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CompletedNCT00371488Updated Aug 31, 2018

GW572016 Combined With Trastuzumab For The Treatment Of Previously Trastuzumab-Treated Breast Cancer

A Phase 1 interventional study of GW572016 oral tablets in Neoplasms, Breast, sponsored by GlaxoSmithKline. Completed at 2 sites in Japan. Open to participants aged 20 Years to 74 Years. Per ClinicalTrials.gov, last updated 2018-08-31.

Sponsored by GlaxoSmithKline · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Registered 4 months after the study started (first participant enrolled Apr 2006, registered Aug 2006).
Phase
Phase 1
Study type
Interventional
Enrollment
11
Allocation
Non-randomized
Ages
20 Years to 74 Years
Sex
All
01

Study summary

This is two-part study (Phase I/Phase II). Part I is designed to find the optimal (best) doses of GW572016 and trastuzumab when given together,Part II is designed to evaluate the tumor response rate (shrinkage or lack of growth) in patients receiving lapatinib and trastuzumab.

02

Conditions studied

  • Neoplasms, Breast

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Keywords

  • ErbB2
  • Stage IV breast cancer
  • ErbB1
  • breast cancer
  • lapatinib
  • Herceptin
  • trastuzumab
03

In context

Breast Neoplasms

12,544 studies on the registry are indexed under Breast Neoplasms; 2,892 are open to participants now.

This study's enrollment of 11 is below the median of 72 across 9,303 interventional studies indexed under Breast Neoplasms.

Browse Breast Neoplasms studies →

Lead sponsor

GlaxoSmithKline is the lead sponsor of 3,562 studies on the registry; 117 are open to participants now.

Of its 258 completed or terminated interventional studies of FDA-regulated products, 232 (90%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
20 Years to 74 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Patients with confirmed breast cancer who have received prior trastuzumab.
  • Patients must have adequate blood, liver, and kidney function and either be fully active or restricted only in performing strenuous activity.
  • Female patients of child-bearing potential must be willing to abstain from intercourse from 2 weeks prior to administration of the first dose of study medication until 28 days after the final dose of study medication or be willing to consistently and correctly use an acceptable method of birth control.

Exclusion criteria

Exclusion criteria:

  • Patients with certain heart problems.
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Single group
Masking
None (open label)
Enrollment
11 participants (actual)

Study arms

  • Experimental
    GW572016 in combination with trastuzumab

    Lapatinib: A specified dose of lapatinib will be orally taken once daily, at least one hour before or one hour after the morning meal. Lapatinib should be taken at the same time of day wherever possible. The starting dose of lapatinib should be 750 mg/day, which will be increased to 1000 mg/day (dose escalation group) according to the dose escalation criteria. Trastuzumab: Trastuzumab (4 mg/kg/day in the first week and 2 mg/kg/day for the 2nd and subsequent weeks) will be administered by intravenous infusion over at least 90 minutes immediately after administration of lapatinib. The fifth (Day 36) and subsequent doses may be administered up to 3 days after the scheduled date. In this case, however, the all following doses should be administered at one-week intervals.

    Drug: GW572016 oral tablets

Interventions

  • DrugGW572016 oral tablets

    Tablets contain 405mg of lapatinib ditosylate monohydrate, equivalent to 250mg lapatinib free base per tablet. Oval, orange, film-coated tablets.

06

What researchers measure

Primary outcomes

  1. Optimal doses and toleration of the two drugs administered together Tumor progression measured by radiological imaging 4-8 weekly

    To confirm the safety and tolerability of the recommended dose of lapatinib in combination with trastuzumab which was determined in a preceding overseas study, and to determine the recommended dose in Japan.

    Time frame: 6 Months

Secondary outcomes

  1. Clinical benefit Time to tumor response Length of response Time to progression of cancer 6 month progression free survival Overall survival as well as specific biomarkers in tumor tissue

    Time frame: 6 Months

07

Study locations

2 sites
  • GSK Investigational Site
    Saitama, 350-1298, Japan
  • GSK Investigational Site
    Tokyo, 135-8550, Japan
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 31, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00371488
Lead sponsor
GlaxoSmithKline
Responsible party
Sponsor
First posted
Sep 4, 2006
Start date
Apr 6, 2006
Primary completion
Dec 10, 2007
Completion
Dec 10, 2007
Last update
Aug 31, 2018

Study contacts

GSK Clinical Trials
study director · GlaxoSmithKline

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2018. You cannot join it, but the record below documents what was studied.

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