[dynm]

This paper states:

> The study protocol was approved by the Institutional Ethics Committee and registered with the Clinical Trials Registry of India

As far as I can tell, that registry is here: https://www.ctri.nic.in/Clinicaltrials/pubview.php

Doing a keyword search for the first author's last name reveals zero hits. (It's possible I'm missing—that search does not inspire confidence.)