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Pembrolizumab

Phase 1

Head and Neck Cancer | Small molecule | Oncology |Lantheus Holdings, Inc.|Last Updated: Mar 30, 2026

Target and mechanism

Molecular targetPDCD1
Target classInhibitor
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLEDBiomarker
Total Trials1
Total Enrollment6

FDA Designations

No designations recorded

Clinical trial landscape

Pembrolizumab · 1 trial · 4 indications

Phase 1 1
NCT07501650Pembrolizumab Plus Ultrasound-Induced Microbubble Cavitation in Head and Neck CancerHead and Neck Cancer
RECRUITING6 Analytics
PHASE1RECRUITING
Pembrolizumab Plus Ultrasound-Induced Microbubble Cavitation in Head and Neck Cancer
Head and Neck CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants who complete all planned treatment cycles
Up to 9 weeks

The number of participants who completed trial procedures among at least 80 percent of patients, among patients with recurrent or metastatic head and neck squamous cell carcinoma.

Secondary Endpoints

Number of Treatment-Related Adverse Events (TRAEs)
Up to 6 months post-treatment
Objective Response Rate using RECIST v1.1
Up to 3 months after last treatment
Overall Survival
90 days after last dose
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Arm 1: Pembro + Ultrasound-Induced Microbubble CavitationEXPERIMENTALTreatment will be administered on an outpatient basis. 200 mg Pembrolizumab + 3 mL Definity infusions will be administered by nurses at Thomas Jefferson University every 3 weeks for up to 3 cycles. The first cycle will take 60 minutes, while the subsequent infusions should take half an hour to complete.

Interventions

NameTypeDescription
PembrolizumabDRUGPembrolizumab will be administered intravenously at a dose of 200 mg every 3 weeks for up to 3 cycles
DefinityDRUGDefinity will be administered intravenously during each treatment cycle to facilitate ultrasound-induced microbubble cavitation.
Ultrasound-Induced Microbubble CavitationDEVICETherapeutic Ultrasound will be applied to the tumor site during and following the Definity infusion to induce microbubble cavitation using modified ultrasound parameters.
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Eligibility Criteria

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

Inclusion Criteria: * Individuals must meet all of the following inclusion criteria in order to be eligible to participate in the study: 1. Pathologically confirmed, HPV-negative, R/M HNSCC per American Joint Committee on Cancer (AJCC) 8th Edition Staging Criteria, with CPS score \> 1 2. The t...

Countries:United States
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Frequently asked questions about Pembrolizumab

What is Pembrolizumab used for in Head and Neck Cancer?

Pembrolizumab is being studied for use in Head and Neck Cancer, including head and neck small cell carcinoma, metastatic head and neck cancer, and recurrent head and neck cancer. It is currently in Phase 1 clinical development as an investigational therapy for these conditions.

What does Pembrolizumab target?

Pembrolizumab is a monoclonal antibody, indicated by its -mab suffix, that targets the PD-1 receptor. By binding to PD-1, it is designed to modulate the immune system's response against cancer cells, though specific efficacy data is not yet available from ongoing trials.

Who makes Pembrolizumab?

Pembrolizumab is being developed by Lantheus Holdings, Inc., a company traded on the stock exchange under the ticker symbol LNTH. The company is conducting clinical trials to evaluate the drug's safety and effectiveness in head and neck cancer.

What phase is Pembrolizumab in?

Pembrolizumab is in Phase 1 clinical development. It is an investigational drug, meaning it has not yet been approved by regulatory authorities. The ongoing Phase 1 trial is currently recruiting participants to assess the drug's safety and preliminary efficacy.

What clinical trials is Pembrolizumab in?

Pembrolizumab is being evaluated in a single Phase 1 clinical trial with the identifier NCT07501650. The trial, titled 'Pembrolizumab Plus Ultrasound-Induced Microbubble Cavitation in Head and Neck Cancer,' is recruiting 6 participants in the United States and is not randomized or blinded.