Faculty

Karthik Giridhar

MD
Assistant Professor of Oncology
Mayo Clinic

Dr. Giridhar is a breast oncologist at Mayo Clinic, where he also completed his fellowship training. Prior to this, he obtained his medical degree from the University of Pittsburg School of Medicine and completed his residency in internal medicine at the University of California, San Francisco. Dr. Giridhar’s therapeutic trial research focuses on mechanisms of hormonal receptor resistance. His translational research focuses on the identification and development of circulating predictive biomarkers, with his lab performing studies on circulating tumor cells. He received the Conquer Cancer Foundation Young Investigator Grant and the Grand Forks Career Development Grant Award to continue work on phenotypically characterizing circulating tumor cells. He is currently an Assistant Professor in Oncology and the Breast Tumor Group Practice Chair at Mayo Clinic (Rochester).

2026 Sessions

General Session

Oral SERDs in Breast Cancer: They’re All the Same: Yes vs No

This debate will examine the evolving role of oral selective estrogen receptor degraders (SERDs) in breast cancer and address the question of whether these agents are truly...

  • Moderator
    • Kelly McCann, MD, PhD
  • Presenter
    • Karthik Giridhar, MD
    • Seth Wander, MD, PhD
Breast Cancers

Yes

This debate will examine the evolving role of oral selective estrogen receptor degraders (SERDs) in breast cancer and address the question of whether these agents are truly interchangeable. Compare differences in mechanism of action, clinical efficacy, resistance profiles, and safety across available and emerging oral SERDs. Speakers will highlight implications for patient selection and sequencing in hormone receptor-positive disease and provide expert insight into how nuanced differences among oral SERDs may influence real-world treatment decisions.

Faculty will review shared mechanisms of action, class-wide efficacy data, and common safety profiles across available, largely comparable therapeutic agents. The discussion will address whether differences among oral SERDs translate into meaningful distinctions in clinical practice, and participants will gain insight into the rationale for viewing oral SERDs as a broadly similar therapeutic class in hormone receptor-positive breast cancer.

Debate Speaker

Saturday, September 26 10:05–10:25 AM
Breast Cancers
Faculty

Seth Wander

MD, PhD
Assistant Professor of Medicine
Harvard Medical School, Massachusetts General Hospital

Dr. Wander is a medical oncologist at the Massachusetts General Hospital with a clinical and translational research interest in breast cancer and cancer genomics. He serves as the Director of Translational Research for the Breast Oncology Program, where he leads a multidisciplinary team focused upon leveraging genetic and molecular sequencing results to understand how cancers become resistant to standard therapies in order to develop novel, personalized treatment strategies. Dr. Wander has published more than seventy peer-reviewed manuscripts in the field of precision medicine and continues to present educational sessions and original research nationally and internationally related to drug resistance and the development of personalized therapy for breast cancer. He is an Assistant Professor of Medicine at Harvard Medical School and remains engaged in teaching medical students, residents, and fellows. He was a recipient of the 2017 Dana-Farber Cancer Institute Wong Family Translational Research Award and a 2018 recipient of the American Society of Clinical Oncology Young Investigator Award. As the Director of Precision Medicine in the Termeer Center for Targeted Therapies, he leads efforts across the MGH Cancer Center to promote novel and innovative research leveraging emerging genetic sequencing technologies to both understand resistance to cancer therapies and inform the design of new clinical trials. Dr. Wander's research has helped to shape our understanding of drug resistance in metastatic breast cancer, and he continues to lead a variety of clinical trials, across all phases of drug development, focused upon developing new, personalized treatment options for patients with breast cancer.

No

This debate will examine the evolving role of oral selective estrogen receptor degraders (SERDs) in breast cancer and address the question of whether these agents are truly interchangeable. Compare differences in mechanism of action, clinical efficacy, resistance profiles, and safety across available and emerging oral SERDs. Speakers will highlight implications for patient selection and sequencing in hormone receptor-positive disease and provide expert insight into how nuanced differences among oral SERDs may influence real-world treatment decisions.

Our presenters will examine differences in pharmacology, potency, resistance profiles, and clinical trial outcomes among available and emerging agents, discussing how these distinctions may influence patient selection, sequencing, and combination strategies. Delve into the clinical relevance for patients of heterogeneity within the oral SERD class.

Debate Speaker

Saturday, September 26 10:25–10:45 AM
Breast Cancers
Faculty

Karthik Giridhar

MD
Assistant Professor of Oncology
Mayo Clinic

Dr. Giridhar is a breast oncologist at Mayo Clinic, where he also completed his fellowship training. Prior to this, he obtained his medical degree from the University of Pittsburg School of Medicine and completed his residency in internal medicine at the University of California, San Francisco. Dr. Giridhar’s therapeutic trial research focuses on mechanisms of hormonal receptor resistance. His translational research focuses on the identification and development of circulating predictive biomarkers, with his lab performing studies on circulating tumor cells. He received the Conquer Cancer Foundation Young Investigator Grant and the Grand Forks Career Development Grant Award to continue work on phenotypically characterizing circulating tumor cells. He is currently an Assistant Professor in Oncology and the Breast Tumor Group Practice Chair at Mayo Clinic (Rochester).

No

This debate will examine the evolving role of oral selective estrogen receptor degraders (SERDs) in breast cancer and address the question of whether these agents are truly interchangeable. Compare differences in mechanism of action, clinical efficacy, resistance profiles, and safety across available and emerging oral SERDs. Speakers will highlight implications for patient selection and sequencing in hormone receptor-positive disease and provide expert insight into how nuanced differences among oral SERDs may influence real-world treatment decisions.

Our presenters will examine differences in pharmacology, potency, resistance profiles, and clinical trial outcomes among available and emerging agents, discussing how these distinctions may influence patient selection, sequencing, and combination strategies. Delve into the clinical relevance for patients of heterogeneity within the oral SERD class.

Debate Speaker

Saturday, September 26 10:25–10:45 AM
Breast Cancers
Faculty

Karthik Giridhar

MD
Assistant Professor of Oncology
Mayo Clinic

Dr. Giridhar is a breast oncologist at Mayo Clinic, where he also completed his fellowship training. Prior to this, he obtained his medical degree from the University of Pittsburg School of Medicine and completed his residency in internal medicine at the University of California, San Francisco. Dr. Giridhar’s therapeutic trial research focuses on mechanisms of hormonal receptor resistance. His translational research focuses on the identification and development of circulating predictive biomarkers, with his lab performing studies on circulating tumor cells. He received the Conquer Cancer Foundation Young Investigator Grant and the Grand Forks Career Development Grant Award to continue work on phenotypically characterizing circulating tumor cells. He is currently an Assistant Professor in Oncology and the Breast Tumor Group Practice Chair at Mayo Clinic (Rochester).

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