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Anti-HER2/HER3 Dendritic Cell Vaccine

Phase 2

Anatomic Stage IV Breast Cancer AJCC v8 | Monoclonal antibody | Oncology |United Therapeutics Corporation|Last Updated: May 11, 2026

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment23

FDA Designations

No designations recorded

Clinical trial landscape

Anti-HER2/HER3 Dendritic Cell Vaccine · 1 trial · 4 indications

Phase 2 1
NCT04348747Dendritic Cell Vaccines Against Her2/Her3 and Pembrolizumab for the Treatment of Brain Metastasis From Triple Negative Breast Cancer or HER2+ Breast CancerAnatomic Stage IV Breast Cancer AJCC v8
RECRUITING23 Analytics
PHASE2RECRUITING
Dendritic Cell Vaccines Against Her2/Her3 and Pembrolizumab for the Treatment of Brain Metastasis From Triple Negative Breast Cancer or HER2+ Breast Cancer
Anatomic Stage IV Breast Cancer AJCC v8Unlock trial analytics

Study Endpoints

Primary Endpoints

Central nervous system (CNS) objective response rate (ORR)
Within 6 months of treatment start date

Assessed per Response Assessment in Neuro-Oncology Brain Metastases (RANO-BM) working group. Will be summarized using frequencies and relative frequencies. A 90% confidence interval about the true ORR will be obtained using Jeffrey's prior method.

Secondary Endpoints

Volumetric quantification of brain metastases
Up to 2 years
Non-CNS (i.e. of systemic disease) response rate
Up to 2 years
Median CNS progression free survival (PFS)
Up to 2 years
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Treatment (anti-HER2/3 dendritic cell vaccine)EXPERIMENTALTREATMENT PHASE: Patients receive anti-HER2/HER3 dendritic cell vaccine ID on days 1, 22, and 43. Patients will also receive pembrolizumab IV on the same days. MAINTENANCE PHASE: Patients receive pembrolizumab IV over 30 minutes on day 1. Cycles repeat every 21 days for 2 years in the absence of disease progression or unacceptable toxicity. Patients may also receive a booster dose of anti-HER2/3 dendritic cell vaccine ID, every 3-6 months in the opinion of principal investigator.

Interventions

NameTypeDescription
Anti-HER2/HER3 Dendritic Cell VaccineBIOLOGICALGiven ID
PembrolizumabBIOLOGICALGiven IV
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Eligibility Criteria

Age Range18 Years to N/A
SexFEMALE
Healthy VolunteersNo
Study Sites3

Inclusion Criteria: * female participant is eligible to participate if she is not pregnant,not breastfeeding, and at least one of the following conditions applies: * Not a woman of childbearing potential (WOCBP) * A WOCBP who agrees to follow contraceptive guidance * WOCBP must agree to use ac...

Countries:United States
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Frequently asked questions about Anti-HER2/HER3 Dendritic Cell Vaccine

What is Anti-HER2/HER3 Dendritic Cell Vaccine used for?

Anti-HER2/HER3 Dendritic Cell Vaccine is an investigational cancer vaccine being studied for the treatment of Anatomic Stage IV Breast Cancer AJCC v8, including metastatic triple-negative breast carcinoma and HER2-positive breast cancer with brain metastasis. It is currently in Phase 2 clinical development and has not been approved by the FDA.

What does Anti-HER2/HER3 Dendritic Cell Vaccine target?

Anti-HER2/HER3 Dendritic Cell Vaccine targets the HER2 and HER3 receptors, which are proteins involved in the growth of certain breast cancers. The vaccine is designed to stimulate the immune system to recognize and attack cancer cells expressing these targets.

Who makes Anti-HER2/HER3 Dendritic Cell Vaccine?

Anti-HER2/HER3 Dendritic Cell Vaccine is being developed by United Therapeutics Corporation, a biotechnology company traded on the NASDAQ under the ticker symbol UTHR. The company is conducting a Phase 2 clinical trial to evaluate the vaccine in patients with advanced breast cancer.

What phase is Anti-HER2/HER3 Dendritic Cell Vaccine in?

Anti-HER2/HER3 Dendritic Cell Vaccine is in Phase 2 clinical development. It is an investigational agent, meaning it has not been approved by the FDA and is still being studied for safety and efficacy in clinical trials.

What clinical trials is Anti-HER2/HER3 Dendritic Cell Vaccine in?

Anti-HER2/HER3 Dendritic Cell Vaccine is being evaluated in a single Phase 2 clinical trial with the identifier NCT04348747. This trial is recruiting female patients aged 18 years and older with brain metastasis from triple-negative or HER2-positive breast cancer, and it is being conducted in the United States.