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Pembrolizumab

Phase 4FDA approved

Breast Cancer | Monoclonal antibody | Oncology |Ernexa Therapeutics Inc.|Last Updated: Apr 24, 2026

Development status

FDA approval on record Sep 4, 2014 as Keytruda
Approval holderMerck Sharp Dohme
ApplicationBLA125514
Highest phase Phase 4 run by Merck Sharp & Dohme LLC (NCT03715205)
Phase scored for ERNAPhase 2
Registered trials 358+ across 170 sponsors since Feb 2011

Label indication KEYTRUDA is a programmed death receptor-1 (PD-1)-blocking antibody indicated: Melanoma for the treatment of patients with unresectable or metastatic melanoma. ( 1.1 ) for the adjuvant treatment of adult and pediatric (12 years and older) patients with Stage IIB, IIC, or III melanoma following complete resection. FDA label

Success Probability

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Market & Valuation

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Trial Design

RandomizedCONTROLLEDBiomarker
Total Trials1
Total Enrollment12

FDA Designations

No designations recorded

Clinical trial landscape

Pembrolizumab · 1 trial · 2 indications

Phase 2 1
NCT04373031Pembrolizumab, IRX-2, and Chemotherapy in Triple Negative Breast CancerBreast Cancer
ACTIVE NOT_RECRUITING12 Analytics
PHASE2ACTIVE NOT_RECRUITING
Pembrolizumab, IRX-2, and Chemotherapy in Triple Negative Breast Cancer
Breast CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Pathological Complete Response (pCR) Rate (ypT0/Tis ypN0)
Following definitive surgery, approximately 9 months.

Number of patients who showed pCR post surgery. pCR rate (ypT0/Tis ypN0) is defined as the proportion of subjects without residual invasive cancer on hematoxylin and eosin evaluation of the complete resected breast specimen and all sampled regional lymph nodes following completion of neoadjuvant systemic therapy per the current AJCC staging criteria assessed by the local pathologist at the time of definitive surgery.

Secondary Endpoints

Safety and Tolerability Profile as Assessed by CTCAE v5.0
Cycle 1, Day 1 through safety follow-up visit, approximately 9 months.
Percent Change in Tumor Infiltrating Lymphocytes (TIL) Quantity Changes
Following definitive surgery, approximately 9 months.
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
ControlEXPERIMENTALControl Arm: (Pembro + ACT): Pembrolizumab induction (single-dose 200mg IV), followed by pembrolizumab Q3W + paclitaxel (T) weekly x 4 cycles, followed by pembrolizumab + doxorubicin + cyclophosphamide (AC) Q3W x 4 cycles as neoadjuvant therapy prior to surgery.
Arm AEXPERIMENTAL• Arm A: (Pembro + IRX-2 + ACT): Pembrolizumab (single-dose 200mg IV) + cyclophosphamide (single-dose 300 mg/m2 IV) + IRX-2 induction (1mL SQ x 2 daily, x 10 days), followed by pembrolizumab Q3W + paclitaxel (T) weekly x 4 cycles, followed by IRX-2 re-induction (1mL SQ x 2 daily, x 10 days), followed by pembrolizumab + doxorubicin + cyclophosphamide (AC) Q3W x 4 cycles as neoadjuvant therapy prior to surgery.

Interventions

NameTypeDescription
PembrolizumabDRUGPembrolizumab is a humanized anti-PD-1 mAb of the IgG4/kappa isotype with a stabilizing S228P sequence alteration in the Fc region.
IRX 2DRUGIRX-2, is a cell-derived biologic with multiple active cytokine components that acts on multiple cell types of the immune system including T cells, dendritic cells and natural killer cells.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: 1. Be willing and able to provide written informed consent for the trial. The subject may also provide consent for Future Biomedical Research. However, the subject may participate in the main trial without participating in Future Biomedical Research. 2. Be a male or female subje...

Countries:United States
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