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Investigating Safety, Tolerability, Efficacy and PK of Olaparib in Paediatric Patients With Solid Tumours

PHASE1RECRUITING

A study to find out whether olaparib is safe and well tolerated when administered to children and adolescents with solid tumours.

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Study details:

A Phase I open-label, multicentre study to determine the RP2D of olaparib monotherapy in the paediatric population, and to evaluate the safety, tolerability, PK, PDx and preliminary efficacy of olaparib monotherapy in paediatric patients from ≥6 months to \<18 years of age at enrolment, with relapsed or refractory solid or primary CNS tumours (excluding lymphoid malignancies) for whom there are no standard treatment options. It is anticipated that eligible patients fulfilling all of the inclusion criteria and none of the exclusion criteria, will include but will not be limited to those with osteosarcoma, rhabdomyosarcoma, non-rhabdomyosarcoma soft tissue sarcoma, Ewing Sarcoma, neuroblastoma, medulloblastoma and glioma.

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Eligibility criteria

Researchers look for people who fit a certain description, called eligibility criteria. See if you qualify.

Inclusion criteria

  • Provision of Informed Consent
  • Male and female patients who are ≥6 months to <18 years of age at consent
  • Pathologically confirmed relapsed or refractory solid or primary CNS tumours (excluding lymphoid malignancies), with a HRR deficiency/gene mutation, and for whom there are no standard treatment options. Eligible patients may include but not be limited to those with osteosarcoma, rhabdomyosarcoma, non rhabdomyosarcoma soft tissue sarcoma, Ewing Sarcoma, neuroblastoma, medulloblastoma and glioma
  • For dose finding phase only: recruitment will be open to all patients with HRR deficiency, based on a local test. For the signal identification phase: recruitment will be open only to patients with documented evidence of a deleterious or suspected deleterious germline or tumour HRR gene mutation that meets the AZ HRR rules
  • A formalin fixed, paraffin embedded (FFPE) tumour sample from the primary cancer (all patients) suitable for central HRR testing and a blood sample (patients ≥2 years old) for central germline BRCA testing must be provided for each patient
  • For all non-neuroblastoma tumours, patients must have at least 1 radiographical assessable lesion (measurable and/or non-measurable). For neuroblastoma tumours, patients must have radiographical assessable disease with at least 1 lesion (measurable and/or non measurable) OR disease evidenced by uptake of meta-iodobenzylguanidine- (MIBG) or fluorodeoxyglucose positron emission tomography (FDG-PET) scans
  • Adequate performance status, organ, and marrow function and adequate weight to obtain blood samples for both safety laboratory assessments and PK analysis.
  • Ability to swallow tablets
  • Exclusion criteria

  • Patients with MDS/AML or with features suggestive of MDS/AML
  • Patients unable to swallow orally administered medication
  • Unresolved toxicity from previous anticancer therapy
  • Unstable or untreated CNS disease (i.e., symptomatic uncontrolled brain metastases or untreated spinal cord compression)
  • Previous treatment with a PARP inhibitor, including olaparib
  • Receipt of any radiotherapy for cancer treatment (except for palliative reasons) within 30 days prior to first dose of study treatment or receipt of last dose of an approved (marketed) anticancer therapy (chemotherapy, targeted therapy, biologic therapy, monoclonal antibodies, etc) within 21 days prior to the first dose of study treatment
  • Concomitant use of known strong or moderate CYP3A inhibitors or concomitant use of known strong or moderate CYP3A inducers
  • Whole blood transfusions in the last 120 days prior to screening (packed red blood cells and platelet transfusions are acceptable)
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    Eligibility

    Age eligible for study : 0 and older

    Healthy volunteers accepted : No

    Gender eligible for study: All

    Things to know

    Study dates

    Study start: 2020-01-14

    Primary completion: 2024-10-31

    Study completion finish: 2024-10-31

    study type

    Study type

    TREATMENT

    phase

    Phase

      PHASE1

    trial

    Trial ID

    NCT04236414

    Intervention or treatment

    DRUG: Olaparib

    Conditions

    • Solid Tumours

    Find a site

    Closest Location:

    Research Site

    Research sites nearby

    Select from list below to view details:

    • Research Site

      Clayton, Not Specified, Australia

    • Research Site

      Nedlands, Not Specified, Australia

    • Research Site

      Randwick, Not Specified, Australia

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    Study Plan

    This section provides details of the study plan, including how the study is designed and what the study is measuring.

    How is the study designed?

    Participant Group/ArmIntervention/Treatment
    EXPERIMENTAL: Cohort A: ≥12 to <18 years
    • Patients will receive a single dose of olaparib on Day 1, followed by initiation of bd continuous dosing from Day 2 onwards. Olaparib tablets should be taken at the same time each day (morning and evening), approximately 12 hours apart with one glass of water. The tablets should be swallowed whole and not chewed, crushed, dissolved or divided. Olaparib tablets can be taken with or without food, with the exception of Day 8 (a PK sampling day) when patients aged ≥3 years old receiving tablets should take olaparib at least 1 hour after food and should refrain from eating for up to 2 hours afterwards.
    DRUG: Olaparib
    • Patients will receive a single dose of olaparib on Day 1, followed by initiation of bd continuous dosing from Day 2 onwards. Olaparib should be taken at the same time each day (morning and evening), approximately 12 hours apart with one glass of water. The tablets should be swallowed whole and not chewed, crushed, dissolved or divided. 25 and 100 mg tablet strengths available for ages ≥3 to \<18 years. AAF available for ≥0.5 to \<6 years; The AAF is a sprinkle capsule formulation, available in dose strengths of 15 mg and 19.5 mg. The sprinkle capsules contain 1.5 mg granules which are to be dispersed onto a food vehicle prior to dosing.
    EXPERIMENTAL: Cohort B: ≥3 to <12 years
    • Patients will receive a single dose of olaparib on Day 1, followed by initiation of bd continuous dosing from Day 2 onwards. Olaparib tablets should be taken at the same time each day (morning and evening), approximately 12 hours apart with one glass of water. The tablets should be swallowed whole and not chewed, crushed, dissolved or divided. Olaparib tablets can be taken with or without food, with the exception of Day 8 (a PK sampling day) when patients aged ≥3 years old receiving tablets should take olaparib at least 1 hour after food and should refrain from eating for up to 2 hours afterwards.
    DRUG: Olaparib
    • Patients will receive a single dose of olaparib on Day 1, followed by initiation of bd continuous dosing from Day 2 onwards. Olaparib should be taken at the same time each day (morning and evening), approximately 12 hours apart with one glass of water. The tablets should be swallowed whole and not chewed, crushed, dissolved or divided. 25 and 100 mg tablet strengths available for ages ≥3 to \<18 years. AAF available for ≥0.5 to \<6 years; The AAF is a sprinkle capsule formulation, available in dose strengths of 15 mg and 19.5 mg. The sprinkle capsules contain 1.5 mg granules which are to be dispersed onto a food vehicle prior to dosing.
    EXPERIMENTAL: Cohort C: ≥6 months to <6 years
    • Patients will receive a single dose of olaparib on Day 1, followed by initiation of bd continuous dosing from Day 2 onwards. Olaparib should be taken at the same time each day (morning and evening), approximately 12 hours apart. Patients in Cohort C will receive a predetermined number of each sprinkle capsule strength (15 and 19.5 mg,) to make up the required dose. Olaparib sprinkle capsules will be administered to the child by the parent/caregiver. Patients in Cohort C are not required to fast including PK sampling days. The dispensed granules should be swallowed whole and not chewed, crushed, dissolved or divided, and should be consumed within 30 minutes of preparation.
    DRUG: Olaparib
    • Patients will receive a single dose of olaparib on Day 1, followed by initiation of bd continuous dosing from Day 2 onwards. Olaparib should be taken at the same time each day (morning and evening), approximately 12 hours apart with one glass of water. The tablets should be swallowed whole and not chewed, crushed, dissolved or divided. 25 and 100 mg tablet strengths available for ages ≥3 to \<18 years. AAF available for ≥0.5 to \<6 years; The AAF is a sprinkle capsule formulation, available in dose strengths of 15 mg and 19.5 mg. The sprinkle capsules contain 1.5 mg granules which are to be dispersed onto a food vehicle prior to dosing.
    EXPERIMENTAL: Signal identification
    • A secondary analysis of response in patients recruited into the signal identification phase will be conducted. Patients included in this analysis must have documented evidence of a deleterious or suspected deleterious germline or tumour HRR gene mutation. A minimum of 10 patients across age and dose cohorts with deleterious or suspected deleterious HRR mutations will be enrolled.
    DRUG: Olaparib
    • Patients will receive a single dose of olaparib on Day 1, followed by initiation of bd continuous dosing from Day 2 onwards. Olaparib should be taken at the same time each day (morning and evening), approximately 12 hours apart with one glass of water. The tablets should be swallowed whole and not chewed, crushed, dissolved or divided. 25 and 100 mg tablet strengths available for ages ≥3 to \<18 years. AAF available for ≥0.5 to \<6 years; The AAF is a sprinkle capsule formulation, available in dose strengths of 15 mg and 19.5 mg. The sprinkle capsules contain 1.5 mg granules which are to be dispersed onto a food vehicle prior to dosing.

    What is the study measuring?

    Primary outcome

    Primary Outcome MeasurePrimary Outcome DescriptionPrimary Outcome Time Frame
    Dose limiting toxicity [DLTs]DLT - Dose limiting toxicity28 days
    Safety profileNumber of patients with adverse eventsUntil 30 days after last dose

    Secondary outcome

    Secondary Outcome MeasureSecondary Outcome DescriptionSecondary Outcome Time Frame
    Apparent total clearance of the drug from plasma at steady state after oral administration [CLss/F]Olaparib levels in mcg/mLThe pre-dose sample should be collected within 12±0.5 hours of the Day 7 evening dose of olaparib, prior to the Day 8 morning dose and within 12±1 hours of the Day 28 evening olaparib dose, prior to the Day 29 morning dose.
    Maximum plasma concentration at steady state [Css,max]Olaparib levels in mcg/mLThe pre-dose sample should be collected within 12±0.5 hours of the Day 7 evening dose of olaparib, prior to the Day 8 morning dose and within 12±1 hours of the Day 28 evening olaparib dose, prior to the Day 29 morning dose.
    Minimum plasma concentration at steady state [Css, min]Olaparib levels in mcg/mLThe pre-dose sample should be collected within 12±0.5 hours of the Day 7 evening dose of olaparib, prior to the Day 8 morning dose and within 12±1 hours of the Day 28 evening olaparib dose, prior to the Day 29 morning dose.
    Time to maximum plasma concentration at steady state [tss,max]Olaparib levels in mcg/mLThe pre-dose sample should be collected within 12±0.5 hours of the Day 7 evening dose of olaparib, prior to the Day 8 morning dose and within 12±1 hours of the Day 28 evening olaparib dose, prior to the Day 29 morning dose.
    Area under the curve at steady state [AUCss]Olaparib levels in mcg/mLThe pre-dose sample should be collected within 12±0.5 hours of the Day 7 evening dose of olaparib, prior to the Day 8 morning dose and within 12±1 hours of the Day 28 evening olaparib dose, prior to the Day 29 morning dose.
    Dose normalised area under the curve at steady state [dose normalised AUCss]Olaparib levels in mcg/mLThe pre-dose sample should be collected within 12±0.5 hours of the Day 7 evening dose of olaparib, prior to the Day 8 morning dose and within 12±1 hours of the Day 28 evening olaparib dose, prior to the Day 29 morning dose.
    Area under the curve at 0-8 hours [AUC(0-8)]Olaparib levels in mcg/mLThe pre-dose sample should be collected within 12±0.5 hours of the Day 7 evening dose of olaparib, prior to the Day 8 morning dose and within 12±1 hours of the Day 28 evening olaparib dose, prior to the Day 29 morning dose.
    Area under the curve from zero up to time t [AUC0-t]Olaparib levels in mcg/mLThe pre-dose sample should be collected within 12±0.5 hours of the Day 7 evening dose of olaparib, prior to the Day 8 morning dose and within 12±1 hours of the Day 28 evening olaparib dose, prior to the Day 29 morning dose.
    Dose normalised maximum plasma concentration at steady state [dose normalised Css,max]Olaparib levels in mcg/mLThe pre-dose sample should be collected within 12±0.5 hours of the Day 7 evening dose of olaparib, prior to the Day 8 morning dose and within 12±1 hours of the Day 28 evening olaparib dose, prior to the Day 29 morning dose.
    ORR as defined by Investigator-assessed RECIST v1.1, INRC or RANOORR - Objective response rate INRC - International Neuroblastoma Response Criteria RECIST - Response Evaluation Criteria in Solid tumours RANO - Response Assessment in Neuro-oncologyUp to 64 months
    DCR as defined by Investigator-assessed RECIST v1.1, INRC or RANODCR - Disease control rate INRC - International Neuroblastoma Response Criteria RECIST - Response Evaluation Criteria in Solid tumours RANO - Response Assessment in Neuro-oncologyUp to 64 months
    DoR as defined by Investigator-assessed RECIST v1.1, INRC or RANODoR - Duration of response INRC - International Neuroblastoma Response Criteria RECIST - Response Evaluation Criteria in Solid tumours RANO - Response Assessment in Neuro-oncologyUp to 64 months

    Frequently Asked Questions

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    References

    Clinical Trials Gov: Investigating Safety, Tolerability, Efficacy and PK of Olaparib in Paediatric Patients With Solid Tumours

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