The document discusses immunotherapy and the role of pathologists in assessing tumor samples. It describes how certain tumors express PD-L1 antigens that can be recognized by the immune system, but the tumors also engage immune checkpoint pathways like PD-1 and CTLA-4 to evade the immune response. Immunotherapy drugs target these checkpoint pathways to enhance the immune response. The document outlines the FDA-approved PD-L1 immunohistochemistry assays and biomarkers used to identify cancer patients most likely to respond to immune checkpoint inhibitors for various cancer types including NSCLC, melanoma, bladder cancer, and colorectal cancer.
How can immunotherapy be used to treat metastatic breast cancer? Ian Krop, MD, PhD, discusses the latest research and treatment options.
This presentation was originally given as part of the 2015 Metastatic Breast Cancer Forum, held on October 17 and hosted by the Susan F. Smith Center for Women's Cancers at Dana-Farber Cancer Institute in Boston, Mass.
For more information, visit www.susanfsmith.org
Microsatellite instability testing is an important part in diagnostics in Metastatic cancer settings after the FDA has given approval for tissue agnostic indications in almost all solid cancers. MSI by PCR and MMR status by IHC is also helpful for evaluation of genetic risk in Colon and Endometrial cancers
Tried to summarise all landmark trials in carcinoma breast in radiation oncology,medical oncology as well in surgical oncology.
References taken from Devita Book,Breast Disease book from Springer,journals like NEJM,JAMA,LANCET,ANNL ONCOLOGY etc,internet,Perez book,Practical Clinical Oncology by Hanna etc textbooks.
Thanks.
Types of immunotherapy
Oncology
cancer vaccines
adoptive T cell transfer
oncolytic viruses
monoclonal antibodies
cytokine
treatment of cancer with immunotherapy
Robert Anders, MD, PhD, Julie R. Brahmer, MD, MSc, and Christopher D. Gocke, MD, prepared useful Practice Aids pertaining to immunotherapy and biomarker testing for this CME/MOC/CC activity titled "Keeping Up With Advances in Cancer Immunotherapy and Biomarker Testing: Implications for Pathologists at the Forefront of the Emerging Precision Immuno-Oncology Era." For the full presentation, monograph, complete CME/MOC/CC information, and to apply for credit, please visit us at http://bit.ly/2L7zlSy. CME/MOC/CC credit will be available until May 2, 2020.
How can immunotherapy be used to treat metastatic breast cancer? Ian Krop, MD, PhD, discusses the latest research and treatment options.
This presentation was originally given as part of the 2015 Metastatic Breast Cancer Forum, held on October 17 and hosted by the Susan F. Smith Center for Women's Cancers at Dana-Farber Cancer Institute in Boston, Mass.
For more information, visit www.susanfsmith.org
Microsatellite instability testing is an important part in diagnostics in Metastatic cancer settings after the FDA has given approval for tissue agnostic indications in almost all solid cancers. MSI by PCR and MMR status by IHC is also helpful for evaluation of genetic risk in Colon and Endometrial cancers
Tried to summarise all landmark trials in carcinoma breast in radiation oncology,medical oncology as well in surgical oncology.
References taken from Devita Book,Breast Disease book from Springer,journals like NEJM,JAMA,LANCET,ANNL ONCOLOGY etc,internet,Perez book,Practical Clinical Oncology by Hanna etc textbooks.
Thanks.
Types of immunotherapy
Oncology
cancer vaccines
adoptive T cell transfer
oncolytic viruses
monoclonal antibodies
cytokine
treatment of cancer with immunotherapy
Robert Anders, MD, PhD, Julie R. Brahmer, MD, MSc, and Christopher D. Gocke, MD, prepared useful Practice Aids pertaining to immunotherapy and biomarker testing for this CME/MOC/CC activity titled "Keeping Up With Advances in Cancer Immunotherapy and Biomarker Testing: Implications for Pathologists at the Forefront of the Emerging Precision Immuno-Oncology Era." For the full presentation, monograph, complete CME/MOC/CC information, and to apply for credit, please visit us at http://bit.ly/2L7zlSy. CME/MOC/CC credit will be available until May 2, 2020.
Co-Chairs, Nasser Altorki, MD, and Jonathan D. Spicer, MD, PhD, FRCSC, prepared useful Practice Aids pertaining to NSCLC for this CME/MOC activity titled “Can the Addition of Immunotherapy to Multimodal Management of Stage I-III NSCLC Help Break the Stalled Cycle of Poor Outcomes?” For the full presentation, downloadable Practice Aids, and complete CME/MOC information, and to apply for credit, please visit us at https://bit.ly/3m1OV2m. CME/MOC credit will be available until February 27, 2023.
Chair, Suresh S. Ramalingam, MD, FACP, FASCO, Arjun Balar, MD, Yelena Janjigian, MD, and Kurt A. Schalper, MD, PhD, prepared useful Practice Aids pertaining to PD-L1 expression as a cancer immunotherapy biomarker for this CME/MOC/CC activity titled “Revisiting PD-L1 as an Immunotherapy Biomarker Across the Cancer Spectrum: Current and Emerging Standards of Testing, Scoring, and Assay Interpretation.” For the full presentation, downloadable Practice Aids, and complete CME/MOC/CC information, and to apply for credit, please visit us at http://bit.ly/3t8iyRk. CME/MOC/CC credit will be available until May 10, 2022.
Professor Peter Schmid, FRCP, MD, PhD, Leisha A. Emens, MD, PhD, and Heather L. McArthur, MD, MPH, prepared useful practice aids pertaining to the role of immunotherapy in triple-negative breast cancer for this CME/MOC/CNE activity titled, "On the Cusp of the Era of Immuno-Oncology in Triple-Negative Breast Cancer: Rational Strategies to Make the Most of Immunotherapies and Other Effective Treatment Modalities Throughout the Disease Continuum." For the full presentation, monograph, complete CME/MOC/CNE information, and to apply for credit, please visit us at http://bit.ly/34aGu95. CME/MOC/CNE credit will be available until December 29, 2020.
MANAGEMENT OF ATRIOVENTRICULAR CONDUCTION BLOCK.pdfJim Jacob Roy
Cardiac conduction defects can occur due to various causes.
Atrioventricular conduction blocks ( AV blocks ) are classified into 3 types.
This document describes the acute management of AV block.
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Are you curious about what’s new in cervical cancer research or unsure what the findings mean? Join Dr. Emily Ko, a gynecologic oncologist at Penn Medicine, to learn about the latest updates from the Society of Gynecologic Oncology (SGO) 2024 Annual Meeting on Women’s Cancer. Dr. Ko will discuss what the research presented at the conference means for you and answer your questions about the new developments.
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Explore natural remedies for syphilis treatment in Singapore. Discover alternative therapies, herbal remedies, and lifestyle changes that may complement conventional treatments. Learn about holistic approaches to managing syphilis symptoms and supporting overall health.
New Directions in Targeted Therapeutic Approaches for Older Adults With Mantl...i3 Health
i3 Health is pleased to make the speaker slides from this activity available for use as a non-accredited self-study or teaching resource.
This slide deck presented by Dr. Kami Maddocks, Professor-Clinical in the Division of Hematology and
Associate Division Director for Ambulatory Operations
The Ohio State University Comprehensive Cancer Center, will provide insight into new directions in targeted therapeutic approaches for older adults with mantle cell lymphoma.
STATEMENT OF NEED
Mantle cell lymphoma (MCL) is a rare, aggressive B-cell non-Hodgkin lymphoma (NHL) accounting for 5% to 7% of all lymphomas. Its prognosis ranges from indolent disease that does not require treatment for years to very aggressive disease, which is associated with poor survival (Silkenstedt et al, 2021). Typically, MCL is diagnosed at advanced stage and in older patients who cannot tolerate intensive therapy (NCCN, 2022). Although recent advances have slightly increased remission rates, recurrence and relapse remain very common, leading to a median overall survival between 3 and 6 years (LLS, 2021). Though there are several effective options, progress is still needed towards establishing an accepted frontline approach for MCL (Castellino et al, 2022). Treatment selection and management of MCL are complicated by the heterogeneity of prognosis, advanced age and comorbidities of patients, and lack of an established standard approach for treatment, making it vital that clinicians be familiar with the latest research and advances in this area. In this activity chaired by Michael Wang, MD, Professor in the Department of Lymphoma & Myeloma at MD Anderson Cancer Center, expert faculty will discuss prognostic factors informing treatment, the promising results of recent trials in new therapeutic approaches, and the implications of treatment resistance in therapeutic selection for MCL.
Target Audience
Hematology/oncology fellows, attending faculty, and other health care professionals involved in the treatment of patients with mantle cell lymphoma (MCL).
Learning Objectives
1.) Identify clinical and biological prognostic factors that can guide treatment decision making for older adults with MCL
2.) Evaluate emerging data on targeted therapeutic approaches for treatment-naive and relapsed/refractory MCL and their applicability to older adults
3.) Assess mechanisms of resistance to targeted therapies for MCL and their implications for treatment selection
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2. IMMUNE RESPONSE TO CANCER
• Paul Ehrlich first conceived the idea that tumor cells can be
recognized as “foreign” and eliminated by the immune system
4. • Transformed cells of tumors express antigens, called tumor-associated
antigens (TAAs)
• The immune system recognizes those antigens as ‘‘not self’’ and mounts
an immune response against the tumor cells
5. Tumour microenvironment
• 3 key cells involved in the immune response:
(1) ANTIGEN-PRESENTING CELLS, such as dendritic cells (DCs),
which identify and uptake foreign antigens and present them to
T cells;
(2) T LYMPHOCYTES, which become activated by antigen-
presenting cells to recognize and destroy the cells containing
foreign TAAs; and
(3) B LYMPHOCYTES, which produce antibodies specific to TAAs.
• Other immunomodulatory cells include T regulatory cells,
natural killer cells, macrophages, and myeloid-derived
suppressor cells.
• IMMUNE CELLS, + STROMAL CELLS = TUMOR
MICROENVIRONMENT immune survellience
11. • In addition to T cells, PD-1 receptor is also expressed on the
surface of macrophages and B cells;
• Its 2 ligands-PD-L1 and PD-L2 are expressed by many tumor
and inflammatory cells
• PD-L1 expression correlates with poor clinical outcome but
also with the likelihood of response to targeted immune-
checkpoint inhibition
12.
13. The importance of this science has recently
been recognized by awarding 2018 NOBEL PRIZE
IN MEDICINE to JAMES ALLISON and TASUKU
HONJO for their research on CTLA-4 and PD-1
14. Programmed Death-Ligand 1 Assays and
Inhibitors
CRITERIA PEMBROLIZUMAB NIVOLUMAB DURVALUMAB ATEZOLIZUMAB
TARGET PD-1 PD-1 PD-L1 PD-L1
PDL1-IHC
ASSAY
DAKO22C3 Dako 28-8 Ventana SP263 Ventana SP142
CELL TYPE
SCORED
NSCLC- TC
UC-TC/IC
CRC-TC/IC
NSCLC-TC NSCLC-TC NSCLC-TC/IC,
UC-IC
Cutoff
criteria
(NSCLC)
TC = 1%–49%;
TC >50%
TC> 1%;
TC > 5%;
TC > 10%
TC > 25% TC or IC > 1%;
TC or IC > 5%;
TC > 50% or
IC > 10%
Cutoff
criteria (UC)
> Any TC or stromal
cell
NA NA IC 10%; IC 5%;
IC 1%
Cutoff
criteria
(MSI-H CRC
TC < 5%; TC > 5%;
IC—any positivity (%)
NA NA NA
15. UNIQUE IHC ASSAY FOE EACH IMMUNE
CHECKPOINT INHIBITORS
• Four PD-L1 IHC assays registered with the FDA, using four
different PD-L1 antibodies (22C3, 28-8, SP263, SP142), on two
different IHC platforms (Dako and Ventana)
• Definition of positive varies which biomarker assay is used
and for which malignancy
16. PDL1 expression by IHC
• Tumor proportion score (TPS) : ratio of the number of PD-L1–
expressing tumor cells to that of all tumor cells NO ROLE
AS PREDICTIVE INDICATOR EXCEPT NSCLC for pembrolizumab
• Mononuclear immune cell density score (MIDS) : ratio of the
number of PD-L1–expressing immune cells to that of all tumor
cells
• COMBINED POSITIVE SCORE (CPS) :the ratio of the number of
all PD-L1–expressing cells (tumor cells, lymphocytes,
macrophages) to the number of all tumor cells
17. COMBINED POSITIVE SCORE (CPS)
A minimum of 100 viable tumor cells must be present in the PD-L1–stained slide
(sectioned tumor biopsy or resection tissue) for the specimen to be considered
adequate for evaluation.
Tumor cells must show partial or complete membrane staining (≥1+) to be counted
as “stained,” whereas immune cells are counted if there is any staining
18. Gastric cancer specimens stained with PD-L1 immunohistochemical 22C3 pharmDx
A, Specimen with CPS < 1.
B, Specimen with CPS > 1
19. CUTANEOUS MELANOMA: NCCN GUIDELINES
• In March 2011, ipilimumab, an anti-CTLA-4, was the first ICI to
receive the US FDA approval for the treatment of
unresectable stage III and stage IV melanoma in patients who
have received prior therapy
• Now trials have shown adding pembrolizumab and nivolumab
improves response and PFS compared with chemotherapy or
implimumab immunotherapy alone
20. PD-L1 expression in melanoma: effect on treatment
• Whether PD-L1 expression marker can be predictive factor for
immunotherapy ( response to Anti PDL1) in melanoma ?
• Across trials, response rate, PFS and OS for anti PDL1
improves with increased PDL1 expression
• However, patients with little or no PDL1 expression detected
in their tumor samples also experienced durable responses
• For nivolumab, PDL1 expression alone is insufficient
biomarker to predict OS
• None of the analyses were able to identify PDL1 expression
threshold for selection of anti PDL1 agent versus other
treatment options.
22. PD-1/PD-L1 IMMUNOTHERAPY IN
NSCLC : NCCN GUIDELINES
• Assessment of PD-L1 expression by IHC
before first line treatment in all patients with
metastatic NSCLC after assessing for driver
mutations EGFR, ALK
23. PD-1/PD-L1 IMMUNOTHERAPY IN
NSCLC : NCCN GUIDELINES
• For the use of immunotherapy in metastatic NSCLC AND
NEGATIVE DRIVER MUTATIONS ( EGFR/ALK/ROS and BRAF
V600E)
1) Patients with PD-L1 EXPRESSION > 50% are recommended to
receive single agent PEMBROLIZUMAB regardless of histology
as first line treatment
2) Single agent pembrolizumab can also be used as first line
therapy in patients of metastatic carcinoma and PDL1 levels
of 1-49%, regardless of histology
3) Combination of pembrolizumab and chemotherapy as first
line therapy regardless of PDL1 expression
24. • For subsequent therapy options, pembrolizumab is
recommended as therapy option in patients with metastatic
NSCLC and PDL1 expression >1%
• Nivolumab or atezolimumab can be used as subsequent
therapy regardless of PDL1 levels
25. • Among patients with a PD-L1 proportion score of at
least 50% the response rate was 45.2%; median
progression-free survival (PFS) was 6.3 months (95%
CI, 2.9 to 12.5) for all patients, 6.1 months (95% CI,
2.1 to 12.5) for previously treated patients, and 12.5
months (95% CI, 2.4 to 12.5) for previously untreated
patients
26. IMMUNOTHERAPY IN UROTHELIAL
CARCINOMA
• Pembrolizumab, atezolimumab, nivolumab, duravalumab are
prefferd second line therapy options after platunum based
therapy in metastatic cancers
• Pembrolizumab can also used as first line in patients with
metastatic disease
1) Patients are not eligible for cisplatin based chemotherapy and
whose tumour express PD-L1 as measured by combined positive
score of atleast 10
2) Patients are not eligible for any platinum based chemotherapy
regardless of PD-L1 status
27. • Atezolizumab can also used as first line in patients with
metastatic disease
1) Patients are not eligible for cisplatin based chemotherapy and
whose tumour express PD-L1 stained tumour infiltrating
immune cells covering atleast 5% of the tumour area
2) Patients are not eligible for any platinum based chemotherapy
regardless of PD-L1 status
28. PD-1/PD-L1 IMMUNOTHERAPY IN
MSI-H CRC
• MSI-H CRC ( microsatellite instable- coclorectal carcinoma)
have an active immune microenvironment infiltrated by
cytotoxic T lymphocytes and activated Th1 cells
• Greater tumor-infiltrating lymphocyte (TIL) densities
compared with MSS tumors because of the presence of
numerous neoantigens (mutated proteins) created by the high
mutational load, typically between 10 and 50 times that of
DNA repair-sufficient (MSS) tumors
29. • Despite such a ‘‘hostile’’ microenvironment full of immune
cells, MSI-H tumor cells are not eliminated by the immune
system because of the cancer-specific upregulation of
inhibitory checkpoints, including PD-1, CTLA4, LAG3, and
indoleamine 2,3-dioxygenase (IDO)
• Potentially good candidates for checkpoint immunotherapy
• Approximately 3-5% of stage IV colorectal cancers are MSI-H
30. • What is strikingly different in MSI-H CRC from
melanoma, renal cancer, or lung cancer is that there
is little PD-L1 expressed by the tumor cells; rather,
the PD-L1 is expressed predominantly by infiltrating
immune cells, T cells, and myeloid cells
31. • FDA approval of anti-PD-1 drug pembrolizumab for the
treatment of metastatic/ refractory MSI-H CRC assessed
expression of CD8 and PD-L1 with a cutoff of 5% for PD-L1 of
tumor cells and assessed the percentage of PD-L1 TILs and
macrophages within the tumor and at the invasive fronts
• The expression of CD8 and PD-L1 was not significantly
associated with PFS or overall survival but was predictive of
response to pembrolizumab therapy
32. PD-L1 expression in microsatellite instability–
high (MSI-H) colorectal cancer (CRC)
Strong membranous expression along
tumour-stromal surface diffuse membranous expression in tumour
33.
34. • All 6 patients (100%) with sporadic MSI-H CRC had an
objective response, whereas only 3 of 11 patients (27%) with
germline MSI-H CRC (Lynch syndrome) had treatment
responses
• Related to the differing pathogeneses (eg, methylation
patterns
35. New developments
• September 2017, FDA approval of pembrolizumab for
treatment of patients with gastric or gastroesophageal
junction adenocarcinoma that expresses PD-L1
36. New developments
• On March 8, 2019, the Food and Drug Administration granted
approval to atezolizumab in combination with paclitaxel
protein-bound for adult patients with unresectable locally
advanced or metastatic triple-negative breast cancer (TNBC)
whose tumors express PD-L1 (PD-L1 stained tumor-infiltrating
immune cells [IC] of any intensity covering ≥ 1% of the tumor
area)
• VENTANA PD-L1 (SP142) Assay selecting TNBC patients for
atezolizumab
37. New developments
• On June 10, 2019, the Food and Drug Administration
approved pembrolizumab for the first-line treatment of
patients with metastatic or unresectable recurrent head and
neck squamous cell carcinoma (HNSCC)
• Tumors express PD-L1 (Combined Positive Score [CPS] ≥1) as
determined by an FDA-approved test (PD-L1 IHC 22C3
pharmDx kit)
38. Programmed Death-Ligand 1 Assays and
Inhibitors
CRITERIA PEMBROLIZUMAB NIVOLUMAB DURVALUMAB ATEZOLIZUMAB
TARGET PD-1 PD-1 PD-L1 PD-L1
PDL1-IHC
ASSAY
DAKO22C3 Dako 28-8 Ventana SP263 Ventana SP142
CELL TYPE
SCORED
NSCLC- TC
UC-TC/IC
CRC-TC/IC
NSCLC-TC NSCLC-TC NSCLC-TC/IC,
UC-IC
Cutoff
criteria
(NSCLC)
TC = 1%–49%;
TC >50%
TC> 1%;
TC > 5%;
TC > 10%
TC > 25% TC or IC > 1%;
TC or IC > 5%;
TC > 50% or
IC > 10%
Cutoff
criteria (UC)
> Any TC or stromal
cell
NA NA IC 10%; IC 5%;
IC 1%
Cutoff
criteria
(MSI-H CRC
TC < 5%; TC > 5%;
IC—any positivity (%)
NA NA NA
39. Take home message
• The FDA approved PD-L1 immunohistochemistry (IHC) as a
companion or complementary diagnostic tool for PD-1/PD-L1
inhibitor therapy in patients with non-small cell lung cancer or
urinary bladder cancer
• However, currently, PD-1/PD-L1 inhibitors are used in the
treatment of melanoma regardless of the specific PD-L1
expression in patients
• The absence of PDL1 expression was not an absolute
indicator of the lack of benefit from immunotherapy
40. • Pathologists have to cope with the rapid expansion of
immunotherapies, new novel targets, and therapeutic
strategies.
• The surgical pathologists’ practice must change from the
traditional morphology-based routine to a fully clinical-
oriented interaction with medical oncologists, surgeons, and
radiotherapists, that is, to become multidisciplinary