Real-world safety of rapid 30-minute intravenous isatuximab infusion in multiple myeloma: results from the largest published cohort - Report - MDSpire

Real-world safety of rapid 30-minute intravenous isatuximab infusion in multiple myeloma: results from the largest published cohort

  • By

  • Xabier Gutiérrez López De Ocáriz

  • Ernesto Pérez Persona

  • Laura Salcedo Cuesta

  • Eusebio Martín Chacón

  • Maialen Sirvent Auzmendi

  • Pamela Millacoy Austerrritt

  • Marcos Lorenzo Pérez

  • Elena Landete Hernández

  • Vicente Carrasco Baraja

  • Irene Sanchéz Romero

  • Tania Ivett Arámbula

  • Ianire Etxeguren Urkixo

  • July 9, 2026

  • 0 min

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Clinical Report: Safety Profile of a 30-Minute Intravenous Isatuximab Infusion

Overview

This study evaluates the safety of a rapid 30-minute intravenous infusion of isatuximab in patients with multiple myeloma. The findings indicate a low incidence of infusion-related reactions (IRRs).

Background

Isatuximab is a key treatment for multiple myeloma, traditionally requiring a lengthy infusion time of at least 75 minutes. The burden of this extended administration impacts patient experience and healthcare resources. This study presents data on a rapid 30-minute infusion protocol.

Data Highlights

ParameterValue
Total Patients103
Median Age66 years
Infusions Administered1,344
IRR per Patient Rate0.97% (95% CI: 0.17%–5.30%)
IRR per Infusion Rate0.074% (95% CI: 0.013%–0.420%)
Cumulative Chair Time Savings1,008 hours

Key Findings

  • Only 1 infusion-related reaction (IRR) was recorded among 1,344 rapid infusions.
  • Per-patient IRR rate was 0.97%, while per-infusion rate was 0.074%.
  • 21 out of 22 patients with prior IRRs completed the rapid infusion protocol without reverting to standard rates.
  • No patients permanently discontinued isatuximab due to IRRs.

Clinical Implications

The findings suggest that a rapid 30-minute infusion of isatuximab is safe, even for patients with a history of IRRs. This approach can enhance patient throughput and reduce resource utilization in clinical settings.

Conclusion

The study presents data on a rapid 30-minute infusion protocol for isatuximab in multiple myeloma.

Related Resources & Content

  1. Blood Cancer Journal, 2025 -- Assessment of the safety and effectiveness of subcutaneous isatuximab combined with carfilzomib and dexamethasone in individuals with relapsed/refractory multiple myeloma: findings from the Phase 2 IZALCO trial
  2. Blood Cancer Journal, 2021 -- A Phase 2 Trial Evaluating Isatuximab as Monotherapy in Daratumumab-Refractory Multiple Myeloma Patients
  3. Blood Cancer Journal, 2022 -- Results of the MUKeight Phase II Randomized Controlled Trial on Ixazomib Combined with Cyclophosphamide and Dexamethasone for Relapsed or Refractory Myeloma
  4. New England Journal of Medicine, 2024 -- Isatuximab, Bortezomib, Lenalidomide, and Dexamethasone for Multiple Myeloma
  5. Medicines.org.uk -- SARCLISA 20 mg/mL concentrate for solution for infusion - Summary of Product Characteristics (SmPC)
  6. the asco post — Maintenance Therapy After Induction With RVd With or Without Isatuximab in Transplant-Eligible Newly Diagnosed Multiple Myeloma
  7. 30‐Minute infusion of isatuximab in patients with newly diagnosed multiple myeloma: Results of a Phase 1b study analysis
  8. Isatuximab, Bortezomib, Lenalidomide, and Dexamethasone for Multiple Myeloma | New England Journal of Medicine
  9. SARCLISA 20 mg/mL concentrate for solution for infusion - Summary of Product Characteristics (SmPC) - (emc) | 14817

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