A Study of Herceptin (Trastuzumab) in Women With Metastatic Breast Cancer

Breast Cancer Clinical Trial

Official title:

An Open-label Study of the Effect of First-line Herceptin Alone or in Combination With a Taxane on Tumor Response and Disease Progression in Patients With Metastatic Breast Cancer Who Relapsed After Receiving Adjuvant Herceptin for HER2-positive Early Breast Cancer

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT00475670
• Other study ID #: WO17299
• Status: Completed
• Phase: Phase 2
• First received: May 17, 2007
• Last updated: September 9, 2014
• Start date: October 2005
• Est. completion date: June 2012

Study information

• Verified date: September 2014
• Source: Hoffmann-La Roche
• Contact: n/a
• Is FDA regulated: No
• Health authority: Australia: Ministry of Health
• Study type: Interventional

Clinical Trial Summary

This 2 arm study will assess the efficacy and safety of intravenous Herceptin with or without a taxane for the first line treatment of metastatic breast cancer in women who have relapsed at least 12 months after a minimum of 10 months of (neo)adjuvant treatment with Herceptin for HER2-positive early breast cancer.Patients will receive either Herceptin monotherapy (loading dose of 4mg/kg iv, followed by weekly doses of 2mg/kg iv, or 8mg/kg loading dose followed by 3-weekly doses of 6mg/kg)or Herceptin + a taxane (docetaxel 100mg/m2 iv every 3 weeks, or paclitaxel 175mg/m2 iv every 3 weeks or 75mg/m2 every week). The anticipated time on study treatment is until disease progression, and the target sample size is <100 individuals.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 44
• Est. completion date: June 2012
• Est. primary completion date: June 2012
• Accepts healthy volunteers: No
• Gender: Female
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• at least 10 months of Herceptin treatment for HER2-positive early breast cancer;

• metastatic breast cancer >=12 months after discontinuation of Herceptin;

• measurable disease.

Exclusion Criteria:

• previous chemotherapy for metastatic breast cancer;

• brain metastases;

• invasive malignancy other than metastatic breast cancer.

Study Design

Allocation: Non-Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

• Breast Cancer
• Breast Neoplasms

Intervention

Drug:
• Trastuzumab
4 mg/kg i.v. loading dose on Day 1, followed by 2 mg/kg i.v. weekly; or 8 mg/kg i.v. loading dose, followed by 6 mg/kg i.v. every 3 weeks until disease progression, unacceptable toxicity, withdrawal or death.
• Taxane (docetaxel or paclitaxel)
Docetaxel 100 mg/m2 i.v. every 3 weeks, or paclitaxel administered in a dose of 75 mg/m2 i.v. weekly or 175 mg/m2 i.v. every 3 weeks for at least 18 weeks, or more at the discretion of the investigator. Choice of taxane at the discretion of the investigator. Taxane may be administered at the same time, or 24 hours after, administration of trastuzumab.

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
Hoffmann-La Roche

Countries where clinical trial is conducted

Australia,  Austria,  Belgium,  Brazil,  Canada,  China,  Germany,  Hungary,  Italy,  Mexico,  Panama,  Poland,  Russian Federation,  Spain,  Taiwan, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Percentage of Participants Achieving Complete Response (CR) or Partial Response (PR) According to the Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.0 Guidelines	CR was defined for target lesions (TLs) as the disappearance of all lesions, and for nontarget lesions (NTLs) as the disappearance of all nontarget nonmeasurable lesions. PR was defined for TLs as at least a 30 percent (%) decrease from baseline (BL) in the sum of longest diameter (SLD) of TLs. 95% confidence interval for one-sample binomial using Pearson-Clopper method.	Baseline (BL); Day 1 of Weeks 7, 13, 19, 25, 37, and 52, at the last administration of study treatment, every 24 weeks thereafter until disease progression for up to 6 months after the last participant was recruited	No
Secondary	Duration of Response - Percentage of Participants With Progressive Disease or Death	Duration of response was defined as the time from first confirmed CR or PR until death or progressive disease (PD). For TLs, PD was defined as at least a 20% increase in the SLD of the TL, taking as reference the smallest SLD recorded since the beginning of treatment or the appearance of one or more new lesions. For NTLs, PD was defined as the appearance of one or more new lesions or unequivocal progression of existing non target non-measurable lesions. Participants were censored at the date of the last tumor assessment.	BL, Day 1 of Weeks 7, 13, 19, 25, 37, and 52, at the last administration of study treatment, every 24 weeks thereafter until disease progression for up to 6 months after the last participant was recruited	No
Secondary	Duration of Response	The time, in months, from when the response (CR or PR) was first noted until the date of documented PD, death, or withdrawal, whichever occurred first. Participants were censored at the date of the last tumor assessment.	BL, Day 1 of Weeks 7, 13, 19, 25, 37, and 52, at the last administration of study treatment, every 24 weeks thereafter until disease progression for up to 6 months after the last participant was recruited	No
Secondary	Progression-free Survival (PFS) - Percentage of Participants With Progressive Disease	PFS was defined as the time from day of first study drug infusion until death or PD. Participants were censored at the date of the last tumor assessment.	BL, Day 1 of Weeks 7, 13, 19, 25, 37, and 52, at the last administration of study treatment, every 24 weeks thereafter until disease progression for up to 6 months after the last participant was recruited	No
Secondary	Progression-Free Survival	The time, in months, from BL to PFS event.	BL, Day 1 of Weeks 7, 13, 19, 25, 37, and 52, at the last administration of study treatment, every 24 weeks thereafter until disease progression for up to 6 months after the last participant was recruited	No
Secondary	Percentage of Participants With Treatment Failure	Treatment failure was defined as the time from first study drug infusion to failure. Failure was defined as any of the following: PD, death, withdrawal due to adverse event (AE) or lab abnormality, or refusal of treatment. Participants were censored at the last date recorded in the case report form (CRF) or the date of withdrawal.	BL, Day 1 of Weeks 7, 13, 19, 25, 37, and 52, at the last administration of study treatment, every 24 weeks thereafter until disease progression for up to 6 months after the last participant was recruited	No
Secondary	Time to Treatment Failure	The time, in months, from BL to treatment failure.	BL, Day 1 of Weeks 7, 13, 19, 25, 37, and 52, at the last administration of study treatment, every 24 weeks thereafter until disease progression for up to 6 months after the last participant was recruited	No
Secondary	Percentage of Participants With Clinical Benefit According to RECIST Guidelines	Clinical benefit was defined as stable disease (SD) for 6 months or longer, or a confirmed overall response of CR or PR. For TLs, SD was defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD, taking as reference the smallest SLD since the beginning of treatment. For NTLs, SD was synonymous with incomplete response and defined as the persistence of one or more NTLs and/or maintenance of tumor marker level above the normal limits.	BL, Day 1 of Weeks 7, 13, 19, 25, 37, and 52, at the last administration of study treatment, every 24 weeks thereafter until disease progression for up to 6 months after the last participant was recruited	No
Secondary	Overall Survival - Percentage of Participants Who Died	OS was defined as the time from the date of enrollment to the date of death due to any cause. Participants were censored at the last date recorded in the CRF.	BL, Day 1 of Weeks 1, 4, 7, 10, 13, 16, 19, 25, 37, and 5 at the last administration of study treatment, every 24 weeks thereafter until disease progression or death, yearly thereafter up to 2 years after cessation of recruitment	No
Secondary	Overall Survival	The time, in months, from BL to death due to any cause.	BL, Day 1 of Weeks 1, 4, 7, 10, 13, 16, 19, 25, 37, and 52 at the last administration of study treatment, every 24 weeks thereafter until disease progression or death, yearly thereafter up to 2 years after cessation of recruitment	No