Assessment of the Effect of Naltrexone on Lofexidine Single Dose Pharmacokinetics in Healthy Subjects
Aperçu de l'étude
Statut
Statut
Les conditions
Les conditions
Intervention / Traitement
Intervention / Traitement
Description détaillée
Type d'étude
Type d'étude
Inscription (Réel)
Inscription
Phase
Phase
- La phase 1
Contacts et emplacements
Lieux d'étude
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Texas
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San Antonio, Texas, États-Unis, 78217
- Worldwide Clinical Trials
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Critères de participation
Critère d'éligibilité
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- BMI between 18 and 35 kg/m^2
- females of childbearing potential must be using contraception or must be surgically sterile
- Subject is in good health based on medical history, physical exam, laboratory profile, electrocardiogram (ECG) as judged by investigator
- If subject smokes, subject agrees to limit smoking while in the study to not more than 10 cigarettes per day
- Subject provides written informed consent before participation in the study, and an appropriate HIPAA (Health Insurance Portability and Accountability Act) form is signed and dated
Exclusion Criteria:
- Subject has a history of clinically significant disease, including cardiovascular, gastrointestinal (GI), renal, hepatic, pulmonary, endocrine, hematologic, vascular, immunologic, metabolic, or collagen disease.
- Females: pregnant, breastfeeding, planning to become pregnant, or a positive pregnancy test.
- Clinically significant illness within 4 weeks before Day -1.
- Use of herbal supplements within 3 weeks before Day -1.
- Received treatment of more than a single dose of a CYP3A4 inducer (e.g., rifampin, barbiturates, phenytoin, glucocorticoids, St. John's Wort) within 4 weeks before Day -1.
- Received treatment with a strong CYP3A4 inhibitor (e.g., ketoconazole, diltiazem, macrolide antibiotics) within 2 weeks before Day -1.
- Currently taking any medication identified as potentially producing QTc prolongations of 10 msec or greater.
- Received an investigational medication during the last month (30 days) preceding Day -1.
- Consumes more than 7 drinks/week for women or 14 drinks/week for men (1 drink = 5 ounces of wine or 12 ounces of beer or 1.5 ounces of hard liquor) or has a significant history of alcohol abuse or drug/chemical abuse within the last 1 year.
- Consumed grapefruit, grapefruit juice, Seville oranges, and/or starfruit within 4 days before Day -1.
- Positive urine drug or alcohol screen, unless positive result is due to an approved prescribed medication (e.g., pain medication or benzodiazepine).
- Positive human immunodeficiency virus (HIV) test or tests positive for hepatitis B surface antigen.
- Known allergy or intolerance to any compound in the test product or any other closely related compound.
- Donated blood/plasma, exceeding 500 mL, during the 3-month period before Day -1.
- Abnormal cardiovascular exam at Screening, including any of the following: clinically significant abnormal ECG (e.g., second or third degree heart block, uncontrolled arrhythmia, QTcF [Fridericia's correction] interval >450 msec for males and >470 msec for females); pulse<45 bpm or symptomatic bradycardia; systolic blood pressure <90 mmHg or symptomatic hypotension; blood pressure >165/95 mmHg; or prior history of myocardial infarction within 1 year before Day -1.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: N / A
- Modèle interventionnel: Affectation à un seul groupe
- Masquage: Aucun (étiquette ouverte)
Nombre de bras
Armes et Interventions
Groupe de participants / BrasGroupe de participants / Bras |
Intervention / TraitementIntervention / Traitement |
|---|---|
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Expérimental: Lofexidine + Naltrexone
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Lofexidine HCl (two 0.2 mg tablets) will be administered as a single oral dose (0.4 mg) on Day 1 and on Day 11.Commercially available naltrexone HCL tablets will be administered as a single oral 25 mg dose on Day 4 and as a single oral 50 mg dose on Days 5 through 13.
On Day 11 administration of both naltrexone and lofexidine will occur.
Dose administration times for each drug are to be standardized for all treatment days.
The scheduling of the naltrexone dose is to be standardized so that the naltrexone dose is administered 2 hours after the lofexidine dose on Day 11 when both drugs are administered.
Autres noms:
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Que mesure l'étude ?
Principaux critères de jugement
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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PK Profile for Lofexidine only: Cmax, Tmax, AUC, AUC 0-24, AUC 0-t, AUC 0-infinity, λz, and CL/F
Délai: Day 1 through Day 11
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Descriptive statistics will be used to summarize lofexidine concentrations at each time point and PK parameters by treatment phase.Comparisons will be made between Day 1 and Day 11 for Cmax, AUC0-24, AUC0-t, AUC0-∞, Tmax, and t1/2
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Day 1 through Day 11
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PK Profile for Naltrexone only: Cmax, AUC0-24, Tmax, and CL/F
Délai: Day 4 through Day 11
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Descriptive statistics will be used to summarize naltrexone concentrations at each time point and PK parameters by treatment phase.
Comparisons will be made between Day 10 and Day 11 for Cmax, AUC0-24, and Tmax at steady-state.
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Day 4 through Day 11
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Mesures de résultats secondaires
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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All Adverse Events (AEs) and Serious Adverse Events (SAEs) will be reported throughout the study and will include all subjects who receive at least 1 dose of study medication.
Délai: Day 1 through 14
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Treatment phases include lofexidine alone/washout [Days 1-3]; naltrexone alone [Days 4-10]; and lofexidine plus naltrexone [Days 11-14]
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Day 1 through 14
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Collaborateurs et enquêteurs
Parrainer
Parrainer
Collaborateurs
Collaborateurs
Les enquêteurs
Les enquêteurs
- Chercheur principal: George Atiee, MD, Worldwide Clinical Trials
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Début de l'étude
Achèvement primaire (Réel)
Achèvement primaire
Achèvement de l'étude (Réel)
Achèvement de l'étude
Dates d'inscription aux études
Première soumission
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Première publication
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour publiée
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
- Effets physiologiques des médicaments
- Agents adrénergiques
- Agents neurotransmetteurs
- Mécanismes moléculaires de l'action pharmacologique
- Agents antihypertenseurs
- Agents autonomes
- Agents du système nerveux périphérique
- Analgésiques
- Agents du système sensoriel
- Agonistes des récepteurs adrénergiques alpha-2
- Alpha-agonistes adrénergiques
- Agonistes adrénergiques
- Antagonistes des stupéfiants
- Dissuasion de l'alcool
- Sympatholytiques
- Naltrexone
- Clonidine
- Lofexidine
Autres numéros d'identification d'étude
Autres numéros d'identification d'étude
- USWM-LX1-1009
- 1R01DA030916 (Autre subvention/numéro de financement: National Institute on Drug Abuse)
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