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Clinical Trial Summary

This study will perform tumor-infiltrating lymphocyte (TIL)-based adoptive T-cell therapy in combination with checkpoint inhibition on cancer patients across all cancer diagnoses.

Clinical Trial Description

Adoptive cell therapy (ACT) is a personalized form of immunotherapy, where lymphocytes isolated from the patient's own tumor tissue are expanded 1000-fold ex-vivo and then infused back into the patient. The lymphocytes are then able to recognize and attack remaining cancer cells. This approach has shown remarkable clinical results in several trials conducted worldwide for patients with advanced melanoma - some with durable remissions. Promising clinical results were obtained in smaller trials where patients with disparate solid tumors were treated with tumor-infiltrating lymphocytes (TILs). At Center for Cancer Immune Therapy (CCIT) at Herlev Hospital, there are currently clinical trials undergoing in ovarian and renal cancer, and internationally ACT is being tested in an increasing number of cancer diagnoses, some trials are even recruiting patients across cancer types. Studies have shown that a high intratumoral infiltration with TILs in is correlated to the general clinical outcome of the disease in virtually all solid tumors, and thus clinical trials with TIL-based ACT to different cancer diagnoses have been undertaken.

To support the TIL-mediated tumor elimination, in classical ACT protocols patients go through a highly specialized treatment regime before and after TIL infusion. This regime includes lymphodepletion with 7 days non-myeloablative chemotherapy, to provide an immunological window of opportunity for the infused TILs, and concomitant immune stimulation with interleukin-2 (IL-2). Checkpoint inhibition to support the anti-tumor activity of TILs is currently under extensive investigation in several other trials worldwide. Thus, lymphodepletion and IL-2 stimulation are well-established as supportive therapy and already an integrated part of current ACT protocols and while checkpoint inhibition is a new addition at CCIT; internationally other centers have ongoing comparable trials.

Drug-based immunotherapy in the form of checkpoint inhibitors (anti-PD-1 and anti-CTLA-4) has yielded impressive clinical results across tumor histologies. Recent results indicate that the effect of immunotherapy relies not so much on the cancer diagnoses but rather on the genomic and immunologic features of the individual patient's cancer disease. Both ACT and checkpoint inhibition work by tipping the immunological balance in favor of activation and away from suppression or avoidance by the cancer cells. Scientific evidence now show that administering anti-CTLA-4 and PD-1 could provide a benefit in the ACT setting, and several ongoing clinical trials are testing combinations of ACT and checkpoint inhibition. To synergistically maximize the immunological potential, we wish to combine ACT with an anti-CTLA-4 antibody (Ipilimumab) prior to tumor resection and an anti-PD-1 antibody (Nivolumab) in combination with TIL infusion.

Patients will be treated with one dose of Ipilimumab 14 days before undergoing surgery to harvest tumor material for TIL production. Patients is admitted on day -8 in order to undergo lymphodepleting chemotherapy with cyclophosphamide and fludara starting day -7. On day -2 patients will start treatment with Nivolumab every 2 weeks for a total of 4 doses to increase the activity of the infused TIL product.

Available evidence indicates that ACT is a safe and feasible treatment option in an increasing number of solid tumors, and that it should be tested in all cancer patients regardless of their cancer diagnosis. ;

Study Design

Related Conditions & MeSH terms

NCT number NCT03296137
Study type Interventional
Source Herlev Hospital
Contact Inge Marie Svane, MD, Prof
Phone 38683868
Status Recruiting
Phase Phase 1/Phase 2
Start date October 13, 2017
Completion date March 13, 2020

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