Patient case: 54-year-old male with melanoma; genetic feature: BRAF (V600K)

Clinical trial: Tumor-Infiltrating Lymphocytes After Combination Chemotherapy in Treating Patients With Metastatic Melanoma

Summary: This phase II trial studies how well tumor-infiltrating lymphocytes (TIL) after combination chemotherapy works in treating patients with melanoma that has spread to other places in the body. Biological therapies, such as TIL, may stimulate the immune system in different ways and stop tumor cells from growing. Drugs used in chemotherapy, such as cyclophosphamide and fludarabine phosphate, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving TIL after combination chemotherapy may kill more tumor cells.

Detailed description: PRIMARY OBJECTIVES:
  I. Examine the anti-tumor efficacy of cellular adoptive immunotherapy in metastatic melanoma patients using autologous tumor-infiltrating lymphocytes with a lymphodepleting conditioning regimen of cyclophosphamide and fludarabine (fludarabine phosphate), and followed by adjuvant high-dose interleukin (IL)-2 (aldesleukin).
  SECONDARY OBJECTIVES:
  I. Determine the in vivo persistence of transferred tumor-infiltrating lymphocytes.
  II. Examine the safety of cellular adoptive immunotherapy in melanoma patients using autologous tumor-infiltrating lymphocytes, preceded by a lymphodepleting conditioning regimen of cyclophosphamide and fludarabine, and followed by adjuvant high-dose IL-2.
  III. Evaluate for molecular tumor markers and immunohistochemical features that correlate with in vivo persistence and anti-tumor efficacy.
  OUTLINE:
  Patients receive cyclophosphamide intravenously (IV) on days -7 to -6 and fludarabine phosphate IV on days -5 to -1. Patients undergo TIL infusion over 30-60 minutes on day 0 and receive aldesleukin IV every 8 hours on days 1-5 for up to a maximum of 14 doses.
  After completion of study treatment, patients are followed up at 6, 12, and 24 weeks.

Eligibility: Inclusion Criteria:
  Step I Inclusion Criteria:
  -  Stage IV melanoma or stage III melanoma that is unlikely to be cured by surgery
  -  Able to tolerate high-dose cyclophosphamide, fludarabine and high-dose IL-2
  -  Eastern Cooperative Oncology Group (ECOG) performance status of 0-1
  -  Patients must have a magnetic resonance imaging (MRI), computed tomography (CT), or positron emission tomography (PET) of the brain within 2 months before consenting if known history of brain metastasis or if clinically indicated; if new lesions are present, principal investigator (PI) or designee should make final determination regarding enrollment
  -  Patients must have a site of metastatic disease that can be safely resected or biopsied for tissue sufficient for TIL harvest
  Step II Inclusion Criteria:
  -  Patients must have measurable metastatic melanoma
  -  Able to tolerate high-dose cyclophosphamide, fludarabine, and high-dose IL-2
  -  ECOG performance status of 0-1
  -  Patients must have brain imaging by MRI, CT or PET within 30 days prior to lymphodepletion; patients may have asymptomatic brain lesions that are =< 1 cm each, lesions that are > 1 cm that have been irradiated and in the opinion of the investigator no longer represents active disease will also be allowed
  -  A functional cardiac test (e.g., stress treadmill, stress thallium, multigated acquisition scan (MUGA), dobutamine echocardiogram) to rule out cardiac ischemia within 4 months prior to lymphodepletion is required for all patients
  -  Pulmonary function tests (PFTs) are required of all patients within 4 months prior to lymphodepletion; forced expiratory volume (FEV)1 and forced vital capacity (FVC) must be >= 65% predicted and diffusion lung capacity for carbon monoxide (DLCO) must be >= 50% predicted
  -  Patients must have their tumor sent for v-Raf murine sarcoma viral oncogene homolog B1(BRAF) mutational analysis
  -  Patients must have adequate TIL (at least 40 x 10^6 cells at the pre-expansion stage)
  Exclusion Criteria:
  Step I Exclusion Criteria:
  -  Men or women of reproductive ability who are unwilling to use effective contraception or abstinence for 4 months after treatment
  -  Calculated creatinine clearance (estimated glomerular filtration rate [eGFR]) < 60 ml/min; EGFR values can be determined by either Modification of Diet in Renal Disease (MDRD) or Cockcroft-Gault equation based on the investigator's discretion
  -  Aspartate aminotransferase (AST)/alanine aminotransferase (ALT) > 3 x upper limit of normal
  -  Total bilirubin > 2.0 mg/dl, except in patients with Gilbert's syndrome whose total bilirubin must not exceed 3.0 mg/dl) deemed by investigator to be irreversible
  -  FEV1 < 65% predicted, FVC < 65% of predicted, DLCO (corrected for hemoglobin [Hgb]) < 50% predicted); pulmonary function tests (PFTs) within 4 months prior to consent for Step I will be required for patients with underlying risk factors such as smoking history > 10 pack years, or a history of pre-existing symptomatic lung disease (not including melanoma metastases to the lung)
  -  Pre-existing known cardiovascular abnormalities as defined by any one of the following:
  -  Congestive heart failure
  -  Clinically significant hypotension
  -  Cardiac ischemia, or symptoms of coronary artery disease
  -  Presence of cardiac arrhythmias on electrocardiogram (EKG) requiring drug therapy
  -  Ejection fraction < 45% (echocardiogram or MUGA), although any patient with an ejection fraction between 45-49% must receive clearance by a cardiologist to be eligible for Step II of the trial
  -  Clinically significant autoimmune disorders or conditions of immunosuppression; patients with acquired immunodeficiency syndrome (AIDS) or human immunodeficiency virus (HIV)-1 associated complex or known to be HIV antibody seropositive or known to be recently polymerase chain reaction (PCR)+ for hepatitis B or C are not eligible for this study; the severely depressed or altered immune system found in these patients and the possibility of premature death would compromise study objectives
  -  Patients with active systemic infection requiring intravenous antibiotics
  -  Clinically significant psychiatric disease which, in the opinion of the PI or sub-investigator (I), would render immunotherapy and its potential sequelae unsafe or compliance with procedural requirements unlikely
  Step II Exclusion Criteria:
  -  Pregnant women, nursing mothers, men or women of reproductive ability who are unwilling to use effective contraception or abstinence; women of childbearing potential must have a negative pregnancy test within 14 days prior to entry; patients of both genders must practice birth control during treatment and for four months after treatment
  -  Calculated creatinine clearance (eGFR) < 60 ml/min; EGFR values can be determined by either MDRD or Cockcroft-Gault equation based on the investigator's discretion
  -  AST/ALT > 3 x upper limit of normal
  -  Total bilirubin > 2.0 mg/dl, except in patients with Gilbert's syndrome whose total bilirubin must not exceed 3.0 mg/dl)
  -  Clinically significant pulmonary dysfunction (FEV1< 65% predicted or FVC < 65% of predicted, DLCO (corrected for Hgb) < 50% predicted)
  -  Pre-existing known cardiovascular abnormalities as defined by any one of the following:
  -  Congestive heart failure
  -  Clinically significant hypotension
  -  Cardiac ischemia, or symptoms of coronary artery disease
  -  Presence of cardiac arrhythmias on EKG requiring drug therapy
  -  Ejection fraction < 45%, although any patient with an ejection fraction between 45-49% must receive clearance by a cardiologist to be eligible for Step II of this trial
  -  Absolute neutrophil count less than 1000/mm^3
  -  Platelet count less than 100,000/mm^3
  -  Hemoglobin less than 10.0 g/dl
  -  Untreated central nervous system metastases that are either symptomatic or greater than 1 cm at time of therapy; lesions that are > 1cm that have been irradiated and in the opinion of the PI or sub-I no longer represent active disease may be allowed
  -  Patients with systemic infections requiring active therapy within 72 hours of lymphodepletion
  -  Systemic cancer therapy (standard or experimental), including cytotoxic chemotherapy or IL-2, received less than 4 weeks or checkpoint blocking agents (e.g., cytotoxic T-lymphocyte protein [CTLA]-4 or programmed cell death protein [PD]1/PD-ligand [L]1 inhibitors) received less than 6 weeks prior to lymphodepletion, with the exception of targeted therapies
  -  Commercially available, molecularly targeted therapies (e.g., dabrafenib, trametinib, vemurafenib, imatinib) taken within 7 days prior to lymphodepletion
  -  Clinically significant autoimmune disorders or conditions of immunosuppression; patients with AIDS or HIV-1 associated complex or known to HIV antibody seropositive or known to be recently PCR+ for hepatitis B or C virus are not eligible for this study; virology testing will be done within 6 months of T cell infusion; the severely depressed or altered immune system found in these patients and the possibility of premature death would compromise study objectives
  -  Prior treatment with systemic steroids within 4 weeks prior to lymphodepletion (except for physiologic replacement doses for adrenal insufficiency, premedication for contrast allergies for scans, and for drug fever related to targeted therapy)
  -  Any other significant medical or psychological conditions that would make the patient unsuitable candidate for cell therapy at the discretion of the PI

Relevance to patient case: not relevant