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Study identifier: NCT04993014 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Circulating Tumor Cells and Treatment De-escalation After Neoadjuvant Therapy for HER2 Positive Breast Cancer

Condition: Breast Neoplasms · HER2-positive Breast Cancer · Circulating Tumor Cell  ·  Sponsor: AC Camargo Cancer Center

PhasePhase 2
Planned participants80
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

Phase II unicentric randomized trial which will include early HER2 positive breast cancer patients, candidate to neoadjuvant therapy with trastuzumab and pertuzumab. Circulating tumor cells will be collected at neoadjuvant therapy baseline. Patients with pathological complete response will be randomized in 1:1 ratio for adjuvant trastuzumab (arm A) versus trastuzumab + pertuzumab (arm B) in a two factorial design: group A, with HER2 positive CTCs and group B, with HER2 negative/absent CTCs.

This description comes directly from the study's public registry record.

Talk to the study team

Marcelle G Cesca, MD  ·  +551121895000  ·  marcelle.cesca@accamargo.org.br

Ludmilla TD Chinen, PhD  ·  +551121895000  ·  ludmilla.chinen@accamargo.org.br

Always discuss trial participation with your own doctor first.

Locations (1)

A.C. Camargo Cancer CenterSão Paulo, BrazilRecruiting

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Source record: clinicaltrials.gov/study/NCT04993014