Neoplasms

Skin and Connective Tissue Diseases

All Conditions

Breast Neoplasms

Breast Diseases

Skin Diseases

Antineoplastic Agents

All Drugs and Chemicals

Amino Acids

Paclitaxel

Albumin-Bound Paclitaxel

Lapatinib

Tubulin Modulators

Antimitotic Agents

Tyrosine Kinase Inhibitors

Protein Kinase Inhibitors

Enzyme Inhibitors

Tyrosine

Subjects will receive a daily dose of lapatinib until disease progression or withdrawal from study treatment due to unacceptable toxicity or withdrawal of consent. Subjects will be treated with paclitaxel for at least 6 months, and may continue on paclitaxel at the discretion of the Investigator, or discontinued sooner if the subject has disease progression, an unacceptable toxicity or withdraws consent.

Lapatinib will be given as tablets contain 410 mg of lapatinib ditosylate monohydrate, equivalent to 250 mg lapatinib free base per tablet. Subjects will be given a 4 week supply of lapatinib tables and instructed to take 6 tablets daily (1500 mg daily dose) orally at the same time each day. Subjects will receive a daily dose of lapatinib until disease progression or withdrawal from study treatment due to unacceptable toxicity or withdrawal of consent.

Lapatinib oral tablets

Subjects will receive weekly paclitaxel (80 mg/m2 IV for 3 weeks in a 4 week cycle). Subjects will be treated with paclitaxel for at least 6 months, and may continue on paclitaxel at the discretion of the Investigator, or discontinued sooner if the subject has disease progression, an unacceptable toxicity or withdraws consent.

Paclitaxel infusion

GSK Clinical Trials

This study investigates the safety and efficacy of oral lapatinib in combination with an approved medication, paclitaxel, for patients with ErbB2 metastatic breast cancer.

Lapatinib Combined With Paclitaxel For Patients With First-Line ErbB2-Amplified Metastatic Breast Cancer

An Open-label, Single-arm, Multi-centre, Phase II Study of Oral Lapatinib in Combination With Paclitaxel as First-line Treatment for ErbB2-amplified Metastatic Breast Cancer Patients

OR is defined as the number of participants achieving either a CR or PR, per Response Evaulation Criteria in Solid Tumors (RECIST). The best OR is defined as the best response recorded from the start of treatment until progressive disease (PD)/recurrence. CR is defined as the disappearance of all target lesions (TLs) and non-TLs. PR is defined as at least a 30% decrease in the sum of the longest diameters (LD) of TLs, taking as a reference the Baseline sum LD and no PD, or complete resolution of TLs and the persistence of one or more non-TL(s), as assessed by the IRC. PD is defined as at least a 20% increase in the sum of the LD of TLs, taking as a reference the smallest sum LD recorded since the treatment started or the appearance of one or more new lesions or unequivocal progression of existing non-TLs. Responses were confirmed at subsequent assessments made \>=28 days after the original response. Participants with an unknown or missing response are treated as non-responders.

OR is defined as the number of participants achieving either a CR or PR, per RECIST. The best OR is defined as the best response recorded from the start of treatment until progressive disease (PD)/recurrence. CR is defined as the disappearance of all target lesions (TLs) and non-TLs. PR is defined as at least a 30% decrease in the sum of the longest diameters (LD) of TLs, taking as a reference the Baseline sum LD and no PD, or complete resolution of TLs and the persistence of one or more non-TL(s), as assessed by the Investigator. PD is defined as at least a 20% increase in the sum of the LD of TLs, taking as a reference the smallest sum LD recorded since the treatment started or the appearance of one or more new lesions or unequivocal progression of existing non-TLs. Responses were confirmed at subsequent assessments made \>=28 days after the original response. Participants with an unknown or missing response are treated as non-responders.

DoR is defined for the subset of participants who had a confirmed CR (disappearance of all TLs and non-TLs) or PR (\>=30% decrease in the sum of the LD of TLs, taking as a reference the Baseline sum LD and no PD, or complete resolution of TLs and the persistence of one or more non-TL\[s\]) as the time from the first documented evidence of a CR or PR until the first documentation of radiological PD or death due to breast cancer, if sooner. PD is defined as a \>=20% increase in the sum of the LD of TLs, taking as a reference the smallest sum LD recorded since the treatment started or the appearance of one or more new lesions or unequivocal progression of existing non-TLs. For participants who did not progress or die, DoR was censored on the date of the last radiological scan. If a participant had only a Baseline visit or did not have a date of a radiological scan that was later than the date of initiation of anti-cancer therapy, DoR was censored at the start date of treatment.

Time to response is defined as the time from randomization until the first documented evidence of a PR or CR (whichever status is recorded first). Analysis was based on responses confirmed at a repeat assessment made at least 4 weeks after the initial response, with the time to response taken as the first time the response was observed, not the confirmation assessment. Participants who withdraw with no tumor response were censored at the date of withdrawal from the study. CR is defined as the disappearance of all TLs and non-TLs. PR is defined as at least a 30% decrease in the sum of the LD of TLs, taking as a reference the Baseline sum LD and no PD, or complete resolution of TLs and the persistence of one or more non-TL(s). PD is defined as at least a 20% increase in the sum of the LD of TLs, taking as a reference the smallest sum LD recorded since the treatment started or the appearance of one or more new lesions or unequivocal progression of existing non-TLs.

Time to progression is defined as the interval between the start date of treatment and the date of radiological disease progression or death due to breast cancer, whichever occurs first. Participents who did not progress or die were censored on the date of their last radiological assessment preceding the start of any additional anti-cancer therapy. PD is defined as at least a 20% increase in the sum of the LD of TLs, taking as a reference the smallest sum LD recorded since the treatment started or the appearance of one or more new lesions or unequivocal progression of existing non-TLs. Responses were confirmed at a subsequent assessment made no less than 28 days after the original response.

Progression-free survival is defined as the interval between the start date of treatment and the date of radiological disease progression or death due to any cause, whichever occurs first. Participants who did not progress in their disease were censored on the date of their last radiological assessment preceding the start of any additional anti-cancer therapy. PD is defined as at least a 20% increase in the sum of the LD of TLs, taking as a reference the smallest sum LD recorded since the treatment started or the appearance of one or more new lesions or unequivocal progression of existing non-TLs. Responses were confirmed at a subsequent assessment made no less than 28 days after the original response.

Overall survival is defined as the interval between the date of treatment start and the date of death due to any cause. For participants who did not die, follow-up was censored as the date of last contact. For participants who did not die, follow-up was censored at the date of last contact.

An AE is defined as any untoward medical occurrence in a participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. An SAE is defined as any untoward medical occurrence that, at any dose, results in death, is life threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, or is a congenital anomaly/birth defect. Medical or scientific judgment was exercised in deciding whether reporting was appropriate in other situations.

GlaxoSmithKline

SAEs and non-serious AEs are reported for members of the ITT Population, comprised of all participants who received study medication.

Participants received lapatinib 1500 mg orally OD with paclitaxel, administered as a 1-hour IV infusion at a dose of 80 mg/m\^2 on Days 1, 8, and 15 (±2 days) of a 28-day treatment cycle for at least 6 months. Participants were treated until disease progression, unacceptable toxicity, or consent withdrawal.

Lapatinib Plus Paclitaxel

Age, Continuous

Sex: Female, Male

White - White/Caucasian/European Heritage

Race/Ethnicity, Customized

GSK Response Center

Intent-to-Treat (ITT) Population: all participants who received study medication.

Number of Participants With a Best Overall Response (OR) of Confirmed Complete Response (CR) or Partial Response (PR), as Assessed by the Independent Review Committee (IRC)

Number of Participants With a Best Overall Response (OR) of Confirmed Complete Response (CR) or Partial Response (PR), as Assessed by the Investigator

Overall Study Arm

ITT Population. Only those participants with CR or PR were analyzed.

Duration of Response (DoR), as Assessed by the IRC

Duration of Response (DoR), as Assessed by the Investigator

Time to Response, as Assessed by the IRC

Time to Response, as Assessed by the Investigator

Investigator

Time to Progression, as Assessed by the IRC and the Investigator

Progression-free Survival, as Assessed by the IRC and the Investigator

Overall Survival

Any AE

Any SAE

Number of Participants With Any Adverse Event (AE) or Serious Adverse Event (SAE)

Participants received lapatinib 1500 milligrams (mg) orally once daily (OD) with paclitaxel, administered as a 1-hour intravenous (IV) infusion at a dose of 80 mg/meters squared (m\^2) on Days 1, 8, and 15 (±2 days) of a 28-day treatment cycle for at least 6 months. Participants were treated until disease progression, unacceptable toxicity, or consent withdrawal.

Spots Global Cancer Trial Database for Lapatinib Combined With Paclitaxel For Patients With First-Line ErbB2-Amplified Metastatic Breast Cancer

Trial Identification

Conditions

Interventions

Study Description

Keywords

Eligibility

Locations

Contact Details

Useful links and downloads for this trial