2. COMPARATOR DRUGS SOURCING PROCESS 2.3. Identification of the supply strategy to be used 2.3.1. Selection and communication of a comparator for a clinical trial The comparator sourcing process should begin approximately 9-12 months before the comparator is received. This should allow for contingency and to identify the best strategic option for the complete duration

1. INTRODUCTION 1.1. Overview A comparator drugs, also known as a reference drug, is one that is included in a clinical study for the purpose of making comparisons of its performance in a defined population. Comparisons may be made in terms of a combination of factors such as: Efficacy, safety, ease of use, patient compliance.