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Trial record 1 of 1 for:    NCT01207427
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Evaluation of the Efficacy and Safety of ADL5945 for the Treatment of Opioid-induced Constipation in Adults Taking Opioid Therapy for Chronic Noncancer Pain

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT01207427
First Posted: September 23, 2010
Last Update Posted: February 3, 2016
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Cubist Pharmaceuticals LLC
  Purpose

Morphine and related opioid analgesics are known to slow gastrointestinal (GI) motility and reduce intestinal secretion through their binding to μ opioid receptors (MORs) within the GI tract. The most common symptoms associated with the effects of opioids are constipation and nausea and/or vomiting. Moreover, constipation is a common and distressing side effect of long-term opioid therapy.

The primary objective of this study was to compare ADL5945, a MOR antagonist, with placebo in the treatment of opioid-induced constipation (OIC) in adults taking long-term opioid therapy for chronic noncancer pain.


Condition Intervention Phase
Opioid Induced Constipation Drug: Placebo Drug: ADL5945 0.1 mg Drug: ADL5945 0.25 mg Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Randomized, Double-blind, Placebo-controlled, Phase 2 Study to Evaluate the Efficacy and Safety of ADL5945 for the Treatment of Opioid-induced Constipation in Adults Taking Opioid Therapy for Chronic Noncancer Pain

Resource links provided by NLM:


Further study details as provided by Cubist Pharmaceuticals LLC:

Primary Outcome Measures:
  • Change From Baseline in the Weekly Average of Spontaneous Bowel Movements (SBMs) During Treatment [ Time Frame: Baseline, Weeks 1 through 4 of treatment ]
    An SBM was defined as a bowel movement (BM) with no laxative use in the previous 24 hours. Each weekly SBM average was calculated as follows: (7 × number of SBMs) / (number of days with nonmissing data). The overall SBM rate for the 4-week double-blind treatment period was calculated as follows: (the average of the first week + the average of the second week + the average of the third week + the average of the fourth week) / 4.


Enrollment: 131
Study Start Date: October 2010
Study Completion Date: August 2011
Primary Completion Date: August 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Placebo Comparator: Placebo
Each participant received 1 placebo capsule orally twice daily (BID) during the Run-in Placebo Period (1 week), the Double-blind Treatment Period (4 weeks), and the Run-out Placebo Period (1 week).
Drug: Placebo
Experimental: ADL5945 0.1 mg
During the Run-in Placebo Period, each participant received 1 placebo capsule orally BID for 1 week. Then during the Double-blind Treatment Period, each participant received one 0.1-milligrams (mg) ADL5945 capsule orally BID for 4 weeks. Then during the Run-out Placebo Period, each participant received 1 placebo capsule orally BID for 1 week.
Drug: Placebo Drug: ADL5945 0.1 mg
Experimental: ADL5945 0.25 mg
During the Run-in Placebo Period, each participant received 1 placebo capsule orally BID for 1 week. Then during the Double-blind Treatment Period, each participant received one 0.25-mg ADL5945 capsule orally BID for 4 weeks. Then during the Run-out Placebo Period, each participant received 1 placebo capsule orally BID for 1 week.
Drug: Placebo Drug: ADL5945 0.25 mg

  Eligibility

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 75 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Key Inclusion Criteria

  • be a man or woman aged 18 to 75 years, inclusive, at the time of screening
  • have a body weight ≥45 kilograms (kg) and a body mass index (BMI) ≤40 kilograms per square meter (kg/m^2)
  • be taking a stable daily dose of opioids of ≥30-milligrams (mg) morphine-equivalent total -daily dose for chronic noncancer pain for ≥30 days before screening
  • have opioid-induced constipation (OIC) by history. Additionally, based on the data collected during the 1-week screening period, participants must have <3 spontaneous bowel movements (SBMs) per week and have experienced ≥1 other bowel movement (BM) symptom (that is, straining to pass a stool, lumpy hard stools or small pellets, or sense of incomplete evacuation after passing a stool) for ≥25% of the total BMs
  • be willing to discontinue use of all laxatives and stool softeners during the study period except as allowed by the protocol

Key Exclusion Criteria

  • be pregnant, lactating, or planning to become pregnant during the study
  • have aspartate aminotransferase (AST), alanine aminotransferase (ALT), blood urea nitrogen, or serum creatinine results ≥ 2 times the upper limit of normal
  • have a recent history of myocardial infarction (MI) or unstable angina
  • have an active malignancy of any type
  • be taking opioids primarily for fibromyalgia
  • be taking methadone as a maintenance medication (participants taking methadone for pain may be enrolled)
  • be taking intrathecal opioids for the management of pain
  • be taking tramadol, tapentadol, or any mixed agonist/antagonist opioid analgesics as the sole opioid for analgesia
  • be taking any μ-opioid receptors (MOR) antagonist, including opioids in combination with naloxone, naltrexone, or methylnaltrexone bromide
  • be taking medical marijuana for pain
  • have gastrointestinal (GI) or pelvic disorders known to affect bowel transit, produce GI obstruction, or contribute to bowel dysfunction
  • have taken antispasmodics, antidiarrheals, or prokinetics within 7 days before the start of the screening week
  • be taking nonopioid medications known to cause constipation
  • be taking antidiarrheals and have an incidence or a history of intermittent diarrhea or loose stools
  • be unwilling to abstain from grapefruit and grapefruit-containing products
  • have a history of alcoholism or illicit drug dependence or abuse within 5 years before screening
  • have positive results on a urine drug screen (excluding opioids) that indicate illicit drug use
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01207427


Locations
United States, California
Lotus Clinical Research, Inc
Pasadena, California, United States, 91105
Sponsors and Collaborators
Cubist Pharmaceuticals LLC
Investigators
Study Director: Bruce Berger, MD Cubist Pharmaceuticals LLC
  More Information

Responsible Party: Cubist Pharmaceuticals LLC
ClinicalTrials.gov Identifier: NCT01207427     History of Changes
Other Study ID Numbers: 2402-001
45CL242 ( Other Identifier: Cubist Study Number )
First Submitted: September 21, 2010
First Posted: September 23, 2010
Results First Submitted: April 21, 2015
Results First Posted: May 7, 2015
Last Update Posted: February 3, 2016
Last Verified: January 2016

Keywords provided by Cubist Pharmaceuticals LLC:
opioid therapy
constipation
chronic noncancer pain
mu opioid receptor antagonist
ADL5945

Additional relevant MeSH terms:
Constipation
Signs and Symptoms, Digestive
Signs and Symptoms
Analgesics, Opioid
Narcotics
Central Nervous System Depressants
Physiological Effects of Drugs
Analgesics
Sensory System Agents
Peripheral Nervous System Agents