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Lofexidine Pharmacokinetics in the Presence of Paroxetine in Healthy Volunteers

U

US WorldMeds (USWM)

Status and phase

Completed
Phase 1

Conditions

Healthy

Treatments

Drug: Lofexidine
Drug: Paroxetine

Study type

Interventional

Funder types

Industry
NIH

Identifiers

NCT02681198
USWM-LX1-1010
U01DA033276 (U.S. NIH Grant/Contract)

Details and patient eligibility

About

The purpose of this study is to determine the pharmacokinetics, safety and tolerability of lofexidine HCl in the presence of paroxetine in healthy adults.

Full description

This is a Phase 1, open-label, single-sequence study to determine the pharmacokinetics, safety and tolerability of lofexidine HCl in the presence of paroxetine in healthy adults. Lofexidine HCl is an alpha-2 adrenergic agonist under development for the treatment of acute withdrawal from short-acting opioids. Paroxetine HCl is an orally administered psychotropic drug indicated in the treatment of major depressive, obsessive compulsive, panic, social anxiety, and generalized anxiety disorders. Paroxetine is a strong CYP2D6 inhibitor.

Enrollment

24 patients

Sex

All

Ages

18 to 60 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • Subject is between ages of 18 to 60 years at enrollment with a body mass index (BMI) between 18 and 35 kg/m2.
  • Female subjects must not be lactating, and must either a) be postmenopausal or b) agree to use an acceptable form of birth control from screening until 14 days after completion of the study.
  • Subject is in good health based on medical history, physical exam, laboratory profile, and electrocardiogram (ECG) as judged by the Investigator.
  • If subject smokes, subject agrees to limit smoking while in the study to not more than 10 cigarettes per day.

Exclusion criteria

  • History of suicidal ideations or depression requiring professional intervention including counseling or antidepressant medication over the past 12 months.
  • History or presence of allergic or adverse response to lofexidine, paroxetine, or related drugs.
  • Received any drugs capable of inhibiting CYP enzymes CYP1A2, CYP2C19, or CYP2D6 within 14 days or 5 half-lives (whichever is more) before 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.
  • Has a history of glucose-6-phosphate dehydrogenase (G6PD) deficiency.

Trial design

Primary purpose

Treatment

Allocation

N/A

Interventional model

Single Group Assignment

Masking

None (Open label)

24 participants in 1 patient group

Lofexidine and paroxetine
Experimental group
Description:
Lofexidine in the presence of paroxetine
Treatment:
Drug: Lofexidine
Drug: Paroxetine

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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