The study is designed to see if a course of injections containing the NY-ESO-1 protein (a tumor antigen, marker expressed by tumors); in combination with an immune stimulant (adjuvant) Montanide, with or without resiquimod (another adjuvant) is well tolerated and safe in patients with surgically resected Stage IIB, IIC, Stage III or Stage IV (AJCC criteria) melanoma, a tumor that expresses NY-ESO-1. In addition, this study is designed to see if the patient's body's defense (immune) system can be boosted (strengthened) by this vaccine and if the addition of resiquimod to the vaccine makes this more likely.
There is no published data on the application of topical resiquimod in combination with an antigen in Montanide, therefore, this study includes a 2-part design where Part I represents a dose-escalation part with topical resiquimod in an open-label fashion. Part II represents the randomized part. In Part I, 2 cohorts are planned: If no dose-limiting toxicity (DLT) occurs by day 8 of the last vaccination cycle in the last patient enrolled the first cohort, 3 additional patients (cohort 2) will be enrolled. If no DLT occurs by day 8 of the last vaccination cycle in the last patient enrolled the second cohort in Part I, the trial will proceed to Part II where patients will be randomized.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
26
Part I: a cohort of 3 patients to receive a subcutaneous vaccination of 100µg NY-ESO-1 protein emulsified in 1.25mL Montanide ISA®-51 VG (day 1) followed by topical resiquimod 1000 mg of the 0.2% gel on days 1, and 3. If no DLT observed, we will proceed to cohort 2 with Resiquimod dosing on days 1,3 and 5. If DLT is found in the second cohort, the trial will proceed to Part II; with the limited dosing for days 1 and 3 only, as used in the first cohort. If no DLT is found in second cohort, the trial will proceed to Part II with Resiquimod dosing for days1, 3 and 5.
Part II: Eligible patients will be randomized to receive a subcutaneous vaccination of 100µg NY-ESO-1 protein emulsified in 1.25mL Montanide ISA®-51 VG (day 1) followed by topical placebo gel (Arm A) or topical resiquimod gel (Arm B) on days 1, 3 and 5; or resiquimod dosing regimen established in Part I. The cycles will be repeated every 3 weeks for a total of 4 cycles (on Study week 1, 4, 7 and 10). All procedures may occur within + 3 days of the planned date.
Icahn School of Medicine at Mount Sinai
New York, New York, United States
The primary objectives of the study are to define the safety and immunogenicity of vaccination with NY-ESO-1 protein emulsified in Montanide® ISA-51 VG when given with or without the topical TLR 7/8 agonist resiquimod.
Time frame: Blood samples are obtained at baseline, 1 week after each vaccination, and at follow-up 1visit.
To document tumor response by RECIST criteria if applicable. Skin section analysis of resiquimod/placebo treated site for immune cell infiltration and gene expression analysis. Investigation of polymorphisms for TLR7/8 through germline SNP analysis
Time frame: Skin biopsies will be obtained after the last vaccination cycle. Clinical hematology and biochemistry measurements will be taken at baseline, one week after the second vaccination and two to four weeks after the fourth vaccination
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