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A phase II neoadjuvant trial of concurrent trastuzumab, paclitaxel and endocrine therapy in women with HER2-positive and hormone receptor-positive breast cancer.

A phase II neoadjuvant trial of concurrent trastuzumab, paclitaxel and endocrine therapy in women with HER2-positive and hormone receptor-positive breast cancer. - HERPLET

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000009108
Enrollment
50
Registered
2012-10-17
Start date
2012-10-17
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

women with HER2-positive and hormone receptor-positive breast cancer

Interventions

Eligible premenopausal women receive tamoxifen 20mg/d orally and trastuzumab is given with a loading dose of 4 mg/kg
subsequent doses are 2 mg/kg every week. In addition, paclitaxel is given at a dose of 80 mg/m2
every week for 12 weeks. Eligible postmenopausal women receive letrozole 2.5mg/d orally and trastuzumab is given with a loading dose of 4 mg/kg
every week for 12 weeks.

Sponsors

Keio University School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: 1. Histologically confirmed invasive breast cancer 2. ER and or PgR-positive, HER2-positive 3. Measurable disease 4. Stage I , II or III 5. Age at 20 or older and at 75 or younger. 6. Performance status 0 or 1 7. Untreated breast cancer 8. Meet the cirteria of baseline labolatory parameters as below. 1) WBC 3500/mm3 or more, 10000/mm3 or less, Plt 100,000/mm3 or more, Hb 10g/dl or more 2) T.Bil 1mg/dl or less, GOT 60 IU/L or less, GPT 60 IU/L or less 9. Written informed consent

Exclusion criteria

Exclusion criteria: 1. Other active malignancies 2. Hemorrhagic diathesis 3. History of cardiac infarction, valvular diseases of the heart and severe cardiac disfunction 4. Liver cirrhosis 5. Other medical conditions that could limit a patient's ability to undertake study therapy

Design outcomes

Primary

MeasureTime frame
clinical response rate, tumor reduction rate

Secondary

MeasureTime frame
pathological CR rate, adverse event, breast conserving rate, relapse free survival

Countries

Japan

Contacts

Public ContactTetsu Hayashida

Keio University School of Medicine Department of Surgery, breast group

tetsu@z7.keio.jp03-5363-3802

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026