Real-world evaluation of teclistamab for the treatment of relapsed/refractory multiple myeloma (RRMM): an International Myeloma Working Group Study - Scorecard - MDSpire

Real-world evaluation of teclistamab for the treatment of relapsed/refractory multiple myeloma (RRMM): an International Myeloma Working Group Study

  • By

  • Carlyn Rose Tan

  • Sireesha Asoori

  • Chiung-Yu Huang

  • Larissa Brunaldi

  • Rakesh Popat

  • Efstathios Kastritis

  • Joaquin Martinez-Lopez

  • Radhika Bansal

  • Andre De Menezes Silva Corraes

  • Saurabh Chhabra

  • Ricardo Parrondo

  • Sikander Ailawadhi

  • Despina Fotiou

  • Meletios A. Dimopoulos

  • Kwee Yong

  • Catriona Mactier

  • Chris Lau

  • Magdalena Corona

  • Adolfo Jesús Sáez Marin

  • Hira Mian

  • Brian GM. Durie

  • Saad Z. Usmani

  • Thomas G. Martin

  • Yi Lin

  • April 3, 2025

  • 0 min

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Clinical Scorecard: Assessment of Teclistamab in Real-World Settings for Patients with Relapsed/Refractory Multiple Myeloma: Findings from an International Myeloma Working Group Investigation

At a Glance

CategoryDetail
ConditionRelapsed/Refractory Multiple Myeloma (RRMM)
Key MechanismsTeclistamab is a BCMAxCD3 bispecific antibody targeting B-cell maturation antigen and CD3 to engage T cells against myeloma cells
Target PopulationTriple-class-exposed patients with RRMM, including heavily pretreated and high-risk subgroups
Care SettingInternational academic centers with real-world clinical practice outside clinical trials

Key Highlights

  • Teclistamab demonstrated a 67% overall response rate (ORR) in a diverse real-world RRMM cohort, including patients ineligible for pivotal trials.
  • Common adverse events include cytokine release syndrome (CRS) mostly grade ≤2, immune effector cell-associated neurotoxicity syndrome (ICANS), and high rates of infections.
  • Real-world patients were heavily pretreated (median 6 prior lines), with 83% triple-class refractory and 44% penta-drug refractory; 71% would not meet MajesTEC-1 trial eligibility.

Guideline-Based Recommendations

Diagnosis

  • Assess RRMM status and prior treatment exposures including BCMA-directed therapies.
  • Evaluate cytogenetic risk abnormalities and extramedullary disease presence.
  • Use IMWG consensus criteria for response assessment.

Management

  • Administer teclistamab per FDA/EMA approved label and institutional protocols.
  • Monitor and manage CRS and ICANS using ASTCT criteria; most events are low grade and reversible.
  • Implement antimicrobial prophylaxis and supportive care tailored to patient risk and institutional guidelines.

Monitoring & Follow-up

  • Regularly assess for infections, cytopenias, CRS, and neurotoxicity.
  • Monitor immunoglobulin G (IgG) levels due to risk of hypogammaglobulinemia.
  • Use CTCAE v5.0 for grading adverse events outside CRS/ICANS.

Risks

  • High incidence of infections including grade 3/4 and opportunistic infections; infection-related mortality reported.
  • CRS occurs in over 70% of patients but is mostly low grade and manageable.
  • Potential for neurotoxicity (ICANS), generally low grade and reversible.

Patient & Prescribing Data

210 patients with RRMM treated at 9 international centers; median age 67 years; heavily pretreated with median 6 prior lines; 71% ineligible for MajesTEC-1 trial criteria.

Teclistamab shows efficacy with 67% ORR in real-world settings including patients with prior BCMA therapies and high-risk features; adverse events manageable with appropriate monitoring.

Clinical Best Practices

  • Careful patient selection and baseline assessment including renal function, cytogenetics, and performance status.
  • Close monitoring for CRS and ICANS with prompt intervention per established guidelines.
  • Proactive infection surveillance and management given high infection rates.
  • Consider dose modifications and supportive care individualized to patient tolerance and toxicity profile.
  • Use standardized response criteria and regular follow-up to assess treatment efficacy.

References

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