MedPath

Methylnaltrexone

Generic Name
Methylnaltrexone
Brand Names
Relistor
Drug Type
Small Molecule
Chemical Formula
C21H26NO4
CAS Number
916055-93-1
Unique Ingredient Identifier
0RK7M7IABE

Overview

Methylnaltrexone is a pheriphally-acting μ-opioid antagonist that acts on the gastrointestinal tract to decrease opioid-induced constipation without producing analgesic effects or withdrawal symptoms. It is also a weak CYP2D6 inhibitor. FDA approved in 2008.

Indication

Treatment of opioids induced constipation in palliative patients that are inadequately responding to laxative therapy.

Associated Conditions

  • Opioid Induced Constipation (OIC)

Clinical Trials

Title
Posted
Study ID
Phase
Status
Sponsor
2023/12/08
Phase 4
Recruiting
2021/06/18
N/A
Withdrawn
2021/03/09
Not Applicable
Recruiting
2021/02/08
Phase 2
Completed
Asbjørn Mohr Drewes
2019/11/05
Phase 3
Withdrawn
2019/09/10
Phase 2
Withdrawn
2019/02/25
Phase 2
Completed
2018/05/14
Phase 4
Completed
2017/01/09
Not Applicable
Completed
2016/11/30
Phase 4
Terminated

FDA Drug Approvals

Approved Product
Manufacturer
NDC Code
Route
Strength
Effective Date
Salix Pharmaceuticals, Inc.
65649-551
SUBCUTANEOUS
12 mg in 0.6 mL
12/12/2023
Salix Pharmaceuticals, Inc.
65649-552
SUBCUTANEOUS
8 mg in 0.4 mL
12/12/2023
Salix Pharmaceuticals, Inc.
65649-150
ORAL
150 mg in 1 1
12/12/2023

EMA Drug Approvals

Approved Product
Authorization Holder
Status
Issued Date
Authorised
7/1/2008

HSA Drug Approvals

Approved Product
Manufacturer
Approval Number
Dosage Form
Strength
Approval Date
Relistor Solution For Injection 12mg/0.6mL
SIN13783P
INJECTION, SOLUTION
12mg/0.6mL
4/7/2010

NMPA Drug Approvals

Approved Product
Company
Approval Number
Drug Type
Dosage Form
Approval Date
No NMPA approvals found for this drug.

PPB Drug Approvals

Approved Product
Registration No.
Company
Licence No.
Strength
Registration Date
No PPB approvals found for this drug.

TGA Drug Approvals

Approved Product
ARTG ID
Sponsor
Registration Type
Status
Registration Date
RELISTOR methylnaltrexone bromide 12 mg/0.6 mL solution for injection vial
144062
Link Medical Products Pty Ltd T/A Link Pharmaceuticals
Medicine
A
11/17/2008

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