AT- HOME study

A two-step Approach for outpatient parenteral antimicrobial Therapy with vancomycin: model-based dosing and non-invasive sampling vs. traditional tHerapeutic drug mOnitoring to reduce healthcare contacts and iMprove patients’ and carEgivers’ satisfaction

Financed by : Consejería de Presidencia, Sanidad y Emergencias de la Junta de Andalucía

Program: THCS – Joint Transnational Call 2025 “Better care closer to home: Enhancing primary and community care”

Project National Reference: HOR-2026-05

Role in the project: Partner

Duration: April 2026- March 2029

 

Contact: Ana María Ortega-Prieto

Implementation Centre: IBIMA Plataforma BIONAND

Research group of IBIMA involved: Immune Response to Viral Infections Research Group

Abstract

For patients with severe resistant infections in Europe, the patient-centred pathway includes outpatient parenteral antimicrobial therapy (OPAT) at home, supervised by nurses (H-OPAT), which moves care from the hospital closer to home. However, for several antibiotics, H-OPAT still requires frequent hospital visits for traditional therapeutic drug monitoring (TDM), to keep drug levels within the target range. TDM causes logistical burdens and avoidable costs, and discomfort for patients, who must travel and undergo venipuncture. In addition, TDM-based dose adjustments are often an “educated guess”, which leads to suboptimal antibiotic exposure and more healthcare needs.

To make H-OPAT a truly de-institutionalised treatment without lowering the quality of care, a transformative solution is needed that improves antibiotic dosing and monitoring and removes the need for hospital visits. The AT-HOME consortium of academic hospitals, nursing organisations and industry, with the support of patients, will evaluate whether H-OPAT with vancomycin can become more efficient, effective and sustainable by integrating two elements:

  • Model-informed precision dosing (MIPD): validated pharmacometric models based on patient-specific factors to optimise dosing and achieve better antibiotic exposure.
  • Dried blood spot (DBS) sampling: a minimally invasive method based on a finger prick, performed at home by the patient after training by nurses, which reduces patient burden, travel and hospital visits.

The project expects this improved H-OPAT to lead to better patient outcomes and satisfaction, fewer healthcare contacts and lower costs. Building on its findings, including the barriers and facilitators for implementation, AT-HOME aims to bring the improved H-OPAT for vancomycin and other antibiotics into clinical practice in Belgium, Sweden, Spain and the Netherlands, and to promote its upscaling across Europe.

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Aknowledgment

The project has received funding from Consejería de Salud y Consumo de la Junta de Andalucía (REF: HOR-2026-05) under the Framework of the co-fund partnership of Transforming Health and Care Systems, THCS, GA N° 101095654 of the EU Horizon Europe Research and Innovation Programme