Anurag Relan
Analyst · Stifel. Please go ahead
Thanks, Steve. I’ll begin on the next slide with a little background information about APDS. So APDS was first described in 2013. And based on our estimates and literature review, we believe that there are more than 1,500 patients worldwide diagnosed with APDS or almost 1,500 patients with APDS. We have already found more than 640 of those patients. These patients who have APDS have really had limited treatment options until recently to only treat the symptoms of the disease. The disease manifests itself in childhood and worsens over time without anything specifically indicated for treatment; physicians and patients who are quite limited in their treatment options. And as with most rare diseases, the signs and symptoms vary across patients. This makes the challenge of diagnosis even more difficult beyond just a rare disease. Fortunately, there is a genetic test that can provide a definitive diagnosis for APDS and I’ll be spending more time in the coming slides talking about our plans and efforts to help find more patients with APDS. On the next slide, we can see what Joenja now brings to patients in the US as a potential treatment option for them for their condition. It is approved by FDA for the treatment of APDS in adults and pediatric patients from ages 12 years of old and older. We have randomized clinical trial data showing that Joenja met both primary endpoints as well as meeting several significant other clinically relevant endpoints. In addition, we’ve seen a well-tolerated and generally safe adverse event profile. There were no drug-related or serious adverse events and the study of withdrawals due to the drug in the study. And more importantly, we have long-term data, and I’ll be sharing some of that with you that we’ve been publishing and presenting at conferences recently about the long-term benefits of using Joenja over several years in many cases. And this includes for patients in some cases to discontinue the use of immunoglobulin replacement therapy, reduction in infection rates, and persistence of the benefits that we see from the randomized clinical trial. And we can see that both in key measures of what’s called lymphoproliferation so their lymph nodes continue to stay not enlarged, and we see benefits also in their immune cell function. And as Steve mentioned, this has led to a strong start for Joenja. I think this speaks both to the unmet need that exists in this APDS population, but also speaks to the seriousness of the condition. On the next slide, you can see some of our things that we’re doing beyond the work that we’ve done in the US. As we discussed in August, we received the Day 180 list of outstanding issues from the European Medicines Agency, and we can confirm now that in October, we have submitted our responses. We remain on track to expect an opinion in this quarter and with potential approval two months later. If we receive a positive opinion from the CHMP in this quarter, we can then go ahead and file with the UK MHRA agency with potential approval also two months later. And as we previously announced, we’ve started a program in Japan to enable registration there eventually. And we’ve also now filed in Australia, Canada, and Israel, and those applications are proceeding along their review plans. We’ve also started a named patient program to eventually be able to help patients obtain access in territories across the world. And our pediatric study is enrolling quite well with the majority of enrollment already complete in the 4 to 11 study and the 1 to 6-year-old study has now started recruiting. So we expect that first patient also to be treated very soon. And as Sijmen mentioned, we have been engaged with the FDA about the second indication, and we expect to be able to provide further details on the second indication later this quarter. On the next slide, I want to review with you some of the patient finding efforts that we’ve initiated and are ongoing at this time. The first, of course, is APDS is a rare disease, and it’s critical to raise awareness about APDS, and now we have a plethora of data also on leniolisib that we can share. These data highlight the seriousness of APDS, and I think it also highlights, I think, the experience that we have with leniolisib been treating many of these patients. On top of that, we have our ongoing Navigate APDS program that offers no cost testing available to patients in the US and Canada. And these patients, once they have this testing available often have questions, so we have genetic counselors available to help them consider the testing and then also review the results with them. And then a big effort that we’re really pushing on right now is that, when we look at the diagnosed patients that we have in the US, especially, we find that most of those patients actually don’t have family members that have even been tested. And we know that APDS is an inherited disease, but there’s this gap in terms of testing. So we’ve initiated several efforts here, both with physicians and with family members themselves to be able to reduce the barriers to allow further testing amongst family members, which we think will be important to help uncover and find more patients. On the next slide, I want to review with you a little bit of information on something called Variants of Uncertain Significance. And what these are genetic test results that are basically unclear or, I would better say, unclassified at this point, and with the growth in genetic testing, we get more of these inconclusive results. These are basically variants that have not been previously seen. And this is really frustrating for patients and doctors because they have patients who have clinical symptoms of APDS often, but the genetic test result is inconclusive. And so we have several efforts ongoing, and I’m not going to review all of them with you in detail here, but these efforts involve trying to review the existing data and try to collate all of that information and publish that. We just started a partnership, for example, with Genomenon to develop this genomic landscape, which will be available to all clinicians to be able to easily access variant’s information. We have a number of efforts ongoing to increase the availability of functional testing. And then lastly, I think I’m really excited about this possibility of this new effort that we started looking at a way to, in a single experiment, test all possible variants and quickly determine whether a result is pathogenic or disease causing or not. And I think the nice thing here in a sense is that, it’s a new problem for APDS, but we’re really using a playbook that exists already for many other genetic diseases. And we’re following that playbook to be able to help these APDS patients who may still have this unclear diagnosis. On the next slide, you can see some of the conferences we’ve been presenting at and some of these abstracts we presented. These abstracts vary both in terms of what we’re talking about in terms of the seriousness of the conditions. So the mortality, for example, associated with APDS but also the healthcare costs associated with APDS and especially untreated APDS and these data, I think, highlight very nicely the serious burden that these APDS patients face. On top of that, we continue to get more data out of our clinical trial program. So we have a second interim analysis that will be published at the IPIC Conference next month. And we also have a number of case series as well as abstracts on single patients. These are from many times from our Expanded Access program or Compassionate Use program, where, for example, the second bullet under the IPIC heading is a patient who was previously transplanted unsuccessfully, unfortunately, but then was treated with leniolisib under this Compassionate Use program and the data at the abstract will show the benefits that this patient was able to experience. On top of that, on the next slide, you can see some of the publications. So the first publication is the first interim analysis, and that’s available now in a full paper. And then the next publication is also a key publication describing the mechanism of the action of leniolisib in APDS. And I think it describes clearly how APDS leads to this primary immune deficiency with this immune dysregulatory phenotype and how leniolisib benefits in these patients. And with that, I’ll turn it over to my colleague, Jeroen Wakkerman, our Chief Financial Officer.