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Study to Evaluate Effect of Sofosbuvir/Velpatasvir/GS-9857 Fixed-Dose Combination on the Pharmacokinetics of a Representative Hormonal Contraceptive Medication, Norgestimate/Ethinyl Estradiol

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ClinicalTrials.gov Identifier: NCT02533427
Recruitment Status : Completed
First Posted : August 26, 2015
Results First Posted : September 2, 2020
Last Update Posted : September 2, 2020
Sponsor:
Information provided by (Responsible Party):
Gilead Sciences

Brief Summary:
This study will evaluate the effect of sofosbuvir (SOF)/velpatasvir (VEL)/voxilaprevir (VOX) fixed-dose combination (FDC) + voxilaprevir on the pharmacokinetics (PK) of a representative hormonal contraceptive medication, norgestimate/ethinyl estradiol (Ortho Tri-Cyclen® Lo (OC)) and will assess the effect of norgestimate/ethinyl estradiol on the PK of SOF/VEL/VOX+VOX.

Condition or disease Intervention/treatment Phase
HCV Infection Drug: SOF/VEL/VOX Drug: VOX Drug: Norgestimate/ethinyl estradiol Phase 1

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 15 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Phase 1, Open-Label, Drug Interaction Study Evaluating the Effect of Sofosbuvir/Velpatasvir/GS-9857 Fixed-Dose Combination on the Pharmacokinetics of a Representative Hormonal Contraceptive Medication, Norgestimate/Ethinyl Estradiol
Actual Study Start Date : October 29, 2015
Actual Primary Completion Date : March 18, 2016
Actual Study Completion Date : March 18, 2016


Arm Intervention/treatment
Experimental: SOF/VEL/VOX + VOX

Part A: Participants without a documented history of taking norgestimate/ethinyl estradiol for at least one menstrual cycle will receive norgestimate/ethinyl estradiol. Participants with a documented history of taking norgestimate/ethinyl estradiol may enroll directly into Part B of the study.

Part B: Participants will continue taking norgestimate/ethinyl estradiol for the remainder of the study and will receive SOF/VEL/VOX FDC plus VOX.

Drug: SOF/VEL/VOX
400/100/100 mg FDC tablet administered orally once daily
Other Name: Epclusa®

Drug: VOX
100 mg tablet administered orally once daily
Other Name: GS-9857

Drug: Norgestimate/ethinyl estradiol
Norgestimate 0.180 mg/0.215 mg/0.25 mg/ethinyl estradiol 0.025 mg tablet administered orally once daily according to the package insert
Other Name: Ortho-Tri-Cyclen® Lo




Primary Outcome Measures :
  1. Pharmacokinetic (PK) Parameter: AUCtau of Norelgestromin [ Time Frame: Cycle 1,Study Day 14: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose; Cycle 2,Study Day 42: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    AUCtau is defined as concentration of drug over time (the area under the concentration verses time curve over the dosing interval).

  2. PK Parameter: AUCtau of Norgestrel [ Time Frame: Cycle 1,Study Day 14: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose; Cycle 2,Study Day 42: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    AUCtau is defined as concentration of drug over time (the area under the concentration verses time curve over the dosing interval).

  3. PK Parameter: AUCtau of Ethinyl Estradiol [ Time Frame: Cycle 1,Study Day 14: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose; Cycle 2,Study Day 42: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    AUCtau is defined as concentration of drug over time (the area under the concentration verses time curve over the dosing interval).

  4. Pharmacokinetic (PK) Parameter: AUCtau of Norgestimate [ Time Frame: Cycle 1,Study Day 14:Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose; Cycle 2,Study Day 42: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    AUCtau is defined as concentration of drug over time (the area under the concentration verses time curve over the dosing interval).

  5. PK Parameter: Cmax of Norelgestromin [ Time Frame: Cycle 1,Study Day 14:Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose; Cycle 2,Study Day 42: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    Cmax is defined as the maximum concentration of drug.

  6. PK Parameter: Cmax of Norgestrel [ Time Frame: Cycle 1,Study Day 14: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose; Cycle 2,Study Day 42: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    Cmax is defined as the maximum concentration of drug.

  7. PK Parameter: Cmax of Ethinyl Estradiol [ Time Frame: Cycle 1,Study Day 14: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose; Cycle 2,Study Day 42: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    Cmax is defined as the maximum concentration of drug.

  8. PK Parameter: Cmax of Norgestimate [ Time Frame: Cycle 1,Study Day 14: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose; Cycle 2,Study Day 42: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    Cmax is defined as the maximum concentration of drug.

  9. PK Parameter: Ctau of Norelgestromin [ Time Frame: Part A:Cycle 1,Study Day 14:Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose; Part B:Cycle 2,Study Day 42:Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    Ctau is defined as the observed drug concentration at the end of the dosing interval.

  10. PK Parameter: Ctau of Norgestrel [ Time Frame: Cycle 1,Study Day 14: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose; Cycle 2,Study Day 42: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    Ctau is defined as the observed drug concentration at the end of the dosing interval.

  11. PK Parameter: Ctau of Ethinyl Estradiol [ Time Frame: Cycle 1,Study Day 14: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose; Cycle 2,Study Day 42: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    Ctau is defined as the observed drug concentration at the end of the dosing interval.

  12. PK Parameter: Ctau of Norgestimate [ Time Frame: Cycle 1,Study Day 14: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose;Cycle 2,Study Day 42: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    Ctau is defined as the observed drug concentration at the end of the dosing interval.


Secondary Outcome Measures :
  1. Percentage of Participants Who Experienced Treatment-Emergent Adverse Events [ Time Frame: First dose date up to the last dose date (maximum: 84 days) plus 10 days ]
  2. Percentage of Participants Who Experienced Laboratory Abnormalities [ Time Frame: First dose date up to the last dose date (maximum: 84 days) plus 10 days ]
    Treatment-emergent laboratory abnormalities were defined as values that increase at least one toxicity grade from baseline. The most severe graded abnormality from all tests was counted for each participant. Grade 1: mild; Grade 2: moderate;Grade 3: severe or medically significant but not immediately life-threatening; Grade 4: life-threatening consequences.

  3. PK Parameter: Tmax of Norelgestromin, Norgestrel, Ethinyl Estradiol, and Norgestimate [ Time Frame: Cycle 1,Study Day 14: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose; Cycle 2,Study Day 42: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    Tmax is defined as the time (observed time point) of Cmax.

  4. PK Parameter: Tlast of Norelgestromin, Norgestrel, Ethinyl Estradiol, and Norgestimate [ Time Frame: Cycle 1,Study Day 14: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose; Cycle 2,Study Day 42: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    Tlast is defined as the time (observed time point) of Clast.

  5. PK Parameter: λz of Norelgestromin, Norgestrel, Ethinyl Estradiol, and Norgestimate [ Time Frame: Cycle 1,Study Day 14: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose; Cycle 2,Study Day 42:Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    λz is defined as the terminal elimination rate constant, estimated by linear regression of the terminal elimination phase of the log plasma concentration of drug versus time curve of the drug.

  6. PK Parameter: t1/2 of Norelgestromin, Norgestrel, Ethinyl Estradiol, and Norgestimate [ Time Frame: Cycle 1,Study Day 14: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose; Cycle 2,Study Day 42: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    t1/2 is defined as the estimate of the terminal elimination half-life of the drug.

  7. PK Parameter: CLss/F Ethinyl Estradiol, and Norgestimate [ Time Frame: \Cycle 1,Study Day 14: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose; Cycle 2,Study Day 42: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    CLss/F is defined as the apparent steady state oral clearance following administration of the drug.

  8. PK Parameter: Cmax of Sofosbuvir (SOF), SOF Metabolites (GS-566500 and GS-331007), Velpatasvir (VEL), and Voxilaprevir (VOX) [ Time Frame: Cycle 2, Study Day 42: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    Cmax is defined as the maximum concentration of drug.

  9. PK Parameter: Tmax of SOF, SOF Metabolites (GS-566500 and GS-331007), VEL, and VOX [ Time Frame: Cycle 2, Study Day 42: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    Tmax is defined as the time (observed time point) of Cmax.

  10. PK Parameter: Tlast of SOF, SOF Metabolites (GS-566500 and GS-331007), VEL, and VOX [ Time Frame: Cycle 2, Study Day 42: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    Tlast is defined as the time (observed time point) of Clast.

  11. PK Parameter: Ctau of SOF Metabolites (GS-566500 and GS-331007), VEL, and VOX [ Time Frame: Cycle 2, Study Day 42: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    Ctau is defined as the observed drug concentration at the end of the dosing interval.

  12. PK Parameter: λz of SOF, SOF Metabolites (GS-566500 and GS-331007), VEL, and VOX [ Time Frame: Cycle 2, Study Day 42: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    λz is defined as the terminal elimination rate constant, estimated by linear regression of the terminal elimination phase of the log plasma concentration of drug versus time curve of the drug.

  13. PK Parameter: AUCtau of SOF, SOF Metabolites (GS-566500 and GS-331007), VEL, and VOX [ Time Frame: Cycle 2, Study Day 42: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    AUCtau is defined as concentration of drug over time (the area under the concentration verses time curve over the dosing interval).

  14. PK Parameter: CLss/F of SOF, VEL, and VOX [ Time Frame: Cycle 2, Study Day 42: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    CLss/F is defined as the apparent steady state oral clearance following administration of the drug.

  15. PK Parameter: t1/2 of SOF, SOF Metabolites (GS-566500 and GS-331007), VEL, and VOX [ Time Frame: Cycle 2, Study Day 42: Predose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 16, 20, and 24 hours postdose ]
    t1/2 is defined as the estimate of the terminal elimination half-life of the drug.



Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


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Ages Eligible for Study:   18 Years to 45 Years   (Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • Premenopausal female
  • Must have a calculated body mass index (BMI) ≥ 19.0 and ≤ 30.0 kg/m^2 at screening
  • Must have a negative serum pregnancy test at screening and urine pregnancy test at Day -1
  • Be willing and able to comply with all study requirements.

Exclusion Criteria:

  • Lactating female
  • Have a history of any of the following:

    • Significant drug sensitivity or drug allergy (such as anaphylaxis or hepatoxicity)
    • Known hypersensitivity to the study drugs, the metabolites or formulation excipients
  • Believed, by the study investigator, to be inappropriate for study participation for any reason

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02533427


Locations
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New Zealand
Christchurch, New Zealand
Sponsors and Collaborators
Gilead Sciences
Investigators
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Study Director: Gilead Study Director Gilead Sciences
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Responsible Party: Gilead Sciences
ClinicalTrials.gov Identifier: NCT02533427    
Other Study ID Numbers: GS-US-367-1909
First Posted: August 26, 2015    Key Record Dates
Results First Posted: September 2, 2020
Last Update Posted: September 2, 2020
Last Verified: August 2020
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description: Qualified external researchers may request IPD for this study after study completion. For more information, please visit our website at https://www.gilead.com/science-and-medicine/research/clinical-trials-transparency-and-data-sharing-policy
Supporting Materials: Study Protocol
Statistical Analysis Plan (SAP)
Time Frame: 18 months after study completion
Access Criteria: A secured external environment with username, password, and RSA code.
URL: https://www.gilead.com/science-and-medicine/research/clinical-trials-transparency-and-data-sharing-policy

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
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Hepatitis C
Hepatitis, Viral, Human
Virus Diseases
Flaviviridae Infections
RNA Virus Infections
Hepatitis
Liver Diseases
Digestive System Diseases
Norgestimate
Norgestimate, ethinyl estradiol drug combination
Estradiol
Ethinyl Estradiol
Estrogens
Hormones
Hormones, Hormone Substitutes, and Hormone Antagonists
Physiological Effects of Drugs
Contraceptive Agents
Reproductive Control Agents
Contraceptive Agents, Female
Contraceptives, Oral, Synthetic
Contraceptives, Oral
Contraceptives, Oral, Combined