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About
This phase II trial investigates the effect of NBTXR3, radiation therapy, and pembrolizumab in treating patients with head and neck squamous cancer that has come back (recurrent) or has spread to other places in the body (metastatic). NBTXR3 may cause cell destruction when activated by radiation. Radiation therapy, such as stereotactic body radiation therapy, uses special equipment to position a patient and deliver radiation to tumors with high precision. This method may kill tumor cells with fewer doses over a shorter period and cause less damage to normal tissue. And hypofractionated radiation therapy delivers higher doses of radiation therapy over a shorter period of time and may kill more tumor cells and have fewer side effects. Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving NBTXR3, radiation therapy, and pembrolizumab may kill more tumor cells.
Full description
PRIMARY OBJECTIVE:
I. To evaluate tumor response of hafnium oxide-containing nanoparticles NBTXR3 (NBTXR3) activated by radiation therapy (RT) in combination with pembrolizumab in patients with recurrent/metastatic (R/M) head and neck squamous cell cancer (HNSCC).
SECONDARY OBJECTIVES:
I. To assess unacceptable treatment-related toxicity of NBTXR3 activated by RT in combination with pembrolizumab in patients with R/M HNSCC.
II. To assess the safety profile of NBTXR3 activated RT in combination with pembrolizumab in patients with R/M HNSCC.
III. To evaluate time-to-event outcomes of NBTXR3 activated by RT in combination with pembrolizumab in patients with R/M HNSCC.
EXPLORATORY OBJECTIVES:
I. To associate radiomic measurements with outcomes of treatment with NBTXR3 activated by RT in combination with pembrolizumab.
II. To evaluate biomarkers of response in subjects treated with NBTXR3 activated by RT in combination with pembrolizumab.
OUTLINE:
Patients receive hafnium oxide-containing nanoparticles NBTXR3 via injection intratumorally or intranodally on day 1. Beginning as early as day 3 and within 8 days of NBTXR3 injection, patients undergo stereotactic body radiation therapy (SBRT) every other day (QOD) or hypofractionated RT once daily (QD) over 1-2 weeks at the discretion of the treating radiation oncologist. Starting on the same day as radiation therapy, patients also receive pembrolizumab intravenously (IV) over 30 minutes every 3 weeks for up to 24 months in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed up every 6 weeks for 2 years.
Enrollment
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Volunteers
Inclusion criteria
Patients with biopsy proven R/M HNSCC that is considered incurable by local therapies.
Participant must have at least 2 lesions
Prior systemic therapy (i.e., chemotherapy or targeted therapy) given as part of multimodal treatment for locally advanced disease is allowed.
Prior anti-PD-1/L1 therapy allowed in the PD-1 refractory cohort (cohort 2)
Have results from testing of human papillomavirus (HPV) status for oropharyngeal cancer defined as p16 immunohistochemistry (IHC) testing using CINtec p16 Histology assay, or equivalent, and a 70% cutoff point.
Have provided tissue for PD-L1 biomarker analysis from a core or excisional biopsy, fine needle aspirate (FNA) not adequate.
Amenable to undergo the image guided intratumoral/intranodal injection of NBTXR3 in up to 3 target lesions, as per investigator or treating physician discretion.
The selected target lesion and non-target lesion should be measurable as per Response Evaluation Criteria in Solid Tumors (RECIST) version (v)1.1 on cross sectional imaging and repeated measurements at the same anatomical location should be achievable
Age >= 18 years
Eastern Cooperative Oncology Group (ECOG) performance status 0-2
Hemoglobin >= 9.0 g/dL
Absolute neutrophil count (ANC) >= 1,000/mm^3
Platelet count >= 100,000/mm^3
Leukocytes >= 1500/mm^3
Calculated (Calc.) creatinine clearance > 40 mL/min
Total bilirubin =< 2.0 mg/dL
Aspartate aminotransferase (AST)/alanine aminotransferase (ALT) =< 2.5 x upper limit of normal (ULN) or =< 5 x ULN for patients with liver metastasis
For patients with lung metastases, adequate lung function with expiratory volume in 1 second (FEV1) >= 0.8 L or >= 35% predicted and carbon monoxide diffusing capability (DLCO) >= 40% with or without bronchodilator within 28 days prior to NBTXR3 injection
Patients who meet the criterion above without oxygen (O2), but need acute (started within 7 +/- 3 days) supplemental oxygen due to tumor-caused obstruction/hypoxia are eligible, provided the amount of the O2 needed has been stable
Negative urine or serum pregnancy test =< 7 days prior to NBTXR3 injection in all women of child-bearing potential (WOCBP). WOCBP must agree to follow instructions for method(s) of contraception for the duration the entire study period and 6 months after the last dose of anti-PD-1 treatment. Local laws and regulations may require use of alternative and/or additional contraception methods. WOCBP who are continuously not heterosexually active are exempt from contraceptive requirements but should still undergo pregnancy testing
Signed informed consent form (ICF) indicating that participant understands the purpose of, and procedures required for, the study and is willing to participate in the study
Exclusion criteria
Diagnosis other than HNSCC R/M with disease that is suitable for local therapy administered with curative intent
Less than 6-month time interval from prior radiation to the HN given as part of multimodal treatment for locally advanced disease
Prior radiation to the lung or liver target lesions
History of severe immune-related adverse events observed with previous immunotherapy (anti-PD-1/L1) or known sensitivity (grade >= 3) to any excipients
Has received any approved or investigational anti-neoplastic agent or immunotherapy within 4 weeks prior to NBTXR3 injection.
Has not recovered from adverse events (AEs) due to previous anti-neoplastic or immune-oncology therapy and/or interventions (including radiation) to =< grade 1.
Symptomatic central nervous system metastases and/or carcinomatous meningitis
Active autoimmune disease that has required systemic treatment in the past 2 years (i.e., with use of disease-modifying agents, corticosteroids, or immunosuppressive drugs).
At screening, past medical history of:
Drug related pneumonitis
Idiopathic pulmonary fibrosis (IPF)
Unresolved organizing pneumonia (i.e., bronchiolitis obliterans, cryptogenic organizing pneumonia)
Unresolved radiation related
Unresolved gastrointestinal (GI) related events
Diverticulitis
Any live-virus vaccine therapy used for prevention of infectious diseases administered within 4 weeks prior to NBTXR3 injection
Prior allogenic stem cell transplantation or organ allograft
Known contraindication to iodine-based or gadolinium-based IV contrast
A history of prior malignancy other than the HNSCC.
Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, renal failure, cardiac arrhythmia, or psychiatric illness that would limit compliance with treatment
Known active, uncontrolled (high viral load) human immunodeficiency virus (HIV) or hepatitis B or hepatitis C infection
Female patients who are pregnant or breastfeeding
Women of child-bearing potential and their male partners who are unwilling or unable to use an acceptable method of birth control to avoid pregnancy for the entire study period and up to 6 months, for females, and 220 days for males after the last dose of anti-PD-1.
Any condition for which, in the opinion of the investigator, participation would not be in the best interest of the participant (e.g., compromise the well-being) or that could prevent, limit, or confound the protocol-specified assessments
Primary purpose
Allocation
Interventional model
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14 participants in 1 patient group
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Data sourced from clinicaltrials.gov
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