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A Study to Evaluate the Effect of Itraconazole and Rifampin on the Pharmacokinetics of Talazoparib in Patients With Advanced Solid Tumors

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ClinicalTrials.gov Identifier: NCT03077607
Recruitment Status : Completed
First Posted : March 13, 2017
Results First Posted : March 29, 2019
Last Update Posted : July 2, 2019
Sponsor:
Collaborator:
Medivation, Inc.
Information provided by (Responsible Party):
Pfizer

Tracking Information
First Submitted Date  ICMJE January 20, 2017
First Posted Date  ICMJE March 13, 2017
Results First Submitted Date  ICMJE December 18, 2018
Results First Posted Date  ICMJE March 29, 2019
Last Update Posted Date July 2, 2019
Actual Study Start Date  ICMJE November 7, 2016
Actual Primary Completion Date December 19, 2017   (Final data collection date for primary outcome measure)
Current Primary Outcome Measures  ICMJE
 (submitted: December 18, 2018)
  • Maximum Observed Plasma Concentration (Cmax) of Talazoparib: Alone and in Combination With Itraconazole [ Time Frame: T1=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 1; T2=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 23 ]
    T1= Time frame for "Talazoparib 0.5 mg Alone" and T2= time frame for "Talazoparib 0.5 mg in Combination With Itraconazole 100 mg BID".
  • Area Under the Plasma Concentration-Time Curve From Time Zero to Last Quantifiable Concentration (AUC0-last) of Talazoparib: Alone and in Combination With Itraconazole [ Time Frame: T1=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 1; T2=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 23 ]
    T1= Time frame for "Talazoparib 0.5 mg Alone" and T2= time frame for "Talazoparib 0.5 mg in Combination With Itraconazole 100 mg BID".
  • Area Under the Plasma Concentration-Time Profile From Time Zero to Extrapolated Infinity (AUC0-inf) of Talazoparib: Alone and in Combination With Itraconazole [ Time Frame: T1=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 1; T2=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 23 ]
    T1= Time frame for "Talazoparib 0.5 mg Alone" and T2= time frame for "Talazoparib 0.5 mg in Combination With Itraconazole 100 mg BID".
  • Maximum Observed Plasma Concentration (Cmax) of Talazoparib: Alone and in Combination With Rifampin [ Time Frame: T3=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 1; T4=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 25 ]
    T3= Time frame for "Talazoparib 1.0 mg Alone" and T4= time frame for "Talazoparib 1.0 mg in Combination With Rifampin 600 mg QD".
  • Area Under the Plasma Concentration-Time Curve From Time Zero to Last Quantifiable Concentration (AUC0-last) of Talazoparib: Alone and in Combination With Rifampin [ Time Frame: T3=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 1; T4=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 25 ]
    T3= Time frame for "Talazoparib 1.0 mg Alone" and T4= time frame for "Talazoparib 1.0 mg in Combination With Rifampin 600 mg QD".
  • Area Under the Plasma Concentration-Time Curve From Time Zero to Extrapolated Infinite Time (AUC0-inf) of Talazoparib: Alone and in Combination With Rifampin [ Time Frame: T3=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 1; T4=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 25 ]
    T3= Time frame for "Talazoparib 1.0 mg Alone" and T4= time frame for "Talazoparib 1.0 mg in Combination With Rifampin 600 mg QD".
Original Primary Outcome Measures  ICMJE
 (submitted: March 7, 2017)
  • Effect of itraconozole and rifampin on PK of talazoparib measured as point estimate (ratio of test to reference) and 90% of Cmax [ Time Frame: Approximately 8 months following first patient enrolled ]
  • Effect of itraconozole and rifampin on PK of talazoparib measured as point estimate (ratio of test to reference) and 90% of AUCs [ Time Frame: Approximately 8 months following first patient enrolled ]
Change History Complete list of historical versions of study NCT03077607 on ClinicalTrials.gov Archive Site
Current Secondary Outcome Measures  ICMJE
 (submitted: December 18, 2018)
  • Time to Attain Maximum Observed Plasma Concentration (Tmax) of Talazoparib: Alone and in Combination With Itraconazole [ Time Frame: T1=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 1; T2=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 23 ]
    T1= Time frame for "Talazoparib 0.5 mg Alone" and T2= time frame for "Talazoparib 0.5 mg in Combination With Itraconazole 100 mg BID".
  • Terminal Elimination Half-Life (t1/2) of Talazoparib: Alone and in Combination With Itraconazole [ Time Frame: T1=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 1; T2=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 23 ]
    Terminal elimination half-life was defined as time measured for the plasma concentration of talazoparib to decrease by one half. T1= Time frame for "Talazoparib 0.5 mg Alone" and T2= time frame for "Talazoparib 0.5 mg in Combination With Itraconazole 100 mg BID".
  • Apparent Clearance (CL/F) of Talazoparib: Alone and in Combination With Itraconazole [ Time Frame: T1=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 1; T2=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 23 ]
    Clearance of talazoparib was measure of the rate at which it was metabolized or eliminated by normal biological processes. T1= Time frame for "Talazoparib 0.5 mg Alone" and T2= time frame for "Talazoparib 0.5 mg in Combination With Itraconazole 100 mg BID".
  • Apparent Volume of Distribution During Terminal Phase (Vz/F) of Talazoparib: Alone and in Combination With Itraconazole [ Time Frame: T1=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 1; T2=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 23 ]
    Apparent volume of distribution was defined as the theoretical volume in which the total amount of talazoparib would need to be uniformly distributed to produce its desired plasma concentration. T1= Time frame for "Talazoparib 0.5 mg Alone" and T2= time frame for "Talazoparib 0.5 mg in Combination With Itraconazole 100 mg BID".
  • Time to Attain Maximum Observed Plasma Concentration (Tmax) of Talazoparib: Alone and in Combination With Rifampin [ Time Frame: T3=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 1; T4=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 25 ]
    T3= Time frame for "Talazoparib 1.0 mg Alone" and T4= time frame for "Talazoparib 1.0 mg in Combination With Rifampin 600 mg QD".
  • Terminal Elimination Half-Life (t1/2) of Talazoparib: Alone and in Combination With Rifampin [ Time Frame: T3=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 1; T4=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 25 ]
    Terminal elimination half-life was defined as time measured for the plasma concentration of talazoparib to decrease by one half. T3= Time frame for "Talazoparib 1.0 mg Alone" and T4= time frame for "Talazoparib 1.0 mg in Combination With Rifampin 600 mg QD".
  • Apparent Volume of Distribution During Terminal Phase (Vz/F) of Talazoparib: Alone and in Combination With Rifampin [ Time Frame: T3=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 1; T4=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 25 ]
    Apparent volume of distribution was defined as the theoretical volume in which the total amount of talazoparib would need to be uniformly distributed to produce its desired plasma concentration. T3= Time frame for "Talazoparib 1.0 mg Alone" and T4= time frame for "Talazoparib 1.0 mg in Combination With Rifampin 600 mg QD".
  • Apparent Clearance (CL/F) of Talazoparib: Alone and in Combination With Rifampin [ Time Frame: T3=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 1; T4=Predose, 0.5, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264 and 336 hours post Talazoparib dose on Day 25 ]
    Clearance of talazoparib was measure of the rate at which it was metabolized or eliminated by normal biological processes. T3= Time frame for "Talazoparib 1.0 mg Alone" and T4= time frame for "Talazoparib 1.0 mg in Combination With Rifampin 600 mg QD".
  • Number of Participants With Treatment Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs) [ Time Frame: Baseline up to end of study (up to 61 days) ]
    An AE was any untoward medical occurrence in a participant who received study treatment without regard to possibility of causal relationship. An SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death, initial or prolonged inpatient hospitalization, life-threatening experience (immediate risk of dying), persistent or significant disability or incapacity, congenital anomaly. A treatment emergent AE was defined as an event that emerged during the treatment period that was absent before treatment, or worsened during the treatment period relative to the pre-treatment state. AEs included both serious and non-serious adverse events.
  • Number of Participants With Clinical Significance Abnormalities in Laboratory Parameters [ Time Frame: Baseline up to end of study (up to 61 days) ]
    Chemistry:(sodium135-146,potassium3.5-5.5,chloride95-109,glucose3.3-5.5,urea2.8-7.2,calcium2.2-2.65,phosphate0.8-1.45,triglyceride0.4-1.7,cholesterol2.6-5.2)millimoles/L, (bilirubin[direct0-3,total2-21],creatinine53- 110)micromole/L, (albumin35-52,protein65-83)g/L,(alkaline phosphatase30-120, aspartate amino[A]transferase[T]4-46, alanine AT4-49, lactic acid dehydrogenase200-460, gammaglutamylT7-50,creatinine kinase24-170)U/L. Hematology: hemoglobin(Hb)120-177, hematocrit0.35-0.49L/L, RBC4-5.9T/L, (platelet150- 400,WBC4-10,basophil<0.10,eosinophil<0.40, neutrophil1.50-7.00,monocyte<1.20,lymphocyte1.0 -3.70)G/L. Urine:(glucose,protein,ketone,Hb:negative/positive), specific gravity1.010-1.030g/cm^3, pH4.8-7.8, pale yellow-deep amber, microscopy[WBC0-5,leukocyte0-5,Hb0-3,cast0-1,bacteria0-500,epithelial0-6])Pcs/area. Coagulation:(activated partial thromboplastine time25-43,prothrombin time13.7-15.6) seconds,international normalized ratio0.89-1.1. Investigator judged clinical significance.
  • Number of Participants With Clinically Significant Abnormalities in Vital Signs [ Time Frame: Baseline up to end of study (up to 61 days) ]
    Vital sign abnormalities: a) systolic blood pressure (SBP): 1) minimum less than (<) 90 millimeter of mercury (mmHg), 2) change from baseline maximum decrease greater than equal to (>=) 30 mmHg, 3) change from baseline maximum increase >=30 mmHg; b) diastolic blood pressure (DBP): 1) minimum <50 mmHg, 2) change from baseline maximum decrease >=20 mmHg, 3) change from baseline maximum increase >=20 mmHg; c) supine pulse rate: 1) minimum <40 beats per minute (bpm), 2) maximum >120 bpm; d) standing pulse rate: 1) minimum <40 bpm and 2) maximum >140 bpm. Clinical significance of vital signs abnormalities was judged by investigator.
  • Number of Participants With Clinically Significant Abnormalities in Electrocardiogram (ECG) [ Time Frame: Baseline up to end of study (up to 61 days) ]
    ECG abnormalities: a) QT Interval: new absolute values greater than (>) 450, >480, >500 milliseconds (msec), increase from baseline >30 and >60 msec, b) QT interval using Fridericia's correction (QTcF) Interval: new absolute values >450, >480, >500 msec, increase from baseline >30 and > 60 msec, c) Heart rate: increase from baseline >25 percentage (%) and to a value >100 bpm, decrease from baseline >25% and to a value <50 bpm, d) PR Interval: increase from baseline > 25% and to a value >200 msec, e) QRS duration: increase from baseline > 25% and to a value >100 msec. Clinical significance of ECG abnormalities was judged by investigator.
  • Number of Participants With Clinically Significant Physical Examination Findings [ Time Frame: Baseline up to end of study (up to 61 days) ]
    Physical examination included examination of abdomen, cardiovascular, eyes, ears, nose, throat, general appearance, head, neck, thyroid, lymph nodes, musculoskeletal, neurological, skin / subcutaneous tissue, thorax / lungs, abdomen including spleen size, breasts (female only) and respiratory. Clinical significance of physical examination was judged by investigator.
Original Secondary Outcome Measures  ICMJE
 (submitted: March 7, 2017)
  • Safety and tolerability measured as summary of AEs [ Time Frame: Approximately 8 months following first patient enrolled ]
  • Safety and tolerability measured by physical examinations [ Time Frame: Approximately 8 months following first patient enrolled ]
  • Safety and tolerability measured by vital signs [ Time Frame: Approximately 8 months following first patient enrolled ]
  • Safety and tolerability measured by electrocardiograms (ECGs) [ Time Frame: Approximately 8 months following first patient enrolled ]
  • Safety and tolerability measured by laboratory evaluations [ Time Frame: Approximately 8 months following first patient enrolled ]
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
 
Descriptive Information
Brief Title  ICMJE A Study to Evaluate the Effect of Itraconazole and Rifampin on the Pharmacokinetics of Talazoparib in Patients With Advanced Solid Tumors
Official Title  ICMJE A PHASE 1 OPEN-LABEL, TWO-ARM,DRUG-DRUG INTERACTION STUDY TO EVALUATE THE EFFECT OF ITRACONAZOLE AND RIFAMPIN ON THE PHARMACOKINETICS OF TALAZOPARIB IN PATIENTS WITH ADVANCED SOLID TUMORS
Brief Summary This is a study in patients with advanced solid tumors for the investigation of P-gp inhibition and induction on the PK of talazoparib.
Detailed Description Subjects participating in this study with no clinically significant toxicities and no disease progression may be eligible to continue treatment on a separate extension protocol (MDV3800-13).
Study Type  ICMJE Interventional
Study Phase  ICMJE Phase 1
Study Design  ICMJE Allocation: Non-Randomized
Masking: None (Open Label)
Primary Purpose: Treatment
Condition  ICMJE Advanced Solid Tumors
Intervention  ICMJE
  • Drug: Talazoparib
    Arm A: 0.5 mg oral dose Arm B: 1 mg oral dose
  • Drug: Itraconazole
    100 mg oral dose
  • Drug: Rifampin
    600 mg oral dose
Study Arms  ICMJE
  • Experimental: Arm A
    Subjects will receive a 0.5 mg talazoparib and 100 mg itraconazole.
    Interventions:
    • Drug: Talazoparib
    • Drug: Itraconazole
  • Experimental: Arm B
    Subjects will receive 1 mg talazoparib and 600 mg rifampin.
    Interventions:
    • Drug: Talazoparib
    • Drug: Rifampin
Publications * Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status  ICMJE Completed
Actual Enrollment  ICMJE
 (submitted: March 7, 2017)
36
Original Estimated Enrollment  ICMJE Same as current
Actual Study Completion Date  ICMJE January 20, 2018
Actual Primary Completion Date December 19, 2017   (Final data collection date for primary outcome measure)
Eligibility Criteria  ICMJE

Inclusion Criteria:

  1. Arm A: At least 18 years of age and <65 years of age (at the time point of consent) and willing and able to provide informed consent. Arm B: At least 18 years of age (at the time point of consent) and willing and able to provide informed consent.
  2. Histologically confirmed advanced solid tumor (limited to platinum-resistant ovarian carcinoma, cervical adenocarcinoma, small cell lung carcinoma or triple-negative breast cancer) judged by the Investigator to not be appropriate for standard therapy.
  3. ECOG performance status ≤ 2 at screening and at time of enrollment.
  4. Expected life expectancy of ≥ 3 months.
  5. Able to swallow the study drug and comply with study requirements.
  6. Female subjects may be enrolled if they are considered not of childbearing potential, or who are post-menopausal, or are of childbearing potential using a highly effective form of contraceptive, and female subjects should not donate eggs from the time point of investigational medicinal product (IMP) administration until at least 45 days thereafter.
  7. Males with partners of childbearing potential may be enrolled if they use a condom when having sex with a pregnant woman or with a woman of childbearing potential, and do not donate sperm from the time point of study drug administration until at least 105 days thereafter, and males should not donate sperm from the time point of study drug administration until at least 105 days thereafter.
  8. Female subjects must not be breastfeeding at screening and during the study participation until 45 days after the last dose of the study drug.
  9. Willingness and ability to comply with scheduled visits, treatment plan, laboratory tests, and other trial procedures.

Exclusion Criteria:

  1. Treatment within 14 days or 5 half lives prior to dosing with any type of systemic anticancer therapy or any investigational agent, whichever is longer
  2. Major surgery within 8 weeks before screening.
  3. Serious accompanying disorder or impaired organ function.
  4. Symptomatic or impending spinal cord compression or cauda equina syndrome.
  5. Non-healing wound, ulcer, or bone fracture, not including a pathological bone fracture caused by a pre-existent pathological bone lesion.
  6. Known myelodysplastic syndrome.
  7. Subjects with the following serologies should be excluded: HBsAg+ or anti-HBc+;HCV+; HIV+.
  8. Serious or unstable medical condition that interferes with ability to tolerate treatment or assessments associated with the protocol.
  9. Gastrointestinal disorder affecting absorption.
  10. Known hypersensitivity to any of the talazoparib capsule components.
  11. Any condition or reason that interferes with ability to participate in the study, causes undue risk, or complicates the interpretation of safety data, in the opinion of the Investigator or Sponsor (e.g. non-compliance, excessive alcohol consumption, intake of drugs of abuse unless these drugs are medically indicated [e.g. opiates for pain relief].
Sex/Gender  ICMJE
Sexes Eligible for Study: All
Ages  ICMJE 18 Years and older   (Adult, Older Adult)
Accepts Healthy Volunteers  ICMJE No
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE Hungary,   Moldova, Republic of,   Poland,   Russian Federation
Removed Location Countries  
 
Administrative Information
NCT Number  ICMJE NCT03077607
Other Study ID Numbers  ICMJE MDV3800-04
C3441004 ( Other Identifier: Alias Study Number )
2016-001813-26 ( EudraCT Number )
Has Data Monitoring Committee No
U.S. FDA-regulated Product
Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
IPD Sharing Statement  ICMJE
Plan to Share IPD: No
Plan Description: Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.
Responsible Party Pfizer
Study Sponsor  ICMJE Pfizer
Collaborators  ICMJE Medivation, Inc.
Investigators  ICMJE
Study Director: Pfizer Pfizer CT.gov Call Center Pfizer
PRS Account Pfizer
Verification Date June 2019

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP