Addressing bias in artificial intelligence for public health surveillance.

Components of artificial intelligence (AI) for analysing social big data, such as natural language processing (NLP) algorithms, have improved the timeliness and robustness of health data. NLP techniques have been implemented to analyse large volumes of text from social media platforms to gain insights on disease symptoms, understand barriers to care and predict disease outbreaks. However, AI-based decisions may contain biases that could misrepresent populations, skew results or lead to errors. Bias, within the scope of this paper, is described as the difference between the predictive values and true values within the modelling of an algorithm. Bias within algorithms may lead to inaccurate healthcare outcomes and exacerbate health disparities when results derived from these biased algorithms are applied to health interventions. Researchers who implement these algorithms must consider when and how bias may arise. This paper explores algorithmic biases as a result of data collection, labelling and modelling of NLP algorithms. Researchers have a role in ensuring that efforts towards combating bias are enforced, especially when drawing health conclusions derived from social media posts that are linguistically diverse. Through the implementation of open collaboration, auditing processes and the development of guidelines, researchers may be able to reduce bias and improve NLP algorithms that improve health surveillance.

UK Research Ethics Committee's review of the global first SARS-CoV-2 human infection challenge studies.

This paper describes the UK Research Ethics Committee's (REC) preparations and review of the global first SARS-CoV-2 human infection challenge studies. To frame our review, we used the WHO guidance and our UK Health Research Authority ethical review framework. The WHO criteria covered most issues we were concerned about, but we would recommend one further criterion directing RECs to consider alternative research designs. Could research questions be equally well answered by less intrusive studies? The committee met virtually, ensuring broad representation across the UK nations and also ensuring applicants could attend easily. We worked in collaboration with the applicants but while we recognise that such proximity might raise the accusation of 'collusion', we made every effort to maintain 'moral distance' and all decisions were made by the committee alone. Prior existing processes and policy facilitated training and review but even with this preparation, review took time and this could have hindered a rapid response to the emergency. Review for the various follow-on studies will now be speedier and once the pandemic has subsided, our group could be reconvened in future emergencies. In conclusion, we have tried to make decisions in good faith. We know there is controversy and disagreement and reasonable people may feel we have made the wrong decision. A more detailed analysis, built on the WHO guidance, is provided in online supplemental material.

Equipoise, standard of care and consent: responding to the authorisation of new COVID-19 treatments in randomised controlled trials.

In response to the COVID-19 pandemic, large-scale research and pharmaceutical regulatory processes have proceeded at a dramatically increased pace with new and effective, evidence-based COVID-19 interventions rapidly making their way into the clinic. However, the swift generation of high-quality evidence and the efficient processing of regulatory authorisation have given rise to more specific and complex versions of well-known research ethics issues. In this paper, we identify three such issues by focusing on the authorisation of molnupiravir, a novel antiviral medicine aimed at reducing the ability of SARS-CoV-2 to multiply in the body, for clinical use by the National Health Service in England and the concomitant testing of molnupiravir through the large-scale Platform Adaptive trial of Novel antiviRals for eArly treatMent of COVID-19 In the Community randomised control trial. By analysing the ways in which the authorisation and clinical use of molnupiravir complicate standard approaches to clinical equipoise, standard of care and participant consent in the PANORAMIC randomised control trial, we will explain some of ethical implications for clinical trials that aim to study the efficacy and safety of new COVID-19 and other therapeutics when conditional authorisation has already been granted and when such treatments have already been made available to patients by national health providers.

COVID-19 vaccines: a look at the ethics of the clinical research involving children.

Currently, millions of minors are being inoculated against SARS-CoV-2 in many countries in the world. Ethical concerns about clinical research involving children have barely been addressed in the literature, despite the fact that the paediatric population is particularly vulnerable within this context. Children should be included in the research plans for COVID-19 vaccines. Nevertheless, it is necessary to critically assess to what extent clinical trials are being conducted according to methodological and ethical criteria that allow us to conclude that the results are valid and, in consequence, how far the vaccination plans for children are scientifically justified.The principal aim of this article is to analyse critically the process of clinical research on COVID-19 vaccines involving children, highlighting the ethical concerns that arise, including the need to stratify the results from older adolescents separately for analysis before proceeding, if further research is warranted, in descending age order. The development of COVID-19 vaccines is examined, with a special look at the participation of children throughout their clinical development, including a review of the clinical trials registered in three international databases. We also offer some additional considerations about the inclusion of minors in vaccination plans. Finally, we conclude with some recommendations, with particular emphasis on the following ethical duties: research in children should be carried out only once the relevant research in adults has previously been conducted; issues that concern children's needs and rights should be specifically addressed; and, therefore, the highest standards of ethical and scientific quality should be met.

The Essential Role of Data and Safety Monitoring Boards (DSMBs) in Ensuring the Ethics of Global Vaccine Trials to Address Coronavirus Disease 2019 (COVID-19O).

Coronavirus disease 2019 (COVID-19) vaccines are being developed and implemented with unprecedented speed. Accordingly, trials considered ethical at their inception may quickly become concerning. We provide recommendations for Data and Safety Monitoring Boards (DSMBs) on monitoring the ethical acceptability of COVID-19 vaccine trials, focusing on placebo-controlled trials in low- and middle-income countries.

The landscape of COVID-19 clinical trials in Latin America and the Caribbean: assessment and challenges.

A considerable number of clinical trials is being conducted globally in response to the COVID-19 pandemic, including in low- and middle-income countries such as those in the Latin America and Caribbean region (LAC). Yet, an abundance of studies does not necessarily shorten the path to find safe and efficacious interventions for COVID-19. We analyze the trials for COVID-19 treatment and prevention that are registered from LAC countries in the International Clinical Trials Registry Platform, and identify a trend towards small repetitive non-rigorous studies that duplicate efforts and drain limited resources without producing meaningful conclusions on the safety and efficacy of the interventions being tested. We further assess the challenges to conducting scientifically sound and socially valuable research in the LAC region in order to inform recommendations to encourage clinical trials that are most likely to produce robust evidence during the pandemic.

Se está llevando a cabo un número considerable de ensayos clínicos en todo el mundo en respuesta a la pandemia de COVID-19, incluso en países de ingresos bajos y medios como los de la región de América Latina y el Caribe. Sin embargo, la abundancia de estudios no necesariamente acorta el camino para encontrar intervenciones seguras y eficaces frente a la COVID-19. Se analizaron los ensayos para el tratamiento y la prevención de la COVID-19 de los países de América Latina y el Caribe que están registrados en la Plataforma de Registros Internacionales de Ensayos Clínicos de la Organización Mundial de la Salud, y se identificó una tendencia hacia la realización de estudios pequeños, repetitivos y no rigurosos que duplican los esfuerzos y merman recursos limitados sin producir conclusiones significativas sobre la seguridad y la eficacia de las intervenciones evaluadas. Se evaluaron asimismo los desafíos que plantea la realización de investigaciones científicamente sólidas y socialmente valiosas en la región de América Latina y el Caribe a fin de brindar recomendaciones que alienten la realización de ensayos clínicos que tengan más probabilidades de producir evidencia sólida durante la pandemia.