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SSP-002358 Drug Interaction Study With Omeprazole

A Phase 1, Open-label, Randomized, 2-period Crossover Drug Interaction Study in Healthy Adult Subjects to Evaluate the Effect of the Proton Pump Inhibitor Omeprazole on the Pharmacokinetics of SSP-002358

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01415349
Enrollment
42
Registered
2011-08-11
Start date
2011-08-11
Completion date
2011-09-28
Last updated
2021-06-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy

Brief summary

This is a drug interaction study evaluating whether blood plasma concentrations of SSP-002358-base are altered when SSP-002358 is taken together with omeprazole.

Interventions

DRUGSSP-002358

1 mg, oral, once

DRUGSSP-002358 + omeprazole

SSP-002358 (1 mg) + omeprazole (40 mg) given orally, once

Sponsors

Shire
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

1. Age 18-55 years inclusive at the time of consent. 2. Subject is willing to comply with any applicable contraceptive requirements of the protocol and is: * Male, or * Non-pregnant, non-lactating female * Females must be at least 90 days post-partum or nulliparous.

Exclusion criteria

1. Any current or recurrent disease (eg, cardiovascular, renal, liver, gastrointestinal, malignancy or other conditions) that could affect the action, absorption, or disposition of the investigational product, or could affect clinical or laboratory assessments. 2. Any known or suspected intolerance or hypersensitivity to the investigational product or omeprazole, closely related compounds, or any of the stated ingredients.

Design outcomes

Primary

MeasureTime frameDescription
Maximum Plasma Concentration (Cmax) for SSP-002358Assessed over 48 hours post-doseCmax is a term that refers to the maximum (or peak) concentration that a drug achieves in the body after the drug has been administrated.
Area Under the Plasma Concentration Versus Time Curve From Time Zero to Infinity (AUC 0→∞) for SSP-002358Assessed over 48 hours post-doseArea under the plasma concentration versus time curve from time 0 to infinity. AUC can be used as a measure of drug exposure. It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body.

Countries

Netherlands

Participant flow

Participants by arm

ArmCount
Safety Analysis Set
Safety Analysis Set defined as all subjects who took at least 1 dose of investigational product and had at least 1 post-dose safety assessment.
42
Total42

Withdrawals & dropouts

PeriodReasonFG000FG001
Treatment Period 1Adverse Event01
Treatment Period 1Withdrawal by Subject01

Baseline characteristics

CharacteristicSafety Analysis Set
Age, Continuous27.4 years
STANDARD_DEVIATION 10.52
Age, Customized
Between 18 and 55 years
42 Participants
Region of Enrollment
Netherlands
42 Participants
Sex: Female, Male
Female
23 Participants
Sex: Female, Male
Male
19 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
37 / 4038 / 42
serious
Total, serious adverse events
0 / 400 / 42

Outcome results

Primary

Area Under the Plasma Concentration Versus Time Curve From Time Zero to Infinity (AUC 0→∞) for SSP-002358

Area under the plasma concentration versus time curve from time 0 to infinity. AUC can be used as a measure of drug exposure. It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body.

Time frame: Assessed over 48 hours post-dose

Population: Pharmacokinetic Analysis Set defined as all subjects in the Safety Analysis Set for whom the primary pharmacokinetic data were considered sufficient and interpretable. Subjects who vomited or experienced significant diarrhea between dosing and 10 hours post-dose were excluded from the pharmacokinetic descriptive statistics and statistical analysis.

ArmMeasureValue (MEAN)Dispersion
SSP-002358 AloneArea Under the Plasma Concentration Versus Time Curve From Time Zero to Infinity (AUC 0→∞) for SSP-00235823.3 ng*h/mlStandard Deviation 6.33
SSP-002358 + OmeprazoleArea Under the Plasma Concentration Versus Time Curve From Time Zero to Infinity (AUC 0→∞) for SSP-00235824.6 ng*h/mlStandard Deviation 6.31
90% CI: [0.998, 1.08]Mixed Models Analysis
Primary

Maximum Plasma Concentration (Cmax) for SSP-002358

Cmax is a term that refers to the maximum (or peak) concentration that a drug achieves in the body after the drug has been administrated.

Time frame: Assessed over 48 hours post-dose

Population: Pharmacokinetic Analysis Set defined as all subjects in the Safety Analysis Set for whom the primary pharmacokinetic data were considered sufficient and interpretable. Subjects who vomited or experienced significant diarrhea between dosing and 10 hours post-dose were excluded from the pharmacokinetic descriptive statistics and statistical analysis.

ArmMeasureValue (MEAN)Dispersion
SSP-002358 AloneMaximum Plasma Concentration (Cmax) for SSP-0023583.89 ng/mlStandard Deviation 1.3
SSP-002358 + OmeprazoleMaximum Plasma Concentration (Cmax) for SSP-0023584.12 ng/mlStandard Deviation 1.29
90% CI: [0.966, 1.09]Mixed Models Analysis

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026