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Vaccination With Dendritic Cells Pulsed With Autologous Tumor Homogenate in Combination With HD-IL2 and Immunomodulating Radiotherapy in Metastatic RCC

Vaccination With Dendritic Cells Pulsed With Autologous Tumor Homogenate in Combination With HD-IL2 and Immunomodulating Radiotherapy in Metastatic RCC: a Phase II Trial (RENALVax-2)

Status
Withdrawn
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03226236
Acronym
RENALVax-2
Enrollment
0
Registered
2017-07-21
Start date
2016-03-31
Completion date
2019-03-31
Last updated
2018-11-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Carcinoma, Renal Cell, Secondary, Vaccination

Keywords

Carcinoma, Renal Cell, vaccination, dendritic cells, autologous tumor homogenate, High Dose -IL2, immunomodulating radiotherapy, secondary

Brief summary

Single center, open-label Proof of Principle phase II trial to assess objective response (ORR). Three daily doses boost radiotherapy (XRT) at 6-12 Gy to at least 1, and up to a maximum of 5, metastatic fields, will be administrated on days -4 -3 -2 or -3 -2 -1 before the first and the third cycle of vaccine+IL-2. The first day of administration of vaccine is day +1 and of IL-2 is day +2. Treatment vaccine plus IL-2 (dose 18 MIU/m2/day in 500cc by continuous IV infusion for 72 hours) will be administered every 3 weeks up to 6 cycles. Total duration of the trial: 36 months * Enrolment period: 24 months * Treatment: maximum of 6 cycles (5 months) per patient * Follow-up every three months until patient died (follow-up until PD and only survival contacts and subsequent therapy for metastatic disease after PD).

Detailed description

Vaccination with dendritic cells pulsed with autologous tumor homogenate in combination with HD-IL2 and immunomodulating radiotherapy in metastatic RCC: a phase II trial Proof of Principle phase II study Study Design Single center, open-label trial to assess response rate Study Duration Total duration: 36 months Enrollment: 24 months Treatment: 5 months per patient Follow-up every three months Primary objectives: Overall Response Rate (ORR) by irRC Secondary end points: 1. Toxicity 2. Overall Survival 3. Duration of response 4. PFS 5. ORR by RECIST 1.1 6. Prognostic and predictive marker response 7. Immunological response Study Product, Dose, Route, Regimen and duration of administration Three daily doses boost radiotherapy (XRT) at 6-12 Gy to at least 1, and up to a maximum of 5, metastatic fields, will be administrated on days -4 -3 -2 or -3 -2 -1 before the first and the third cycle of vaccine+IL-2. The first day of administration of vaccine is day +1 and of IL-2 is day +2. The intradermal autologous dendritic cell vaccine loaded with autologous tumor homogenate plus IL-2 (dose 18 MIU/m2/day in 500cc by continuous IV infusion for 72 hours) will be administered every 3 weeks up to 6 cycles. Statistical Methodology This is a Proof of Principle trial with a minimax two stage design: • Step 1: 12 patients enrolled; A 5% response rate will preclude further study, whereas a 20% response rate will indicate that further study would be warranted. Using alfa and beta errors of 0.10, if an objective response is observed in at least 1 of the 12 patients enrolled during the first stage the study will go on with a: • Step 2: recruitment of an additional 25 patients The treatments will be considered active if an objective response is observed in 4 out of 37 patients treated. The enrolment period will be 24 months. To ensure patients' safety, a continued safety evaluation by an independent DSMB will be performed and formal rules will be planned to continue or stop the recruitment; in particular, the enrollment will be interrupted when six patients completed at least one cycle of the combo treatment and they will be evaluated for safety: if grade ≥3 AEs (except for fever and rash that will be consider only for grade 4) in 2 (two) or more patients will be observed within 30 days after completion of the first dose of combo treatment, the study will be interrupted.

Interventions

RADIATIONboost radiotherapy (XRT)

Three daily doses boost radiotherapy (XRT) at 6-12 Gy to at least 1, and up to a maximum of 5, metastatic fields, will be administrated on days -4 -3 -2 or -3 -2 -1 before the first and the third cycle of vaccine+IL-2

The first dose (7 to 14 x 10\_6 total dendritic cells) will be performed with freshly prepared vaccine, 9 days after leukapheresis; on day +1 starting from cycle 2 (3 weeks after the first cycle, on completion of QA assessments on the cryopreserved products), 5 additional doses will be administered every 3 weeks until maximum six vaccines.

high dose IL-2: 18 MIU/m2/day in 500cc administered by continuous IV infusion for 72 hours starting day +2.

Sponsors

Istituto Romagnolo per lo Studio dei Tumori Dino Amadori IRST S.r.l. IRCCS
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
19 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Signed Written Informed Consent: patients must be willing and able to give written informed consent, that have to be given before starting of screening procedure. 2. Availability of autologous tumor tissue fulfilling acceptance criteria prescribed by the Product Specification File. 3. Patients must have histologically or cytologically confirmed RCC (all histology types except for urothelial cancer); 4. Patients must have stage IV disease in progression after at least 1 TKI and/or antiangiogenetic and/or mTOR inhibitors therapy (patients must have finished prior treatments at least 4 weeks before the first IL2 dose) 5. Patients must have at least one measurable lesion, according to the irRC response criteria (see section 8 ), after asportation of tumor tissue for vaccine preparation. The tumor lesions that will be irradiated are excluded for response evaluation. 6. Life expectancy of greater than 3 months. 7. ECOG performance status 0-1 8. Patients must have organ and marrow function as defined below: * leukocytes \>4000/µL * absolute neutrophil count \>1,500/µL * platelets \>100,000/µL * total bilirubin within normal institutional limits * AST(SGOT)/ALT(SGPT) \<2.5 X institutional upper limit of normal * creatinine \< 1.5 mg/dl * haemoglobin \>8.0 gm/dl * hematocrit \<30% 9. ECG and echocardiogram within normal institutional limits 10. Pulmonary function tests within normal institutional limits (to be performed only in patients with lung metastases or history of impaired lung function) 11. No contraindication for the use of vasopressor agents 12. Negative screening tests for HIV, HBV HCV and syphilis not older than 30 days before performing any of the GMP-regulated activities required (leukapheresis, collection of tumor biopsies to be used for tumor homogenate preparation); 13. Men and women aged \> 18 years. 14. Women of childbearing potential (WOCBP) must be using an adequate method of contraception to avoid pregnancy throughout the study and for up 8 weeks after the study, in order to minimize the risk of pregnancy; 15. Patients must have normal organ and marrow function according to clinical practice.

Exclusion criteria

1. Patients who have positive tests to HCV, HBV, HIV, or syphilis (specific blood testing must be performed within 30 days before any GMP-regulated activity (leukapheresis and collection of tumor biopsies to be used for tumor homogenate preparation). 2. Patients who did not have prior lines of systemic therapy for advanced disease. 3. Participation in another clinical trial with any investigational agents within 30 days prior to study screening. 4. Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements (on physician's judgment). 5. Other known malignant neoplastic diseases in the patient's medical history with a disease-free interval of less than 3 years (except for previously treated basal cell carcinoma and in situ carcinoma of the uterine cervix); 6. Patients who have had chemotherapy or radiotherapy or immunotherapy within 4 weeks (6 weeks for nitrosoureas or mitomycin C) prior to entering the study or those who have not recovered from adverse events due to agents administered more than 4 weeks earlier. 7. Patients with known brain metastases should be excluded from this clinical trial because of their poor prognosis and because they often develop progressive neurologic dysfunction that would confound the evaluation of neurologic and other adverse events. 8. History of allergic reactions attributed to compounds of similar chemical or biologic composition to IL-2 or other agents used in the study. 9. Any autoimmune disease which could be exacerbated by IL-2 10. A medical illness requiring chronic treatments with corticosteroids or other immunosuppressive agents 11. A history of significant cardiovascular disease, including myocardial infarction, congestive heart failure, primary cardiac arrhythmias, angina pectoris or cerebrovascular accident 12. HIV-positivity, whether or not symptomatic 13. Any contraindication to undergo leukapheresis as evaluated by transfusionist (e.g. severe anemia, piastrinopenia, oral anticoagulant therapy) or to undergo surgery.

Design outcomes

Primary

MeasureTime frameDescription
Overall Response Rate (ORR) by Immune related Response Criteria( irRC)up to 24 monthsThe analysis will be performed on an intention to treat population, i.e. all patients having received at least 2 cycles of therapy.

Secondary

MeasureTime frameDescription
Overall survival (OS)up to 24 monthsmeasured from the date of registration until the date of death from any cause or the last date the patient was known to be alive and will be estimated with Kaplan-Meier method and the log rank test
Duration of responseup to 24 monthstime calculated from documentation of tumor response to disease progression
Progression free survivalup to 24 monthsmeasured from registration until disease progression or death
Immunologic efficacyup to 24 monthsImmunologic efficacy will be measured by best DTH score (reactivity to homogenate or KLH) obtained after at least 4 vaccine doses, alone or combined with IFN-g ELISPOT analysis of tumor antigen-specific circulating effectors obtained after a minimum of 4 vaccine doses, both compared with prevaccine samples
Adverse events evaluationup to 24 monthsNumber of patients with treatment related Adverse events (AE) will be evaluated by CTCAE v 4.03 criteria The percentage of patients reporting an AE up to 30 days after HD-IL-2 treatment will be tabulated with 95% confidence intervals, by type of AE. The overall rate of grade 3-4 related AE will be computed

Countries

Italy

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026