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Prospective, Randomized, Single-Blinded, Multi-Center Phase II Trial of the HER2/neu Peptide GP2 + GM-CSF Vaccine versus GM-CSF Alone in HLA-A2+ OR the Modified HER2/neu Peptide AE37 + GM-CSF Vaccine versus GM-CSF Alone in HLA-A2- Node-Positive and High-Risk Node-Negative Breast Cancer Patients to Prevent Recurrence - BR-HER-GP2-AE37

Prospective, Randomized, Single-Blinded, Multi-Center Phase II Trial of the HER2/neu Peptide GP2 + GM-CSF Vaccine versus GM-CSF Alone in HLA-A2+ OR the Modified HER2/neu Peptide AE37 + GM-CSF Vaccine versus GM-CSF Alone in HLA-A2- Node-Positive and High-Risk Node-Negative Breast Cancer Patients to Prevent Recurrence - BR-HER-GP2-AE37

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2007-000934-38-GR
Enrollment
600
Registered
2007-06-05
Start date
2007-10-30
Completion date
Unknown
Last updated
2018-07-23

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

Conditions

Disease-free, conventionally treated node-positive and high-risk node-negative breast cancer patients who are at significant risk for recurrence. MedDRA version: 9.1 Level: LLT Classification code 10006187 Term: Breast cancer

Interventions

Product Name: HER2/neu, 654-661 Product Code: GP2 Pharmaceutical Form: Powder for injection* Pharmaceutical form of the placebo: Solution for injection Route of administration of the placebo: Intrader

Sponsors

Generex Biotechnology Corporation
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. NP or high-risk NN breast cancer patients. The latter is defined as any one of the following: T2, grade 3, lymphovascular invasion, ER/PR negative, or N0 (i+). 2. HER2/neu-expressing tumor (IHC 1-3+ and/or positive FISH >1.2) 3. Completion of primary standard of care breast cancer therapies (i.e., surgery, chemotherapy, immunotherapy and radiation therapy as appropriate per standard of care for patients’ specific cancer) 4. Clinically cancer-free (no evidence of disease) 5. Patients may be enrolled between 1-6 months from completion of standard primary breast cancer therapies. 6. Immunologically intact by recall anergy testing 7. Good performance status 8. Capable of informed consent Are the trial subjects under 18? Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: 1. HER2/neu- breast cancers (IHC 0) 2. Clinical and/or radiographic evidence of residual or persistent breast cancer 3. Anergic by the Mantoux panel of recall antigens 4. Receiving immunosuppressive therapy to include chemotherapy, steroids, or methotrexate 5. In poor health (Karnofsky 2) 6. Tbili >1.8, creatinine>2, hemoglobin<10, platelets<50,000, WBC<2,000 7. Active pulmonary disease requiring medication to include multiple inhalers 8. Pregnancy (urine HCG) 9. Breast feeding 10. History of autoimmune disease 11. Involved in other experimental protocols

Design outcomes

Primary

MeasureTime frame
Main Objective: 1) To determine if the GP2 + GM-CSF vaccine reduces the recurrence rate in HLA-A2+, HER2/neu+, node-positive or high-risk node-negative breast cancer patients randomized to receive either the vaccine versus the immunoadjuvant, GM-CSF, alone. 2) To determine if the AE37 + GM-CSF vaccine reduces the recurrence rate in HLA-A2-, HER2/neu+, node-positive or high-risk node-negative breast cancer patients randomized to receive either the vaccine versus the immunoadjuvant, GM-CSF, alone. ;Secondary Objective: 1) To monitor the in vitro and in vivo immunologic responses to the vaccines and correlate these responses with the clinical outcomes. 2) To monitor for any unexpected toxicities with the vaccines. ;Primary end point(s): The purpose of this study is to determine if either or both of the peptides, GP2 and AE37, used as vaccines can prevent recurrence in disease-free, conventionally treated node-positive and high-risk node-negative breast cancer patients who are at significant risk for recurrence. Ultimately, we are interested in using these peptides in a highly efficient and clinically beneficial multi-epitope HER2/neu vaccine.

Countries

Greece

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026