Good morning, ladies and gentlemen, and thank you for standing by. My name is Abby, and I will be your conference operator today. At this time, I would like to welcome everyone to the Summit Therapeutics First Quarter 2024 Earnings Conference Call. [Operator Instructions] Also, please note that today's call is being recorded. Thank you. And I would now like to turn the conference over to Mr. Dave Gancarz, Chief Business and Strategy Officer. You may begin.

Thank you. Good morning, and thank you for joining us. Our press release was issued this morning and is available on the homepage of our website. Our Form 10-Q was also filed earlier this morning and is available on our website. Today's call is being simultaneously webcast, and an archived replay will be available later today on our website, www.smmttx.com. Joining me on the call today is Bob Duggan, our Chairman of the Board and Chief Executive Officer; Dr. Maky Zanganeh, our Chief Executive Officer and President; Manmeet Soni, our Chief Operating Officer and Chief Financial Officer; and Dr. Allen Yang, our Chief Medical Officer. Before we get started with the rest of the call, I would like to note that some of the statements made by our management team and some of the responses to questions that we make today may be considered forward-looking statements based on our current expectations. Summit cautions that these forward-looking statements are subject to the risks and uncertainties that may cause actual results to differ materially from those indicated in the forward-looking statements. Please refer to our SEC filings for information about these risks and uncertainties. Summit undertakes no obligation to update these forward-looking statements, except as required by law. Following comments from Bob, Maky and Manmeet, we will take questions. With that, I would like to turn the call over to Bob.

Thank you, Dave. Good morning, everyone, and thank you for joining us today. Before handing the call over to Maky and Manmeet, I'd like to say a few words about our progress and the recent accomplishments of Team Summit. As a reminder, we are enrolling patients in our 2 multiregional registrational Phase III clinical trials, HARMONi and HARMONi-3. Along with our partners at Akeso, we have had ivonescimab data featured multiple medical meetings, including ASCO, American Society of Clinical Oncology; SITC, Society for Immunotherapy of Cancer; and the European Lung Cancer Conference or ELCC as well as the ENA Triple meeting, the annual joint meeting of the European Organization for Research and Treatment of Cancer, the U.S. National Cancer Institute, NCI, and the American Association of Cancer Research, AACR. This is in addition to more focused meetings where the potential of ivonescimab has been discussed, including Targeted Therapies of Lung Cancer 2024 meeting and the 2024 Texas Lung Cancer Conference. These have been excellent settings to allow for some of the nations and world's leading KOLs to come together to discuss the future of cancer therapy, including the potential for ivonescimab. We continue to receive inbound interest in IST proposals for ivonescimab, and we are moving forward with accepting multiple IST proposals to allow these investigators to start these trials with ivonescimab in multiple different settings, including non-lung settings. This is in addition to our continued collaboration with our partner, Akeso, who continue to generate data in Phase II settings in both lung cancer and solid tumors outside of lung cancer, data which can help support additional late-stage clinical trials. These conferences have been foundational to our 2024 goals of successfully executing on our registrational Phase III trials while expanding our clinical development plan. In addition, I'd like to take…

Thank you, Bob, and good morning, everyone. As Bob mentioned, we remain incredibly enthusiastic about the accomplishments of Team Summit only 1 year into our partnership with Akeso. Before touching on ivonescimab's unique mechanism of action and clinical highlights, I would like to remind you of clinical work that has been conducted today with ivonescimab. Over 1,600 patients have been treated with ivonescimab. Currently, between Summit and Akeso, there are 19 clinical trials around the globe evaluating ivonescimab, 4 of which are Phase III clinical trials, along with 15 Phase I or II trials; 7 of these 19 trials are evaluating ivonescimab in solid tumor setting beyond non-small cell lung cancer. We are sponsoring 2 of these clinical trials, HARMONi and HARMONi-3 2 Phase III clinical trials in non-small cell lung cancer. We are fortunate to have created such a strong partnership and foster an ongoing collaboration with Akeso and the ability to leverage data for multiple solid tumor studies supporting and informing Summit on clinical development in our licensed territories. As a reminder, ivonescimab is our lead investigational compound and the only PD-1, VEGF bispecific antibody in Phase III in the U.S., Canada, Europe or Japan or licensed territories. ivonescimab brings these 2 highly validated mechanics together into one novel molecule targeting both PD-1 and VGEF. What differentiates ivonescimab and its intentional design is its cooperative binding characteristics. Basically in the presence of VEGF, the binding affinity of ivonescimab to PD-1 in vitro increases by 18-fold. In the presence of PD-1, the binding affinity VGEF by over fourfold in vitro. In addition to the half-life of ivonescimab, which is approximately 6 to 7 days compared to the estimated half-life of bevacizumab of 20 days or pembrolizumab of 23 days, combined with a cooperative binding characteristic of ivonescimab and it's…

Thank you, Maky and Bob, and good morning, everyone. We filed this morning, our 10-Q for the first quarter of 2024. Today, I will provide you with an update on the operations and financial position. On the operations front, we continue to enroll both HARMONi and HARMONi-3 trials. We are on track to complete enrollment for patients in HARMONi trial during the second half of this year. We have also initiated to prepare for technology transfer to enable the second supply source for manufacturing of ivonescimab in our territories. On the financial front, I'll discuss for Summit's cash position, updated cash runway guidance and provide some color on our operating expenses. Starting with cash, we ended our first quarter of 2024 with a strong cash position of $157 million. Based on our planned operations, we expect that we have sufficient cash to run our operations through the first quarter of 2025. Turning to expenses. I will speak to both GAAP and non-GAAP numbers. You can refer to our press release for a reconciliation of GAAP to non-GAAP financial measures. To remind, non-GAAP expenses exclude stock-based compensation and onetime charges related to in-process R&D. During the first quarter of 2024, our GAAP R&D expenses were $30.9 million compared to $24.8 million in the fourth quarter of 2023. And non-GAAP R&D expenses were $28.5 million in the first quarter of 2024 compared to $22.4 million for the fourth quarter of 2023. Turning to G&A. Our first quarter 2024 GAAP G&A expenses totaled $11.7 million compared to $11.6 million in the fourth quarter of 2023. And non-GAAP G&A expenses were $4.6 million in the first quarter of 2024 compared to $5.3 million for the fourth quarter of 2023. Non-GAAP operating expenses were $33 million. Aligned with company's focus, the majority of our spending is towards research and development, which is $28.3 million for the quarter on a non-GAAP basis and its focus towards clinical development of ivonescimab, including the clinical trials and technology transfer. And the G&A spend for $4.6 million for the quarter on a non-GAAP basis represents all the functions that provide infrastructure and support for this development. And with that, I will hand it back over to Dave.

Thank you, Bob, Maky and Manmeet. We'll now see if there are any questions that our team can help answer for anyone on the line. Operator, if you could please open the line for any questions.

[Operator Instructions] And your first question comes from Brad Canino with Stifel.

A couple from me. First, can you start by framing how you view the Phase II updates at ELCC? I mean you made the strategic choice to pursue frontline squamous lung as that first Phase III where you're conducting head-to-head against KEYTRUDA, how do these data support that specific strategy?

Yes, Brad, I'll take the question. So a couple of things. First, the data is an update, and it's consistent. So I think that's important for the update. There weren't any major changes. I mean the data still remains strong at squamous as well as non-squamous cancer. I think the purpose for that update was really to make more European investigators aware since we'd only presented at ASCO previously. What was the second question, again?

Well, let me ask another question then -- because you've got the HARMONi-A cohort from your partner Akeso set for presentation at ASCO on May 31. The question is, what does this imply about the potential China CDE decision timing for your partner's second-line EGFR filing? And could the regulatory decision still come after these data?

Sure. Brad, this is Dave Gancarz. I think -- so we don't, at this point, have any insight within -- beyond the update that we've given with respect to the timing of the data we still expected in the second quarter based on the guidance that's been given from Akeso at this point. So I think that this is, again, Akeso's trial that they've both sponsored and analyzed the data for us. So we remain blinded from that front -- but we're working through the details as they become available. But at this point, we can only go on the fact that they have announced that the Q2 timing is expected and so we're proceeding as is.

Okay. And then a similar type of question. Could I ask for a status update for Akeso's 303 interim analysis plan?

Sure, Brad. This is Dave, again. So I think, again, that is a trial that's sponsored and the data would then be analyzed on the Akeso side, so that's separate from Summit. But at this point, as far as we're aware, we have not -- as far as we know, there's been no interim analysis performed yet at this point. Again, they've guided to the second quarter generally on that point.

Okay. And then last for me, just a question on the broader plans for the company at ASCO. And what, if any, gating factors remain for the announcement of some broader pivotal development plan for ivonescimab in the U.S. and EU that was into that on the call?

Yes. We're actively engaging health authorities to sort of put Phase III data or Phase III trials together, rather. It's based on the upcoming Phase II data from Akeso, we've seen very exciting data coming out. We haven't disclosed it, but it should be done shortly.

We will take our next question from Carter Gould with Barclays.

Maybe just to sort of follow up on Brad's question and maybe put a finer point to it. So just to be clear, when we think about sort of the disclosure that comes from Akeso in sort of 2Q on the back or on relation to 301. Essentially, are you going to be finding out that data at the same time as us? Or will there be some sort of gap there that we should be aware of? And I guess the follow-on to that is on the back of those data, have you contemplated any potential changes or amendments to HARMONi-1?

Yes. So let me take the second question. No, we're not contemplating any changes to the HARMONi study. We'll become aware of the HARMONi data when you become aware of it. We became aware of the abstract title release. We'll be eagerly looking for the abstract releases as well as attending the presentation. With that said, the other potential public disclosure is if there's an approval, there would be a release of the label as well in China.

[Operator Instructions] And with no further questions at this time. I would now like to turn the call back to Mr. Dave Gancarz for closing remarks.

I'd like to thank everybody for taking the time to join us this morning on our quarterly earnings call. I hope you have a wonderful day, and thank you very much for your time.

Ladies and gentlemen, this concludes today's call, and we thank you for your participation. You may now disconnect.