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De-escalation Adjuvant Chemo in HER2+/ER-/node-neg Early BC Patients Who Achieved PCR After Neoadjuvant Chemo & Dual HER2 Blockade

NCT04675827 · Status: TERMINATED · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 139

Last updated 2024-12-04

No results posted yet for this study

Summary

DECRESCENDO is a multicentre, open-label, dual-phase single-arm phase II de-escalation study evaluating neoadjuvant treatment with 12 administrations of weekly IV paclitaxel 80 mg/m2 (or IV docetaxel 75 mg/m2 every 3 weeks for 4 cycles) combined with subcutaneous (SC) fixed dose combination (FDC) of pertuzumab and trastuzumab (loading dose of 1200 mg pertuzumab and 600 mg trastuzumab, followed by 600 mg pertuzumab and 600 mg trastuzumab) every 3 weeks for 4 cycles.

Surgery will be performed according to local guidelines in all subjects after neoadjuvant treatment.

After surgery, subjects who achieve a pCR (defined as pT0/Tis pN0) will receive adjuvant pertuzumab and trastuzumab FDC SC for additional 14 cycles. Subjects with residual invasive disease will receive salvage adjuvant trastuzumab emtansine (T-DM1, 3.6 mg/kg, IV every 3 weeks) for 14 cycles. In subjects whose residual invasive disease is classified per RCB score as ≥2, 3 to 4 cycles of anthracycline-based chemotherapy may be administered, at the investigator's discretion, before the 14 cycles of T-DM1.

If histopathological analysis finds that the surgical specimen from a subject with residual disease is ER-positive and/or PR-positive, adjuvant endocrine therapy may be administered concomitantly with study treatment, at the investigator's discretion and according to local guidelines.

Adjuvant radiotherapy will be mandatory after breast-conserving surgery, whereas it will be performed according to local guidelines after mastectomy, and it will be administered concomitantly with pertuzumab and trastuzumab FDC SC in subjects who achieve a pCR, and concomitantly with T-DM1 in subjects with residual invasive disease (after anthracycline-based chemotherapy in subjects assigned to receive this treatment).

Conditions

Interventions

DRUG

Pertuzumab and tratuzumab fixed dose combination

Treatment administration: adjuvant pertuzumab and trastuzumab fixed dose combination SC for 14 cycles

DRUG

Trastuzumab emtansine

Treatment administration: adjuvant T-DM1 for 14 cycles.

Sponsors & Collaborators

  • Breast International Group

    collaborator OTHER

  • Hoffmann-La Roche

    collaborator INDUSTRY

  • International Drug Development Institute

    collaborator OTHER

  • Institut Curie

    collaborator OTHER

  • Jules Bordet Institute

    lead OTHER

Principal Investigators

  • Martine Piccart, PD, PhD · Jules Bordet Institute

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
SEQUENTIAL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2022-01-17
Primary Completion
2024-11-26
Completion
2024-11-26
FDA Drug
Yes

Countries

  • Australia
  • Belgium
  • France
  • Israel
  • South Korea
  • Switzerland

Study Locations

More Related Trials

Entities

Diseases
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04675827 on ClinicalTrials.gov