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Methylnaltrexone bromide

Phase 2

Opioid-induced Constipation | Small molecule | Gastrointestinal |Bausch Health Companies Inc.|Last Updated: Nov 29, 2019

Success Probability

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment37

FDA Designations

No designations recorded

Clinical trial landscape

Methylnaltrexone bromide · 2 trials · 2 indications

Phase 2 1Phase 1 1
NCT00640146Study of Subcutaneous Methylnaltrexone (MNTX) in the Treatment of Opioid-Induced Constipation During Rehabilitation After Orthopedic ProceduresOpioid-induced Constipation
COMPLETED37 Analytics
PHASE2COMPLETED
Study of Subcutaneous Methylnaltrexone (MNTX) in the Treatment of Opioid-Induced Constipation During Rehabilitation After Orthopedic Procedures
Opioid-induced ConstipationUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of Participants With Laxation Response Within 2 Hours of the First Dose
2 hours

Percentage of participants who had a laxation (that is, bowel movement) within 2 hours after the first dose of study drug, were reported. Participants taking stool softeners within 24 hours of study drug dosing and participants taking rescue laxative medications within 48 hours of study drug dosing were assessed as treatment failures.

Percentage of Participants With Laxation Response Within 4 Hours of the First Dose
4 hours

Percentage of participants who had a laxation (that is, bowel movement) within 4 hours after the first dose of study drug, were reported. Participants taking stool softeners within 24 hours of study drug dosing and participants taking rescue laxative medications within 48 hours of study drug dosing were assessed as treatment failures.

Peak Plasma Concentration (Cmax) of MNTX and its Metabolites
7 days

To evaluate the PK profile of MNTX and its metabolites when administered as a SC injection once daily for seven days in healthy adult subjects.

Secondary Endpoints

Time to First Rescue-Free Bowel Movement (Laxation)
Baseline (Day 1) up to Day 4 or 7
Peak Time of Maximum Concentration (Tmax) of MNTX and its Metabolites
7 Days
Area Under the Plasma Concentration versus Time Curve (AUC) of MNTX and its Metabolites.
7 Days
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
MNTXEXPERIMENTALParticipants will receive methylnaltrexone (MNTX) 12 milligrams (mg) subcutaneously (SC) once daily for up to 4 or 7 days, depending upon the protocol version under which each participant is enrolled.
PlaceboPLACEBO_COMPARATORParticipants will receive placebo matching to MNTX SC once daily for up to 4 or 7 days, depending upon the protocol version under which each participant is enrolled.
Arm 1EXPERIMENTALMethylnaltrexone bromide

Interventions

NameTypeDescription
Methylnaltrexone bromideDRUGMethylnaltrexone will be administered as per the dose and schedule specified in the respective arm.
PlaceboDRUGPlacebo matching to methylnaltrexone will be administered as per the dose and schedule specified in the respective arm.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: 1. Male and female participants greater than or equal to (\>=) 18 years of age. 2. Participants must have undergone an orthopedic procedure (that is, total knee or hip replacement, spinal fusion, or reduction of fracture(s) with or without surgical fixation post trauma). 3. Part...

Countries:United States
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Frequently asked questions about Methylnaltrexone bromide

What is Methylnaltrexone bromide used for?

Methylnaltrexone bromide is a small molecule being studied for opioid-induced constipation and in healthy adult subjects. It is administered subcutaneously. The drug is currently in clinical development and is not approved for any use.

Who makes Methylnaltrexone bromide?

Methylnaltrexone bromide is being developed by Bausch Health Companies Inc., which trades under the ticker BHC. The company is conducting clinical trials to evaluate the drug for opioid-induced constipation and in healthy adult subjects.

What phase is Methylnaltrexone bromide in?

Methylnaltrexone bromide is in Phase 1 clinical development. It has completed a Phase 1 pharmacokinetic study in healthy adult subjects and a Phase 2 study in patients with opioid-induced constipation. The drug remains investigational.

What clinical trials is Methylnaltrexone bromide in?

Methylnaltrexone bromide has been studied in two completed trials. NCT00640146 was a Phase 2 study in opioid-induced constipation during rehabilitation after orthopedic procedures, enrolling 37 participants. NCT01366326 was a Phase 1 pharmacokinetic study in healthy adult subjects, enrolling 20 participants.

How does Methylnaltrexone bromide work?

Methylnaltrexone bromide is a small molecule that works by targeting opioid receptors in the gut. It is designed to block the constipating effects of opioids without affecting their pain-relieving action, thereby helping to relieve opioid-induced constipation.