3/31/2026

speaker
Morgan
Conference Operator

Good morning, ladies and gentlemen, and welcome to the Diomedica Therapeutics Full Year 2025 Earnings Conference Call. An audio recording of this webcast will be available shortly after the call today on Diomedica's website at www.diomedica.com. in the Investor Relations section. Before the company proceeds with its remarks, please note that the company will be making forward-looking statements on today's call. These statements are subject to risks and uncertainties that could cause the actual results to differ materially from those projected in these statements. More information including factors that could cause actual results to differ from projected results, appear in the section entitled Cautionary Statement Note Regarding Forward-Looking Statements in the company's press release issued yesterday and under the heading Risk Factors in Diamedica's most recent annual report on Form 10-K. Diamedica's SEC filings are available at www.sec.gov and on its website. Please also note that any comments made on today's call speak only as of today, March 31st, 2026, and may no longer be accurate at the time of any rent replay or transcript rereading. Diomedica disclaims any duty to update its forward-looking statements. Following the prepared remarks, we will open the phone lines for questions. I would now like to introduce your host for today's call, Rick Pauls, Diomedica's President and Chief Executive Officer. Mr. Pauls, you may begin.

speaker
Rick Pauls
President and Chief Executive Officer

Thank you, Morgan, and thank you all for joining us for our fiscal year 2025 earnings call. With me this morning are Dr. Julie Kropp, our Chief Medical Officer, and Scott Kellan, our Chief Financial Officer. Looking back for a moment, 2025 is a year in which we made significant progress across our pipeline, achieving a number of key milestones. As most of you know, our lead candidate, DM-109, is a recombinant form of the naturally occurring KLK1 protein, a serum protease, that acts through the bradykinin-2 receptors in the walls or endothelium of our blood vessels. to increase the level of nitric oxide, prostacyclin, and endothelial-derived hyperpolarizing factor. The combination of these factors has the potential to more effectively enhance blood flow and vascular health than any other factor given by itself. We believe that this mechanism is why DM-19 is so well-suited to improve patient outcomes for preeclampsia, fetal growth restriction, acute ischemic stroke, and other indications associated with vascular pathology. And I'll turn the call over to Julie to provide an update on our preeclampsia and stroke programs.

speaker
Dr. Julie Kropp
Chief Medical Officer

Thanks, Rick, and good morning, everyone. Starting with our preeclampsia program, 2025 marked a very strong year of progress. In July, we announced positive interim results from Part 1A, the ascending dose portion of our investigator-sponsored Phase 2 trial being conducted in South Africa. These results showed that DM-199 produced statistically significant reductions in blood pressure and in the uterine artery pulsatility index, consistent with reductions in vascular resistance that suggest a potential improvement in blood flow to the placenta. Importantly, the interim data demonstrated that DM-199 did not cross the placental barrier. These interim results were observed in hypertensive women expected to deliver within the next 72 hours. We believe these results demonstrate an on-target mechanistic response, which supports DM-199's potential to be a first-in-class disease-modifying therapy for preeclampsia. Key findings from the interim analysis of Part 1a, specifically from Cohort 6 through 9, in pregnant women with preeclampsia planned for delivery within 72 hours include the following. First, blood pressure data demonstrated clear dose-dependent and statistically significant sustained reductions in both systolic and diastolic blood pressure, underscoring DM-199's potential to control maternal hypertension associated with preeclampsia. Second, DM-199 significantly reduced the uterine artery pulsatility index, a Doppler-based measure of arterial resistance that suggests improved uteroplacental perfusion. Third, and most importantly, DM-199 did not cross the placental barrier, placing it in a unique position with respect to safety and reduced fetal risk in this highly vulnerable patient population. Through additional analysis, we have also demonstrated that DM-199 does not pass to babies through breast milk, further reinforcing its confinement to the maternal circulation. This advantageous safety profile combined with DM-199's novel mechanism of action may enable earlier initiation and longer treatment duration, which has the potential to drive meaningful prolongation of pregnancy without added safety burdens. We believe the observed improvements in vascular resistance reflect restoration of normal endothelial function consistent with an on-target mechanistic response to DM199 therapy. By improving endothelial health, DM199 has the potential to address the underlying vascular dysfunction driving the disease that should result in stabilization of maternal vascular pathology and prolonged pregnancy, as opposed to current therapies that simply manage symptoms. Taken together, the ability to reduce blood pressure, improve uteroprocental perfusion, and restore endothelial function reinforces our belief in DM-199's potential to be a first-in-class disease-modifying therapy for this life-threatening condition for which there are currently no approved treatment options. During the fourth quarter, under the leadership of Professor Kluver, enrollment continued in the Part 1A expansion cohort, which will include up to 12 additional patients to provide us with a more comprehensive data set. We anticipate completion of this cohort in the first half of 2026. Protocol amendments are being finalized for Part 1B and 2 of this study. Part 1B will enroll up to 30 hypertensive women with late stage preeclampsia expected to deliver within 72 hours to further confirm the Part 1A results. These participants will receive continuous IV administration of DM-199 that will be titrated to maintain blood pressure in the targeted range. Part 2 will enroll up to 30 women with early onset preeclampsia who are candidates for expectant management where the therapeutic goal is to prolong the pregnancy as long as possible while also providing increased blood flow to promote larger, healthier babies. These protocol amendments represent refinements to the previous treatment regimens based upon learnings from Part 1A. The fetal growth restriction cohort will be enrolling patients without preeclampsia but with impaired placental function, further expanding the potential application of DM-199 across placental vascular disorders. The first patient in that cohort is anticipated to be dosed in Q2, 2026. Importantly, we have also recently received regulatory clearance from Health Canada to initiate a global phase two clinical trial of DM-199 in early onset preeclampsia. This is an important regulatory milestone for our PE program. We are currently finalizing plans to commence site activation in the second half of the year. We intend this trial to be a global Phase II study. It is an open-label, dose-finding trial designed to enroll approximately 30 participants with early-onset preeclampsia between 24 and 32 weeks of gestation. This expectant management population represents patients with the greatest unmet medical need where safely prolonging pregnancy can have the most meaningful maternal and neonatal impact. The study will evaluate the safety, tolerability, and preliminary efficacy of DM-199 with dosing anticipated to continue until delivery. We are assessing three dose levels to inform dose selection of the optimal regimen for Phase III. Primary study endpoints include maternal pharmacokinetics and further confirmation that DM-199 does not cross the placental barrier, an important safety consideration for both regulatory review and patient acceptance. In addition, we will evaluate clinical and biomarker outcomes, including prolongation of pregnancy, blood pressure control, uterine artery blood flow, circulating pathogenic biomarkers, and renal function. We are also preparing to seek approval to expand the study to include sites in the UK. And with respect to the additional reproductive tox study in rabbits requested by the FDA, preliminary results from a dose range finding study in rabbits suggest that rabbits may not be a suitable animal model for reproductive toxicology studies with DM-199. This is likely due to an unusual immune response to the recombinant human protein unique to rabbits that has not been seen in rats, monkeys, or humans thus far. Most importantly, from our perspective, there were no teratogenic effects observed in the approximately 200 pups or baby rabbits produced in a prior study. This included no external visceral or skeletal malformations. We are currently evaluating an alternative animal model to address the FDA's request and we will work with FDA to find a solution in parallel to initiating the Phase 2 trial in Canada and other potential jurisdictions. Turning to our Remedy 2 trial, 2025 was also a good year for our stroke program. Over the past several months, we have intensified our engagement with study sites to share best practices and build friendly competition. We've also added additional resources to support sites through the enrollment and follow-up process, and we continue to work on additional ways to support our study sites. These activities, along with increased site activations globally, have resulted in encouraging enrollment momentum over the last few months. At present, I'm very pleased to report that with these additional efforts in the United States and Canada, along with expansion into the UK and Europe, we have achieved almost 70% of the required enrollment of 200 participants for the interim analysis. We currently have close to 61 active sites, including four in the UK and an additional 12 across Europe, and approximately 25 more sites are expected to activate in the coming quarter. With our recent progress, we are reiterating our guidance to complete the interim analysis by the second half of 2026. Since the last earnings call, an independent data safety monitoring board meeting was conducted after the enrollment of 100 patients. Following review of the safety data from these participants, the independent DSMB unanimously recommended that enrollment continue without modification. I will now turn the call back to Rick.

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