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Olaparib dosing

Phase 1

Solid Tumours | Small molecule | Oncology |AstraZeneca PLC|Trials Updated: Sep 13, 2019

Olaparib dosing target and mechanism

Molecular targetPARP1, PARP3, PARP2
Target classInhibitor
ModalitySmall molecule

Also known as Olaparib tablet dosing

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials4
Total Enrollment204

FDA Designations

No designations recorded

Olaparib dosing clinical trials

Olaparib dosing · 4 trials · 1 indication

Phase 1 4
NCT01894243Study to Assess the Blood Levels and Safety of Olaparib in Patients With Advanced Solid Tumours and Normal Liver Function or Mild or Moderate Liver ImpairmentSolid Tumours
COMPLETED31 Analytics
NCT01929603Study to Assess the Effect of Rifampicin (CYP Inducer) on Blood Levels and Safety of Olaparib in Patients With Advanced Solid TumoursSolid Tumours
COMPLETED32 Analytics
NCT01894256Study to Assess the Blood Levels and Safety of Olaparib in Patients With Advanced Solid Tumours and Normal or Impaired Kidney FunctionSolid Tumours
COMPLETED56 Analytics
NCT01900028To Assess the Effect of Itraconazole (a CYP3A4 Inhibitor) on the Pharmacokinetics of Olaparib, and the Effect of Olaparib on QT Interval Following Oral Dosing of a Tablet Formulation to Patients With Advanced Solid TumoursSolid Tumours
COMPLETED85 Analytics
PHASE1COMPLETED
Study to Assess the Blood Levels and Safety of Olaparib in Patients With Advanced Solid Tumours and Normal Liver Function or Mild or Moderate Liver Impairment
Solid TumoursUnlock trial analytics
PHASE1COMPLETED
Study to Assess the Effect of Rifampicin (CYP Inducer) on Blood Levels and Safety of Olaparib in Patients With Advanced Solid Tumours
Solid TumoursUnlock trial analytics
PHASE1COMPLETED
Study to Assess the Blood Levels and Safety of Olaparib in Patients With Advanced Solid Tumours and Normal or Impaired Kidney Function
Solid TumoursUnlock trial analytics
PHASE1COMPLETED
To Assess the Effect of Itraconazole (a CYP3A4 Inhibitor) on the Pharmacokinetics of Olaparib, and the Effect of Olaparib on QT Interval Following Oral Dosing of a Tablet Formulation to Patients With Advanced Solid Tumours
Solid TumoursUnlock trial analytics

Study Endpoints

Primary Endpoints

Maximum Plasma Concentration (Cmax)
Blood samples are collected at pre-dose, 0.25 , 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72 and 96 hours post olaparib dose in Part A.

Summary of Geometric Least Squares (GLS) Mean for normal, mild and moderate hepatic impairment

Ratio of Maximum Plasma Concentration (Cmax) - Mild vs Normal and Moderate vs Normal
Blood samples are collected at pre-dose, 0.25 , 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72 and 96 hours post olaparib dose in Part A.

Summary of ratio of Geometric Least Squares (GLS) Means

Area Under the Plasma Concentration Time Curve From Zero to Infinity (AUC)
Blood samples are collected at pre-dose, 0.25 , 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72 and 96 hours post olaparib dose in Part A.

Summary of Geometric Least Squares (GLS) Mean

Ratio of Area Under the Plasma Concentration Time Curve From Zero to Infinity (AUC) - Mild vs Normal and Moderate vs Normal
Blood samples are collected at pre-dose, 0.25 , 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72 and 96 hours post olaparib dose in Part A.

Summary of Ratio of Geometric Least Squares (GLS) Means

Area Under the Plasma Concentration Time Curve From Zero to the Last Measureable Time Point(AUC 0-t)
Blood samples are collected at pre-dose, 0.25 , 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72 and 96 hours post olaparib dose in Part A.

Summary of Geometric Least Squares (GLS) Mean for ratio of mild hepatic impairment compared to normal

Ratio of Area Under the Plasma Concentration Time Curve From Zero to the Last Measureable Time Point(AUC 0-t)
Blood samples are collected at pre-dose, 0.25 , 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72 and 96 hours post olaparib dose in Part A.

Summary of Ratio of Geometric Least Squares (GLS) Means

Apparent Clearance Following Oral Administration (CL/F)
Blood samples are collected at pre-dose, 0.25 , 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72 and 96 hours post olaparib dose in Part A.

Summary of Geometric Least Squares (GLS) Means

Ratio of Apparent Clearance Following Oral Administration (CL/F)
Blood samples are collected at pre-dose, 0.25 , 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72 and 96 hours post olaparib dose in Part A.

Summary of Ratio of Geometric Least Squares (GLS) Means

Time to Reach Maximum Plasma Concentration (Tmax)
Blood samples are collected at pre-dose, 0.25 , 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72 and 96 hours post olaparib dose in Part A.
Terminal Half-life (t½)
Blood samples are collected at pre-dose, 0.25 , 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72 and 96 hours post olaparib dose in Part A.
Apparent Volume of Distribution (Vz/F)
Blood samples are collected at pre-dose, 0.25 , 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72 and 96 hours post olaparib dose in Part A.
Pharmacokinetics of olaparib by assessment of maximum plasma olaparib concentration (Cmax)
Blood samples are collected on olaparib dosing days (Day 1 and 14) at pre-dose, 0.25 , 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours post olaparib dose Part A.

Rate and extent of absorption of olaparib following single oral doses of olaparib tablet formulation by assessment of maximum plasma olaparib concentration (Cmax). Olaparib doses are first without, then with rifampicin.

Pharmacokinetics of olaparib by assessment of area under the plasma concentration time curve from zero to infinity (AUC)
Blood samples are collected on olaparib dosing days (Day 1 and 14) at pre-dose, 0.25 , 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours post olaparib dose Part A.

Rate and extent of absorption of olaparib following single oral doses of olaparib tablet formulation by assessment of area under the plasma concentration time curve from zero to infinity (AUC). Olaparib doses are first without, then with rifampicin.

Pharmacokinetics of olaparib by assessment of area under the plasma concentration time curve from zero to the last measurable time point, AUC0-t, if AUC is not adequately estimable.
Blood samples are collected on olaparib dosing days (Day 1 and 14) at pre-dose, 0.25 , 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours post olaparib dose Part A.

Rate and extent of absorption of olaparib following single oral doses of olaparib tablet formulation by assessment of area under the plasma concentration time curve from zero to the last measurable time point, AUC0-t, if AUC is not adequately estimable. Olaparib doses are first without, then with rifampicin.

Cmax of Olaparib
Part A: pre-dose, 0.25, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72 and 96 hours post-dose

Maximum plasma drug concentration of olaparib

AUC of Olaparib
Part A: pre-dose, 0.25, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72 and 96 hours post-dose

Area under plasma concentration-time curve from zero to infinity of olaparib

AUC0-t of Olaparib
Part A: pre-dose, 0.25, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72 and 96 hours post-dose

Area under plasma concentration-time curve from zero to the last measurable time point of olaparib

Tmax of Olaparib
Part A: pre-dose, 0.25, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72 and 96 hours post-dose

Time to reach maximum plasma concentration of olaparib

Vz/F of Olaparib
Part A: pre-dose, 0.25, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72 and 96 hours post-dose

Apparent volume of distribution of olaparib

CL/F of Olaparib
Part A: pre-dose, 0.25, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72 and 96 hours post-dose

Apparent plasma clearance of olaparib

CLR of Olaparib
Part A: Day 1, 0-12 hours and 12-24 hours post-dose

Renal clearance of olaparib, calculated as the ratio of amount of drug excreted over 24 hours to AUC0-24

t1/2 of Olaparib
Part A: pre-dose, 0.25, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72 and 96 hours post-dose

Terminal half-life of olaparib

Pharmacokinetics of olaparib by assessment of area under the plasma concentration time curve from zero to the last measurable time point, AUC0-t, if AUC is not adequately estimable).
Blood samples are collected on Day 1& Day 9 at pre-dose, 0.25 , 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours post olaparib dose Part A. Part B:Day 5 at pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, and 12 hours post dose

Rate and extent of absorption of olaparib following single (Part A) and multiple (Part B) oral doses of olaparib tablet formulation by assessment of area under the plasma concentration time curve from zero to the last measurable time point, (AUC0-t)

Secondary Endpoints

Pharmacokinetics of olaparib by assessment of time to reach maximum plasma concentration for olaparib (tmax).
Blood samples are collected on olaparib dosing days (Day 1 and 14) at pre-dose, 0.25 , 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours post olaparib dose Part A.
Pharmacokinetics of olaparib by assessment of olaparib area under the plasma concentration time curve from zero to the last measurable time point (AUC0-τ).
Blood samples are collected on olaparib dosing days (Day 1 and 14) at pre-dose, 0.25 , 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours post olaparib dose Part A.
Pharmacokinetics of olaparib by assessment of olaparib apparent clearance (CL/F).
Blood samples are collected on olaparib dosing days (Day 1 and 14) at pre-dose, 0.25 , 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours post olaparib dose Part A.
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeOTHER

Treatment Arms

ArmTypeDescription
Normal hepatic functionOTHERPatients with: (i) negative result for serum hepatitis B surface antigen and hepatitis C antibody (ii) total bilirubin ≤1.5 x institutional upper limit of normal (ULN), albumin and prothrombin time within normal limits and must not have ascites (unless related to disease under study) or encephalopathy (iii) aspartate aminotransferase or serum glutamic oxaloacetic transaminase (AST), alanine aminotransferase or serum glutamic pyruvic transaminase (ALT) ≤2.5 x institutional ULN unless liver metastases are present in which case it must be ≤5 x ULN
Mild hepatic impairmentOTHERAs defined by the Child-Pugh Classification System.
Moderate hepatic impairmentOTHERAs defined by the Child-Pugh Classification System.
Olaparib alone, olaparib+rifampicinEXPERIMENTALSequential treatments of olaparib alone followed by olaparib+rifampicin, with a washout period inbetween.
Normal renal functionOTHERPatients with calculated serum creatinine clearance ≥81 mL/min (using Cockcroft-Gault equation).
Mild renal impairmentOTHERPatients with calculated serum creatinine clearance 51-80 mL/min (using Cockcroft-Gault equation).
Moderate renal impairmentOTHERPatients with calculated serum creatinine clearance 31-50 mL/min (using Cockcroft-Gault equation).
Olaparib alone, olaparib+itraconozoleEXPERIMENTALSequential treatments of olaparib alone followed by olaparib+itraconazole, with a washout period in between.

Interventions

NameTypeDescription
Olaparib tablet dosingDRUGPart A - single 300mg oral dose olaparib (administered as 2x150mg tablets) Part B - 300mg oral dose olaparib (administered as 2x150mg tablets) bd
Pharmacokinetic samplingPROCEDUREBlood sampling to measure olaparib, rifampicin and 4β-hydroxycholesterol
RifampicinDRUGRifampicin (CYP inducer) 600mg taken once daily from Day 5 to Day 14 (Part A)
ItraconazoleDRUGItraconazole 200mg od Part A days 5 to 11 only
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Eligibility Criteria

Age Range18 Years to 130 Years
SexALL
Healthy VolunteersNo
Study Sites12

Inclusion criteria:- For inclusion in the study as a patient with hepatic impairment, the following criterion must be met: 1. Patients must have stable mild hepatic impairment (as defined by Child-Pugh classification), for at least 1 month prior to the start of the study or stable moderate hepatic...

Countries:CzechiaFranceNetherlandsSouth KoreaUnited KingdomBelgiumDenmark
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Competitive Landscape -Other Solid Tumors 10 trials (matched to "Solid Tumours")

Frequently asked questions about Olaparib dosing

What is Olaparib tablet dosing?

Olaparib tablet dosing refers to the oral tablet formulation of olaparib studied in Phase 1 pharmacokinetic trials in patients with advanced solid tumours. These trials examined how the tablet is absorbed and processed under different conditions, including co-administration with other drugs and in patients with impaired kidney or liver function.

What does Olaparib target?

Olaparib targets PARP1, PARP2, and PARP3, a family of enzymes involved in DNA repair. It acts as an inhibitor of these targets. By inhibiting PARP enzymes, olaparib interferes with the DNA repair process in tumour cells, which is the basis of its investigation in advanced solid tumours.

Who is developing Olaparib?

Olaparib is developed by AstraZeneca PLC, which trades under the ticker AZN. The company sponsored the Phase 1 clinical trials evaluating olaparib tablet dosing in patients with advanced solid tumours.

What phase is Olaparib in?

Olaparib tablet dosing has been studied in Phase 1 clinical trials. Four Phase 1 trials in advanced solid tumours have been completed, with no active trials ongoing. The trials enrolled a total of 204 patients across multiple countries including Belgium, the Netherlands, the United Kingdom, Denmark, France, and South Korea.

What clinical trials is Olaparib in?

Four completed Phase 1 trials evaluated olaparib tablet dosing: NCT01929603 assessed the effect of rifampicin on olaparib blood levels; NCT01900028 examined itraconazole's effect on olaparib pharmacokinetics and QT interval; NCT01894256 studied olaparib in patients with normal or impaired kidney function; and NCT01894243 assessed olaparib in patients with normal liver function or mild to moderate liver impairment.

Is Olaparib the same as Olaparib tablet dosing?

Yes, Olaparib tablet dosing is an alternative name for olaparib when referring to the oral tablet formulation. The Phase 1 trials listed under this name investigated the pharmacokinetics, safety, and drug interaction profile of the olaparib tablet in patients with advanced solid tumours.