A Study of Ipatasertib in Participants With Mild, Moderate or Severe Hepatic Impairment Compared to Healthy Participants

Study Overview
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Brief Summary
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This is a Phase 1 study evaluating the pharmacokinetics, tolerability and safety of a single dose of ipatasertib in participants with mild, moderate or severe hepatic impairment compared to healthy participants.

Official Title
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A Phase 1, Open-Label, Single-Dose Study to Evaluate the Pharmacokinetics and Safety of Ipatasertib in Subjects With Mild, Moderate or Severe Hepatic Impairment Compared to Healthy Subjects

Conditions
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Hepatic Insufficiency

Intervention / Treatment
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* Drug: Ipatasertib


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: In good health (except for specific inclusion criteria related to hepatic impairment), as determined by the Investigator, based on no clinically significant findings from medical history, physical examination, 12-lead electrocardiogram, and vital signs Females will not be pregnant or breastfeeding, and must be either postmenopausal or agree to use a study-approved method of contraception from the time of signing the informed consent until 30 days after discharge Males will either be sterile or agree to use male condom with spermicide from check-in (Day -1) until 90 days following the dose of study drug Additional Inclusion Criteria for Healthy Subjects Only: - Liver enzyme tests must be less than or equal to the upper limits of normal Additional Exclusion Criteria for Hepatic Impaired Subjects Only: - Hepatic impairment must have a Child-Pugh score of 5 to 6 (mild), 7 to 9 (moderate), or 10 to 15 (severe) and have stable hepatic insufficiency within 1 month prior to Screening Exclusion Criteria: History of ulcerative colitis or stomach or intestinal surgery or resection History of unstable diabetes mellitus History of alcoholism or drug addiction within 1 year prior to Check-in (Day -1) Use of oral, implantable, transdermal, or injectable contraceptives from the time of signing the informed consent (females only) or 10 days prior to Check-in through 45 days after the dose administration Poor peripheral venous access Receipt of blood products within 2 months prior to check-in Additional Exclusion Criteria for Healthy Subjects Only: Use of any tobacco- or nicotine-containing products within 6 months prior to check-in and during the entire study Significant history or clinical manifestation of any metabolic, allergic, dermatological, hepatic, renal, hematological, pulmonary, cardiovascular, gastrointestinal, neurological, or psychiatric disorder Additional Exclusion Criteria for Hepatic Impaired Subjects Only: Any evidence of progressive liver disease that has worsened or is worsening within 1 month prior to the screening visit Participant has shown evidence of hepatorenal syndrome Ascites requiring paracentesis Participant has required treatment for GI bleeding within 12 months prior to Check-in Participant has required additional medication for hepatic encephalopathy within the 12 months (6 months for severe hepatic impairment) prior to check-in Total bilirubin levels >6 mg/dL

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 74 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Normal Hepatic Function<br>Participants with normal hepatic function will be administered a single oral dose of ipatasertib (100 mg). | Drug: Ipatasertib<br>* A single oral dose of 100 mg ipatasertib will be administered.<br>* Other names: GDC-0068;|
| Experimental: Mild Hepatic Impairment<br>Participants with mild hepatic impairment (Child-Pugh Class A, score of 5 to 6, inclusive) will be administered a single dose of ipatasertib (100 mg). | Drug: Ipatasertib<br>* A single oral dose of 100 mg ipatasertib will be administered.<br>* Other names: GDC-0068;|
| Experimental: Moderate Hepatic Impairment<br>Participants with moderate hepatic impairment (Child-Pugh Class B, score of 7 to 9, inclusive) will be administered a single dose of ipatasertib (100 mg). | Drug: Ipatasertib<br>* A single oral dose of 100 mg ipatasertib will be administered.<br>* Other names: GDC-0068;|
| Experimental: Severe Hepatic Impairment<br>Participants with severe hepatic impairment (Child-Pugh Class C, score of 10 to 15, inclusive) will be administered a single dose of ipatasertib (100 mg). | Drug: Ipatasertib<br>* A single oral dose of 100 mg ipatasertib will be administered.<br>* Other names: GDC-0068;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Area Under the Plasma Concentration-Time Curve (AUC) from 0 to Infinity (AUC0-inf) of Ipatasertib | AUC0-inf is defined as AUC extrapolated from Hour 0 to infinity of ipatasertib in the plasma. | up to Day 15 | 
| Maximum Observed Plasma Concentration (Cmax) of Ipatasertib | Maximum observed concentration of ipatasertib as determined by measuring drug concentration in blood samples over time. | up to Day 15 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Percentage of Participants with Treatment-Emergent Adverse Events (AE) | An AE is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with the treatment. An adverse event can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a pharmaceutical product, whether or not considered related to the pharmaceutical product. Preexisting conditions which worsen during a study are also considered as adverse events. | up to Day 15 | 
| Time to Reach Maximum Observed Concentration (tmax) of Ipatasertib | Time from dose administration to observed maximum serum concentration for ipatasertib as determined by measuring drug concentration in blood samples over time. | up to Day 15 | 
| AUC from 0 to last measurable concentration (AUC0-t) | Area under the plasma concentration-time curve from Hour 0 to the last measurable concentration of ipatasertib. | up to Day 15 | 
| Half-life (t1/2) of Ipatasertib | Half-life of ipatasertib is the time elapsed for the drug concentration to decrease by half as determined by measuring drug concentration in blood samples over time. | up to Day 15 | 
| Apparent Plasma Clearance (CL/F) of Ipatasertib | Apparent clearance (CL/F) of ipatasertib, where CL is clearance and F is bioavailability (relative amount of extravascularly-administered drug that reaches systemic circulation unchanged). Determined by measuring drug concentration in blood samples over time. | Up to Day 15 | 
| Apparent Volume of Distribution (V/F) of Ipatasertib | Apparent volume of distribution (V/F) during the terminal phase of ipatasertib. | up to Day 15 |