Myeloma Updates ASH 2011 Annual Meeting Steve Smith OHSU Knight Cancer Institute Center for Hematologic Malignancies smsteved@ohsu.edu What was new is now old… long-term data on novel agent + chemo combinations 2nd generation immunomodulators, proteasome inhibitors Will chemotherapy combinations be replaced by multitargeted therapies? Overview: Progress in MM Overall survival rates improving • in younger patients Almost 800 ASH abstracts in multiple myeloma • about 10x more than a decade ago understanding of pathbiology • of the malignant plasma cell and microenvironment ASH 2011: • nontransplant (elderly) regimens: longer follow-up • second generation novel agents • “multitargeted” strategies MM Survival Trends Patients > 65 years at Diagnosis* 1.0 1.0 0.9 0.9 Overall Surv vi al (proport io n) Overall Sur v vi al (proport o i n) Patients < 65 years at Diagnosis* 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 12 24 36 48 60 72 84 96 108 120 132 144 156 168 180 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 12 24 36 48 60 72 84 96 108 120 132 144 156 168 180 Time Since Diagnosis (months) Time Since Diagnosis (months) *Swedish Registry data. 1950 – 1959 1960 – 1969 1970 – 1979 1980 – 1989 1990 – 1999 2000 – 2005 Turesson I, et al. J Clin Oncol. 2009;28:830-834. Newly Diagnosed, Patients SCT Ineligible MPT1 N = 129 VMP2 N = 337 MPR3 N = 153 MPR-R4 N = 152 VTP5 N = 130 CR 16% 30% 11% 16% 27% > VGPR 29% Not reported 33% 32% 37% > PR 69% 71% 68% 77% 81% PFS 21.8 mo TTP: 24.0 mo 14 mo 31 mo 23 mo Median follow-up 31.8 mo 36.7 mo 25 mo 25 mo 22 mo MPT: melphalan, prednisone, thalidomide; VMP: bortezomib, melphalan, prednisone; MPR: melphalan, prednisone, lenalidomide; MPR-R: MPR with maintenance lenalidomide; VTP: bortezomib, thalidomide, prednisone. 1Palumbo A, et al. Blood. 2008;112:3107-3114; MV, et al. Blood. 2009;114(22). Abstract 3859; 3,4Palumbo A, et al. Blood. 2010;116(21). Abstract 622 and Abstract 566; 5Mateos MV, et al. Blood. 2009;114(22). Abstract 3. 2Mateos VISTA Final Analysis (Velcade) as Initial Standard Therapy in Multiple Myeloma= VISTA updated OS analysis of VISTA after 5 years median follow-up randomized, international, phase III clinical trial Newly Diagnosed/SCT ineligible VISTA Final Analysis Newly Diagnosed/SCT ineligible VISTA Final Analysis 5-year OS • VMP vs MP: 46.0% vs 34.4% • 13.3-month increase in OS OS benefit in most subgroups • sex, race, geographic region, β2-microglobulin level, and albumin level OS benefit not observed for high-risk cytogenetics • OS benefit initially observed in VMP arm diminished when patients received second-line therapy (included bortezomib in 60% of MP pts) Newly Diagnosed/SCT ineligible MPRR: Italian intergroup study MM-015 ASH 2011: 41 month f/u MM-015: MPR with or without maintenance lenalidomide, vs MP in upfront SCT ineligible pts Newly Diagnosed/SCT ineligible Italian Intergroup MM-015 PFS benefit to lenalidomide maintenance Landmark Analysis: PFS After Cycle 9 MPR-R vs Patients (%) 100 MPR 75 HR 0.314 Log rank P < 0.001 50 25 0 0 5 Newly Diagnosed/SCT ineligible 10 15 20 Time (months) 25 30 Palumbo A, et al. Blood. 2009;114(22). Abstract 613; Palumbo A, et al. European Hematology Association 15th Congress. 2010. Abstract 566. MM-015: Outcomes in Overall Population Continued lenalidomide significantly improves PFS vs placebo • PFS benefit extended through patient subgroups in landmark analysis ⁻ Age (65-75 vs > 75 yrs), response (PR vs ≥ VGPR), ISS stage (I/II vs III) • No effect on OS or TTP with maintenance lenalidomide Outcome MPR-R (n = 152) MPR (n = 153) MP (n = 154) Median PFS, mos HR vs MP P value vs MP 31 0.395 < .001 14 0.796 .135 13 4-yr OS, % HR vs MP P value vs MP 59 0.898 .579 58 1.089 .648 58 TTP HR vs MP 0.337 0.826 Palumbo A, et al. ASH 2011. Abstract 475. MM-015: Grade 4 Toxicities during induction and maintenance Adverse Events, %* Induction Therapy Maintenance Therapy MPR MP MPR-R MPR •Neutropenia 32 7 2 0 •Thrombocytopenia 7 4 4 3 •Anemia 2 2 3 1 •Febrile neutropenia 0 0 0 0 Grade 4 hematologic events Newly 1. é J etDiagnosed/SCT al. Br J Haematol. ineligible 1998;102:1115-1123. Palumbo A, et al. ASH 2011 Abstract 475 MM-015: Second Malignancies Second Malignancies, Incidence Rate/100 Patients/Yr Total invasive second primary malignancies Hematologic malignancies Solid tumors Nonmelanoma skin cancer Newly Diagnosed/SCT ineligible MPR-R (n = 150) MPR (n = 152) MP (n = 153) 3.04 2.57 0.98 1.75 1.54 0.24 1.26 1.28 0.74 0.50 1.29 1.50 1. é J et al. Br J Haematol. 1998;102:1115-1123. Palumbo A, et al. ASH 2011 Abstract 475 Relapsed / Refractory Disease Patients Relapsing and Refractory to Bortezomib and Thalidomide or Lenalidomide 100% 80% 60% 40% 20% 0% 0 12 24 Months 36 48 N Events (n) Median Overall Survival 291 173 9 months Event-Free Survival 291 222 5 months 60 Kumar, et al. Haematologica. 2010;95(suppl 2). Abstract 376. The Next Generation… 2nd generation immunomodulatory agents 2nd generation proteasome inhibitors HDAC Inhibitors Monoclonal antibodies Alkylating agents Other proteasome inhibitors Heat shock protein inhibitors PI3K / AKT inhibitor mTOR inhibitors Carfilzomib: second-generation proteasome inhibitor Administered IV • First 2 days of each week, for 3 weeks (repeated monthly) Active in heavily pretreated MM patients Mild neuropathy seen but uncommon (< 20%) • Severe neuropathy (grade 3-4): <2% • Toxicity ⁻ Myelosuppression, fatigue, URI/ PNA, infusion reactions ≈ 15% grade 3-4 anemia, thrombocytopenia, and neutropenia PX-171-003-A1: Siegel DS, et al. Blood. 2010;116(2). Abstract 985; PX-171-004 Stewart K, et al. Hematologica. 2010;95(S2). Abstract 1099; Wang ASH 2009 Abstract 302. Niesvizky R, et al. Blood. 2010;116(2). Abstract 619. Carfilzomib: Phase II Rel/Ref MM ASH 2011: Single-Agent Carfilfzomib, rel/ref MM (PX-171-004): Final results from the bortezomib-naive group n = 129 Treated for up to 12 cycles Data from 2 cohorts presented 1- Carfilzomib 20 mg/m2 (n=59) 2- Carfilzomib 20 mg/m2 for cycle 1, then (n=70) Rel/Ref MM to 27 mg/m2 for cycles 2-12 Vij R, Kaufman JL, Jakubowiak AJ, et al. Abstract 813 Carfilzomib phase II PX-171-004: Baseline characteristics Carfilzomib 20 mg/m2 (n = 59) Carfilzomib 20/27 mg/m2 (n = 70) 65 (38-82) 65.5 (45-85) 3.5 (0.7-24.4) 3.6 (0.7-12.2) 49 55 2 (1-4) 2 (1-4) Refractory to most recent therapy, % 66 64 Prior Stem cell transplantation (%) 80 67 Cyto or FISH = Unfavorable (%) 15 14 Characteristic Median age, yrs (range) Median yrs from diagnosis (range) Neuropathy, % Median previous treatments, n (range) Rel/Ref MM Vij R, Kaufman JL, Jakubowiak AJ, et al. Abstract 813 Carfilzomib phase II PX-171-004: Response Data Carfilzomib 20 mg/m2 (n = 59) Carfilzomib 20/27 mg/m2 (n = 67)* ORR, % 42 52 CR VGPR PR Median time to response, mos Median PFS, mos Median duration of f/u, mos 3 14 25 2 27 24 1.0 1.9 8.2 NR 23.2 13.8 Outcome Rel/Ref MM Vij R, Kaufman JL, Jakubowiak AJ, et al. Abstract 813 Carfilzomib phase II PX-171-004: Conclusions In bortezomib-naïve rel/ref MM pts, combined ORR 48% • Potential dose-response relationship No increase in neuropathy risk with carfilzomib in pts with history of, or pre-existing, neuropathy • PNP is ⁻ Mostly mild to moderate severity , not dose limiting Grade 3/4 adverse events in 80% of patients- primarily hematologic ⁻ Generally reversible AE’s led to treatment discontinuation in 16% of patients Rel/Ref MM Vij R, Kaufman JL, Jakubowiak AJ, et al. Abstract 813 ASH 2011: Phase 2 results Carfilzomib + len + dex Upfront, SCT-eligible Upfront, SCT-eligible Upfront, SCT-eligible Upfront, SCT-eligible Upfront, SCT-eligible Upfront, SCT-eligible MLN9708 Phase I Study: ASH 2011 MLN9708, PO proteasome inhibitor Phase I study relapsed/refractory MM (N = 56) ⁻ Dose-escalation phase (n = 26) ⁻ Expansion phase (n = 36; 6 from dose-escalation cohort) ⁻ 27% to 32% refractory to bortezomib on last previous therapy MLN9708 dosing ⁻ Starting 0.24 mg/m2, increased to 2.23 mg/m2 on Days 1, 4, 8, 11 of a 21-day cycle for up to 12 cycles • 46 patients evaluable for response Richardson PG, et al. ASH 2011. Abstract 301. Rel/Ref MM MLN9708 Phase I Study: Safety and Response MTD 2.0 mg/m2 • 32% of patients required dose reductions due to adverse events ⁻ Mainly thrombocytopenia, neutropenia, and rash ⁻ 9% of patients discontinued treatment due to adverse events Grade 3/4 adverse events: thrombocytopenia (34%), neutropenia (14%), fatigue (9%), rash (9%) • No grade 3 /4 neuropathy 15% (n = 7) patients achieved response • Durable disease control up to 15.9 mos • Majority (61%) of remaining patients reached SD, durable for up to 12.9 mos Richardson PG, et al. ASH 2011. Abstract 301. Rel/Ref MM MLN9708 + Len + Dex: Phase I/II Combination Open-label, multicenter, dose-escalation phase I/II trial • Primary endpoints: safety, MTD, recommended phase II dose ⁻ Secondary endpoints: MLN2238 pharmacokinetics, treatment response Previously untreated MM (n = 15 to date) Treatment: 28-day cycles for up to 12 mos ⁻ MLN9708: started at 1.68 mg/m2, increased in 33% increments based DLT ⁻ Dex: 40 mg/day on Days 1, 8, 15, 22 ⁻ Lenalidomide: 25 mg/day on Days 1-21 Berdeja JG, et al. ASH 2011. Abstract 479. Upfront, SCT-eligible MLN9708 + Len + Dex Phase I/II: outcomes Responses observed in all patients (N =15), generally in cycle 1 • CR (n = 4), VGPR (n = 5), and PR (n = 6) No DLT observed up to 2.23 mg/m2 MLN9708 • Recommended phase II dose: 2.23 mg/m2/wk Well tolerated • Grade 1 peripheral neuropathy (n = 3) • Grade 3: vomiting (n = 2), deep vein thrombosis (n = 2), anemia (n = 2), rash (n = 2) • Grade 4: thrombocytopenia (n = 1) Berdeja JG, et al. ASH 2011. Abstract 479. Upfront, SCT-eligible Final topic… Relapsed/novel agents: Multitargeted combinations Update on Multiple Myeloma clinicaloptions.com/oncology VANTAGE 088: Study Design International, multicenter, double-blind, randomized phase III trial[1] – Vorinostat: HDAC inhibitor active when combined with bortezomib in phase I and II trials[2-4] 21-day cycles Relapsed/ refractory MM patients with PD following most recent therapy (N = 637) 1-3 previous therapies; bortezomib sensitive Bortezomib 1.3 mg/m2 on Days 1, 4, 8, 11 + Vorinostat 400 mg/day on Days 1-14 (n = 317) Bortezomib 1.3 mg/m2 on Days 1, 4, 8, 11 + Placebo (n = 320) PD or unacceptable toxicity Primary endpoint: PFS Secondary endpoints: OS, TTP, ORR, safety 1. Dimopoulos MA, et al. ASH 2011. Abstract 811. 2. Weber D, et al. ASCO 2008. Abstract 871. 3. Badros A, et al. Clin Cancer Res. 2009;15:5250-5257. 4. Siegel DS, et al. ASH 2011. Abstract 480. Rel/Ref MM Update on Multiple Myeloma clinicaloptions.com/oncology VANTAGE 088: PFS, OS, and Response PFS significantly prolonged with addition of vorinostat to bortezomib – No difference in median OS (data not yet mature) Bortezomib + vorinostat (n = 315) Bortezomib + placebo (n = 320) PFS (IAC) Response Rate (%) Patients With PFS (%) 100 7.63 vs 6.83 mos HR: 0.774 (95% CI: 0.64-0.94; P = .01) 80 60 40 20 0 0 5 10 15 Mos 20 25 Dimopoulos MA, et al. ASH 2011. Abstract 811. 70 P < .0001 60 50 40 30 20 10 0 ORR CR Response (IAC) MR VGPR PR Response Type SD Rel/Ref MM Update on Multiple Myeloma clinicaloptions.com/oncology PANORAMA-2: Study Design Panobinostat: potent, investigational HDAC inhibitor – Combination with bortezomib active in relapsed/refractory MM – ORR: 80% (overall population); 50% (bortezomib-refractory subset)[1] Current study evaluated efficacy of panobinostat with bortezomib plus dexamethasone in relapsed bortezomib-refractory MM patients (N = 55)[2] Phase I: 8 x 3-wk cycles – Single-arm phase II trial – Primary endpoint: ORR Panobinostat 20 mg on Days 1, 3, 5, 8, 10, 12 + Bortezomib 1.3 mg/m2 on Days 1, 4, 8, 11 + Dexamethasone 20 mg on Days 1, 2, 4, 5, 8, 9, 11, 12 Phase II (for patients with clinical benefit after phase I): 6-wk cycles until PD Panobinostat 20 mg on Days 1, 3, 5, 8, 10, 12, 22, 24, 26, 29, 31, 33 + Bortezomib 1.3 mg/m2 on Days 1, 8, 22, 29 + Dexamethasone 20 mg on Days 1, 2, 8, 9, 22, 23, 29, 30 1. San Miguel J, et al. 2011 EHA. Abstract 0314. 2. Richardson PG, et al. ASH 2011. Abstract 814. Rel/Ref MM Update on Multiple Myeloma clinicaloptions.com/oncology PANORAMA-2: Response and Safety Responses were rapid, often within 1-2 cycles Response Rate, % Panobinostat + Bortezomib + Dexamethasone (n = 55) ORR (CR + nCR + PR) CR 0 nCR 4 PR 25 Clinical benefit (ORR + MR) MR VGPR 29 49 20 6 Most frequent grade 3/4 events: thrombocytopenia (53%), anemia (16%), neutropenia (12%) – Peripheral neuropathy (24%) was grade 3/4 in only 1 patient (2%) – Fatigue (63%) was grade 3/4 in 16%; generally manageable with dose reduction Richardson PG, et al. ASH 2011. Abstract 814. Rel/Ref MM Update on Multiple Myeloma clinicaloptions.com/oncology PANORAMA-2: Conclusions Combination of investigational HDAC inhibitor panobinostat with bortezomib active[1] – Effective even in this heavily pretreated, bortezomibrefractory MM patient set Treatment relatively well tolerated[1] – Grade 3/4 myelosuppression manageable with dose reduction or interruption – Infrequent grade 3/4 peripheral neuropathy Lower toxicity with this dose schedule (1 wk rest period between cycles) vs previously observed in phase I trial[2] 1. Richardson PG, et al. ASH 2011. Abstract 814. 2. San Miguel J, et al. 2011 EHA. Abstract 0314. Rel/Ref MM On the horizon Improving outcomes for lenalidomide/bortezomibrefractory patients maximizing clinical benefit • disease control using maintenance? drug holiday? Multitargeted combinations? Active clinical trials: • Novel agents, orally administered • MLN+rev+dex upfront • optimal ASCT regimen? CTN 0702: ⁻ tandem len maintenance ⁻ single len+bort+dex consolidation len maintenance ⁻ single len maintenance Acknowledgements Myeloma Program at OHSU: • • • • Emma Scott, MD (scottem@ohsu.edu) Anne Kratz, RN Richard Maziarz, MD (maziarzr@ohsu.edu) All other MD, RN, PA/NP, admin staff at OHSU Slides • Rachid Baz, MD (Moffitt Cancer Center, Tampa, FL) • Clinical Care Options (clinicaloptions.com) • educational concepts group (www.educationalconcepts.net) (Extra slides) (Extra slides) Consolidation after ASCT- already presented in Paris 2011… CALGB 100104 • OS benefit to len maintenance after ASCT (90 vs 83% OS at 28 months, p=.02) • TTP benefit 48 mo vs 31 mo • second malignancies higher (n=15 vs 6) IFM 2005- clear PFS benefit (42 vs 22 mo), second malignancies higher, study halted both: higher cumulative grade 3-4 PMN with maintenance, more 2nd malignancies… Update on Multiple Myeloma clinicaloptions.com/oncology QuiRedex: Study Design Multicenter, open-label, randomized phase III trial – Evaluated new treatment regimen for smoldering MM vs current standard of care Maintenance Induction Patients with high-risk smoldering MM 9 x 28-day cycles 28-day cycles Lenalidomide 25 mg/day on Days 1-21 + Dexamethasone 20 mg/day on Days 1-4, 12-15 Lenalidomide 10 mg/day on Days 1-21 (Low-dose dexamethasone added at time of biologic progression) 2 yrs (N = 126) No Treatment No Treatment Primary endpoint: TTP to symptomatic MM Secondary endpoints: response, duration of response, safety and tolerability, PFS, OS Mateos MV, et al. ASH 2011. Abstract 991. Update on Multiple Myeloma clinicaloptions.com/oncology QuiRedex: TTP to Symptomatic MM and OS Significant increase in TTP with vs without treatment Proportion of Patients Alive 1.0 Lenalidomide + dexamethasone No treatment 0.8 0.6 Median TTP Lenalidomide/dexamethasone: NR No treatment: 23 mos HR: 6.0 (95% CI: 2.9-12.6; P < .0001) Median follow-up: 32 mos (range: 12-49) 0.4 0.2 0 0 5 10 15 20 25 30 35 40 45 Mos From Inclusion Significantly prolonged OS with vs without treatment – Median 3-yr OS (from study inclusion): 93% vs 76%; P = .04 – Median 5-yr OS (from diagnosis): 94% vs 79%; P = .03 Mateos MV, et al. ASH 2011. Abstract 991. Update on Multiple Myeloma clinicaloptions.com/oncology QuiRedex: Safety 3 cases of second primary malignancies reported in treatment arm Adverse Event, % Lenalidomide + Dexamethasone (n = 57) No Treatment (n = 62) Grade 1/2 Grade 3 Grade 1/2 Anemia 28 2 -- Neutropenia 20 5 -- Thrombocytopenia 13 2 -- Asthenia 20 7 11 Constipation 18 -- 2 Diarrhea 24 2 4 Rash 33 4 -- Paresthesias 5 -- -- Tremor 13 -- 2 Infection 46 6 26 Deep vein thrombosis 5 -- Mateos MV, et al. ASH 2011. Abstract 991. Alternative Bortezomib Regimens Regimen N ORR CR Grade 1/2 PN > Grade 3 PN CyBorD Twice weekly btz Once weekly btz 33 30 88% 93% 39% 40% 64% 56% 6% 0% VMPT-VT Twice weekly btz Once weekly btz 63 190 86% 85% 35% 30% 29% 19% 14% 2% Btz: bortezomib; PN: peripheral neuropathy; CyBorD: cytarabine, bortezomib, dexamethasone; VMPT-VT: bortezomib, melphalan, prednisone, thalidomide followed by maintenance bortezomib and thalidomide. Reeder CB, et al. ASH Annual Meeting Abstracts. 2009;114(22):616; Palumbo A, et al. ASH Annual Meeting Abstracts. 2010;116(21):620. Bort- Alternative Modes of Administration IV Bortezomib N = 73 SC Bortezomib N = 145 P ORR after 8 cycles CR > VGPR 52% 12% 25% 52% 10% 25% NS NS NS Median TTP 1-year OS Any grade 3/4 AE PN Any grade > grade 3 9.4 months 77% 70% 10.4 months 73% 57% 0.39 NR NR 53% 16% 38% 6% 0.04 0.03 IV: intravenous; SC: subcutaneous; CR: complete response; VGPR: very good partial response; TTP: time to progression; OS: overall survival; AE: adverse event; PN: peripheral neuropathy. Moreau P, et al. Blood. 2010;116(21). Abstract 312.