AZD2014 and Fulvestrant in Patients With ER+ Advanced Metastatic Breast Cancer

February 6, 2026 updated by: AstraZeneca

A Phase I, Open-label, Multicentre, Study to Assess the Safety, Tolerability, Pharmacokinetics and Preliminary Efficacy of AZD2014 Administered Orally in Combination With Intramuscular (IM) Fulvestrant to Patients With Estrogen Receptor Positive (ER+) Advanced, Metastatic Breast Cancer

The purpose of this study is to assess safety and tolerability of AZD2014 when given in combination with Fulvestrant

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

A Phase I, Open-label, Multicentre, Study to Assess the Safety, Tolerability, Pharmacokinetics and Preliminary Efficacy of AZD2014 Administered Orally in Combination with Intramuscular (IM) Fulvestrant to Patients with Estrogen Receptor Positive (ER+) Advanced, Metastatic Breast Cancer.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
99

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Florida
      • Sarasota, Florida, United States, 34232
        • Research Site
    • Michigan
      • Detroit, Michigan, United States, 48201
        • Research Site
    • Oklahoma
      • Oklahoma City, Oklahoma, United States, 73104
        • Research Site
    • South Carolina
      • Greenville, South Carolina, United States, 29605
        • Research Site
    • Tennessee
      • Nashville, Tennessee, United States, 37203
        • Research Site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 100 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Provision of signed and dated written informed consent prior to any study specific procedures, sampling analysis
  • Aged at least 18
  • At least one lesion (measurable and/or non-measurable) that can be accurately assessed at baseline by computerised tomography (CT) magnetic resonance imaging (MRI) or plain X-ray and is suitable for repeated assessment
  • Histological or cytological confirmation of an ER+ advanced metastatic breast cancer tumour that is eligible for treatment with fulvestrant
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
  • Patients must have evidence of non-child-bearing potential.

Exclusion Criteria:

  • Prior chemotherapy, biological therapy, radiation therapy, androgens, thalidomide, immunotherapy, other anticancer agents, and any investigational agents within 14 days of starting study treatment (not including palliative radiotherapy at focal sites)
  • Major surgery within 4 weeks prior to entry to the study (excluding placement of vascular access), or minor surgery within 2 weeks of entry into the study.
  • Patients with severe cardiac condition of ischemia, impaired ventricular function and arrhythmias, evidence of severe or uncontrolled systemic or current unstable or uncompensated respiratory or cardiac conditions.
  • Patients with diabetes type 1 or uncontrolled type II (HbA1c > 8% assessed locally)

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?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: AZD2014 with Fulvestrant
Drug: AZD2014
Single dose followed by multiple dosing or twice daily dosing for 2 days folllowed by 5 days off each week, or twice daily dosing on the first and fourth day of the week
Drug: Fulvestrant
IM monthly after loading dose
Other Names:
  • faslodex

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Adverse Events
Time Frame: Up to 12 Months
Up to 12 Months
Adverse Events Leading to Dose Reduction of AZD2014
Time Frame: Up to 28 Days
Up to 28 Days
Clinically Important Changes in Haematology Parameters
Time Frame: Up to 12 Months
Up to 12 Months
Clinically Important Changes in Clinical Chemistry Parameters
Time Frame: Up to 12 Months
Up to 12 Months
Left Ventricular Ejection Fraction
Time Frame: 24 hours
24 hours
QTcF Over 24 Hours
Time Frame: 24 hours
24 hours
Post-Baseline Glucose Elevation
Time Frame: 28 Days
28 Days
Sitting Diastolic Blood Pressure
Time Frame: 28 Days
28 Days
Sitting Systolic Blood Pressure
Time Frame: 28 Days
28 Days
Respiratory Rate
Time Frame: 28 Days
28 Days
Heart Rate
Time Frame: 28 Days
28 Days
Body Temperature
Time Frame: 28 Days
28 Days
Oxygen Saturation
Time Frame: 28 Days
28 Days
AZD2014 Peak Plasma Concentration at Steady State (Cmax,ss) on Cycle 0 Days -5 to -1, Continuous Dosing, no Fulvestrant
Time Frame: 5 Days
5 Days
AZD2014 Area Under the Plasma Concentration Time Curve (AUC 0-12) Cycle 0 Days -5 to -1, Continuous Dosing, no Fulvestrant
Time Frame: 5 Days
5 Days
AZD2014 Area Under the Plasma Concentration Time Curve (AUC 0-24) Cycle 0 Days -5 to -1, Continuous Dosing, no Fulvestrant
Time Frame: 5 Days
5 Days
AZD2014 Area Under the Plasma Concentration Time Curve (AUC 0-t) Cycle 0 Days -5 to -1, Continuous Dosing, no Fulvestrant
Time Frame: 5 Days
5 Days
AZD2014 Area Under the Plasma Concentration Time Curve (AUC 0-∞) Cycle 0 Days -5 to -1, Continuous Dosing, no Fulvestrant
Time Frame: 5 Days
5 Days
AZD2014 Peak Plasma Concentration at Steady State (Cmax,ss) on Cycle 1 Day 15, BID Intermittent Dosing, With Fulvestrant
Time Frame: 15 Days
15 Days
Time to AZD2014 Peak Plasma Concentration at Steady State (Tmax,ss) on Cycle 1 Day 15, BID Intermittent Dosing, With Fulvestrant
Time Frame: 15 Days
15 Days
AZD2014 Area Under the Plasma Concentration Time Curve (AUC 0-12) Cycle 1 Day 15 Intermittent Dosing, With Fulvestrant
Time Frame: 15 Days
15 Days
AZD2014 Peak Plasma Concentration at Steady State (Cmax,ss) on Cycle 1 Day 22, Continuous Dosing, With Fulvestrant
Time Frame: 22 Days
22 Days
Time to AZD2014 Peak Plasma Concentration at Steady State (Tmax,ss) on Cycle 1 Day 22, Continuous Dosing, With Fulvestrant
Time Frame: 22 Days
22 Days
AZD2014 Area Under the Plasma Concentration Time Curve (AUC 0-12) Cycle 1 Day 22 Continuous Dosing, With Fulvestrant
Time Frame: 15 Days
15 Days

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
AZD2014 Peak Plasma Concentration (Cmax) Following Single Dose, Fasted, no Fulvestrant.
Time Frame: 1 Day
1 Day
Time to AZD2014 Peak Plasma Concentration (Tmax) Following Single Dose, Fasted, no Fulvestrant.
Time Frame: 1 Day
1 Day
Area Under the Plasma Concentration-time Curve for AZD2014 From 0 to 12 Hours (AUC 0-12) Following Single Dose, Fasted, no Fulvestrant.
Time Frame: 1 Day
1 Day
Area Under the Plasma Concentration-time Curve for AZD2014 From 0 to Infinity (AUC 0-∞) Following Single Dose, Fasted, no Fulvestrant.
Time Frame: 1 Day
1 Day
Objective Response Rate
Time Frame: Up to 12 months
Objective Response Rate (ORR) is defined as the number (%) of patients with a confirmed overall response of either complete response (CR) or partial response (PR).
Up to 12 months
Best Objective Response (BOR)
Time Frame: Up to 12 months
Best objective response was the best response a patient had following start of treatment but prior to starting any subsequent cancer therapy and prior to RECIST v1.1 progression or the last evaluable assessment in the absence of RECIST v1.1 progression.
Up to 12 months
Duration of Response (DoR)
Time Frame: Up to 12 months
Duration of response is defined as the time from the date of first documented response until the date of documented progression or death in the absence of disease progression.
Up to 12 months
Clinical Benefit Rate (CBR) at 24 Weeks
Time Frame: Up to 12 months
The Clinical Benefit Rate (CBR) at 24 weeks is defined as the percentage of patients who had a confirmed BOR of CR or PR in the first 24 weeks or who demonstrated SD for a minimum interval of 24 weeks (minus 1 week to allow for an early assessment within the assessment window, i.e., 161 days) following the start of treatment.
Up to 12 months
Percentage Change From Baseline at 16 Weeks in Target Lesion (TL) Size.
Time Frame: Up to 12 months
Baseline was defined as last evaluable assessment prior to starting treatment. Tumour size was the sum of the longest diameters of the target lesions. TLs are measurable tumour lesions.
Up to 12 months
Progression Free Survival
Time Frame: Up to 12 months
Up to 12 months
Progression Free Survival at 26 Weeks
Time Frame: Up to 12 months
Up to 12 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
AstraZeneca

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 8, 2012

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
August 4, 2016

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
January 13, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 28, 2012

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 10, 2012

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 14, 2012

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
February 24, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 6, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • D2270C00005
  • 264477 (Other Identifier: Parexel International (IRL) Limited)
  • BRE-196

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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