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HER2 Directed Dendritic Cell Vaccine During Neoadjuvant Therapy of HER2+Breast Cancer

H. Lee Moffitt Cancer Center and Research Institute logo

H. Lee Moffitt Cancer Center and Research Institute

Status and phase

Active, not recruiting
Early Phase 1

Conditions

Breast Cancer
Breast Cancer Female
HER2 Positive Breast Carcinoma
Stage II Breast Cancer
Stage III Breast Cancer
HER2-positive Breast Cancer
Invasive Breast Cancer
Breast Cancer, Male

Treatments

Drug: Neoadjuvant Chemotherapy
Biological: Dendritic Cell Vaccine (DC1)
Procedure: Curative Surgery

Study type

Interventional

Funder types

Other
Other U.S. Federal agency

Identifiers

NCT03387553
MCC-19337

Details and patient eligibility

About

The purpose of this study is to learn more about how to treat patients with HER-2/neu positive invasive breast cancer (IBC). HER-2/neu is a type of protein that is known to be over-expressed in aggressive breast cancer.

The study drug for this trial is DC1 study vaccine which is a HER2-sensitized dendritic cell (DC) study vaccine. This study vaccine is made from the participant's blood cells collected from a procedure called leukapheresis. Dendritic cells are immune cells that can tell the immune system to fight infection. In laboratory testing and from previous studies in participants, these cells may also help the immune system attack tumors such as breast cancer.

Full description

The trial will consist of two phases. The first lead in phase will enroll 12 participants evenly divided into two arms (alternating enrollment) with different initial priming study vaccination schedules.

Arm A: One DC1 study vaccination per week x 3 weeks. Arm B: Two DC1 study vaccinations per week (given 3 days apart for example Mon and Thurs or Tues and Friday) x 3 weeks.

Following accrual of this initial group of 12 participants, HER2 ELISPOT post study vaccination responses will be assessed to determine which of the two sequences provides the greater increase in anti HER2 response at week 4 over baseline. This will determine which sequence will be used in the second expansion phase of accrual. If both arms are determined equal then Arm A will be selected as the default sequence.

Second phase of accrual will consist of 14 additional participants to undergo study vaccination using the optimal schedule declared in the first phase of the trial. The trial will consist of two phases. The first lead in phase will enroll 12 participants evenly divided into two arms (alternating enrollment) with different initial priming study vaccination schedules.

Arm A: One DC1 study vaccination per week x 3 weeks Arm B: Two DC1 study vaccinations per week (given 3 days apart for example Mon and Thurs or Tues and Friday) x 3 weeks.

Following accrual of this initial group of 12 participants, HER2 ELISPOT post study vaccination responses will be assessed to determine which of the two sequences provides the greater increase in anti HER2 response at week 4 over baseline. This will determine which sequence will be used in the second expansion phase of accrual. If both arms are determined equal then Arm A will be selected as the default sequence.

Second phase of accrual will consist of 14 additional participants to undergo study vaccination using the optimal schedule declared in the first phase of the trial.

Enrollment

31 patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Participants must have histologically confirmed clinical stage II or III ERPR- HER2+ (per CAP criteria) invasive carcinoma of the breast

  • Medically and surgically appropriate to undergo neoadjuvant chemotherapy with TCH-P Taxotere (docetaxel), Carboplatin, Herceptin (trastuzumab), Perjeta (pertuzumab) regimen followed by standard of care local therapy as determined by their treating physician

  • Age ≥18 years.

  • Eastern Cooperative Oncology Group (ECOG) performance status less than 2

  • Patients must have normal organ and marrow function as defined below:

    • leukocytes ≥3,000/μL
    • absolute neutrophil count ≥1,500/μL
    • platelets ≥100,000/μL
    • total bilirubin within normal institutional limits
    • AST(SGOT)/ALT(SGPT) less than or equal to 2.5 X institutional upper limit of normal
    • creatinine within normal institutional limits - OR -
    • creatinine clearance ≥60 mL/min/1.73 m^2 for patients with creatinine levels above institutional normal
  • Cardiac ejection fraction within institutional normal limits by either MUGA or ECHO at baseline.

  • Women of child-bearing potential and their male partners must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately. Sexually active male participants should use a barrier method or exercise abstinence during chemotherapy administration until surgery.

  • Ability to understand and the willingness to sign a written informed consent document.

Exclusion criteria

  • Patients with inflammatory breast cancer, widespread locally advanced unresectable disease involving the chest wall/nodal basins in which a curative surgical resection cannot be performed, or those in whom de novo metastatic disease is suspected or confirmed
  • May not be receiving any other investigational agents for the treatment of their breast cancer.
  • History of allergic reactions attributed to compounds of similar chemical or biologic composition to the study vaccine components and any of the chemotherapy drugs (docetaxel, carboplatin, trastuzumab, pertuzumab)
  • Unwilling or unable to undergo an apheresis for production of their vaccine
  • Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.
  • Women who are pregnant or breastfeeding
  • Known congenital or acquired immune deficiency (including those patients who require systemic immunosuppressant drugs for autoimmune disease or organ transplant).
  • Pre-existing peripheral neuropathy that would limit treatment with taxanes and platinum agents

Trial design

Primary purpose

Treatment

Allocation

Non-Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

31 participants in 3 patient groups

Lead In Phase - Arm A
Active Comparator group
Description:
Arm A: One Dendritic Cell Vaccine (DC1) per week x 3 weeks.
Treatment:
Procedure: Curative Surgery
Biological: Dendritic Cell Vaccine (DC1)
Drug: Neoadjuvant Chemotherapy
Lead In Phase - Arm B
Active Comparator group
Description:
Arm B: Two DC1 vaccinations per week (given 3 days apart i.e., Mon and Thurs or Tues and Friday) x 3 weeks.
Treatment:
Procedure: Curative Surgery
Biological: Dendritic Cell Vaccine (DC1)
Drug: Neoadjuvant Chemotherapy
Expansion Phase
Experimental group
Description:
DC1 vaccinations according to optimal vaccination schedule. Participants will receive a booster intranodal study vaccine at week 25 prior to receiving surgery. Participants will then undergo definitive curative surgery following completion of the neoadjuvant therapy, additional adjuvant locoregional/systemic therapy (as deemed appropriate by their treating physicians).
Treatment:
Procedure: Curative Surgery
Biological: Dendritic Cell Vaccine (DC1)
Drug: Neoadjuvant Chemotherapy

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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