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Clinical Trial Details — Status: Active, not recruiting

Administrative data

NCT number NCT04214288
Other study ID # D8530C00002
Secondary ID 2019-003706-27
Status Active, not recruiting
Phase Phase 2
First received
Last updated
Start date April 22, 2020
Est. completion date March 28, 2025

Study information

Verified date April 2024
Source AstraZeneca
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This study is randomized, open-label, parallel-group, multicentre Phase 2 study aimed to compare the efficacy and safety of oral AZD9833 versus intramuscular (IM) fulvestrant in women with advanced breast cancer.


Description:

Post-menopausal women with histologically or cytologically confirmed metastatic or loco-regionally recurrent ER-positive HER2-negative breast cancer before randomization and fulfilling all of the inclusion criteria and none of the exclusion criteria will be included. After the screening visit and confirmation of eligibility, patients will be randomly assigned in a 1:1:1:1 ratio to receive 1 of the following 4 treatments, consisting of 4-week treatment cycles until disease progression (assessed by the Investigator as defined by Response Evaluation Criteria in Solid Tumours [RECIST] version 1.1): - AZD9833 (Dose A) - AZD9833 (Dose B) - AZD9833 (Dose C) - Fulvestrant (500 mg) During the treatment period, patients will have scheduled visits until treatment discontinuation. After the end of treatment, patients will attend 2 safety follow-up visits (at the time of treatment discontinuation and 28 days later) and will continue to be followed for survival. As of December 2020, the Sponsor stopped enrolment to Dose C.


Recruitment information / eligibility

Status Active, not recruiting
Enrollment 240
Est. completion date March 28, 2025
Est. primary completion date August 30, 2022
Accepts healthy volunteers No
Gender Female
Age group 18 Years to 130 Years
Eligibility Inclusion Criteria: - Post-menopausal female patients aged at least 18 years. - Metastatic or loco-regionally recurrent ER-positive HER2-negative adenocarcinoma of the breast. - Radiological or other objective evidence of progression on or after the last systemic therapy prior to starting study treatment. - Patients must have at least 1 lesion, not previously irradiated, that can be measured accurately at baseline as =10 mm in the longest diameter or in absence of measurable disease as defined above, at least 1 lytic or mixed (lytic+sclerotic) bone lesion. - Eastern Cooperative Oncology Group (ECOG)/World Health Organisation (WHO) performance status 0 to 1. - Prior endocrine therapy as follows: 1. Recurrence or progression on at least one line of endocrine therapy 2. No more than 1 line of endocrine therapy for advanced disease 3. No more than 1 line of chemotherapy for advanced disease 4. Prior treatment with CDK4/6 inhibitors is permitted 5. No prior treatment with fulvestrant, oral selective oestrogen receptor degrader (SERD), or related therapies - Inclusion criterion for the paired tumour biopsy research subgroup: Washout from prior tamoxifen: 4 months to elapse from last tamoxifen dose to pre-dose on-study biopsy. Exclusion Criteria: Intervention with any of the following: - Any cytotoxic chemotherapy, investigational agents or other anti-cancer drugs for the treatment of breast cancer from a previous treatment regimen or clinical study within 14 days of the first dose of study treatment. - Use of systemic oestrogen-containing hormone replacement therapy within 6 months prior to the first dose of study treatment. - Medications or herbal supplements known to be strong inhibitors/inducers of cytochrome P450 3A4/5 and sensitive CYP2B6 substrates, and drugs which are substrates of CYP2C9 and/or CYP2C19 which have a narrow therapeutic index or inability to stop use within the washout period prior to receiving the first dose of study treatment. - Drugs that are known to prolong QT and have a known risk of torsades de pointes. - The following cardiovascular criteria: QTcF >470 ms, resting heart rate <45 bpm, clinically significant abnormalities of resting electrocardiogram, uncontrolled hypertension, symptomatic hypotension, factors that increase the risk for QTc prolongation, left ventricular ejection fraction <50%. - Radiotherapy with a limited field of radiation for palliation within 1 week of dosing, or to > 30% of bone marrow or a wide field within 4 weeks of dosing. - Major surgical procedure or significant traumatic injury. - Presence of life-threatening metastatic visceral disease or uncontrolled central nervous system metastatic disease. - Inadequate bone marrow reserve or organ function. - Refractory nausea and vomiting, uncontrolled chronic gastrointestinal diseases, inability to swallow the formulated product, or previous significant bowel resection that would preclude adequate absorption of AZD9833. - History of hypersensitivity to active or inactive excipients of AZD9833 or fulvestrant. - Previous randomisation in the present study. - Women of childbearing potential.

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
AZD9833
Dosage formulation: AZD9833 tablets will be administered orally.
Fulvestrant
Dosage formulation: Fulvestrant will be administered via intramuscular (IM) injection.

Locations

Country Name City State
Belgium Research Site Brasschaat
Belgium Research Site Charleroi
Belgium Research Site Gent
Belgium Research Site Haine-Saint-Paul
Belgium Research Site Leuven
Belgium Research Site Libramont-Chevigny
Belgium Research Site Namur
Canada Research Site Greenfield Park Quebec
Canada Research Site Montreal Quebec
Canada Research Site Montreal Quebec
France Research Site Paris
France Research Site Vandoeuvre les Nancy
Georgia Research Site Batumi
Georgia Research Site Tbilisi
Georgia Research Site Tbilisi
Georgia Research Site Tbilisi
Georgia Research Site Tbilisi
Georgia Research Site Tbilisi
Germany Research Site Berlin
Germany Research Site Düsseldorf
Germany Research Site Essen
Hungary Research Site Budapest
Hungary Research Site Debrecen
Hungary Research Site Kaposvár
Hungary Research Site Kecskemét
Hungary Research Site Nyíregyháza
Hungary Research Site Pécs
Hungary Research Site Szeged
Israel Research Site Jerusalem
Israel Research Site Jerusalem
Israel Research Site Nahariya
Israel Research Site Petah Tikva
Italy Research Site Bologna
Italy Research Site Catanzaro
Italy Research Site Meldola
Italy Research Site Messina
Italy Research Site Milan
Italy Research Site Milano
Italy Research Site Monza
Italy Research Site Napoli
Italy Research Site Roma
Italy Research Site Umbria
Korea, Republic of Research Site Goyang-si
Korea, Republic of Research Site Incheon
Poland Research Site Bydgoszcz
Poland Research Site Lódz
Poland Research Site Pila
Poland Research Site Rzeszów
Poland Research Site Skorzewo
Poland Research Site Warszawa
Portugal Research Site Almada
Portugal Research Site Lisboa
Portugal Research Site Lisboa
Portugal Research Site Lisboa
Portugal Research Site Lisboa
Portugal Research Site Loures
Portugal Research Site Porto
Russian Federation Research Site Kazan
Russian Federation Research Site Krasnodar
Russian Federation Research Site Kursk
Russian Federation Research Site Moscow
Russian Federation Research Site Moscow
Russian Federation Research Site Pyatigorsk
Russian Federation Research Site Ryazan
Russian Federation Research Site Saint Petersburg
Russian Federation Research Site Saint-Petersburg
Russian Federation Research Site Volgograd
Spain Research Site Barcelona
Spain Research Site Barcelona
Spain Research Site Madrid
Spain Research Site Madrid
Spain Research Site Sevilla
Spain Research Site Zaragoza
Ukraine Research Site Cherkasy
Ukraine Research Site Chernivts?
Ukraine Research Site Dnipro
Ukraine Research Site Kyiv
Ukraine Research Site M. Kyiv
Ukraine Research Site S. Khodosivka
Ukraine Research Site Uzhhorod
United Kingdom Research Site Derby
United Kingdom Research Site Leicester
United States Research Site Birmingham Alabama
United States Research Site Canton Ohio
United States Research Site Chattanooga Tennessee
United States Research Site Eagle River Wisconsin
United States Research Site Fort Myers Florida
United States Research Site Lincoln Nebraska
United States Research Site Long Beach California
United States Research Site Nashville Tennessee
United States Research Site Saint Petersburg Florida

Sponsors (1)

Lead Sponsor Collaborator
AstraZeneca

Countries where clinical trial is conducted

United States,  Belgium,  Canada,  France,  Georgia,  Germany,  Hungary,  Israel,  Italy,  Korea, Republic of,  Poland,  Portugal,  Russian Federation,  Spain,  Ukraine,  United Kingdom, 

Outcome

Type Measure Description Time frame Safety issue
Other Number of Patients With Adverse Events The safety and tolerability of AZD9833 when compared to fulvestrant in women with advanced ER-positive HER2-negative breast cancer was evaluated. From the date of first dose up to the safety follow-up period (28 days after last dose of AZD9833 and 56 days after last dose of fulvestrant) (up to data cut-off of 29 months)
Primary Progression-free Survival (PFS) PFS was assessed by the Investigator as defined by response evaluation criteria in solid tumors (RECIST) version 1.1. PFS was defined as the time from randomisation until the date of objective disease progression or death (by any cause in the absence of progression) regardless of whether the patient withdraws from randomised therapy or received another anti-cancer therapy prior to progression. Disease progression was defined as =20% increase in the sum of diameters of target lesions, unequivocal progression in non-target lesions, and/or appearance of new lesions.
Data from the 300mg arm should be interpreted with caution as recruitment to the 300mg arm was stopped early at 20 patients randomised and therefore the 300mg data is highly variable.
From date of randomisation to date of objective disease progression (or last evaluable assessment in the absence of progression) or death (up to data cut-off of 29 months)
Secondary Objective Response Rate (ORR) ORR was assessed by the Investigator as defined by RECIST version 1.1. The ORR was defined as investigator assessed Complete Response or Partial Response prior to progression in patients with measurable disease per Response Evaluation Criteria in Solid Tumors (RECIST v1.1).
Adjusted response rate was presented in this analysis.
Data from the 300mg arm should be interpreted with caution as recruitment to the 300mg arm was stopped early at 20 patients randomised and therefore the 300mg data is highly variable.
From screening until disease progression (up to data cut-off of 29 months)
Secondary Duration of Response (DoR) DoR was assessed by the Investigator as defined by RECIST version 1.1. The DoR was defined as the time from the date of first documented response until date of documented progression or death in the absence of disease progression. From screening until disease progression or last evaluable assessment in the absence of progression (up to data cut-off of 29 months)
Secondary Percentage Change in Tumour Size at 16 Weeks The percentage change in tumour size at 16 weeks was obtained for each patient, based on RECIST measurements taken at baseline and at 16 weeks. Tumour size is the sum of the longest diameters of the target lesions (TLs). Percentage change in the sum of longest TLs diameters at 16 weeks was measured. At Week 16
Secondary Overall Survival (OS) The OS was defined as the time from randomisation to death due to any cause. From the date of randomisation until death (up to data cut-off of 29 months)
Secondary Clinical Benefit Rate at 24 Weeks (CBR24) Clinical benefit rate was defined as patients with best objective response of complete response or partial response in the first 25 weeks or who have stable disease for at least 23 weeks after randomization.
Adjusted response rate was presented in this analysis.
Data from the 300mg arm should be interpreted with caution as recruitment to the 300mg arm was stopped early at 20 patients randomised and therefore the 300mg data is highly variable.
At Week 24
Secondary Plasma Concentrations of AZD9833 The plasma concentrations of AZD9833 at steady state were evaluated. Cycle 1 Day 15 (pre-dose), Cycle 1 Day 15 (2h), Cycle 1 Day 15 (4h) and Cycle 2 Day 1 (pre-dose), (each cycle is 28 days in length)
Secondary Percent Change From Baseline in ER and PgR Expression and Ki67 Labelling Index The pharmacodynamics of AZD9833 and fulvestrant in a subgroup of patients. From baseline to Cycle 2 Day 1 (each cycle is 28 days in length)
Secondary Changes From Baseline in Health Related Quality of Life (HRQoL) To evaluate the effect of AZD9833 and fulvestrant on the patients' health-related quality of life, as assessed by patient completed HRQoL questionnaires. From Day 1 until end of treatment and safety follow up (up to data cut-off of 29 months)

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