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Drug Interaction Study of the Effect of Ketoconazole at Steady State on the Pharmacokinetics of a Single Dose of Isavuconazole in Healthy Adult Subjects

A Phase 1, Randomized, Open-Label, Two-Arm, Parallel Group Study of the Effect of Ketoconazole at Steady State on the Pharmacokinetics of a Single Dose of Isavuconazole in Healthy Adult Subjects

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01657838
Enrollment
24
Registered
2012-08-06
Start date
2012-05-31
Completion date
2012-05-31
Last updated
2015-09-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Adult Volunteers, Pharmacokinetics of Isavuconazole, Pharmacokinetics of Ketoconazole

Keywords

Isavuconazole, Ketoconazole, Healthy Volunteers, BAL8557, BAL4815

Brief summary

The purpose of this study is to assess the effect of ketoconazole at steady state on the pharmacokinetics of a single dose of isavuconazole in healthy adult subjects.

Interventions

DRUGIsavuconazole

oral

DRUGKetoconazole

oral

Sponsors

Basilea Pharmaceutica International Ltd
CollaboratorINDUSTRY
Astellas Pharma Global Development, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
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) and total bilirubin must not be above the normal range * 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 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 during the study period

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 or 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 or the azole class of compounds or a history of multiple and/or severe allergies to drugs or foods (as judged by the investigator), 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 occasionally use of ibuprofen * The subject has a recent history (within the last 2 years) of drug or alcohol abuse, or a positive drug and/or alcohol screen

Design outcomes

Primary

MeasureTime frameDescription
Pharmacokinetic (PK) profile for isavuconazole (in plasma): AUClast , CmaxDay 1 (Arm 1) and Day 4 (Arm 2): predose and 0.5, 1, 2, 4, 6, 8, 10, 12, 20, 24, 36, 48, 72, 96,120,144,168,192, 216, 240, 264, 288, 312, 336, 360, 384, 408, 432, 456, 480 and 504 hours post-doseArea under the concentration-time curve from time of dosing to the last quantifiable concentration (AUClast) and maximum concentration (Cmax)

Secondary

MeasureTime frameDescription
PK profile for isavuconazole (in plasma): AUCinf, tmax, CL/F, Vz/F, and t1/2Day 1(Arm 1) and Day 4 (Arm 2): predose and 0.5, 1, 2, 4, 6, 8, 10, 12, 20, 24, 36, 48, 72, 96,120,144,168,192, 216, 240, 264, 288, 312, 336, 360, 384, 408, 432, 456, 480 and 504 hours post-doseArea under the concentration-time curve from time 0 extrapolated to infinity (AUCinf), Time to attain Cmax (tmax), apparent body clearance after oral dosing (CL/F), apparent volume of distribution (Vz/F), and apparent terminal elimination half-life (t1/2)
PK for ketoconazole (in plasma): trough concentration (Ctrough)Day 2 (Arm 2): predose
PK profile for ketoconazole (in plasma): AUCtau, Cmax, and tmaxDays 3 and 4: predose and 0.5,1, 2, 4, 6, 8,12 and 24 hours post-doseAUC during time interval between consecutive dosing (AUCtau)
Safety assessed by recording of adverse events, clinical laboratory evaluation, electrocardiograms (ECGs) and vital signsDay 1 through Day 25 (± 2 days)

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026