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Gemcitabine, Trastuzumab, and Pertuzumab in the Treatment of Metastatic HER2-Positive Breast Cancer After Prior Trastuzumab/Pertuzumab, or Pertuzumab Based Therapy

Phase II Study of Gemcitabine, Trastuzumab, and Pertuzumab in the Treatment of Metastatic HER2-Positive Breast Cancer After Prior Trastuzumab/Pertuzumab- or Pertuzumab-Based Therapy

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02252887
Enrollment
45
Registered
2014-09-30
Start date
2015-01-12
Completion date
2025-07-24
Last updated
2026-07-24

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

Conditions

Metastatic HER2-Positive Breast Cancer

Keywords

Gemcitabine,, Trastuzumab, Pertuzumab, 14-124

Brief summary

The purpose of this study is to see if a combination of drugs can help to treat breast cancer. This is a Phase II study which will test whether this combination of drugs is effective and will provide further information on side effects and safety. A standard chemotherapy, gemcitabine, will be combined with 2 other drugs that target the HER2 receptor. The HER2 receptor is a growth protein on the surface of some breast cancer cells that provides messages telling the breast cancer cell to grow. The standard chemotherapy will be gemcitabine.. The other two drugs work against HER2. One is called trastuzumab (Herceptin) and it is commonly given to women with advanced and early HER2 positive breast cancer. The other drug, pertuzumab (Perjeta), is also given to women with advanced HER2 positive breast cancer. The drugs in this study are each individually approved for the treatment of metastatic breast cancer. However, this study is looking at the effectiveness of gemcitabine with trastuzumab and pertuzumab when given to women who have advanced HER2 positive breast cancer who have had prior trastuzumab + pertuzumab or pertuzumab-based therapy.

Interventions

DRUGGemcitabine
DRUGTrastuzumab
DRUGPertuzumab

Sponsors

Memorial Sloan Kettering Cancer Center
Lead SponsorOTHER
Genentech, Inc.
CollaboratorINDUSTRY
Hoffmann-La Roche
CollaboratorINDUSTRY
Hartford HealthCare
CollaboratorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age ≥ to 18 * Stage IV HER2 (+) breast cancer * Histologically documented HER2 (+) breast cancer as defined as IHC 3+ or FISH amplification of ≥ 2.0 of primary or metastatic site; results from the local lab are acceptable. * lECOG performance status 0 -1 * Prior treatment with trastuzumab + pertuzumab (HP)-based therapy or pertuzumab-based in the neoadjuvantadjuvant, unresectable, locally advanced, or metastatic setting. * ≤ 3 prior chemotherapies in the metastatic setting. Prior anthracycline, taxane, gemcitabine, and anti-HER2 agents (i.e. trastuzumab, pertuzumab, lapatinib, neratinib, TDM-1, etc.) are allowed. If patients received prior gemcitabine, it could not have been combined with pertuzumab. Patients should have progression of disease on current therapy. * Measurable or non-measurable disease. * LVEF ≥ 50% * Hematologic parameters: white blood cell (WBC) count of ≥ 3000/ul, absolute neutrophil count (ANC) ≥ 1000/ul, platelets ≥ 100,000/ul, hemoglobin ≥10.0 g/dl * Non-hematologic parameters: bilirubin ≤ 1.5 mg/dl, AST/ALT≤ 2.5 x upper limit of normal (ULN), alkaline phosphatase ≤ 5 x ULN. * Creatinine ≤ 1.5 mg/dl * Patients with "treated and stable" brain lesions of a duration of ≥ 2 months may be enrolled.

Exclusion criteria

* History of prior unstable angina, myocardial infarction, CHF, uncontrolled ventricular arrhythmias within 12 months * History of prior ≥ G 3 hypersensitivity (HSR) or any toxicity to trastuzumab or pertuzumab that warranted permanent cessation of this agent * History of hepatitis B or C * Pregnant patients

Design outcomes

Primary

MeasureTime frameDescription
Progression Free3 monthsProgression-free survival (PFS) is defined from time from treatment assignment to disease progression or death, whichever comes first. The primary endpoint is PFS and secondary endpoint will include the response rate using the RECIST criteria (version 1.1).

Secondary

MeasureTime frameDescription
Progression-free Survival2 yearsProgression-free survival (PFS) is defined from time from treatment assignment to disease progression or death, whichever comes first.
Response3 monthsResponse to treatment will be determined using both RECIST and PRC ( PET Response Criteria criteria).
Overall Survival3 monthsProgression-free survival and median overall survival will also be estimated by the Kaplan-Meier method.
Number of Participants With Grade 3+ Adverse Events2 yearsThis study will use the NCI Common Toxicity Criteria (CTC) AE version 4.0 for toxicity. Grade 3 or higher AEs

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORChau Dang, MD

Memorial Sloan Kettering Cancer Center

Baseline characteristics

Characteristic
Age, Continuous57.1 years
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
37 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
4 Participants
Race (NIH/OMB)
Black or African American
6 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
3 Participants
Race (NIH/OMB)
White
32 Participants
Region of Enrollment
United States
45 Participants
Sex: Female, Male
Female
45 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
20 / 45
other
Total, other adverse events
45 / 45
serious
Total, serious adverse events
8 / 45

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 25, 2026