• Palvi Kudyar, Dhruve Soni, and Nithya J Gogtay.
• Department of Clinical Pharmacology, First floor, New Building, Seth GS Medical College and KEM Hospital, Acharya Donde Marg, Parel, Mumbai 400012, Maharashtra, India.
• Natl Med J India. 2022 Jul 1; 35 (4): 214218214-218.

AbstractBackground In May 2020, WHO recognized the role of extensive immunization for interrupting the transmission of the SARS-CoV-2 virus. The development of such vaccines in clinical trials relies upon participants who are expected to be vested in the research process. Assessment of participant factors such as motivation and satisfaction are hence important to gauge perspective and ensure successful conduct and completion of these trials. Methods We administered a validated three-domain questionnaire to and documented the binary categorical responses (yes/no) of participants (after informed consent) who had taken both doses of COVOVAX™ in a phase 3 trial at our institute. Association of the dependent variables (participant responses) with the independent variables (participant demographics and socioeconomic strata) was computed using Chi-square test at 5% significance. In case of a significant association, Bonferroni post-hoc test was applied for multiple comparisons. Results Of the 78 participants who were administered the questionnaire, two-thirds were highly satisfied with their experience at our site. Gaining access to a new vaccine was a primary motivation overall (74%) and also in graduates (p=0.03) and middle-class population (p=0.002), whereas the lower-middle class population (p<0.0001) and those educated till secondary school (p=0.003) took part due to the long wait for government-approved vaccines. Conclusion Participants in a Covid-19 vaccine trial at Mumbai were largely satisfied with the care given to them though altruism did not feature as a primary reason for participation.

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