Common use of Target Substitution Clause in Contracts

Target Substitution. Subject to Section 2.3.6, at any time prior to the [**] with respect to a given Initial Target or its applicable Substitute Target, Pfizer may, through written notice to Arvinas, replace such Target as further provided below. In Pfizer’s written notice, Pfizer will provide the Initial Target to be replaced and will propose a potential Substitute Target (the “Target Substitution Notice”). Arvinas will notify Pfizer in writing within [**] after the delivery of the Target Substitution Notice if the proposed Substitute Target is an Excluded Target. Otherwise, such proposed Substitute Target shall be deemed accepted by Arvinas. Provided that the proposed Substitute Target is accepted as provided above, such Substitute Target shall become a Target for all purposes under this Agreement and the replaced Initial Target or prior Substitute Target, as applicable, shall cease to be a Target for all purposes under this Agreement. [**] The Parties shall agree on the Research Plan for each Substitute Target that becomes a Target promptly following issuance of the relevant Target Substitution Notice, which Research Plan shall be substantially similar to the completed Research Plans attached to this Agreement as of the Effective Date, unless otherwise agreed in writing by the Parties.