Related Party Transactions	12 Months Ended
Dec. 31, 2019
Related Party Transactions [Abstract]
RELATED PARTY TRANSACTIONS	NOTE 11 – RELATED PARTY TRANSACTIONS As part of the Company’s collaboration agreement with Takeda the Company recognized a long-term liability representing long-term prepaid expenses to be reimbursed to Takeda. On March 24, 2019, the Company entered into a separation and consulting agreement with Dr. Matthew During in connection with Dr. During’s resignation as President and Chief Scientific Officer with the Company effective as of April 1, 2019. Pursuant to the separation and consulting agreement, Dr. During agreed to non-solicit and non-compete covenants through such time as he remains a consultant to the Company, as well as a general release of claims in connection therewith. Dr. During agreed to a three-year consulting arrangement, pursuant to which he will be paid, amongst other specific milestone and meeting related fees, $150,000 per year for his role as the Chairman of the Company’s Scientific Advisory Board and $150,000 per year for other advisory and consulting services. Further, Dr. During was granted options to acquire 100,000 shares of common stock at an exercise price of $1.76 per share, the fair market value on April 1, 2019, which options shall vest in full upon completion of a specific clinical milestone, subject to Dr. During’s continued service through such vesting date. In the event such option does not vest by December 31, 2020, the stock option will expire. Provided further, in recognition of Dr. During’s service on the Scientific Advisory Board, Dr. During was granted options to acquire 75,000 shares of common stock at an exercise price equal to $1.76 per share, the fair market value on April 1, 2019. Either Dr. During or the Company may terminate the consulting arrangements pursuant to the Consulting Agreement in accordance with its terms, at any time and for any reason, upon thirty (30) days written notice to the other party. Upon such termination, the Company will have no further obligations to Dr. During, including any obligation to pay further consulting fees. In the February Offering, the Company issued and sold an aggregate of 6,325,000 shares of common stock and 2,500 shares of Series A Preferred Stock to entities affiliated with Takeda, its collaboration partner and an existing stockholder, entities affiliated with Biotechnology Value Fund, L.P., an existing stockholder, and Dr. Jeremy M. Levin, its Chief Executive Officer and Chairman, for aggregate gross proceeds of $17.7 million. In the October Offering, the Company issued and sold an aggregate of 4,058,000 shares of common stock and 2,000 shares of Series A Preferred Stock to entities affiliated with Takeda, its collaboration partner and an existing stockholder, entities affiliated with Biotechnology Value Fund, L.P., an existing stockholder, and Dr. Jeremy M. Levin, its Chief Executive Officer and Chairman, for aggregate gross proceeds of $10.2 million. In September 2019, the Company entered into an exchange agreement with the Exchanging Stockholders pursuant to which the Company exchanged an aggregate of 1,262,000 shares of the Company’s common stock owned by the Exchanging Stockholders for an aggregate of 1,262 shares of the Company’s Series A Preferred Stock.

Related Party Transactions

12 Months Ended

Dec. 31, 2019

NOTE 11 – RELATED PARTY TRANSACTIONS

As part of the Company’s collaboration agreement with Takeda the Company recognized a long-term liability representing long-term prepaid expenses to be reimbursed to Takeda.

On March 24, 2019, the Company entered into a separation and consulting agreement with Dr. Matthew During in connection with Dr. During’s resignation as President and Chief Scientific Officer with the Company effective as of April 1, 2019. Pursuant to the separation and consulting agreement, Dr. During agreed to non-solicit and non-compete covenants through such time as he remains a consultant to the Company, as well as a general release of claims in connection therewith. Dr. During agreed to a three-year consulting arrangement, pursuant to which he will be paid, amongst other specific milestone and meeting related fees, $150,000 per year for his role as the Chairman of the Company’s Scientific Advisory Board and $150,000 per year for other advisory and consulting services. Further, Dr. During was granted options to acquire 100,000 shares of common stock at an exercise price of $1.76 per share, the fair market value on April 1, 2019, which options shall vest in full upon completion of a specific clinical milestone, subject to Dr. During’s continued service through such vesting date. In the event such option does not vest by December 31, 2020, the stock option will expire. Provided further, in recognition of Dr. During’s service on the Scientific Advisory Board, Dr. During was granted options to acquire 75,000 shares of common stock at an exercise price equal to $1.76 per share, the fair market value on April 1, 2019. Either Dr. During or the Company may terminate the consulting arrangements pursuant to the Consulting Agreement in accordance with its terms, at any time and for any reason, upon thirty (30) days written notice to the other party. Upon such termination, the Company will have no further obligations to Dr. During, including any obligation to pay further consulting fees.

In the February Offering, the Company issued and sold an aggregate of 6,325,000 shares of common stock and 2,500 shares of Series A Preferred Stock to entities affiliated with Takeda, its collaboration partner and an existing stockholder, entities affiliated with Biotechnology Value Fund, L.P., an existing stockholder, and Dr. Jeremy M. Levin, its Chief Executive Officer and Chairman, for aggregate gross proceeds of $17.7 million.

In the October Offering, the Company issued and sold an aggregate of 4,058,000 shares of common stock and 2,000 shares of Series A Preferred Stock to entities affiliated with Takeda, its collaboration partner and an existing stockholder, entities affiliated with Biotechnology Value Fund, L.P., an existing stockholder, and Dr. Jeremy M. Levin, its Chief Executive Officer and Chairman, for aggregate gross proceeds of $10.2 million.

In September 2019, the Company entered into an exchange agreement with the Exchanging Stockholders pursuant to which the Company exchanged an aggregate of 1,262,000 shares of the Company’s common stock owned by the Exchanging Stockholders for an aggregate of 1,262 shares of the Company’s Series A Preferred Stock.