Outcomes Of The Spanish Cohort Of Early Access To Pertuzumab And Trastuzumab Emtansine (KNOWHER)

March 4, 2020 updated by: BELEN RUIZ-ANTORAN

Use Of Pertuzumab And Trastuzumab Emtansine In Adult Patients With Her2-Positive Metastatic Or Locally Recurrent Unresectable Breast Cancer

The overall study objective is to evaluate the effectiveness and safety of Trastuzumab emtansine (T-DM1) and Pertuzumab under real-world disease conditions in the Spain, and specifically in patients treated under compassionate use or early access program

Study Overview

Status

Completed

Conditions

Detailed Description

This is a retrospective, non-interventional, non-comparative, observational cohort study / registry in the Spain. The study design will reflect real-life clinical management of patients with HER2-positive MBC. Type and frequency of actual patient visits and all evaluations will be done as for routine clinical practice.

The analysis of the efficacy and safety results obtained in patients receiving pertuzumab or TDM1 in those early access systems is of utmost importance. These real-world patients with advanced breast cancer may have different characteristics than those enrolled in clinical trials and clinicians must often extrapolate into therapeutic decisions not fully supported by a robust evidence.

Study Type

Observational

Enrollment (Actual)

220

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

  • Spain
      • Madrid, Spain, 28222
        • Puerta de Hierro University Hospital

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

18 years to 100 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

This study will include a cohort of approximately 700 adult patients from the Spain with HER2-positive metastatic or locally recurrent unresectable breast cancer and who are treated with Trastuzumab emtansine (T-DM1) or Pertuzumab under compassionate use or early access program. The decision to initiate use of Trastuzumab emtansine (T-DM1) and Pertuzumab is made independently by the participant and their health care provider and is not mandated by the study design or protocol.

Description

Inclusion Criteria:

  • Adult patients (age ≥ 18 years at enrolment) with HER2-positive metastatic or locally recurrent unresectable breast cancer and who are treated with Trastuzumab emtansine (T-DM1) or Pertuzumab.
  • Patients who initiate Trastuzumab emtansine (T-DM1) and Pertuzumab under Spanish compassionate use or early access program.

Exclusion Criteria:

  • Given the characteristics of the study there are no exclusion criteria.

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

Cohorts and Interventions

Group / Cohort
Pertuzumab
Patients with HER2-positive metastatic or locally recurrent unresectable breast cancer and who are treated with Pertuzumab under Spanish compassionate use or early access program
Trastuzumab emtansine
Patients with HER2-positive metastatic or locally recurrent unresectable breast cancer and who are treated with Trastuzumab emtansine (T-DM1) under Spanish compassionate use or early access program

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Overall survival.
Time Frame: Through study completion (from date of start of treatment until the date of death from any cause, assessed up to 48 months).
The time between the date of start of treatment and the date of death. For subjects without documentation of death, OS will be censored on the last date the subject was known to be alive
Through study completion (from date of start of treatment until the date of death from any cause, assessed up to 48 months).

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Progression free survival.
Time Frame: Through study completion (from date of start of treatment until the date of first documented progression assessed up to 48 months)
The time from start of treatment to the date of the first documented tumour progression as determined by the clinician (may be based on clinical examination or radiographic or laboratory features).
Through study completion (from date of start of treatment until the date of first documented progression assessed up to 48 months)
Best overall response rate
Time Frame: Through study completion, an average of 4 year
Response rate is defined as the proportion of patients with complete response (CR) or partial response (PR) based on their best overall response as written in the medical record
Through study completion, an average of 4 year
Duration of response (DOR)
Time Frame: Through study completion, an average of 4 year
The time between the date of first confirmed response to the date of the first documented tumour progression, or death due to any cause, whichever occurs first. At the time of the analysis, several limitations should be taken into consideration for this retrospective study: DOR is only appraisable if measurable disease and DOR data availability in the medical records (ideally assessed with the RECIST criteria) could be incomplete.
Through study completion, an average of 4 year
Time to treatment failure
Time Frame: Through study completion (from date of start of treatment until the date of treatment failure, assessed up to 48 months)
Through study completion (from date of start of treatment until the date of treatment failure, assessed up to 48 months)
Time to Objective Response
Time Frame: Through study completion (from date of start of treatment until the date of the first confirmed response, assessed up to 48 months)
The time from start of treatment to the date of the first confirmed response (evaluated for responders only)
Through study completion (from date of start of treatment until the date of the first confirmed response, assessed up to 48 months)
Time to change treatment
Time Frame: Through study completion (from date of start of treatment until the date of change treatment, assessed up to 48 months)
Through study completion (from date of start of treatment until the date of change treatment, assessed up to 48 months)
Time to next treatment
Time Frame: Through study completion (from date of start of treatment until the date of start other treatment, assessed up to 48 months)
Through study completion (from date of start of treatment until the date of start other treatment, assessed up to 48 months)
All suspected Grade 3/4/5 adverse reactions
Time Frame: Through study completion, an average of 4 year
Through study completion, an average of 4 year
Adverse events of special interest to anti HER2 Mab (AESI)
Time Frame: Through study completion, an average of 4 year
  • AESIs regarding treatment with T-DM1: Hepatic disorder (specific analytical alteration)
  • AESIs regarding treatment with Pertuzumab: Interstitial Lung Disease
Through study completion, an average of 4 year
AEs of scientific interest
Time Frame: Through study completion, an average of 4 year
  • An asymptomatic decline in LVEF requiring treatment or leading to discontinuation of study treatment (regarding treatment with T-DM1 and Pertuzumab)
  • Other AEs leading to treatment discontinuation
Through study completion, an average of 4 year

Collaborators and Investigators

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

Sponsor

BELEN RUIZ-ANTORAN

Investigators

  • Principal Investigator: Belén Ruiz-Antorán, PhD, Department of Clinical Pharmacology, University Hospital Puerta de Hierro Majadahonda, Madrid, Spain

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)

December 1, 2017

Primary Completion (Actual)

October 1, 2018

Study Completion (Actual)

January 31, 2020

Study Registration Dates

First Submitted

January 11, 2017

First Submitted That Met QC Criteria

January 16, 2017

First Posted (Estimate)

January 19, 2017

Study Record Updates

Last Update Posted (Actual)

March 5, 2020

Last Update Submitted That Met QC Criteria

March 4, 2020

Last Verified

March 1, 2020

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • ML29844

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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