Bridging Two Paradigms: A Reverse-Pharmacology Framework for CTRI/ICMR-Compliant Ayurvedic Clinical Trial Design

Authors

  • Shirin Kazi Associate Research Scientist
  • Manaswi Rajurkar
  • Chirag Warty

DOI:

https://doi.org/10.52482/ayurline.v10i06.1120

Abstract

Ayurvedic drug development in India occupies a regulatory space distinct from conventional new chemical entities, governed jointly by the Ministry of AYUSH, the Central Drugs Standard Control Organisation (CDSCO), and the ethical framework of the Indian Council of Medical Research (ICMR) [1-3]. Reverse pharmacology (RP) - a discovery paradigm that begins with documented clinical experience and works backward toward mechanistic validation - has been proposed as a scientifically rigorous and cost-efficient route for translating classical Ayurvedic formulations into evidence-based therapeutics [4-6]. This paper examines whether reverse pharmacology can additionally function as a regulatory bridge - that is, whether its three canonical stages (documentation, exploratory studies, confirmatory clinical research) can be explicitly mapped onto India's Clinical Trials Registry (CTRI) registration requirements, the National Ethical Guidelines for Biomedical and Health Research (ICMR, 2017), and the New Drugs and Clinical Trials Rules, 2019 (NDCT 2019) [1,2,7]. Using a narrative synthesis of the published literature and a retrospective review of CTRI registry data, we find that Ayurveda accounts for more than half (2,054/3,632; 56.6%) of all AYUSH trials registered between 2009 and 2020, yet methodological audits of these trials - including a 140-trial analysis of Ayurveda COVID-19 protocols - continue to report incomplete randomisation and blinding detail [8,9]. We propose an integrated five-checkpoint framework linking each RP stage to a specific regulatory or ethical deliverable, and illustrate its institutional application using an anonymised, in-progress pilot-protocol series for periumbilical (Nabhi-route) herbal oil formulations. 

Author Biographies

Manaswi Rajurkar

Resident Medical Officer , Ved Sanjeevani Private Limited, Nagpur, India

Chirag Warty

Director, Research and Development, Ved Sanjeevani Private Limited, Nagpur, India

References

Indian Council of Medical Research. National Ethical Guidelines for Biomedical and Health Research Involving Human Participants. New Delhi: ICMR; 2017.

2. Government of India, Ministry of Health and Family Welfare. New Drugs and Clinical Trials Rules, 2019 (G.S.R. 227(E), dated 19 March 2019). New Delhi: Central Drugs Standard Control Organisation; 2019.

3. Department of AYUSH, Ministry of Health and Family Welfare, Government of India. Good Clinical Practice Guidelines for Clinical Trials in Ayurveda, Siddha and Unani Medicine. New Delhi; 2013.

4. Patwardhan B, Vaidya ADB. Natural products drug discovery: accelerating the clinical candidate development using reverse pharmacology approaches. Indian J Exp Biol. 2010;48(3):220-227.

5. Patwardhan B, Vaidya ADB, Chorghade M. Ayurveda and natural products drug discovery. Curr Sci. 2004;86(6):789-799.

6. Patwardhan B, Vaidya ADB, Chorghade M, Joshi PS. Reverse pharmacology and systems approaches for drug discovery and development. Curr Bioact Compd. 2008;4(4):201-212. doi:10.2174/157340708786847870

7. Pandey A, Aggarwal AR, Seth SD, Maulik M, Bano R, Juneja A. Clinical Trials Registry - India: redefining the conduct of clinical trials. Indian J Cancer. 2008;45(3):79-82. doi:10.4103/0019-509X.44060

8. Shree Devi MS, Sathiyarajeswaran P, Kanakavalli K, Vinod NP, Baskar V. Analysis of AYUSH studies registered in Clinical Trials Registry of India from 2009 to 2020. J Ayurveda Integr Med. 2021;12(2):346-350. doi:10.1016/j.jaim.2021.02.010

9. Chaudhari SS, et al. A methodological analysis of CTRI registered clinical trials on Ayurveda interventions for COVID-19 management. J Ayurveda Integr Med. 2023;14(1):100631. doi:10.1016/j.jaim.2022.100631

10. Patwardhan B, Mashelkar RA. Traditional medicine-inspired approaches to drug discovery: can Ayurveda show the way forward? Drug Discov Today. 2009;14(15-16):804-811. doi:10.1016/j.drudis.2009.05.009

11. Katiyar C, Gupta A, Kanjilal S, Katiyar S. Drug discovery from plant sources: an integrated approach. Ayu. 2012;33(1):10-19. doi:10.4103/0974-8520.100295

12. DiMasi JA, Grabowski HG, Hansen RW. Innovation in the pharmaceutical industry: new estimates of R&D costs. J Health Econ. 2016;47:20-33. doi:10.1016/j.jhealeco.2016.01.012

13. Hay M, Thomas DW, Craighead JL, Economides C, Rosenthal J. Clinical development success rates for investigational drugs. Nat Biotechnol. 2014;32(1):40-51. doi:10.1038/nbt.2786

14. Wong CH, Siah KW, Lo AW. Estimation of clinical trial success rates and related parameters. Biostatistics. 2019;20(2):273-286. doi:10.1093/biostatistics/kxx069

15. Jaiswal YS, Williams LL. A glimpse of Ayurveda - the forgotten history and principles of Indian traditional medicine. J Tradit Complement Med. 2017;7(1):50-53. doi:10.1016/j.jtcme.2016.02.002

16. Patwardhan B, Warude D, Pushpangadan P, Bhatt N. Ayurveda and traditional Chinese medicine: a comparative overview. Evid Based Complement Alternat Med. 2005;2(4):465-473. doi:10.1093/ecam/neh140

17. Vaidya ADB. Reverse pharmacological correlates of Ayurvedic drug actions. Indian J Pharmacol. 2006;38(5):311-315. doi:10.4103/0253-7613.27697

18. Vaidya ADB. Reverse pharmacology - a paradigm shift for drug discovery and development. Curr Res Drug Discov. 2014;1(2):39-44. doi:10.3844/crddsp.2014.39.44

19. Raut AA, Chorghade MS, Vaidya ADB. Reverse pharmacology. In: Patwardhan B, Chaguturu R, editors. Innovative Approaches in Drug Discovery. Cambridge, MA: Academic Press; 2017. p. 89-126. doi:10.1016/B978-0-12-801814-9.00004-0

20. Government of India, Ministry of Health and Family Welfare. Drugs and Cosmetics Rules, 1945: Rule 158-B (requirements for licensing of Ayurvedic, Siddha and Unani patent or proprietary medicines), inserted by the Drugs and Cosmetics (Amendment) Rules, 2010. New Delhi; 2010.

21. Bhatt A. Phytopharmaceuticals: a new drug class regulated in India. Perspect Clin Res. 2016;7(2):59-61. doi:10.4103/2229-3485.179435

22. Rastogi S. Building bridges between Ayurveda and modern science. Int J Ayurveda Res. 2010;1(1):41-46. doi:10.4103/0974-7788.59943

23. Sen S, Chakraborty R. Revival, modernization and integration of Indian traditional herbal medicine in clinical practice: importance, challenges and future. J Tradit Complement Med. 2017;7(2):234-244. doi:10.1016/j.jtcme.2016.05.006

24. Patwardhan B. The quest for evidence-based Ayurveda: lessons learned. Curr Sci. 2012;102(10):1406-1417.

25. Padma TV. Ayurveda. Nature. 2005;436(7050):486. doi:10.1038/436486a

26. Patwardhan B. Where lies the future of Ayurveda-inspired drug discovery? Expert Opin Drug Discov. 2023;18(9):947-949. doi:10.1080/17460441.2023.2232811

27. Mukherjee PK, Harwansh RK, Bahadur S, Banerjee S, Kar A, Chanda J, et al. Development of Ayurveda - tradition to trend. J Ethnopharmacol. 2017;197:10-24. doi:10.1016/j.jep.2016.09.024

28. Narahari SR, Aggithaya MG, Suraj KR. A protocol for systematic reviews of Ayurveda treatments. Int J Ayurveda Res. 2010;1(4):254-267. doi:10.4103/0974-7788.76791

29. Lele RD. Beyond reverse pharmacology: mechanism-based screening of Ayurvedic drugs. J Ayurveda Integr Med. 2010;1(4):257-265. doi:10.4103/0975-9476.74435

30. Gogtay NJ, Bhatt HA, Dalvi SS, Kshirsagar NA. The use and safety of non-allopathic Indian medicines. Drug Saf. 2002;25(14):1005-1019. doi:10.2165/00002018-200225140-00003

31. Saper RB, Phillips RS, Sehgal A, Khouri N, Davis RB, Paquin J, et al. Lead, mercury, and arsenic in US- and Indian-manufactured Ayurvedic medicines sold via the Internet. JAMA. 2008;300(8):915-923. doi:10.1001/jama.300.8.915

32. Thatte U, Bhalerao S. Pharmacovigilance of ayurvedic medicines in India. Indian J Pharmacol. 2008;40(Suppl 1):S10-S12.

33. Parasuraman S, Thing GS, Dhanaraj SA. Polyherbal formulation: concept of Ayurveda. Pharmacogn Rev. 2014;8(16):73-80. doi:10.4103/0973-7847.134229

34. Willcox ML, Graz B, Falquet J, Diakite C, Giani S, Diallo D. A "reverse pharmacology" approach for developing an anti-malarial phytomedicine. Malar J. 2011;10(Suppl 1):S8. doi:10.1186/1475-2875-10-S1-S8

35. World Health Organization. WHO Traditional Medicine Strategy 2014-2023. Geneva: WHO; 2013.

36. Chandra S. Status of Indian medicine and folk healing: with a focus on integration of AYUSH medical systems in healthcare delivery. Ayu. 2012;33(4):461-465. doi:10.4103/0974-8520.110504

37. Government of India, Ministry of Health and Family Welfare. Gazette Notification G.S.R. 918(E): Drugs and Cosmetics (Eighth Amendment) Rules, 2015 - phytopharmaceutical drugs (Schedule Y, Appendix I-B). New Delhi; 30 November 2015.

38. Tharyan P, George AT, Kirubakaran R, Barnabas JP. Reporting of methods was better in the Clinical Trials Registry-India than in Indian journal publications. J Clin Epidemiol. 2013;66(1):10-22. doi:10.1016/j.jclinepi.2011.11.011

39. Chan AW, Tetzlaff JM, Altman DG, Laupacis A, Gotzsche PC, Krleza-Jeric K, et al. SPIRIT 2013 statement: defining standard protocol items for clinical trials. Ann Intern Med. 2013;158(3):200-207. doi:10.7326/0003-4819-158-3-201302050-00583

40. Schulz KF, Altman DG, Moher D; CONSORT Group. CONSORT 2010 statement: updated guidelines for reporting parallel group randomised trials. BMJ. 2010;340:c332. doi:10.1136/bmj.c332

41. Moher D, Hopewell S, Schulz KF, Montori V, Gotzsche PC, Devereaux PJ, et al. CONSORT 2010 explanation and elaboration: updated guidelines for reporting parallel group randomised trials. BMJ. 2010;340:c869. doi:10.1136/bmj.c869

42. Gagnier JJ, Boon H, Rochon P, Moher D, Barnes J, Bombardier C; CONSORT Group. Reporting randomized, controlled trials of herbal interventions: an elaborated CONSORT statement. Ann Intern Med. 2006;144(5):364-367. doi:10.7326/0003-4819-144-5-200603070-00013

43. Franz TJ. Percutaneous absorption on the relevance of in vitro data. J Invest Dermatol. 1975;64(3):190-195. doi:10.1111/1523-1747.ep12533356

44. Ng SF, Rouse JJ, Sanderson FD, Meidan V, Eccleston GM. Validation of a static Franz diffusion cell system for in vitro permeation studies. AAPS PharmSciTech. 2010;11(3):1432-1441. doi:10.1208/s12249-010-9522-9

45. Cheng CW, Wu TX, Shang HC, Li YP, Altman DG, Moher D, et al. CONSORT Extension for Chinese Herbal Medicine Formulas 2017: recommendations, explanation, and elaboration. Ann Intern Med. 2017;167(2):112-121. doi:10.7326/M16-2977

46. Pandey A, Aggarwal A, Seth SD, Maulik M, Juneja A. Strengthening ethics in clinical research. Indian J Med Res. 2011;133(3):339-340.

47. World Medical Association. World Medical Association Declaration of Helsinki: ethical principles for medical research involving human subjects. JAMA. 2013;310(20):2191-2194. doi:10.1001/jama.2013.281053

48. International Council for Harmonisation. Integrated Addendum to ICH E6(R1): Guideline for Good Clinical Practice E6(R2). Geneva: ICH; 2016.

Published

01-10-2026

How to Cite

Kazi, S., Manaswi Rajurkar, & Chirag Warty. (2026). Bridging Two Paradigms: A Reverse-Pharmacology Framework for CTRI/ICMR-Compliant Ayurvedic Clinical Trial Design. Ayurline: International Journal of Research in Indian Medicine, 10(06). https://doi.org/10.52482/ayurline.v10i06.1120