Form: 4

Statement of changes in beneficial ownership of securities

October 8, 2020

POWER OF ATTORNEY

Published on October 8, 2020

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 Barry Shin, Scott Applebaum and
Joel Solomon 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 andjoint 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.

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

By: /s/ Robert Yoder
Name: Robert Yoder
Date: 7/23/2020 Title: Senior Vice President,
Chief Business Officer