# The Medicines (Exemption from Licences) (Clinical Trials) Order 1995, Paragraph 3


The method of synthesis of any active constituent where such change will affect the range or level of impurities produced.

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Source: https://www.legislation.gov.uk/uksi/1995/2808/schedule/3/paragraph/3 (the official version)
Page: https://openlegislation.uk/medicines-exemption-from-licences-clinical-trials-order-1995/schedule-3/paragraph-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.