Capecitabine in Combination With Aromatase Inhibitor Versus Aromatase Inhibitors, in Hormonal Receptor Positive Recurrent or Metastatic Breast Cancer Patients, Randomized Controlled Study (CONCEPT)

July 6, 2019 updated by: Hesham Elghazaly,MD, Ain Shams University

Capecitabine in Combination With Aromatase Inhibitor Versus Aromatase Inhibitors, in Hormonal Receptor Positive Recurrent or Metastatic Breast Cancer Patients, Randomized Controlled Study (CONCEPT Trial)

Women with recurrent or metastatic breast cancer who are hormone receptor positive are candidates for first line hormonal therapy including aromatase inhibitors. In the past few years new combination therapies became available as fulvastrant or palbociclib with letrezole; increasing the progression free survival (PFS). A retrospective study showed that combination of capecitabine with aromatase inhibitors increase PFS as 1st and 2nd line line treatment another prospective study showed the same results. The aim of our study is confirm such data by a randomized controlled trial.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Breast cancer is the most commonly diagnosed cancer and the leading cause of cancer death among women worldwide, accounting for 25% of total cancer cases (Globocan, 2012) It ranks as the most prevalent cancer among women in the Middle East and Northern Africa (Ferlay et al., 2015). In Egypt, breast cancer is the most common type of cancer among females (Ibrahim et al., 2014).

Survival of breast cancer patients depends on the disease stage. Most of the patients with localized disease experience long-term disease-free survival. Meanwhile, those who develop metastasis have a 5-year relative survival of only 24% (Siegel et al, 2015). Hormonal receptor positive (HR +ve) represent the most common subset (almost 70%) in both early and advanced disease (Clarke et al., 2012).

It is crucial to determine the menopausal status before initiation of treatment. For HR +ve / Her 2-negative metastatic breast cancer patients who premenopausal; If the patient had Disease free survival (DFS) of 12 months or more, or if she was diagnosed with metastasis de novo, the recommended first line is either ovarian ablation plus tamoxifen or aromatase inhibitor (Cardoso et al., 2017). For postmenopausal patients aromatase inhibitors are recommended with median progression-free survival (PFS) between 8 and 10 months (Bonneterre et al., 2000) and 10 months (Paridaens et al., 2008).

Chemotherapy regimens that are prescribed in hormone receptor-positive patients includes microtubule inhibitors (including taxanes and vinca alkaloids), anthracyclines, gemcitabine, cyclophosphamide and capecitabine. But endocrinal therapy is preferred as long as the patient is not in visceral crisis (Cardoso et al., 2017).

Recently new drugs that increased progression free survival (PFS) has been approved in the treatment of HR +ve metastatic breast cancer (MBC) as fulvastrant (Selective estrogen receptor modulator) (Ellis et al., 2015) and palbocilib (Ck4/6 inhibitor) (Finn et al., 2015) as first line and eveirolimus (mTor inhibitor)(Pritchard et al., 2012) as second line.

The optimum sequence of endocrinal treatment and chemotherapy has not been fully clarified, It is of great importance to bear in mind that the goal of treatment in recurrent and metastatic breast cancer is extending the progression free survival (PFS) and sustaining a good quality of life (Cardoso et al., 2017).

A retrospective study by Shankar et al. that compared between combination of capecitabine and aromatase inhibitor (AI) versus capecitabine alone versus aromatase inhibitor alone showed that the median PFS of first-line treatment was significantly better for the combination with PFS 21 months vs 8.0 months for capecitabine and 15.0 months for AI. For second-line treatment, the PFS was longer in the combination compared with capecitabine and Al groups (18 months vs. 5.0 months vs. 11.0 months, respectively) (Shankar et al., 2015).

Alvarado et al, compared combination aromatase inhibitor plus capecitabine versus capecitabine alone versus aromatase inhibitor alone. The median PFS of first-line treatment was significantly better for the combination (PFS not-reached for combination vs.3.0 m for capecitabine and 13.0 m for AI, p<0.0001). For second-line treatment, the PFS was longer in the combination compared to capecitabine and AI (PFS not reached vs. 6.0 m vs.13.0 m, respectively, p=0-041) (Alvarado et al., 2012).

In China a Phase II trial assessed the use of of metronomic oral capecitabine therapy combined with aromatase inhibitors in postmenopausal metastatic and recurrent breast cancer resistant to first-line aromataseinhibitors and the results showed overall Response Rate (ORR) 70.5% and median PFS 9.57 months (L. Jian-wei et al., 2015). Lee S. Schwartzberg conducted a phase II trial which results showed that fulvastrant with metronomic capecitabine for women with HR-Positive, HER2-Negative MBC has Median PFS was 14.98 months (Schwartzberg et al., 2014).

Capecitabine; being cheaper and more available in economically disadvantaged countries together with the promising results of the previous retrospective trial by Shankar et al and the prospective trial by Alvarado Miranda et al ; further confirmation of such results by a prospective randomized clinical trial is crucial. Currently a phase III trial under the title of "Metronomic Capecitabine Plus Aromatase Inhibitor for First Line Treatment in HR(+), Her2(-) Metastatic Breast Cancer" with the primary results expected to be published on 2021 (Sun Yat-sen University, 2016).

Study Type

Interventional

Enrollment (Anticipated)

124

Phase

  • Phase 2

Contacts and Locations

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

Study Contact

Study Contact Backup

Study Locations

  • Egypt
      • Cairo, Egypt, 11817
        • Recruiting
        • Clinical oncology department, Faculty of medicine, Ain Shams University
        • Contact:
          • Nada Naguib, Assistant lecturer
          • Phone Number: 1221222573
        • Sub-Investigator:
          • Nagy Samy Gobran
        • Sub-Investigator:
          • Ramy Refaat Ghali
        • Sub-Investigator:
          • Reham Mohamed Faheim

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

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  1. Adult women with locoregionally recurrent or metastatic disease not amenable to curative therapy
  2. Eastern Cooperative Oncology Group (ECOG) 0-2
  3. Hormone receptor positive
  4. No prior systemic anti-cancer therapy for advanced ER+ disease ( hormonal therapy)
  5. Measurable disease defined by revised RECIST criteria (version 1.1), or bone-only disease
  6. normal laboratory values
  7. Postmenopausal or premenopausal with oophorectomy (medical or surgical).

Exclusion Criteria:

  1. Patients with advanced, symptomatic, visceral spread that are at risk of life threatening complication in the short term
  2. Prior (neo) adjuvant treatment with same aromatase inhibitor type with DFI =< 12 months from completion of treatment.
  3. Known uncontrolled or symptomatic central nervous system metastases
  4. Second primary malignancy
  5. Serious uncontrolled intercurrent infections or intercurrent medical or psychiatric illness
  6. unable to swallow tablets, or malabsorption patients.
  7. unwilling or unable to comply with study protocol or unable to meet the follow up.
  8. patients who researchers considered were not suitable to participate.

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: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: A.I. + Capeciabine
Patients will receive Capecitabine 625 mg/m2 bid PO for 14 days to be repeated every 21 days until progression in combination with aromatase inhibitor if postmenopausal, addition of LHRH agonist will be added if premenopausal.
Drug: Capecitabine plus aromatase inhibitor
Capecitabine 625 mg/m2 bid PO for 14 days to be repeated every 21 days until progression in combination with aromatase inhibitor if postmenopausal, addition of LHRH agonist will be added if premenopausal.
Active Comparator: A.I
Patients will receive aromatase inhibitors ( letrozole 2.5 mg PO per day or Anastrozole 1 mg PO per day or aromasin 25 mg PO per day) if post-menopausal, if premenopausal leutnising hormone releasing hormone (LHRH) agonist will be added to the aromatase inhibitor.
Drug: A.I.
aromatase inhibitors ( letrozole 2.5 mg PO per day or Anastrozole 1 mg PO per day or aromasin 25 mg PO per day) if post-menopausal, if premenopausal leutnising hormone releasing hormone (LHRH) agonist will be added to the aromatase inhibitor

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Progress-free survival
Time Frame: up to 24 months
Time from randomization to the first documentation of objective tumor progression or to death due to any cause or Intolerable toxicity.
up to 24 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Adverse events
Time Frame: till progression or up to 24 months whichever earlier
Detailed Description and grading of adverse events
till progression or up to 24 months whichever earlier

Collaborators and Investigators

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

Sponsor

Ain Shams University

Investigators

  • Principal Investigator: Hesham Elghazaly, Professor, ain shams University

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.

General Publications

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)

August 30, 2018

Primary Completion (Anticipated)

August 1, 2020

Study Completion (Anticipated)

February 1, 2021

Study Registration Dates

First Submitted

May 16, 2019

First Submitted That Met QC Criteria

July 6, 2019

First Posted (Actual)

July 9, 2019

Study Record Updates

Last Update Posted (Actual)

July 9, 2019

Last Update Submitted That Met QC Criteria

July 6, 2019

Last Verified

July 1, 2019

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • Combined CTH and HT in MBC

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

Yes

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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