Talquetamab Multiple Myeloma: Impact, Evidence, and Policy Considerations

By Staff Writer

July 9, 2025

Talquetamab multiple myeloma is an emerging treatment option for adults with relapsed and refractory multiple myeloma (RRMM) who have progressed after at least three prior therapies. For patients facing limited options, how does talquetamab (marketed as Talvey®) compare to existing therapies, and what are its implications for policy, reimbursement, and patient care in the Netherlands? This overview addresses how talquetamab is positioned, summarizes recent evidence, and answers common questions for patients, clinicians, and policy stakeholders.

Summary: Key Recommendations and Relevance

Talquetamab offers a novel monotherapy for adults with RRMM who have been treated with an immunomodulatory drug, a proteasome inhibitor, and an anti-CD38 antibody, and whose disease continues to progress. Following a recent review, the Dutch National Health Care Institute (Zorginstituut Nederland) recommends the inclusion of talquetamab (Talvey®) in the basic health insurance package—provided its cost does not exceed that of teclistamab, another bispecific antibody therapy. This policy aims to improve treatment access while maintaining budget sustainability for this difficult-to-treat population. For in-depth insights, explore the official policy analysis on talquetamab and related therapies.

Clinical Context and Mechanism

What makes talquetamab relevant in multiple myeloma treatment today?

  • Indication and Target Population:
    Talquetamab is approved in the Netherlands for adults with relapsed and refractory multiple myeloma who have undergone at least three prior lines of treatment, mirroring eligibility criteria for teclistamab. This group includes many who have exhausted standard therapies and have limited alternatives.
  • Mechanism of Action:
    Talquetamab is a GPRC5D-targeted bispecific antibody. By binding both to GPRC5D on myeloma cells and CD3 on T cells, it redirects the immune system to attack malignant plasma cells, representing an immunotherapy advance for RRMM.
  • Therapeutic Alternatives and Guideline Context:
    After failure of immunomodulators, proteasome inhibitors, and anti-CD38 antibodies, no preferred regimen is universally recommended; choices are tailored by physicians based on previous treatments, patient health, and emerging evidence. Bispecifics, including talquetamab and teclistamab, fill a critical gap for this triple-class–refractory group.

Evidence Review: Efficacy, Safety & Quality of Life

A closer review of recent studies informs talquetamab’s clinical impact in multiple myeloma:

  • Efficacy:
    There are no head-to-head randomized controlled trials (RCTs) comparing talquetamab to teclistamab or standard regimens. However, indirect comparisons, notably from the pivotal MonumenTal-1 trial, suggest:

    • Overall Survival (OS): Hazard ratio (HR) for OS was 0.37 (95% CI: 0.23–0.60) versus real-world controls
    • Progression-Free Survival (PFS): HR of 0.40 (95% CI: 0.29–0.56)
      The median OS was not reached for talquetamab at 12.7 months, compared to 10.3 months for controls.
    • Response and Quality of Life: Patients taking talquetamab report modest improvements in pain and fatigue scores versus standard “physician’s choice” regimens, where quality of life typically declines with disease progression.
  • Safety Considerations:
    Like other bispecific antibodies, talquetamab carries risks for

    • Cytokine release syndrome
    • Hematologic toxicity (cytopenias)
    • Increased risk of infections
      Adverse events are frequent and may be severe, underlining the need for vigilant monitoring.

Health Policy, Cost, and Budget Impact

What is the economic impact of talquetamab’s adoption in the Dutch healthcare system?

  • Policy Decision:
    The Dutch National Health Care Institute will reimburse talquetamab only if total spending does not rise above that of teclistamab, reflecting serious concerns over cost-effectiveness and system sustainability.
  • Budget Analysis:
    • Estimated per-patient costs (indicative figures):
      • Talquetamab: €211,831
      • Elranatamab: €151,509
      • Teclistamab: €147,581–€162,196 (dose-dependent)
    • Ongoing price negotiations and post-authorization monitoring are required to ensure value for patients and payers.
  • Access and Equity:
    Integrating talquetamab into the national reimbursement scheme increases options and potentially improves outcomes for a high-need population historically facing poor prognosis.
  • Evidence Gaps & Uncertainty:
    Decisions rely on low-certainty, indirect evidence due to absent RCTs. There is an ongoing need for real-world data collection, head-to-head comparative studies, and post-marketing surveillance to clarify long-term effectiveness, safety, and optimal sequencing with other novel agents (such as after CAR-T or other bispecifics).

Implications for Health Economics and Research

  • Outcome Priorities:
    Health technology assessment will increasingly consider not just survival, but patient-reported outcomes (PROs), symptom control, toxicity, and functional status in evaluating novel myeloma therapies.
  • Research Needs:
    As the myeloma treatment landscape evolves, robust evidence from pragmatic trials and real-world registries will be crucial to refining the role of agents like talquetamab multiple myeloma and informing future policy.

Frequently Asked Questions (FAQ)

1. What is talquetamab and how does it work in multiple myeloma?
Talquetamab (Talvey®) is a bispecific antibody targeting GPRC5D on malignant plasma cells and CD3 on T-cells. It prompts T-cell–mediated cytotoxicity specifically against myeloma cells, offering a new line of therapy for adults who have failed multiple previous treatments.

2. How does talquetamab compare to teclistamab and other current therapies?
Clinical studies indicate talquetamab may offer similar efficacy and safety to teclistamab, improving outcomes over standard physician-selected regimens. However, full comparative data are lacking and further research is needed.

3. What are the main cost and reimbursement considerations for talquetamab?
Talquetamab’s reimbursement is conditional on its price not exceeding teclistamab, and its higher per-patient drug cost underscores the importance of cost-effectiveness and ongoing monitoring of real-world use.

4. Where can I find the official health policy recommendations and supporting data?
Full details, assessments, and evidence reviews are available in the official Dutch policy report on talquetamab, teclistamab, and elranatamab for multiple myeloma.

Conclusion and Further Reading

Talquetamab multiple myeloma represents a promising yet still evolving option for relapsed/refractory patients with few alternatives. While access is expanding under strict budget-conscious guidelines, ongoing research and post-market data will shape its long-term role. To build deeper topical knowledge, readers are encouraged to review related updates on bispecific antibodies, health technology assessment developments, and post-marketing surveillance strategies in hematologic malignancies.

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