Common use of Research Plan Framework Clause in Contracts

Research Plan Framework. Each Research Plan will provide a framework for the applicable Research Program. Each Research Plan will include the following activities (all as will be more specifically set forth in the applicable Research Plan): 2.2.1.1. Merck will deliver to Mersana specified quantities of [***]. 2.2.1.2. Mersana will use Commercially Reasonable Efforts to [***] set forth in the Research Plan. 2.2.1.3. Mersana will deliver to Merck [***] as contemplated under the Research Plan or otherwise agreed to by the Parties. 2.2.1.4. Non-GLP Toxicology Studies and GLP Toxicology Studies with respect to such ADC Materials will be conducted by Mersana or Merck, as specified in the applicable Research Plan. 2.2.1.5. Each Research Plan will include a budget for Mersana’s activities thereunder, including with respect to FTEs to be provided by Mersana and Research Fees to be included thereunder. 2.2.1.6. [***] Antibodies (a) In the event that a Research Program involves the use of a [***]. (b) In the event that a Research Program involves the use of a [***].

Research Plan Framework. Each Research Plan will provide a framework for the applicable Research Program. Each Research Plan will include the following activities (all as will be more specifically set forth in the applicable Research Plan): 2.2.1.1. Merck will deliver to Mersana specified quantities of [***]. 2.2.1.2. Mersana will use Commercially Reasonable Efforts to [***] set forth in the Research Plan. 2.2.1.3. Mersana will deliver to Merck [***] as contemplated under the Research Plan or otherwise agreed to by the Parties. 2.2.1.4. Non-GLP Toxicology Studies and GLP Toxicology Studies with respect to such ADC Materials will be conducted by Mersana or Merck, as specified in the applicable Research Plan. 2.2.1.5. Each Research Plan will include a budget for Mersana’s activities thereunder, including with respect to FTEs to be provided by Mersana and Research Fees to be included thereunder. 2.2.1.6. [***] Antibodies (a) In the event that a Research Program involves the use of a [***]. (b) In the event that a Research Program involves the use of a [***]. [***] Portions of this exhibit have been redacted pursuant to a confidential treatment request. An unredacted version of this exhibit has been filed separately with the Commission.

Research Plan Framework. Each Research Plan will provide a framework for the applicable Research Program. Each Research Plan will include the following activities (all as will be more specifically set forth in the applicable Research Plan): 2.2.1.1. Merck will deliver to Mersana specified quantities of [***]. 2.2.1.2. Mersana will use Commercially Reasonable Efforts to [***] set forth in the Research Plan. 2.2.1.3. Mersana ▇▇▇▇▇▇▇ will deliver to Merck [***] as contemplated under the Research Plan or otherwise agreed to by the Parties. 2.2.1.4. Non-GLP Toxicology Studies and GLP Toxicology Studies with respect to such ADC Materials will be conducted by Mersana or Merck, as specified in the applicable Research Plan. 2.2.1.5. Each Research Plan will include a budget for Mersana▇▇▇▇▇▇▇’s activities thereunder, including with respect to FTEs to be provided by Mersana ▇▇▇▇▇▇▇ and Research Fees to be included thereunder. 2.2.1.6. [***] Antibodies (a) In the event that a Research Program involves the use of a [***]. (b) In the event that a Research Program involves the use of a [***].