[Allocation of single-use drugs in children in global compassionate use programs]

Compassionate use is the use of unapproved drugs in groups of patients suffering from a disease that, in the absence of an alternative treatment option, is life-threatening or leads to severe disability. Physicians are not in charge because access to the drug is only granted by pharmaceutical companies, which comes along with many ethical issues. Launched in 2020, the program of Onasemnogenum abeparvovecum against spinal muscular atrophy in children reached a new dimension. The intent of this drug is to stop the progression of the disease with just a single dose, but the company limited the doses in the program to only 100. The global allocation was by lottery, which was considered a novelty in compassionate use history and therefore widely criticized. This paper investigates alternative allocation principles.

Each possible principle is accompanied by many aspects that need to be considered with regard to urgency and global distribution. This makes some principles like first-come-first-served seem negligible. Remaining principles are ordered hierarchically to derive an algorithm that can represent an alternative to a lottery. A combination of willingness to participate in research, urgency, and likelihood of success (relative to the availability of supportive treatment options) may be considered in similar cases in future global compassionate use programs with children.

Since universal algorithms are difficult to define, allocation criteria should always be discussed by an independent panel of experts. Both the constitution of such a panel and its mandatory consultation are necessary in order to decrease the burden for all those involved and to prevent arbitrariness.