**EXHIBIT      10.2**

**ASSIGNMENT      AND ASSUMPTION AGREEMENT **

**WHEREAS**

**WHEREAS**

**WHEREAS**

**WHEREAS**

**WHEREAS**

**WHEREAS**

**WHEREAS**

**NOW,      THEREFORE BE IT RESOLVED,**

| 1.   | Assignment                and Assumption. |
|----------------|-------------------------------------------|

| (a)   | Assignor                hereby assigns to Assignee all of the Assigned Rights and Obligations,                and                Assignee hereby assumes all of the Assigned Rights and                Obligations. |
|-----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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| (b)   | Assignee                assumes, and agrees to pay and perform, all unperformed obligations                of                Assignor with respect to the Assigned Rights and Obligations, and                agrees                to be bound by the provisions of the Agreement, as if it were an                original                signatory thereto, and Assignor shall have no further obligations                under                the Agreement. |
|-----------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 2.   | Binding                Effect; Successors and Assigns.                The provisions of this Assignment shall be binding upon and inure                to the                benefit of the parties hereto and their respective successors and                permitted assigns as set forth in the next sentence. This Assignment                may                not be assigned by any party hereto without the prior written consent                of                each of the other parties hereto. |
|----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 3.   | Amendment;                Waiver.                This Assignment may be amended only by a written instrument signed                by all                the parties hereto. No waiver by any party hereto of any provision                hereof                shall be effective unless set forth in a writing executed by the                party so                waiving. |
|----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 4.   | Governing                Law.                This Assignment shall be governed by and construed in accordance                with the                laws of the State of New York (without regard to conflict of law                principles). |
|----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 5.   | Counterparts.                This Assignment may be executed in any number of counterparts, and                each                such counterpart shall be deemed to be an original instrument, but                all                such counterparts together shall constitute but one                agreement. |
|----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 6.   | Entire                Agreement.                This Assignment supersedes any other agreement, whether written or                oral,                that may have been made or entered into by the parties hereto relating                to                the matters contemplated hereby and constitutes the entire agreement                of                the parties. |
|----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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|   | **ASSIGNOR:** KERYX                BIOPHARMACEUTICALS, INC.  By:/s/                Michael                S.                Weiss                                             Name:                Michael                S.                Weiss                                       Title:                Chairman                and                CEO                                                             |
|--------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   | **ASSIGNEE:** AOI                PHARMACEUTICALS, INC.  By:/s/                  Michael                  S.                  Weiss                                               Name:                Michael                S.                Weiss                        Title:President                                         |

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