Trial Outcomes & Findings for A Study to Evaluate the Impact of Omeprazole on the Pharmacokinetics of Sotorasib Co-administered With an Acidic Beverage in Healthy Volunteers (NCT NCT05497557)

NCT ID: NCT05497557

Last Updated: 2024-01-19

Results Overview

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

16 participants

Primary outcome timeframe

Predose (Hour 0), 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, and 48 hours postdose following administration of sotorasib on Days 1 and 9

Results posted on

2024-01-19

Participant Flow

16 participants were enrolled at 1 center in the United States.

Participants were screened to assess their eligibility to enter the study within 28 days prior to the first dose administration.

Participant milestones

Participant milestones
Measure
Sotorasib Alone
On Day 1, participants received 960 mg sotorasib (8 x 120 mg tablets) administered orally with 240 mL of water after an overnight fast of at least 10 hours.
Omeprazole Alone
On Days 4 to 8, participants received 40 mg omeprazole (delayed release capsule) administered orally with 240 mL of water once daily (QD) after an overnight fast of at least 10 hours.
Omeprazole Co-administered With Sotorasib
On Day 9, participants received 40 mg omeprazole (delayed release capsule) followed by 960 mg sotorasib (8 x 120 mg tablets) administered orally within 5 minutes with 240 mL of an acidic beverage after an overnight fast of at least 10 hours.
Period 1: Sotorasib Alone
STARTED
16
0
0
Period 1: Sotorasib Alone
COMPLETED
16
0
0
Period 1: Sotorasib Alone
NOT COMPLETED
0
0
0
Period 2: Omeprazole Alone
STARTED
0
16
0
Period 2: Omeprazole Alone
COMPLETED
0
14
0
Period 2: Omeprazole Alone
NOT COMPLETED
0
2
0
Period 3: Omeprazole With Sotorasib
STARTED
0
0
14
Period 3: Omeprazole With Sotorasib
COMPLETED
0
0
14
Period 3: Omeprazole With Sotorasib
NOT COMPLETED
0
0
0

Reasons for withdrawal

Reasons for withdrawal
Measure
Sotorasib Alone
On Day 1, participants received 960 mg sotorasib (8 x 120 mg tablets) administered orally with 240 mL of water after an overnight fast of at least 10 hours.
Omeprazole Alone
On Days 4 to 8, participants received 40 mg omeprazole (delayed release capsule) administered orally with 240 mL of water once daily (QD) after an overnight fast of at least 10 hours.
Omeprazole Co-administered With Sotorasib
On Day 9, participants received 40 mg omeprazole (delayed release capsule) followed by 960 mg sotorasib (8 x 120 mg tablets) administered orally within 5 minutes with 240 mL of an acidic beverage after an overnight fast of at least 10 hours.
Period 2: Omeprazole Alone
Withdrawal by Subject
0
2
0

Baseline Characteristics

A Study to Evaluate the Impact of Omeprazole on the Pharmacokinetics of Sotorasib Co-administered With an Acidic Beverage in Healthy Volunteers

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Sotorasib and Omeprazole: All Participants
n=16 Participants
On Day 1, participants received 960 mg sotorasib (8 x 120 mg tablets) administered orally with 240 mL of water after an overnight fast of at least 10 hours. On Days 4 to 8, participants received 40 mg omeprazole (delayed release capsule) administered orally with 240 mL of water QD after an overnight fast of at least 10 hours. On Day 9, participants received 40 mg omeprazole (delayed release capsule) followed by 960 mg sotorasib (8 x 120 mg tablets) administered orally within 5 minutes with 240 mL of an acidic beverage after an overnight fast of at least 10 hours.
Age, Continuous
36.7 years
STANDARD_DEVIATION 10.18 • n=5 Participants
Sex: Female, Male
Female
2 Participants
n=5 Participants
Sex: Female, Male
Male
14 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
13 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
1 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
11 Participants
n=5 Participants
Race (NIH/OMB)
White
3 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
1 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Predose (Hour 0), 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, and 48 hours postdose following administration of sotorasib on Days 1 and 9

Population: Measured in the Pharmacokinetic Population for the primary endpoint analyses, which included all participants who received both sotorasib, and sotorasib in combination with omeprazole and an acidic beverage, and had evaluable pharmacokinetic data.

Outcome measures

Outcome measures
Measure
Sotorasib Alone
n=16 Participants
On Day 1, participants received 960 mg sotorasib (8 x 120 mg tablets) administered orally with 240 mL of water after an overnight fast of at least 10 hours.
Omeprazole Co-administered With Sotorasib
n=14 Participants
On Day 9, participants received 40 mg omeprazole (delayed release capsule) followed by 960 mg sotorasib (8 x 120 mg tablets) administered orally within 5 minutes with 240 mL of an acidic beverage after an overnight fast of at least 10 hours.
Omeprazole Co-administered With Sotorasib
On Day 9, participants received 40 mg omeprazole (delayed release capsule) followed by 960 mg sotorasib (8 x 120 mg tablets) administered orally within 5 minutes with 240 mL of an acidic beverage after an overnight fast of at least 10 hours.
Maximum Observed Plasma Concentration (Cmax) of Sotorasib
7160 ng/mL
Geometric Coefficient of Variation 22.9
4850 ng/mL
Geometric Coefficient of Variation 65.6

PRIMARY outcome

Timeframe: Predose (Hour 0), 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, and 48 hours postdose following administration of sotorasib on Days 1 and 9

Population: Measured in the Pharmacokinetic Population for the primary endpoint analyses, which included all participants who received both sotorasib, and sotorasib in combination with omeprazole and an acidic beverage, and had evaluable pharmacokinetic data.

Outcome measures

Outcome measures
Measure
Sotorasib Alone
n=16 Participants
On Day 1, participants received 960 mg sotorasib (8 x 120 mg tablets) administered orally with 240 mL of water after an overnight fast of at least 10 hours.
Omeprazole Co-administered With Sotorasib
n=14 Participants
On Day 9, participants received 40 mg omeprazole (delayed release capsule) followed by 960 mg sotorasib (8 x 120 mg tablets) administered orally within 5 minutes with 240 mL of an acidic beverage after an overnight fast of at least 10 hours.
Omeprazole Co-administered With Sotorasib
On Day 9, participants received 40 mg omeprazole (delayed release capsule) followed by 960 mg sotorasib (8 x 120 mg tablets) administered orally within 5 minutes with 240 mL of an acidic beverage after an overnight fast of at least 10 hours.
Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUCinf) of Sotorasib
30200 h*ng/mL
Geometric Coefficient of Variation 33.3
23500 h*ng/mL
Geometric Coefficient of Variation 60.4

PRIMARY outcome

Timeframe: Predose (Hour 0), 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, and 48 hours postdose following administration of sotorasib on Days 1 and 9

Population: Measured in the Pharmacokinetic Population for the primary endpoint analyses, which included all participants who received both sotorasib, and sotorasib in combination with omeprazole and an acidic beverage, and had evaluable pharmacokinetic data.

Outcome measures

Outcome measures
Measure
Sotorasib Alone
n=16 Participants
On Day 1, participants received 960 mg sotorasib (8 x 120 mg tablets) administered orally with 240 mL of water after an overnight fast of at least 10 hours.
Omeprazole Co-administered With Sotorasib
n=14 Participants
On Day 9, participants received 40 mg omeprazole (delayed release capsule) followed by 960 mg sotorasib (8 x 120 mg tablets) administered orally within 5 minutes with 240 mL of an acidic beverage after an overnight fast of at least 10 hours.
Omeprazole Co-administered With Sotorasib
On Day 9, participants received 40 mg omeprazole (delayed release capsule) followed by 960 mg sotorasib (8 x 120 mg tablets) administered orally within 5 minutes with 240 mL of an acidic beverage after an overnight fast of at least 10 hours.
Area Under the Concentration-time Curve From Time 0 to the Time of the Last Quantifiable Concentration (AUC0-tlast) of Sotorasib
30000 h*ng/mL
Geometric Coefficient of Variation 33.3
23200 h*ng/mL
Geometric Coefficient of Variation 62.2

SECONDARY outcome

Timeframe: Day 1 to Day 11

Population: Measured in the Safety Population, which included all participants who received at least 1 dose of study treatment and had at least 1 post-dose safety assessment.

An adverse event is any untoward medical occurrence in a clinical study participant irrespective of a causal relationship with the study treatment. A TEAE was defined as an adverse event that starts during or after the first dose, or starts prior to the first dose and increases in severity after the first dose. Any clinically significant changes in clinical laboratory tests, 12-lead electrocardiograms and vital signs were recorded as an adverse event.

Outcome measures

Outcome measures
Measure
Sotorasib Alone
n=16 Participants
On Day 1, participants received 960 mg sotorasib (8 x 120 mg tablets) administered orally with 240 mL of water after an overnight fast of at least 10 hours.
Omeprazole Co-administered With Sotorasib
n=16 Participants
On Day 9, participants received 40 mg omeprazole (delayed release capsule) followed by 960 mg sotorasib (8 x 120 mg tablets) administered orally within 5 minutes with 240 mL of an acidic beverage after an overnight fast of at least 10 hours.
Omeprazole Co-administered With Sotorasib
n=14 Participants
On Day 9, participants received 40 mg omeprazole (delayed release capsule) followed by 960 mg sotorasib (8 x 120 mg tablets) administered orally within 5 minutes with 240 mL of an acidic beverage after an overnight fast of at least 10 hours.
Number of Participants Who Experienced a Treatment-emergent Adverse Event (TEAE)
0 Participants
2 Participants
0 Participants

Adverse Events

Sotorasib Alone

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Omeprazole Alone

Serious events: 0 serious events
Other events: 2 other events
Deaths: 0 deaths

Omeprazole Co-administered With Sotorasib

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Sotorasib Alone
n=16 participants at risk
On Day 1, participants received 960 mg sotorasib (8 x 120 mg tablets) administered orally with 240 mL of water after an overnight fast of at least 10 hours.
Omeprazole Alone
n=16 participants at risk
On Days 4 to 8, participants received 40 mg omeprazole (delayed release capsule) administered orally with 240 mL of water once daily (QD) after an overnight fast of at least 10 hours.
Omeprazole Co-administered With Sotorasib
n=14 participants at risk
On Day 9, participants received 40 mg omeprazole (delayed release capsule) followed by 960 mg sotorasib (8 x 120 mg tablets) administered orally within 5 minutes with 240 mL of an acidic beverage after an overnight fast of at least 10 hours.
Gastrointestinal disorders
Constipation
0.00%
0/16 • Day 1 to Day 11
All-cause mortality, serious and other adverse events were measured in the Safety Population, which included all participants who received at least 1 dose of study treatment and had at least 1 post-dose safety assessment.
6.2%
1/16 • Number of events 1 • Day 1 to Day 11
All-cause mortality, serious and other adverse events were measured in the Safety Population, which included all participants who received at least 1 dose of study treatment and had at least 1 post-dose safety assessment.
0.00%
0/14 • Day 1 to Day 11
All-cause mortality, serious and other adverse events were measured in the Safety Population, which included all participants who received at least 1 dose of study treatment and had at least 1 post-dose safety assessment.
Nervous system disorders
Headache
0.00%
0/16 • Day 1 to Day 11
All-cause mortality, serious and other adverse events were measured in the Safety Population, which included all participants who received at least 1 dose of study treatment and had at least 1 post-dose safety assessment.
6.2%
1/16 • Number of events 1 • Day 1 to Day 11
All-cause mortality, serious and other adverse events were measured in the Safety Population, which included all participants who received at least 1 dose of study treatment and had at least 1 post-dose safety assessment.
0.00%
0/14 • Day 1 to Day 11
All-cause mortality, serious and other adverse events were measured in the Safety Population, which included all participants who received at least 1 dose of study treatment and had at least 1 post-dose safety assessment.
Nervous system disorders
Syncope
0.00%
0/16 • Day 1 to Day 11
All-cause mortality, serious and other adverse events were measured in the Safety Population, which included all participants who received at least 1 dose of study treatment and had at least 1 post-dose safety assessment.
6.2%
1/16 • Number of events 1 • Day 1 to Day 11
All-cause mortality, serious and other adverse events were measured in the Safety Population, which included all participants who received at least 1 dose of study treatment and had at least 1 post-dose safety assessment.
0.00%
0/14 • Day 1 to Day 11
All-cause mortality, serious and other adverse events were measured in the Safety Population, which included all participants who received at least 1 dose of study treatment and had at least 1 post-dose safety assessment.

Additional Information

Study Director

Amgen Inc.

Phone: 866-572-6436

Results disclosure agreements

  • Principal investigator is a sponsor employee The Clinical Trial Agreement generally does not restrict an investigator's discussion of trial results after completion. The Agreement permits Amgen a limited period of time to review material discussing trial results (typically up to 45 days and possible extension). Amgen may remove confidential information, but authors have final control and approval of publication content. For multicenter studies, the investigator agrees not to publish any results before the first multi-center publication.
  • Publication restrictions are in place

Restriction type: OTHER