Clinical trial · Interventional
Study of Proxinium for Treating Patients With Squamous Cell Head and Neck Cancer
A Phase II, Open-Label Study to Evaluate the Safety, Tolerability, and Pharmacokinetic Profile of Proxinium in Patients With Advanced SCCHN Who Have Received at Least One Anti-Cancer Treatment Regimen for Advanced Disease
NCT00272181CI-TRIAL-00020294terminatedPhase 2ClinicalTrials.gov clinicaltrialsProvenance
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Why stopped (as posted): Slow accrual in North America
Summary
Brief summary (as posted)
The purpose of this study is to determine the safety, effectiveness, and recommended dose of Proxinium in North American patients with Squamous Cell Head and Neck Cancer
Conditions
Conditions (6)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Carcinoma, Squamous Cell | Squamous Cell Carcinoma | ONTOLOGY_EXACT | 0.98 |
| Head and Neck Cancer | Malignant Head and Neck Neoplasm | ALIAS | 0.90 |
| Head and Neck Neoplasms | Head and Neck Neoplasm | ONTOLOGY_EXACT | 0.98 |
| Mouth Neoplasms | Oral Cavity Neoplasm | ALIAS | 0.90 |
| Neoplasms, Squamous Cell | Squamous Cell Neoplasm | ONTOLOGY_EXACT | 0.98 |
| Squamous Cell Carcinoma of the Head and Neck | Head and Neck Squamous Cell Carcinoma | ALIAS | 0.90 |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Proxinium | Drug | — | UNRESOLVED |
Design
Arms and outcomes
Arms (1)
- type
- EXPERIMENTAL
- label
- Dose Determination
- description
- The recommended dose (RD) for Proxinium is to be determined based on the rate of Dose Limiting Toxicities (DLT) within each dose cohort. The RD is to be established as the highest dose at which one or fewer patients out of six within a dose cohort experienced a DLT. The initial dose level is 500 μg of Proxinium in PBS (the amount of PBS used will be based on the estimated volume of the target tumour). Doses are to be escalated to a maximum of 700 μg or de-escalated to a minimum of 260 μg according to the prescribed algorithm outlined in the study protocol.
- interventionNames
- Drug: Proxinium
Primary outcomes (1)
- measure
- To determine the safety, tolerability and recommended dose (RD) of Proxinium
- timeFrame
- Weekly dosing
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: Disease Characteristics: * Histologically confirmed recurrent squamous cell carcinoma of the head and neck. * Immunohistochemically confirmed epithelial cell adhesion molecule (EpCAM)-positive SCCHN. * Must have at least 1 accessible target tumor that is amenable to adequate direct injection. * The patient must have at least 1 accessible target tumor without direct carotid artery involvement. Prior/Concurrent Therapy: * The patient must have received therapy for their primary disease * The patient must have been diagnosed with persistent or recurrent disease or a second primary tumour. * The patient's disease must be refractory. * There must be at least 2 weeks between the last dose of chemotherapy or radiotherapy and receiving study drug or 4 weeks between the last dose of an experimental drug and receiving study drug. Patient Characteristics: * Eastern Cooperative Oncology Group (ECOG) performance status of 0, 1, or 2. * Life expectancy of at least 12 weeks. * Adequate hepatic function ALT and AST and total bilirubin levels ≤1.5 times ULN. * Adequate renal function (serum creatinine \<2.0 mg/dL). * Hematologic values consisting of granulocytes ≥1500/μL, platelets ≥100 000/μL, and hemoglobin \>8 g/dL. * Prothrombin time and partial thromboplastin time within normal limits Other: * The patient must provide written informed consent. * Fertile patients must use effective contraception Exclusion Criteria: * Brain tumor or brain metastases. * Nasopharyngeal SCCHN. * Human immunodeficiency virus, hepatitis C virus, or hepatitis B surface antigen. * Uncontrolled bleeding from any target tumor(s) that are being considered for treatment or a history of tumor hemorrhage that has required medical intervention (other than direct compression). * The patient is a candidate for surgical tumor resection of their target tumor(s). * Pregnant or lactating. * Clinically significant renal or hepatic disease. * Requires regular use of aspirin, full-dose warfarin, or heparin.
References
Publications (1)
- DERIVEDHuang M, Park J, Seo J, Ko S, Yang YH, Lee Y, Kim HJ, Lee BS, Lee YS, Ko BJ, Jung ST, Park D, Yoo TH, Kim CH. An epidermal growth factor receptor-targeting immunotoxin based on IgG shows potent antitumor activity against head and neck cancer. FASEB J. 2024 Jul 15;38(13):e23759. doi: 10.1096/fj.202301968R. PMID 38949635