Spiro Rombotis
Analyst · Ladenburg Thalmann
Thank you, Grace, and thank you, everyone, for joining us today for our quarterly business update. We are on track to deliver key data readouts over the coming months from our 2 clinical programs. In the fadra 065-101 study in patients with solid tumors and lymphoma, we are enrolling at dose level 6A. Pharmacokinetic and pharmacodynamic data from this dose level suggests that we are achieving predicted target engagement levels on continuous dosing at the higher level. Choosing the optimal dose schedule is one of many parameters to increase the chance of success in Phase II. Among others, [corrective] analysis and translational data can confirm whether the observed drug effects are on mechanism together with learning on how to deal with toxicities observed in early development. At this point in the program, we feel encouraged that our clinical observations support fadra's presumed mechanism of action. The Phase II proof-of-concept or POC stage will consist of multiple cohorts defined by histology. We expect that cohorts may enroll at different rates. For example, it is possible that the fastest ones will be those in which we have already seen anticancer activity during the dose escalation stage. As previously reported, we have seen PRs and stable disease in patients with T-cell lymphoma, women's cancers, including cervical, endometrial and ovarian and pancreatic cancer, all on fadra monotherapy. Clinical data from this open-label POC stage will be reported as they become available. When biotech companies enter negotiations for out-licensing assets or a strategic exit, preparing the commercial drug product or DP, is often kicked down the road to be dealt with by the next owner of the asset. Such neglection can have a profoundly negative impact on valuation as the time lines to launch become apparent to the licensee or purchaser. Mindful of these matters, the Cyclacel team has been proactively investing in a tablet formulation of fadra to replace the capsule currently used in clinical trials. A tablet DP has further advantages to capsules in terms of patient convenience and increased compliance. As a tablet, DP of fadra has recently become available, we will treat a few patients with it within the Phase I part of our ongoing 065-101 study. We will provide further updates on this project as they emerge. Let us now turn to plogo. In our 140-101 study, we are evaluating plogo in dose escalation stage as a treatment for patients with advanced solid tumors and lymphoma. We are currently dosing patients at dose level 4. Plogo has previously shown early signals of anticancer activity at low dose levels in patients with biliary tract, non-small cell lung and ovarian cancer. Our preclinical program, aiming to elucidate plogo's differentiated biological profile has revealed that alongside the inhibition of PLK1, plogo has also demonstrated an epigenetic mechanism of action. This property may lead to a biomarker-driven clinical study in the future. Over the coming months, we expect key data readouts from the Phase I/II studies for fadra and plogo. We expect to report complete dose escalation data with fadra, followed by initial data from the fadra Phase II POC stage, which is expected in the second half of 2023. Dose escalation in the plogo study continues, and we expect to report initial data in mid-to-late 2023. We believe that our medicines are differentiated from other molecules in their respective class with properties, which may be best-in-class. I will now turn the call over to Dr. Mark Kirschbaum, our Chief Medical Officer, to provide details on recent clinical data. Mark?