Exhibit T3A.17

Number 566448 Duplicate for the File

Certificate of Incorporation

I hereby certify that

AMRYT PHARMACEUTICALS DESIGNATED ACTIVITY COMPANY

is this day incorporated under

the Companies Act 2014,

and that the company is

a Designated Activity Company

Given under my hand at Dublin, this

Monday, the 17th day of August, 2015

/s/ Registrar

for Registrar of Companies