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Continued HER2 Suppression With Lapatinib Plus Trastuzumab Versus Trastuzumab Alone

NCT00968968 · Status: TERMINATED · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 37

Last updated 2019-06-10

Study results available
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Summary

This was a randomized, open-label, multi-center Phase III study evaluating the efficacy and safety of lapatinib in combination with trastuzumab versus trastuzumab alone as continued HER2 suppression therapy in women with HER2-positive metastatic breast cancer (MBC). Eligible subjects should have completed 12 to 24 weeks of first- or second-line treatment with trastuzumab plus chemotherapy, experienced either complete disappearance of all metastatic lesions, or persistence of metastatic disease (stable disease) without unequivocal progression or the occurrence of new lesions, and been indicated to continue to receive trastuzumab alone as maintenance therapy. Eligible subjects who entered the LPT112515 study on first-line treatment should not have known history of central nervous system (CNS) metastases; subjects who entered the study on second-line treatment should not have known history of CNS metastases or have stable (asymptomatic and off steroids ≥3 months) CNS metastases. The primary objective of this study was to compare progression-free survival (PFS) in subjects with HER2-positive MBC randomized to receive treatment with lapatinib plus trastuzumab versus those randomized to receive trastuzumab alone. The secondary objectives included overall survival, clinical benefit response rate (CR, PR or SD ≥24 weeks) and the qualitative and quantitative adverse event profile of the 2 treatment arms. It was estimated that 280 subjects (140 per group) would be required to observe 193 PFS events.

Conditions

Interventions

DRUG

Lapatinib

Oral Lapatinib 1000 mg once daily. Lapatinib was a small molecule, reversible inhibitor targeting HER2 tyrosine kinase receptor.

BIOLOGICAL

Trastuzumab

IV Trastuzumab 6 mg/kg every three weeks. Trastuzumab was a humanized, monoclonal antibody directed against the extracellular domain of the HER2 tyrosine kinase receptor.

Sponsors & Collaborators

Principal Investigators

  • Novartis Pharmaceuticals · Novartis Pharmaceuticals

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE

Eligibility

Min Age
18 Years
Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2010-01-20
Primary Completion
2014-02-21
Completion
2018-03-30
FDA Drug
Yes

Countries

  • United States
  • Canada

Study Locations

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Entities

Drugs
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 NCT00968968 on ClinicalTrials.gov