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12 weekS Adjuvant dOcetaxel Plus trastuzumaB in Patients With Small, Node-negative, HER2-positive Breast cancER (SOBER)

12 weekS Adjuvant dOcetaxel Plus trastuzumaB in Patients With Tumors ≤1cm, Node-negative, HER2-positive Breast cancER (SOBER):a Single-grouparm, Open-label, Prospective, Phase 2 Study

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03367676
Acronym
SOBER
Enrollment
78
Registered
2017-12-11
Start date
2017-12-30
Completion date
2025-10-01
Last updated
2026-09-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Breast Cancer

Keywords

trastuzumab, adjuvant therapy

Brief summary

This phase II trial aims to study the efficacy and safety of 12 weeks adjuvant docetaxel plus trastuzumab in patients with tumors ≤1cm, node-negative, HER2-positive breast cancer.

Detailed description

Many clinical trials has showed the superiority of combining trastuzumab to chemotherapy in the treatment of HER2 positive early breast cancer with tumor size ≥1cm or node metastasis.But in pT1n0m0 breast cancer patients, patients with HER2 positive tumor show worse prognosis than those with HER2 negative tumor.A short duration of trastuzumab administration contaminately with chemotherapy may have similar efficacy and lowerer toxiticy compared with standard one year therapy.Our study aims to study the efficacy and safety of 12 weeks adjuvant docetaxel plus trastuzumab in patients with tumors ≤1cm, node-negative, HER2-positive breast cancer.

Interventions

DRUGTrastuzumab

Trastuzumab is administered at a loading dose of 8 mg/kg IV followed by 6 mg/kg every 21 days for 4 cycles.

DRUGDocetaxel

Docetaxel 100mg/m2,d1,iv,q3w\*4

Sponsors

Ruijin Hospital
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Women aged ≥18 years Have finished radical operation Pathologically confirmed dignosis of infiltrating primary breast cancer According to AJCC ,pT≤1cm, pN0,no evidence for metastasis Operation specimens are available for ER, progesterone receptor (PR) and Her2 detection, patients should be Her2 positive tumor (3+ by IHC or FISH+ ) Has Eastern Cooperative Oncology Group (ECOG) Performance Score 0-1,expected survival time \> 12 months Adequate bone marrow function,adequate liver and renal function,and adequate coagulation function. Women with potential child-bearing must have a negative pregnancy test (urine or serum) within 7 days of drug administration and agree to use an acceptable and effective method of contraception to avoid pregnancy during the study. Written informed consent according to the local ethics committee requirements.

Exclusion criteria

pT\>1cm or node positive Metastatic breast cancer Any prior systemic or loco-regional treatment of breast cancer, including chemotherapy in 28 days With a history of malignant tumor except uterine cervix cancer in situ or skin basal cell carcinoma Patients with medical conditions that indicate intolerant to adjuvant chemotherapy and related treatment, including severe infection, coagulation disorder,active peptic ulcer, coagulation disorder, connective tissue disease or myelo-suppressive disease Has symptomatic peripheral neuropathy \> grade 2 according to NCI Known severe allergy to any drugs in this study Has cadiac Dysfunction or lung dysfunction defined as follows: 1. grade ≥3 CHF according to NCI CTCAE v 4.0 or NYHA≥II 2. angina which requires drug control ,cardiac infraction,and any other vascular disease with apparent clinical symptoms 3. uncontrolled high-risk arryhthmia 4. unconrolled hypertension Has active hepatitis B or hepatitis C with abnormal liver function tests (LFTs) or is known to be HIV positive Patient is pregnant or breast feeding \-

Design outcomes

Primary

MeasureTime frameDescription
Disease-free Survival3-year estimatesEstimated percentage of patients alive and disease-free at 3 years from randomization, where disease-free survival is defined as the time from the date of surgery to the first appearance of one of the following: breast cancer in situ or invasive breast cancer recurrence at local, regional, or distant site, invasive contralateral breast cancer, second (non-breast) invasive cancer, or death without cancer event; or censored at date of last follow-up.

Secondary

MeasureTime frameDescription
Breast Cancer Specific Survival3-year estimatesDefined as the time from the date of surgery to death from breast cancer relapse; or censored at date last known alive.
Overall Survival3-year estimatsDefined as the time from the date of surgery to death from any cause; or censored at date last known alive.
Treatment-related adverse eventsup to 4 monthsIncidence and severity of adverse events as assessed by NCI CTCAE V4.0
Change of LVEF after treatmentup to 4 monthsThe change of LVEF after 12 weeks treatment compared to the baseline LVEF

Countries

China

Contacts

PRINCIPAL_INVESTIGATORLi Zhu, doctor

Shanghai Jiao Tong University School of Medicine

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 3, 2026