FEATURES OF NDCT RULES The NDCT Rules have come into force from March 19, 2019 onwards, except for Chapter IV, which shall come into effect 180 days after publication in the Gazette, i.e. 180 days after March 19, 2019. Rule 2(w) defines a “new drug” to include, inter alia, ‘a drug, including active pharmaceutical ingredient or phytopharmaceutical drug, which has not been used in the country to any significant extent’, ‘a drug approved by the Central Licensing Authority for certain claims and proposed to be marketed with modified or new claims’, ‘a fixed dose combination of two or more drugs, approved separately for certain claims and proposed to be combined for the first time in a fixed ratio’, ‘a modified or sustained release form of a drug or novel drug delivery system of any drug approved by the Central Licensing Authority’, or ‘a vaccine, recombinant Deoxyribonucleic Acid (r-DNA) derived product, living modified organism, monoclonal anti-body, stem cell derived product, gene therapeutic product or xenografts, intended to be used as drug’. Stem cell based products are, therefore, also deemed to be “new drugs” under the NDCT Rules. The NDCT Rules are applicable to, and regulate, all new drugs, investigational new drugs for human use, clinical trials, bioequivalence studies, bioavailability studies and Ethics Committees.