NCT07583485

Brief Summary

Non-interventional, multicenter, prospective observational study of tucatinib-trastuzumab capecitabine administered according to the standard local clinical practice following approved SmPC indication and dose. About 300 Her2 positive metastatic breast cancer patients who are candidate to tucatinib treatment in real world setting including patients previously treated with trastuzumab, pertuzumab, T-DM1, T-DXd as per authorized therapy setting and NPP/EAP ongoing program. Primary Objective: To assess the treatment safety and effectiveness as measured by investigator criteria in metastatic breast cancer patients within the real-world setting treated with tucatinib in combination with trastuzumab and capecitabine according to standard local clinical practice following approved Summary of Product Characteristics (SmPC) indication and dose. The primary purpose of this study is to evaluate the real word effectiveness of the combination therapy "tucatinib/trastuzumab/capecitabine" in mBC patients according to the approved SmPC indication and dose in the real-world setting. Patients with human epidermal growth factor receptor 2 (HER2)- positive metastatic breast cancer who have disease progression after therapy with multiple HER2-targeted agents have limited treatment options. HER2 is a transmembrane tyrosine kinase receptor that mediates cell growth, differentiation, and survival. HER2 is overexpressed in approximately 20% of breast cancers. Both antibody and small-molecule drugs that target HER2 and block its tyrosine kinase activity has been demonstrated to be effective in treating HER2-driven cancers. Tucatinib is an investigational, oral, highly selective inhibitor of the HER2 tyrosine kinase. On April 17, 2020, the Food and Drug Administration approved tucatinib in combination with trastuzumab and capecitabine, for adult patients with advanced unresectable or metastatic HER2- positive breast cancer, including patients with brain metastases, who have received one or more prior anti-HER2-based regimens in the metastatic setting. On 10 December 2020, the European Medicines Agency's (EMA) Committee for Medicinal Products for Human Use (CHMP) adopted a positive opinion, recommending the granting of a marketing authorization for Tukysa (tucatinib) in combination with trastuzumab and capecitabine for the treatment of adult patients with human epidermal growth factor receptor 2 (HER2)-positive locally advanced or metastatic breast cancer (BC) who have received at least two prior anti-HER2 treatment regimens. Tucatinib received a marketing authorization valid throughout the EU on February 2021. The approvals were based on the results of the phase II HER2CLIMB trial in which HER2-positive breast cancer patients, previously treated with trastuzumab, pertuzumab (Perjeta) and trastuzumab emtansine (T-DM1; Kadcyla), have been randomized to receive trastuzumab and capecitabine with either tucatinib or placebo (randomization 2:1).Among the 511 patients with measurable disease at baseline, an objective response was confirmed in 40.6% of patients in the tucatinib-combination group and 22.8% of patients in the placebo-combination group. The primary endpoint of the trial was PFS and the secondary end points comprised overall survival (OS), as well as confirmed objective response rate (ORR). Tucatinib demonstrated efficacy compared with placebo in PFS (7.8 months versus 5.6months) and OS (21.9 months versus 17.4 months). The most common adverse events in the tucatinib arm were diarrhea, palmar-plantar erythrodysesthesia syndrome, fatigue, nausea, and vomiting and transaminitis, even though typically low-grade, transient, and reversible. In addition, out of the ∼600 patients enrolled, 291 patients had brain metastases at baseline. Brain mets including those with active brain mets. Among patients with brain mets PFS at 1 y was 24,9% in the tucatinib combination group vs 0% in the placebo combination group, HR: 0.48;95% CI to 69%;p\<0.0001 and median PFS was 7.6 and 5.4 respectively. This represents for many patients the availability of a new valuable therapeutic option especially where the occurrence of brain metastases is frequent. Based on the reported data and considering the clinical benefit of the therapy such as prolongation of PFS/OS, a prospective study on the efficacy and safety profile of the tucatinib in the real-world population can be very useful to follow the evolution of HER2- positive metastatic breast cancer with this promising treatment.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
300

participants targeted

Target at P75+ for all trials

Timeline
38mo left

Started Jul 2024

Longer than P75 for all trials

Geographic Reach
1 country

30 active sites

Status
recruiting

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

Study Progress38%
Jul 2024Jul 2029

Study Start

First participant enrolled

July 1, 2024

Completed
1.8 years until next milestone

First Submitted

Initial submission to the registry

April 28, 2026

Completed
15 days until next milestone

First Posted

Study publicly available on registry

May 13, 2026

Completed
3.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2029

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2029

Last Updated

May 13, 2026

Status Verified

May 1, 2026

Enrollment Period

5 years

First QC Date

April 28, 2026

Last Update Submit

May 6, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • To assess the treatment safety and effectiveness as measured by investigator criteria in metastatic breast cancer patients

    Primary endpoint: * Real world Effectiveness of tucatinib/trastuzumab/capecitabine treatments will be collected according to SmPC indication and will include the evaluation in routine clinical practice of: * TTNT (time to next systemic treatment) defined as time from first administration of any study treatment ( i.e. tucatinib/trastuzumab/ capecitabine) to start of a subsequent systemic antineoplastic therapy or death whichever comes first

    From enrollment to the end of follow-up (18 months after tucatinib treatment)

Study Arms (1)

Her2 positive metastatic breast cancer patients

Her2 positive metastatic breast cancer patients who are candidate to tucatinib treatment in real world setting including patients previously treated with trastuzumab, pertuzumab, T-DM1, T-DXd as per authorized therapy setting and NPP/EAP ongoing program.

Eligibility Criteria

Age18 Years+
Sexfemale(Gender-based eligibility)
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Her2 positive metastatic breast cancer patients who are candidate to tucatinib treatment in real world setting including patients previously treated with trastuzumab, pertuzumab, T-DM1, T-DXd as per authorized therapy setting and NPP/EAP ongoing program.

You may qualify if:

  • Women aged 18 years or older;
  • Metastatic breast cancer her2 positive;
  • Treatment and treated indication according to local label SmPC and reimbursement for tucatinib-trastuzumab capecitabine treatment;
  • At least 2 prior anti her2 treatment in any setting;
  • Written informed consent indicating that patients understand the purpose and procedures and are willing to participate in the study.

You may not qualify if:

  • Patients with diseases or significant clinical condition, according to the findings of the investigator, may interfere with the study evaluations;
  • Absence of any radiological assessment;
  • No data on tucatinib efficacy and safety.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (30)

AORN S.G. Moscati

Avellino, AV, Italy

RECRUITING

AOU delle Marche

Ancona, Italy

ACTIVE NOT RECRUITING

IRCCS Centro di Riferimento Oncologico (CRO)

Aviano, Italy

RECRUITING

IRCCS Istituto Tumori "Giovanni Paolo II"

Bari, Italy

RECRUITING

Mons. Dimiccoli P.O. Barletta

Barletta, Italy

NOT YET RECRUITING

ASST Papa Giovanni XXIII

Bergamo, Italy

RECRUITING

AORN "Sant'Anna e San Sebastiano" Caserta

Caserta, Italy

RECRUITING

IRCCS Ospedale Policlinico San Martino

Genova, Italy

ACTIVE NOT RECRUITING

IRCCS Ospedale San Raffaele

Milan, Italy

RECRUITING

Istituto Europeo di Oncologia

Milan, Italy

RECRUITING

Humanitas Istituto Clinico Catanese

Misterbianco, Italy

RECRUITING

A.O. "A. Cardarelli"

Naples, Italy

RECRUITING

AOU Federico II

Naples, Italy

ACTIVE NOT RECRUITING

Istituto Nazionale Tumori "Fondazione G. Pascale"

Naples, Italy

RECRUITING

Istituto Oncologico Veneto I.R.C.C.S.

Padova, Italy

RECRUITING

P.O. "Andrea Tortora"

Pagani, Italy

NOT YET RECRUITING

A.O.U.P. "P. Giaccone"

Palermo, Italy

ACTIVE NOT RECRUITING

ARNAS Civico - Palermo

Palermo, Italy

NOT YET RECRUITING

La Maddalena

Palermo, Italy

NOT YET RECRUITING

Ospedale "Guglielmo Da Saliceto"

Piacenza, Italy

RECRUITING

A.S.L. Napoli 3 SUD - P.O. Apicella

Pollena Trocchia, Italy

NOT YET RECRUITING

AUSL della Romagna - IRST-IRCCS "Dino Amadori"

Rimini, Italy

RECRUITING

A.O.U. Policlinico "Umberto I"

Roma, Italy

NOT YET RECRUITING

Fondazione Universitaria Policlinico Gemelli IRCCS

Roma, Italy

NOT YET RECRUITING

Ospedale "Sandro Pertini" - A.S.L. Roma 2

Roma, Italy

NOT YET RECRUITING

I.R.C.C.S. Istituto Clinico Humanitas

Rozzano, Italy

NOT YET RECRUITING

A.O.U. "San Giovanni di Dio e Ruggi d'Aragona"

Salerno, Italy

NOT YET RECRUITING

Casa Sollievo della Sofferenza

San Giovanni Rotondo, Italy

NOT YET RECRUITING

A.O.U. "Città della Salute e della Scienza di Torino" - P.O. Sant'Anna

Torino, Italy

NOT YET RECRUITING

Azienda Provinciale Servizi Sanitari di Trento - Ospedale Santa Chiara

Trento, Italy

NOT YET RECRUITING

MeSH Terms

Conditions

Breast Neoplasms

Condition Hierarchy (Ancestors)

Neoplasms by SiteNeoplasmsBreast DiseasesSkin DiseasesSkin and Connective Tissue Diseases

Central Study Contacts

Michelino De Laurentiis MD

CONTACT

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
PROSPECTIVE
Target Duration
2 Years
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 28, 2026

First Posted

May 13, 2026

Study Start

July 1, 2024

Primary Completion (Estimated)

July 1, 2029

Study Completion (Estimated)

July 1, 2029

Last Updated

May 13, 2026

Record last verified: 2026-05

Locations