PTC Therapeutics (PTCT) 8-K PTC Therapeutics Successfully Completes Acquisition of Agilis Biotherapeutics

Exhibit 23.1

CONSENT OF INDEPENDENT AUDITORS

PTC Therapeutics, Inc.

South Plainfield, New Jersey

We hereby consent to the incorporation by reference in the Registration Statements on Form S­3 (No. 333-220151) and Form S-8 (No. 333-194323, 333-189962, 333-203485, 333-208830, 333-211997, 333-215407, and 333-222391) of PTC Therapeutics, Inc. of our report dated August 21, 2018, relating to the consolidated financial statements, which appears in this Current Report on Form 8-­K dated August 24, 2018.

/s/ BDO USA, LLP

Boston, Massachusetts

August 24, 2018