Phillip Chan
Analyst · H.C. Wainwright
Thank you, Kathy. There have been many requests to review the REFRESH 1 data from both analyst as well as shareholders and so we thought that we would try to do that on today's call. So, this was a study that was presented by Dr. Tom Gleason, who is the Chair of Cardiac Surgery at the University of Pittsburgh Medical Center on behalf of the three fresh one investigators. This is entitled to use of novel hemoabsorption technology to reduce plasma free hemoglobin during complex cardiac surgery throughout results of the safety and feasibility REFRESH 1 study. Now, it's been known for a long time that cardiopulmonary bypass causes inflammation. What is cardiopulmonary bypass, it is when you are trying to operate on the heart so crack hope in the chest and you expose the heart, but the heart is beating. In order to operate on the heart, you usually need to stop the heart from beating and thereby then, in order to operate on the heart, but when you do so, you need to put someone cardiopulmonary bypass that oxygenates and pumps blood the rest of the body while you do your operation. Unfortunately, this cardiopulmonary bypass despite many advances in the past still continues to generate a high degree of inflammatory mediators to specifically free hemoglobin from the hemolysis of red blood cells caused by cardiotomy suction, blood share and blood transfusions. The activation of compliment particularly C3A and C5A, which are caused by blood contact with air and artificial surfaces, the last but not least cytokines which are caused by surgery -- the trauma of the surgery ischemia reperfusion injury as well as endotoxin generation. Now, one of these inflammatory mediators, plasma free hemoglobin has long been known as a direct contributor to cellular injury, tissue injury as well as death in many cases. For some of you who've been in investors for a long time, they'd be familiar with blood substitutes where they actually try to use plasma free hemoglobin as a blood substitute in the past, but it actually increased mortality. And the reason why it does so is because of many different factors. One, it is a very potent scavenger of nitric oxide one of your most potent vasodilators in your body, and when you don’t have these vasodilators capable of increasing blood flow pure by organs, they can create problems including pulmonary hypertension, acute kidney injury as well as decreased blood flow to vital organs like the intestines, the kidneys, the brain and other organs. There is also a very potent generator of oxygen free radicals due to the highly reactive iron species found in the hemoglobin that can cause blood vessel injury. Last but not least, hemoglobin is a pigment, this is what gives blood its characteristic red color and when it is -- when hemoglobin is in the red blood cell, it is nontoxic, but when its released into the blood stream because of hemolysis of these red blood cells that hemoglobin can wind up in the kidneys causing renal tubular injury thereby causing kidney failure in some cases. And so, plasma free hemoglobin of all the organs that it can potentially damage is most highly correlated with the development of acute kidney injury in these cardiac surgeon patients. This is a table taken from the paper by a cardiothoracic surgeon name, [Indiscernible] who has done a lot of research on free hemoglobin and the risk of developing acute kidney injury, but what you can see from this graph is that those patients with very low free hemoglobin levels less than typically 60 milligrams per deciliter do not typically get acute kidney injury while those with acute plasma free hemoglobin levels greater than 120 milligrams per deciliter are at risk of developing acute kidney injury. So on with this knowledge and other related literature from the field, we went about looking at modeling this in vitro and on the bottom of the slide you can see the in vitro set up where a bag of bovine whole blood is put into a circuit using a circulation pump as well as the CytoSorb filters and post-filters you see an infusion pumps that is injecting free hemoglobin directly into the blood system at a constant level for a total of the 180 minutes. This is designed to stimulate the ongoing hemolysis that happens during open heart surgery where blood is continuously hemolyzing due to blood shear forces as well as cardiotomy suction. And when you look at the graph above, you can see that in the red in the control that does not benefit from CytoSorb, the levels of free hemoglobin rise very linearly with these, this infusion of free hemoglobin, but with the institution of CytoSorb therapy and opening up this value and letting blood flow through the cartridges at one hour into these experiments, CytoSorb is capable of reducing through hemoglobin very efficiently in these in vitro system. And that lead to the REFRESH 1 study which was a perspective open labeled, randomized controlled trial where the controls received standard of care and the treatment group received standard of care plus dual 300 CytoSorb cartridges in the cardiopulmonary bypass circuit. The inclusion criteria were patients seeking to 80 years of age, undergoing elective non-emerging complex cardiac surgery with cardiopulmonary bypass with that cardiopulmonary bypass was expected to last longer than three hours meaning that these patients were getting roughly two at least two hours of CytoSorb treatment. The exclusion criteria try to exclude patients undergoing very simple procedures that were typically not associated with long CPB pump times and we're not associated with high levels of free hemoglobin as well as also excluding those that are extremely evolved such as heart lung transplant, left ventricular assist device plantation and other condition such as endocarditis and also try to exclude patients that were -- that have end stage organ failure or had near term death or were expected to have your term death. The schematic of this diagram is on this next slide here where blood was pumped with the CPB machine to the oxygenator, which oxygenates blood and roughly a tenth of blood flow was diverted back to the venous reservoir through dual CytoSorb cartridges in parallel while the remainder of the blood flow going to the rest of the body. The enrollment of these patients and patient population statistics were that 52 patients were enrolled, 49 were randomized and three withdrawing consent prior to survey, and all 46 patients that remained were part of the safety population divided equally in at 23 patients in the control and 23 patients in the CytoSorb treatment group while those with valid plasma free hemoglobin levels totaled 38 patients and they were in the plasma free hemoglobin reduction group. In terms of the demographics of these acute patient populations that there were slight tendency for CytoSorb patients to be older to have more females in the treatment group as well as having more current smokers which is the risk factor for adverse outcomes compare to the control. What was interesting about the study is that it kind of highlights current practice during the cardiac surgery typically when patients go in for open heart surgery procedures, they typically don’t go in just for one procedure. Cardiac surgeon typically is trying to do multiple procedures at the same time because what happens is that once they undergo one procedure, they develop a tremendous amount of scarring that is very difficult to clean when you go in there for a second time. So, there is a very strong trend to do multiple procedures at the same time and it was no different in this complex cardiac surgery patient population where roughly 75% in the control and 89% in the CytoSorb group underwent multiple procedures. But it turns that not all procedures are equal in terms of generating plasma free hemoglobin and it turns out that those involving valve replacement through either multiple valve replacement or valve replacement plus another procedure like CABG or aorta reconstruction et cetera, these are the ones that have a highest levels of plasma free hemoglobin compared to non-valve replacement surgeries. And that is despite the length of the bypass being typically shorter in the valve cases versus the non-valve cases. On the next slide, you see what the data looks like from these patients, these valve replacement patients undergoing plasma free hemoglobin reduction. And what you can see here is that amongst cases where the cardiopulmonary bypass time is less than five hours, there were significant reductions in the plasma free hemoglobin achieved by CytoSorb and now was statically significant after the pre-specified three hour CPB-linked time particularly at 3.5 and 4 hours of surgery. And it's very interesting that when you look at this graph and the slopes of these two graphs that it is very similar to what we saw in our in vitro system, and here you see the levels of the 120 and 60 milligrams per deciliter. These were very similar to those associated or not associated with acute kidney injury in some of the previous studies that have been reported in the literature. So this is very encouraging data and I think that we also demonstrated the activated compliment, which again is also associated with mortality in a wide range of extracorporeal blood purification technologies including dialysis and other things that we were able to reduce activate compliments C3A and C5A, both during a surgery and then the case of C5A post-surgery as well. In terms of adverse events, there were roughly equal number of adverse events in both the control and CytoSorb treatment group as well as a comparable number of serious adverse events as well. The mortality was not significantly different with one death out of 23 in the treatment, in the controlled group in queue had the 23 in the treatment group and there were no unanticipated device related effects as well as no device related adverse events -- as well as only two device related adverse events and those were both related to lower platelets. And when we looked to the platelets, what you can see here and what we reported on Friday in our press release is that few things to note. First, it's very important to note that patients undergoing cardiopulmonary bypass and cardiac surgery are heavily anti-coagulated during surgery. In fact, their levels they are not expected to clot at all during surgery because they are dealing with the arterial blood supply and any clots in the arterial blood supply can than lead to a stroke. Clots going to the brain causing a stroke, clots going to intestine causing an intestinal infarction, clots going to the kidneys to the heart et cetera, these are unwanted. So, patients undergoing cardiothoracic surgery are very anti-coagulated, and so the other thing to note is that cardiopulmonary bypass which is an extracorporeal therapy decreases platelets and you see this from the pre-procedure platelet level in this graph to one hour of cardiopulmonary bypass when CytoSorb therapy has not even been started. You see a separation between these two curves were not exactly sure why it could be because of differences in the patient population, but then with CytoSorb therapy that there is a transient drop in platelets during surgery and this drop is stable with the return of platelet levels back to baseline by the time that they reach the intensive care unit. In the postoperative period, there were no significant differences in coagulation parameters or bleeding complications and there were no significant differences in medium transfusions from the time of surgery throughout the entire ICU stay with packed red blood cells requiring one unit versus one in the control, key value [0.15], platelets two versus one control and plasma one versus zero control. And so as we move forward in future studies, this is obviously something that will continue to look at, but in this trial it was not associated with any serious device related events. So in terms of our summary and next steps plasma free hemoglobin was related to cardiopulmonary bypass way, but also surprisingly to procedure type that plasma free hemoglobin was highest in the in high cardiotomy suction and complex cases like valve replacement where CytoSorb significantly reduced plasma free hemoglobin and activated compliment. There are no similar differences in the rates of AEs or SAEs between the groups and treatment cause of transient thrombocytopenia during cardiopulmonary bypass of unknown significance. Again, these patients are highly anti-coagulated during the surgery. So, in terms of REFRESH 2, the goals is to compare CytoSorb versus control in the larger study enrich for high hemolysis patients that have high plasma free hemoglobin just like the valve replacement patients. So, this provides an equally way of potentially enriching the next trial with those at highest risk of plasma free hemoglobin levels that by correlation also a high risk of developing acute kidney injury and other organ injury, and we look to correlate this reduction in plasma free hemoglobin and activated compliment with reduced organize dysfunction like acute kidney injury, reduced stroke risk, reduced incidence of respiratory dysfunction as well as others. Last but not least, we looked to confirm the safety and risk benefit of the treatment in this larger study. So with that, let me transition now to initially itself we have in place for the second half of the year, for the remainder part of the year, and these include financing in investor relations. So as Kathy mentioned, we completed an $11.5 million equity financing with Cowen and Company, one of the leading mid-tier healthcare investment banks in the United States as well as our existing investment banking syndicate, which you can see below in the figure. We've strengthened this accomplish many things including strengthening our balance sheet, enabling us to fund our commercial expansion in clinical trials strategy. We also gain the support from Cowen and interest from other leading mid-tier healthcare investment banks as well. We met with a large number of fundamental investors that formed a base from which we plan to grow institutional sponsorship and drive liquidity of the stock which is one of the things that this currently lacking in our current stock action. And we also represents another example of our growth in standing in the investment community by being able to attract these high quality investors as well as these leading mid-tier banks as well. And last but not least, we are finalizing the evaluation of well-known investor relations firms with the goal of starting a new program very soon targeting both institutional and retail investors and will have more detail on that in our future press release. The second thing that we're doing is gearing up our clinical infrastructure as we've mentioned before we plan to initiate the U.S. REFRESH 2 trial later this year, pending FDA approval, we're also planning other smaller company sponsors RCTs in different areas including sepsis at a relatively modest cost. And we are currently in process of bringing in key hires that are expected by the summer to help build out our clinical infrastructure. One of the things that you see at the bottom here just a picture from this year's 4th International CytoSorb Users' Meeting, I think that it was the 120 participants from 22 countries very exciting number of presentations that were given. This is really migrated from what was initially key support studies to now a lot of key series and even smaller randomized controlled trials, so the level and the quality of this data is growing and the numbers of people here continue to grow worldwide. The reason why this was only at 120 participants is that this is an auditorium in a hotel and it was maxed out at capacity, and so if we had more room, we definitely would have more people. Another major initiative is that we have numerous clinical studies being published. So, this just represents a sampling of a lot of the clinical activity that is ongoing. But in terms of expected publications, a breakthrough publication on 22 patients and refractory septic shock has been accepted where this unexpectedly high shock reversal rate and much improved survival compared to historical controls. We also are announcing that one of the biggest endocarditis case series to-date in cardiac has been completed involving 39 patients with endocarditis. Endocarditis is an infection of the heart valve often caused by either poor dentition and the feeding from the mouth of bacterial to the bloodstream of these valves, but it also plays very heavily on the growing drug epidemic particularly the heroin and opioid epidemics where IV drug use has led to contamination of the blood with skin bacteria that can feed heart valves and destroy them within days. These patients act very similarly to septic patients where the heart valve has often been destroyed. These patients are very unstable going into surgery and in now many centers we have seen something very similar to what this study has concluded where patients are very stable going through surgery require very little in the way of hemodynamic support following the surgery and have had typically very good outcomes. And last but not least, there is our first review article on CytoSorb in septic shock has been written, it summarizes the positive clinical results so far while confirming safety that is a third-party written article. We also have a lot of published cases as well including a case series on septic shock patients describing that really intervention is very important for survival. This is how CytoSorb has been used predominantly in the market place today, but it also includes many different cases including one of the largest animal sepsis studies to-date that demonstrated increased survival and improved cardiac function in septic wrath. But we also have many pending publications including publication was submitted for the REFRESH 1 trial that has currently been submitted. There is also an interim analysis of our international CytoSorb drug history involving about 200 patients that has been also submitted. There is a 20-patient case series in septic shock and many case reports on a wide variety of topics like anti-depression intoxication, toxic shock syndrome and many others. As I've mentioned in the past, I would urge you to visit our cytosorb.com website. This is the product website for the case of the week for basically breaking news on how CytoSorb is being helped, is being used to help patients across the world and places like Sweden, Russia, Italy, Chile, Germany and many, many other countries. Another major initiative that we have is the launch of a new therapeutic ECMO kit. Now, I just wanted to explain this a little bit. So, respiratory failure or failure of the lungs is often caused by excessive inflammation that causes the blood vessels of the lung to become leaky allowing fluid and cells to go from the blood into the air sacs of the lung essentially drowning a patient from the inside out. Now, this is often supported by mechanical ventilation which is the primary treatment modality today, but mechanical ventilation is very dangerous. The oxygen that you place into the lungs that can cause oxygen toxicity, the pressure in volume trauma on the lungs causes continued ongoing damage to the lungs. And when patients are on mechanical ventilation for long periods of time, they can develop complications like ventilator-acquired ammonia, pneumothoraces as well as become ventilator dependent because of the weakness of their diaphragm because they are not working to breathe, they are having machine doing for them. So, extracorporeal membrane oxygenation or ECMO is a supportive care therapy that was pioneered by our Chief Medical Officer, Dr. Robert Bartlett, and it has been increasing in popularity as an alternative to mechanical ventilation as a way to provide gas exchange and some [Indiscernible] dynamic support in critically old patients. ECMO is typically used -- has been reserved as a rescue therapy for those failing mechanical ventilation, but there has been a trend to maybe use ECMO earlier as a lung preservation strategy. The problem with standard mechanical ventilation and ECMO however is that they are used just to keep a patient alive, but they do not do anything to directly address the underlying cause of why the lungs are so diseased in the first place, which is often caused by uncontrolled inflammation, and that is really where this new concept of therapeutic ECMO comes in or the combination of ECMO with CytoSorb, and it is we call that new but in fact it's been now used in an estimated more than estimated 1,000 treatments as a lung preservation strategy for gas exchange in the intensive care unit, and we are now just ready to launch a specific ECMO kit that will enable the safe and rapid connection of CytoSorb to the ECMO pump system that is found in many intensive care units around the world, and we think that this is going to be a significant driver of our volume given that typical ECMO patient will use multiple cartridges during their intensive care units thing. Last but not least one of our major initiatives is manufacturing. So, as we mentioned previously, our original goal was to recycle entire manufacturing facility to a new business facility, but instead of doing that we've now secured new space at our current complex allowing us to extend our scaled up manufacturing at a fraction of the cost estimated less than 20% of what we had initially budgeted of and bringing this new facility online with by 2018. This new facility will -- is expected to quadruple our production capability in two phases to approximately $80 million in revenue, and we have already begun build out of the space and have placed orders from much of the capital equipment, and we expect this site to be validated and operational by early 2018. So with that, I thank you for your attention and that ends our formal remarks, and we -- moderator, we can open it up to Q&A period.