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Colin J. Thomas, MD

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Assistant Professor of Clinical Medicine (Hematology-Oncology)
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Attending Physician, Hospital of the University of Pennsylvania
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Department: Medicine
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Perelman Center for Advanced Medicine
1e 3400 Civic Center Blvd
3d 12th floor, South Pavilion
Philadelphia, PA 19104
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Email: colin.thomas1@pennmedicine.upenn.edu
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13 Education:
21 7 BS 2b (Cell Biology and Biochemistry ) c
2d Bucknell University , 2010.
 21 7 MD 16 (Medicine ) c
3e Temple University School of Medicine , 2016.
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Selected Publications

1c7 Daniel J Landsburg, Nancy Musoke, Caren Gentile, Taylor R Brooks, Sunita D Nasta, Stefan K Barta, Jordan S Carter, Elise A Chong, Jakub Svoboda, Stephen J Schuster, Colin J Thomas, Emily B Tomasulo, Michael R Cook, Jennifer J D Morrissette, Paolo F Caimi, Brian T Hill: Prognostic impact of TP53 alterations in cases of newly diagnosed large B-cell lymphoma. Leukemia February 2026.

 128 Colin J. Thomas, Ming Jung Koh, Omar Elghawy, et al.: Clinical outcomes of mature T- and NK-cell lymphomas in hepatitis B virus positive individuals: results from the PETAL Global Consortium. Leukemia & Lymphoma March 2026.

 2ca John Sharp, Paolo Strati, Subodh Bhatta, Jennifer J Huang, Colin J Thomas, Omar Elghawy, Daniel Reef, Alexander Micah Gorzewski, John Seng Wang, Geoffrey Shouse, Catherine Reinert, Andinet Teferra, Esteban Toro Velez, Ari Pelcovits, Thomas A Ollila, William Bennett Clark, Victor Yazbeck, Joseph E Maakaron, Manali Kamdar, Lindsey A Fitzgerald, Alexey V Danilov, Reem Karmali, Natalie S Grover, Stefan K Barta, Timothy J Voorhees, Andy I Chen, Mazyar Shadman, Sairah Ahmed, Narendranath Epperla: Real-World Outcomes and Toxicities of CAR-T in Relapsed/Refractory Follicular Lymphoma: A Multicenter Cohort Study. Blood Advances February 2026.

 23e Omar Elghawy, Austin G. Yang, Jonathan H. Sussman, Colin J. Thomas, Jordan S. Carter, Daniel J. Landsburg, Jakub Svoboda, Ellen Kim, Alain H. Rook, Jina Chung, Jennifer Villasenor-Park, John P. Plastaras, Michael LaRiviere, Harper Hubbeling, Monica Chelius, Sunita D. Nasta, Elise A. Chong, Stephen J. Schuster, Stefan K. Barta: Retrospective Cohort Study of Novel Oral Agents Lenalidomide and Duvelisib For Relapsed or Refractory Mycosis Fungoides and Sézary Syndrome. JAAD 92(3): 634-636. Mar 2025.

 1f8 Adam J Olszewski, Thomas A Ollila, Dai Chihara, Geoffrey Shouse, Natalie Grover, Reem Karmali, Pallawi Torka, Colin Thomas, Praveen Ramakrishnan Geethakumari, Stefan K Barta , Nancy L Bartlett, Narendranath Epperla: Comparative effectiveness of immunotherapy alone or with chemotherapy as first-line treatment for marginal zone lymphoma. Haematologica November 2025 Notes: doi: 10.3324/haematol.2025.288946. Online ahead of print.

141 Sharma, M., Myrdal, C., Thomas, C., Chung, J., Barta, S. & Kim, E. : A Rare Case of Tender Facial Nodules as a Presenting Sign of Lymphoplasmacytic Lymphoma. JAAD Case Reports 66: 6:58-61. Sep 2025 Notes: https://doi.org/10.1016/j.jdcr.2025.08.028.

 119 Colin J. Thomas & Stefan K. Barta: The Promise of Immunotherapies in T-Cell Lymphoma. Clinical Lymphoma, Myeloma & Leukemia S2152-2650(25): 03399-3. Sep 2025 Notes: https://doi.org/10.1016/j.clml.2025.09.006.

 1d5 Nikita K Dave, Veronica Carvajal, Alex C Watts, Jordan S Carter, Michael Cook, Colin Thomas, Donald E Tsai, Stephen J Schuster, James N Gerson, Stefan K Barta, Jakub Svoboda, Elise A Chong, Wei-Ting Hwang, Daniel J Landsburg, Sunita D Nasta : Outcomes at a single institution with MTR induction and consolidation in the management of primary CNS lymphoma. Blood Neoplasia 2(3): 100102. July 2025.

 207 Narendranath Epperla, Geoffrey Shouse, Natalie S Grover, Pallawi Torka, Kaitlin Annunzio, Marcus Watkins, Andrea Anampa-Guzmán, Beth Christian, Colin Thomas, Stefan K Barta, Praveen Ramakrishnan Geethakumari, Reem Karmali, Nancy L Bartlett, Adam J Olszewski: Impact of diagnosis to treatment interval on outcomes in patients with newly diagnosed marginal zone lymphoma - a US multisite study. Experimental Hematology & Oncology 14(1), May 2025.

 234 Pallawi Torka, Natalie S. Grover, Timothy J. Voorhees, Reem Karmali, Kaitlin Annunzio, Marcus P. Watkins, Andrea Anampa-Guzmán, Heather Reves, Montreh Tavakkoli, Beth Christian, Colin Thomas, Stefan K. Barta, Praveen Ramakrishnan Geethakumari, Nancy L. Bartlett, Geoffrey Shouse, Adam J. Olszewski, Narendranath Epperla: Impact of Age on Biology, Presentation and Outcomes in Marginal Zone Lymphoma: Results From a Multicenter Cohort Study. Hematological Oncology 43(3): e70087. May 2025.

 1e8 Omar Elghawy, Jonathan H Sussman, Austin G Yang, Colin J Thomas, Jordan S Carter, Daniel J Landsburg, Jakub Svoboda, Ellen Kim, Alain H Rook, Jina Chung, John P Plastaras, Michael LaRiviere, Harper Hubbeling, Monica Chelius, Sunita D Nasta, Elise A Chong, Stephen J Schuster, Stefan K Barta: Pembrolizumab in Relapsed or Refractory Mycosis Fungoides or Sézary Syndrome. JAMA Dermatology 161(6): 656-658. Jun 2025.

 151 Colin J. Thomas, David Porter, Vivianna M. Van Deerlin, Siddharth Bhattacharyya, Veronica Carvajal, Joseph Kim, Salvatore Priore, Guang Yang, James N. Gerson & Stefan K. Barta: Aleukemic soft-tissue relapse post allogeneic hematopoietic cell transplantation in T-prolymphocytic leukemia 4a Leukemia & Lymphoma 66(6): 1158-1161. Jun 2025.

 1e7 Omar Elghawy, Julia Wang, Olivia J. Leung, Nishwant Swami, Veronica Carvajal, Guang Yang, Daniel J. Landsburg, Jakub Svoboda, Sunita D. Nasta1, Elise A. Chong1, Stephen J. Schuster1, Colin J. Thomas, Jordan S. Carter, Adam Bagg, Stefan K. Barta: Clinical Impact of Next-Generation Sequencing of T-cell Lymphomas: A Single Institution Experience. Clinical Lymphoma, Myeloma and Leukemia 25(7): 505-511.e2. Jul 2025.

 21d Epperla N, Welkie RL, Torka P, Shouse G, Karmali R, Shea L, Anampa-Guzmán A, Oh TS, Reaves H, Tavakkoli M, Lindsey K, Greenwell IB, Hansinger E, Thomas C, Chowdhury SM, Annunzio K, Christian B, Barta SK, Geethakumari PR, Bartlett NL, Herrera AF, Grover NS, Olszewski AJ.: Impact of early relapse within 24 months after first-line systemic therapy (POD24) on outcomes in patients with marginal zone lymphoma: A US multisite study. J Hematol Oncol 16(1): 49, May 2023.

 1b2 Grover NS, Annunzio K, Watkins M, Torka P, Karmali R, Anampa-Guzmán A, Oh TS, Reves H, Tavakkoli M, Hansinger E, Christian B, Thomas C, Barta SK, Geethakumari PR, Bartlett NL, Shouse G, Olszewski AJ, Epperla N.: Evaluation of Ki-67 expression and large cell content as prognostic markers in MZL: a multicenter cohort study. Blood Cancer J 14(1): 182, Oct 2024.

 17d Omar Elghawy, Miao Cao, Jason Xu, Daniel J. Landsburg, Jakub Svoboda, Sunita D. Nasta, Elise A. Chong, Stephen J. Schuster, Colin J. Thomas, Jordan S. Carter, Montreh Tavakkoli, Marco Ruella and Stefan K. Barta: Prevalence and Prognostication of CD5+ Mature T-Cell Lymphomas. Cancers 16(19): 3430. Oct 2024.

 10d Colin Thomas, Veronica Carvajal and Stefan Barta: Targeted Therapies in the Treatment of Mantle Cell Lymphoma. Cancers. MDPI, 16(10): 1937, May 2024 Notes: https://doi.org/10.3390/cancers16101937.

 180 Epperla N, Zhao Q, Moyo T, Watkins MP, Tavakkoli M, Bello C, Torka P, Reddy N, Thomas C, Annunzio K, Christian B, Barta SK, Shouse G, Olszewski AJ, Bartlett NL.: Outcomes of marginal zone lymphoma treated with ibrutinib in the first-line setting in USA: A Real World Analysis. Blood Adv 8(3): 549-552, Feb 2024.

 10a Rosenberg M, Poluch M, Thomas C, Sindaco P, Khoo A, Porcu P.: Hepatitis B Virus and B-cell lymphoma: evidence, unmet need, clinical impact, and opportunities. Front Oncol 13: 1275800, Oct 2023.

 2f5 Epperla, N., Zhao, Q., Chowdhury, S., Shea, L., Moyo, T., Reddy, N., Sheets, J., Weiner, D., Geethakumari, P., Kandarpa, M., Bruno, X., Thomas, C., Churnetski, M., Hsu, A., Zurbriggen, L., Tan, C., Lindsay, K., Maakaron, J., Caimi, P., Torka, P., Bello, C., Ayyappan, S., Karmali, R., Kim, S., Kress, A., Kothari, S., Sawalha, Y., Christian, B., David, K., Greenwell, I., Janakiram, M., Kenkre, V., Olszewski, A., Cohen, J., Palmisiano, N., Umyarova, E., Wilcox, R., Awan, F., Alderuccio, J., Barta, S., Grover, N., Ghosh, N., Bartlett, N., Herrera, A., Shouse, G.: Predictive factors and outcomes for ibrutinib in relapsed/refractory marginal zone lymphoma: a multicenter cohort study. J Hematol Oncol 2 29 15(1): 96, Jul 2022.

 1db Epperla N, Zhao Q, Karmali R, Torka P, Shea L, Oh TS, Anampa-Guzmán A, Reves H, Tavakkoli M, Greenwell IB, Hansinger E, Umyarova E, Annunzio K, Sawalha Y, Christian B, Thomas C, Barta SK, Geethakumari PR, Bartlett NL, Grover NS, Olszewski AJ.: Impact of detectable monoclonal protein at diagnosis on outcomes in marginal zone lymphoma: a multicenter cohort study. Blood Adv 7(17): 5038-5046, Sep 2023.

 2ab Epperla N, Zhao Q, Chowdhury SM, Shea L, Moyo TK, Reddy N, Sheets J, Weiner DM, Geethakumari PR, Kandarpa M, Bruno XJ, Thomas C, Churnetski MC, Hsu A, Zurbriggen L, Tan XC, Lindsey K, Maakaron J, Caimi PF, Torka P, Bello C, Ayyappan S, Oh TS, Karmali R, Kim SH, Kress A, Kothari S, Sawalha Y, Christian B, David KA, Greenwell IB, Janakiram M, Kenkre VP, Olszewski AJ, Cohen JB, Palmisiano N, Umyarova E, Wilcox RA, Awan FT, Alderuccio JP, Barta SK, Grover NS, Ghosh N, Bartlett NL, Herrera AF, Shouse G.: Postibrutinib relapse outcomes for patients with marginal zone lymphoma. Blood Adv 7(1): 88-91, Jan 2023.

 7b Colin Thomas, Sameep Thapa, Connor McLaughlin, Molly Halloran, Pierluigi Porcu. 83 : Point and counterpoint: polatuzumab vedotin in the front-line therapy for diffuse large b-cell lymphoma. Front Oncol 2 2c 12: 1098375. Jan 2023.

 6d Colin Thomas, Christine Kurian, Sarah Houtmann, Neil Palmisiano. 89 : Efficacy of half-day workshops for internal medicine interns in educating breaking-bad-news conversations. Palliat Med Rep 2 2d 2(1): 132-136, May 2021.

 10c Christine J Kurian, Colin Thomas, Sarah Houtmann, Thomas Klumpp, Adam Finn Binder.: Case report: concomitant diagnosis of plasma cell leukemia in patient with JAK2 positive myeloproliferative neoplasm. Front Oncol 2b 27: 10:1497. Aug 2020.

 187 Thomas, C., Ji, Y., Wu, C., Datz, H., Boyle, C., MacLeod, B., Patel, S., Ampofo, M., Currie, M., Harbin, J., Pechenkina, K., Lodhi, N., Johnson, S, Tulin, A.: Hit and run versus long-term activation of PARP-1 by its different domains fine-tunes nuclear processes. Proc Natl Acad Sci U S A 116(20): 9941-9946, May 2019.

 ca Colin Thomas, Yingbiao Ji, Niraj Lodhi, Elena Kotova, Aaron Dan Pinnola, Konstantin Golovine, Peter Makhov, Kate Pechenkina, Vladimir Kolenko, Alexei V Tulin. 77 : Non-NAD-like poly(ADP-ribose) polymerase-I inhibitors effectively eliminate cancer in vivo. EBioMedicine 29 13: 90-98, Nov 2016.

 92 Yingbiao Ji, Colin Thomas, Nikita Tulin, Niraj Lodhi, Ernest Boamah, Vladimir Kolenko, Alexei V Tulin. 73 : Charon mediates immune deficiency- driven PARP-I-dependent immune responses in drosophila. J Immunol 2 2e 197(6): 2382-9, Sep 2016.

 48 Colin Thomas, Sujana Movva a8 : Eribulin in the management of inoperable soft-tissue sarcoma: patient selection and survival. Onco Targets Ther 9: 9:5619-27, Sep 2016.

 48 Colin Thomas, Alexei V Tulin 5b : Poly-ADP-ribose polymerase: machinery for nuclear processes Mol Aspects Med 2e 34(6): 1124-37, Dec 2013.

 124 Colin J Thomas, Elena Kotova, Mark Andrake, Jared Adolf-Bryfogle, Robert Glaser, Catherine Regnard, Alexei V Tulin.: Kinase-mediated changes in nucleosome conformation trigger chromatin decondensation via poly- ADP-ribosylation. Mol Cell 2 2e 53(5): 831-42, Mar 2014.

 56 Colin Thomas, Elena Kotova, Alexei V Tulin 63 : PARP-I interaction with and activation by histones and nucleosomes. Methods Mol Biol 2 4d 1608: 255-267, 2017 Notes: 10.1007/978-1-4939-6993-7_17

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