Hodgkin and Indolent Lymphomas: 2016 Sonali M. Smith, MD Associate Professor, Section of Hematology/Oncology Director, Lymphoma Program The University of Chicago Chicago, IL Disclosures and COI Activity Consultant Company Genentech, Celgene, Gilead, Pharmacyclics, JUNO, AbbVie, TGTX, Portola, 47, Amgen HODGKIN LYMPHOMA General approach to cHL Favorable Early/limited stage Bulky IIB, III/IV Unfavorable ABVD2 plus ISRT ABVD4 plus ISRT Stanford V plus IFRT ABVD6 ABVD3 if PET3 neg ABVD6 plus RT Stanford V ABVD6 Stanford V 5-Point Scale for Interim-PET Interpretation First International Workshop on Interim PET Scan in Lymphoma Deauville, France 1. No uptake 2. Uptake ≤ mediastinum 3. Uptake > mediastinum but ≤ liver Negative scan 4. Moderately increased uptake compared to liver Positive scan 5. Markedly increased uptake compared to liver or new areas of FDG uptake SLIDES COURTESY OF DAVID STRAUSS PET— ABVD x 2 cycles PET+ Escalated BEACOPP x 2 cycles + 3060 cGy IF RT Follow-up Post cycle 2 PET/CT* ABVD x 2 cycles Registration CALGB 50604 Design *PET/CT reviewed centrally (2 reviewers, 1 adjudicator) assessed according to 5-point scale (Deauville criteria) Phase II trial in newly-diagnosed stages I/II non-bulky HL conducted in Intergroup (CALGB/Alliance, SWOG, ECOG) Prophylactic G-CSF only after febrile neutropenia or neutropenia and infection with ABVD. Prophylactic G-CSF with escalated BEACOPP. CALGB 50604 Consort Diagram Registered to CALGB 50604 N = 164 Excluded (N=13) Cancelled Not eligible w/d prior to cycle 2 n=6 n=4 n=3 PET assessment N = 151 PET-negative N = 137 Excluded (N=6) Insufficient follow-up data Analyzed N = 131 PET-positive N = 14 n=6 Excluded (N=1) Insufficient follow-up data Analyzed N = 13 Data collected through June 10, 2015 n=1 CALGB 50604 Progression Free Survival 0.6 0.4 Follow-up time Median: 2.1 years Range: < 1month – 4.3 years 1 Death (Suicide – PET +) 0.2 PET-negative PET-positive N= 131 N= 13 Events= 8 Events= 4 p-value= 0.0008 0.0 Probability progression free 0.8 Post cycle 2 ABVD PET- and PET+ Patients 0 1 2 3 4 Years from Study Entry Est. 3-yr PFS Hazard Ratio PET - 92% (84%-96%) 6.04 (1.82-20.08) PET + 66% (32%-86%) What about advanced stage and bulky disease? Results and Patient Allocation SLIDES COURTESY OF Kerry Savage Results: FFTF by end-PET uptake SLIDES COURTESY OF Kerry Savage Biologic rationale for PD-1 inhibition in cHL PD-L1 expression in cHL Shipp M, et al., Blood 2010 Chen BJ, et al. Clin Cancer Res. 2013;19:3462–3473. Ansell SM, et al. N Engl J Med. 2015;372:311–319. Copy Gain Amplification PD-L1/L2 copy gains and amplification visible by FISH Nivolomab extended follow up data Slide courtesy of Steve Ansell KEYNOTE-013 cHL Pt Cohort: Pembrolizumab After BV Failure Armand P, et al. ASH 2015. Abstract 584. ClinicalTrials.gov. NCT01953692. INDOLENT LYMPHOMAS Heterogeneous outcomes in FL 1990-1999 •Relative 5-year survival 74% •Relative 10-year survival 51% 25% of patients are <40 years 2-3% transformation risk per year Swenson, et al., J Clin Oncol 23:5019-5026, 2005 Identifying risk groups within FL • • • • • Grade 1-3a vs. 3b FLIPI PET-response to chemoimmunotherapy EFS24 ?mutational spectrum Front-line setting • Line of treatment/resistance to prior therapies R2 vs R: response and PFS in recurrent FL Leonard JCO 2015 Outcome Len Ritux ORR 53% 76% CR 20% 39% Med TTP 1.1y 2.0y 2-year TTP 27% 52% Lenalidomide-rituximab toxicity profile • In both arms, approximately 20% of patients discontinued therapy early as a result of adverse event • Dose modifications occurred in 67% of len arm versus 80% in R2 arm • Dose intensity was 80% in both arms Leonard JCO 2015 Moving R2 to frontline setting in FL Study Treatment regimen n ORR CR ALLIANCE 50803 Len 20mg D1-21 q28d x 12 Ritux weekly x 4, then qomonth 66 93% 72% MDACC Len 20mg D1-21 q28 x12 Ritux D1 of each cycle x 12 50 98% 87% Len 15mg po x 19 weeks Ritux weeks 1-4, then weeks 12-15 77 81% 36% Ritux weeks 1-4, then weeks 12-15 77 61% 25% SAKK 35/10 study Martin ICML 2013 abstract 063; Fowler Lancet 2014; Kimby ASH 2014 abstract 799 Towards non-chemotherapy based treatment of FL: the “RELEVANCE” trial Lenalidomiderituximab (R2) N=1000 stage II-IV treatment-naïve FL gr 1, 2, or 3a Maintenance R2 CR PR Maintenance R R-Bendamustine R-CHOP R-CVP NCT01476787 (www.clinicaltrials.gov) PI3K as a target: BCR dependent and independent signaling idelalisib Fruman and Rommel Ca Discov 2011 Idelalisib monotherapy in “double refractory” iNHL Idela 150mg BID Gopal NEJM 2014 Idelalisib in refractory FL grade 1-3a: subset analysis (n=72) Patient characteristics: Median age 62y High-risk FLIPI 54% Bulky disease 22% Refractory to last therapy 86% Median 4 prior treatments Salles ASCO 2015 abstract 8529 Pathologic features of colitis Idelalisib-associated Colitis: Histologic Findings in 14 Patients. Weidner, Anna-Sophie; Panarelli, Nicole; Geyer, Julia; Bhavsar, Erica; Furman, Richard; Leonard, John; Jessurun, Jose; Yantiss, Rhonda American Journal of Surgical Pathology. 39(12):16611667, December 2015. DOI: 10.1097/PAS.0000000000000522 • Idelalisib-related mucosal injury show intraepithelial lymphocytosis of the surface and crypt epithelium (A) with attenuation of the surface epithelium (B). • Large, "exploding" apoptotic epithelial cells (arrow) are present in 50% of cases. • Neutrophilic infiltration of the lamina propria, cryptitis, and/or crypt abscesses are common findings. Another option for rituximab-refractory FL: novel moAb against CD20 Phase II Gauguin study showed ~50% ORR in rituximab sensitive and rituximab refractory iNHL Salles JCO 31:2920-2926 Bendamustine-obinutuzumab vs. bendamustine in ritux-ref FL Bendamustine 120mg/m2 x 6 months (n=202) Ritux-ref iNHL N=396 GA101 1000mg Bendamustine 90mg/m2 x 6 months (n=202) Primary endpoint PFS Median follow up 20 months Sehn LH et al. Proc ASCO 2015;Abstract LBA8502. GA101 maintenance GADOLIN: PFS by Independent Radiology Facility Review Sehn LH et al. Proc ASCO 2015;Abstract LBA8502. Cell Death is Governed by Interactions Among the BCL-2 Family of Proteins Pro-Apoptotic (e.g. BAX, BAK) "Activating" BH3-Only Proteins (e.g. BIM) "Inactivating" BH3-Only Proteins (e.g. BAD) Anti-Apoptotic (e.g. BCL-2, BCL-XL, MCL-1) Slide courtesy of James LaBelle, University of Chicago BR plus Venetoclax in NHL • Open-label phase I study Response, n (%) DLBCL (n = 16) FL (n = 27) MZL (n = 5) 6 (38) 21 (78) 4 (80) CR 4 (25) 8 (30) 1 (20) PR 2 (13) 13 (48) 3 (60) 2 (13) 1 (4) 0 (0) 2 (7) 0 (0) ORR SD PD 6 (38) De Vos S, et al. ASH 2015. Abstract 255. 48% grade 3/4 neutropenia Questions/Discussion