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A Cross-over Study to Evaluate the Effect of Itraconazole and Rifampicin on the Pharmacokinetics (PK) of GSK525762 in Healthy Female Subjects of Non Child Bearing Potential

NCT02706535 · Status: COMPLETED · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 29

Last updated 2020-11-16

No results posted yet for this study

Summary

This is a Phase I, single center, two-part, randomized, open label, cross-over study. Part 1 of this study will evaluate the PK, safety, and tolerability of GSK525762 when administered alone and when co-administered following repeat dosing of itraconazole, a known strong inhibitor of Cytochrome P450 3A4 (CYP3A4) and a Para-glycoprotein (Pgp) inhibitor. Part 1 will consist of 2 Cohorts with preliminary PK and safety data obtained from Cohort 1 informing Cohort 2. Part 2 (one Cohort) of the study will evaluate the PK, safety, and tolerability of GSK525762 when administered alone and when co-administered following repeat dosing of rifampicin, a known potent inducer of CYP3A4. In vitro inhibition data indicate CYP3A4 may be the major route of clearance for GSK525762 and co-administration of drug therapies which modulate CYP3A4 (i.e.CYP3A4 inhibitors and inducers) is likely to alter the exposure of GSK525762 (i.e. increase or decrease exposure, respectively). The data generated from this current study to justify exclusion criteria on concomitant medications which affect CYP3A4 or Pgp and also inform potential dose modification in case of co-administration with medication affecting CYP3A4 activity. All subjects will undergo a screening visit within 28 days of the first dose of study drug followed by one treatment period and a follow-up visit 7-10 days after the last dose of GSK525762. Subjects in Part 1 will participate in the study for up to 45 days and subjects in Part 2 will participate for up to 56 days.

Conditions

  • Drug Interactions
  • Neoplasms

Interventions

DRUG

GSK525762 Besylate Tablets

GSK525762 is available as a film-coated, white to slightly colored round, biconvex tablets with no markings. It is available in unit dose strength of 5 mg.

DRUG

Itraconazole 200 mg

Itraconazole is available as a clear yellow solution with unit dose strength of 10 mg/mL

DRUG

Rifampicin 300 mg

Rifampicin is available as a red capsule with printed markings and as a 300 mg unit dose strength.

Sponsors & Collaborators

Principal Investigators

  • GSK Clinical Trials · GlaxoSmithKline

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
70 Years
Sex
FEMALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2016-05-05
Primary Completion
2017-01-06
Completion
2017-01-06

Countries

  • United States

Study Locations

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Entities

Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02706535 on ClinicalTrials.gov