The Early Access and the Potential Cost Savings by the Compassionate Use of Onco-haematological Drugs: Results from the Italian Study Compass-O

Background: Compassionate drug use (CDU) provides early access to not yet authorised medicines and is funded by pharmaceutical companies. The observational retrospective study Compass-O monitored the CDU of onco-haematological drugs, managed by seven Italian units for cytotoxic drug preparations (Unità Farmaci Antiblastici [UFA]), between 1 January, 2016 and 31 December, 2021. Objective: We aimed to evaluate the CDU of onco-haematological drugs managed by seven Italian UFA, between 2016 and 2021. Methods: The seven UFA provided anonymised data concerning CDU approved in the study period. The early access and potential cost savings for the National Health System (Servizio Sanitario Nazionale [SSN]) were analysed for CDU concerning drug-therapeutic indication combinations with complete data and reimbursed by SSN up to December 2023 (date of study execution), according to the executive decision of the Italian Medicines Agency (Agenzia Italiana del Farmaco [AIFA]). Both analyses distinguished solid/liquid tumours and categorised the combinations as innovative (fully/conditionally) or non-innovative based on AIFA assessments. Results: Compass-O collected 783 CDU authorisations, with 572 (73.1%) analysable in terms of early access and cost savings. On average, early access amounted to 514 days and the total cost savings was €376,115,801. Compassionate drug use approvals involved mainly solid tumours (93.7% vs 6.3% for liquid tumours), and the combination of trastuzumab emtansine-breast cancer was the most dispensed (n = 73; early access = 426 days; potential cost savings: €610,388). Out of 572 CDU approvals, 200 (35%) were innovative drug-therapeutic indication combinations, with 598 days of early access and a total potential saving of €113,124,069. Conclusions: The study Compass-O showed a significant economic burden of CDU and a relevant need for early access, particularly for innovative drugs. However, there is currently no structured monitoring of CDU in Italy, suggesting the need for a national observatory, of which Compass-O can be the pilot phase.