Infection incidence, timing, and predictors in newly diagnosed multiple myeloma: a real-world retrospective cohort study - Report - MDSpire

Infection incidence, timing, and predictors in newly diagnosed multiple myeloma: a real-world retrospective cohort study

  • By

  • Ozlem Candan

  • Narmin Naghizada

  • Tekin Tuncel

  • Beyza Melek Palaz

  • Mustafa Alperen Tunc

  • Derya Demirtas

  • Ahmet Mert Yanik

  • Arda Bayar

  • Secil Salim

  • Fatma Temiz

  • Ceren Uzunoglu Guren

  • Fatma Arıkan

  • Meral Ulukoylu Menguc

  • Asu Fergun Yilmaz

  • Isik Atagunduz

  • Zekaver Odabası

  • Tayfur Toptas

  • Ayse Tulin Tuglular

  • May 14, 2026

  • 0 min

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Clinical Report: Infection Rates, Timing, and Predictive Factors in MM

Overview

Infections were observed in over half of newly diagnosed multiple myeloma patients, with a significant peak during the first three months of treatment. Key predictors of infection included advanced ISS stage, diabetes, and chronic kidney disease.

Background

Infections are a leading cause of morbidity and mortality in multiple myeloma (MM), particularly during the induction phase of treatment. Understanding infection trends and risk factors is crucial for developing effective preventive strategies. The high incidence of infections in this patient population underscores the need for targeted approaches to mitigate risks associated with immunosuppression.

Data Highlights

OutcomePercentagep-value
Infection Rate50.9%-
Peak Infection Rate (3 months)27.3%0.004
Pneumonia Incidence34.1%-

Key Findings

  • 50.9% of patients experienced infections within the first 6 months.
  • Peak infection occurrence was noted at 27.3% during the initial 3 months (p = 0.004).
  • Pneumonia was the most common infection, accounting for 34.1% of cases.
  • Independent risk factors for infection included advanced ISS stage (OR: 3.83), diabetes mellitus (OR: 3.64), and chronic kidney disease (OR: 6.01).
  • Lymphocyte levels were significantly reduced during febrile episodes (p = 0.040).
  • No significant differences were found between induction treatment protocols regarding infection rates.

Clinical Implications

Clinicians should prioritize infection prevention strategies, particularly for patients with advanced ISS stage, diabetes, or chronic kidney disease. Early identification of high-risk patients can facilitate timely interventions to reduce infection-related morbidity during the induction phase of treatment.

Conclusion

Infections pose a significant challenge in the management of multiple myeloma, particularly in the early treatment phase. Implementing risk-adjusted strategies based on clinical indicators can enhance patient outcomes.

Related Resources & Content

  1. Blood Cancer Journal, 2025 -- Increased Non-Clonal Plasma Cell Proportion at Diagnosis Correlates with Better Prognosis in Multiple Myeloma
  2. Blood Cancer Journal, 2015 -- Trends of survival in patients with multiple myeloma in Japan
  3. Blood Cancer Journal, 2023 -- Survival Outcomes in Multiple Myeloma: The Influence of Prognostic Factors Over Time
  4. the asco post, 2026 -- Targeted Therapies Drive Long-Term Decline in Multiple Myeloma Mortality in the United States
  5. EHA–EMN Evidence-Based Guidelines for diagnosis, treatment and follow-up of patients with multiple myeloma | Nature Reviews Clinical Oncology
  6. Risk factors for infections in patients with multiple myeloma: a systematic review and meta-analysis
  7. EHA–EMN Evidence-Based Guidelines for diagnosis, treatment and follow-up of patients with multiple myeloma
  8. Risk factors for infections in patients with multiple myeloma: a systematic review and meta-analysis
  9. Pneumococcal Vaccine Recommendations | Pneumococcal | CDC

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