News
Media
Conferences
Events
Partners
Publications
Resources
Biomarker Consortium
Subscribe

Opinion|Videos|December 22, 2025

Prevalence of KIT D816V Mutations in Non-Advanced Systemic Mastocytosis

Author(s)Lindsay Rein, MD, Frederick Lansigan, MD

Lindsay Rein, MD, and Frederick Lansigan, MD, delve into the frequency of KIT D816V mutations in non-advanced systemic mastocytosis.

Episodes in this series

EP. 1 Current Treatment Strategies for Non-Advanced Systemic Mastocytosis

EP. 1 Current Treatment Strategies for Non-Advanced Systemic Mastocytosis

EP. 2 Prevalence of KIT D816V Mutations in Non-Advanced Systemic Mastocytosis

EP. 2 Prevalence of KIT D816V Mutations in Non-Advanced Systemic Mastocytosis

EP. 3 Comparing Mechanisms of Action for Bezuclastinib and Avapritinib in Non-Advanced Systemic Mastocytosis

EP. 3 Comparing Mechanisms of Action for Bezuclastinib and Avapritinib in Non-Advanced Systemic Mastocytosis

EP. 4 SUMMIT Trial: Key Data for Bezuclastinib in Non-Advanced Systemic Mastocytosis

EP. 4 SUMMIT Trial: Key Data for Bezuclastinib in Non-Advanced Systemic Mastocytosis

EP. 5 Additional SUMMIT Data for Bezuclastinib in Non-Advanced Systemic Mastocytosis

EP. 5 Additional SUMMIT Data for Bezuclastinib in Non-Advanced Systemic Mastocytosis

EP. 6 Other Key Updates and Ongoing Research in Non-Advanced Systemic Mastocytosis From ASH 2025

EP. 6 Other Key Updates and Ongoing Research in Non-Advanced Systemic Mastocytosis From ASH 2025

Lindsay Rein, MD, and Frederick Lansigan, MD, explore the prevalence and clinical significance of KIT D816V mutations in non-advanced systemic mastocytosis. They explain how mutation status influences diagnosis, prognostication, and emerging treatment strategies. Rein and Lansigan also discuss testing considerations and how molecular insights are reshaping disease characterization.

Newsletter

Stay up to date on the most recent and practice-changing oncology data

Related Content

RAPNO Criteria and MRI Assessment in PLGG: Recommendations vs. Real-World Practice

ByMohamed Abdelbaki, MD,Susan N. Chi, MD,Murali Chintagumpala, MD ,Ashley Margol, MD, MS

May 11th 2026

Experts featured in this series.

Expanding ctDNA Applications to RCC and Germ Cell Tumors

ByPooja Ghatalia, M.D. ,Steven Seyedin, M.D. ,Arnab Basu, M.D. ,Jean Hoffmann-Censits, MD ,Noah Richardson, MD

May 11th 2026

Renal Cell Carcinoma: Real-World Factors in First-Line Treatment Selection

ByElizabeth R. Plimack, MD, MS, FASCO,Sundhar Ramalingam, MD,Yasser Ged, MD

May 11th 2026

Renal Cell Carcinoma: Practical Treatment Selection Across Risk Groups

ByElizabeth R. Plimack, MD, MS, FASCO,Sundhar Ramalingam, MD,Yasser Ged, MD

May 11th 2026

Institutional Perspectives on Treatment Thresholds in PLGG

ByMohamed Abdelbaki, MD,Susan N. Chi, MD,Murali Chintagumpala, MD ,Ashley Margol, MD, MS

May 11th 2026

Latest CME

Community Practice Connections™: Empowering Interventional Radiologists in the Emerging Era of Oncolytic Immunotherapies for Melanoma

Community Practice Connections™: Empowering Interventional Radiologists in the Emerging Era of Oncolytic Immunotherapies for Melanoma

Yana G. Najjar, MD; Douglas B. Johnson, MD, MSCI; Rahul A. Sheth, MD, FSIR

Community Oncology Connections™: Beyond Primary End Points – Digging Into Randomized and Real-World Data to Guide Challenging Treatment Decisions in HR+/HER2− Metastatic Breast Cancer | Empire State Hematology & Oncology Society

Community Oncology Connections™: Beyond Primary End Points – Digging Into Randomized and Real-World Data to Guide Challenging Treatment Decisions in HR+/HER2− Metastatic Breast Cancer | Empire State Hematology & Oncology Society

Seth A. Wander, MD, PhD; Girish Kunapareddy, MD

Arkansas Association of Cancer Professionals

Arkansas Association of Cancer Professionals

2 Sessions are Available!

Community Oncology Connections™: Beyond Primary End Points – Digging Into Randomized and Real-World Data to Guide Challenging Treatment Decisions in HR+/HER2− Metastatic Breast Cancer | South Carolina Oncology Society

Community Oncology Connections™: Beyond Primary End Points – Digging Into Randomized and Real-World Data to Guide Challenging Treatment Decisions in HR+/HER2− Metastatic Breast Cancer | South Carolina Oncology Society

Seth A. Wander, MD, PhD; Kit Lu, MD

19th Annual New York GU Cancers Congress®

19th Annual New York GU Cancers Congress®

Maha Hussain, MD, FACP, FASCO; Daniel P. Petrylak, MD

Go to PER in Chicago

In-Person + Virtual Event

Go to PER in Chicago

May 29-31, 2026

Community Oncology Connections™: Beyond Primary End Points – Digging Into Randomized and Real-World Data to Guide Challenging Treatment Decisions in HR+/HER2− Metastatic Breast Cancer | Tennessee Oncology Practice Society

Community Oncology Connections™: Beyond Primary End Points – Digging Into Randomized and Real-World Data to Guide Challenging Treatment Decisions in HR+/HER2− Metastatic Breast Cancer | Tennessee Oncology Practice Society

Seth A. Wander, MD, PhD; Kamel Abou Hussein, MD

Iowa Oncology Society

Iowa Oncology Society

1 Session is Available!

Kansas Society of Clinical Oncology

Kansas Society of Clinical Oncology

1 Session is Available!

A Case-Guided Discussion on Managing Immune Thrombocytopenic Purpura (ITP)

A Case-Guided Discussion on Managing Immune Thrombocytopenic Purpura (ITP)

Cindy Neunert, MD, MSCS; Hanny Al-Samkari, MD; Joseph Shatzel, MD, MCR

Louisiana Oncology Society

Louisiana Oncology Society

1 Session is Available!

Missouri Oncology Society

Missouri Oncology Society

1 Session is Available!

New Mexico Society of Clinical Oncology

New Mexico Society of Clinical Oncology

1 Session is Available!

Medical Crossfire®: Precision Medicine in Glioma Treatment — Integration of Molecular Profiling to Inform Targeted Therapies

Medical Crossfire®: Precision Medicine in Glioma Treatment — Integration of Molecular Profiling to Inform Targeted Therapies

Vinay K. Puduvalli, MD; Manmeet Ahluwalia, MD, MBA; Stephen J. Bagley, MD, MSCE; Angela Waanders, MD, MPH, MS

Evolving Treatment Strategies in Pancreatic Cancer: Current Standards, Emerging Targets, and the Role of Molecular Testing

Evolving Treatment Strategies in Pancreatic Cancer: Current Standards, Emerging Targets, and the Role of Molecular Testing

Eileen M. O’Reilly, MD; E. Gabriela Chiorean, MD, FASCO; Michael J. Pishvaian, MD, PhD; Brian Wolpin, MD, MPH

Medical Crossfire®: Expert Perspectives on Targeting c-Met Overexpression and 𝘔𝘌𝘛 Genomic Alterations in NSCLC – Unveiling the Complexities of 𝘔𝘌𝘛 Dysregulation

Medical Crossfire®: Expert Perspectives on Targeting c-Met Overexpression and 𝘔𝘌𝘛 Genomic Alterations in NSCLC – Unveiling the Complexities of 𝘔𝘌𝘛 Dysregulation

Rebecca Heist, MD, MPH; Alex A. Adjei, MD, PhD, FACP; Sandip Patel, MD, FASCO; Jeremy Segal, MD, PhD

GI Tumor Board—Applying Recent Advances in Biomarker Testing and Treatment in Metastatic Colorectal Cancer

GI Tumor Board—Applying Recent Advances in Biomarker Testing and Treatment in Metastatic Colorectal Cancer

John H. Strickler, MD; Stacey A. Cohen, MD; Aparna Parikh, MD; Kanwal P.S. Raghav, MBBS, MD

Medical Crossfire®: Harnessing the Power of Modern Therapies in Newly Diagnosed Multiple Myeloma

Medical Crossfire®: Harnessing the Power of Modern Therapies in Newly Diagnosed Multiple Myeloma

C. Ola Landgren, MD, PhD; Mohamad Mohty, MD, PhD; Surbhi Sidana, MD

Cases & Conversations™: Transforming AML Care—Precision Strategies, Evolving Therapies, and Clinical Insights

Cases & Conversations™: Transforming AML Care—Precision Strategies, Evolving Therapies, and Clinical Insights

Gail J. Roboz, MD; Hagop Kantarjian, MD; Catherine Lai, MD, MPH; Amer Zeidan, MBBS, MHS

Medical Crossfire®: Integrating Next-Generation Endocrine Targeting Therapies to Improve Outcomes for Patients With HR+/HER2- Breast Cancer

Medical Crossfire®: Integrating Next-Generation Endocrine Targeting Therapies to Improve Outcomes for Patients With HR+/HER2- Breast Cancer

William J. Gradishar, MD, FASCO, FACP; Laura Huppert, MD; Yuan Yuan, MD, PhD

$Cases and Conversations™: Sorting Through the Expanding Treatment Options for Patients with Relapsed/Refractory Multiple Myeloma$

Cases and Conversations™: Sorting Through the Expanding Treatment Options for Patients with Relapsed/Refractory Multiple Myeloma

C. Ola Landgren, MD, PhD; Mohamad Mohty, MD, PhD; Surbhi Sidana, MD

Tumor Board: Expert Insights on Managing Classical 𝘌𝘎𝘍𝘙 Mutations, 𝘌𝘎𝘍𝘙 Exon 20 Insertions, and Atypical 𝘌𝘎𝘍𝘙 Mutations in Metastatic NSCLC

Tumor Board: Expert Insights on Managing Classical 𝘌𝘎𝘍𝘙 Mutations, 𝘌𝘎𝘍𝘙 Exon 20 Insertions, and Atypical 𝘌𝘎𝘍𝘙 Mutations in Metastatic NSCLC

Balazs Halmos, MD, MS; Enriqueta Felip, MD, PhD; Julia Rotow, MD

Medical Crossfire®: Improving Patient Outcomes in Myeloproliferative Neoplasms With Novel Therapeutic Approaches

Medical Crossfire®: Improving Patient Outcomes in Myeloproliferative Neoplasms With Novel Therapeutic Approaches

Rami Komrokji, MD; Gabriela Hobbs, MD; John Mascarenhas, MD; Naveen Pemmaraju, MD

PER Tumor Board®: Applying Recent Advances to Transform the Treatment Paradigm in SCLC—Expert Perspectives on New Approvals and Emerging Strategies

PER Tumor Board®: Applying Recent Advances to Transform the Treatment Paradigm in SCLC—Expert Perspectives on New Approvals and Emerging Strategies

Jonathan W. Goldman, MD; Percy Lee, MD, FASTRO; Erminia Massarelli, MD, PhD, MS; Misty D. Shields, MD, PhD

Breast Cancer Tumor Board: Targeting TROP2 – Innovations in Triple-Negative Breast Cancer Treatment

Breast Cancer Tumor Board: Targeting TROP2 – Innovations in Triple-Negative Breast Cancer Treatment

Joyce O’Shaughnessy, MD; Matthew P. Goetz, MD; Hope S. Rugo, MD, FASCO

Establishing the Rationale for ADC and ICI Combinations in TNBC

Establishing the Rationale for ADC and ICI Combinations in TNBC

Virginia Kaklamani, MD, DSc; Tiffany A. Traina, MD, FASCO

Breaking Down the Rationale for Targeting TROP2 in TNBC

Breaking Down the Rationale for Targeting TROP2 in TNBC

Filipa Lynce, MD; Rita Nanda, MD

Dissecting Clinical Trial and Real-World Data for ADCs in TNBC

Dissecting Clinical Trial and Real-World Data for ADCs in TNBC

Filipa Lynce, MD; Rita Nanda, MD

Evaluating the Latest Data and Ongoing Trials for Novel ADC Approaches in TNBC

Evaluating the Latest Data and Ongoing Trials for Novel ADC Approaches in TNBC

Aditya Bardia, MD, MPH, FASCO; Erika P. Hamilton, MD

Expert Guidance on Frequently Asked Questions Regarding the Use of ADCs in TNBC

Expert Guidance on Frequently Asked Questions Regarding the Use of ADCs in TNBC

Aditya Bardia, MD, MPH, FASCO; Erika P. Hamilton, MD; Virginia Kaklamani, MD, DSc

Breaking Down the Latest Clinical Data for First-line Maintenance and R/R SCLC

Breaking Down the Latest Clinical Data for First-line Maintenance and R/R SCLC

Rahul Gosain, MD, MBA; Rohit Gosain, MD; Hossein Borghaei, DO, MS

Cross-Disease Integration of Immunotherapy Innovations

Cross-Disease Integration of Immunotherapy Innovations

Ghassan Abou-Alfa, MD, MBA; Laura Williams Goff, MD, MSCI, MMHC, FASCO; Arndt Vogel, MD, PhD

Optimizing Treatment for Biliary Tract Cancers

Optimizing Treatment for Biliary Tract Cancers

Ghassan Abou-Alfa, MD, MBA; Laura Williams Goff, MD, MSCI, MMHC, FASCO; Arndt Vogel, MD, PhD

Broadening the Frontline—Studies Informing the Use of Immunotherapy in Hepatocellular Carcinoma

Broadening the Frontline—Studies Informing the Use of Immunotherapy in Hepatocellular Carcinoma

Ghassan Abou-Alfa, MD, MBA; Laura Williams Goff, MD, MSCI, MMHC, FASCO; Arndt Vogel, MD, PhD

PER Resource Center: Integrating Novel Approaches in TNBC – New Avenues for TROP2-Targeting ADCs and Beyond – Nursing

PER Resource Center: Integrating Novel Approaches in TNBC – New Avenues for TROP2-Targeting ADCs and Beyond – Nursing

Aditya Bardia, MD, MPH, FASCO; Erika P. Hamilton, MD; Virginia Kaklamani, MD, DSc; Filipa Lynce, MD; Rita Nanda, MD; Tiffany A. Traina, MD, FASCO

Show Me the Data®: New and Emerging Roles for Oral SERD Therapy in the Treatment of ER+/HER2– Breast Cancer

Show Me the Data®: New and Emerging Roles for Oral SERD Therapy in the Treatment of ER+/HER2– Breast Cancer

Ana C. Garrido-Castro, MD; Pedram Razavi, MD, PhD

Expert Roundtable and Panel Discussions: Current and Future Landscape of TNBC

Expert Roundtable and Panel Discussions: Current and Future Landscape of TNBC

Aditya Bardia, MD, MPH, FASCO; Erika P. Hamilton, MD; Tiffany A. Traina, MD, FASCO

Practical Considerations and Future Directions for New Treatment Strategies in SCLC

Practical Considerations and Future Directions for New Treatment Strategies in SCLC

Rahul Gosain, MD, MBA; Rohit Gosain, MD; Misty D. Shields, MD, PhD

Navigating Treatment Gaps in SCLC: Relapse, Resistance, and Need for New Options

Navigating Treatment Gaps in SCLC: Relapse, Resistance, and Need for New Options

Rahul Gosain, MD, MBA; Rohit Gosain, MD; Giannis Mountzios ΜD, PhD

Medical Crossfire® in Adjunctive Testing: Charting a New Course in Prostate Cancer Risk Assessment

Medical Crossfire® in Adjunctive Testing: Charting a New Course in Prostate Cancer Risk Assessment

Jason Hafron, MD; Aaron D. Berger, MD; Arpeet Shah, MD

Ready for Radioligand Therapy? Patient Selection and Sequencing Simplified

Ready for Radioligand Therapy? Patient Selection and Sequencing Simplified

Jeremie Calais, MD, PhD; Tanya B. Dorff, MD; Scott T. Tagawa, MD, MS, FACP, FASCO

Working Together: Overcoming Barriers to Optimize Outcomes in Patients Treated With Radioligand Therapy Through Multidisciplinary Care

Working Together: Overcoming Barriers to Optimize Outcomes in Patients Treated With Radioligand Therapy Through Multidisciplinary Care

Jeremie Calais, MD, PhD; Tanya B. Dorff, MD; Nerina McDonald, MSPAS, PA-C; Scott T. Tagawa, MD, MS, FACP, FASCO

Imaging Matters: Decoding PSMA PET for Better Decision-Making

Imaging Matters: Decoding PSMA PET for Better Decision-Making

Jeremie Calais, MD, PhD; Tanya B. Dorff, MD; Scott T. Tagawa, MD, MS, FACP, FASCO

BURST CME™ Resource Center: Integrating Novel PSMA-Directed Radioligand Approaches for Diagnosis and Management of Prostate Cancer

BURST CME™ Resource Center: Integrating Novel PSMA-Directed Radioligand Approaches for Diagnosis and Management of Prostate Cancer

Jeremie Calais, MD, PhD; Tanya B. Dorff, MD; Nerina McDonald, MSPAS, PA-C; Scott T. Tagawa, MD, MS, FACP, FASCO

Radioligand Therapy 101: The Science Behind the Strategy

Radioligand Therapy 101: The Science Behind the Strategy

Jeremie Calais, MD, PhD; Tanya B. Dorff, MD; Scott T. Tagawa, MD, MS, FACP, FASCO

Advances in Managing EGFR-Mutant NSCLC: Applying Evidence Across the Disease Continuum

Advances in Managing EGFR-Mutant NSCLC: Applying Evidence Across the Disease Continuum

Tina Cascone, MD, PhD; Christina Baik, MD, MPH; David Planchard, MD, PhD

Community Practice Connections™: Enhancing Melanoma Outcomes With Intratumoral Oncolytic Immunotherapy–Strategies for the Multidisciplinary Team

Community Practice Connections™: Enhancing Melanoma Outcomes With Intratumoral Oncolytic Immunotherapy–Strategies for the Multidisciplinary Team

Yana G. Najjar, MD; Sapna Patel, MD

A New Era of Targeted Therapy for Advanced NSCLC: Exploring Future Directions for Bispecific Antibodies and ADCs

A New Era of Targeted Therapy for Advanced NSCLC: Exploring Future Directions for Bispecific Antibodies and ADCs

Sandip Patel, MD, FASCO; Myung-Ju Ahn, MD; Giannis Mountzios, MD, MSc, PhD; Zofia Piotrowska, MD, MHS

Navigating Advances in Neovascular Retinal Disease: Translating Evidence to Practice in AMD, DME, and RVO

Navigating Advances in Neovascular Retinal Disease: Translating Evidence to Practice in AMD, DME, and RVO

SriniVas R. Sadda, MD, FARVO; Mark R. Barakat, MD, FASRS; David A. Eichenbaum, MD, FASRS

Enhancing Prostate Cancer Outcomes – The Role of PSMA and Targeted Treatment Strategies

Enhancing Prostate Cancer Outcomes – The Role of PSMA and Targeted Treatment Strategies

Ana Kiess, MD, PhD; Erin Grady, MD, CCD, FACNM, FSNMMI; Himanshu Nagar, MD, MS; Scott T. Tagawa, MD, MS, FASCO, FACP

(CME Track) Antibody–Drug Conjugates in Oncology: The Essentials of AE Management for Better Patient Outcomes

(CME Track) Antibody–Drug Conjugates in Oncology: The Essentials of AE Management for Better Patient Outcomes

Michelle L. Taylor, ANP-BC; Emely Alfaro, DNP, RN, CNS, OCN; Paige Griffith, CRNP; Beth Sandy, MSN, CRNP, FAPO

Trending on OncLive

Nivolumab Plus SOC Therapy Shows Encouraging Disease Control in Grade Group 5 Prostate Cancer

Capivasertib/Fulvestrant Yields Numerical OS Advantage in PIK3CA/AKT1/PTEN–Altered Breast Cancer

Post–T-DXd Sacituzumab Govitecan Plus Trastuzumab Yields Low ORR in HER2+ Metastatic Breast Cancer

ADCs Reshape the Future of Lung Cancer Care: From Second-Line Therapy to Earlier Intervention

FDA Approves Zenocutuzumab for NRG1 Fusion+ Cholangiocarcinoma