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Effectiveness, safety and cost analysis of dalbavancin in clinical practice
  1. Maria Arrieta-Loitegui1,
  2. Jose Manuel Caro-Teller1,
  3. Sara Ortiz-Pérez1,
  4. Francisco López-Medrano2,
  5. Rafael San Juan-Garrido2,
  6. Jose Miguel Ferrari-Piquero1
  1. 1Pharmacy, Hospital Universitario 12 de Octubre, Madrid, Spain
  2. 2Unit of Infectious Diseases, Hospital Universitario 12 de Octubre, Madrid, Spain
  1. Correspondence to Dr Maria Arrieta-Loitegui, Pharmacy, Hospital Universitario 12 de Octubre, Madrid 28041, Spain; maria.arrieta{at}salud.madrid.org

Abstract

Objectives Dalbavancin is approved for the treatment of complicated skin and soft tissue infections. However, there is growing evidence that other gram-positive infections could be treated with this antibiotic. A study was undertaken in a tertiary hospital in Spain to evaluate the effectiveness and safety of dalbavancin in off-label indications and the potential healthcare cost savings.

Methods A retrospective observational study including all patients treated with dalbavancin in our hospital from October 2016 to August 2019 was carried out. Demographic, clinical and safety variables were collected. Effectiveness was assessed using the clinical and microbiological resolution of the infection and the absence of hospital admissions due to the same infection in the following 3 months.

Results A total of 102 patients were included (69.9% men, n=71; median age 72.5 years (range 56.0–84.0)). Treatment was off label in 71 cases (69.6%). The most frequent off-label indications were catheter-related bacteraemia (15.7%, n=16) and endocarditis (13.6%, n=14). All patients had previously received antibiotics. The main reason for switching to dalbavancin was patient discharge (79.4%, n=81). Dalbavancin was administered during hospitalisation in 66.7% of the patients and in the outpatient setting in 13.7%. The median reduction in length of hospital stay was 14 days per patient. A saving of about 4550 Euros per patient was estimated. 89 patients (93.7%) had clinical and microbiological resolution of the infection at the end of the study. One patient did not finish the dalbavancin infusion due to an allergic reaction.

Conclusions Our results suggest that dalbavancin is a safe and effective alternative to the off-label treatment of gram-positive infections. Its dosage facilitates early discharge and outpatient management of these patients.

  • infectious diseases
  • pharmacoeconomics
  • clinical pharmacy
  • statistics & research methods
  • side effects of drugs
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