A Phase 1 Study of Novel GS-9973 Tablet Formulations to Evaluate the Effect of Acid Reducing Agents, Relative Bioavailability, and Food Effect on GS-9973 Pharmacokinetics

NCT ID: NCT01841489

Last Updated: 2014-02-07

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

56 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-05-31

Study Completion Date

2013-10-31

Brief Summary

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This is a Phase 1, Open-Label, Adaptive Study of Novel GS-9973 Tablet Formulations to Evaluate the Effect of Acid Reducing Agents, Relative Bioavailability, and Food Effect on GS-9973 Pharmacokinetics.

Detailed Description

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Conditions

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Chronic Lymphocytic Leukemia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Sequence 1

Group Type EXPERIMENTAL

Treatment A

Intervention Type DRUG

1600 mg GS-9973 (Formulation 1)

Treatment B

Intervention Type DRUG

1600 mg GS-9973 (Formulation 1) plus 20 mg omeprazole

Treatment G

Intervention Type DRUG

1600 mg GS-9973 (Reference formulation)

Treatment I

Intervention Type DRUG

An alternate dose of the chosen formulation from Part A up to 1200 mg administered twice-daily

Sequence 2

Group Type EXPERIMENTAL

Treatment A

Intervention Type DRUG

1600 mg GS-9973 (Formulation 1)

Treatment C

Intervention Type DRUG

1600 mg GS-9973 (Formulation 1) plus 40 mg famotidine

Treatment H

Intervention Type DRUG

1600 mg GS-9973 (Formulation 1 or Formulation 2, based on results from Part A)

Treatment J

Intervention Type DRUG

An alternate dose of the chosen formulation from Part A up to 1200 mg administered twice-daily

Sequence 3

Group Type EXPERIMENTAL

Treatment D

Intervention Type DRUG

1600 mg GS-9973 (Formulation 2)

Treatment E

Intervention Type DRUG

1600 mg GS-9973 (Formulation 2) plus 20 mg omeprazole

Treatment G

Intervention Type DRUG

1600 mg GS-9973 (Reference formulation)

Treatment I

Intervention Type DRUG

An alternate dose of the chosen formulation from Part A up to 1200 mg administered twice-daily

Sequence 4

Group Type EXPERIMENTAL

Treatment D

Intervention Type DRUG

1600 mg GS-9973 (Formulation 2)

Treatment F

Intervention Type DRUG

1600 mg GS-9973 (Formulation 2) plus 40 mg famotidine

Treatment H

Intervention Type DRUG

1600 mg GS-9973 (Formulation 1 or Formulation 2, based on results from Part A)

Treatment J

Intervention Type DRUG

An alternate dose of the chosen formulation from Part A up to 1200 mg administered twice-daily

Interventions

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Treatment A

1600 mg GS-9973 (Formulation 1)

Intervention Type DRUG

Treatment B

1600 mg GS-9973 (Formulation 1) plus 20 mg omeprazole

Intervention Type DRUG

Treatment C

1600 mg GS-9973 (Formulation 1) plus 40 mg famotidine

Intervention Type DRUG

Treatment D

1600 mg GS-9973 (Formulation 2)

Intervention Type DRUG

Treatment E

1600 mg GS-9973 (Formulation 2) plus 20 mg omeprazole

Intervention Type DRUG

Treatment F

1600 mg GS-9973 (Formulation 2) plus 40 mg famotidine

Intervention Type DRUG

Treatment G

1600 mg GS-9973 (Reference formulation)

Intervention Type DRUG

Treatment H

1600 mg GS-9973 (Formulation 1 or Formulation 2, based on results from Part A)

Intervention Type DRUG

Treatment I

An alternate dose of the chosen formulation from Part A up to 1200 mg administered twice-daily

Intervention Type DRUG

Treatment J

An alternate dose of the chosen formulation from Part A up to 1200 mg administered twice-daily

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Have the ability to understand and sign a written informed consent form, which must be obtained prior to initiation of study procedures
* Must have a body mass index (BMI) range of approximately 19 to 30 kg/m2
* Must have a minimum weight of 45 kg
* Females of childbearing potential must have negative serum pregnancy tests at screening and baseline and must practice at least 1 reliable method of contraception as defined by the protocol

* Female subjects who utilize hormonal contraceptive as 1 of their birth control methods must have used the same method for at least 3 months prior to study dosing
* Male subjects must agree to use condoms during heterosexual intercourse and avoid sperm donation from Day -1 until 90 days following the last dose of study medication
* Must refrain from blood donation throughout the study period
* Must, in the opinion of the Investigator, be in good general
* Must be a non- or light smoker, eg, less than 10 cigarettes per day

Exclusion Criteria

* Pregnant or lactating subjects
* Use of prescribed or over-the-counter medications that affect gastric pH
* History of severe peptic ulcer disease, GERD, or other diseases requiring prolonged(\>6 weeks) medication or surgical therapy to modify gastric pH
* Have a history of clinically significant cardiac abnormalities or presence of clinically significant abnormality on 12-lead ECG.
* Have a history of any cancer requiring systemic chemotherapy or radiation
* Have a history of bleeding disorders
* Have a history of liver disorders
* Current acute infection or history of acute infection within 7 days
* Have a recent history of alcohol or illicit drug abuse and/or have a positive test for selected drugs of abuse
* Have a positive hepatitis screen or positive Human Immunodeficiency Virus antibody test
* Have participated in another clinical trial within 28 days
* Have received transfusion of blood or plasma products within 6 months
* Have donated \> 500 mL blood within 56 days
* Are unable or unwilling to comply with study restrictions, return for follow-up appointments, or other considerations, which in the opinion of the Investigator, would make the candidate unsuitable for study participation
* Current or historical medical condition that is deemed to be of medical significance by the Investigator
* Have used prescription medications, over the counter products, herbal remedies and nutritional supplements within 7 days
Minimum Eligible Age

18 Years

Maximum Eligible Age

45 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Gilead Sciences

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Michael Hawkins, MD

Role: STUDY_DIRECTOR

Gilead Sciences

Locations

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Investigational Site

Daytona Beach, Florida, United States

Site Status

Countries

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United States

Other Identifiers

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GS-US-339-0111

Identifier Type: -

Identifier Source: org_study_id

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