This commentary shall focus on the central claim made in Lynch et al.’s paper “Promoting Ethical Payment in Human Infection Challenge Studies.” According to their paper, there is a threefold...

To prepare for potential human infection challenge studies involving SARS-CoV-2, we convened a multidisciplinary working group to address ethical questions regarding whether and how much SAR...

The paper by Lynch et al. argues that payments to research participants in biomedical research can be divided into three different categories, reimbursement, compensation, and incentive and...

Controlled Human Infection Model (CHIM) research involves the infection of otherwise healthy participants with disease often for the sake of vaccine development. The COVID-19 pandemic has emphasised the urgency of enhancing CHIM research capability and the importance of having clear ethical guidance for their conduct. The payment of CHIM participants is a controversial issue involving stakeholders across ethics, medicine and policymaking with allegations circulating suggesting exploitation, coercion and other violations of ethical principles. There are multiple approaches to payment: reimbursement, wage (...) payment and unlimited payment. We introduce a new Payment for Risk Model, which involves paying for time, pain and inconvenience and for risk associated with participation. We give philosophical arguments based on utility, fairness and avoidance of exploitation to support this. We also examine a cross-section of the UK public and CHIM experts. We found that CHIM participants are currently paid variable amounts. A representative sample of the UK public believes CHIM participants should be paid approximately triple the UK minimum wage and should be paid for the risk they endure throughout participation. CHIM experts believe CHIM participants should be paid more than double the UK minimum wage but are divided on the payment for risk. The Payment for Risk Model allows risk and pain to be accounted for in payment and could be used to determine ethically justifiable payment for CHIM participants.Although many research guidelines warn against paying large amounts or paying for risk, our empirical findings provide empirical support to the growing number of ethical arguments challenging this status quo. We close by suggesting two ways (value of statistical life or consistency with risk in other employment) by which payment for risk could be calculated. (shrink)

We thank the authors of the five commentaries for their careful and highly constructive consideration of our paper,1 which has enabled us to develop our proposal. Participation in research has traditionally been viewed as altruistic. Over time, payments for inconvenience and lost wages have been allowed, as have small incentives, usually in kind. The problem, particularly with controlled human infection model research or ‘challenge studies’, is that they are unpleasant and time-consuming. Researchers want to offer carrots to incentivise participation. We (...) are proposing that research participation be viewed as a job with the full suite of financial entitlements of fairly remunerated work, including payment for risk and labour law protections. This would be a significant shift from current practice and standards. Ambuehl, Ockenfels and Roth have grasped this basic point and have beautifully elaborated how a fair price could be arrived at using economic theory. They build on our proposal helpfully and suggest ‘ salary for time involvement that is adjusted to account for the amount of discomfort experienced during participation, insurance against ex post adverse outcomes and ex ante compensation for risks that cannot be compensated ex post.’3 This effectively addresses Fernandez Lynch and Largent’s2 concern that compensation for risk is inappropriate for harms which do not eventuate. However, because death cannot be compensated for, there must be payment for risk of death, as Ambuehl, Ockenfels and Roth convincingly argue.3 Indeed, the three-part model suggested by Ambuehl, Ockenfels and Roth makes us realise that job model would be a better title for our model than a payment for risk model. The alternative to a properly remunerated job model is the original altruistic model. However, this …. (shrink)

The COVID-19 pandemic has necessitated rapid research to aid in the understanding of the disease and the development of novel therapeutics. One option is to conduct controlled human infection trials (CHITs). In this article I examine the history of deliberate human infection and CHITs and their utilization prior to the COVID-19 pandemic, key ethical considerations of CHITs in the COVID-19 setting, an analysis of the World Health Organization’s (WHO) Key criteria for the ethical acceptability of COVID-19 human challenge studies, and (...) a review of the two COVID-19 CHITs that have already commenced, their compliance with the WHO criteria and other ethical considerations. (shrink)