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Dr
Primus Chi

Kenya

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Project Title

Social, Ethical and Regulatory implications of conducting a malaria Vaccine Efficacy trial in a human infection study in Kenya

EDCTP Project

TMA2019CDF-2751

EDCTP Program

EDCTP2

EDCTP Project Call

Career Development Fellowship (CDF)

Project Objectives

Overall aim: To contribute to the development of locally responsive policies on the ethical conduct of malaria vaccine efficacy studies involving the use of a HIS in an LMIC setting. Specific objectives 1. To explore and critically analyse the social, ethical and regulatory issues arising from implementing a malaria vaccine efficacy study in the context of a malaria HIS 2. To explore understanding, perceptions and recommendations of HIS stakeholders about the social, ethical and regulatory issues arising from conducting a malaria vaccine efficacy study in the context of a malaria HIS through deliberative engagement processes 3. Drawing on the wider research ethics literature and findings from 1 & 2, to develop recommendations around the nature of responsive policies for the ethical conduct of malaria HIS, including those involving malaria vaccine challenge models.

Study Design

This is an empirical ethics study drawing on mixed methods in social science, largely based on a qualitative research strategy, including descriptive and deliberative approaches, but also including quantitative surveys with prospective and actual HIS participants.

Project Summary

Malaria remains an important public health problem in many LMICs, including Kenya – necessitating alternative prevention and control strategies. Malaria human infection studies (HIS) – trials that involve the deliberate infection of healthy volunteers with malaria parasites to assess the efficacy of potential vaccine and drug candidates and to understand the innate and acquired protection against malaria parasites - have become an important approach to fast-track the development of a malaria vaccine. The KEMRI-Wellcome Trust Research Programme (KWTRP) has developed expertise in setting up and running research on malaria HIS. One of the planned studies is an EDCTP-funded Phase IIb malaria vaccine efficacy trial within a HIS. While all scientific proposals at KWTRP are carefully reviewed by national and international science and ethics review bodies and are supported by a well-developed local community engagement platform, research to understand the social, ethical and regulatory issues for HIS from a grounded perspective is in early stages of development, especially in LMICs. Given the particular opportunities provided by the KWTRP’s experience in running HIS, expertise in embedded social science research and the presence of a well-established community engagement platform, we are conducting a social science study within the HIS-based Phase IIb malaria vaccine trial. The overall aim is to contribute to the development of locally responsive policies on the ethical conduct of malaria vaccine efficacy studies involving the use of a HIS in Kenya. Data has been collected from a range of HIS stakeholders (including HIS volunteers, family members of HIS volunteers, community representatives and leaders, HIS research team, ethics committees, and regulatory authorities) through observation, 27 interviews, three focus group discussions, and 135 and 37 pre-enrolment and exit questionnaires respectively. Additional data has been collected from deliberative consultations (two involving large information workshops and five small group discussions) with 10 HIS fieldworkers and engagement staff, and 19 community representatives and leaders. Two additional deliberative consultations have been with former HIS volunteers, and members/staff of ethics committees, and regulatory authorities, HIS researchers, and policy stakeholders. Upon completion of the deliberative consultations, we will organize 1-2 workshops to validate the findings that have been generated from the process. The validated findings from deliberative engagement process will feed into recommendations around responsive policies for ethical conduct of HIS. The protocol manuscript from the project has been submitted to Wellcome Open Research for review and publication. A manuscript drawing on the screening and exit surveys is under development. With respect to impact of our project, we have shared our work and findings at different national and international conferences including the Bioethics Society of Kenya (BSK) 2023 conference, Oxford Global Health and Bioethics Conference 2023, and International Association for Biological Standards (IABS) 4th CHIM meeting (2023). As a result of our work, I have been invited to join and contribute to the VolREthics Initiative’s “Global Ethical Charter to Protect Healthy Volunteers in Clinical Trials” and associated position papers. For more information on the project please see: https://kemri-wellcome.org/serve-kenya-study/

Host Organisation

Department Institution Country
Health Systems and Research Ethics Health Research Operations Kenya Limited KE

Sites

Results & Outcomes

I. OBJECTIVE 1 To achieve objective 1, we undertook non-participant observation of key HIS activities & processes, and document review of relevant HIS literature and communications. Additionally, we conducted individual in-depth interviews, focus group discussions, and surveys with a wide range of HIS stakeholders. The HIS stakeholders that were engaged as part of the data collection were prospective HIS participants (at the time of screening into the malaria HIS), former & current HIS participants and their family members, opinion leaders and representatives, community members, fieldworkers and community engagement staff, research ethics committee (REC) and regulatory authority staff, health providers, HIS staff & policy makers. Through these data collection exercises, we expected to develop a synthesis of social, ethical and regulatory issues (SERIs) arising from conducting a malaria vaccine efficacy study in the context of a HIS. The key SERIs that emerged from the work include the following: 1. 2. Benefits and burdens Benefits • Most participants spoke about medical screening as a benefit, considering they or their significant others were able to access screening tests for free which would not otherwise be the case at local health facilities. • Financial compensation was viewed as both individual and family benefit as it provided a means to meet daily and immediate needs as well as investment in long-term projects. This view was expressed by study participants, significant others, and community members. Burdens a. In-residence • Long periods of staying away from family. • Limited movement within a stipulated area. • Limited activities to engage in while in residence resulting in boredom. b. Health screening • Some medical screening procedures were viewed as burdens, e.g. COVID testing and frequent blood draws. 3. Concerns – Social, ethical, regulatory • Social concerns raised by participants included the implication of extended stay away from home e.g.