How Early Can Checkpoint Inhibitors Induce a Complete Metabolic Response in Chemorefractory Hodgkin Lymphoma?

Georgopoulou, Angeliki N; Zerzi, Calliope; Samaras, Vaios; Rondogianni, Phivi; Vassilakopoulos, Theodoros P · Clin Nucl Med · 2024

case_report · Level V

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Abstract

A 24-year-old man with classical Hodgkin lymphoma was lost to follow-up after metabolic complete remission (mCR). He presented 4 years later with B-symptoms and impaired clinical condition. Relapsed classical Hodgkin lymphoma was diagnosed. PET/CT revealed stage IVB with liver and spleen involvement. Two liver function-adjusted salvage attempts were ineffective. Pembrolizumab was instituted with gradual clinical improvement. PET was missed before treatment for a life-threatening condition and was performed on day +10 showing a near mCR. A mCR was confirmed before cycle 2, on day +21, underlining-for the first time in the literature-the possibility to achieve very early mCR with pembrolizumab.

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