3057 - Tailored ImmunoTherapy Approach with Nivolumab in advanced Renal Cell Carcinoma (TITAN-RCC)

Background

Nivolumab (N) + ipilimumab (I) has been approved for the 1^st line treatment of IMDC intermediate and poor risk advanced RCC. However, administration of N+I in a fixed regimen with 4 induction cycles may result in more treatment related adverse events (AEs) compared with N alone. It is hypothesized that a tailored approach starting treatment with N alone and using N+I as immunotherapeutic boost will improve efficacy outcomes as compared to N alone and reduce AEs.

Methods

This multicentric European study enrolled 258 1^st and 2^nd line (after TKI) pts with IMDC intermediate and poor risk, advanced clear cell RCC between Oct. 2016 and Dec. 2018. Pts started with N 240 mg Q2W induction. Pts with early significant PD (week 8) or either SD or PD at week 16 received 2-4 N+I boost cycles. Responders (PR/CR) to N monotherapy continued with maintenance with N+I boosts only for progression. The primary endpoint is confirmed investigator assessed objective response rate (ORR) per RECIST independent in 1^st and 2^nd line. Secondary endpoints include activity of N monotherapy, remission rate with N+I boosts, safety, overall survival and QoL.

Results

108 1^st and 99 2^nd line pts were analyzed for efficacy. Median age was 65 y (range 20-87). 70 % were intermediate and 27 % poor risk. Confirmed ORR with 1^st line N monotherapy was 28.7 % (95 % CI 20 - 38). Best overall response (BOR) after N induction ± N+I boosts was 37 % (95 % CI 28 - 47) and 28 % (95 % CI 20 - 38) in 1^st and 2^nd line, respectively. 102 pts received N+I boosts for either SD (n = 35) or PD (n = 67) until week16. Of these, 12 (12 %) and 54 (53%) had a PR/CR and SD, respectively. Two (6%) pts entering boosts for SD had PD afterwards compared to 51% with early PD. Treatment-related AEs will be presented.Table:

LBA57

Including patients with early end of study e.g. due to death or immune related AEs

Conclusions

TITAN–RCC is the first study to assess the impact of a tailored approach using N+I as an immunotherapeutic boost. In 1^st line, this significantly improved ORR compared to N mono. Further follow-up is ongoing to characterize duration and depth of response.

Clinical trial identification

EudraCT: 2016-002307-26.

Editorial acknowledgement

Legal entity responsible for the study

AIO-Studien-gGmbH, Berlin, Germany.

Funding

Bristol-Myers Squibb GmbH & Co.KGaA.

Disclosure

M. Grimm: Honoraria (self), Advisory / Consultancy, Research grant / Funding (institution): Bristol-Myers Squibb; Honoraria (self): Amgen; Honoraria (self): Apogepha; Honoraria (self): Astellas; Honoraria (self): AstraZeneca; Honoraria (self): Bayer HealthCare; Honoraria (self): Hexal; Honoraria (self), Advisory / Consultancy: Intuitive Surgical; Honoraria (self): Janssen Cilag; Honoraria (self): Ipsen Pharma; Honoraria (self): Medac; Honoraria (self): MSD; Honoraria (self), Advisory / Consultancy: Novartis; Honoraria (self), Advisory / Consultancy: ONO Pharma; Honoraria (self): Pfizer; Honoraria (self): Sanofi Aventis. M. Schmidinger: Honoraria (self): Astellas; Honoraria (self): BMS; Honoraria (self): EISAI; Honoraria (self): Eusa Pharma; Honoraria (self): Exelexis; Honoraria (self): Ipsen; Honoraria (self): MSD; Honoraria (self): Pfizer; Honoraria (self): Roche. I. Duran Martinez: Honoraria (self), Advisory / Consultancy: BMS; Honoraria (self), Advisory / Consultancy: Novartis; Honoraria (self), Non-remunerated activity/ies: Ipsen; Honoraria (self), Research grant / Funding (self), Travel / Accommodation / Expenses: Roche Genentech; Honoraria (self), Research grant / Funding (self), Travel / Accommodation / Expenses: AstraZeneca; Honoraria (self), Advisory / Consultancy: Bayer; Honoraria (self), Advisory / Consultancy: Pharmacyclyc; Honoraria (self), Advisory / Consultancy: Janssen; Honoraria (self), Advisory / Consultancy: MSD. G. Baretton: Honoraria (self), Advisory / Consultancy, Research grant / Funding (self): BMS; Honoraria (self), Advisory / Consultancy, Research grant / Funding (self): Roche; Honoraria (self), Advisory / Consultancy, Research grant / Funding (self): MSD; Honoraria (self), Advisory / Consultancy: AstraZeneca; Honoraria (self), Advisory / Consultancy: Pfizer. P. Barthelemy: Advisory / Consultancy: Pfizer; Advisory / Consultancy: Ipsen; Advisory / Consultancy: Novartis; Advisory / Consultancy: BMS; Advisory / Consultancy: Roche; Advisory / Consultancy: MSD; Advisory / Consultancy: Janssen Cilag; Advisory / Consultancy: Sanofi; Advisory / Consultancy: Astellas. B. Melichar: Honoraria (self), Advisory / Consultancy: BMS; Honoraria (self), Advisory / Consultancy: MSD; Honoraria (self), Advisory / Consultancy: Novartis; Honoraria (self), Advisory / Consultancy: Merck Serono; Honoraria (self), Advisory / Consultancy: Sanofi; Honoraria (self), Advisory / Consultancy: Roche; Honoraria (self), Advisory / Consultancy: Janssen; Honoraria (self), Advisory / Consultancy: Bayer; Honoraria (self), Advisory / Consultancy: Astellas; Honoraria (self), Advisory / Consultancy: Servier; Honoraria (self), Advisory / Consultancy: Amgen; Honoraria (self), Advisory / Consultancy: Pfizer. L. Albiges: Honoraria (institution): Pfizer; Honoraria (institution): Novartis; Honoraria (institution): BMS; Honoraria (institution): Ipsen; Honoraria (institution): Roche; Honoraria (institution): MSD; Honoraria (institution): AstraZeneca. All other authors have declared no conflicts of interest.