Challenges and proposed solutions in making clinical research on COVID-19 ethical: a status quo analysis across German research ethics committees
BMC Medical Ethics volume 22, Article number: 96 (2021)
In the course of the COVID-19 pandemic, the biomedical research community’s attempt to focus the attention on fighting COVID-19, led to several challenges within the field of research ethics. However, we know little about the practical relevance of these challenges for Research Ethics Committees (RECs).
We conducted a qualitative survey across all 52 German RECs on the challenges and potential solutions with reviewing proposals for COVID-19 studies. We de-identified the answers and applied thematic text analysis for the extraction and synthesis of challenges and potential solutions that we grouped under established principles for clinical research ethics.
We received an overall response rate of 42%. The 22 responding RECs reported that they had assessed a total of 441 study proposals on COVID-19 until 21 April 2020. For the review of these proposals the RECs indicated a broad spectrum of challenges regarding (1) social value (e.g. lack of coordination), (2) scientific validity (e.g. provisional study planning), (3) favourable risk–benefit ratio (e.g. difficult benefit assessment), (4) informed consent (e.g. strict isolation measures), (5) independent review (e.g. lack of time), (6) fair selection of trial participants (e.g. inclusion of vulnerable groups), and (7) respect for study participants (e.g. data security). Mentioned solutions ranged from improved local/national coordination, over guidance on modified consent procedures, to priority setting across clinical studies.
RECs are facing a broad spectrum of pressing challenges in reviewing COVID-19 studies. Some challenges for consent procedures are well known from research in intensive care settings but are further aggravated by infection measures. Other challenges such as reviewing several clinical studies at the same time that potentially compete for the recruitment of in-house COVID-19 patients are unique to the current situation. For some of the challenges the proposed solutions in our survey could relatively easy be translated into practice. Others need further conceptual and empirical research. Our findings together with the increasing body of literature on COVID-19 research ethics, and further stakeholder engagement should inform the development of hands-on guidance for researchers, funders, RECs, and further oversight bodies.
In December 2019, an outbreak of the previously unknown coronavirus SARS-CoV-2 that likely occurred in Hubei Province in China drew the world’s attention. Subsequently, the virus spread rapidly on a global scale and led the WHO to declare a pandemic emergency on 11 March 2020. With the sudden outbreak of the novel virus resulting in COVID-19 disease, the international biomedical research community aimed to better understand the virus and disease and engaged in the development of therapies, diagnostics and prevention measures. On 27 June 2020, the registry clinicaltrials.gov listed 2341 clinical studies, of which 1314 (56%) were classified as interventional studies, and 257 clinical trials on COVID-19 were listed in the EudraCT database of the European Medicines Agency (EMA). The true number of clinical studies is probably much higher because most health-related observational studies are not prospectively registered .
The rapidly growing number of studies of one disease at the same time raises concerns about research ethics and best practices. Can clinical research that is planned, funded, reviewed, conducted and published in a very short time fulfil the necessary requirements of effective, efficient, and ethical science? To support the research community in these unprecedented times, the WHO published the document "Ethical standards for research during public health emergencies: Distilling existing guidance to support COVID-19 R&D" on 29 March 2020 , which refers to already existing recommendations for ethical research during pandemics and briefly summarizes important points. The "Guidance on the management of clinical trials during the COVID-19 pandemic" of the European Commission and the EMA outlines some specific recommendations, for example, on informed consent . Expert papers point out ethically relevant risks and the potential damage caused by poorly planned and conducted research and stress the importance of adhering to scientific standards in times of crisis. They for example point out the risk of researchers being tempted to lower their standards for trial design to generate quick evidence, by e.g. using small sample sizes or forgoing randomisation and placebo control groups in their studies. They also mention the risk of different researchers conducting multiple similar studies on the same hypotheses, which will have little or no societal benefits and waste resources . More recent empirical analyses demonstrated the extent of these challenges .
These extraordinary pandemic circumstances most likely also pose challenges for the research ethics committees (RECs) that are in charge of the assessment of COVID-19 studies. RECs (German: Forschungsethik-Kommissionen or Ethik-Kommissionen) in Germany are generally obligated to assess all clinical, health care and epidemiological research. They furthermore not only have to assess but also approve studies conducted according to the German drug law (AMG: Arzneimittelgesetz) and German medical device law (MPG: Medizinproduktgesetz) . Therefore, the increased amount of research proposals on COVID-19 may confront the RECs with time pressure to perform a quick but still high-quality review. After the Ebola outbreak in 2014 this was detected as an important issue  and addressed by a WHO workshop “to identify practical processes and procedures related to ethics review preparedness”  that offers recommendations for a pandemic outbreak. With reference to the London & Kimmelman paper mentioned above  we anticipate challenges that address the scientific validity of studies. RECs are responsible for evaluating the scientific validity of study proposals as part of their review process. That also means they need to evaluate if the proposed study design and methodology are adequate to answer the research question and will therefore have benefits for the overall society . However, there is little information available on what challenges RECs currently face and how they deal with those challenges. To the knowledge of the authors, only one report exists that describes which types of modifications were necessary in 41 reviewed proposals and explanatory documents reviewed at one Chinese hospital . In March 2020 the WHO has published guidelines on how to perform Ethics Review during public health emergencies. Different countries and their RECs are situated in different stages of preparedness for the needs of a pandemic . No comparable public health emergency has occurred throughout the last decades in Germany, so it is questionable how well prepared the German RECs are for facing this pandemic.
The objective of this study was to broaden the understanding of current challenges in the work of RECs through a status quo analysis across all German RECs.
Sampling The sample included 52 German RECs that participate in the assessment of clinical study proposals as required by German law and professional regulations and that are members of the umbrella organization “Association of Medical Ethics Committees in Germany” (AKEK: Arbeitskreis Medizinischer Ethik-Kommissionen). As mentioned above in the background section the RECs are responsible for approving of clinical study proposals. The composition and seize of the RECs varies across the 16 federal states (“Bundesländer”) of Germany and is regulated through federal law. Medical and legal specialists, who are independent from the conduct of the studies in the research proposals, need to be members of all RECs in Germany. Apart from this, many RECs contain statisticians, medical ethicists and lay-people and they can include pharmacists .
Questionnaire As a research method, we used a qualitative survey, which means we focused on the gathering of qualitative data and used for analysis a qualitative methodology (thematic text analysis). We chose this method, because it is suitable for gaining new insights, ideas and understandings about so far barely understood situations, for which little or no empirical data exists . In contrast to a quantitative survey, which e.g. could be used to measure how often certain challenges occur, we wanted to find out, what the challenges/proposed solutions of the RECs actually were. To study the "qualitative spectrum of challenges and proposed solutions" in the most efficient way, we developed a questionnaire with three open questions. In addition, RECs were asked to indicate the number of interventional studies and non-interventional study proposals assessed until 21 April 2020. For further details, see the original questionnaire in the appendix.
Survey The survey was conducted between 21 April 2020 and 30 April 2020. The questionnaire was sent by e-mail together with a cover letter from the AKEK office to the office of the RECs, and the responses were returned from the offices of the RECs to the AKEK office. We did not ask which REC member(s) were involved in providing the answers. For reasons of time efficiency, presumably the REC member in charge of the office answered the survey questions on his*her own as a representative. However, it is possible that other REC-members were involved. The anonymized questionnaires were forwarded to the involved investigators (AF, AS, and DS) of the QUEST Center for analysis. In the invitation letter, we mentioned the possibility of a telephonic interview, considering the fact that the respondents could prefer to give verbal feedback via telephone rather than providing it in a written form due to a lack of time caused by the pandemic. However, no REC asked for a telephonic interview.
Analysis To extract, analyse, and synthesize the relevant information on the challenges and proposed solutions mentioned in the responses from the 22 RECs, thematic text analysis was performed independently by two researchers (AF, AS) using MaxQDA version 2020. First, the codes were grouped under one or more principles as described in an internationally established framework for clinical research ethics . Second, response passages mentioning challenges and solutions were identified, and descriptive codes were applied. Third, the coding results were compared to identify potential differences in coding. However, only minor differences occurred, which were solved through discussion. Fourth, themes mentioned in one response were matched with those from another response to collate the various codes and cluster the findings into categories and subcategories of challenges and solutions. All researchers discussed and slightly modified the matrix for internal consistency and agreed on the final matrix.
A questionnaire was sent to 52 RECs, of which 22 (42%) participated in the survey. According to information from the AKEK office, these 22 RECs together assessed 50% of the total 15,501 study proposals in Germany in 2017 and 53% of the total 17,182 study proposals in 2018. We did not try to re-contact the members of the RECs, who did not reply because we assumed they had an extraordinarily huge workload due to the pandemic and the response rate of 42% that included a broad spectrum of viewpoints across many German RECs was acceptable for conducting the qualitative text analysis.
The 22 RECs reported that they had assessed a total of 441 study proposals on COVID-19 as of 21 April 2020. These proposals included 229 proposals for interventional COVID-19 studies, of which 42 related to German drug law, one related to German medical device law and 187 related to the German professional code for physicians (Berufsrecht). In addition, there were 212 proposals for non-interventional studies.
The qualitative responses from the 22 RECs on experienced challenges and proposed solutions were all grouped under one or more of seven principles of the employed research ethics framework: social value, scientific validity, informed consent, respect for participants, independent review, favourable risk–benefit analysis and fair participant selection. We did not identify any responses that could be grouped under the eighths principle collaborative partnership. We therefore won’t discuss this principle in the following explanations in the results section or Table 1. The analysis reached thematic saturation at the framework level. Thematic saturation implies that no new principles or other overarching themes, but only further subcategories, could be generated. Table 1 presents all challenges and proposed solutions derived from the thematic text analysis. In the following, we explain selected topics that were addressed more frequently or with diverse viewpoints in narrative form.
The original goal of the study was to create a FAQ list for REC members. The list should have been a guiding document for the REC members to help them solve challenges they are confronted with when reviewing research proposals for COVID-19. From the data collected, it was not possible to create a complete FAQ list. However, we chose to present the results in a table that links a challenge with the prevailing proposed solution. The table is a complete report of the answers given by the REC members. We used the original wording whenever possible, translated it into English and only made minor corrections when necessary to present it in a grammatically correct way. Based on this summary, it is not possible to conclude on the frequency of the challenges and proposed solutions mentioned. We omitted multiple mentions of the same reference, incomprehensible references and redundant references e.g. “we need better statistics” as a proposed solution for insufficient biometrics.
With regard to scientific validity, some RECs complained about a lack of relevant information to assess the study validity or pointed to inadequate statistics. Comments also highlighted the partial lack of a clear rationale for "repurposing studies". Some RECs mentioned that it was apparent from the proposals that the applicants were under time pressure and that this pressure partly negatively affected the methodological quality of the submissions. The mentioned solutions to these challenges were diverse and in part contradictory. Some respondents tolerated a “pragmatic” assessment of the submitted documents. Others preferred additional meetings to discuss challenging issues in-depth. The requirement of biometric advice before the submission COVID-19 applications was mentioned as a strategy to ensure an effective and efficient advisory process and enable applicants to plan their studies better.
On the topic of informed consent, the vulnerability of patients requiring intensive care and facing isolation as an infection control measure was highlighted as a particular challenge. The isolation of COVID-19 patients makes direct contact with caregivers/legal proxy decision makers difficult. Many study proposals aimed explicitly or implicitly to include patients who were unable to give or restricted from giving informed consent. In addition, the RECs seemed to be uncertain or insufficiently prepared with regard to guidance on alternative or modified consent formats. A further problem arose from the question of which groups of COVID-19 patients were to be classified as unable to give or restricted from giving consent and according to which criteria. Apart from that, the specificities of gaining consent for biospecimens research during the pandemic remained unclear. Suggested solutions for the inclusion of persons unable to give informed consent were to collect consent by proxy and/or deferred consent. The importance of written consent was noted; however, the possibility of consent by telephone and the use of photographs of the original documents in isolation situations were proposed as solutions as well.
The social value principle was challenged by the conduct of several insufficiently coordinated and thematically difficult-to-distinguish COVID-19 studies in one hospital/region. REC members also highlighted a general lack of clear target actions in the planning of several register projects. The coordination of studies at the university level or at the national level was mentioned as a possible solution. Another suggestion was an explicit priority setting for research projects.
Many RECs reported intensive time pressure in the processing of COVID-19 proposals that we identified as a challenge for the independent review principle. Due to the lack of time, RECs reported difficulties in guaranteeing a high-quality assessment of all submitted proposals. In addition, RECs mentioned a strong demand of the applicants for a quick assessment. Logistical problems, such as working from the home office, would make things even more difficult. The solutions proposed included additional REC meetings, prioritized assessment of certain types of proposals and the use of online services for communication within the REC and with applicants. Some RECs mentioned the option to focus their assessments on proposals for which their institutions hosted the lead principal investigator and to fast-track multicentre proposals for which their institutions only served as a cooperating research facility.
The principle of the fair selection of study participants was challenged, for example, by the frequent inclusion of clinical staff in studies. Furthermore, RECs struggled with participant selection because the number of required study participants exceeded the number of available COVID-19 patients. It was unclear for RECs how to allocate patients across studies or how to determine and rank “priority studies”. As a proposed solution for the protection of hospital staff, RECs recommended that the applicants provide statements "on the careful handling of particularly vulnerable hospital staff". No potential solutions were mentioned for the allocation/priority setting problem.
A favourable risk–benefit ratio was difficult to pursue due to insufficient knowledge about COVID-19 and its heterogenic and rapidly changing clinical picture. The problems arose especially in intervention studies. Above all, the benefits for the participating patients were difficult to assess. Regarding risk, for example, the use of non-therapeutic research procedures, such as increased frequency of blood sampling, was partly insufficiently justified. A solution to this problem could be to check whether residual blood from routine care could be used. No solutions were mentioned for the problem of the difficulty of assessing benefits.
Finally, RECs reported various challenges with data management and data protection regarding the sensitive information of study participants, which we assigned to the principle of respect for study participants. Proposed solutions included more anonymization or pseudonymization of data and a limitation of the use of the data to COVID-19 specific research projects.
In a national survey of all 52 German RECs from April 2020, we studied the number of assessed COVID-19 study proposals and the qualitative spectrum of associated challenges and proposed solutions. The 22 RECs reported that they assessed 441 COVID-19 study proposals (229 interventional and 212 non-interventional). The reported experienced challenges and proposed solutions were grouped under eight research ethics principles .
In the following, we supplement the survey results described above with a more detailed interpretation and information on initiatives that have been started since April to directly address some of the challenges in the coming months.
When the novel Coronavirus became a threat to our globalized world in 2019, there was no specific drug, neither a vaccine to stem actively the spread of the virus. As it has been mentioned before, the biomedical research community reacted in historical speed to develop pharmacological interventions to fight the virus and the new COVID-19 disease. Although it normally takes years to develop a vaccine, united global efforts made a successful development in a couple of months possible. The desperate wish for an effective treatment and a vaccination in combination with the increased speed entails risks, particularly the risk of lowering scientific end ethical standards. Especially in pandemic times, it is important to gain evidence-based knowledge, because new interventions will be used in short time on the general public. The problems contained in research exceptionalism are in-depth discussed elsewhere [4, 14, 15], among these are too many different small studies with the same research question, insufficient reporting and poor study design. Our findings indicate that this is not just a theoretical problem and there might be a tendency among researchers to lower scientific standards because of time pressure. Shortly after the survey was distributed, the German Ministry of Education and Research (Bundesministerium für Bildung und Forschung: BMBF) funded the National Research Network, which, under the direction of Charité-Universitätsmedizin Berlin, is working on various approaches to improve the efficiency and effectiveness of national research on COVID-19 . This network has the potential to strengthen scientific validity by providing, for example, standardized data sets for COVID-19 projects, a national database and measures for the coordination and creation of quality standards in medical research on COVID-19.
Regarding informed consent for persons unable to give consent or with restricted ability to give consent, there are already various previous experiences and recommendations in the context of emergency and intensive care medicine on the topic [17,18,19]. To address this topic in a practice-oriented way for COVID-19 research, these recommendations should be further developed and specified for isolated patients, acknowledging several infection control measures. COVID-19-specific recommendations on the topic of “deferred consent” or the monitoring of consent processes ("consent monitor") might be of particular relevance [20, 21]. Below, we will substantiate some of these challenges and recommendations. People in medical emergencies are on one hand an especially vulnerable subgroup of patients, they are often unconscious and when they are conscious they are scared and in severe medical condition, which makes it almost impossible to provide informed consent. On the other hand, they too, have a right to evidence-based medical care, for which we need research. Alternative methods to gain consent used in the above mentioned emergency setting are “consent by proxy”, “deferred consent” and a waiver of consent . The RECs mentioned deferred consent as a possible alternative pathway to gain consent from severely ill patients with COVID-19, although there was a lack of clear guidance on how to put this alternative procedure into practice. In this regard, the work of Rieke van der Graaf et al. can be of help, they specify under which conditions it is ethically tenable to use the deferred consent procedure during the COVID-19 pandemic .
With increasing digitization and storage options in biobanks, new research opportunities are resulting, using biospecimens from routine health care. These opportunities for storage and use are accompanied by challenges for informed consent procedures that have been debated independently of the pandemic. The debates center on alternative consent procedures such as “broad consent” . Maria Lapid et al. offer an analysis of the ethical challenges of biospecimen research during the pandemic together with some recommendations for IRB members that already can be of use but need further translation into practice under different local circumstances .
Histopathological knowledge of COVID-19 is an important dimension of understanding the disease. How to gain consent for histopathological research as a certain kind of biospecimens research after the patient died, has been discussed against the backdrop of South African circumstances. A waiver of consent followed by consent by proxy later on are suggested .
There is little previous experience with forecasting the social value of individual clinical studies , especially with priority setting across clinical studies in a pandemic situation. The prioritization of research projects is usually addressed from a long-term perspective and focuses on the prioritization of whole research areas . For short-term prioritization, it might be possible to agree on ethically relevant prioritization criteria such as "clinical relevance" and a "sufficiently high probability of success". While the general clinical relevance of various therapeutic approaches to COVID-19 might be determined relatively well, there are important challenges in clarifying the likelihood of their success. The error rate of early clinical research is generally very high , and there is a lack of robust concepts for identifying study projects with a particularly high probability of success. Michelle Meyer et al. developed guidance for institutions on how to prioritize clinical studies during the pandemic .
The priority setting/allocation challenge mentioned in fair participant selection is linked closely to the prioritization of different clinical studies discussed in the social value section above. Research on vulnerable populations, such as prisoners  or children  is a topic well known to research ethics, whereas there is a lack of hands-on guidance on how to handle the inclusion of hospital staff into clinical studies.
To guarantee qualitative scientific and ethical indpendent review in a pandemic is of utmost importance. The logistical challenges and the question of how to balance high quality assessment of the proposals and increased turnaround and workload was not one posed solely by German REC members . To address this issue the WHO has launched guidelines for rapid ethics review in public health emergencies such as the current COVID-19 pandemic . These guidelines are supposed to be translated and adapted (in)to national circumstances, which some countries already did [34, 35].
A pandemic caused by a new pathogen comes along with a high level of uncertainty. That relevant parameters, e.g. mortality rate, of a new disease can rapidly change, especially in the beginning of an outbreak, is known from previous epidemics . Therefore, it can be necessary for RECs to adjust their assessment of the risk–benefit-ratio of a study throughout the process of the study.
To respect study participants also means to respect their right of privacy and informational self-determination. The Data Protection Regulation (GDPR) of the European Union that came into force 2018 brought many changes for data safety instructions in medical research that have been discussed independently of the pandemic . Gianclaudio Malgieri gives an introduction into the debate about the balance between the need for processing and using data, especially health related data, to fight the COVID-19 pandemic on the one hand and data protection for the individual on the other hand . The re-use of data for e.g. epidemiological research, which were collected for other purposes in the first place, is vital to understanding a pandemic. The WHO has launched ethical guidance for public health surveillance that entails a section about the use of surveillance data for research purposes that can be helpful for the COVID-19 pandemic .
The exploratory survey reported here has the following limitations. First, many responses focused on the areas of scientific validity and informed consent, which may be related to the fact that the questionnaire explicitly asked about challenges and solutions regarding “statistics/study quality”, “informed consent”, and “other issues”. However, the broad spectrum of challenges and proposed solutions mentioned shows that many responding RECs expanded the focus. Second, we received a response rate of 42%. It is possible that the RECs that responded were the RECs where particular challenges in connection with COVID-19 studies frequently arose. As described above, our survey did not aim to make a statement about the frequency of challenges but rather about the qualitative spectrum of the challenges described. Third, we could not verify the information on the number of applications processed.
Currently, there are many international contributions that address ethical issues in COVID-19 research, such as in "challenge studies"  or in “high-demand trials” . Our status quo analysis on ethical issues based on feedback from 22 German RECs broadens our understanding of the spectrum of ethical challenges in COVID-19 research as perceived from those involved in the concrete review and oversight of COVID-19 studies. Further research on ethical challenges and proposed solutions as perceived by principle investigators and other stakeholder groups could complement this picture. Practice-oriented recommendations for the most pressing ethical challenges should be developed to support applicants, RECs, funders, potential research participants, and proxy decision makers in the best possible way ("pandemic response") and to prepare for future pandemic situations ("pandemic preparedness"). The BMBF-funded project "PRECOPE—Preparedness and Response for Ethical Challenges in Human Subject Research during COVID-19 and similar PandEmics", starting in August 2020, will address these tasks. Based on a systematic literature review, in-depth interviews, and further stakeholder engagement, PRECOPE aims to develop practice-oriented recommendations for the most pressing ethical challenges. As most ethical challenges in COVID-19 research ethics are expected to be on a global scale, international cooperation in developing preparedness and response measures is of utmost importance.
Availability of data and materials
The datasets used and/or analysed during the current study may be available from the corresponding author on reasonable request. There are legal constraints that prohibit us from making all data publicly available, e.g. they are containing information that could compromise the de-identification of the participating RECs.
“Arzneimittelgesetz”, German drug law
“Medizinproduktgesetz”, German medical device law
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We would like to thank the participating RECs for their time and willingness to cooperate.
Open Access funding enabled and organized by Projekt DEAL. The project received intramural funding from the Berlin Institute of Health (BIH). The funder had no role in study design, data collection, analysis, and interpretation, or in writing the manuscript.
Ethics approval and consent to participate
Not applicable. This survey did not ask for personal data (“human data”) but for information about legal institutions ("institutional data"). Thus, neither the EU GDPR nor the German Data Protection Act applies. Furthermore, there is no legal basis or ethics guidance in Germany to get the opinion of an Ethics Committee for this assessment of institutional data.
Consent for publication
DS is a member of the Charité Research Ethics Committee. JH is the head of Association of Medical Ethics Committees in Germany and working for Research Ethics Committees. KK is head of office at the Association of Medical Ethics Committees in Germany.
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Questionnaire. Title of data: Questionnaire for the assessment of COVID-19 studies by research ethics committees. Description of data: The English translation of the original survey questionnaire for the RECs.
COREQ Checklist. Title of data: COREQ (COnsolidated criteria for REporting Qualitative research) Checklist. Description of data: A checklist of items that should be included in reports of qualitative research.
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Faust, A., Sierawska, A., Krüger, K. et al. Challenges and proposed solutions in making clinical research on COVID-19 ethical: a status quo analysis across German research ethics committees. BMC Med Ethics 22, 96 (2021). https://doi.org/10.1186/s12910-021-00666-8
- Research ethics committees
- Research ethics