Welcome to the ADC Therapeutics First Quarter 2022 Financial Results Conference Call. My name is Mitchell and I will be your operator for today's call. At this time, all participants are in a listen-only mode. Later, we will conduct a question-and-answer session [Operator Instructions]. I will now turn the call over to Amanda Hamilton, Investor Relations Manager. Amanda, you may begin.

Thank you, operator. This morning, we issued a press release announcing our first quarter 2022 financial results and the business update. This release is available on the ADCT Web site at ir.adctherapeutics.com under the Press Releases section. On today's call, Chris Martin, Former Chief Executive Officer; Jennifer Herron, Chief Commercial Officer; Joe Camardo, Chief Medical Officer; and Jenn Creel, Chief Financial Officer, will discuss recent business highlights and review our first quarter 2022 financial results before opening the call for questions. We will also have a brief introduction from our new Chief Executive Officer, Ameet Mallik. As a reminder, this conference call may contain forward-looking statements. Such statements are subject to risks and uncertainties. For additional information concerning forward-looking statements and factors that could cause actual results to differ materially from those expressed or implied in these statements, we refer you to the section titled Cautionary Statement regarding forward-looking statements and Exhibit 99.3 of our report on Form 6-K filed with the US Securities and Exchange Commission earlier today. Such statements speak only as of the date of this conference call and we expressly disclaim any obligation or undertaking to update these forward-looking statements unless required to do so by applicable law. Today's presentation also includes non-IFRS financial measures. These non-IFRS measures have limitations as financial measures and should be considered in addition to and not in isolation or as a substitute for the information prepared in accordance with IFRS. You should refer to the information contained in the company's first quarter earnings release for definitional information and reconciliations of historical non-IFRS measures to the comparable IFRS financial measures. It is now my pleasure to pass the call over to Chris Martin. Chris?

Thank you, Amanda and good morning ,everyone. Since co-founding ADC Therapeutics in 2011, I've had the privilege of taking our proprietary ADC technology from discovery, to the bench, to the clinic, then to our first FDA approval of ZYNLONTA. It is extremely rewarding to see ZYNLONTA benefiting patients and addressing an unmet need in the third line plus DLBCL market. I've seen the company grow from a private startup to a New York Stock Exchange listed company. We now have over 300 employees, a commercial product on the market in ZYNLONTA, Cami progressing to a BLA submission and five promising solid tumor programs in development. The approval of ZYNLONTA was a highlight for me and since then, I've been contemplating my next steps. With the company and the pipeline in such a strong position, I’m delighted to hand the CEO role to Ameet Mallik. I'm extremely confident that he is the right person to lead the company into its next chapter of growth from here. Logistically, I will serve as an advisor to the company the next three months to ensure a seamless transition. And I'm very happy to be serving as a non executive member of the Board of Directors and the chair of the Science and Technology Committee. Ameet has a significant experience in oncology and commercialization and a compelling vision for leading ADC Therapeutics in its next phase of growth. Ameet spent 16 years at Novartis, where he ultimately served as Executive Vice President and Head of US oncology a 6 billion division of Novartis. Prior to that, he held various leadership roles at Novartis Oncology, including Head of Global Marketing, Value and Access and Head of Latin America and Canada. He also served as global head of biopharmaceuticals and oncology injectables at Sandoz, and Head of Global Strategic Planning at Novartis Pharmaceuticals. Ameet most recently served as CEO of Rafale Holdings, a biotech company focused on developing oncology and immune therapies. ADCT will benefit greatly from Ameet's wide range of operational and strategic experiences, as well as his oncology expertise. I would like to formally welcome Ameet to the ADC team and invite him to say a few words. Ameet?

Thank you, Chris, for the kind introduction and the warm welcome. I'm thrilled to join the ADC Therapeutics team. I've had the pleasure of meeting the board and many members of the executive team, and I'm impressed by the company's unwavering commitment to developing novel cancer treatments for patients. In addition to the people and culture of the company, I was drawn to the industry leading ADC platform and cutting edge technology. ADCT has an impressive portfolio of pipeline assets and a very productive research team. In addition, I'm pleased to join a commercial stage company with a differentiated product in ZYNLONTA and its potential to move into earlier lines of therapy. I'm excited by the opportunity to build on the solid foundation to take the company to our next phase of growth and to create sustainable value for all of our stakeholders. In the coming weeks, I look forward to meeting our employees across sites to understanding the business and portfolio plans at a deeper level and to engaging with many of you. I want to thank Chris for his partnership and his transition, and I look forward to continuing to work with Chris in the future. With that, I will hand the call back over to Chris for business updates.

Now I'm very pleased to share an update on our progress during the first quarter of 2022. Starting with the ZYNLONTA launch, we delivered $16.5 million in net sales in Q1. We are encouraged by the progress of the launch to date and our ability to provide a truly differentiated treatment option to DLBCL patients. Sales in the first quarter were unfavorably impacted by our customers’ modest inventory build at the end of 2021, and there were fewer new patient starts in DLBCL in Q1, which was exacerbated by the Omicron surge. However, we are pleased to see increasing product awareness, familiarity, trial and repeat ordering. With face to face opportunities trending upwards through Q1, we are confident in our ability to continue to grow ZYNLONTA as we strive to establish ZYNLONTA as a third line standard-of-care for DLBCL. Jennifer Herron, our Chief Commercial Officer, will share more details on the Q1 launch dynamics a bit later in this call. Moving on ZYNLONTA development plan. We are exploring the potential of ZYNLONTA in combination with rituximab in first and second line DLBCL. We have our LOTIS-5 clinical trial, which is the ongoing confirmatory Phase 3 study in second line patients who are not eligible for stem cell transplant. As you will recall, we successfully completed the safety leaded for this study, which also showed additive efficacy. And we continue to enroll patients in the randomized portion of this study. In addition, we also plan to initiate LOTIS-9, our first line study in unfit or frail patients later this year. For Cami, the 12-month patient follow-up in the pivotal Phase 2 trial has been completed. We have submitted that data in an abstract for an upcoming hematology conference, and we are preparing for a pre-BLA meeting with the FDA. We remain excited about our promising pipeline of solid tumor programs, including three clinical programs, these are; Cami targeting CD25, ADCT-901 targeting KAAG1 and ADCT-601 targeting AXL. We also have two other solid tumor programs in IND enabling studies; ADCT-701 targeting DLK-1 and ADCT-212 targeting PSMA. Dr. Joe Camardo, our Chief Medical Officer, will elaborate on these and our other programs shortly. Finally, we ended the quarter with a strong cash position of $431 million, which gives us a substantial cash runway to continue investing in the ZYNLONTA launch, lifecycle and our pipeline. In addition, we have up to $100 million in potential milestones from our Healthcare Royalty partners agreement. Looking to expand our access to patients globally, we are pleased that the Overland ADCT BioPharm joint venture continues to make good progress with the continued enrollment of the pivotal trial. We are making solid progress in our partnership with Mitsubishi Tanabe Pharmaceutical Corporation in Japan. And finally, we continue to advance our regulatory submission in Europe. I would now like to turn the call over to Jennifer to report on the ZYNLONTA launch. Jennifer?

Thank you, Chris and good morning, everyone. I am pleased to share an update on the progress of the ZYNLONTA launch and report our Q1 performance with ZYNLONTA net sales of $16.5 million. As we mentioned on the Q4 earnings call, we did see a modest customer inventory build at the end of the year, which we believe we have worked through during the first quarter. In addition, there was a decrease in DLBCL new patient starts in Q1 2022 versus the prior quarter. The decrease in new patient starts is largely attributable to insurance benefit reverification as well as COVID related impact. The Omicron surge during the first half of Q1 also impacted face to face interactions, especially with comprehensive cancer centers, academic institutions and integrated healthcare systems. Regarding ZYNLONTA Q1 launch dynamics, we have made significant progress in terms of increasing product awareness, familiarity, trial and adoption. We have seen increased ZYNLONTA patient share in the third line plus setting with healthcare professionals confirming that their real world experience with ZYNLONTA is consistent with our LOTIS-2 pivotal data. Importantly, face-to-face engagements increased throughout the quarter and are above the industry benchmark of 50% of total interactions. Since launch over 75% of accounts that have ordered ZYNLONTA have reordered, reflecting a positive physician and patient experience. Over 96% of our priority accounts have ordered ZYNLONTA with approximately 90% of priority accounts reordering. Importantly, 94% of NCCN centers have ordered ZYNLONTA. In Q1, we continue to drive account depth and breadth. We grew our ordering account base 40% versus 2021 with two thirds of Q1 new accounts coming from the community, and we expect continued new community account acquisition with the full execution of our permanent J-code. With higher volumes of third line plus patients in academic centers, we continue…

Thank you, Jennifer. I will start with updating you on the ZYNLONTA development programs. We continue to direct our efforts to the combination of ZYNLONTA with rituximab in both the second and first line treatment for DLBCL. This combination offers the opportunity for patients to be treated with a regimen that will be effective, well tolerated and straightforward to administer. And this regimen will also address significant unmet needs that persist despite recent advances and other treatments for DLBCL. The Phase 3 registrational study LOTIS-5 in second line DLBCL is proceeding for patients who are non-eligible for stem cell transplant. The safety part of the trial showed good safety and good tolerability, and the data suggests the combination is adequate. Based on this, the randomized phase of the 350 patient trial continues to enroll at sites around the world. Later this year, we will initiate LOTIS-9, a study to evaluate ZYNLONTA in combination with rituximab in first line DLBCL patients who are unfit or frail. This is a segment of the first line DLBCL patient population that is unable to tolerate the full R-CHOP regimen. Our advisors tell us that there is a significant unmet need in these unfit or frail patients. For these patients, there have been no specific advances that take advantage of the new drugs, partly because these patients are routinely excluded from clinical trials. We have engaged with physicians and oncology networks who see unfit and frail patients on a regular basis, and there's keen interest to find a new regimen that will be an improvement and an innovation for this population. This quarter, we will also initiate our LOTIS-7 umbrella study. Based on strong preclinical data and our interest to develop combinations for ZYNLONTA with new drugs, this study will allow multiple combination arms. We…

Thank you, Joe and good morning, everyone. As we reported in the press release issued earlier today, ZYNLONTA net sales were $16.5 million for the first quarter 2022. As of March 31st, we had cash and cash equivalents of $431 million as compared to $467 million as of December 31, 2021. This does not include up to $100 million in potential milestones from our Healthcare Royalty partners transaction. During the first quarter, we received the $30 million upfront from Mitsubishi Tanabe for a ZYNLONTA Japanese license agreement. We used approximately $34 million in net cash for operating activities in the first quarter of 2022. R&D expenses were $49 million to the first quarter 2022 compared to $39 million for the same quarter 2021. R&D expense increased for the quarter ended March 31, 2022 as compared to the same quarter in 2021 as a result of our investments in ZYNLONTA trials in earlier lines of treatment and advancing our broad portfolio. Selling and marketing expenses were $18 million for the first quarter 2022 compared to $14 million for the same quarter 2021. The increase in selling and marketing for the quarter reflects the expenses for the ZYNLONTA launch and ongoing commercial efforts as ZYNLONTA was approved in the second quarter of last year. G&A expenses were $19 million for the quarter compared to $18 million for the same quarter 2021. G&A expenses increased for the first quarter 2022 as compared to the same quarter and 2021, primarily due to increases in professional fees associated with the Japanese license agreement. Net loss was $17 million for the first quarter compared to a net loss of $52 million for the same quarter 2021. Our diluted net loss per share was $0.22 in the first quarter compared to a net loss per share of…

Thank you, Ameet, Jennifer, Joe and Jenn. To conclude, in the first quarter, we remain focused on executing on all areas of the business and we are well positioned to achieve our key objectives going forward. This includes driving the ZYNLONTA launch, working to develop ZYNLONTA in other lines of therapy, continuing to expand our geographic reach and advancing our pipeline of differentiated ecological and solid tumor programs. I'm looking forward to working with Ameet and the ADCT team. Now the team will be available for questions. Operator?

Thank you [Operator Instructions]. And our first question comes from the line of Matthew Harrison with Morgan Stanley.

I'm Steve for Matthew. I want to ask for ZYNLONTA launch dynamic. I want to ask about how much impact was for Omicron versus new patient start, and have you ever seen an inflection in new patient starts in the recent months?

As we've mentioned, the launch environment and both and the third line plus DLBCL market dynamics have been uniquely challenging. But we're pleased with the progress we've made since launch of ZYNLONTA through Q1, which is less than a year on the market. I did mention in my remarks the Q1 headwinds of both the Q4 inventory build and burn, as well as the Omicron related impact, and it's hard to really separate out the two. As you know, we don't get necessarily patient level data but we did watch account activity carefully in Q4. I did mention that in Q1 we did not see an inventory build, the inventory levels have normalized. So I think that those impacts of lower level of patients presenting for treatment as well inventory build are the result of the Q1 net sales of $16.5 million.

The second part is, have you seen an inflection in new patient starts in recent months?

So at this time, we're not going to comment on Q2, we’ll be reporting our Q2 results in the August timeframe. We are encouraged though by the increased face-to-face interactions that we've seen opening up as we progress through Q1. We're very excited about the opportunity to fully launch our J-code, which was effective as of April 1st. Understanding that over time we'll be able to bring ZYNLONTA to patients in need in the community, as the patient distribution is a little different than in the academic institutions that see a fair number of concentrates, third line plus DLBCL patients. We're very excited that the ZYNLONTA product profile is holding up in the marketplace as we saw in LOTIS-2 and confident that we will be able to establish ZYNLONTA as a third line standard of care.

[Operator Instructions] And our next question comes from the line of Kelly Shi with Jefferies.

My first question is, would you be able to share the information on the breakdown in sales amount of patients who had a prior CAR-T treatment versus like a no prior CAR-T treatment? And my second question is, would you expect the patient prescribed from community centers having different patient baseline regarding the proportion of patients with prior CAR-T treatment? And if so truly expect a different sales ramp up at a community center versus academic centers?

Jennifer, do you want to take that? I don’t know also, Joe might want to comment from the medical side afterwards.

Chris, I'll take the first part and then I'll ask Joe for his input as well. So Kelly, thanks for your question. We’re very excited about the community opportunity. We do appreciate that on a per physician basis, the concentration of third line plus DLBCL patients is less than we see in the academic centers where we do have concentrated third line plus patients. In terms of your question with regard to prior CAR-T, we don't necessarily have patient level data so that we could understand their prior therapies or even their future therapies after they received ZYNLONTA. We have seen a lot of enthusiasm from thought leaders about the post CAR-T setting, because it is an emerging area of high unmet medical need. In the community what we're excited about is the opportunity to offer our differentiated product profile to patients in the community who perhaps are not CAR-T eligible or don't want to make the trip to a CAR-T center, because of our differentiated product profile, which has very robust single agent efficacy, very respectable response rates, including 25% CR with a very fast time to CR in just six weeks. And so for patients that want to stay in the community, we do think ZYNLONTA is the best agent for them in the third line plus setting. So with the J-code, we're excited about bringing ZYNLONTA into the community for patients who need it.

[Operator Instructions] And I'm showing no further questions at this time. And I would like to turn the conference back over to Chris Martin for any further remarks.

Operator, I thought you might have someone there. Well, thank you very much for joining our call today. It's been a real pleasure at leading ADC Therapeutics over the last 11 years. And in particular, I would like to thank each and every one of our employees for their real commitment to the company and their passion for the science and for serving patients. This has really been at the core and the driving force behind the progress of everything we've done, and will continue to be so I'm sure. I've also enjoyed working with you and getting to know many of you over the years. I'm delighted to be handing over to Ameet to lead ADC Therapeutics to the next chapter of our growth, and I'm sure you will enjoy working with him. So thank you all for your continued support. We look forward to keeping you updated on our progress. Have a nice day everyone. Thank you.

This concludes today's conference call. Thank you for participating. You may now disconnect. Everyone, have a great day.