Acceptance of this document constitutes agreement by the recipient that no information contained herein will be published or disclosed without prior written authorization from an official of Aduro Biotech, Inc. However, this document m ay be disclosed to appropriate Institutional Review Board and Ethics Committees or duly authorized representatives of a national regulatory authority under the condition that they are requested to keep it confidential. In the event of an actual or suspected breach of this obligation, Aduro Biotech, Inc. should be notified promptly. NCT Number: NCT01675765 Aduro Biotech, Inc. CONFIDENTIAL Protocol ADU -CL-02 Final Version 1 Page 3 of 24 04MAY2018 TABLE OF CONTENTS Section Page SIGNATURE PAGE ................................ ................................