Combination strategies SAMO Interdisciplinary Workshop on Chest Tumors 9th and 10th October 2015 Hotel Hermitage, Lucerne David Carbone, MD PhD Director, James Thoracic Center The Ohio State University Columbus, Ohio USA Disclosures • • • • • • • • • • • • Bayer Health Care Biodesix Biothera Boehringer Ingelheim Bristol Myers-Squibb (BMS) Clovis Oncology Eisai Inc. Genentech/Roche GlaxoSmithKline (GSK) MedImmune Merck Novartis Peregrine Pharmaceuticals, Inc. Pfizer Synta Pharmaceuticals Corp. This includes receipt of grants/research support, receipt of honoraria or consulting fees, and participation in company sponsored speaker’s bureaus. I-O agents have a unique MoA, offering the opportunity for combination with other agents I-O Drake C. Ann Oncol. 2012;23(suppl 8):viii41–viii46; Hannani D, et al. Cancer J 2011;17:351–358; Ménard C, et al. Cancer Immunol Immunother. 2008;57:1579–1587; Ribas A, et al. Curr Opin Immunol. 2013:25:291–296. Examples of ongoing combination trials with I-O therapies, many more in development Chemotherapy Radiotherapy Targeted Immunotherapy + ipilimumab (NCT01454102) + anti-KIR (NCT01714739) + anti-LAG3 (NCT01968109) Nivolumab (anti-PD-1) + cisplatin/gemcitabine, cisplatin/pemetrexed or carboplatin/paclitaxel (NCT01454102) NR + bevacizumab or erlotinib (NCT01454102) Pembrolizumab (anti-PD-1) + cisplatin/pemetrexed or carboplatin/paclitaxel (NCT01840579) + paclitaxel/carboplatin ± bevacizumab (NCT02039674) + SBRT (NCT02444741) + chemorads in LS SCLC (NCT02402920 + SBRT (NCT02492568) + gefitinib or erlotinib (NCT02039674) + ipilimumab (NCT02039674) + INCB024360 (NCT02178722) NR + gefitinib (NCT02088112) + AZD9291 (NCT02143466) + tremelimumab (NCT02000947, NCT02141347) + ipilimumab (NCT02174172) MEDI-4736 (anti-PD-L1) NR Atezolizumab (anti-PD-L1) + carbo/pac (NCT02366143) + carbo/nab-pac (NCT02367781) + gem/cis (NCT02409355) + carbo/pem (NCT02409342) + chmoRT (NCT02525757) + SBRT (NCT02400814) + erlotinib (NCT02013219) + cobimetinib (NCT01988896) Ipilimumab (anti-CTLA-4) Various (NCT00527735; NCT01165216; NCT01285609; NCT01331525; NCT01450761;NCT1454102) + stereotactic radiosurgery* (NCT02107755, NCT02239900) + ionizing radiation (NCT02221739) + erlotinib or crizotinib (NCT01998126) + nivolumab (NCT01454102) + pembrolizumab (NCT02039674) Tremelimumab (anti-CTLA-4) NR NR + gefitinib (NCT02040064) + MEDI-4736 (NCT02000947) *Trial in patients with melanoma with metastatic disease to a visceral organ (lung, liver, brain, adrenal, nodal station outside the regional lymph drainage of the primary, vertebral bodies). NR = no trials reported. www.clinicaltrials.gov. Accessed October 2015. I-O agents have a unique MoA, offering the opportunity for combination with other agents I-O Drake C. Ann Oncol. 2012;23(suppl 8):viii41–viii46; Hannani D, et al. Cancer J 2011;17:351–358; Ménard C, et al. Cancer Immunol Immunother. 2008;57:1579–1587; Ribas A, et al. Curr Opin Immunol. 2013:25:291–296. Response Patterns for Immunotherapy Compared With Targeted Therapy Targeted Therapy Percent Alive Percent Alive Immunotherapy 0 1 2 3 Yrs Ribas A, et al. Clin Cancer Res. 2012;18:336-341. 0 1 2 Yrs 3 Combining Immunotherapy and Targeted Therapies Survival Targeted Therapy Combination??? Immunotherapy Controls/ Conventional Therapy Yrs Adapted from Ribas A, et al. Clin Cancer Res. 2012;18:336-341. TKI – immunotherapy combinations are the topic of my lecture tomorrow I-O agents have a unique MoA, offering the opportunity for combination with other agents I-O Drake C. Ann Oncol. 2012;23(suppl 8):viii41–viii46; Hannani D, et al. Cancer J 2011;17:351–358; Ménard C, et al. Cancer Immunol Immunother. 2008;57:1579–1587; Ribas A, et al. Curr Opin Immunol. 2013:25:291–296. Anti-CTLA-4 plus chemotherapy as 1st-line treatment: ipilimumab plus carboplatin/paclitaxel as an example CA184-041: phase 2 study results, no prior therapy for lung cancer, stage IIIB/IV NSCLC, ECOG PS ≤1, all histologies Ipilimumab + concurrent chemotherapy Ipilimumab + phased chemotherapy 1.0 irPFS, probability irPFS, probability 1.0 0.8 0.6 0.4 0.2 0 0.8 0.6 0.4 0.2 0 0 2 4 6 8 10 12 14 16 0 2 4 Time, months Placebo Events/ patients 56/66 Ipilimumab 55/70 Median irPFS, months 4.63 5.52 95% CI 4.14, 5.52 8 10 12 14 16 Time, months HR 4.17, 6.74 0.81 Lynch T, et al. J Clin Oncol. 2012;30:2046–2054. 6 P- value Placebo 0.13 Events/ patients 56/66 Ipilimumab 54/68 Median irPFS, months 4.63 5.68 95% CI HR P -value 4.14, 5.52 4.76, 7.79 0.72 0.05 CA209-012 (CheckMate 012) Study Design: Nivolumab in Combination With Chemotherapy Chemotherapy-naïve patients with stage IIIB or IV NSCLC Squamous Non-squamous Nivolumab 10 mg/kg IV Q3W + Gem 1250 mg/m2 + Cis 75 mg/m2 (four 21-day cycles) Nivolumab 10 mg/kg IV Q3W + Pem 500 mg/m2 + Cis 75 mg/m2 (four 21-day cycles) Any histology Nivolumab 10 mg/kg IV Q3W + Pac 200 mg/m2 + Carb AUC 6 (four 21-day cycles) Nivolumab 10 mg/kg IV Q3W until disease progression or unacceptable toxicity Nivolumab 5 mg/kg IV Q3W + Pac 200 mg/m2 + Carb AUC 6 (four 21-day cycles) Nivolumab 5 mg/kg IV Q3W until disease progression or unacceptable toxicity Primary objective: safety and tolerability Secondary objectives: ORR and PFS rate at 24 weeks Exploratory objective: OS Carb = carboplatin; Cis = cisplatin; Gem = gemcitabine; ORR = objective response rate; OS = overall survival; Pac = paclitaxel; Pem = pemetrexed; PFS = progression-free survival; Q3W = every three weeks 11 Efficacy Endpoints Nivolumab 5 mg/kg Nivolumab 10 mg/kg Gem/Cis (n = 12) Pem/Cis (n = 15) Pac/Carb (n = 15) Pac/Carb (n = 14) ORR, % 33 47 47 43 SD, % 58 47 27 43 18-month OS rate, % 33 60 40 86 Median OS, weeks 51 83 65 NR NR = not reached 12 Best Percent Change in Target Lesions Change in Baseline Target Lesions (%) 100 80 60 40 20 Nivolumab 10 mg/kg + Gem/Cis Nivolumab 10 mg/kg + Pem/Cis Nivolumab 10 mg/kg +Pac/Carb Nivolumab 5 mg/kg + Pac/Carb 0 -20 -40 -60 -80 -100 Patients Only includes patients with baseline target lesions and at least one post-baseline target lesion assessment with non-missing value 13 Percent Change in Target Lesions Nivolumab 10 mg/kg + Gem/Cis Squamous 100 Change From Baseline (%) Nivolumab 10 mg/kg + Pem/Cis 80 80 60 60 40 40 20 20 0 0 -20 -20 -40 -40 -60 -60 -80 -80 -100 -100 0 6 12 18 24 30 36 42 48 54 Nonsquamous 100 60 0 66 6 12 18 Time Since First Dose (Weeks) 60 20 0 0 -20 -20 -40 -40 -60 -60 -80 -80 -100 -100 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 Time Since First Dose (Weeks) 54 60 66 72 78 84 90 96 102 108 114 120 126 108 Squamous Nonsquamous 60 40 12 48 80 20 6 42 100 40 0 36 Nivolumab 5 mg/kg + Pac/Carb Squamous Nonsquamous 80 30 Time Since First Dose (Weeks) Nivolumab 10 mg/kg + Pac/Carb 100 24 114 120 126 0 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 Time Since First Dose (Weeks) + first appearance of new lesion 14 Efficacy Endpoints According to Baseline PD-L1 Expression Baseline PD-L1 expressiona PD-L1+ PD-L1– Samples sufficient for analysis, n 17 27 ORR,b % 53 41 18-month OS rate, % 59 51 Median OS, weeks 88 83 aPositivity defined as tumor cell membrane staining with ≥5% expression in a minimum of 100 evaluable cells PRs or CRs only (per RECIST v1.1) bConfirmed 15 Overall Survival by Treatment Arm Regimen mOS (wks) Nivolumab 10 mg/kg + Gem/Cis 51 Nivolumab 10 mg/kg + Pem/Cis 83 x Nivolumab 10 mg/kg + Pac/Carb 100 Nivolumab 5 mg/kg + Pac/Carb 65 NR OS (%) 80 60 40 20 0 B/L 12 24 36 48 60 72 84 96 108 120 132 Time Since First Dose (Weeks) mOS = median OS 16 Chemo-Nivo conclusions ORR for nivolumab plus chemotherapy in 1st-line treatment of patients with advanced NSCLC are similar to those previously reported for chemotherapy alone Nivolumab 5 mg/kg Q3W in combination with paclitaxel/carboplatin may provide clinical benefit beyond nivolumab monotherapy or single modality chemotherapy – Encouraging 18-month OS rate of 86% with a lack of progressive disease at first restaging Responses were observed regardless of tumor PD-L1 expression Nivolumab plus chemotherapy demonstrates a manageable safety profile, reflecting additive toxicities of individual agents These data support further evaluation of nivolumab 5 mg/kg Q3W in combination with chemotherapy 17 Epigenetic Priming for Chemotherapy and PD-1 Blockade Tumor-intrinsic effects of combination epigenetic therapy entinostat Synergy azacitidine Epigenetic lung cancer study - trial schema MS275 entinostat 5-Aza 5-aza Day • • • • • • 11 8 8 15 15 22 2929 36 36 Single-arm phase II Simon two-stage design 5AC dosing = 40 mg/m2 SQ daily on days 1-6 and 8-10 Entinostat dosing = 7 mg PO days 3 & 10 Cycle length = 28 days 3% RR, Median Survival 8.6 months Juergens R et al Cancer Disc 2011 Charlie Rudin et al, 2013 Immunotherapy After Epigenetic Therapy Epigenetic Therapy Followed by Anti-PD-L1: An example of response 10/2011 12/2011 Pt 010-6084 – History 64 y/o Diagnosed with IIIB adenoca Rx with XRT+ Tax/carbo, pemetrexed + carbo, Entinostat + 5aza x 6 cycles M. Brock, C. Rudin, J. Brahmer, S. Baylin Synergy between Epigenetic Modulation and PD-1 pathway blockade - Unleashing the Perfect Storm against Tumors AZA/HDACi Rx Intratumoral pro-inflammatory responses: IL-1,IL-18, IFN pathway, HLA Adaptive Resistance: PD-L1 PD-1 Blockade Tumor De novo antigen expression: ie C-T Antigens Enhanced Antitumor Response T cells De-repression of g-IFN promoter in tolerant T cells PD-1 from promoter demethylation PD-1 Blockade Epigenetic Priming Study Design Study population Metastatic NSCLC 1 – 2 prior therapies Epigenetic priming 1 R Nivolumab Azacitidine 40 mg/m2 SC d 1-6, 810 Entinostat 7mg PO days 3 + 10 28 day cycle × 2 Nivolumab 3 mg/kg IV q 2 weeks Until progression ECOG PS 0 - 1 1 Nivolumab 3 mg/kg IV q 2 weeks Until progression CC-486 300 mg PO d1-21 28 day cycle × 2 Biopsy Biopsy (CC-486 is an oral azacytidine) I-O agents have a unique MoA, offering the opportunity for combination with other agents I-O Drake C. Ann Oncol. 2012;23(suppl 8):viii41–viii46; Hannani D, et al. Cancer J 2011;17:351–358; Ménard C, et al. Cancer Immunol Immunother. 2008;57:1579–1587; Ribas A, et al. Curr Opin Immunol. 2013:25:291–296. Mechanism of Action of PD-1 and CTLA-4 Blockade MHC = major histocompatibility complex; TCR = T-cell receptor Brahmer JR, et al. J Clin Oncol 2010,Wang C, et al. Cancer Immunol Res 2014, Pardoll DM. Nat Rev Cancer 2012;12:252–64. 27 CA209-012 Study Design: Nivolumab Plus Ipilimumab Stage IIIB or IV NSCLC, no prior chemotherapy for advanced NSCLC, and Eastern Cooperative Oncology Group performance status 0 or 1 Sq Non-sq Nivolumab 1 mg/kg IV Q3W + ipilimumab 3 mg/kg IV Q3W (four 21-day cycles) Sq Non-sq Nivolumab 3 mg/kg IV Q3W + ipilimumab 1 mg/kg IV Q3W (four 21-day cycles) Nivolumab 3 mg/kg IV Q2W until disease progression or unacceptable toxicitya Primary objective: safety and tolerability Secondary objectives: ORR (by RECIST v1.1)b and PFS rate at 24 wks Exploratory objective: OS aPts were permitted to continue study treatment beyond RECIST v1.1-defined progression if they were considered to be deriving clinical benefit and tolerating study treatment bResponse was assessed at wks 10, 17, and 23, and every 3 months thereafter until disease progression non-sq = non-squamous; Q2W = every two wks; Q3W = every three wks; RECIST = Response Evaluation Criteria In Solid Tumors; sq = squamous; wks = weeks 28 Safety While active, q3wk ipi was toxic The majority of toxicity occurred during the induction phase (nivolumab + ipilimumab Q3W for four cycles) as compared with the maintenance phase – Across arms, grade 3–4 AEs were reported in 32– 50% of pts and 21–27% of pts during induction and maintenance, respectively Thus q6 wk and q 12 wk schedules were added 29 Ipi-Nivo Response rates Hellman et al, ECCO 2015 Ipi-Nivo waterfall plot Hellman et al, ECCO 2015 Hellman et al, ECCO 2015 Response by smoking status Hellman et al, ECCO 2015 Ipi-nivo Response by EGFR mutation status Hellman et al, ECCO 2015 Ipi-Nivo Response by PDL1 status Hellman et al, ECCO 2015 Ipi-Nivo AE grades Hellman et al, ECCO 2015 Ipi-Nivo AE types Hellman et al, ECCO 2015 PFS and OS in NSCLC pts Treated With Nivolumab Plus Ipilimumab PFS Nivolumab 1 mg/kg + ipilimumab 3 mg/kg (mPFS 16.1 wks) 100 80 Nivolumab 3 mg/kg + ipilimumab 1 mg/kg (mPFS 14.4 wks) 60 PFS rate at 24 wks = 44% 40 20 100 80 1-year OS rate = 65% OS (%) PFS (%) OS PFS rate at 24 wks = 33% 60 1-year OS rate = 44% 40 Nivolumab 1 mg/kg + ipilimumab 3 mg/kg (mOS NR) 20 0 Nivolumab 3 mg/kg + ipilimumab 1 mg/kg (mOS 47.9 wks) 0 B/L 12 24 36 48 60 72 B/L Time Since First Dose (Weeks) 12 24 36 48 60 72 84 Time Since First Dose (Weeks) Number of Pts at Risk Number of Pts at Risk Nivolumab 1 mg/kg + ipilimumab 3 mg/kg 24 10 8 6 3 1 0 Nivolumab 1 mg/kg + ipilimumab 3 mg/kg 24 22 21 19 15 11 2 0 Nivolumab 3 mg/kg + ipilimumab 1 mg/kg 25 14 8 4 3 2 0 Nivolumab 3 mg/kg + ipilimumab 1 mg/kg 25 20 17 14 12 10 2 0 mOS = median OS; mPFS = median PFS 38 Hellman et al, ECCO 2015 CheckMate 032 Study Design SCLC (n = 128) with progressive disease after ≥1 prior line of therapy, including a platinum-based regimen in first line (unselected by PD-L1 expression) Nivolumab 3 mg/kg IV Q2W (n = 40) Nivolumab 1 mg/kg + Ipilimumab 1 mg/kg IV Q3W for 4 cycles (n = 3) Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg IV Q3W for 4 cycles (n = 47) Nivolumab 3 mg/kg IV Q2W Primary objective: ORR per RECIST v1.1 Secondary objective: safety Exploratory objectives: PFS, OS, biomarker analysis Database lock: February 16, 2015 aData from this cohort will be presented at a later time. aNivolumab 3 mg/kg + Ipilimumab 1 mg/kg IV Q3W for 4 cycles (n = 38) Treatment-related AEs in ≥5% Patients Nivolumab 3 (n = 40) Any Grade, % 4, % Grade 3– Nivolumab 1 + Ipilimumab 3 (n = 47) Any Grade, % 4, % Grade 3– Total Treatment-related 53 15 77 34 AEs Fatigue 18 2.5 21 0 Diarrhea 13 0 23 8.5 Nausea 10 0 13 2.1 Vomiting 2.5 0 8.5 4.3 Decreased appetite 10 0 4.3 0 Pruritus 7.5 0 19 2.1 Rash 2.5 0 21 4.3 Rash maculopapular 0 0 13 4.3 Hypothyroidism 2.5 0 15 0 Hyperthyroidism 2.5 0 13 0 AST increased 5.0 0 4.3 0 Amylase increased 2.5 2.5 6.4 2.1 Lipase increased 0 n = 1; nivolumab 1 + ipilimumab 0 3, n = 1) and resolved11with immunosuppressive6.4 Limbic encephalitis of grade 2 occurred in 2 pts (nivolumab, treatment. One pt (nivolumab, n = 1) had grade 4 limbic encephalitis which did not resolve with immunosuppressive treatment. Pneumonitis 5.0 0 2.1 2.1 Summary of Clinical Activity ORR, % Complete response, % Partial response, % Stable disease, % Disease control rate, % Progressive disease, % Death prior to first response assessment, % Not evaluable (no tumor assessment follow-up), % Median time to objective response, mos Median DOR, mos (95% CI) Range Nivolumab (n = 40) 18 0 18 20 38 53b Nivolumab + Ipilimumaba (n = 46) 17 2.2 15 37 54 37 10 6.5c 0 2.2d 1.6 NR 4.1–11+ 2.2 6.9 (1.5, NR) 1.5–11.1+ • Of 17 patients with SD (nivolumab + ipilimumab), 7 had confirmed PR after DBL, resulting in an updated ORR of 32.6%; no additional responses occurred in the nivolumab monotherapy arm aCombined data for nivolumab 1 +iIpilimumab 1 and nivolumab 1 + ipilimumab 3 cohorts. In the nivolumab 1 + ipilimumab 3 cohort, 4 pts had not reached first tumor assessment at DBL. b1 pt had PD in spine requiring surgery. c1 pt died due to unrelated AE, 1 pt died due to treatment-related myasthenia gravis, 1 pt died due to PD. d1 pt had unrelated AE leading to permanent discontinuation and had no post baseline tumor assessment. Changes in Tumor Burden Nivolumab + Ipilimumaba Nivolumab 100 100 Nivolumab 3 Percentage Change From Baseline (%) 75 Nivolumab 1 + Ipilimumab 1 75 Nivolumab 1 + Ipilimumab 3 50 First occurrence of new lesion Confirmed PR or CR 50 Patients still on treatment 25 25 0 0 -25 -25 -50 -50 -75 -75 -100 -100 0 6 12 18 24 30 36 Time (weeks) aCombined 42 48 54 60 66 % change truncated to 100% 0 6 12 18 24 30 36 42 48 Time (weeks) data for nivolumab 1 + ipilimumab 1 and nivolumab 1 + ipilimumab 3 cohorts. Only pts with target lesion at baseline and ≥1 on-treatment tumor assessment are included (nivolumab, n = 34, nivolumab + ipilimumab, n = 40). 54 60 66 Tumor Responses (PD-L1 expression) 125 150 Nivolumab 100 Best Reduction from Baseline in Lesion (%) Target 150 Nivolumab + Ipilimumaba 125 100 <1% PD-L1 75 75 ≥1% PD-L1 50 50 Not evaluableb 25 25 Confirmed responders 0 0 -25 -25 -50 -50 -75 -75 -100 -100 Evaluable samples (40 of 90) aCombined PD-L1 expression level, n (%) <1% ≥1% Nivolumab (n = 22) 15 (68) 7 (32) Nivolumab + Ipilimumab (n = 18) 12 (67) 6 (33) data for nivolumab 1 + ipilimumab 1 and nivolumab 1 + ipilimumab 3 cohorts. bNot evaluable due to specimens that are not quantifiable, indeterminate, or not yet obtained; 10 nonevaluable samples and 8 not yet obtained in the nivolumab arm, 6 nonevaluable samples and 26 not yet obtained in the nivolumab 1 + ipilimumab 3 arm. Only pts with target lesion at baseline and ≥1 on-treatment tumor assessment are included (nivolumab, n = 34, nivolumab + ipilimumab, n = 40). Overall Survival 100 90 mOS, mos (95% CI) 80 70 Nivolumab (n = 40) Nivolumab + Ipilimumaba (n = 50) 4.4 (2.9, 9.4) 8.2 (3.7, NR) OS (%) 60 50 Nivolumab + Ipilimumab 40 Nivolumab 30 mOS = 4.4 mos 20 mOS = 8.2 mos 10 0 0 3 6 9 12 15 Time (months) Number of Patients at Risk Nivolumab 40 26 16 7 3 0 Nivolumab + Ipilimumab 50 25 10 5 2 0 aCombined data for nivolumab 1 + ipilimumab 1 and nivolumab 1 + ipilimumab 3 cohorts Novel immune combinations: T-cell activation is a multiple signal process Many possible combination partners with PD-1 targeted therapies Mahoney et al, Nature Reviews 2015 Immunological targets under clinical development Immunological pathway Examples in clinical trials Ipilimumab CTLA4 Tremelimumab Pembrolizumab (PD1) Nivolumab (PD1) Atezolizumab (formerly MPDL3280A) (PDL1) PD1–PDL1 MEDI4736 (PDL1) Avelumab (PDL1) PDR001 (PD1) TNF and TNFR superfamilies 4-1BB–4-1BB ligand Urelumab, PF-05082566 OX40–OX40 ligand MEDI6469 GITR TRX518 CD27 Varlilumab TNFRSF25–TL1A CD40–CD40 ligand CP-870893 HVEM–LIGHT–LTA Most advanced stage of clinical development FDA approved Phase III FDA approved FDA approved HVEM–BTLA–CD160 IgSF LAG3 TIM3 Preclinical BMS-986016 Phase III Phase III Phase I Phase I Phase II Phase II Phase I Phase II Preclinical Phase I Preclinical Phase I Preclinical Natural killer cell targets KIRs Lirilumab Phase II ILTs and LIRs Preclinical NKG2D and NKG2A IPH2201 Phase I MICA and MICB Preclinical CD244 Preclinical Suppressive myeloid cells CSF1R Emactuzumab Soluble mediators IDO INCB024360 TGFβ Galunisertib Adenosine–CD39– CD73 Ulocuplumab, CXCR4–CXCL12 BKT140 Other Bavituximab Phosphatidylserine Siglecs B7 and CD28‐related proteins ICOS–ICOS ligand B7-H3 MGA271 B7-H4 Preclinical SIRPA–CD47 Preclinical Phase I Preclinical VEGF VISTA Preclinical HHLA2–TMIGD2 Butyrophilins, including BTNL2 CD244–CD48 TIGIT and PVR family members Preclinical Preclinical Neuropilin CC-90002 Bevacizumab MNRP1685A Phase I Phase II Phase I Preclinical Phase I/II* Phase II/III Phase I FDA approved Phase I Mahoney et al, Nature Reviews 2015 Preclinical Preclinical 47 | I-O agents have a unique MoA, offering the opportunity for combination with other agents I-O Drake C. Ann Oncol. 2012;23(suppl 8):viii41–viii46; Hannani D, et al. Cancer J 2011;17:351–358; Ménard C, et al. Cancer Immunol Immunother. 2008;57:1579–1587; Ribas A, et al. Curr Opin Immunol. 2013:25:291–296. Radiation and Immunotherapy Tang et al, Cancer Immunol Res, 2(9); 831–8. 2014 Potential of anti-CTLA-4 plus radiation: ipilimumab in one patient with melanoma as an example • • The target and other lesions regressed Regression of distant lesions may be due to an enhanced systemic response A B August 2009 C D November 2010 January 2011 E April 2011 October 2011 Ipilimumab F Recurrence of unresectable cancer Induction Maintenance Stable December 2010 Aug. 2009 A Sept. 2009 Radiation Maintenance Slow Progression Dec. 2009 Figure adapted from Postow M, et al. N Engl J Med. 2012;366(10): 925–931. Nov. 2010 A Response Dec. 2010 B Jan. 2010 C Stable April 2010 D Oct. 2010 E STIMILI: A randomized phase II trial of consolidation ipilimumab vs placebo in limited-stage SCLC after chemoradiotherapy • Biomarker collaboration: G Coukos, Lausanne 52 | Early Stage disease Combination with surgery ETOP | Name Project | Title Presentation | Zurich, July 27, 2009 SOC preoperative evaluation Early Stage Disease: Neoadjuvant therapy D1 D21 D42 Treatment Atezolizumab Atezolizumab Surgery Evaluation CT + PET/CT CT + PET/CT Biomarkers Tumor biopsy blood Tumor sample blood SOC adjuvant therapy Combinations and new directions • Combinations are being studied with everything imaginable – PD-1 and chemotherapies, first and later lines – PD-1 and targeted therapies, up-front or upon resistance – Neoadjuvant/Adjuvant – Radiation therapy – PD-1 and anti-CTLA4 or other immune modulators – Vaccines • We have a lot to learn about the optimal use of these agents!
© Copyright 2026 Paperzz