A 68-Year-Old Man With Mantle Cell Lymphoma

Video

Recommendations for treating a 68-year-old male with mantle cell lymphoma with a BTK inhibitor once he has relapsed on prior therapy.

Case: A 68-Year-Old Male with Mantle Cell Lymphoma

Initial presentation

  • A 68-year-old man presented with generalized lymphadenopathy, fatigue and an unintentional 8-lb weight loss
  • PMH: HTN, medically controlled
  • PE: abdominal distention, splenomegaly

Clinical workup

  • LDH 345 U/I, ANC 3500/mm3, beta-2-microglobulin 4.4 µg/L, leukocytes, 5.98 X 109/L, hemoglobin 9.6 gm/dL
  • FISH: t (11;14)
  • Immunocytochemistry: cyclin D1+, CD5+, CD20++
  • BMB positive for lymphoid cells with cyclin D1
  • PET/CT scan showed widespread lymphadenopathy in numerous nodal regions including left mesenteric (3.4 cm), bilateral axillary (3.9 cm, 5.3 cm), and cervical (5.1 cm)
  • Ann Arbor stage IV; MIPI score 6.3; ECOG PS 1

Treatment

  • Patient was started on bendamustine + rituximab
    • Achieved PR
    • Continued on maintenance rituximab q8W
  • At 9 months the patient had clinical disease relapse
    • He was started on ibrutinib 560 mg PO qDay
    • Imaging at 12-week follow-up showed no evidence of disease

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