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Absolute BA and OZ439 PK Effect of Different OZ439 Dose Volumes and Cobicistat Co-administration Study

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT04069221
Recruitment Status : Completed
First Posted : August 28, 2019
Results First Posted : November 26, 2019
Last Update Posted : November 26, 2019
Sponsor:
Information provided by (Responsible Party):
Medicines for Malaria Venture

Brief Summary:
This study is an open-label, two-part study to determine the absolute bioavailability (BA) of OZ439 using simultaneous intravenous [14C]-OZ439 microdose/800mg oral dosing and to investigate the pharmacokinetics (PK) of OZ439 granules administered as single doses suspended in different volumes and when co-administered with a single dose of Cobicistat, a strong CYP3A4 inhibitor, to healthy subjects in fasted state.

Condition or disease Intervention/treatment Phase
Malaria Drug: Single oral dose of 800 mg OZ439 Drug: Single oral dose of 400 mg OZ439 Drug: Single oral dose of cobicistat Drug: iv infusion of [14C]-OZ439 Phase 1

Detailed Description:

Primary objectives of this study are:

  • to determine the absolute bioavailability of OZ439 following a single oral dose of OZ439 dispersion and a simultaneous single intravenous (iv) microdose (100 μg) infusion of [14C]-OZ439 under fasted conditions (Part 1)
  • To evaluate the effects of a single oral dose of cobicistat, a strong cytochrome P450 (CYP) 3A4 inhibitor, on the pharmacokinetic (PK) profile of a single oral dose of a dispersion of OZ439 simple granules under fasted conditions (Part 2)
  • To evaluate the PK of single doses of OZ439 granules when restricting the target dosing volumes to 64.5 or 100 mL (Parts 1 and 2)

Secondary objectives are:

  • To assess the safety and tolerability of OZ439 when administered alone, and to assess the safety and tolerability of OZ439 and cobicistat when co-administered as single doses to healthy subjects (Parts 1 and 2)
  • To determine the PK parameters of OZ439 single iv microdose (100 μg) infusion of [14C]-OZ439 (Part 1)
  • To assess the effects of the total dosing volume and of dose to volume ratio on OZ439 PK under fasted conditions (Parts 1 and 2)
  • To determine the PK parameters and exposures of cobicistat (Part 2)

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 26 participants
Allocation: Randomized
Intervention Model: Crossover Assignment
Intervention Model Description: Part1: Open label, one treatment Part 2: Open-label, randomized, single-dose, 3-way cross-over study
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: An Open-label, Two-part Study to Determine the Absolute Bioavailability (BA) of OZ439 Using Simultaneous Intravenous [14C]-OZ439 Microdose/800mg Oral Dosing and to Investigate the Pharmacokinetics (PK) of OZ439 Granules Administered as Single Doses Suspended in Different Volumes and When Co-administered With a Single Dose of Cobicistat, a Strong CYP3A4 Inhibitor, to Healthy Subjects in Fasted State
Actual Study Start Date : February 28, 2017
Actual Primary Completion Date : May 30, 2017
Actual Study Completion Date : May 30, 2017

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Malaria
Drug Information available for: Cobicistat

Arm Intervention/treatment
Experimental: Part 1, single arm

This was an open-label study in 8 healthy subjects to determine the absolute bioavailability of OZ439 following a single oral dose of OZ439 and co-administration of a single iv infusion of a [14C]-OZ439 radiolabeled microdose at the anticipated Tmax of the oral dose. Subjects received the following treatment:

Treatment A: A single oral dose of 800 mg OZ439 simple granules administered as a 100-mL dispersion followed by a 15-minute 10-mL iv infusion of 100 μg [14C]-OZ439 (47 kBq [1.27 μCi]) beginning 3 hours after the oral dose administration.

Drug: Single oral dose of 800 mg OZ439
Single oral dose of 800 mg OZ439

Drug: iv infusion of [14C]-OZ439
15-minute 10-mL iv infusion of 100 μg [14C]-OZ439

Experimental: Part 2, Treatment B: single oral dose of 800 mg OZ439
This was an open-label, randomized, single-dose, 3-way cross-over study in 18 healthy subjects. Each subject participated in 3 treatment periods and each subject received a single dose of each of the following 3 treatments in a randomized order with a 14-day wash-out period between each treatment: Treatment B: A single oral dose of 800 mg OZ439 simple granules administered as a 64.5-mL dispersion Treatment C: A single oral dose of 400 mg OZ439 simple granules administered as a 64.5-mL dispersion Treatment D: A single oral dose of 400 mg OZ439 simple granules administered as a 64.5-mL dispersion and co-administered with a 150 mg cobicistat tablet (CYP3A4 inhibitor)
Drug: Single oral dose of 800 mg OZ439
Single oral dose of 800 mg OZ439

Experimental: Part 2, Treatment C: single oral dose of 400 mg OZ439
This was an open-label, randomized, single-dose, 3-way cross-over study in 18 healthy subjects. Each subject participated in 3 treatment periods and each subject received a single dose of each of the following 3 treatments in a randomized order with a 14-day wash-out period between each treatment: Treatment B: A single oral dose of 800 mg OZ439 simple granules administered as a 64.5-mL dispersion Treatment C: A single oral dose of 400 mg OZ439 simple granules administered as a 64.5-mL dispersion Treatment D: A single oral dose of 400 mg OZ439 simple granules administered as a 64.5-mL dispersion and co-administered with a 150 mg cobicistat tablet (CYP3A4 inhibitor)
Drug: Single oral dose of 400 mg OZ439
Single oral dose of 400 mg OZ439

Experimental: Part 2, Treatment D:single oral dose 400 mg OZ439+cobicistat
This was an open-label, randomized, single-dose, 3-way cross-over study in 18 healthy subjects. Each subject participated in 3 treatment periods and each subject received a single dose of each of the following 3 treatments in a randomized order with a 14-day wash-out period between each treatment: Treatment B: A single oral dose of 800 mg OZ439 simple granules administered as a 64.5-mL dispersion Treatment C: A single oral dose of 400 mg OZ439 simple granules administered as a 64.5-mL dispersion Treatment D: A single oral dose of 400 mg OZ439 simple granules administered as a 64.5-mL dispersion and co-administered with a 150 mg cobicistat tablet (CYP3A4 inhibitor)
Drug: Single oral dose of 400 mg OZ439
Single oral dose of 400 mg OZ439

Drug: Single oral dose of cobicistat
Single oral dose of 150 mg cobicistat




Primary Outcome Measures :
  1. OZ439 Fpo [ Time Frame: OZ439: Pre-dose, 0.25, 0.5, 0.75, 1, 2, 3, 4, 5, 6, 8, 12, 16, 24, 48, 72, 96, 168 hours post-dose. [14C]-OZ439: 10, 15, 20, 30 and 45 minutes after start of iv infusion then 3, 4, 5, 6, 8, 12, 16, 24, 48, 72, 96, 168 hours ]
    OZ439 Absolute oral bioavailability

  2. OZ439 Cmax [ Time Frame: Pre-dose, 0.5, 0.75, 1, 2, 3, 4, 5, 6, 8, 12, 16, 24, 48, 72, 96, 168, 216, 264, 312 hours post-dose ]
    OZ439 maximum concentration observed

  3. OZ439 C168h [ Time Frame: 168 hours post-dose ]
    OZ439 concentration observed at 168h

  4. OZ439 AUC0-168h [ Time Frame: Pre-dose, 0.5, 0.75, 1, 2, 3, 4, 5, 6, 8, 12, 16, 24, 48, 72, 96, 168 hours post-dose ]
    Area under the OZ439 plasma concentration time curve from time zero to 168h

  5. OZ439 AUC0-inf [ Time Frame: Pre-dose, 0.5, 0.75, 1, 2, 3, 4, 5, 6, 8, 12, 16, 24, 48, 72, 96, 168, 216, 264, 312 hours post-dose ]
    Area under the OZ439 plasma concentration time curve from time zero to infinity



Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


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

Inclusion Criteria:

  • Body mass index (BMI) : 18.0-30.0 kg/m2, inclusive, at screening
  • Weight : >50 kg, at screening
  • Status : healthy subjects
  • Female subjects must be of non-childbearing potential (either surgically sterilized or physiologically incapable of becoming pregnant, or post-menopausal [defined as spontaneous amenorrhoea for at least 1 year or spontaneous amenorrhoea for at least 6 months confirmed by a follicle stimulating hormone (FSH) result indicating a post-menopausal status]) and have a negative pregnancy test at screening and at (each) admission to the clinical research center. As all female subjects must be of non-childbearing potential, they are not required to use any contraception during this study.
  • Male subjects must use adequate contraception and not donate sperm from (first) admission to the clinical research center until 90 days after the follow-up visit. Adequate contraception for the male subject (and his female partner) is defined as surgical sterilization (vasectomy), using hormonal contraceptives (implantable, patch, oral, injectable) or an intrauterine device or system combined with at least 1 of the following forms of contraception (barrier method): a diaphragm or cervical cap, or a condom. Also, total abstinence, in accordance with the lifestyle of the subject is acceptable.
  • Must have QTcF ≤450 ms and QTcB ≤450 ms (male subjects); QTcF ≤470 ms and QTcB ≤470 ms (female subjects), and PR-interval ≤200 ms for screening, and Day -1 and pre-dose ECG measurements of the (first) treatment period
  • Ability and willingness to abstain from alcohol and methylxanthine-containing beverages or food (coffee, tea, cola, chocolate, energy drinks) from 48 hours prior to (each) admission to the clinical research center
  • Willing and able to communicate and participate in the whole study
  • Willing and able to sign the ICF

Exclusion Criteria:

  • A subject who meets any of the following exclusion criteria will not be eligible for inclusion in the study:
  • Male subjects who have currently pregnant partners or who have partners planning to be pregnant in the 90 days after discharge
  • Evidence or history of clinically significant oncological, pulmonary, chronic respiratory, hepatic, cardiovascular, hematological, metabolic, neurological, immunological, nephrological, endocrine or psychiatric disease, or current infection
  • Clinically relevant (as decided by the Principal Investigator [PI]) abnormalities in the 12-lead ECG, including asymptomatic bundle branch block
  • Family history of sudden death or of congenital prolongation of the QTc-interval or known congenital prolongation of the QTc-interval or any clinical condition known to prolong the QTc-interval
  • History of symptomatic cardiac arrhythmias or with clinically relevant bradycardia, heart rate ≤39 beats per minute (bpm)
  • Electrolyte disturbances, particularly hypokalemia, hypocalcemia or hypomagnesemia
  • Any condition that could possibly affect drug absorption, e.g. gastrectomy or diarrhea
  • History of post-antibiotic colitis
  • History of any drug or alcohol abuse in the past 2 years prior to screening
  • Subjects who regularly smoke more than 5 cigarettes a day
  • Receipt of an investigational drug or participation in another clinical research study within 90 days prior to the first dose of study drug
  • Subjects who are PRA employees, or immediate family members of PRA or Sponsor employees
  • Subjects who have previously been enrolled in this study
  • Use of moderate/strong inhibitors or inducers of CYP cytochromes or transporters within 30 days or 5 half-lives (whichever is longer) prior to the first dose of study drug
  • Consumption of grapefruit, grapefruit juice or grapefruit-related citrus fruits (e.g. Seville oranges, pomelos) within 14 days prior to the first dose of study drug
  • Use of prescription or non-prescription drugs and dietary supplements within 7 days or 5 half-lives (whichever is longer) prior to the first dose of study drug. With the exception of paracetamol (which may be used incidentally or for a short-term treatment at a maximum dose of 2 g per day) and hormone replacement therapy
  • Use of herbal supplements within 30 days prior to the first dose of study drug
  • Positive hepatitis B surface antigen (HBsAg), hepatitis C virus (HCV) antibody or HIV-1 or HIV-2 antibody results
  • Clinically significant abnormal biochemistry, hematology or urinalysis as judged by the PI. In case of doubt the PI will discuss this with the medical monitor
  • Positive urine drug screen result at screening or admission to the clinical research center
  • Serious adverse reaction or serious hypersensitivity to any drug or the formulation excipients
  • Presence or history of allergy requiring treatment. Hayfever is allowed unless it is active
  • Donation or loss of >100 mL of blood within 90 days prior to drug administration
  • Regular alcohol consumption in males >21 units per week and females >14 units per week (1 unit = 250 mL beer, 25 mL of 40% spirit or 125 mL of wine)
  • Subjects who do not have suitable veins for multiple venepunctures/cannulation as assessed by the PI or delegate at screening
  • Failure to satisfy the PI of fitness to participate for any other reason

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04069221


Locations
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Netherlands
PRA Health Sciences (PRA) - Early Development Services (EDS)
Groningen, Netherlands, 9728
Sponsors and Collaborators
Medicines for Malaria Venture
  Study Documents (Full-Text)

Documents provided by Medicines for Malaria Venture:
Study Protocol  [PDF] January 26, 2017
Statistical Analysis Plan  [PDF] June 14, 2017

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Responsible Party: Medicines for Malaria Venture
ClinicalTrials.gov Identifier: NCT04069221    
Other Study ID Numbers: MMV_OZ439_16_01
First Posted: August 28, 2019    Key Record Dates
Results First Posted: November 26, 2019
Last Update Posted: November 26, 2019
Last Verified: November 2019

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
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Malaria
Protozoan Infections
Parasitic Diseases
Cobicistat
Anti-HIV Agents
Anti-Retroviral Agents
Antiviral Agents
Anti-Infective Agents
Cytochrome P-450 CYP3A Inhibitors
Cytochrome P-450 Enzyme Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action