AstraZeneca AB and Another v KRKA dd Novo Mesto and Another, England and Wales Court of Appeal (Longmore, Kitchin and Floyd LJJ), London, UK, 21 May 2015, Neutral Citation Number:  EWCA Civ 484
In order to obtain a preliminary injunction against Krka, AstraZeneca had given a cross-undertaking in damages. When the injunction was lifted by consent, damages became due to Krka. In this case, the Court of Appeal of England and Wales affirmed the judgment of Sales J (as he then was) in determining the quantum of those damages.
Broadly the Court of Appeal applied the principles set out in prior case law for determining quantum of liability. The application of the legal standards in this case was not without difficulty because of the very complicated factual circumstances at issue. This judgment has provided guidance for how the amount of loss should be calculated when the assessment is necessarily speculative, and about highly complex features of a market.