Study of AZD2014 and Palbociclib in Patients With Estrogen Receptor Positive (ER+) Metastatic Breast Cancer
PASTOR
A Phase I/II Multicenter Study of the Combination of AZD2014 and Palbociclib on a Background of Hormonal Therapy in Patients With Locally Advanced/Metastatic Estrogen Receptor Positive Breast Cancer Comprising a Safety, Pharmacokinetic and Preliminary Efficacy Evaluation Followed by a Randomized, Double-Blind, Placebo-controlled, Parallel Group Extension (PASTOR).
3 other identifiers
interventional
54
2 countries
7
Brief Summary
This dose finding/extension study was designed originally to consist of three parts: Part A was intended to identify the MTD of the AZD2014/ palbociclib combination on a background of fulvestrant (referred to as the triplet) in postmenopausal women with locally advanced/ metastatic estrogen receptor positive (ER+) breast cancer. Part B was to further characterize safety, tolerability, PK, and preliminary efficacy in single-arm dose expansion groups. Part C was to be a Phase 2, randomized, double-blind, extension comparing the triplet and doublet combinations. Part C was deleted from the protocol and was not performed.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_1
Started Dec 2015
Longer than P75 for phase_1
7 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 5, 2015
CompletedFirst Posted
Study publicly available on registry
November 9, 2015
CompletedStudy Start
First participant enrolled
December 7, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 30, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
November 23, 2023
CompletedJune 6, 2024
June 1, 2024
2.3 years
November 5, 2015
June 4, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Parts A and B: Number of adverse events experienced by patients
Safety and tolerability assessed through the incidence of adverse events.
Approximately 16 months
Secondary Outcomes (15)
Part B: Progression Free Survival (PFS)
Assessed every 8 weeks for approximately 16 months
Parts A and B: Best Objective Response (BOR)
Assessed every 8 weeks for approximately 16 months
Parts A and B: Objective Response Rate (ORR)
Assessed every 8 weeks for approximately 16 months
Part B: Duration of Response (DoR)
Assessed every 8 weeks for approximately 16 months
Part B: Overall Survival (OS)
Approximately 24 months
- +10 more secondary outcomes
Study Arms (2)
Triplet Combination (Dose Finding)
EXPERIMENTALPhase 1 triplet dose finding phase in 3-6 patients per cohort - approximately 30 patients depending on emerging data to determine the maximum tolerated dose (MTD) of the triplet.
Triplet Combination (Dose Expansion)
EXPERIMENTALAdditional patients will be enrolled at the dose determined in Part A.
Interventions
The triplet combination will be comprised of AZD2014 + palbociclib + fulvestrant.
cyclin dependent kinase inhibitor
Fulvestrant hormonal therapy as background
Eligibility Criteria
You may qualify if:
- Signed and dated written informed consent prior to any mandatory study specific procedures, sampling and analyses.
- Signed and dated written informed consent for tumour biopsies. If the tumour is found not to be safely accessible the biopsy will not be taken. Accessible lesions are defined as those which are biopsiable and amenable to repeat biopsy, unless clinically contraindicated. In this case the patient will remain in the study and there will be no penalty or loss of benefit to the patient and they will not be excluded from other aspects of the study.
- Postmenopausal women aged ≥ 18 years
- Negative pregnancy test prior to dosing and willing to use a highly effective method of contraception for the duration of the study and for 90 days after the last dose of IP if they are under 50 unless they have medically confirmed irreversible premature ovarian failure, bilateral oophorectomy, bilateral salpinectomy, or complete or partial hysterectomy.
- Highly effective methods of contraception are:
- Use of oral, injected or implanted hormonal methods of contraception which inhibit ovulation, either estrogen and progestogen containing intravaginal, transdermal) or only progesterone containing (oral, injectable, implantable)
- Placement of an intrauterine device (IUD or intrauterine system (IUS)
- True abstinence
- Bilateral tubal ligation
- Vasectomised partner
- World Health Organisation/Eastern Cooperative Oncology Group (ECOG) performance status of patient is 0-1 with no deterioration over the previous 2 weeks and minimum life expectancy of 12 weeks.
- Histologically or cytologically proven diagnosis of breast cancer with evidence of locally advanced or metastatic disease, not amenable to resection or radiation therapy with curative intent.
- Documentation of estrogen receptor positive (ER+) breast cancer based on most recent tumour biopsy (unless bone-only disease).
- Documented human epidermal growth factor receptor 2 negative (HER2-) tumor on most recent tumor biopsy.
- Where regionally permitted, all patients must agree to provide if available a formalin-fixed paraffin embedded (FFPE) tissue biopsy sample taken at the time of presentation with recurrent or metastatic disease.
- +10 more criteria
You may not qualify if:
- Prior chemotherapy, biological therapy, radiation therapy, or immunotherapy, androgens, thalidomide, other anticancer agents, investigational drug or corticosteroids within 14 days. Patients who received prior radiotherapy to \>= 25% of bone marrow are not eligible independent of when it was received. Patients is not eligible if there are unresolved toxicities from prior therapy \> CTCAE grade 1 at the start of study treatment with the exception of alopecia.
- Exposure to potent or moderate inhibitors or inducers of CYP3A4/5, Pgp (MDR1) or BCRP within stated washout periods.
- Exposure to sensitive or narrow therapeutic range substrates of drug transporters OATP1B1, OATP1B3, MATE1 and MATE2K within wash-out period (5 x elimination half-life).
- Exposure to proton pump inhibitors within wash-out period (5 x elimination half-life).
- \. Previous AZD2014, AZD8055 or other dual mTORC1/2 inhibitor
- In Part B only: Prior treatment with CDK4/6, or everolimus or any PI3K-mTOR pathway
- \. Known active uncontrolled or symptomatic CNS metastases, carcinomatous meningitis, or leptomeningeal disease. Patients with a history of CNS metastases or cord compression are eligible if definitively treated and clinically stable and off anticonvulsants and steroids for at least 4 weeks. Patients are not eligible if there is spinal cord compression and/or brain metastases, unless asymptomatic or treated and stable and off steroids for at least 4 weeks.
- \. Evidence of severe or uncontrolled systemic diseases such as:
- Severe hepatic impairment
- Interstitial lung disease (bilateral, diffuse, parenchymal lung disease)
- Current unstable or uncompensated respiratory or cardiac conditions
- Uncontrolled hypertension
- Active bleeding diatheses
- Any active infection
- \. Other malignancy within 3 years, except adequately treated basal cell or squamous cell skin cancer, or carcinoma in situ of the cervix
- +40 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- AstraZenecalead
Study Sites (7)
Research Site
Encinitas, California, 92024, United States
Research Site
Sarasota, Florida, 34232, United States
Research Site
Detroit, Michigan, 48201, United States
Research Site
Nashville, Tennessee, 37203, United States
Research Site
Milwaukee, Wisconsin, 53226, United States
Research Site
Liverpool, L7 8XP, United Kingdom
Research Site
London, W1G 6AD, United Kingdom
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Anja Wiliams
Sarah Cannon Research Institute UK
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Masking Details
- Study was originally designed as randomized and double blinded. Currently (CSP v.8.0 of 14-Dec-2021) no masking and no randomization is planned.
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 5, 2015
First Posted
November 9, 2015
Study Start
December 7, 2015
Primary Completion
March 30, 2018
Study Completion
November 23, 2023
Last Updated
June 6, 2024
Record last verified: 2024-06
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP
- Time Frame
- AstraZeneca will meet or exceed data availability as per the commitments made to the EFPIA Pharma Data Sharing Principles. For details of our timelines, please rerefer to our disclosure commitment at: https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.
- Access Criteria
- When a request has been approved AstraZeneca will provide access to the de-identified individual patient-level data in an approved sponsored tool . Signed Data Sharing Agreement (non-negotiable contract for data accessors) must be in place before accessing requested information. Additionally, all users will need to accept the terms and conditions of the SAS MSE to gain access. For additional details, please review the Disclosure Statements at: https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.
Qualified researchers can request access to anonymized individual patient-level data from AstraZeneca group of companies sponsored clinical trials via the request portal. All requests will be evaluated as per the AZ disclosure commitment: https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure