Non-Randomized Phase 2 Trial of Three Schedules of CUE-101 Administered Before Surgery or Definitive Chemoradiation Therapy in HLA-A*0201 Positive Patients With Locally Advanced, HPV16-Positive Oropharyngeal Squamous-Cell Carcinoma
Summary
This is a phase 2 trial to assess the safety and tolerability of three schedules of CUE-101 administered in the neoadjuvant phase before standard of care (SOC) therapy to treatment naïve, HLA-A\*0201 positive patients with newly diagnosed, locally advanced HPV16+ oropharyngeal squamous-cell carcinoma (OPSCC). This is an exploratory trial of a limited sample size to confirm safety and to assess for pharmacodynamic signals of efficacy in each of three schedules of CUE-101. Safety assessments will be performed at baseline and after CUE-101 administration. To assess for efficacy, peripheral blood and tumor samples will be collected at baseline and after CUE-101 administration. Following CUE-101, patients will proceed with SOC therapy, as prescribed by the treating physician.
Arms & interventions
- DrugCUE-101
CUE Biopharma will supply CUE-101, which will be provided free of charge to the patient.
Outcome measures
Primary
Number of treatment-related adverse events
Time frame: From start of treatment through 12 months after the completion of standard of care treatment (estimated to be 15 months)
Number of adverse events
Time frame: From start of treatment through 12 months after the completion of standard of care treatment (estimated to be 15 months
Treatment-related delays in start of standard of care therapy
-Defined as \>7 days of treatment-related delay from the planned date of surgery or initiation of definitive-chemoradiation therapy.
Time frame: From start of treatment through start of standard of care therapy (estimated to be 2 weeks)
Change in frequency of HPV16 E711-20-specific CD8+ T cells in peripheral blood samples
* Determined by IFN γ ELISpot for detection of HPV16 E711-20-specific T cells * Baseline, prior to each CUE-101 infusion, 24 hours post-end of each CUE-101 infusion, prior to standard of care therapy, at day 28 post CUE-101, 2 month follow-up, 4 month follow-up, 8 month follow-up and 12 month follow-up
Time frame: Through 12 month follow-up
Change in frequency of HPV16 E711-20 tetramer-positive cytotoxic T cell lymphocytes
* Determined by multiparameter flow cytometry * Baseline, prior to each CUE-101 infusion, 24 hours post-end of each CUE-101 infusion, prior to standard of care therapy, at day 28 post CUE-101, 2 month follow-up, 4 month follow-up, 8 month follow-up and 12 month follow-up
Time frame: Through 12 month follow-up
Change in frequency of HPV16 E711-20-specific CD8+ T cells in tumor samples
Time frame: Baseline, day -2 or -1 before start of standard of care therapy
Activation markers of HPV16 E711-20 tetramer-positive cytotoxic T cell lymphocytes
Time frame: Through 12 month follow-up
Proliferative status of HPV16 E711-20 tetramer-positive cytotoxic T cell lymphocytes
Time frame: Through 12 month follow-up
Secondary
Pathological tumor response
Time frame: At the time of surgery or biopsy (Day 1 - approximately 7-14 days after start of CUE-101 treatment)
Objective response rate (ORR)
Time frame: Prior to surgery/definitive chemoradiation treatment (Day 1 - approximately 7-14 after start of CUE-101 treatment)
Change in area under the concentration-time curve (AUC) of serum PK parameters
Time frame: Through 12 month follow-up
Change in Cmax of serum PK parameters
Time frame: Through 12 month follow-up
Change in Terminal elimination half-life(t1/2) of serum PK parameters
Time frame: Through 12 month follow-up
Number of participants who relapse
Time frame: Through 12 month follow-up
Number of participants who die summarized by cause of death
Time frame: Through 12 month follow-up
Progression-free survival (PFS)
Time frame: Through 12 month follow-up
Overall survival (OS)
Time frame: Through 12 month follow-up
Eligibility criteria
Study locations (1)
Washington University School of Medicine
St Louis, Missouri, 63110