Termination of Certain Provisions for Triggering Event. In the event that a Competitor, either alone or together with its Affiliates, acquires, directly or indirectly, fifty percent (50%) or more of the voting stock of PTC or any of its Affiliates, or all or substantially all of the assets of PTC or its Affiliates related to the PTC Patents and PTC Know-How, whether through merger, consolidation, acquisition or otherwise, or in the event that PTC or any of its Affiliates engages in the Research, Development or Commercialization of a product for the treatment of HCV (either alone or in collaboration with a Third Party) other than pursuant to this Agreement (a "PTC Triggering Event"), Schering shall have the right to terminate the provisions of Article 3 upon written notice to PTC; provided, however, in the event that such PTC Triggering Event occurs prior to the end of the Research Term, then the termination of Article 3 pursuant to this Section 11.6(a) shall not apply to the JSC's oversight and direction of the Research Program unless, following such Triggering Event, PTC or its Affiliates continues to engage in the Research, Development or Commercialization of a product for the treatment of HCV (either alone or in collaboration with a Third Party). In the event that Schering exercises its right to terminate the provisions of Article 3, then the following additional provisions shall also terminate: Sections 4.3, 4.5, 4.6, 4.8, 4.10(c), PTC's participation rights under Sections 4.10(b) and Section 4.13. In addition, should the PTC Triggering Event occur at any time prior to the expiration of the Research Term, Schering shall also have the right to terminate the Research Program upon sixty (60) days prior written notice to PTC. Notwithstanding anything in this Section 11.6(a) to the contrary, a PTC Triggering Event shall not include any internal PTC Research efforts not undertaken through, or as part of, a collaboration or licensing arrangement with a Third Party. For the avoidance of doubt, subcontracting to perform aspects of PTC's internal Research efforts on behalf of PTC shall not be deemed to be a collaboration or licensing arrangement with a Third Party.
