The costs and expenses incurred by the Parties in connection with defense of any claim described in Section 6.4.1 shall be [***], unless otherwise agreed in writing by the Parties. For clarity, this Section 6.4.2 is intended to address [***], and if as a result of any such defense of such claim in the [***] Territory, Celgene [***], Section 5.4.2 may apply to [***].