Phase 1
Completed N=38
An Open-Label Pharmacokinetics and Safety Study of Talazoparib (MDV3800)
Source: ClinicalTrials.gov NCT02997176 ↗Enrolled (actual)
38
Serious AEs
50.0%
Results posted
Feb 2021
Primary outcomePrimary: Area Under the Free Plasma Concentration Time Curve From Zero to 24 Hours (AUC0-24) of Talazoparib on Day 22 — 111.8; 159.0; 123.6; NA nanogram*hour per milliliter
Summary
This is a trial to investigate the pharmacokinetics (PK) and the safety of talazoparib in patients with advanced solid tumors and impaired hepatic function.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Area Under the Free Plasma Concentration Time Curve From Zero to 24 Hours (AUC0-24) of Talazoparib on Day 22 |
111.8; 159.0; 123.6; NA | — |
| PRIMARY Maximum Observed Plasma Concentration (Cmax) of Talazoparib on Day 22 |
10.30; 11.30; 13.56; NA | — |
| PRIMARY Unbound Area Under the Free Plasma Concentration Time Curve From Zero to 24 Hours (AUC0-24u) of Talazoparib on Day 22 |
30.17; 45.08; 33.50; NA | — |
| PRIMARY Unbound Maximum Observed Plasma Concentration (Cmaxu) of Talazoparib on Day 22 |
2.778; 3.204; 3.675; NA | — |
| SECONDARY Area Under the Free Plasma Concentration Time Curve From Zero to 24 Hours (AUC0-24) of Talazoparib on Day 1 |
22.21; 27.63; 25.20; 21.26 | — |
| SECONDARY Maximum Observed Plasma Concentration (Cmax) of Talazoparib on Day 1 |
3.068; 3.047; 2.959; 1.965 | — |
| SECONDARY Time to Reach Maximum Observed Plasma Concentration (Tmax) of Talazoparib on Day 1 |
1.00; 1.51; 0.55; 1.00 | — |
| SECONDARY Fraction of Unbound (fu) Plasma Talazoparib on Day 1 |
28.76; 28.11; 27.47; 34.66 | — |
| SECONDARY Unbound Area Under the Free Plasma Concentration Time Curve From Zero to 24 Hours (AUC0-24u) of Talazoparib on Day 1 |
6.388; 7.569; 6.922; 7.528 | — |
| SECONDARY Unbound Maximum Observed Plasma Concentration (Cmaxu) of Talazoparib on Day 1 |
0.8823; 0.8345; 0.8131; 0.7448 | — |
| SECONDARY Plasma Trough Concentration (Ctrough) of Talazoparib on Day 8, 15 and 22 |
2.244; 4.807; 3.788; 3.329; 2.857; NA | — |
| SECONDARY Time to Reach Maximum Observed Plasma Concentration (Tmax) of Talazoparib on Day 22 |
1.50; 2.13; 1.05; NA | — |
| SECONDARY Fraction of Unbound (fu) Plasma Talazoparib on Day 22 |
26.98; 27.71; 27.10; 33.92 | — |
| SECONDARY Accumulation Ratio (Rac) of Plasma Talazoparib |
5.070; 5.134; 4.771; NA | — |
| SECONDARY Apparent Clearance (CL/F) of Plasma Talazoparib on Day 22 |
5.070; 5.134; 4.771; NA | — |
| SECONDARY Unbound Apparent Clearance (CLu/F) of PlasmaTalazoparib on Day 22 |
16.57; 11.09; 14.92; NA | — |
| SECONDARY Amount of Talazoparib Excreted Unchanged in Urine From Time Zero to 24 Hours (Ae 0-24) on Day 1 |
0.03816; 0.03534; 0.04292; 0.02319 | — |
| SECONDARY Percentage of Talazoparib Excreted in Urine From Time Zero to 24 Hours (Ae 0-24%) on Day 1 |
7.638; 7.070; 8.582; 4.641 | — |
| SECONDARY Amount of Talazoparib Excreted Unchanged in Urine From Time Zero to 24 Hours (Ae 0-24) on Day 22 |
0.2229; 0.1819; 0.1867; NA | — |
| SECONDARY Percentage of Talazoparib Excreted in Urine From Time 0 to 24 Hours (Ae 0-24%) on Day 22 |
44.58; 36.36; 37.40; NA | — |
| SECONDARY Renal Clearance (CLr) of Talazoparib on Day 22 |
1.993; 1.449; 1.510; NA | — |
| SECONDARY Number of Participants With Clinically Significant Laboratory Abnormalities |
0; 0; 0; 3 | — |
| SECONDARY Change From Baseline in Vital Sign -Blood Pressure at Day 2, 8, 15, 22 and End of Study |
128.1; 110.3; 121.8; 115.8; -12.3; -1.1 | — |
| SECONDARY Change From Baseline in Vital Sign- Heart Rate at Day 2, 8, 15, 22 and End of Study |
75.9; 89.2; 87.4; 92.3; 3.0; 4.7 | — |
| SECONDARY Change From Baseline in Vital Sign- Respiratory Rate at Day 8, 15, 22 and End of Study |
18.3; 17.1; 16.8; 17.4; -0.3; 0.6 | — |
| SECONDARY Change From Baseline in Vital Sign- Weight at Day 8, 15, 22 and End of Study |
82.01; 63.07; 77.78; 66.98; -0.04; -0.10 | — |
| SECONDARY Number of Participants Who Met the Pre-specified 12-Lead Electrocardiogram (ECG) Criteria |
2; 2; 1; 4; 0; 0 | — |
| SECONDARY Number of Participants With Eastern Cooperative Oncology Group (ECOG) Performance Status |
3; 1; 1; 0; 4; 8 | — |
Eligibility Criteria
Inclusion Criteria
- Signed and dated Informed Consent Form (by the patient or a legally acceptable representative as per the local regulations).
- Female or male at least 18 years of age.
- Histologically or cytologically confirmed advanced solid tumor with no available standard treatment options in the opinion of the Investigator
- Eastern Cooperative Oncology Group (ECOG) Performance status ≤ 2.
- Expected life expectancy of ≥ 3 months.
- Able to swallow the study drug (no contraindication to oral agents).
- Hepatic function at screening and enrollment as defined by the NCI organ dysfunction working group (NCI-ODWG) criteria.
- Adequate other organ function at screening and enrollment.
- Female patients of childbearing potential must have a negative serum pregnancy test at screening and must agree to use a highly effective form of contraception from the time of the first dose of study drug through 7 months after the last dose of study drug.
- Male patients must agree to use a condom when having sex with a pregnant woman or with a non-pregnant female partner of childbearing potential, from 21 days before the first dose of study drug through 4 months after last dose of study drug.
- Female patients must not be breastfeeding at screening nor during the study participation until 7 months after the last dose of the study drug.
- Willingness and ability to comply with scheduled visits, treatment plan, laboratory tests, and other trial procedures.
Exclusion Criteria
- Treatment within 14 days or five half lives prior to enrollment whichever is longer with any type of systemic anticancer-therapy or any investigational drug
- Have not recovered (recovery is defined as CTCAE grade ≤ 1) from the acute toxicities of previous anticancer standard or investigational therapy, except treatment-related alopecia or laboratory abnormalities otherwise meeting eligibility requirements.
- Major surgery within 28 days prior to enrollment.
- Serious accompanying cardiac disorder
- Active known or suspected brain metastasis or active leptomeningeal disease needing treatment
- Symptomatic or impending spinal cord compression or cauda equine syndrome
- Has undergone a liver transplant, kidney transplant or nephrectomy.
- Prior allergic reaction or severe intolerance (meeting the criteria for a serious adverse event, a grade 3 or 4 AE, or permanent treatment discontinuation) to a poly ADP ribose polymerase (PARP) inhibitor.
- Known myelodysplastic syndrome
- Seropositive for human immunodeficiency virus (HIV).
- Any serious or unstable medical condition that interferes with ability to tolerate treatment or assessments associated with the protocol.
- Gastrointestinal disorder affecting absorption.
- Known or suspected hypersensitivity to any of the talazoparib capsule components.
- Any condition or reason that interferes with ability to participate in the study, tolerate treatment or assessments associated with the protocol, causes undue risk, or complicates the interpretation of safety data, in the opinion of the Investigator or Medical Monitor
Data sourced from ClinicalTrials.gov (NCT02997176). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.