Joyson Karakunnel
Analyst · SVB Leerink. Daina, please go ahead, your line is open
Thank you, Mondher. On Slide 7, let me start with our first-in-class humanized monoclonal antibody that targets the immune receptor, KIR3DL2. As you may remember, KIR3DL2 is an inhibitory receptor found at approximately 65% of patients across all cutaneous T-cell lymphomas and even more in certain aggressive subtypes, but with limited expression in healthy tissue. To-date, data from lacutamab have shown promise, demonstrating compelling single-agent activity and offering immense potential in T-cell lymphomas historically associated with the poor prognosis for which there are few therapeutic options at an advanced stage. Let me highlight the progress we have made this year in our ongoing Phase 2 TELLOMAK study for Sézary syndrome and mycosis fungoides. In mycosis fungoides, the KIR3DL2 expressing cohort moved from Stage 1 to Stage 2, clearing a predetermined threshold before 50% of the cohort was enrolled. The KIR3DL2 mycosis fungoides data was also presented in 2021 at Lugano and the next mycosis fungoides data will be in 2022. Today, we are also announcing the opening of an all-comers cohort in the mycosis fungoides setting to further evaluate our FFPE companion diagnostic being considered for late-stage trials. As expected, our scientific hypothesis was confirmed by the data in the non-expressing cohort as the number of responses to move to Stage 2 was not reached as per the Simon 2-stage design and recruitment into this cohort was stopped. For the Sézary syndrome cohort, enrollment is on track and we expect to be able to report preliminary data in 2022. On Slide 8, we have a summary of the Cohort 2 mycosis fungoides data in KIR3DL2 expressors and Cohort 3 non-expressors. In the preliminary results of Cohort 2, we showed an overall response rate of 35% in late-line patients with limited treatment portion. As the median follow-up is only 4.8 months, we anticipate presenting longer term follow-up on the duration of response at the next update. Even with the short follow-up, there have been 6 out of 17 confirmed responses. In the skin compartment, we have 11 out of 17 confirmed responses. Of the three compartments, the skin compartment is important because of its association with quality of life for patients. As you look to the right of the slide, you can see the Cohort 3 non-expressors data. As I explained earlier, as anticipated in this non-expressing cohort, the three required events per the Simon 2-stage design was not reached for the trial to progress from Stage 1 to Stage 2. And due to this recruitment was stopped. We are encouraged by the data and look forward to further proof points in 2022. On Slide 9, let me summarize the progress we are making with lacutamab. We are pursuing a fast-to-market strategy for lacutamab in T-cell lymphomas, with a potentially pivotal trial underway in the initial setting of Sézary syndrome where lacutamab was granted U.S. Fast Track designation and EU prime designation last year. We have expanded past Sézary syndrome to mycosis fungoides, where we have seen encouraging preliminary data from our Phase 2 trial. For the Sézary syndrome cohort, enrollment is on track and we still expect to be able to report top line preliminary data in the second half of 2022. In mycosis fungoides, we moved the KIR3DL2 expressing cohort from Stage 1 to Stage 2 earlier than anticipated. And as expected, due to the number of events not having been reached, the non-expressing Cohort 3 was close to enrollment. The next preliminary mycosis fungoides data is due in the second half of 2022. Finally, we are advancing into peripheral T-cell lymphoma and have started two clinical trials in the relapsed setting. On Slide 10, I would like to update you on our monalizumab efforts. To remind you, monalizumab is an anti-NKG2A, which acts upon the checkpoint pathway to potentiate NK cell activation that we have out-licensed to AstraZeneca. There are currently two ongoing Phase 3 trials with monalizumab, one in combination of cetuximab in head and neck cancer and one in combination with the anti-PD-L1 durvalumab in lung cancer. On this slide, I wanted to recap the results for the randomized Phase 2 COAST study that AstraZeneca conducted in unresectable Stage 3 non-small cell lung cancer presented at ESMO in September 2021 and the first line head and neck data we presented at ESMO IO in December 2021. For the COAST study, the three arms evaluated the combinations of durvalumab plus monalizumab and durvalumab plus oleclumab, AstraZeneca’s anti-CD73. For the results shown here, both arms performed well versus the standard of care on durvalumab. After a median follow up of 11.5 months, the results of an interim analysis showed a 10-month PFS rate of 72.7% for durvalumab plus monalizumab versus 39.2% with durvalumab alone. The results also showed an increase in the primary endpoint of confirmed overall response rate for durvalumab plus monalizumab over durvalumab alone of 36% versus 18% respectively. On the right side of the slide, Cohort 3 evaluated the triple combination of monalizumab, durvalumab and cetuximab in frontline head and neck cancer. The data demonstrated anti-tumor activity in the first study to evaluate this chemo-free triplet combination in the first line recurrent or metastatic head and neck cancer setting. As a reminder, the standard of care is based off the KEYNOTE-048 trial. The approval is for pembrolizumab monotherapy in CPS greater than or equal to 1 and pembro plus chemo in all-comer patients. We continue to collaborate with our partner AstraZeneca on potential next steps for this program. Finally, in lung cancer, we are pleased to see that NeoCOAST study has been accepted for an oral presentation on April 11, 2022 at the American Association for Cancer Research Annual Meeting this year. On Slide 11, you can see an overview of the late-stage development for monalizumab in lung cancer. As mentioned, based on the Phase 2 COAST data, AstraZeneca has commenced PACIFIC-9, a Phase 3 trial evaluating the combination of either monalizumab and oleclumab plus durvalumab in the unresectable Stage 3 non-small cell lung cancer setting who have not progressed after concurrent chemoradiation therapy. Separately, AstraZeneca also announced that it is starting a Phase 2 clinical trial, NeoCOAST-2 in Stages 2A to 3A non-small cell lung cancer that includes a treatment arm with monalizumab in combination with durvalumab and chemotherapy. We look forward to seeing the data from Phase 2 NeoCOAST at AACR as mentioned. On Slide 12 moving to head and neck cancer. As mentioned, we presented data from Cohort 3 of the Phase 2 trial at ESMO IO for the triplet of monalizumab plus durvalumab plus cetuximab in the first line head and neck cancer. Additionally, the Phase 3 INTERLINK-1 trial of monalizumab plus cetuximab in IO-pretreated head and neck cancer is ongoing with final data expected in 2024. We look to further work with our partners, AstraZeneca, on this potential new treatment. On Slide 13, we are pleased to have presented our latest innovation to our proprietary multi-specific NK cell Engager platform that we call ANKET, which Eric Vivier has presented at several meetings last year, including ESMO and SITC. ANKET stands for antibody-based NK cell Engager therapeutics. These multi-specific molecules are made up of various building blocks as illustrated here. ANKET is a versatile fit-for-purpose technology that is creating an entirely new class of tri and tetra-specific molecule to induce strategic immunity against cancer. This technology platform will be an engine for our pipeline, creating value by a multiple target candidate and further reinforces our scientific expertise in the NK cell space. Our excitement for the ANKET platform is brought on because of the preclinical data we have to-date. First, the ANKET platform allows for the harnessing of NK cell effector function and NK cell proliferation in preclinical models against cancer. Second, the preclinical efficacy is due to the unique NK cell engagement of the activating NK cell receptors, NKP46 and CD16, but also the IL-2 variant, which targets receptors for the IL-2R beta and IL-2R gamma complex, which is unique to the tetra-specific molecule and includes a specific tumor antigen. Overall, it demonstrates a better preclinical anti-tumor efficacy than we have seen pre-clinically with clinically approved antibody. On Slide 14 is a summary of the data presented at SITC 2021 on our lead trispecific ANKET asset selected by Sanofi. This is the first NKp46/CD16 based NK cell Engager to enter the clinic. On the left side of this slide, you can see the preclinical data showing that CD123 targeted IPH6101 trispecific ANKET demonstrated potent anti-tumor activity against all AML cell lines, including primary AML, which were resistant to ADCC by a competitor anti-CD123 antibody. On the right of the slide, we demonstrate that in nonhuman primate, there is sustained pharmacodynamic effect, combining efficient depletion of CD123 expressing cells with minor cytokine release and a favorable safety profile in comparison to T cell engagers. We are pleased to see the Phase 1 trial underway by Sanofi. On Slide 15, we wanted to highlight the data on our recent generation of tetra-specific ANKET, which is made up of four components: in yellow, an antibody fragment that recognizes the tumor antigen; in green, an antibody fragment that recognizes NKP46; in red, an FC portion that will interact with CD16; and then in a blue – in blue, a variant of the interleukin 2. On the left, we show you the contribution of the tetra-specific ANKET with the non-alpha-IL-2 variant. The black graph on the far left is the vehicle. The green graph is the tetra-specific ANKET, and the red graph on the right is a trispecific ANKET with a systemic IL-2 variant. You can see the benefit with the green graph, including the tetra-specific ANKET with the IL-2 variant. On the right, you can see the benefit of the tetra-specific versus the vehicle as well as obinutuzumab in lung mouse models. On top, you have the vehicle, in the middle, tetra-specific ANKET, and on the bottom, the CD20 obinutuzumab. Activity is seen with the tetra-specific model that is not seen with obinutuzumab. We look forward to further updates on ANKET throughout the year as we progress toward IND-enabling study. I will turn to Frederic for an update on the financials.