checkpoint blockade in hematology and stem cell ... · hematology and stem cell transplantation ......
TRANSCRIPT
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©2015 MFMER | slide-1
Checkpoint Blockade in Hematology and Stem Cell
Transplantation
Saad S. Kenderian, MDAssistant Professor of Medicine and OncologyMayo Clinic College of Medicine
October 14, 2016
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NoneDisclosures
Checkpoint blockade use in leukemia, lymphoma, and myeloma
Off Label use
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Outline
- Overview of checkpoint blockade
- Activity and tolerability of checkpointblockade in hematological malignancies
- Checkpoint blockade after BMT
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What are immune checkpoints?
©2012 MFMER |
slide-4
Nirschl, et. al. Clin Cancer Res 2013;19, 4917-4924
Antigen specificity
CD28
immune priming
Anergy/death—occurs primarily during immune attack
Ipilimumab
Nivolumab, MK-3475 (pembrolizumab)
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Why should we block the immune checkpoints?
Keir ME. Annu Rev Immunol. 2008; 26:677-704Pardoll DM Nature Rev Cancer. 2012;12:252-64
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Regulation of T Cell Responses Via Multiple Co-Stimulatory and Inhibitory Interactions
T cell response to antigen is mediated by peptide-MHC recognized by TCR (first signal –specificity)
B7 family of membrane-bound ligands bind both co-stimulatory and inhibitory receptors (second co-stimulatory signal)
Pardoll DM Nature Rev Cancer 12, 252, 2012
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CTLA-4 vs. PD-1
Ribas, NEJM 2012
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Checkpoint blockade in solid tumors
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Treatment with Checkpoint blockade is practice changing in many solid tumors
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Unique Toxicities after checkpoint blockade
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©2015 MFMER | slide-11
Outline
- Overview of checkpoint blockade
- Activity and tolerability of checkpointblockade in hematological malignancies
- Checkpoint blockade after BMT
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Ipilimumab in non-Hodgkin lymphoma
• 18 patients with NHL:• Follicular 14 patients• DLBCL 3 patients• Mantle cell lymphoma 1 patient
• Most were advance stage
• Prior regimens: 2(1-4)
• Cohort 1: 3 mg/kg first dose, then 1 mg/kg monthly x 3 doses
• Cohort 2: 3 mg/kg monthly x 4 doses
Ansell et al. CCR 2009
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Signal of activity for Ipilimumab in non-Hodgkin lymphoma
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Colitis is the most common AE after Ipilimumab treatment in lymphoma
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Why Hodgkin lymphoma?
Ansell et al. NEJM 2015
1. 9p24.1 amplification leads to PDL1 over expression on RS cells
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Chen et al. Clinc Cancer Res 2012
Why Hodgkin lymphoma?2. EBV infection leads to PDL1 over expression on RS cells
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Nivolumab treatment results in major responses in Hodgkin Lymphoma
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Nivolumab treatment results in major responses in Hodgkin Lymphoma
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Nivolumab is well tolerated in Hodgkin Lymphoma
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Pembrolizumab in Hodgkin Lymphoma
• 31 heavily pretreated patients • All have failed prior brentuximab• Most have >5 prior therapies• Most (71%) failed prior ASCT• Most (97%) were of mixed cellulrity
Armand et al. JCO 2016
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Pembrolizumab treatment results in major responses in Hodgkin Lymphoma
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Pembrolizumab treatment results in major responses in Hodgkin Lymphoma
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Pembrolizumab treatment results in major responses in Hodgkin Lymphoma
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Pembrolizumab treatment is associated with expansion of T cells and NK cells
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• Phase II, multicenter• Nivolumab 3 mg/kg every 2 weeks till
progression or withdrawal• 80 patients• Median age = 37• Stage III or IV=86%• Prior therapy 4-7
Younes et al. Lancet Oncology 2016
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Nivolumab treatment results in major responses in Hodgkin Lymphoma
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Nivolumab treatment results in major responses in Hodgkin Lymphoma
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Nivolumab treatment results in major responses in Hodgkin Lymphoma
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©2015 MFMER | slide-29
Nivolumab treatment is well tolerated in Hodgkin Lymphoma
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Summary: Toxicities of PD1 blockade in Hodgkin Lymphoma• Fatigue 20%• Pneumonitis 10% • Hepatitis 10%• Pancreatitis 10%• SAE 20%• 1 death due to pneumonitis
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Lesokhin et al. JCO 2016
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Major responses in NHL, B & T cell lymphomaNo major responses in MM
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Major responses in NHL, B & T cell lymphomaNo major responses in MM
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Expected toxicity profile of nivolumab
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Pidilizumab combination with rituximab in follicular lymphoma
Westin et al. Lancet 2014
30 patients
Rituximab sensitive (prior CR or PR)
Measurable disease
Intermediate to high risk follicular lymphoma
Prior regimens (1-4)
Pidilizumab 3 mg/kg every 4 weeks for 4 infusions
Rituximab 375 mg/m2 weekly for 4 infusions
(starting 17 days post Pidilizumab)
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Checkpoint blockade in hematological malignancies: Improving response rates
Combination with chemotherapy
Combination with antibodies
Combination with small molecules
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©2015 MFMER | slide-37
Pidilizumab combination with rituximab result in major responses in follicular lymphoma
Westin et al. Lancet 2014
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Westin et al. Lancet 2014
Pidilizumab combination with rituximab in follicular lymphoma
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Westin et al. Lancet 2014
Evidence of immune activation after Pidilizumab combination with rituximab
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Combination of PD1 inhibitor with lemalidomide• Double hit lymphoma,
refractory to multiple lines• Combination of:
• Pembrolizumab q 3 wks• Lenalidomide 15 mg daily
• CR after 3 cycles
Chan et al. Ann Hematol 2016
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©2015 MFMER | slide-41
Outline
- Overview of checkpoint blockade
- Activity and tolerability of checkpointblockade in hematological malignancies
- Checkpoint blockade after BMT
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©2015 MFMER | slide-42
PD1 Blockade after autologous stem cell transplantation
Target minimal residual disease
Armand et al. JCO 2013
Immune reconstitution after autologous transplantation
Rationale:
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PD1 Blockade after autologous stem cell transplantation
• 66 patients:• De-novo DLBCL: 49 patients• PMBCL: 6 patients• Transformed low grade FL: 20 patients
High dose chemo ASCT Pidilizumab
• Most have more than 2 prior regimens
• Most had high risk disease
• Status after transplantation:• CR: 50%• Non-CR: 50%
Armand et al. JCO 2013
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Armand et al. JCO 2013
PFS at 18 months: 72%PFS at 18 months is historic controls: 52%
Response rates in patients with PET+ disease: 51%
PD1 Blockade after autologous stem cell transplantation
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©2015 MFMER | slide-45
PD1 Blockade after autologous stem cell transplantation
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©2015 MFMER | slide-46
PD1 Blockade after autologous stem cell transplantation
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©2015 MFMER | slide-47
PD1 Blockade after autologous stem cell transplantation
Stimulate graft versus leukemia effect
Armand et al. JCO 2013
Worsening or activation of graft versus host effect
Rationale:
Risk:
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PD1 Blockade after allogeneic stem cell transplantation
• 29 patients:• HL: 14 patients• MM: 6 patients• Others (AML, CML, CLL, NHL): 9 patients
Allogeneic HSCT relapse ipilimumab
• All relapsed after allogeneic HSCT
• Most had RIC (80%)
Bashey et al. JCO 2013
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PD1 Blockade after allogeneic stem cell transplantation
• GVHD:• Three patients developed limited cGVHD• One patient developed mild acute GHVD
• Toxicities:• Grade III or IV Pneumonitis: 10%• Grade III or IV Hepatitis: 5%• Grade III arthritis: 5%
• Responses:• 2 patients had CR• One patient had PR
Bashey et al. JCO 2013
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©2015 MFMER | slide-50
PD1 Blockade after allogeneic stem cell transplantation
Bashey et al. JCO 2013
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Is PD1 blockade safe after allogeneic transplantation?
• 22 year old female
• Multiply relapsed HL
• Status post allogeneic transplantation
• Post-transplant relapse
• Treated with nivolumab ~ 1 year after transplant
Chad et al. Pediatric blood cancer 2016
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©2015 MFMER | slide-52
Is PD1 blockade safe after allogeneic transplantation?
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AcknowledgmentsPenn TRP/CCICarl JuneSaar GillDavid PorterOlga SheshtovaMarco RuellaMiriam KimMichael Klichinsky
Mayo HematologyTait ShanafeltNeil KayStephen Russell Greg NowakowaskiAlex Wolanshyj
Mayo BMTMark LitzowWilliam HoganMrinal PatnaikShahrukh Hashmi
Hem LeadershipMartha LacyDennis GastineauThomas WitzigAngela Dispenzieri
CIMKeith StewartScott Beck
ImmunologyDiane JelinekDan BilladeeauLarry Pease
Predolin Foundation
Acknowledgments
ASBMT NP/PABrenda FryeAmy Witter