Michael Tobias Stumpp
Analyst · Leerink Partners. Please go ahead
Thanks very much, Robert. Good morning, good afternoon, everyone. I hope you can also hear me well. I'm really very happy and proud about the progress and all the achievements. The various teams have made in the year 2024. And let me, first of all, already acknowledge our collaboration partner, Orano Med, who is making all of this possible. I'll speak a bit more in detail later. And 2025 is really the year with the first clinical data from the radio DARPin and Lead. And that's why I'm so excited to be here. Things are moving forward. and that's quickly look back, but also then let's look a bit forward together. So moving on to Slide 10. I'm pretty sure you have heard about the DARPin before. So the big blue picture there, that's where we put a lot of effort into understanding what's the ideal properties of the radiopharmaceutical. It involves some protein engineering, but it also certainly involves the linker chelator. And of course, we also do half-life extenders. Most importantly, however, for the patient's benefit, is the alpha-emitting therapeutic isotopes. So that's the 212 version of Lead which has proven clinical efficacy, thanks to our collaborators from Orano Med gives release to a lot of high energy immediately within a very short time and sell the on-the-go double-strand DNA damage. And because it has a relatively short half-life, it also seems to have an ideal waste management and the safety profile so far so good, of course, we need to explore further in patients. So all-in-all, we think that the DARPins are the ideal partner for Lead, and that's what we are going to establish in the future. So moving on to Slide 11, let's quickly have a closer look at why Orano Med is really one of the leaders in the targeted alpha therapy field. They are one of the pioneers and I think the very, very big reason to mention here is they have the supply chain fully under control. with virtually unlimited starting material. You see a picture these 22,000 drums of [two Thorium] (ph). That's where it's down to it. So there is really unlimited supply. Orano Med also recently validated their approach by an agreement with Sanofi, which is of course, one of the pharmaceutical players in the field. And that included their lead asset, the Alpha-Emitter program, which has shown very nice clinical data presented last year at ASCO. And of course, there are a couple of technical advantage, that's how our teams chose to focus on that. Again, the short half-life, it makes it relatively easy for patient administration. They don't have to stay very long until they are so-called cleaned waste management risk and asset and the very high energy release from the Alpha-Emitter, with a clean decay chain. So lots of reasons to believe that this is the idea of isotope for us. We didn't stop there. This partnership was greatly expanded, and that's what really changed late last year. In the beginning of the year, we announced it around JPMorgan. So it's a global partnership expansion more and above and beyond what we had before. We are now basically together the owner of 10 products that are composed of lead and protein-loyalty. And the first one has been designated MP0712. I'll talk in more detail. That's our DLL3 program. And we also announced mesothelin our second DARPin program, together with Orano Med 50-50 cost share and split. Beyond that, we have two [MPO programs] (ph), number five and 6 here, where there is an opt-in and then we have another four MP program. So we have a very rich supply chain, so to say now for lead-based programs. So let's go one step closer on that Slide 13, our first program that we are really very, very actively involved in development right now. This the 712 program with a focus on DLL3 expressing tumors. Most patients initially, we will be treating our small cell lung cancer patients. They have a very high unmet medical need, relatively low 5-year overall survival. And mostly what the target was validated last year by the approval of Amgen's tarlatamab in [deltra] (ph), so we believe there is room to get results above and beyond tarlatamab, but it's also a proven pathway for approval. If you look again at the right picture, 712, that's a DARPin that we added some albumin binding half-life extension tool. So it's composed of three essential parts, the DARPin binding [DLL3, albumin binding loyalty and the Lead-212 radio isotope. On to the preclinical results, just to be very brief here, and please feel free to ask questions. This was presented late last year. We have a very potent molecule. And the potency is very important because the target is actually expressed at a relatively low level. You see the brownish stain at the left. So there are different tumors, but the human small cell lung cancer tumors we are staying came with a relatively faint brown color, which means in the molecule that’s very, very potent, see this in the middle, that's the biodistribution. We get exceptionally high values at the tumor, thanks to the design of the molecule and much above the kidney. So we also feel we have a good safety window. And very nice to see in this xenograft study on the right that we saw complete and durable regression in that very relevant model, at a dose that is probably the right dose clinically. So with that, I think we can look at what the clinical program will be like. So there are many parts to the program. And as you can see, there is a green box, that's the Phase zero component, focused on imaging and from the imaging, you can calculate then the doses for the various organ. And this together should build the confidence that we reach relevant therapeutic levels in the tumor lesion called dosimetry. Probably about 10 patients in the year, should be enough, and we anticipate these studies to start in the second half of the year. The initial Phase II Phase 0 imaging will be complemented by a therapeutic part Phase I/IIa study in patients, the first part dose escalation with the main objective to establish the safety and the recommended Phase II dose, thinking of about 15 to 20 patients. Of course, we need to get the buy-in from the FDA. And then the part two will be the dose expansion where we hopefully can also go a bit beyond the small cell lung cancer patients, so including neuroendocrine carcinoma and of course, looking then for response rate, which will lead them and we don't know exactly when in the future to a registration study. And of course, there could be more than one registration study depending on the integration and the line and maybe other factors. Moving on to now something completely different. Our second program, just in a nutshell, I'm very excited about this one because it has a true DARPin differentiation. We have found DARPin that are very specific for the membrane proximal epitope shown here in pink, and therefore, not disturbed by a lot of very high levels of shed message in that has hampered previous approaches. So that's the unit power of DARPin that can discriminate very small differences. And again, it's the DARPin with a half-life extension and Lead-212. This will take some time to finish the preclinical development and the manufacturing. But hopefully, we can also report on that progress during the year. Note that there will be a poster at which is, I believe, late April with more preclinical data. And just to conclude my part, there is one important biochemical distinction. You see here a graph in the middle on Slide 17, where we have added Shed mesothelin in high concentrations and the distal DARPin, which binds an epitope don't like so much. So it's also been inhibited by Shed mesothelin, very different profile than the curve from the proximate that bind the membrane epitope, and that's totally maintained by ensures totally maintained binding throughout the whole activity raise tested. And again, this will be shown at AACR 2025 in late April. So again, very excited what the teams are doing together with Orano Med, fantastic collaboration partner. And very excited to look both back but especially forward throughout this year to have first patient results from these programs. Thank you very much. And with that, I hand over to my good colleague, Philippe who is running the whole from the medical side, and we'll talk today about the 533 program. Thank you all.