News
Media
Conferences
Publications
Events
CME/CE
Resources
Career Center
Subscribe

Your AI-Trained Oncology Knowledge Connection!

|Videos|March 3, 2023

Tumor-Naïve vs Tumor-Informed ctDNA Analyses in CRC Biomarker Testing

Author(s)Tanios S. Bekaii-Saab, MD, FACP, Daniel H. Ahn, DO, Stacey A. Cohen, MD

Dr Daniel H. Ahn explains the logistical concerns of ctDNA testing in colorectal cancer.

Episodes in this series

EP. 1 Patient Scenario: A 64-Year-Old Man with Stage II Colon Cancer

EP. 1 Patient Scenario: A 64-Year-Old Man with Stage II Colon Cancer

EP. 2 Considering a Patient with Colorectal Cancer for Adjuvant Chemotherapy

EP. 2 Considering a Patient with Colorectal Cancer for Adjuvant Chemotherapy

EP. 3 Over- and Under-Treatment of Stage II and III Colorectal Cancer in the Adjuvant Setting

EP. 3 Over- and Under-Treatment of Stage II and III Colorectal Cancer in the Adjuvant Setting

EP. 4 Monitoring a Patient with Colorectal Cancer After Adjuvant Therapy

EP. 4 Monitoring a Patient with Colorectal Cancer After Adjuvant Therapy

EP. 5 Testing for Minimal Residual Disease (MRD) in Patients with Colorectal Cancer

EP. 5 Testing for Minimal Residual Disease (MRD) in Patients with Colorectal Cancer

EP. 6 Emerging Biomarkers for Assessing Therapy Response in Colorectal Cancer

EP. 6 Emerging Biomarkers for Assessing Therapy Response in Colorectal Cancer

EP. 7 Circulating Tumor DNA and its Use in Colorectal Cancer Treatment Decision-Making

EP. 7 Circulating Tumor DNA and its Use in Colorectal Cancer Treatment Decision-Making

EP. 8 Tumor-Naïve vs Tumor-Informed ctDNA Analyses in CRC Biomarker Testing

EP. 8 Tumor-Naïve vs Tumor-Informed ctDNA Analyses in CRC Biomarker Testing

EP. 9 Utilizing ctDNA Assays in Colorectal Cancer for Treatment and Monitoring of Patients with Solid Tumors

EP. 9 Utilizing ctDNA Assays in Colorectal Cancer for Treatment and Monitoring of Patients with Solid Tumors

EP. 10 Key Clinical Trial Data on ctDNA Assays in Colorectal Cancer

EP. 10 Key Clinical Trial Data on ctDNA Assays in Colorectal Cancer

EP. 11 The Evolution of ctDNA Assays in Colorectal Cancer

EP. 11 The Evolution of ctDNA Assays in Colorectal Cancer

EP. 12 Final Comments on ctDNA Testing in the Management of Colorectal Cancer

EP. 12 Final Comments on ctDNA Testing in the Management of Colorectal Cancer

Newsletter

Stay up to date on recent advances in the multidisciplinary approach to cancer.

Related Content

According to Yoanna S. Pumpalova, MD, both early-onset and later-onset colorectal cancers are genetically similar in terms of somatic mutations.

Can Anti-Inflammatory Pathway-Targeting Treatment Work in Early Onset CRC?

ByYoanna S. Pumpalova, MD

March 23rd 2026

It’s unlikely guidelines recommend screening patients younger than 45 years for colorectal cancer, according to Yoanna S. Pumpalova, MD.

What Is the Most Effective Way to Identify Young Patients With Colorectal Cancer?

ByYoanna S. Pumpalova, MD

March 20th 2026

The NHS-Galleri study showed that multi-cancer screening with the Galleri test did not reduce the number of cancers found at stage III or IV.

Liquid Biopsies, Blood-Based MCED Tests for Detecting CRC in Young Patients

ByYoanna S. Pumpalova, MD

March 19th 2026

Marc Lehrer Greenwald, MD, spoke with CancerNetwork® about how North Shore University Hospital treats young patients with colorectal cancer.

Treating Young Patients With Colorectal Cancer: Talking With a Surgeon

March 9th 2026

Marc Lehrer Greenwald, MD, discussed a recent patient case he had with a 22-year-old woman who was diagnosed with colorectal cancer. Marc Lehrer Greenwald, MD, discussed a recent patient case he had with a 22-year-old woman who was diagnosed with colorectal cancer.

A 22-Year-Old Patient With Colorectal Cancer: The Nuances of Care

ByMarc Lehrer Greenwald, MD

March 7th 2026

Latest CME

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 | Iowa 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 | Iowa Oncology Society

Marla D. Lipsyc-Sharf, MD; Sheila Donnelly, MD

Show Me the Data™: Post-TKI Sequencing in EGFR-Mutated NSCLC—Optimizing Current Strategies and Preparing for New Treatment Modalities

Show Me the Data™: Post-TKI Sequencing in EGFR-Mutated NSCLC—Optimizing Current Strategies and Preparing for New Treatment Modalities

Christine M. Lovly, MD, PhD, FASCO; Xiuning Le, MD, PhD; Hossein Borghaei, DO, MS; Lyudmila Bazhenova, MD

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 | Texas Society of Clinical Oncology

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 | Texas Society of Clinical Oncology

Marla D. Lipsyc-Sharf, MD; Parth Khade, MD

22nd Annual International Symposium on Melanoma and Other Cutaneous Malignancies®

22nd Annual International Symposium on Melanoma and Other Cutaneous Malignancies®

Omid Hamid, MD; Sapna Patel, MD

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 | North Carolina Oncology Association

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 | North Carolina Oncology Association

Marla D. Lipsyc-Sharf, MD; Yan Ji, MD

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 | New Mexico Society of Clinical Oncology

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 | New Mexico Society of Clinical Oncology

Marla D. Lipsyc-Sharf, MD; Kimberly Ku, MD

Addressing Unmet Needs in HER2+ Metastatic BTC

Addressing Unmet Needs in HER2+ Metastatic BTC

Rahul Gosain, MD, MBA; Rohit Gosain, MD; Ghassan Abou-Alfa, MD, MBA

Community Practice Connections™: Tailored Treatment Approaches for Older Patients With Advanced HR+/HER2– Breast Cancer

Community Practice Connections™: Tailored Treatment Approaches for Older Patients With Advanced HR+/HER2– Breast Cancer

Hope S. Rugo, MD, FASCO; Neil M. Iyengar, MD; Komal Jhaveri, MD, FACP

Community Practice Connections™: Optimizing Treatment Outcomes and Preserving Fertility in Premenopausal HR+ Breast Cancer

Community Practice Connections™: Optimizing Treatment Outcomes and Preserving Fertility in Premenopausal HR+ Breast Cancer

Rebecca Shatsky, MD; Kelly McCann, MD, PhD; Michelle L. Taylor, ANP-BC

From Bench to Bedside: Paradigm Shifts in HER2+ Metastatic BTC Treatment

From Bench to Bedside: Paradigm Shifts in HER2+ Metastatic BTC Treatment

Rahul Gosain, MD, MBA; Rohit Gosain, MD; Shubham Pant, MD, MBBS

Proactive Adverse Event Management for HER2+ BTC Treatments

Proactive Adverse Event Management for HER2+ BTC Treatments

Rahul Gosain, MD, MBA; Rohit Gosain, MD; Rachna T. Shroff, MD, MS, FASCO

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

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

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

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

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

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

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

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

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

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

Breaking Down the Rationale for Targeting TROP2 in TNBC

Breaking Down the Rationale for Targeting TROP2 in TNBC

Filipa Lynce, MD; Rita Nanda, MD

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

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

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

(CME Track) Live Tumor Board: Squamous Cell Carcinoma of the Head & Neck - Post-CRT Decisions in the Locally Advanced Setting

(CME Track) Live Tumor Board: Squamous Cell Carcinoma of the Head & Neck - Post-CRT Decisions in the Locally Advanced Setting

Quynh-Thu Le, MD, FACR, FASTRO; Vlad C. Sandulache, MD, PhD

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 | Rocky Mountain 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 | Rocky Mountain Oncology Society

Seth A. Wander, MD, PhD; Kara M. Schenk, MD

Oncology Town Hall - Translating the Latest Updates Into the Care of Patients With AML in Community Practices

Oncology Town Hall - Translating the Latest Updates Into the Care of Patients With AML in Community Practices

April 9, 2026

11th Annual School of Gastrointestinal Oncology® (SOGO®)

In-Person + Virtual Event

11th Annual School of Gastrointestinal Oncology® (SOGO®)

April 11, 2026

Tumor Board: Clinical Integration of Molecular Profiling in Glioma - Transforming the Use of Targeted Therapy

In-Person + Virtual Event

Tumor Board: Clinical Integration of Molecular Profiling in Glioma - Transforming the Use of Targeted Therapy

April 20, 2026

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

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

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

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

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

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

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

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

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

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

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

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

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

Trending on CancerNetwork

Frontline Sunvozertinib Improves PFS vs Chemotherapy in EGFR+ NSCLC

FDA Clears Investigator-Initiated IND for SRN-101 in Recurrent High-Grade Glioma

The Evolution of Artificial Intelligence in Oncology: Impact on Trials, Workflows, and Outcomes

Selinexor Combo Improves Spleen Volume Reduction in Myelofibrosis

Exploring the Role of Radiation Oncology in Kidney Cancer Awareness Month