Assessment of the Effect of Naltrexone on Lofexidine Single Dose Pharmacokinetics in Healthy Subjects
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Fase 1
Kontakter og lokationer
Studiesteder
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Texas
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San Antonio, Texas, Forenede Stater, 78217
- Worldwide Clinical Trials
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
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.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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Eksperimentel: 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.
Andre navne:
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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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
Tidsramme: 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
Tidsramme: 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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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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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.
Tidsramme: 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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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Samarbejdspartnere
Samarbejdspartnere
Efterforskere
Efterforskere
- Ledende efterforsker: George Atiee, MD, Worldwide Clinical Trials
Datoer for undersøgelser
Studer store datoer
Studiestart
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
- Lægemidlers fysiologiske virkninger
- Adrenerge midler
- Neurotransmittermidler
- Molekylære mekanismer for farmakologisk virkning
- Antihypertensive midler
- Autonome agenter
- Agenter fra det perifere nervesystem
- Analgetika
- Sensoriske systemagenter
- Adrenerge alfa-2-receptoragonister
- Adrenerge alfa-agonister
- Adrenerge agonister
- Narkotiske antagonister
- Alkoholafskrækkende midler
- Sympatolytika
- Naltrexon
- Clonidin
- Lofexidin
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- USWM-LX1-1009
- 1R01DA030916 (Andet bevillings-/finansieringsnummer: National Institute on Drug Abuse)
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