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Hematological Oncology· 2026Q1

Teclistamab Induced a Profound Hematologic Response in Light Chain Deposition Disease With Probable Cardiac Involvement

Xinyi Xiong, Danqing Zhao, Jian Li, Kaini Shen

Short summary

Teclistamab, a BCMA × CD3 bispecific antibody, achieved a rapid and sustained hematologic complete response in a patient with relapsed κ-light chain deposition disease (LCDD) and probable cardiac involvement.

AI-generated from the title and abstract; the full text is not read.

Key points

  • Teclistamab, a BCMA × CD3 bispecific antibody, was used as salvage therapy for relapsed κ-light chain deposition disease (LCDD).
  • The patient achieved a rapid and sustained hematologic complete response.
  • No cytokine release syndrome or neurotoxicity was observed.
  • Renal and cardiac functions remained stable during treatment.

AI-generated from the title and abstract; the full text is not read.

Abstract

We report the first case of using teclistamab, a BCMA × CD3 bispecific antibody, in a 63-year-old male with κ-light chain deposition disease (LCDD) involving the kidneys and probably the heart. The patient initially responded to daratumumab-pomalidomide-dexamethasone but experienced hematologic relapse. Salvage therapy with teclistamab induced a rapid and sustained hematologic complete response without cytokine release syndrome or neurotoxicity. Renal and cardiac functions remained stable. This case provides critical early evidence that BCMA-directed immunotherapy may serve as an effective salvage strategy for this rare plasma cell disorder, addressing a significant unmet therapeutic need.

The authors' abstract, as published at the source. Hematological Oncology, 2026 · DOI ↗

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Field: Hematology

HematologyMedicine