POA DOCUMENT

POWER OF ATTORNEY

(For Executing Form ID and Forms 3, 4 and 5)

Know all by these presents, that the undersigned hereby constitutes
and appoints each of Brent Siler, James F. Fulton, Jr., Meredith Blount
and Derek Colla of Cooley LLP, and John Limongelli, Rosamond Deegan and
Roberto Cuca of Trevena, Inc. (the Company), signing individually, the
undersigned's true and lawful attorneys-in fact and agents to:

(1) Prepare, execute in the undersigned's name and on the
undersigned's behalf, and submit to the the Securities and Exchange
Commission (the SEC) Form ID and Forms 3, 4 and 5 (including amendments
thereto and joint filing agreements in connection therewith) in
accordance with Section 16(a) of the Securities Exchange Act of 1934, as
amended (the Exchange Act) and the rules thereunder in the undersigned's
capacity as an officer, director or beneficial owner of more than 10% of
a registered class of securities of the Company;

(2) Do and perform any and all acts for and on behalf of the
undersigned that may be necessary or desirable to prepare and execute any
such Form ID and Forms 3, 4 or 5 (including amendments thereto and joint
filing agreements in connection therewith) and file such forms with the
SEC and any stock exchange, self-regulatory association or any similar
authority; and

(3) Take any other action of any type whatsoever in connection
with the foregoing that, in the opinion of such attorney-in-fact, may be
of benefit to, in the best interest of, or legally required of the
undersigned, it being understood that the documents executed by the
attorney-in-fact on behalf of the undersigned pursuant to this Power of
Attorney shall be in such form and shall contain such terms and
conditions as the attorney-in-fact may approve in the attorney-in-fact's
discretion.

The undersigned hereby grants to each such attorney-in-fact full
power and authority to do and perform any and every act and thing
whatsoever requisite, necessary, or proper to be done in the exercise of
any of the rights and powers herein granted, as fully to all intents and
purposes as the undersigned might or could do if personally present, with
full power of substitution or revocation, hereby ratifying and confirming
all that such attorney-in-fact, or such attorney-in-fact's substitute or
substitutes, shall lawfully do or cause to be done by virtue of this
power of attorney and the rights and powers herein granted. The
undersigned acknowledges that the foregoing attorneys-in-fact, and their
substitutes, in serving in such capacity at the request of the
undersigned, are not assuming (nor is the Company assuming) any of the
undersigned's responsibilities to comply with Section 16 of the Exchange
Act.

This Power of Attorney shall remain in full force and effect until
the earliest to occur of (a) the undersigned is no longer required to
file Form ID or Forms 3, 4 and 5 with respect to the undersigned's
holdings of and transactions in securities issued by the Company, (b)
revocation by the undersigned in a signed writing delivered to the
Company and the foregoing attorneys-in fact or (c) as to any attorney-in-
fact individually, until such attorney-in-fact is no longer employed by
the Company or Cooley LLP, as applicable.

IN WITNESS WHEREOF, the undersigned has caused this Power of
Attorney to be executed as of the date written below.


Date: June 10, 2014

By: /s/ Julie McHugh
Name: Julie McHugh