POWER OF ATTORNEY

       Know all by these presents, that the undersigned on behalf of
RusnanoMedInvest LLC hereby authorizes David  J. Mazzo, the President and Chief
Executive Officer of Regado Biosciences, Inc. (the "Company"), and Christopher
E. Courts, the Vice President, Finance of the Company, or either of them signing
singly, and with full power of substitution, the undersigned's true and lawful
attorneys-in-fact to:

       (1) execute for and on behalf of the undersigned, in the undersigned's
       capacity as an officer and/or director of the Company, Forms 3, 4, and 5
       in accordance with Section 16(a) of the Securities Exchange Act of 1934,
       as amended, and the rules thereunder;

       (2) do and perform any and all acts for and on behalf of the undersigned
       which may be necessary or desirable to complete and execute any such Form
       3, 4, or 5, complete and execute any amendment or amendments thereto, and
       timely file such form with the United States Securities and Exchange
       Commission and any stock exchange or similar authority; and

       (3) take any other action of any type whatsoever in connection with the
       foregoing which, in the opinion of such attorneys-in- fact, may be of
       benefit to, in the best interest of, or legally required by, the
       undersigned, it being understood that the documents executed by such
       attorneys-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 such attorneys-in-fact may approve in such attorneys-in-
       fact's discretion.

       The undersigned on behalf of RusnanoMedInvest LLC hereby grants to the
foregoing attorneys-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 attorneys-in-fact, or such attorneys-in-fact's designated 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, 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 Securities
Exchange Act of 1934, as amended, and the rules thereunder.

       This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4, and 5 with respect to the
undersigned's holdings of and transactions in securities issued by the Company,
unless earlier revoked by the undersigned in a signed writing delivered to the
foregoing attorneys -in-fact.

       IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
be executed as of this 30th day of August, 2013.

                             RusnanoMedInvest LLC


                             By:  /s/ Vladimir Gurdus
                                  ---------------------------------------
                                  Name: Vladimir Gurdus
                                  Title: Direct of D-Pharma, LLC, the management
                                         company of RusnanoMedInvest LLC