Supplement Table 1: Disease characteristics of CML in patient with dual malignancies Pt no CML occurring as primary/ secondary 1 Primary 2 Primary 3 Primary 4 Primary 5 Primary 6 Primary 7 Primary 8 Primary 9 Synchronous 10 Synchronous 11 Synchronous 12 Secondary 13 Secondary 14 Secondary 15 Secondary Age at diagnosis of CML 47 25 58 62 65 50 45 25 62 32 66 44 37 58 51 Sex CML diagnosis month/years M 12/1992 Hydroxyurea Duration of treatment before imatinib (months) 48 IFN Alpha 120 Treatment before imatinib CML status at diagnosis Dose of imatinib Best imatinib response Duration of imatinib (m) Overall duration of CML (m) Status of cml at last followup CP 400mg MMRMR4.5 156 276 CMR F 4/2004 Hydroxyurea 3 CP 400mg X 12m 800 mg X 7m CCyR 21 25 Died due to BC F 5/2007 Hydroxyurea 2 CP 400 mg MMR – MR3 72 74 LFU Since 9.5.13 F 1/2008 Hydroxyurea 2 AP 600 mg X 31m 800 mg X 27m CCyR 58 60 Died due to BC M 11/2008 Hydroxyurea 7 CP 400mg CCyR 70 77 CCyR F 1/2011 Hydroxyurea 5 CP 400 mg CCyR 43 48 CCyR F 4/2011 Hydroxyurea 2 AP 600mg MMR- MR4 46 48 CMR F 4/2011 Hydroxyurea 3 CP 400mg MMR- MR4 43 46 CMR M 11/2007 Hydroxyurea 0.5 CP 400 mg CCyR 87.5 88 CCyR F 4/2014 Hydroxyurea 0.75 CP 400mg MMR-MR4 12 12 CMR M 8/2014 No Drugs Not applicable CP 400 mg MMRMR4.5 8 8 CMR F 10/2008 Hydroxyurea 1 CP 400 mg MMR-MR4.5 76 77 CMR M 4/2011 Hydroxyurea 0.5 CP CCyR 45.5 46 CCyR F 6/2014 Hydroxyurea 1 CP CHR 9 10 CHR F 11/2014 Hydroxyurea 0.5 CP CHR 3.5 4 CHR 400 mg X 24m 600mg X 22m 400 mg X 7m 600mg x 3m 400 mg M- Male; F- Female; CP – Chronic phase, AP – Accelerated phase, CCyR – Complete cytogenetic remission, CHR – complete haematological remission, MMR – major molecular remission (molecular remission status defined based on ELN criteria), LFU – Lost to follow up, BC – blast crisis Supplement Table 2: Synchronous Malignancies With CML Author Publication type year Age / sex CML phase Second malignancy Bekkenk et al(1) Case report 2003 70/M Chronic EBV positive cutaneous B cell lymphoma Bahl et al (2) Case report 2010 45/M Chronic Carcinoma Breast Abhijeet et al (3) Case report 2014 52 /M Chronic Carcinoma Penis Supplement Table 3: Metachronous Malignancies In CML Patients: Pre-Imatinib Era Publication type Author Year of publication Number of CML cases Number of SM Interferon duration Case report Montefusco et al(4) 1993 - T-ALCL NA Case series Ichinohasama et al (5) 1999 - 2 (DLBCL, ALCL) NA Prospective Kolb et al(6) 1999 1036 ( post BMT) 53 NA Retrospective Bhatia et al(7) 2001 392 6 (All either cervical/oral) NA RCT Hehlmann et al(8) 2003 376 8 NA Correspondence Roy et al(9) 2005 189 6 (1 Bladder, 4 Prostate ) 5-96 months Retrospective Ishibe et al(10) 2006 8005 334 NA Retrospective Rizzo et al(11) 2009 7594 189 NA Population based Rebora et al(12) 2010 2735 145 NA Retrospective Majhail et al (13) 2011 2576 44 NA SM – Secondary malignancy; CML – chronic myeloid leukaemia; Supplement Table 4: Metachronous Malignancies In CML Patients: Post-Imatinib Era Publication Type Author Published (year) Total CML (n) Total SM (n) Median follow up (months) Type of SM Median Imatinib (months) Case report Chee et al(14) 2003 - 1 NA tMDS ( post-transplant) 9 Case report Mozziconacci et al(15) 2003 - 1 NA tMDS ( post-transplant) 19 Case series Baskaynak et al (16) 2003 - 2 17/164* Cutaneous Squamous Cell Carcinoma 17/36 Case report Rodler et al(17) 2004 1 1 Mantle Cell Lymphoma 36 Correspondence Roy et al(9) 2005 189 6 60 31.2 Epidemiological Pilot et al (18) 2005 9518 110 NA 16-Prostate, 2-Bladder, 3-Kidney NA Retrospective Voglova et al (19) 2010 1038 35 51* NA 32 Case series Budrukkar et al(20) 2011 - 7 14^ All head and neck cancers NA Retrospective Verma et al(21) 2011 1445 56 107* NA 39 Case series Duman et al (22) 2012 - 7 2-NHL, 1-Colon, 1-Stomach, 1- Lung SCC, 1-Dermatofibroma, 1-Thyroid Papillary NA Retrospective Yoshimoto et al(23) 2014 52 6 Stomach, liver, MM, Brain, Colon, lung, vulva 132 Retrospective Binay et al (24) 2014 8551 473 Case series Helbig et al(25) 2015 221 8 132 13 NA 1-Endometrium, 1-Testis, 1-Lung, 1-Skin, 1-Colon, 1-Bladder, 1-Breast, 1-Prostate 61 NA – Not available Supplement Table 5 : Postulations of how imatinib can cause secondary malignancies Decreasing NK cell activity following imatinib therapy making individuals prone to development of other malignancies (3). Concurrent exposure to tobacco and alcohol increases the likelihood of developing secondary head and neck malignancies (20). Acquiring additional cytogenetic abnormalities in patients on imatinib with CML in complete remission suggests role in carcinogenesis (26). Imatinib might inhibit other tyrosine kinases which are negative regulators of various cycle processes involved in stringent regulation of cell proliferation (27). Inhibitory impact of TKI (Imatinib) on dendritic cell and T cell stimulation (28, 29) Inhibition of C-abl kinases which have a role in potentiating apoptosis of DNA damaged cells (25). REFERENCES 1. Bekkenk MW, Vermeer MH, Meijer CJ, Jansen PM, Middeldorp JM, Stevens SJ, et al. EBV-positive cutaneous B-cell lymphoproliferative disease after imatinib mesylate. Blood. [Case Reports Letter]. 2003 Dec 1;102(12):4243. 2. Bahl A, Dhiman A, Talwar V, Doval DC. Synchronous carcinoma breast with chronic myelogenous leukemia: a rare presentation. Indian journal of cancer. [Case Reports Letter]. 2010 Oct-Dec;47(4):477-9. 3. Ganapule AP, Tavaavaava VS, Kumar RM, T JN, Viswabandya A. Synchronous presentation of chronic myeloid leukemia with carcinoma penis: a rare presentation. Journal of clinical and diagnostic research : JCDR. 2014 Sep;8(9):QD01-2. 4. Montefusco E, Lo Coco F, Burgio VL, Rondinelli B, Di Giorgio G, Mancini M, et al. Occurrence of a Ki-1-positive anaplastic large-cell lymphoma in a patient with Ph' positive chronic myelogenous leukemia successfully treated by alpha-interferon. Leukemia. [Case Reports]. 1993 Nov;7(11):1896-9. 5. Ichinohasama R, Miura I, Takahashi N, Sugawara T, Tamate E, Endoh K, et al. Ph-negative non-Hodgkin's lymphoma occurring in chronic phase of Ph-positive chronic myelogenous leukemia is defined as a genetically different neoplasm from extramedullary localized blast crisis: report of two cases and review of the literature. Leukemia. [Case Reports Research Support, Non-U.S. Gov't Review]. 2000 Jan;14(1):169-82. 6. Kolb HJ, Socie G, Duell T, Van Lint MT, Tichelli A, Apperley JF, et al. Malignant neoplasms in long-term survivors of bone marrow transplantation. Late Effects Working Party of the European Cooperative Group for Blood and Marrow Transplantation and the European Late Effect Project Group. Annals of internal medicine. [Research Support, Non-U.S. Gov't]. 1999 Nov 16;131(10):738-44. 7. Bhatia S, Louie AD, Bhatia R, O'Donnell MR, Fung H, Kashyap A, et al. Solid cancers after bone marrow transplantation. Journal of clinical oncology : official journal of the American Society of Clinical Oncology. [Research Support, U.S. Gov't, P.H.S.]. 2001 Jan 15;19(2):464-71. 8. Hehlmann R, Berger U, Pfirrmann M, Hochhaus A, Metzgeroth G, Maywald O, et al. Randomized comparison of interferon alpha and hydroxyurea with hydroxyurea monotherapy in chronic myeloid leukemia (CML-study II): prolongation of survival by the combination of interferon alpha and hydroxyurea. Leukemia. [Clinical Trial Clinical Trial, Phase II Comparative Study Randomized Controlled Trial Research Support, Non-U.S. Gov't]. 2003 Aug;17(8):1529-37. 9. Roy L, Guilhot J, Martineau G, Larchee R, Guilhot F. Unexpected occurrence of second malignancies in patients treated with interferon followed by imatinib mesylate for chronic myelogenous leukemia. Leukemia. [Letter]. 2005 Sep;19(9):1689-92. 10. Stein BL. Chronic myeloid leukemia and risk of second malignancy in two eras of treatment. Leukemia & lymphoma. [Comment]. 2012 Sep;53(9):1651-3. 11. Rizzo JD, Curtis RE, Socie G, Sobocinski KA, Gilbert E, Landgren O, et al. Solid cancers after allogeneic hematopoietic cell transplantation. Blood. [Multicenter Study Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Research Support, U.S. Gov't, P.H.S.]. 2009 Jan 29;113(5):1175-83. 12. Rebora P, Czene K, Antolini L, Gambacorti Passerini C, Reilly M, Valsecchi MG. Are chronic myeloid leukemia patients more at risk for second malignancies? A population-based study. American journal of epidemiology. [Research Support, Non-U.S. Gov't]. 2010 Nov 1;172(9):1028-33. 13. Majhail NS, Brazauskas R, Rizzo JD, Sobecks RM, Wang Z, Horowitz MM, et al. Secondary solid cancers after allogeneic hematopoietic cell transplantation using busulfan-cyclophosphamide conditioning. Blood. [Comparative Study Research Support, N.I.H., Extramural Research Support, U.S. Gov't, Non-P.H.S. Research Support, U.S. Gov't, P.H.S.]. 2011 Jan 6;117(1):316-22. 14. Chee YL, Vickers MA, Stevenson D, Holyoake TL, Culligan DJ. Fatal myelodysplastic syndrome developing during therapy with imatinib mesylate and characterised by the emergence of complex Philadelphia negative clones. Leukemia. [Case Reports Comment Letter]. 2003 Mar;17(3):634-5. 15. Mozziconacci MJ, Cailleres S, Maurice C, Vey N, Sainty D, Blaise D, et al. Myelodysplastic features developing in Philadephia-negative cells during imatinib mesylate therapy for CML: report of a new case. Leukemia. [Case Reports Comment Letter]. 2003 Sep;17(9):1901-2. 16. Baskaynak G, Kreuzer KA, Schwarz M, Zuber J, Audring H, Riess H, et al. Squamous cutaneous epithelial cell carcinoma in two CML patients with progressive disease under imatinib treatment. European journal of haematology. [Case Reports Research Support, Non-U.S. Gov't]. 2003 Apr;70(4):231-4. 17. Rodler E, Welborn J, Hatcher S, Unger K, Larkin E, Gumerlock PH, et al. Blastic mantle cell lymphoma developing concurrently in a patient with chronic myelogenous leukemia and a review of the literature. American journal of hematology. [Case Reports Research Support, U.S. Gov't, P.H.S. Review]. 2004 Apr;75(4):231-8. 18. Pilot PR, Sablinska K, Owen S, Hatfield A. Epidemiological analysis of second primary malignancies in more than 9500 patients treated with imatinib. Leukemia. [Comment Letter]. 2006 Jan;20(1):148; author reply 9. 19. Voglova J, Muzik J, Faber E, Zackova D, Klamova H, Steinerova K, et al. Incidence of second malignancies during treatment of chronic myeloid leukemia with tyrosine kinase inhibitors in the Czech Republic and Slovakia. Neoplasma. [Research Support, Non-U.S. Gov't]. 2011;58(3):256-62. 20. Budrukkar A, Muttagi S, Shahid T, Chatturvedi P, Banavali S, Laskar SG, et al. Second primary head and neck squamous cell cancers with aggressive behavior in patients with chronic myeloid leukaemia. The British journal of oral & maxillofacial surgery. 2012 Sep;50(6):504-7. 21. Verma D, Kantarjian H, Strom SS, Rios MB, Jabbour E, Quintas-Cardama A, et al. Malignancies occurring during therapy with tyrosine kinase inhibitors (TKIs) for chronic myeloid leukemia (CML) and other hematologic malignancies. Blood. [Research Support, N.I.H., Extramural]. 2011 Oct 20;118(16):4353-8. 22. Duman BB, Paydas S, Disel U, Besen A, Gurkan E. Secondary malignancy after imatinib therapy: eight cases and review of the literature. Leukemia & lymphoma. [Case Reports Review]. 2012 Sep;53(9):1706-8. 23. Togasaki-Yoshimoto E, Shono K, Onoda M, Yokota A. The occurrence of second neoplasms after treatment with tyrosine kinase inhibitors for chronic myeloid leukemia. Leukemia & lymphoma. [Letter]. 2014 Feb;55(2):453-6. 24. Shah BK, Ghimire KB. Second primary malignancies in chronic myeloid leukemia. Indian journal of hematology & blood transfusion : an official journal of Indian Society of Hematology and Blood Transfusion. 2014 Dec;30(4):236-40. 25. Helbig G, Bober G, Seweryn M, Wichary R, Tukiendorf A, Sedlak L, et al. Occurrence of secondary malignancies in chronic myeloid leukemia during therapy with imatinib mesylate-single institution experience. Mediterranean journal of hematology and infectious diseases. 2015;7(1):e2015003. 26. O'Dwyer ME, Gatter KM, Loriaux M, Druker BJ, Olson SB, Magenis RE, et al. Demonstration of Philadelphia chromosome negative abnormal clones in patients with chronic myelogenous leukemia during major cytogenetic responses induced by imatinib mesylate. Leukemia. 2003 Mar;17(3):481-7. 27. Garzia M, Sora F, Teofili L, Di Mario A, Voso MT, Rumi C, et al. Blastoid mantle cell lymphoma occurring in a patient in complete remission of chronic myelogenous leukemia. Laboratory hematology : official publication of the International Society for Laboratory Hematology. [Case Reports]. 2007;13(1):30-3. 28. Appel S, Balabanov S, Brummendorf TH, Brossart P. Effects of imatinib on normal hematopoiesis and immune activation. Stem Cells. [Review]. 2005 Sep;23(8):1082-8. 29. Seggewiss R, Price DA, Purbhoo MA. Immunomodulatory effects of imatinib and second-generation tyrosine kinase inhibitors on T cells and dendritic cells: an update. Cytotherapy. [Review]. 2008;10(6):633-41.