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A a Single Dose Efficacy Study in Inducing Laxation in Advance Illness Patients

A Double-Blind Placebo-Controlled Study of Methylnaltrexone (MNTX) for the Relief of Constipation Due to Chronic Opioid Therapy in Patients With Advanced Medical Illness

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00401362
Enrollment
154
Registered
2006-11-20
Start date
2003-02-28
Completion date
2005-02-28
Last updated
2019-11-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Advanced Illness Patients With Opioid Induced Constipation

Brief summary

To test the effectiveness of MNTX in advanced illness subjects.

Detailed description

To determine the efficacy of MNTX compared to placebo to induce laxation in patients receiving opioids.

Interventions

Sponsors

Pfizer
CollaboratorINDUSTRY
Bausch Health Americas, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Advanced medical illness with a life expectancy of 1 to 6 months 2. No clinically significant laxation within 48 hours prior to the first dose of study drug 3. On stable opioid and laxative regimen for a least 3 days prior to treatment 4. Age greater than 18years 5. Females of child-bearing age must have a negative pregnancy test.

Exclusion criteria

1. Females who are pregnant or nursing. 2. Previous treatment with MNTX or prior treatment with naltrexone or naloxone for treatment of OIC 3. Any disease process suggestive of gastrointestinal obstruction 4. Fecal ostomy.

Design outcomes

Primary

MeasureTime frameDescription
Efficacy of SC MNTX compared with placebo in inducing laxation29 daysThe primary objective is to determine the efficacy of SC MNTX administered as a single dose, dose 1 and dose 2 compared with placebo in inducing laxation in 4 hours in patients with advanced medical illness and OIC who are poorly responsive to laxatives.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 20, 2026