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Drug Interaction Study of Isavuconazole and Methadone

This study has been completed.
Basilea Pharmaceutica International Ltd
Information provided by (Responsible Party):
Astellas Pharma Inc ( Astellas Pharma Global Development, Inc. ) Identifier:
First received: April 19, 2012
Last updated: June 28, 2012
Last verified: June 2012
The primary purpose of this study is to assess the effect of multiple doses of isavuconazole on the pharmacokinetics (PK) of methadone after single dose administration. The secondary purpose is to assess the safety and tolerability of isavuconazole alone and in combination with methadone.

Condition Intervention Phase
Pharmacokinetics of Isavuconazole
Pharmacokinetics of Methadone
Healthy Volunteers
Drug: Isavuconazole
Drug: Methadone
Phase 1

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: Open Label
Official Title: A Phase 1, Open-Label, Sequential Study of the Effect of Multiple Doses of Isavuconazole on the Pharmacokinetics of a Single Dose of Methadone in Healthy Adult Subjects

Resource links provided by NLM:

Further study details as provided by Astellas Pharma Inc:

Primary Outcome Measures:
  • Composite of pharmacokinetics (PK) of plasma for R-methadone and S-methadone: AUClast, AUCinf, and Cmax [ Time Frame: Days 1 and 20 ]
    Area under the curve (AUC) from time of dosing to last quantifiable concentration (AUClast ), AUC from time 0 extrapolated to infinity (AUCinf), maximum concentration (Cmax)

Secondary Outcome Measures:
  • Composite of pharmacokinetics (PK) of plasma for R-methadone and S-methadone : tmax,t1/2, Vz/F, and CL/F [ Time Frame: Days 1 and 20 ]
    Time to attain Cmax (tmax) , apparent terminal elimination half-life (t1/2), apparent volume of distribution (Vz /F), and apparent body clearance after oral dosing (CL/F)

  • PK of plasma isavuconazole: trough concentration (Ctrough) [ Time Frame: Days 18 and Days 21 through 29 ]
  • Composite of PK of plasma isavuconazole: AUC during the time interval between consecutive dosing (AUCtau), Cmax, and tmax [ Time Frame: Days 19 and 20 ]
  • Safety assessed by recording of adverse events, laboratory evaluations, electrocardiograms (ECGs) and vital signs [ Time Frame: Up to Day 36 ]

Enrollment: 24
Study Start Date: April 2012
Study Completion Date: June 2012
Primary Completion Date: June 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Isavuconazole and methadone
Single dose of methadone on Days 1 and 20, isavuconazole 3 times a day (TID) on Days 16-17 as a loading dose, isavuconazole once a day (QD) on Days 18-28
Drug: Isavuconazole
Other Names:
  • BAL8557
  • BAL4815
Drug: Methadone
Other Name: Dolopine


Ages Eligible for Study:   18 Years to 55 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • The subject has a body weight of at least 45 kg and has a body mass index (BMI) of 18 to 32 kg/m2, inclusive
  • Results for aspartate aminotransferase (AST) and alanine aminotransferase (ALT) must be ≤ upper limit of normal and total bilirubin must be ≤ 1.5 mg/dL
  • The female subject agrees to sexual abstinence, or is surgically sterile, postmenopausal (defined as at least 2 years at Screening without menses), or using a medically acceptable double barrier method (e.g. spermicide and diaphragm, or spermicide and condom) to prevent pregnancy and agrees to continue using this method from Screening until 3 weeks after the follow-up visit at the end of the study; and is not lactating or pregnant as documented by negative pregnancy tests at Screening and Day -1
  • The male subject agrees to sexual abstinence, is surgically sterile, or is using a medically acceptable method to prevent pregnancy and agrees to continue using this method from Screening until 3 weeks after the follow-up visit at the end of the study

Exclusion Criteria:

  • The subject has a history of unexplained syncope, cardiac arrest, unexplained cardiac arrhythmia or torsade de pointes, structural heart disease, or family history of Long QT syndrome (suggested by sudden death of a close relative at a young age due to possible or probable cardiac causes)
  • The subject has a positive result for hepatitis C antibodies, hepatitis B surface antigen at Screening or is known to be positive for human immunodeficiency virus (HIV)
  • The subject has a known or suspected allergy to any of the components of the trial products including methadone or the azole class of compounds, or a history of multiple and/or severe allergies to drugs or foods, or a history of severe anaphylactic reactions
  • The subject is a smoker (any use of tobacco or nicotine containing products) within 6 months prior to Screening
  • The subject has had treatment with prescription drugs or complementary and alternative medicines within 14 days prior to Day -1, or over-the-counter medications within 1 week prior to Day -1, with the exception of acetaminophen up to 2 g/day
  • The subject has a recent history (within the last 2 years) of drug or alcohol abuse, or a positive drug and/or alcohol screen
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Please refer to this study by its identifier: NCT01582425

United States, California
Parexel International, LLC
Glendale, California, United States, 91206
Sponsors and Collaborators
Astellas Pharma Global Development, Inc.
Basilea Pharmaceutica International Ltd
Study Director: Medical Director Astellas Pharma Global Development
  More Information

Responsible Party: Astellas Pharma Global Development, Inc. Identifier: NCT01582425     History of Changes
Other Study ID Numbers: 9766-CL-0027
Study First Received: April 19, 2012
Last Updated: June 28, 2012

Keywords provided by Astellas Pharma Inc:
Healthy Volunteers

Additional relevant MeSH terms:
Analgesics, Opioid
Central Nervous System Depressants
Physiological Effects of Drugs
Sensory System Agents
Peripheral Nervous System Agents
Antitussive Agents
Respiratory System Agents processed this record on May 25, 2017