Approval Probability
TA Base Rate
Adjusted LOA
ML Risk
Also known as Tavokinogene Telseplasmid (tavo)
Tavokinogene Telseplasmid · 2 trials · 2 indications
ORR is defined as the percentage of participants with evaluable lesions that achieved a complete response (CR) or partial response (PR) as assessed by the investigator using Modified "Skin" Response Evaluation Criteria In Solid Tumors (RECIST). CR: complete disappearance of all lesions (whether measurable or not) and the absence of new lesions for at least 4 weeks duration, confirmed by additional scan and visit 4 to 6 weeks after first documentation of CR. PR: ≥30% decrease in longest dimension (LD) from baseline lesion, and no new lesions.
The MAGPIX assay was used to assess differential expression of hIL-12 in patient tumor tissue before and after treatment with intratumoral (IT) tavo injections and in vivo electroporation (EP). Expression of hIL-12 was used to identify patients who met the primary endpoint of a 2-fold or higher increase in expression of hIL-12 in tumors after treatment. Fold change was taken as a comparison of hIL-12 expression at Week 3:pre-treatment, Week 6:pre-treatment, Week 8:pre-treatment, or Week 13:pre-treatment over baseline (pre- treatment). The fold change was calculated as log2 (time point/baseline).
| Arm | Type | Description |
|---|---|---|
| Main Study: tavo-EP | EXPERIMENTAL | Patients received one cycle (3 daily treatments on Days 1, 5, and 8) of intra-tumoral injection(s) of tavo at a fixed dose of 0.5 mg/mL (up to 4 tumor sites) followed immediately by in vivo electroporation. Treatment could be repeated at 3-month intervals until disease progression or unacceptable toxicity for up to 5 cycles. |
| Addendum: Regimen A tavo-EP | EXPERIMENTAL | Patients received one cycle (3 daily treatments on Days 1, 8, and 15) of intra-tumoral injection(s) of tavo at a fixed dose of 0.5 mg/mL (up to 4 tumor sites) followed immediately by in vivo electroporation. Treatment could be repeated at 6-week intervals until disease progression or unacceptable toxicity for up to 9 cycles. |
| Addendum: Regimen B tavo EP | EXPERIMENTAL | Patients received one cycle (3 daily treatments on Days 1, 5, and 8) of intra-tumoral injection(s) of tavo at a fixed dose of 0.5 mg/mL (up to 4 tumor sites) followed immediately by in vivo electroporation. Treatment could be repeated at 6-week intervals until disease progression or unacceptable toxicity for up to 2 cycles. |
| Cohort A: Tavo-EP | EXPERIMENTAL | Patients in Cohort A received one cycle (3 daily treatments on Days 1, 5, and 8) of intra-tumoral injection(s) of tavo at a fixed dose of 0.5 mg/mL (up to 4 tumor sites) followed immediately by in vivo electroporation, after which they proceeded to definitive treatment (surgery and/or radiation therapy) which started between 2 and 4 weeks after the first injection. |
| Cohort B: Tavo-EP | EXPERIMENTAL | Patients in Cohort B received up to 4 cycles (3 daily treatments on Days 1, 5, and 8, per cycle) of intra-tumoral injection(s) of tavo at a fixed dose of 0.5 mg/mL (up to 4 tumor sites) followed immediately by in vivo electroporation, with 12 planned weeks between each cycle, lasting up to 12 months. |
| Name | Type | Description |
|---|---|---|
| Tavokinogene Telseplasmid (tavo) | BIOLOGICAL | Patients received intratumoral injection(s) of tavo. |
| OncoSec Medical System (OMS) | DEVICE | Electroporation via OMS was performed immediately following intratumoral injection of tavo. A sterile applicator containing 6 stainless steel electrodes arranged in a circle were placed around the tumor. The applicator was connected to the OMS power supply and six pulses were administered to each tumor lesion at the approximate point of tavo injection. |
Inclusion Criteria: * Patients with advanced cutaneous or subcutaneous in-transit or metastatic melanoma (main and addendum) * Age ≥ 18 years of age (main and addendum). * Eastern Cooperative Oncology Group (ECOG) performance status 0-2 (main and addendum). * Patients may have had prior chemotherap...
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