Description:
The purpose of this study is to investigate the safety and efficacy of different doses and
schedules of AZD5363, when in combination with paclitaxel, in treatment of patients with
advanced or metastatic breast cancer. Also to investigate a selected dose and schedule of
AZD5363 in combination with paclitaxel vs. paclitaxel in combination with placebo in
treatment of patients with estrogen receptor-positive advanced or metastatic breast cancer,
including a subgroup who have the phosphoinositide-3-kinase, catalytic, alpha polypeptide
(PIK3CA) tumour mutation.
Title
- Brief Title: Investigating Safety, Tolerability and Efficacy of AZD5363 When Combined With Paclitaxel in Breast Cancer Patients
- Official Title: A Phase I/II Study of AZD5363 Combined With Paclitaxel in Patients With Advanced or Metastatic Breast Cancer. Comprising a Safety Run-In and a Placebo-controlled Randomised Expansion in ER+ve Patients Stratified by PIK3CA Mutation Status
Clinical Trial IDs
- ORG STUDY ID:
D3610C00002
- SECONDARY ID:
2011-006312-31
- NCT ID:
NCT01625286
Conditions
- Advanced or Metastatic Breast Cancer
- ER+ve Advanced or Metastatic Breast Cancer
Interventions
Drug | Synonyms | Arms |
---|
AZD5363 when combined with weekly paclitaxel. | | Part A: Intermittent schedule (2/5) |
AZD5363 when combined with weekly paclitaxel. | | Part A: Intermittent schedule (4/3) |
AZD5363when combined with weekly paclitaxel. | | Part B: AZD5363 combined with paclitaxel |
A placebo in combination with weekly paclitaxel. | | Part B: paclitaxel combined with placebo |
Purpose
The purpose of this study is to investigate the safety and efficacy of different doses and
schedules of AZD5363, when in combination with paclitaxel, in treatment of patients with
advanced or metastatic breast cancer. Also to investigate a selected dose and schedule of
AZD5363 in combination with paclitaxel vs. paclitaxel in combination with placebo in
treatment of patients with estrogen receptor-positive advanced or metastatic breast cancer,
including a subgroup who have the phosphoinositide-3-kinase, catalytic, alpha polypeptide
(PIK3CA) tumour mutation.
Detailed Description
This is a Phase I/II multicentre, study investigating the safety, tolerability and efficacy
of a twice-daily oral formulation of AZD5363 when combined with a weekly intravenous
paclitaxel infusion in patients with advanced or metastatic breast cancer. Study treatment is
given in 28-day cycles, comprising three weeks on-therapy followed by one week off-therapy.
The study will be conducted in two parts:
Part A. Approximately 40 patients will be recruited to this Phase I multiple ascending-dose
safety run-in evaluation of each of two intermittent dosing schedules (2 days per week or 4
days per week) of AZD5363 given in combination with weekly paclitaxel. The study population
is female patients, 18 years or older, with advanced or metastatic breast cancer.
The purpose of Part A is to assess the comparative safety, tolerability, pharmacokinetics and
preliminary efficacy of both schedules to determine one dose and schedule of AZD5363 to take
forward to study Part B in combination with weekly paclitaxel.
Part A assessments will be made in dose-escalating cohorts of 3 to 6 patients to determine a
recommended dose in each of the schedules. A total of 6 patients must be evaluated at a
selected dose level for it to be confirmed as the recommended dose. All dose evaluations and
recommendations will be conducted by a Safety Review Committee.
Part A Patients will undergo assessments up to to withdrawal from the study or to
discontinuation of study therapy.
Part B. A minimum of 100 patients will be recruited to this Phase II double-blind,
placebo-controlled, stratified and randomised evaluation of two treatment regimens: AZD5363
(at a dose selected and schedule from Part A) in combination with weekly paclitaxel vs.
weekly paclitaxel plus placebo. The study population is female patients with Estrogen
Receptor Positive advanced or metastatic breast cancer; of which approximately 50 will have
the phosphoinositide-3-kinase, catalytic, alpha polypeptide (PIK3CA) mutation.
Part B patients will be stratified by PIK3CA tumour mutation status as: tumour mutation
positive or tumour mutation not-detected. Under each stratum patients will be randomised to
receive either paclitaxel + AZD5363 or paclitaxel + placebo.
The purpose of Part B is to assess relative efficacy of both active and placebo regimens by
comparison of: progression-free survival, overall survival, tumour response, safety and
tolerability in the overall ER+ve advanced or metastatic breast cancer population, and in a
subgroup of these patients with the PIK3CA tumour mutation. Patient safety and therapy
tolerability will be monitored by an independent Safety Review Committee throuighout the
course of Part B.
Part B patients will be followed for assessment of overall survival, or to withdrawal from
the study.
Trial Arms
Name | Type | Description | Interventions |
---|
Part A: Intermittent schedule (2/5) | Experimental | See intervention description below. | - AZD5363 when combined with weekly paclitaxel.
|
Part A: Intermittent schedule (4/3) | Experimental | See intervention description below. | - AZD5363 when combined with weekly paclitaxel.
|
Part B: AZD5363 combined with paclitaxel | Active Comparator | See intervention description below. | - AZD5363when combined with weekly paclitaxel.
|
Part B: paclitaxel combined with placebo | Placebo Comparator | See intervention description below. | - A placebo in combination with weekly paclitaxel.
|
Eligibility Criteria
Inclusion Criteria:
- Provision of informed consent.
- Female patient.
- Aged at least 18 years.
- Histological or cytological confirmation of breast cancer with evidence of advanced or
metastatic disease (must be ER+ve, HER2-ve, in Part B).
- World Health Organisation (WHO) performance status 0-1 with no deterioration over the
previous 2 weeks and minimum life expectancy of 12 weeks.
Exclusion Criteria:
- Clinically significant abnormalities of glucose metabolism.
- Spinal cord compression or brain metastases unless asymptomatic, treated and stable
(not requiring steroids).
- Evidence of severe or uncontrolled systemic diseases, including active bleeding
diatheses or active infections including hepatitis B, C and HIV.
- Any prior exposure to agents which inhibit AKT as the primary pharmacological
activity.
- Part A: more than two prior courses of chemotherapy (including taxanes) for advanced
or metastatic breast cancer.
Part B: any prior chemotherapy for advanced or metastatic breast cancer.
Maximum Eligible Age: | 130 Years |
Minimum Eligible Age: | 18 Years |
Eligible Gender: | Female |
Healthy Volunteers: | No |
Primary Outcome Measures
Measure: | Dose-limiting Toxicity (DLT) Events - Part A |
Time Frame: | During Part A DLT evaluation period (Cycle 1, up to 28 days) |
Safety Issue: | |
Description: | An Adverse Event (AE) or laboratory abnormality considered to be related to study drug, that starts at any time during the DLT evaluation period (Cycle 1) and is dose limiting |
Secondary Outcome Measures
Measure: | Change in Tumour Size at 12 Weeks |
Time Frame: | RECIST tumour assessments every 12 weeks |
Safety Issue: | |
Description: | Percentage change from baseline to week 12 in sum of longest diameters of target lesions as defined by Response Evaluation Criteria In Solid Tumours (RECIST version 1.1). Based on patients with measurable disease who had sufficient data available to either calculate or impute a change at 12 weeks |
Measure: | Objective Response Rate (ORR) at Week 12 |
Time Frame: | RECIST tumour assessments every 12 weeks |
Safety Issue: | |
Description: | Percentage of patients who have at least one visit response of Complete Response or Partial Response prior to any evidence of progression at week 12 as defined by Response Evaluation Criteria In Solid Tumours (RECIST version 1.1) for target lesions (TL) and assessed by MRI or CT: Partial Response (PR), >=30% decrease in the sum of the longest diameter of target lesions; Complete Response (CR), disappearance of all target lesions, any pathological lymph nodes selected as TLs must have a reduction in short axis to <10mm; Objective Response Rate (ORR) = CR + PR |
Measure: | Best Objective Response (BOR) |
Time Frame: | From date of randomisation, assessed every 12 weeks (median total treatment duration AZD5363 = 325.5 days; Placebo = 245 days). |
Safety Issue: | |
Description: | Number of patients, taking their BOR, which is their best objective tumour response based on RECIST measurements throughout the whole study as defined by Response Evaluation Criteria In Solid Tumours (RECIST version 1.1) for target lesions (TL) and assessed by MRI or CT: Partial Response (PR), >=30% decrease in the sum of the longest diameter of target lesions; Complete Response (CR), disappearance of all target lesions, any pathological lymph nodes selected as TLs must have a reduction in short axis to <10mm. |
Measure: | Overall Objective Response Rate |
Time Frame: | From date of randomisation, assessed every 12 weeks (median total treatment duration AZD5363 = 325.5 days; Placebo = 245 days). |
Safety Issue: | |
Description: | Percentage of patients, taking their best objective tumour response based on RECIST measurements throughout the whole study as defined by Response Evaluation Criteria In Solid Tumours (RECIST version 1.1) for target lesions (TL) and assessed by MRI or CT: Partial Response (PR), >=30% decrease in the sum of the longest diameter of target lesions; Complete Response (CR), disappearance of all target lesions, any pathological lymph nodes selected as TLs must have a reduction in short axis to <10mm. Overall Response Rate (ORR) = CR + PR |
Measure: | Number of Subjects Without Progression Disease at Week 12 - Part A |
Time Frame: | up to 12 weeks |
Safety Issue: | |
Description: | Percentage of patients with a 12 week visit response of CR, PR or SD (as defined by RECIST 1.1) with no evidence of previous progression as defined by Response Evaluation Criteria In Solid Tumours (RECIST version 1.1) for target lesions (TL) and assessed by MRI or CT: Partial Response (PR), >=30% decrease in the sum of the longest diameter of target lesions; Complete Response (CR), disappearance of all target lesions, any pathological lymph nodes selected as TLs must have a reduction in short axis to <10mm. |
Measure: | Duration of Response (DOR) - Part B |
Time Frame: | From date of randomisation, assessed every 12 weeks (median total treatment duration AZD5363 = 325.5 days; Placebo = 245 days). |
Safety Issue: | |
Description: | Date of first documentation of response (Complete Response/Partial Response) until the date of disease progression as defined by Response Evaluation Criteria In Solid Tumours (RECIST version 1.1) for target lesions (TL) and assessed by MRI or CT: Partial Response (PR), >=30% decrease in the sum of the longest diameter of target lesions; Complete Response (CR), disappearance of all target lesions, any pathological lymph nodes selected as TLs must have a reduction in short axis to <10mm.. If a subject does not progress following a response, then their DOR will use the PFS censoring time. |
Measure: | Durable Response Rate (DRR) - Part B |
Time Frame: | From date of randomisation, assessed every 12 weeks (median total treatment duration AZD5363 = 325.5 days; Placebo = 245 days). |
Safety Issue: | |
Description: | Percentage of patients who have a Complete Response (CR) or Partial Response (PR) lasting continuously for at least 24 weeks as defined by Response Evaluation Criteria In Solid Tumours (RECIST version 1.1) for target lesions (TL) and assessed by MRI or CT: PR, >=30% decrease in the sum of the longest diameter of target lesions; CR, disappearance of all target lesions, any pathological lymph nodes selected as TLs must have a reduction in short axis to <10mm. |
Measure: | Overall Survival - Part B |
Time Frame: | From date of randomisation, assessed every 12 weeks, up until the time of final statistical analysis. (median total treatment duration AZD5363 = 325.5 days; Placebo = 245 days). |
Safety Issue: | |
Description: | The interval between the date of randomisation and the date of patient death due to any cause. All Part B patients were analysed, number of deaths is presented. |
Details
Phase: | Phase 1/Phase 2 |
Primary Purpose: | Interventional |
Overall Status: | Active, not recruiting |
Lead Sponsor: | AstraZeneca |
Trial Keywords
- advanced breast cancer,
- metastatic breast cancer,
- ER+ve breast cancer,
- Estrogen receptor positive breast cancer,
- PIK3CA mutated advanced or metastatic breast cancer
- AKT inhibitor
Last Updated
June 11, 2021