• Top-line data, including the primary endpoint of mean change in best corrected visual acuity at six months, from the randomized Phase 2 AVANTE trial of DE-122 in patients with wet AMD are expected in the first half of 2020.  In this trial DE-122 is being combined with Lucentis and being compared with Lucentis single agent treatment.
   
• The Phase 2 POC data from the Phase 1/2 clinical trial of TRC253 in metastatic castrate resistant prostate cancer is now expected in the first half of 2020, whereupon Janssen have an exclusive option to reacquire full rights to TRC253 for an opt-in payment of $45 million to TRACON, and obligations to pay regulatory and commercialization milestones totaling up to $137.5 million upon achievement of specified events, in addition to a low single-digit royalty on net sales. If Janssen does not opt in TRACON can advance TRC253 independently, in which case TRACON would owe Janssen up to $45 million upon achievement of specified events, in addition to a low single-digit royalty on net sales.
  
  
• Top line data for the Phase 1 dose escalation study of TJ004309, a CD73 antibody, as a single agent and in combination with Tecentriq, a marketed PD-L1 antibody being supplied by Roche, is expected in the second half of 2020.  We are developing TJ004309 in collaboration with I-Mab Biopharma.
   
• Nomination and IND filing of the initial bispecific antibody (BsAb) from the I-Mab pipeline is expected in the second half of 2020.  The I-Mab pipeline includes PD-L1 x IL-7, PD-L1 x CD47, PD-L1 x CD73, PD-L1 x B7-H3, and PD-L1 x 4-1BB antibodies. TRACON and I-Mab previously entered into a cost-sharing product development collaboration whereby TRACON will be responsible for the regulatory and clinical development of up to five of the BsAbs in North America and Europe, with the majority of the development effort expected to occur in the U.S. TRACON will bear the costs of early phases of clinical trials and I-Mab will share the costs for more advanced development stages and commercialization. TRACON will share the North America rights of any selected BaAbs with I-Mab for each collaborative program and retains an opt-in right to in-license the BsAbs from I-Mab ex-greater China.

• Cash, cash equivalents and short-term investments were $19.1 million at September 30, 2019 compared to $39.1 million at December 31, 2018.  We expect our current cash, cash equivalents and short-term investments to fund operations into the third quarter of 2020.
   
• Research and development expenses for the third quarter of 2019 were $3.1 million compared to $7.0 million for the third quarter of 2018. The decrease was primarily attributable to lower manufacturing expenses and clinical trial expenses due to the discontinuation of the TRC105 program.
   
• General and administrative expenses for the third quarter of 2019 were $2.0 million compared to $2.1 million for the third quarter of 2018.
   
• Net loss for the third quarter of 2019 was $5.2 million compared to $9.1 million for the third quarter of 2018.

TRC253 is a novel, orally bioavailable small molecule drug that is a potent, high affinity competitive inhibitor of the androgen receptor (AR) and AR mutations, including the F877L mutation. The AR F877L mutation results in an alteration in the AR ligand binding domain that confers resistance to therapies for prostate cancer. Therapies targeting the AR have demonstrated clinical efficacy by extending time to disease progression, and in some cases, the survival of patients with metastatic castration-resistant prostate cancer. However, resistance to these agents is often observed and several molecular mechanisms of resistance have been identified, including gene amplification, overexpression, alternative splicing, and point mutation of the AR. TRC253 is currently being studied in a Phase 1/2 clinical trial in prostate cancer. For more information about the clinical trial, please visit TRACON's website at www.traconpharma.com/clinical_trials.php

TRACON develops targeted therapies for cancer and ophthalmic diseases. The Company's clinical-stage pipeline includes: DE-122, the ophthalmic formulation of carotuximab, an endoglin antibody that is being developed for patients with wet AMD through a license to Santen Pharmaceutical Company Ltd.; TRC102, a small molecule drug being developed for the treatment of lung cancer; TRC253, a small molecule drug being developed for the treatment of prostate cancer; and TJ004309, a CD73 antibody being developed for the treatment of advanced solid tumors. TRACON is actively seeking additional corporate partnerships whereby it leads regulatory and clinical development and shares in the cost and risk of clinical development and leads U.S. commercialization.  In these partnerships TRACON believes it can serve as a solution for companies without clinical and commercial capabilities in the U.S.  To learn more about TRACON and its product candidates, visit TRACON's website at www.traconpharma.com.

Statements made in this press release regarding matters that are not historical facts are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Because such statements are subject to risks and uncertainties, actual results may differ materially from those expressed or implied by such forward‐looking statements. Such statements include, but are not limited to, statements regarding TRACON's plans to further develop product candidates, expectations regarding the timing and scope of clinical trials and availability of clinical data, expected development milestones, estimated cash runway, potential access to future capital, potential utility of product candidates, potential events under collaboration and license agreements, and TRACON's business development strategy and goals to enter into additional collaborations. Risks that could cause actual results to differ from those expressed in these forward‐looking statements include: risks associated with clinical development; whether TRACON or others will be able to complete or initiate clinical trials on TRACON's expected timelines, if at all; the fact that future preclinical studies and clinical trials may not be successful or otherwise consistent with results from prior studies; the fact that TRACON has limited control over whether or when third party collaborators complete on-going trials or initiate additional trials of TRACON's product candidates; the fact that TRACON's collaboration agreements are subject to early termination; whether TRACON will be able to enter into additional collaboration agreements on favorable terms or at all; whether and when any bispecific antibodies are developed under TRACON's collaboration with I-Mab; potential changes in regulatory requirements in the United States and foreign countries; TRACON's reliance on third parties for the development of its product candidates, including the conduct of its clinical trials and manufacture of its product candidates; whether TRACON will be able to obtain additional financing; the possibility of unexpected expenses or other uses of TRACON's cash resources; and other risks described in TRACON's filings with the Securities and Exchange Commission under the heading "Risk Factors". All forward‐looking statements contained in this press release speak only as of the date on which they were made and are based on management's assumptions and estimates as of such date. TRACON undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made.