Skip to main content

Advertisement

Log in

Frontline Therapy of Chronic Lymphocytic Leukemia: Changing Treatment Paradigm

  • Chronic Lymphocytic Leukemias (N Jain, Section Editors)
  • Published:
Current Hematologic Malignancy Reports Aims and scope Submit manuscript

Abstract

Purpose of Review

The treatment landscape of treatment-naive chronic lymphocytic leukemia (TN-CLL) is rapidly evolving. As more and more new drugs and combinations are becoming part of therapeutic armamentarium, it becomes highly pertinent to understand the evidence for each of the treatment options to select the right drug for the right patient. We summarize the recent data of the available frontline treatment options.

Recent Findings

The novel agents can overcome adverse biological attributes and provide long-term disease control. MRD may become a reliable surrogate for survival in the evaluation of future therapies. FCR still remains one of the best options in a young fit CLL with mutated IGVH. Long-term follow-up data of ibrutinib confirm its efficacy and safety in both high-risk and elderly TN-CLL patients. A combination of venetoclax with obinutuzumab has provided the hope of fixed-duration therapy and the potential for functional cure in TN-CLL. Several other trials testing the efficacy of other targeted agents and the optimal sequencing approaches are underway.

Summary

Chemoimmunotherapy holds its ground as an effective treatment in the IGVH-mutated CLL. The targeted agents either singly or in combination have become standard of care in many subsets of TN-CLL.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1

Similar content being viewed by others

References

Papers of particular interest, published recently, have been highlighted as: • Of importance •• Of major importance

  1. Siegel RL, Miller KD, Jemal A. Cancer statistics, 2020. CA Cancer J Clin. 2020;70(1):7–30. https://doi.org/10.3322/caac.21590.

    Article  PubMed  Google Scholar 

  2. Ruchlemer R, Polliack A. Geography, ethnicity and “roots” in chronic lymphocytic leukemia. Leukemia & Lymphoma. 2013;54(6):1142–50. https://doi.org/10.3109/10428194.2012.740670.

    Article  CAS  Google Scholar 

  3. Lad DP, Tejaswi V, Malhotra P, Varma N, Sachdeva MS, Naseem S, et al. Establishment of a comprehensive chronic lymphocytic leukemia clinic at a tertiary referral center in India. Blood Adv. 2018;2(Suppl 1):33–4. https://doi.org/10.1182/bloodadvances.2018GS110801.

    Article  PubMed  PubMed Central  Google Scholar 

  4. Eichhorst B, Hallek M. Prognostication of chronic lymphocytic leukemia in the era of new agents. Hematology Am Soc Hematol Educ Program. 2016;1:149–55. https://doi.org/10.1182/asheducation-2016.1.149.

    Article  Google Scholar 

  5. Del Giudice I, Raponi S, Della Starza I, et al. Minimal residual disease in chronic lymphocytic leukemia: a new goal? Front Oncol. 2019;9:689. https://doi.org/10.3389/fonc.2019.00689.

    Article  PubMed  PubMed Central  Google Scholar 

  6. Thompson PA, Strati P, Keating M, Obrien SM, Ferrajoli A, Burger JA, et al. Early achievement of MRD-negativity in IGHV-mutated (IGHV-M) patients portends highly favorable outcomes after first-line treatment of CLL with fludarabine, cyclophosphamide and rituximab (FCR). Serial monitoring for minimal residual disease (MRD) in blood after achieving MRD-negativity predicts subsequent clinical relapse. Blood. 2016;128(22):232. https://doi.org/10.1182/blood.V128.22.232.232.

    Article  Google Scholar 

  7. European Medicines Agency guideline on the use of minimal residual disease as an endpoint in chronic lymphocytic leukemia studies (2014) London: European Medicines Agency; available online at: http://www.ema.europa.eu/documents/scientific-guideline/guideline-use-minimal-residue-disease-endpoint-chronic-lymphocytic-leukaemia-studies_en.pdf. Accessed 11 Mar 2020

  8. • Kater AP, Seymour JF, Hillmen P, Eichhorst B, Langerak AW, Owen C, et al. Fixed duration of venetoclax-rituximab in relapsed/refractory chronic lymphocytic leukemia eradicates minimal residual disease and prolongs survival: post-treatment follow-up of the MURANO phase III study. J Clin Oncol. 2019;37(4):269–77. https://doi.org/10.1200/JCO.18.01580This trial suggested the feasibility of fixed duration of therapy in relapsed CLL in the era of novel agents.

    Article  CAS  PubMed  Google Scholar 

  9. Ferrer G, Montserrat E. Critical molecular pathways in CLL therapy. Mol Med. 2018;24:9. https://doi.org/10.1186/s10020-018-0001-1.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  10. •• Hallek M, Cheson BD, Catovsky D, Caligaris-Cappio F, Dighiero G, Döhner H, et al. iwCLL guidelines for diagnosis, indications for treatment, response assessment, and supportive management of CLL. Blood. 2018;131(25):2745–60. https://doi.org/10.1182/blood-2017-09-806398These guidelines are important for understanding the indication of therapy in CLL.

    Article  CAS  PubMed  Google Scholar 

  11. Chemotherapeutic options in chronic lymphocytic leukemia: a meta-analysis of the randomized trials. CLL Trialists’ Collaborative Group. J Natl Cancer Inst. 1999;91:861–8. https://doi.org/10.1093/jnci/91.10.861.

  12. Hoechstetter MA, Busch R, Eichhorst B, Bühler A, Winkler D, Eckart MJ, et al. Early, risk-adapted treatment with fludarabine in Binet stage A chronic lymphocytic leukemia patients: results of the CLL1 trial of the German CLL study group. Leukemia. 2017 Dec;31(12):2833–7. https://doi.org/10.1038/leu.2017.246.

    Article  CAS  PubMed  Google Scholar 

  13. Schweighofer CD, Cymbalista F, Müller C, Busch R, Porcher R, Langerbeins P, et al. Early versus deferred treatment with combined fludarabine, cyclophosphamide and rituximab (FCR) improves event-free survival in patients with high-risk Binet stage A chronic lymphocytic leukemia–first results of a randomized German-French cooperative phase III trial. Blood. 2013;122(21):524. https://doi.org/10.1182/blood.V122.21.524.524.

    Article  Google Scholar 

  14. Langerbeins P,Bahlo J, Rhein C, Gerwin H, Cramer P, Fürstenau M et al. Ibrutinib versus placebo in patients with asymptomatic, treatment-naïve early stage chronic lymphocytic leukemia (CLL): primary endpoint results of the phase 3 double-blind randomized CLL12 trial. EHA Library. Langerbeins P. 06/16/19; 273255; LB2602.

  15. Hallek M, Fischer K, Fingerle-Rowson G, Fink AM, Busch R, Mayer J, et al. Addition of rituximab to fludarabine and cyclophosphamide in patients with chronic lymphocytic leukaemia: a randomised, open-label, phase 3 trial. Lancet. 2010;376(9747):1164–74. https://doi.org/10.1016/S0140-6736(10)61381-5.

    Article  CAS  PubMed  Google Scholar 

  16. Fischer K, Bahlo J, Fink AM, Goede V, Herling CD, Cramer P, et al. Long-term remissions after FCR chemoimmunotherapy in previously untreated patients with CLL: updated results of the CLL8 trial. Blood. 2016;127(2):208–15. https://doi.org/10.1182/blood-2015-06-651125.

    Article  CAS  PubMed  Google Scholar 

  17. Thompson PA, Tam CS, O’Brien SM, Wierda WG, Stingo F, Plunkett W, et al. Fludarabine, cyclophosphamide, and rituximab treatment achieves long-term disease-free survival in IGHV-mutated chronic lymphocytic leukemia. Blood. 2016;127(3):303–9. https://doi.org/10.1182/blood-2015-09-667675.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  18. Fischer K, Cramer P, Busch R, Böttcher S, Bahlo J, Schubert J, et al. Bendamustine in combination with rituximab for previously untreated patients with chronic lymphocytic leukemia: a multicenter phase II trial of the German Chronic Lymphocytic Leukemia Study Group. J Clin Oncol. 2012;30(26):3209–16. https://doi.org/10.1200/JCO.2011.39.2688.

    Article  CAS  PubMed  Google Scholar 

  19. Eichhorst B, Fink A-M, Bahlo J, Busch R, Kovacs G, Maurer C, et al. First-line chemoimmunotherapy with bendamustine and rituximab versus fludarabine, cyclophosphamide, and rituximab in patients with advanced chronic lymphocytic leukaemia (CLL10): an international, open-label, randomised, phase 3, non-inferiority trial. Lancet Oncol. 2016;17(7):928–42. https://doi.org/10.1016/S1470-2045(16)30051-1.

    Article  CAS  PubMed  Google Scholar 

  20. Rai KR, Peterson BL, Appelbaum FR, Kolitz J, Elias L, Shepherd L, et al. Fludarabine compared with chlorambucil as primary therapy for chronic lymphocytic leukemia. N Engl J Med. 2000;343(24):1750–7. https://doi.org/10.1056/NEJM200012143432402.

    Article  CAS  PubMed  Google Scholar 

  21. Teeling JL, French RR, Cragg MS, van den Brakel J, Pluyter M, Huang H, et al. Characterization of new human CD20 monoclonal antibodies with potent cytolytic activity against non-Hodgkin lymphomas. Blood. 2004;104(6):1793–800. https://doi.org/10.1182/blood-2004-01-0039.

    Article  CAS  PubMed  Google Scholar 

  22. Bologna L, Gotti E, Da Roit F, Intermesoli T, Rambaldi A, Introna M, et al. Ofatumumab is more efficient than rituximab in lysing B chronic lymphocytic leukemia cells in whole blood and in combination with chemotherapy. J Immunol. 2013;190(1):231–9. https://doi.org/10.4049/jimmunol.1202645.

    Article  CAS  PubMed  Google Scholar 

  23. Okroj M, Eriksson I, Österborg A, Blom AM. Killing of CLL and NHL cells by rituximab and ofatumumab under limited availability of complement. Med Oncol. 2013;30(4):759. https://doi.org/10.1007/s12032-013-0759-5.

    Article  CAS  PubMed  Google Scholar 

  24. Hillmen P, Gribben JG, Follows GA, Milligan D, Sayala HA, Moreton P, et al. Rituximab plus chlorambucil as first-line treatment for chronic lymphocytic leukemia: final analysis of an open-label phase II study. J Clin Oncol. 2014;32(12):1236–41. https://doi.org/10.1200/JCO.2013.49.6547.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  25. Hillmen P, Robak T, Janssens A, Babu KG, Kloczko J, Grosicki S, et al. Chlorambucil plus ofatumumab versus chlorambucil alone in previously untreated patients with chronic lymphocytic leukaemia (COMPLEMENT 1): a randomised, multicentre, open-label phase 3 trial. Lancet. 2015;385(9980):1873–83. https://doi.org/10.1016/S0140-6736(15)60027-7.

    Article  CAS  PubMed  Google Scholar 

  26. • Offner F, Robak T, Janssens A, Kanakasetty GB, Kloczkao J, Grosicki S, et al. Long-term follow-up of previously untreated patients (pts) with chronic lymphocytic leukemia (CLL) treated with ofatumumab (OFA) and chlorambucil (CHL): final analysis of the phase 3 COMPLEMENT1trial. JClinOncol. 2019;37(15_suppl):7528. https://doi.org/10.1200/JCO.2019.37.15_suppl.7528This study provided the data regarding safety of the ofatumumab and chlorambucil; however, there was no survival benefit.

    Article  Google Scholar 

  27. Goede V, Fischer K, Busch R, Engelke A, Eichhorst B, Wendtner CM, et al. Obinutuzumab plus chlorambucil in patients with CLL and coexisting conditions. N Engl J Med. 2014;370(12):1101–10. https://doi.org/10.1056/NEJMoa1313984.

    Article  CAS  PubMed  Google Scholar 

  28. Alexander W. 23rd Congress of the European Hematology Association. P T. 2018;43(9):562–6.

    PubMed  PubMed Central  Google Scholar 

  29. Burger JA, Tedeschi A, Barr PM, Robak T, Owen C, Ghia P, et al. Ibrutinib as initial therapy for patients with chronic lymphocytic leukemia. N Engl J Med. 2015;373(25):2425–37. https://doi.org/10.1056/NEJMoa1509388.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  30. •• Burger JA, Barr PM, Robak T, Owen C, Ghia P, Tedeschi A, et al. Long-term efficacy and safety of first-line ibrutinib treatment for patients with CLL/SLL: 5 years of follow-up from the phase 3 RESONATE-2 study. Leukemia. 2020;34(3):787–98. https://doi.org/10.1038/s41375-019-0602-xThis study established the efficacy of ibrutinib as first line therapy in CLL even at long-term follow-up.

    Article  CAS  PubMed  Google Scholar 

  31. •• Moreno C, Greil R, Demirkan F, Tedeschi A, Anz B, Larratt L, et al. Ibrutinib plus obinutuzumab versus chlorambucil plus obinutuzumab in first-line treatment of chronic lymphocytic leukaemia (iLLUMINATE): a multicentre, randomised, open-label, phase 3 trial [published correction appears in Lancet Oncol. 2019 Jan;20(1):e10]. Lancet Oncol. 2019;20(1):43–56. https://doi.org/10.1016/S1470-2045(18)30788-5This study established another standard of care option for treatment-naive elderly CLL with comorbidities.

    Article  CAS  PubMed  Google Scholar 

  32. •• Woyach JA, Ruppert AS, Heerema NA, Zhao W, Booth AM, Ding W, et al. Ibrutinib regimens versus chemoimmunotherapy in older patients with untreated CLL. N Engl J Med. 2018;379(26):2517–28. https://doi.org/10.1056/NEJMoa1812836This study established ibrutinib as one of the options for young TN-CLL with unmutated IGVH.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  33. Sengar M, Gogtay N, Jain H. Ibrutinib regimens in older patients with untreated CLL. N Engl J Med. 2019;380(17):1679–81. https://doi.org/10.1056/NEJMc1901284.

    Article  PubMed  Google Scholar 

  34. • Shanafelt TD, Wang XV, Kay NE, Hanson CA, O’Brien S, Barrientos J, et al. Ibrutinib-rituximab or chemoimmunotherapy for chronic lymphocytic leukemia. N Engl J Med. 2019;381(5):432–43. https://doi.org/10.1056/NEJMoa1817073This study established efficacy of ibrutinib as compared with FCR young TN-CLL.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  35. Jain N, Thompson PA, Burger JA, Ferrajoli A, Takahashi K, Estrov ZE, et al. Ibrutinib, Fludarabine, Cyclophosphamide, and obinutuzumab (iFCG) for first-line treatment of IGHV-mutated CLL and without del(17p)/mutated TP53. Blood. 2019;134(Supplement_1):357. https://doi.org/10.1182/blood-2019-131939.

    Article  Google Scholar 

  36. •• Sharman JP, Banerji V, Fogliatto LM, Herishanu Y, Munir T, Walewska R, et al. ELEVATE TN: phase 3 study of acalabrutinib combined with obinutuzumab (O) or alone vs O plus chlorambucil (Clb) in patients (Pts) with treatment-naive chronic lymphocytic leukemia (CLL). Blood. 2019;13, 134(1). https://doi.org/10.1182/blood-2019-128404The early results from this study show high percentage of patients achieving MRD negative status after fixed duration of therapy.

  37. Hoellenriegel J, Meadows SA, Sivina M, Wierda WG, Kantarjian H, Keating MJ, et al. The phosphoinositide 3′-kinase delta inhibitor, CAL-101, inhibits B-cell receptor signaling and chemokine networks in chronic lymphocytic leukemia. Blood. 2011;118(13):3603–12. https://doi.org/10.1182/blood-2011-05-352492.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  38. Lampson BL, Kasar SN, Matos TR, Morgan EA, Rassenti L, Davids MS, et al. Idelalisib given front-line for treatment of chronic lymphocytic leukemia causes frequent immune-mediated hepatotoxicity. Blood. 2016;128(2):195–203. https://doi.org/10.1182/blood-2016-03-707133.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  39. Cory S, Roberts AW, Colman PM, Adams JM. Targeting BCL-2-like proteins to kill cancer cells. Trends Cancer. 2016;2(8):443–60. https://doi.org/10.1016/j.trecan.2016.07.001.

    Article  PubMed  Google Scholar 

  40. Souers AJ, Leverson JD, Boghaert ER, Ackler SL, Catron ND, Chen J, et al. ABT-199, a potent and selective BCL-2 inhibitor, achieves antitumor activity while sparing platelets. Nat Med. 2013;19(2):202–8. https://doi.org/10.1038/nm.3048.

    Article  CAS  PubMed  Google Scholar 

  41. Fischer K, Al-Sawaf O, Fink A-M, Dixon M, Bahlo J, Warburton S, et al. Venetoclax and obinutuzumab in chronic lymphocytic leukemia [published correction appears in Blood. 2017 Jul 13;130(2):232]. Blood. 2017;129(19):2702–5. https://doi.org/10.1182/blood-2017-01-761973.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  42. Stilgenbauer S, Eichhorst B, Schetelig J, Coutre S, Seymour JF, Munir T, et al. Venetoclax in relapsed or refractory chronic lymphocytic leukaemia with 17p deletion: a multicentre, open-label, phase 2 study. Lancet Oncol. 2016;17(6):768–78. https://doi.org/10.1016/S1470-2045(16)30019-5.

    Article  CAS  PubMed  Google Scholar 

  43. Seymour JF, Kipps TJ, Eichhorst B, Hillmen P, D’Rozario J, Assouline S, et al. Venetoclax-rituximab in relapsed or refractory chronic lymphocytic leukemia. N Engl J Med. 2018;378(12):1107–20. https://doi.org/10.1056/NEJMoa1713976.

    Article  CAS  PubMed  Google Scholar 

  44. •• Fischer K, Al-Sawaf O, Bahlo J, Fink A-M, Tandon M, Dixon M, et al. Venetoclax and obinutuzumab in patients with CLL and coexisting conditions. N Engl J Med. 2019;380(23):2225–36. https://doi.org/10.1056/NEJMoa1815281This study established another standard of care option for treatment-naive elderly CLL with comorbidities.

    Article  CAS  PubMed  Google Scholar 

  45. Tam CS, Siddiqi T, Allan JN, Kipps TJ, Flinn IW, Kuss BJ, et al. Ibrutinib (Ibr) plus venetoclax (ven) for first-line treatment of chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL): results from the MRD cohort of the phase 2 CAPTIVATE study. Blood. 2019 Nov;13:134(1). https://doi.org/10.1182/blood-2019-121424.

    Article  Google Scholar 

  46. Jain N, Keating MJ, Thompson PA, Ferrajoli A, Burger JA, Borthakur GM, et al. Combined ibrutinib and venetoclax for first-line treatment for patients with chronic lymphocytic leukemia (CLL). Blood. 2019;134, 34(Supplement 1). https://doi.org/10.1182/blood-2019-131847.

  47. Lampson BL, Tyekucheva S, Crombie JL, Kim AI, Merryman RW, Lowney J, et al. Preliminary safety and efficacy results from a phase 2 study of acalabrutinib, venetoclax and obinutuzumab in patients with previously untreated chronic lymphocytic leukemia (CLL). Blood. 2019;134(suppl 1). https://doi.org/10.1182/blood-2019-127506.

  48. James DF, Werner L, Brown JR, Wierda WG, Barrientos JC, Castro JE, et al. Lenalidomide and rituximab for the initial treatment of patients with chronic lymphocytic leukemia: a multicenter clinical-translational study from the chronic lymphocytic leukemia research consortium. J Clin Oncol. 2014;32(19):2067–73. https://doi.org/10.1200/JCO.2013.51.5890.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  49. Kharfan-Dabaja MA, Kumar A, Hamadani M, Stilgenbauer S, Ghia P, Anasetti C, et al. Clinical practice recommendations for use of allogeneic hematopoietic cell transplantation in chronic lymphocytic leukemia on behalf of the guidelines committee of the American Society for Blood and Marrow Transplantation. Biol Blood Marrow Transplant. 2016;22(12):2117–25. https://doi.org/10.1016/j.bbmt.2016.09.013.

    Article  PubMed  PubMed Central  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Manju Sengar.

Ethics declarations

Conflict of Interest

None

Human and Animal Rights and Informed Consent

This article does not contain any studies with human or animal subjects performed by any of the authors

Additional information

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

This article is part of the Topical Collection on Chronic Lymphocytic Leukemias

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Sengar, M., Jain, H., Rajendra, A. et al. Frontline Therapy of Chronic Lymphocytic Leukemia: Changing Treatment Paradigm. Curr Hematol Malig Rep 15, 168–176 (2020). https://doi.org/10.1007/s11899-020-00580-7

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11899-020-00580-7

Keywords

Navigation