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Study of SHP620 (Maribavir) in Healthy Adults

Primary Purpose

Cytomegalovirus (CMV)

Status
Completed
Phase
Phase 1
Locations
United States
Study Type
Interventional
Intervention
Digoxin
Maribavir
Dextromethorphan
Sponsored by
Shire
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional basic science trial for Cytomegalovirus (CMV) focused on measuring Maribavir

Eligibility Criteria

18 Years - 50 Years (Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  • An understanding, ability, and willingness to fully comply with study procedures and restrictions.
  • Ability to provide written, personally signed, and dated informed consent to participate in the study, before completing any study-related procedures.
  • Age 18-50 years, inclusive at the time of consent.
  • Subjects must be willing to consent to and provide blood samples for pharmacogenomics analysis.
  • Willingness to comply with any applicable contraceptive requirements of the protocol and is:

    1. Male, or
    2. Female of non-childbearing potential
    3. Non-pregnant, non-lactating female
    4. Females must be at least 90 days postpartum or nulliparous.
  • Must be considered "healthy." Healthy status is defined by absence of evidence of any active or chronic disease following a detailed medical and surgical history, a complete physical examination including vital signs, 12-lead ECG, hematology, blood chemistry (includes T3, T4, and TSH at screening only), and urinalysis.
  • Body mass index (BMI) between 18.5 and 30.0 kg/m2 inclusive.
  • Hemoglobin is equal to or greater than 12.0g/dL.
  • Ability to swallow a dose of investigational product (which may be multiple tablets at one time or consecutively 1 tablet at a time)

Exclusion Criteria:

  • Subject has a clinically significant history or a disorder detected during the medical interview/physical examination such as any cardiovascular, broncho-pulmonary, gastrointestinal (eg, inflammatory bowel disease, chronic diarrhea), hepatic, biliary (including gallbladder removal), renal, hematological, endocrine, autoimmune, neurological, or psychiatric disease (including depression) or any other medical condition that is capable of altering the absorption, metabolism, or elimination of drugs; or of constituting a risk factor when taking the investigational product in the judgment of the investigator.
  • Known or suspected intolerance or hypersensitivity to the investigational product(s), closely related compounds, or any of the stated ingredients.
  • Significant illness, as judged by the investigator, within 2 weeks of the first dose of investigational product.
  • Known history of alcohol or other substance abuse within the last year.
  • Donation of blood or blood products (eg, plasma or platelets) within 60 days prior to receiving the first dose of investigational product.
  • Within 30 days prior to the first dose of investigational product:

    1. Have used an investigational product (if elimination half-life is <6 days, otherwise 5 half-lives).
    2. Have been enrolled in a clinical study (including vaccine studies) that, in the investigator's opinion, may impact this study.
    3. Have had any substantial changes in eating habits, as assessed by the investigator.
  • Confirmed systolic blood pressure >139 mmHg or <89 mmHg and diastolic blood pressure >89 mmHg or <49 mmHg.
  • Twelve-lead ECG demonstrating QTcB >450 msec at screening.
  • A positive screen for alcohol or drugs of abuse at screening or Day -1, Period 1.
  • Male subjects who consume more than 21 units of alcohol per week or 3 units per day; female subjects who consume more than 14 units of alcohol per week or 2 units per day (1 alcohol unit=1 beer or 1 wine [5 oz/150 mL] or 1 liquor [1.5 oz/40 mL] or 0.75 oz alcohol).
  • A positive human immunodeficiency virus, hepatitis B surface antibody, or hepatitis C virus antibody screen.
  • Use of tobacco in any form (eg, smoking or chewing) or other nicotine-containing products in any form (eg, gum, patch). Ex-users must report that they have stopped using tobacco for at least 30 days prior to receiving the first dose of investigational product.
  • Routine consumption of more than 2 units of caffeine per day or subjects who experience caffeine withdrawal headaches. (One caffeine unit is contained in the following items: one 6 oz [180 mL] cup of coffee, two 12 oz [360 mL] cans of cola, one 12 oz cup of tea, or three 1 oz [85 g] chocolate bars. Decaffeinated coffee, tea, or cola are not considered to contain caffeine.)
  • Prior screen failure, randomization, participation, or enrollment in this study or prior enrollment in a clinical study investigating maribavir.
  • Current use (defined as use within 14 days prior to the first dose of investigational product) of any medication (including over-the-counter, herbal, or homeopathic preparations [eg, St. John's wort, ginkgo biloba]) with the exception of hormonal replacement therapy and occasional use of ibuprofen and acetaminophen.
  • History of sensitivity to heparin or heparin-induced thrombocytopenia.
  • Ingestion of known CYP3A modulators within 7 days of Day 1, Period 1 (includes grapefruit or grapefruit juice, oranges, Seville oranges, apples or apple juice, vegetables from the mustard green family [eg, kale, broccoli, watercress, collard greens, kohlrabi, Brussels sprouts, mustard], charbroiled meats, and products containing these ingredients).

Sites / Locations

  • Clinical Pharmacology of Miami, Inc.

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm Type

Active Comparator

Experimental

Active Comparator

Arm Label

Digoxin

Maribavir

Dextromethorphan

Arm Description

On Day 1, subjects will receive a single 0.5 mg (2 x 0.25 mg) oral dose of digoxin.

On Day 8 through Day 15, subjects will receive a 400 mg (2 x 200 mg) BID oral dose of maribavir. Subjects will be given the second dose of maribavir approximately 12 hours after the first dose. On Day 13, subjects will receive a coadministration of a single 0.5 mg (2 x 0.25 mg) oral dose of digoxin and a single 30 mg oral dose of dextromethorphan given with the morning dose of maribavir.

On Day 1, subjects will receive a single 30 mg oral dose of dextromethorphan.

Outcomes

Primary Outcome Measures

Maximum Observed Plasma Concentration (Cmax) of Digoxin
Cmax is the maximum observed plasma concentration of digoxin.
Maximum Observed Plasma Concentration (Cmax) of Dextromethorphan
Cmax is the maximum observed plasma concentration of dextromethorphan.
Maximum Observed Plasma Concentration (Cmax) of Dextrorphan
Cmax is the maximum observed plasma concentration of dextrorphan, the metabolite of dextromethorphan.
Maximum Observed Plasma Concentration (Cmax) of Maribavir
Cmax is the maximum observed plasma concentration of maribavir.
Time to Reach Maximum Plasma Concentration (Tmax) of Digoxin
Tmax is the time to reach the maximum observed drug concentration in plasma during a dosing interval.
Time to Reach Maximum Plasma Concentration (Tmax) of Dextromethorphan
Tmax is the time to reach the maximum observed drug concentration in plasma during a dosing interval.
Time to Reach Maximum Plasma Concentration (Tmax) of Dextrorphan
Tmax is the time to reach the maximum observed drug concentration in plasma during a dosing interval.
Time to Reach Maximum Plasma Concentration (Tmax) of Maribavir
Tmax is the time to reach the maximum observed drug concentration in plasma during a dosing interval.
Area Under the Plasma Concentration Versus Time Curve Extrapolated to Infinity (AUC0-infinity) of Digoxin
AUC0-infinity is the area under the plasma concentration versus time curve extrapolated to infinity, calculated using the observed value of the last non-zero concentration.
Area Under the Plasma Concentration Versus Time Curve Extrapolated to Infinity (AUC0-infinity) of Dextromethorphan
AUC0-infinity is the area under the plasma concentration versus time curve extrapolated to infinity, calculated using the observed value of the last non-zero concentration.
Area Under the Plasma Concentration Versus Time Curve Extrapolated to Infinity (AUC0-infinity) of Dextrorphan
AUC0-infinity is the area under the plasma concentration versus time curve extrapolated to infinity, calculated using the observed value of the last non-zero concentration.
Area Under the Plasma Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUClast) of Digoxin
AUClast is the area under the plasma concentration versus time curve from the time of dosing to the last measurable concentration.
Area Under the Plasma Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUClast) of Dextromethorphan
AUClast is the area under the plasma concentration versus time curve from the time of dosing to the last measurable concentration.
Area Under the Plasma Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUClast) of Dextrorphan
AUClast is the area under the plasma concentration versus time curve from the time of dosing to the last measurable concentration.
Parent/Metabolite Ratio of Area Under the Plasma Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUClast) for Dextromethorphan Over AUClast for Dextrorphan (AUClast Parent/Metabolite Ratio)
AUClast parent/metabolite ratio is the ratio of AUClast for dextromethorphan over AUClast for dextrorphan.
Parent/Metabolite Ratio of Area Under the Plasma Concentration Versus Time Curve Extrapolated to Infinity (AUC0-infinity) for Dextromethorphan Over AUC0-infinity for Dextrorphan (AUC0-infinity Parent/Metabolite Ratio)
AUC0-infinity parent/metabolite ratio is the ratio of AUC0-infinity for dextromethorphan over AUC0-infinity for dextrorphan.
Area Under the Plasma Concentration Versus Time Curve From Time Zero to the End of the Dosing Interval at Steady-State (AUCtau) of Maribavir
AUCtau is the area under the plasma concentration versus time curve from the time zero to the end of the dosing interval at steady-state.
First-order Rate Constant (Lambda z) Associated With the Terminal (Log-linear) Portion of the Curve of Digoxin
Lambda z is the first-order rate constant associated with the terminal (log-linear) portion of the plasma concentration versus time curve, determined as the negative slope of the terminal log-linear phase of the curve.
First-order Rate Constant (Lambda z) Associated With the Terminal (Log-linear) Portion of the Curve of Dextromethorphan
Lambda z is the first-order rate constant associated with the terminal (log-linear) portion of the plasma concentration versus time curve, determined as the negative slope of the terminal log-linear phase of the curve.
First-order Rate Constant (Lambda z) Associated With the Terminal (Log-linear) Portion of the Curve of Dextrorphan
Lambda z is the first-order rate constant associated with the terminal (log-linear) portion of the plasma concentration versus time curve, determined as the negative slope of the terminal log-linear phase of the curve.
Terminal Half-life (t1/2) of Digoxin
Terminal half-life (t1/2) is the time in hours required for the concentration of the drug to reach half of its original value.
Terminal Half-life (t1/2) of Dextromethorphan
Terminal half-life (t1/2) is the time in hours required for the concentration of the drug to reach half of its original value.
Terminal Half-life (t1/2) of Dextrorphan
Terminal half-life (t1/2) is the time in hours required for the concentration of the drug to reach half of its original value.
Terminal Half-life (t1/2) of Maribavir
Terminal half-life (t1/2) is the time in hours required for the concentration of the drug to reach half of its original value.
Apparent Oral Clearance (CL/F) of Digoxin
CL/F is equal to dose/AUC0-infinity (dose divided by area under the plasma concentration versus time curve extrapolated to infinity [AUC0-infinity]).
Apparent Oral Clearance (CL/F) of Dextromethorphan
CL/F is equal to dose/AUC0-infinity (dose divided by area under the plasma concentration versus time curve extrapolated to infinity [AUC0-infinity])
Apparent Oral Clearance (CL/F) of Maribavir
CL/F is equal to dose/AUCtau (dose divided by area under the curve from time 0 to the end of the dosing interval at steady state [AUCtau])
Concentration at the End of Dosing Interval (Ctau) of Maribavir
Ctau is the concentration of maribavir at the end of the dosing interval.
Volume of Distribution Divided by the Fraction of Dose Absorbed (Vz/F) of Digoxin
Vz/F is the volume of distribution associated with the terminal slope following extravascular administration divided by the fraction of dose absorbed.
Volume of Distribution Divided by the Fraction of Dose Absorbed (Vz/F) of Dextromethorphan
Vz/F is the volume of distribution associated with the terminal slope following extravascular administration divided by the fraction of dose absorbed.
Pre-dose Concentration (C0) of Maribavir
C0 is the lowest concentration reached by a drug before the next dose is administered.

Secondary Outcome Measures

Number of Participants With Study-related Adverse Events (AEs), Serious Adverse Events (SAEs) and Treatment-emergent Adverse Events (TEAEs)
An AE was any untoward medical occurrence in a participant administered an investigational product (IP) and that did not necessarily have a causal relationship with this treatment. AE was considered to be study-related if there was any valid reason, even if undetermined or untested, for suspecting a possible cause-and-effect relationship between the IP and the occurrence of the AE. An AE was considered a TEAE if it had a start date on or after the first dose of IP or if it had a start date before the date of the first dose of IP, but increased in intensity on or after the date of the first dose of IP. A serious adverse event (SAE) was any untoward medical occurrence (related either to the test product or to the other IP or not) that at any dose resulted in death; was life-threatening; required or prolongation of hospitalization; resulted in persistent or significant disability/incapacity; was a congenital abnormality/birth defect; was an important medical event.
Number of Participants With Clinically Significant Changes Reported as TEAE in Physical Examination, Vital Signs, 12-lead ECGs, Hematology, Blood Chemistry and Urinalysis
Clinical significance of the changes observed in the safety parameters to be reported as TEAE was interpreted by the investigator.

Full Information

First Posted
April 20, 2016
Last Updated
May 13, 2021
Sponsor
Shire
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1. Study Identification

Unique Protocol Identification Number
NCT02775240
Brief Title
Study of SHP620 (Maribavir) in Healthy Adults
Official Title
A Phase 1, Open-label, 2-period Fixed-sequence Study to Evaluate the Effect of Multiple Doses of SHP620 (Maribavir) on the Pharmacokinetics of Digoxin and Dextromethorphan in Healthy Adult Subjects
Study Type
Interventional

2. Study Status

Record Verification Date
May 2021
Overall Recruitment Status
Completed
Study Start Date
July 21, 2016 (Actual)
Primary Completion Date
September 12, 2016 (Actual)
Study Completion Date
September 12, 2016 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Shire

4. Oversight

5. Study Description

Brief Summary
The purpose of this study is to determine how an investigational treatment (maribavir) is handled by the body when administered with two already approved drugs (digoxin and dextromethorphan). The study will also look at the safety and tolerability when maribavir is coadministered with digoxin and dextromethorphan versus digoxin and dextromethorphan alone.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Cytomegalovirus (CMV)
Keywords
Maribavir

7. Study Design

Primary Purpose
Basic Science
Study Phase
Phase 1
Interventional Study Model
Parallel Assignment
Masking
None (Open Label)
Allocation
Non-Randomized
Enrollment
18 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Digoxin
Arm Type
Active Comparator
Arm Description
On Day 1, subjects will receive a single 0.5 mg (2 x 0.25 mg) oral dose of digoxin.
Arm Title
Maribavir
Arm Type
Experimental
Arm Description
On Day 8 through Day 15, subjects will receive a 400 mg (2 x 200 mg) BID oral dose of maribavir. Subjects will be given the second dose of maribavir approximately 12 hours after the first dose. On Day 13, subjects will receive a coadministration of a single 0.5 mg (2 x 0.25 mg) oral dose of digoxin and a single 30 mg oral dose of dextromethorphan given with the morning dose of maribavir.
Arm Title
Dextromethorphan
Arm Type
Active Comparator
Arm Description
On Day 1, subjects will receive a single 30 mg oral dose of dextromethorphan.
Intervention Type
Drug
Intervention Name(s)
Digoxin
Intervention Description
0.5 mg (2 x 0.25 mg) Digoxin oral dose
Intervention Type
Drug
Intervention Name(s)
Maribavir
Intervention Description
200mg twice a day for 8 days
Intervention Type
Drug
Intervention Name(s)
Dextromethorphan
Intervention Description
30 mg oral dose
Primary Outcome Measure Information:
Title
Maximum Observed Plasma Concentration (Cmax) of Digoxin
Description
Cmax is the maximum observed plasma concentration of digoxin.
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
Maximum Observed Plasma Concentration (Cmax) of Dextromethorphan
Description
Cmax is the maximum observed plasma concentration of dextromethorphan.
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
Maximum Observed Plasma Concentration (Cmax) of Dextrorphan
Description
Cmax is the maximum observed plasma concentration of dextrorphan, the metabolite of dextromethorphan.
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
Maximum Observed Plasma Concentration (Cmax) of Maribavir
Description
Cmax is the maximum observed plasma concentration of maribavir.
Time Frame
Pre-dose, 0.25,0.5,1,1.5,2,3,4,5,6,8,12 hours post-dose on Day 13
Title
Time to Reach Maximum Plasma Concentration (Tmax) of Digoxin
Description
Tmax is the time to reach the maximum observed drug concentration in plasma during a dosing interval.
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
Time to Reach Maximum Plasma Concentration (Tmax) of Dextromethorphan
Description
Tmax is the time to reach the maximum observed drug concentration in plasma during a dosing interval.
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
Time to Reach Maximum Plasma Concentration (Tmax) of Dextrorphan
Description
Tmax is the time to reach the maximum observed drug concentration in plasma during a dosing interval.
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
Time to Reach Maximum Plasma Concentration (Tmax) of Maribavir
Description
Tmax is the time to reach the maximum observed drug concentration in plasma during a dosing interval.
Time Frame
Pre-dose, 0.25,0.5,1,1.5,2,3,4,5,6,8,12 hours post-dose on Day 13
Title
Area Under the Plasma Concentration Versus Time Curve Extrapolated to Infinity (AUC0-infinity) of Digoxin
Description
AUC0-infinity is the area under the plasma concentration versus time curve extrapolated to infinity, calculated using the observed value of the last non-zero concentration.
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
Area Under the Plasma Concentration Versus Time Curve Extrapolated to Infinity (AUC0-infinity) of Dextromethorphan
Description
AUC0-infinity is the area under the plasma concentration versus time curve extrapolated to infinity, calculated using the observed value of the last non-zero concentration.
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
Area Under the Plasma Concentration Versus Time Curve Extrapolated to Infinity (AUC0-infinity) of Dextrorphan
Description
AUC0-infinity is the area under the plasma concentration versus time curve extrapolated to infinity, calculated using the observed value of the last non-zero concentration.
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
Area Under the Plasma Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUClast) of Digoxin
Description
AUClast is the area under the plasma concentration versus time curve from the time of dosing to the last measurable concentration.
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
Area Under the Plasma Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUClast) of Dextromethorphan
Description
AUClast is the area under the plasma concentration versus time curve from the time of dosing to the last measurable concentration.
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
Area Under the Plasma Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUClast) of Dextrorphan
Description
AUClast is the area under the plasma concentration versus time curve from the time of dosing to the last measurable concentration.
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
Parent/Metabolite Ratio of Area Under the Plasma Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUClast) for Dextromethorphan Over AUClast for Dextrorphan (AUClast Parent/Metabolite Ratio)
Description
AUClast parent/metabolite ratio is the ratio of AUClast for dextromethorphan over AUClast for dextrorphan.
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
Parent/Metabolite Ratio of Area Under the Plasma Concentration Versus Time Curve Extrapolated to Infinity (AUC0-infinity) for Dextromethorphan Over AUC0-infinity for Dextrorphan (AUC0-infinity Parent/Metabolite Ratio)
Description
AUC0-infinity parent/metabolite ratio is the ratio of AUC0-infinity for dextromethorphan over AUC0-infinity for dextrorphan.
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
Area Under the Plasma Concentration Versus Time Curve From Time Zero to the End of the Dosing Interval at Steady-State (AUCtau) of Maribavir
Description
AUCtau is the area under the plasma concentration versus time curve from the time zero to the end of the dosing interval at steady-state.
Time Frame
Pre-dose, 0.25,0.5,1,1.5,2,3,4,5,6,8,12 hours post-dose on Day 13
Title
First-order Rate Constant (Lambda z) Associated With the Terminal (Log-linear) Portion of the Curve of Digoxin
Description
Lambda z is the first-order rate constant associated with the terminal (log-linear) portion of the plasma concentration versus time curve, determined as the negative slope of the terminal log-linear phase of the curve.
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
First-order Rate Constant (Lambda z) Associated With the Terminal (Log-linear) Portion of the Curve of Dextromethorphan
Description
Lambda z is the first-order rate constant associated with the terminal (log-linear) portion of the plasma concentration versus time curve, determined as the negative slope of the terminal log-linear phase of the curve.
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
First-order Rate Constant (Lambda z) Associated With the Terminal (Log-linear) Portion of the Curve of Dextrorphan
Description
Lambda z is the first-order rate constant associated with the terminal (log-linear) portion of the plasma concentration versus time curve, determined as the negative slope of the terminal log-linear phase of the curve.
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
Terminal Half-life (t1/2) of Digoxin
Description
Terminal half-life (t1/2) is the time in hours required for the concentration of the drug to reach half of its original value.
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
Terminal Half-life (t1/2) of Dextromethorphan
Description
Terminal half-life (t1/2) is the time in hours required for the concentration of the drug to reach half of its original value.
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
Terminal Half-life (t1/2) of Dextrorphan
Description
Terminal half-life (t1/2) is the time in hours required for the concentration of the drug to reach half of its original value.
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
Terminal Half-life (t1/2) of Maribavir
Description
Terminal half-life (t1/2) is the time in hours required for the concentration of the drug to reach half of its original value.
Time Frame
Pre-dose, 0.25,0.5,1,1.5,2,3,4,5,6,8,12 hours post-dose on Day 13
Title
Apparent Oral Clearance (CL/F) of Digoxin
Description
CL/F is equal to dose/AUC0-infinity (dose divided by area under the plasma concentration versus time curve extrapolated to infinity [AUC0-infinity]).
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
Apparent Oral Clearance (CL/F) of Dextromethorphan
Description
CL/F is equal to dose/AUC0-infinity (dose divided by area under the plasma concentration versus time curve extrapolated to infinity [AUC0-infinity])
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
Apparent Oral Clearance (CL/F) of Maribavir
Description
CL/F is equal to dose/AUCtau (dose divided by area under the curve from time 0 to the end of the dosing interval at steady state [AUCtau])
Time Frame
Pre-dose, 0.25,0.5,1,1.5,2,3,4,5,6,8,12 hours post-dose on Day 13
Title
Concentration at the End of Dosing Interval (Ctau) of Maribavir
Description
Ctau is the concentration of maribavir at the end of the dosing interval.
Time Frame
Pre-dose, 0.25,0.5,1,1.5,2,3,4,5,6,8,12 hours post-dose on Day 13
Title
Volume of Distribution Divided by the Fraction of Dose Absorbed (Vz/F) of Digoxin
Description
Vz/F is the volume of distribution associated with the terminal slope following extravascular administration divided by the fraction of dose absorbed.
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
Volume of Distribution Divided by the Fraction of Dose Absorbed (Vz/F) of Dextromethorphan
Description
Vz/F is the volume of distribution associated with the terminal slope following extravascular administration divided by the fraction of dose absorbed.
Time Frame
Pre-dose,0.25,0.5,1,1.5,2,3,4,5,6,8,12,24,48,72 hours post-dose on Day 1 for Treatment A and Day 13 for Treatment B
Title
Pre-dose Concentration (C0) of Maribavir
Description
C0 is the lowest concentration reached by a drug before the next dose is administered.
Time Frame
Pre-dose on Day 13
Secondary Outcome Measure Information:
Title
Number of Participants With Study-related Adverse Events (AEs), Serious Adverse Events (SAEs) and Treatment-emergent Adverse Events (TEAEs)
Description
An AE was any untoward medical occurrence in a participant administered an investigational product (IP) and that did not necessarily have a causal relationship with this treatment. AE was considered to be study-related if there was any valid reason, even if undetermined or untested, for suspecting a possible cause-and-effect relationship between the IP and the occurrence of the AE. An AE was considered a TEAE if it had a start date on or after the first dose of IP or if it had a start date before the date of the first dose of IP, but increased in intensity on or after the date of the first dose of IP. A serious adverse event (SAE) was any untoward medical occurrence (related either to the test product or to the other IP or not) that at any dose resulted in death; was life-threatening; required or prolongation of hospitalization; resulted in persistent or significant disability/incapacity; was a congenital abnormality/birth defect; was an important medical event.
Time Frame
From start of study drug administration up to follow-up (up to 25 days)
Title
Number of Participants With Clinically Significant Changes Reported as TEAE in Physical Examination, Vital Signs, 12-lead ECGs, Hematology, Blood Chemistry and Urinalysis
Description
Clinical significance of the changes observed in the safety parameters to be reported as TEAE was interpreted by the investigator.
Time Frame
Baseline up to Day 16

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
50 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: An understanding, ability, and willingness to fully comply with study procedures and restrictions. Ability to provide written, personally signed, and dated informed consent to participate in the study, before completing any study-related procedures. Age 18-50 years, inclusive at the time of consent. Subjects must be willing to consent to and provide blood samples for pharmacogenomics analysis. Willingness to comply with any applicable contraceptive requirements of the protocol and is: Male, or Female of non-childbearing potential Non-pregnant, non-lactating female Females must be at least 90 days postpartum or nulliparous. Must be considered "healthy." Healthy status is defined by absence of evidence of any active or chronic disease following a detailed medical and surgical history, a complete physical examination including vital signs, 12-lead ECG, hematology, blood chemistry (includes T3, T4, and TSH at screening only), and urinalysis. Body mass index (BMI) between 18.5 and 30.0 kg/m2 inclusive. Hemoglobin is equal to or greater than 12.0g/dL. Ability to swallow a dose of investigational product (which may be multiple tablets at one time or consecutively 1 tablet at a time) Exclusion Criteria: Subject has a clinically significant history or a disorder detected during the medical interview/physical examination such as any cardiovascular, broncho-pulmonary, gastrointestinal (eg, inflammatory bowel disease, chronic diarrhea), hepatic, biliary (including gallbladder removal), renal, hematological, endocrine, autoimmune, neurological, or psychiatric disease (including depression) or any other medical condition that is capable of altering the absorption, metabolism, or elimination of drugs; or of constituting a risk factor when taking the investigational product in the judgment of the investigator. Known or suspected intolerance or hypersensitivity to the investigational product(s), closely related compounds, or any of the stated ingredients. Significant illness, as judged by the investigator, within 2 weeks of the first dose of investigational product. Known history of alcohol or other substance abuse within the last year. Donation of blood or blood products (eg, plasma or platelets) within 60 days prior to receiving the first dose of investigational product. Within 30 days prior to the first dose of investigational product: Have used an investigational product (if elimination half-life is <6 days, otherwise 5 half-lives). Have been enrolled in a clinical study (including vaccine studies) that, in the investigator's opinion, may impact this study. Have had any substantial changes in eating habits, as assessed by the investigator. Confirmed systolic blood pressure >139 mmHg or <89 mmHg and diastolic blood pressure >89 mmHg or <49 mmHg. Twelve-lead ECG demonstrating QTcB >450 msec at screening. A positive screen for alcohol or drugs of abuse at screening or Day -1, Period 1. Male subjects who consume more than 21 units of alcohol per week or 3 units per day; female subjects who consume more than 14 units of alcohol per week or 2 units per day (1 alcohol unit=1 beer or 1 wine [5 oz/150 mL] or 1 liquor [1.5 oz/40 mL] or 0.75 oz alcohol). A positive human immunodeficiency virus, hepatitis B surface antibody, or hepatitis C virus antibody screen. Use of tobacco in any form (eg, smoking or chewing) or other nicotine-containing products in any form (eg, gum, patch). Ex-users must report that they have stopped using tobacco for at least 30 days prior to receiving the first dose of investigational product. Routine consumption of more than 2 units of caffeine per day or subjects who experience caffeine withdrawal headaches. (One caffeine unit is contained in the following items: one 6 oz [180 mL] cup of coffee, two 12 oz [360 mL] cans of cola, one 12 oz cup of tea, or three 1 oz [85 g] chocolate bars. Decaffeinated coffee, tea, or cola are not considered to contain caffeine.) Prior screen failure, randomization, participation, or enrollment in this study or prior enrollment in a clinical study investigating maribavir. Current use (defined as use within 14 days prior to the first dose of investigational product) of any medication (including over-the-counter, herbal, or homeopathic preparations [eg, St. John's wort, ginkgo biloba]) with the exception of hormonal replacement therapy and occasional use of ibuprofen and acetaminophen. History of sensitivity to heparin or heparin-induced thrombocytopenia. Ingestion of known CYP3A modulators within 7 days of Day 1, Period 1 (includes grapefruit or grapefruit juice, oranges, Seville oranges, apples or apple juice, vegetables from the mustard green family [eg, kale, broccoli, watercress, collard greens, kohlrabi, Brussels sprouts, mustard], charbroiled meats, and products containing these ingredients).
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Study Director
Organizational Affiliation
Takeda
Official's Role
Study Director
Facility Information:
Facility Name
Clinical Pharmacology of Miami, Inc.
City
Miami
State/Province
Florida
ZIP/Postal Code
33014
Country
United States

12. IPD Sharing Statement

Plan to Share IPD
Yes
IPD Sharing Plan Description
Takeda provides access to the de-identified individual participant data (IPD) for eligible studies to aid qualified researchers in addressing legitimate scientific objectives (Takeda's data sharing commitment is available on https://clinicaltrials.takeda.com/takedas-commitment?commitment=5). These IPDs will be provided in a secure research environment following approval of a data sharing request, and under the terms of a data sharing agreement.
IPD Sharing Access Criteria
IPD from eligible studies will be shared with qualified researchers according to the criteria and process described on https://vivli.org/ourmember/takeda/. For approved requests, the researchers will be provided access to anonymized data (to respect patient privacy in line with applicable laws and regulations) and with information necessary to address the research objectives under the terms of a data sharing agreement.
IPD Sharing URL
https://vivli.org/ourmember/takeda/
Citations:
PubMed Identifier
31385617
Citation
Song IH, Ilic K, Murphy J, Lasseter K, Martin P. Effects of Maribavir on P-Glycoprotein and CYP2D6 in Healthy Volunteers. J Clin Pharmacol. 2020 Jan;60(1):96-106. doi: 10.1002/jcph.1504. Epub 2019 Aug 6.
Results Reference
derived

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Study of SHP620 (Maribavir) in Healthy Adults

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