Thank you, Avi. Good afternoon, everyone and thank you for joining today's call. First, as the COVID pandemic continues to evolve in the US and abroad, we wish all safety and good health for you and your loved ones. We remain committed to executing our goals with INSPIRE and beyond. We remain focused on INSPIRE data readout and will speak more about the COVID pandemic shortly. Onconova has had a productive second quarter and exceeded the quarter carrying a significant momentum into the second half of 2020. As previously indicated, our pivotal Phase 3 INSPIRE trial recently achieved the required number of survival events to allow for data analysis, and we anticipate top-line data readout by the end of September. COVID has made access to the hospitals and clinics more difficult so data verification of key date such as survival and the most recent clinical encounters are more difficult to verify. But verify we must and we shall. Following top-line data readout, we expect to present more details data at a major medical meeting later this year. The meeting to be identified based on timelines. Of note most if not all major medical meetings are now virtual. To shorten the timelines for our anticipated new drug applications or NDA submission to the FDA, we've already begun NDA preparation prior to data readout. We are working also with regulatory consultancy experts on our NDA document for the US FDA for both the clinical and manufacturing modules of the NDA, as well as on the marketing authorization application or MAA document for the European Medicine Agency. We anticipate that this initial work will put us in a position to expedite our health authority applications when data becomes available. As part of this process, our clinical team under Ric Woodman's leadership is preparing for a Pediatric Investigational Plan or PIP, an important component of the MAA. We are also advancing our plans to be ready for commercialization, including the recent announcement of the election of a commercial expert Terri Shoemaker to our Board of Directors. Terri was instrumental in the successful, commercialization of azacitidine, the most commonly used hypomethylating agent in the world for high risk MDS. As you recall, INSPIRE is an open label randomized controlled international study designed to determine the efficacy, safety and tolerability of single agent intravenous rigosertib in the treatment of patients with second line high risk MDS. Patients in the study are less than 82 years of age, and have progressed or relapsed or failed to respond to previous treatment with the standard of care. A hypomethylating agent also called an HMA. The study randomized patients to receive either rigosertib with best supportive care or the physician's choice of therapy with best supportive care. The primary endpoint of this study is overall survival of all randomized patients in the intent to treat population. There is a second opportunity for an FDA approval which is the sequential analysis of the overall survival of the very high risk MDS sub as defined by the revised international prognostic scoring system. Should intravenous rigosertib demonstrate a survival advantage compared to physician's choice of therapy on the INSPIRE trial in a statistically significant manner; we believe rigosertib could be a major advance for high risk second line MDS patients with a novel mechanism of action. Hopefully broader and additional novel indications will follow. Beyond our progress with INSPIRE, a highlight of the quarter was the initiation of an investigator-initiated Phase 1/2 trial of oral rigosertib plus the immune checkpoint inhibitor Nivolumab in advanced metastatic KRAS positive lung adenocarcinoma. Over half of non-small cell lung cancers are classified as lung adenocarcinoma, and of these the largest subset has a KRAS mutation as the predominant genetic driver. Given their utility in multiple cancer settings, checkpoint inhibitors are among the world's top selling pharmaceutical products and continue to obtain FDA approval for broader indications. In our view, this makes our novel combination approach with rigosertib, a potentially meaningful option to pursue in lung cancer. We hope this will offer patients who have progressed on first line therapy, a second line approach. We are also initiating studies in other RAS pathway driven cancers as part of our investigator-initiated development program. Onconova has also recently featured pipeline developments in multiple venues. At the European Hematology Association's virtual conference in June, we announced updated aggregated baseline genomic data from HMA failure patients screened and entered into the INSPIRE trial. Briefly, the presentations show that RAS pathway mutations in these higher risk MDS patients were observed more frequently in patients who progress on HMA therapy as defined by the international working group's definition of progression compared to those who fail to respond to HMA therapy. In fact, in this study patients with mutations of the RAS pathway had a higher likelihood of progression on hypomethylating agents than those with TP-53 mutations, a well-recognized genomic abnormality predicting for progression in a number of cancers. We believe this is informative to the potential role of RAS targeting agents such as rigosertib and to our knowledge this mutational analysis is among the largest such databases to be collected. Patients on the rigosertib and physician's choice arms will have repeat analysis of their genomic status performed as part of the INSPIRE trial. Following the close of the second quarter, Onconova also announced the publication of Phase 1 data with the combination of all rigosertib plus azacitidine and higher risk MDS and AML in the journal Leukemia Research. A key strategy emerging in the treatment of MDS is the identification of safe and effective combination, particularly those involving oral agents. We anticipate meeting with the FDA in conjunction with the pivotal data readout from the INSPIRE trial for alignment with the agency on a registration trial for the combination of all rigosertib plus azacitidine IN HMA naive high-risk MDS. We look forward to these interactions with the agency. In the Journal Molecular Cell, we also announced the publication of additional pre-clinical data supporting rigosertib's mechanism of action as a last targeted anti-cancer therapy. Onconova believes this data sheds light on the ability of rigosertib to modulate the RAS pathway. We also disclose that we have embarked on early pre-clinical work exploring rigosertib potential in COVID-19. The background for this is as follows: These pre-clinical studies follow a presentation at Ash in 2019 suggesting the ability of rigosertib to upregulate viral defense pathways such as interferon. It is hypothesized that the immune system may play a role in the pathogenesis of MDS, and immune modulation has been studied in MDS. More recent pre-clinical studies conducted with rigosertib demonstrated impressive inhibition of SARS-COV-2 replication in Vero cells when compared to controls, and provide the company with optimism that further research in humans infected with SARS-COV-2 is warranted. In late July, Onconova announced that it has applied to the National Institute of Allergy and Infectious Diseases or NIAID and also to border the Biomed Advanced Research and Development Authority to seek funding and to participate in therapeutic trials under the NIH umbrella to conduct human studies with rigosertib. We caution that our work in COVID-19 is very early, and the need for therapeutics and effective vaccines is evolving rapidly as the pandemic continues in various geographies across the globe. Hence, we cannot predict what the outcome of our efforts will be. We hope to provide greater clarity sometime during the second half of this year. In addition to the U.S., we have the rights to rigosertib in Europe and China and other key markets around the world. Beyond rigosertib ON 123300 is our first in class inhibitor of CDK4/6 and ARK5. We believe ON 123300 has the potential to treat numerous cancers, including the refractory metastatic breast cancer with CDK4/6 inhibitors are already commercially available. CDK inhibitors have emerged as promising products and compounds targeting very large cancer indications such as hormone receptor positive metastatic breast cancer. Due to its unique targeting of ARK5, as well as CDK4/6, we believe ON 123300 could overcome many of the existing products limitations, potentially making it suitable for certain cancers that may not be responsible, responsive sorry, to the current generation of CDK4/6 inhibitors. We are successful; we believe this product candidate could address a very large market opportunity. We maintain global rights for ON 123300 outside of China. Our partner in China for this compound is HanX Biopharmaceuticals. HanX funded the Chinese IND enabling studies. The Chinese IND was approved in January 2020 by the Chinese health authorities; we anticipate a Phase 1 study may begin in China in the second half of 2020. We also intend for the Chinese IND enabling studies to comply with FDA regulations. For the U.S., we plan to file a U.S. IND in the fourth quarter of 2020. And now, I'd like to turn the call over to Mark Guerin, our Chief Financial Officer for a discussion about financial results for second quarter 2020. Mark?