail
* Women of childbearing potential had negative pregnancy tests. Both male and female patients need to take effective contraceptives to avoid pregnancy.

Exclusion Criteria

* Constipation that was not primarily caused by opioids ( as determined by the investigator)
* Mechanical gastrointestinal obstruction, an indwelling peritoneal catheter, clinically active diverticular disease , fecal impaction , acute surgical abdomen , and fecal ostomy
* Patients had the surgery plan which would effect the results of pain assessment
* Patients had hypersensitivity to methylnaltrexone , naltrexone or naloxone or if any investigational drug or experimental product
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Chia Tai Tianqing Pharmaceutical Group Co., Ltd.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Shiying Yu, Professor

Role: PRINCIPAL_INVESTIGATOR

Tongji Hospital in Wuhan

Locations

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The Second Hospital of Anhui Medical University

Hefei, Anhui, China

Site Status RECRUITING

Fujian Provincial cancer Hospital

Fuzhou, Fujian, China

Site Status RECRUITING

Zhongnan Hospital of Wuhan University

Wuhan, Hebei, China

Site Status RECRUITING

Harbin Medical University Cancer Hospital

Harbin, Heilongjiang, China

Site Status RECRUITING

Henan Provincial Cancer Hospital

Zhengzhou, Henan, China

Site Status RECRUITING

The Affiliated Hospital of Xuzhou Medical College

Xuzhou, Jiangsu, China

Site Status RECRUITING

Jiangxi Cancer Hospital

Nanchang, Jiangxi, China

Site Status RECRUITING

Linyi Cancer Hospital

Linyi, Shandong, China

Site Status RECRUITING

Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine

Shanghai, Shanghai Municipality, China

Site Status RECRUITING

Xin Hua Hospital affiliated to Shanghai Jiao Tong University School of Medicine Chongming Branch

Shanghai, Shanghai Municipality, China

Site Status RECRUITING

Tangdu Hospital

Xian, Shanxi, China

Site Status RECRUITING

Tumor Hospital of Yunnan Province The Third Affiliated Hospital of Kunming Medical University

Kunming, Yunnan, China

Site Status RECRUITING

Countries

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China

Central Contacts

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Shiying Yu, Professor

Role: CONTACT

Yuan Chen, Professor

Role: CONTACT

Facility Contacts

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Zhendong Chen, Professor

Role: primary

Cheng Huang, Professor

Role: primary

Di Deng, Professor

Role: primary

Qingyuan Zhang, Professor

Role: primary

Wenying Deng, Professor

Role: primary

Zhengqiu Zhu, Professor

Role: primary

Meijian Wang, Professor

Role: primary

Jianhua Shi, Professor

Role: primary

Leizhen Zheng, Professor

Role: primary

Gang Ding, Professor

Role: primary

Helong Zhang, Professor

Role: primary

Runxiang Yang, Professor

Role: primary

Other Identifiers

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CTTQ-MNTX

Identifier Type: -

Identifier Source: org_study_id

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