Study Evaluating the Efficacy and Safety of Subcutaneous Methylnaltrexone (MOA-728) for the Treatment of Opioid-Induced-Constipation
A Multicenter, Randomized, Double-Blind, Placebo-Controlled, And Parallel-Group Study Of Subcutaneous Methylnaltrexone (MOA-728) For The Treatment Of Opioid-Induced Constipation In Adult Subjects
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Subjects received subcutaneous methylnaltrexone (also referred to as MOA-728 or MNTX) or placebo every other day beginning on Day 1 up to a maximum of 7 doses during the 2-week double-blind period.
Inclusion criteria for this study included subjects with advanced illness or subjects with chronic nonmalignant pain. The actual study population included only subjects with cancer-related advanced illness.
All subjects who completed the double-blind treatment phase of this study could elect to receive methylnaltrexone during a 12-week open-label extension study, provided eligibility criteria were met. Subjects who did not continue in the open-label extension study had a follow-up visit 2 weeks after their last dose of test article.
Type d'étude
Inscription (Réel)
Phase
- Phase 3
Contacts et emplacements
Lieux d'étude
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Seoul, Corée, République de, 137-701
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Seoul, Corée, République de, 135-710
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Seoul, Corée, République de, 152-703
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Kyounggi-do
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Koyang-shi, Kyounggi-do, Corée, République de, 410-719
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Tainan, Taïwan, 70428
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Taipei TOC, Taïwan, 100
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- Men and women who are at least 18 years of age, and who have a diagnosis of advanced illness with anticipated life expectancy >= 1 month;
- Is receiving a regular dose of opioids for the control of pain;
- Has a diagnosis of opioid induced constipation;
- Is on a stable laxative regimen.
Exclusion Criteria:
- Has a known or suspected mechanical gastrointestinal obstruction, or any potential non-opioid cause of bowel dysfunction contributed to constipation;
- Has evidence of current fecal impaction;
- Has evidence of active diverticulitis, or peritonitis, or a history of bowel surgery within 30 days before test article administration;
- Has a body weight less than 27 kg
- Has any major illness/condition that, in the investigator's judgment, will substantially increase the risk associated with the subject's participation in and completion of the study, or could preclude the evaluation of the subject's response.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Quadruple
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
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Expérimental: Methylnaltrexone double-blind
Methylnaltrexone once every other day.
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Subjects received 0.6 mL (12 mg) every other day if weight ≥ 62kg; 0.4 mL (8 mg) every other day if weight between 38 and < 62 kg; or 0.0075 mL/kg (0.15 mg/kg) every other day if weight between 27 and <38 kg. Study duration: 2 weeks double-blind period (MNTX treatments) followed by 12 weeks open-label extension period (MNTX treatments).
Autres noms:
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Comparateur placebo: Placebo
Placebo once every other day.
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Subjects received matching placebo injections. Study duration: 2 weeks double-blind period (placebo treatments) followed by 12 weeks open-label extension period (MNTX treatments). |
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Autre: Methylnaltrexone open-label
Subjects who completed the double-blind period had the option to receive methylnaltrexone once every other day during a 12-week, open-label extension period.
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Subjects received 0.6 mL (12 mg) every other day if weight ≥ 62kg; 0.4 mL (8 mg) every other day if weight between 38 and < 62 kg; or 0.0075 mL/kg (0.15 mg/kg) every other day if weight between 27 and <38 kg. Study duration: 2 weeks double-blind period (MNTX treatments) followed by 12 weeks open-label extension period (MNTX treatments).
Autres noms:
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
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The Proportion of Subjects Having a Rescue-free Bowel Movement (RFBM) Within 4 Hours After the First Injection.
Délai: Up to 4 hours after the first injection
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There were 2 co-primary endpoints for this study.
This measurement is the first of the 2 co-primary endpoints.
This endpoint measures the percentage of patients who had an RFBM within 4 hours after the first dose of test article during the double-blind period; data are expressed as percentages of patients for the MNTX and placebo groups.
To qualify as rescue free, the bowel movement could not occur within 6 hours after a rectal intervention (ie, rectal suppository, enema, manual disimpaction).
Note that efficacy results (primary and secondary outcomes) are presented for the double-blind period only.
Therefore, no efficacy results are presented for the open-label period.
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Up to 4 hours after the first injection
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The Proportion of Subjects Having a Rescue-free Bowel Movement (RFBM) Within 4 Hours After Each Dose During Double-blind Period.
Délai: Within 4 Hours After Each Dose During the 2 weeks Double-Blind Period
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This measurement is the second of the 2 co-primary endpoints.
This endpoint measures the percentage of patients who had an RFBM within 4 hours after each dose of test article during the double-blind period; data are expressed as percentages of patients by dose (first, second, third, fourth, etc.) for the MNTX and placebo groups.
The definition of RFBM is described above (see first co-primary endpoint).
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Within 4 Hours After Each Dose During the 2 weeks Double-Blind Period
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
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Percentage of Injections Resulting in RFBM Within 4 Hours After Test Article Administration.
Délai: Within 4 Hours After Each Dose During the 2 weeks Double-Blind Period
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This endpoint measures the percentage of injections resulting in RFBMs within 4 hours after test article administration during the double-blind period.
The percentage of injections resulting in RFBMs is calculated for each patient and then data are expressed as the mean (± standard deviation) percentage for the MNTX and placebo groups.
The definition of RFBM is described above (see first co-primary endpoint).
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Within 4 Hours After Each Dose During the 2 weeks Double-Blind Period
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Collaborateurs et enquêteurs
Parrainer
Collaborateurs
Les enquêteurs
- Directeur d'études: Enoch Bortey, Bausch Health Americas, Inc.
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
- Les troubles mentaux
- Troubles induits chimiquement
- Troubles liés à une substance
- Signes et symptômes digestifs
- Troubles liés aux stupéfiants
- Constipation
- Constipation induite par les opioïdes
- Effets physiologiques des médicaments
- Agents du système nerveux périphérique
- Agents du système sensoriel
- Antagonistes des stupéfiants
- Méthylnaltrexone
Autres numéros d'identification d'étude
- 3200K1-3361
- B2541004
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