Analysis of AYUSH studies registered in clinical trials registry of India from 2009 to 2020

Abstract

Background: The Clinical Trials Registry-India (CTRI) is an initiative of the Indian Council of Medical Research, New Delhi, India (ICMR) and monitored by the ICMR-National Institute of Medical Statistics (NIMS) since July 20, 2007. Randomized clinical trials are considered as the gold standard in evidence-based medicine. Registration of clinical trials enables disseminating evidence among clinicians, researchers, and patients. It promotes transparency and avoids duplication. The registration process is mandatory for AYUSH clinical trials also.

Objectives: This analysis is aimed to determine the different characteristics of registered AYUSH clinical trials in CTRI from 2009 to 2020.

Materials and methods: A cross-sectional retrospective analysis was conducted. The information on registered clinical trials about AYUSH was obtained from the website www.ctri.nic.in from 2009 to 2020 (n = 3632; last accessed on July 30 2020). Data analysis considered the following factors for analysis using descriptive statistics. The number of clinical trials registered in AYUSH stream were classified according to registration type (retrospective/prospective), postgraduate dissertations (yes/no), primary sponsor, type of trial (interventional/observational), study design, health condition and State-wise distribution of sites of studies.

Results: The number of clinical trial registrations among AYUSH streams (3632) descends from Ayurveda (2054), followed by Siddha (635), Yoga (408), Unani (366) and Homoeopathy (169). Interventional studies dominate observational studies among all AYUSH registered trials. AYUSH streams took four years to register in CTRI due to an increase in reporting trials from 2013. Significant number of trials were registered retrospectively. The order of closure of retrospective registration has influenced an increase in prospective enrolment between 2017-2019.

Conclusion: Registration of clinical trials in the CTRI should be encouraged. Randomized controlled trials (RCTs) occupy a rear seat which exposes an opportunity for trials and alarms about weak trials. Non-communicable diseases (NCDs) are registered more comparatively, which reflects the strength of AYUSH in NCDs. Most of the trials fall under phase 2, which seems to have an increasing opportunity for more trials. Certain visible flaws like registering Phase 2 trials as Phase 3 or 4 and domestic trials as international trials reflect human resources crunch in ICMR-CTRI in Issuing Certificates. These errors should be rectified by training the stakeholders effectively.

Keywords: AYUSH clinical trials; Clinical Trials Registry—India; Randomized controlled trial; Siddha.