Marcia Simpson Brose, MD PhD
Emeritus Professor CE of Otorhinolaryngology: Head and Neck Surgery
Department: Otorhinolaryngology: Head and Neck Surgery
Contact information
Sidney Kimmel Comprehensive Cancer Center
10800 Knights Rd
Mansion House, 3rd floor
Philadelphia, PA 19114
10800 Knights Rd
Mansion House, 3rd floor
Philadelphia, PA 19114
Office: 215-890-3030
Fax: 215-890-3031
Fax: 215-890-3031
Email:
Marcia.Brose@Jefferson.edu
Marcia.Brose@Jefferson.edu
Publications
Links
Search PubMed for articles
Primary Work Website
Otorhinolaryngology Department Home Page
PUBMED link
Search PubMed for articles
Primary Work Website
Otorhinolaryngology Department Home Page
PUBMED link
Education
B.A. (Biology)
Amherst College, Amherst, MA, 1986.
Ph.D. (Genetics and Developmental Biology)
Rockefeller University, New York, NY, 1994.
M.D. (Medicine)
Cornell University Medical College, New York, NY, 1995.
Permanent linkB.A. (Biology)
Amherst College, Amherst, MA, 1986.
Ph.D. (Genetics and Developmental Biology)
Rockefeller University, New York, NY, 1994.
M.D. (Medicine)
Cornell University Medical College, New York, NY, 1995.
Description of Research Expertise
Marcia S. Brose MD PhD is an Associate Professor at the University Of Pennsylvania School Of Medicine, in the Departments of Otorhinolaryngology: Head and Neck Surgery, and Medicine, division of Hematology/Oncology. Over the past 8 years she has been the Director of the Thyroid Cancer Therapeutics Program. In 2015 she was appointed the Director of the Center for Rare Cancers and Personalized Therapy for the Abramson Cancer Center.Dr. Brose received her Medical Degree from Cornell University Medical College in 1995, and her PhD in Genetics in 1994 from the Rockefeller University in New York City. She completed her specialty training in Internal Medicine, and Hematology and Oncology, and postdoctoral work in cancer genetics at the University of Pennsylvania. Dr. Brose’s current research interest includes the identification of novel treatments for advanced thyroid cancer and solid tumors with rare genetic changes. She runs a clinical research unit and a laboratory aimed at identifying new therapeutic targets for solid tumors through genetic and molecular studies of tumor tissue. She started and currently runs the program for thyroid cancer therapeutics at the Abramson Cancer Center of the University of Pennsylvania. As the recently appointed the inaugural Director of the Center for Rare Cancers and Personalized Therapy, she aims to bring the advances of new treatments recently approved for more common cancers to patients that have more rare diseases. Using the identification of genetic signatures she aims to match candidates to new targeted agents. She is currently the PI of several active clinical phase I-III clinical trials.
Dr. Brose is widely regarded as a pioneer of the new fields of Thyroid Cancer Oncology and Personalized Cancer Care. Prior to her work, there were no treatments for patients who had advanced disease. She is the global co-PI of DECISION, the pivotal international multi-institutional Phase III trial of sorafenib for patients with iodine refractory differentiated thyroid cancer which work was recognized with a plenary lecture to the American Society of Clinical Oncology in 2013 (with over 21,000 in attendance and widely reviewed online). The study was published in The Lancet and lead to the first FDA approved agent in this indication. She is also the PI of the international multicenter phase II study of vemurafenib in patients with RAI refractory papillary thyroid cancer that harbors the BRAFV600E mutations which is the first non-VEGF receptor TKI to show activity in this disease which was recently published in Lancet Oncology. She is a Co-Investigator and author of the pivotal phase III trials EXAM (cabozantinib in medullary thyroid cancer) and SELECT (lenvatinib in differentiated thyroid cancer) which were published in the Journal of Clinical Oncology and New England Journal of Medicine and both of which led to FDA approvals for Medullary and RAI refractory Differentiated Thyroid Cancer. She is an internationally recognized leader of the field of thyroid cancer oncology, and has been invited to lecture and teach physicians in the US, Europe, Asia, Central and South America on the emerging treatments for advanced thyroid cancers.
Her laboratory, which focuses on the correlative aspects of clinical trials has been a leader in identifying genetic markers of responses in clinical trials (Yarchoan et al 2016, and Brose et al, 2016).
She sees patients from across the US and Canada and abroad and regularly is invited to grand rounds to educate surgeons, endocrinologists and oncologists on how to incorporate the new systemic treatments for advanced thyroid cancer.
In summary, Dr. Brose’s research has led to new hope for patients with advanced thyroid cancer. Her work has laid the foundation for successful treatment approaches that are not only extending progression free survival, but overall survival as well.
Description of Clinical Expertise
Treatment of Thyroid Cancer, PhaseI/II/III clinical trials, novel drug target discovery, and use of genetic testing in diagnosis, prognostication and prediction of resopnse to the treatment of cancer. Treatment of Rare Cancers of the Head and Neck.Description of Other Expertise
Dr. Brose regularly instructs and mentors medical students,Internal Medicine and Head and Neck Surgerical residents, fellows (Hematology/Oncology, and Head and Neck Surgery) and post-doctoral PhD fellows who rotate through her lab in Hematology/Oncology and Cell geneticsORCID identifier 
0000-0001-7096-4057

Selected Publications
Waguespack SG, Brose MS, Lin JJ, McDermott R, Almubarak M, Bauman J, Casanova M, Kummar S, Lee SH, Rieke DT, Oh DY, Qi C, Neu N, Burcoveanu DI, Mussi CE, Drilon A, Hong DS, Cabanillas ME: Larotrectinib in TRK fusion differentiated thyroid carcinoma: updated trial data. Endocr Relat Cancer Page: Epub ahead of print, July 2026.Brose MS, Keam B, Krajewska J, Hoff AO, Vaisman F, Lin CC, Hitre E, Bowles DW, Robinson B, Sherman SI, Ngamphaiboon N, Guo X, Simmons A, Williamson D, Andrianova S, Berry N, Capdevila J: Cabozantinib versus placebo in patients with radioiodine-refractory differentiated thyroid cancer after prior vascular endothelial growth factor receptor-targeted therapy (COSMIC-311): outcomes by BRAF status. Front Oncol 4(16): 1748566, March 2026.
Elisei R, Wirth LJ, Capdevila J, Hoff AO, Tahara M, Sherman EJ, Hu MI, Ge MH, Wadsley J, Vaisman F, Kopeckova K, Krajewska J, Olvera D, Churchill C, Maeda P, Gilligan AM, Lin Y, Payakachat N, Robinson B, Hadoux J, Brose MS: Patient-Reported Tolerability of Selpercatinib Compared to Cabozantinib/Vandetanib: A Secondary Analysis of the LIBRETTO-531 Randomized-Controlled Trial in RET-Mutant Medullary Thyroid Cancer. Thyroid 35(10): 1162-1172, October 2025.
Stezzi M, Brose M, Gordon SW, Solomides C, Tuluc M, Miller J: Well- Differentiated Lung Neuroendocrine Tumor Masquerading as Metastatic Medullary Thyroid Cancer. JCEM Case Rep 3(9): luaf172, July 2025.
Brose MS, Westphalen CB, Pan X, Bernard-Gauthier V, Kurtinecz M, Guo H, Aris V, Brett NR, Majdi A, Subbiah V, Pennell NA, Kehl KL, Drilon A: Larotrectinib Compared With Real-World Non-Tropomyosin Receptor Kinase Inhibitor Therapies in Patients With Tropomyosin Receptor Kinase Fusion Cancer. JCO Precis Oncol Page: e2400500, April 2025.
Waguespack SG, Cabanillas ME, Bernard-Gauthier V, Assar N, Bloom G, Esparza R, Brose MS: A plain language summary looking at how well larotrectinib works and how safe it is for people with TRK fusion-positive thyroid cancer. Future Oncol 21(2): 169-179, January 2025.
Regnault A, Bunod L, Loubert A, Brose MS, Hess LM, Maeda P, Lin Y, Speck RM, Gilligan AM, Payakachat N: Assessing tolerability with the Functional Assessment of Cancer Therapy item GP5: psychometric evidence from LIBRETTO-531, a phase 3 trial of selpercatinib in medullary thyroid cancer. J Patient Rep Outcomes 8(1): 149, December 2024.
Wirth LJ, Brose MS, Subbiah V, Worden F, Solomon B, Robinson B, Hadoux J, Tomasini P, Weiler D, Deschler-Baier B, Tan DSW, Maeda P, Lin Y, Singh R, Bayt T, Drilon A, Cassier PA: Durability of Response With Selpercatinib in Patients With RET-Activated Thyroid Cancer: Long-Term Safety and Efficacy From LIBRETTO-001. J Clin Oncol 42(27): 3187-3195, September 2024.
Brose MS, Capdevila J, Elisei R, Bastholt L, Führer-Sakel D, Leboulleux S, Sugitani I, Taylor MH, Wang Z, Wirth LJ, Worden FP, Bernard J, Caferra P, Colzani RM, Liu S, Schlumberger M: Vandetanib in locally advanced or metastatic differentiated thyroid cancer refractory to radioiodine therapy. Endocr Relat Cancer. Endocr Relat Cancer 31(8): e230354, July 2024.
Capdevila J, Krajewska J, Hernando J, Robinson B, Sherman SI, Jarzab B, Lin CC, Vaisman F, Hoff AO, Hitre E, Bowles DW, Williamson D, Levytskyy R, Oliver J, Keam B, Brose MS: Increased Progression-Free Survival with Cabozantinib Versus Placebo in Patients with Radioiodine-Refractory Differentiated Thyroid Cancer Irrespective of Prior Vascular Endothelial Growth Factor Receptor-Targeted Therapy and Tumor Histology: A Subgroup Analysis of the COSMIC-311 Study. Thyroid 34(3): 347-359, March 2024.
