Adoptive T cell therapy with tumor infiltrating lymphocytes (TIL) has achieved impressive clinical results with durable complete responses in patients with metastatic melanoma. The TILs are isolated from the patients own tumor tissue followed by in vitro expansion and activation for around 4-6 weeks. Before TIL infusion the patients receive 1 week of preconditioning chemotherapy with cyclophosphamide and fludarabine. After TIL infusion Interleukin-2 are administered to support T cell activation and proliferation in vivo. In this trial the therapy is combined with peginterferon (the pegylated form of interferon alpha 2b). Interferon alpha has immunomodulatory effects and is known to upregulate HLA expression on melanoma cells and are hypothesized to synergize with TIL therapy.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
12
Cyclophosphamide 60 mg/kg are administered i.v on day -7 and -6
Fludarabine 25 mg/m2 are administered i.v on day -5 to -1
The maximum number of expanded TILs are infused over 30-45 min on day 0
Interleukin-2 are administered as a continuous i.v. infusion in a decrescendo regimen (18 MIU/m2 IL-2 over 6 hours, 18 MIU/m2 IL-2 over 12 hours, 18 MIU IL-2 over 24 hours followed by 4.5 MIU/m2 IL-2 over another 24 hours for three days)
Peginterferon alpha-2b, 3 microgram/kg are administered as subcutaneous injection on day -2, day 7 and day 14.
Center for Cancer Immune Therapy, Dept. of Haematology/Oncology
Copenhagen, Herlev, Denmark
Number of Participants With Adverse Events/Serious Adverse Events
Determine the safety of the administration of peginterferon in combination with TIL therapy including lymphodepleting chemotherapy and Interleukin-2 by reporting adverse events according to CTCAE v. 4.0
Time frame: 0-24 weeks
Treatment Related Immune Responses
Number of participants with detectable in vitro immune responses in the TIL infusion product using intracellular flow cytometry.
Time frame: Up to 12 months
Objective Response Rate
Clinical responses will be evaluated by RECIST 1.1 (Response Criteria In Solid Tumors Criteria version 1.1) and assessed by CT scan. Complete response (CR), disapperance of all lesions; Partial response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Objective response (OR) = CR + PR
Time frame: Up to 36 months
Overall Survival
Overall survival (OS), defined as time from treatment initiation to death, described using the Kaplan Meier method
Time frame: Up to 36 months
Progression Free Survival
Progression free survival (PFS), defined as the time from treatment initiation to disease progression, relapse or death due to any cause, which ever comes first, will be described with the Kaplan Meier method.
Time frame: Up to 36 months
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