I-Mab (NASDAQ:IMAB) Q4 2022 Earnings Call Transcript
I-Mab (NASDAQ:IMAB) Q4 2022 Earnings Call Transcript March 31, 2023
Tyler Ehler: Good morning to everyone and thank you for joining us this morning. Thank you all for standing by. And I'd like to take this opportunity to welcome you all to the I-Mab BioPharma Full Year 2022 Financial Results and Business Update Conference Call. This is Tyler Ehler here. I-Mab's Senior Director of Investor Relations. At this time, all participants are in a listen-only mode. At the end of this call, we'll conduct a Q&A session and instructions will follow at that time. Earlier today, we issued a press release providing a review of our financial results for the full year ended December 31, 2022, as well as an overview of our recent corporate highlights and upcoming milestones. The press release can be accessed on the Investor Relations tab on our website at ir.i-mabbiopharma.com.
Joining me today on the call from I-Mab senior management team are Dr. Jingwu Zang, our Founder and Chairman; Dr. Andrew Zhu, our Acting CEO; and Mr. Richard Yeh, our Interim CFO and COO. Dr. Andrew Zhu will provide a high level overview of our recent achievements and upcoming milestones and also provide an update on our R&D progress. Mr. Yeh will then provide a summary of our financial results for the full year ended December 31, 2022 before we turn the call over to the operator to take your questions. Please note that today's discussion will contain forward-looking statements relating to the company's future performance and are made under the Safe Harbor provisions of the US Private Securities Litigation Reform Act of 1995. Such statements are not guarantees of future performance and are subject to certain risks and uncertainties, assumptions as well as other factors.
Some of these risks are beyond the company's control and could cause actual results to differ materially from those mentioned in today's press release and in today's discussion. A general discussion of the risk factors that could affect I-Mab's business and financial results is included in certain filings of the company with the Securities and Exchange Commission. The company does not undertake any obligation to update this forward-looking information except as required by law. We also discuss specific non-GAAP financial measures during today's call. The presentation of which is not intended to be considered in isolation or as a substitute for the financial information prepared and presented in accordance with US GAAP. Please see the financial results press release issued today for a definition of non-GAAP financial measures and a reconciliation of GAAP to non-GAAP financial results.
And with that, I'll now turn the call over to Dr. Andrew Zhu, our Acting CEO. Dr. Zhu. Please go ahead.
Andrew Zhu: Thank you, Tyler. It's a pleasure to welcome all of you to our call today. I want to take this opportunity to discuss our key business update and major progress in core asset development for the year ended December 31st, 2022. Since the start of 2022, the company faced multiple challenges, including, but not limited to geopolitical issues such as ADR delisting risks, macroeconomic factors, including interest rate hikes and COVID-19 pandemic. In response to these challenges, the company made several strategic efforts to reposition the overall business and prioritize its pipeline. These measures resulted in a streamlined corporate structure and workforce as well as focused development of five key assets, leading to a significant reduction in the cash burn rate in 2022 and beyond.
These efforts have allowed us to achieve critical milestones for our prioritized pipeline and deliver near-term value. In terms of the ADR delisting risk, on December 15th, 2022, the PCAOB issued a report that vacated the previous determination and removed mainland China and Hong Kong from the list of jurisdiction where it is unable to inspect or investigate completely registered public accounting firms. For this reason, the company does not expect to be identified as a commission identified issuer under the HFCAA after it files the annual report on Form 20-F for the fiscal year 2022. This has removed a significant headwind the company faced in 2022. With the above mentioned strategic efforts on the pipeline development front in 2022, we achieved 13 key clinical milestones, including positive results, including positive data readouts for three of our key assets lemzoparlimab, uliledlimab and givastomig.
Here we highlight the five key clinical assets that we have prioritized. These assets are novel, highly differentiated and among the frontrunners globally and all in China. First of all eftansomatropin alfa, a long-acting growth hormone. We completed enrollment of 168 patients for our Phase 3 trial in the first half of 2022. We expect to have a data readout in the second half of 2023, followed by subsequent BLA submission. In November 2021, we announced a commercial partnership with Jumpcan, a top 100 Chinese pharmaceutical company specialized in the pediatric space. Second, felzartamab, a differentiated CD38 antibody. In addition to the completed Phase 2 registration study, our Phase 3 study for second line multiple myeloma is on track despite the impact of COVID-19.
Continue to make progress with the local manufacturing plan in preparation for BLA submission and seek a potential commercial partnership. Next, we have three key assets that I will discuss in more detail later. Lemzoparlimab, a differentiated CD47 antibody has reached the Phase 3 stage. Uliledlimab, a differentiated CD73 antibody and a global frontrunner, has demonstrated impressive antitumor activity, a non-small cell lung cancer in a Phase 2 trial. The clinical response is correlated with tumor CD73 expression. Next, givastomig, a Claudin18.2 4-1BB bispecific antibody with a favorable safety profile and single agent efficacy signal. I would like to start by highlighting our highly differentiated CD47 antibody lemzoparlimab, which has certainly attracted so much attention in the immuno-oncology field because of its leading position to be among the first CD47 antibody drugs potentially approved for hematological malignancies.
I would like to remind you that lemzoparlimab is differentiated by design to avoid binding to red blood cells while maintaining strong antitumor activity. This differentiation includes the expected favorable safety profile with no priming dose required. Less RBC-mediated sink effect and compelling antitumor activity across several . This molecular differentiation has been validated preclinically and has translated into clinical advantages that are being validated. I should also add in September 2022 AbbVie and I-Mab entered into an amendment to the original license and collaboration agreement. As a result, both parties are continuing to collaborate on the global development of anti-CD47 antibody therapy. Here I want to highlight lemzoparlimab safety differentiation with clinical data.
In a systemic safety data review of approximately 200 patients who are treated with lemzoparlimab either as monotherapy or in various combinations. We have seen a compelling safety profile today. Overall, the safety data from both the US and China studies continue to be favourable when administered without a priming dose regimen. MTD was not reached in any dose regimen. Mild TRAE in solid tumor and NHL. And we have seen a good safety profile in combination with Azacitidine in AML and MDS and no grade five hematological TRAE's have been reported. In the Phase 2 study in MDS, we have observed a favourable safety profile shown on the right. Of note this study enrolled more patients with worse baseline conditions than the comparable clinical trials conducted in Western countries due to the underlying disease that is heavily influenced by clinical practice in China.
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In this group, 74% of patients had grade three and above anemia, and 51% of the patients had grade three and above thrombocytopenia at baseline. The overall safety results showed that lemzoparlimab even without the priming dose was well tolerated in combination with azacitidine and the safety profile was comparable with that of azacitidine monotherapy. Next, I would like to highlight the clinical efficacy results presented at ESMO 2022. Of the 53 patients enrolled as of March 31st, 2022 for patients who began treatment six months or longer prior to the analysis, the overall response rate and complete response rate were 86.7% and 40% respectively. For those who began treatment four months or longer, the ORR was 86.2% with a CRR of 31%. I'm happy to share that the updated results from the most recent data analysis of 62 patients have demonstrated consistent clinical efficacy, including ORR and CRR, with no new safety signals identified.
We are planning to present the updated data at a major scientific meeting in the second half in 2023. Here, I would like to summarize the key progress on lemzoparlimab. We have observed consistent and favorable safety profiles in more than 200 patients with hematologic and solid tumors treated with lemzoparlimab. Our Phase 2 MDS trial demonstrated a consistent efficacy trend, including ORR and CRR, with longer follow up time since the ESMO data presentation in September 2022. Lemzoparlimab in combination with azacitidine has obtained approval from the CDE to initiate a Phase 3 registrational trial for the first line treatment for patients with newly diagnosed higher risk MDS. Importantly, AbbVie and I-Mab entered into an amendment to the original licensing collaboration agreement.
As a result, both parties are continuing to collaborate on the global development of anti-CD47 antibody therapy. Next, I'd like to turn to uliledlimab, another global frontrunner that we are developing with a focus on non-small cell lung cancer. As previously reported uliledlimab is differentiated by design to avoid the hook effect. So what is the hook effect? Simply put, the hook effect is characterized by an abnormal phenomena that a drug molecule paradoxically loses the effect at higher doses. As shown in the figure on the right side uliledlimab achieved complete enzymatic inhibition without the hook effect. In contrast, oleclumab could only achieve partial inhibition with hook effect with higher concentrations. Uliledlimab differentiation comes from a unique binding epitope at the C-terminals.
We believe the differentiation give uliledlimab the potential to be best-in-class with an improved therapeutic window and more flexibility when combined with other antitumor drugs. We have observed robust efficacy data in Stage 4 non-small cell lung cancer with high CD73 expression and we are currently conducting focusing our efforts on a biomarker-guided pivotal trial in advanced non-small cell lung cancer in the second half of 2023. So on the left side of this slide is our PK study. It really demonstrated linear PK profiles at 5 mg per kg weekly or higher, indicating target saturation. A 30 mg per kg saturation and complete inhibition of CD73 activity were observed in human tumor biopsy samples. Studies of uliledlimab in combination with an anti-PD-1 or PD-L1 have shown treatment is safe and well tolerated with no dose limiting toxicities observed.
Most treatment related adverse events were either grade one or grade two. Uliledlimab RP2D has been determined to be 30 mg per kg every three weeks in combination with toripalimab to 40 milligram every three weeks. This slide highlights the clinical experience of our US Phase 1 study of uliledlimab in combination with atezolizumab in patients with refractory solid tumors. About 13 efficacy evaluable patients, three responses were seen, including 1 PR with an overall response rate at 23% and the disease control rate at 46%. More importantly, shown on the right, all three responders were identified to exhibit higher expression of tumor 73, CD73 as compared to non-responders. This provides the initial indication that high CD73 expression may correlate with the clinical activity of uliledlimab.
Here, I want to highlight the latest clinical development update on uliledlimab. As of December 2022, 70 patients had been enrolled in the Phase 2 study of uliledlimab in combination with toripalimab, a PD-1 antibody in Stage 4 non-small cell lung cancer patients. As a high level summary, at the time of the first data cut-off in March 2022, ORR was 26% and the DCR was 74% for the first 19 evaluable patients. Remarkably in patients with high CD73 expression defined of at least 35% expression level in tumor cells or immune cells. A much higher ORR was observed with a 57% ORR and DCR at 100%. Similar efficacy data in relation to CD73 expression were obtained in August 2022 with 32 evaluable patients and December 2022 with 45 evaluable patients showing a consistent trend of efficacy signal with an overall ORR greater than 30% in all patients and an ORR approximately 50% in CD73 high expression patients as compared to approximately 10% to 15% for those with CD73 low expression.
The efficacy data continued to mature for ORR and PFS in 2023. Our data have demonstrated that higher clinical response of uliledlimab and PD-1 combination therapy correlated with high tumor CD73 expression in patients with advanced non-small cell lung cancer. I want to summarize the key development of uliledlimab on this slide. Uliledlimab is a differentiated CD73 antibody with best-in-class potential. It can achieve complete CD73 inhibition without the hook effect. Uliledlimab has a favorable safety profile and the combination of uliledlimab/toripalimab demonstrated robust anti-tumor activity in non-small cell lung cancer with the clinical responses correlating with CD73 expression. With regard to our further development plan for uliledlimab, a data readout for the 70 patients in our Phase 2 study is expected for ORR in the first half of 2023 and for PFS in the second half of 2023.
The company plans to present the data at a major scientific venue in 2023 and further clinical development plan is being finalized to include a biomarker-guided pivotal trial of uliledlimab in combination with PD-1 therapy in Stage 4 non-small cell lung cancer in second half of 2023 in China. And a global study of uliledlimab in combination with a PD-1 therapy and chemo regimen in advanced non-small cell lung cancer. In parallel, a companion diagnostic kit is being developed with Wuxi Diagnostics and is on track for the planned studies. With the new data, the company has been actively engaging in a potential global partnership in sync with the planned global study. The last asset I'd like to touch on today is givastomig, our novel Claudin18.2 4-1BB bispecific antibody that has also made significant clinical progress.
Givastomig is a novel bispecific antibody with one arm targeting Claudin18.2 and the other targeting 4-1BB through conditional or local activation. The key differentiation of givastomig is twofold. Firstly, it binds to tumors with a wide range of Claudin18.2 expression levels, including lower expression, as demonstrated on the right in pre-clinical models. Secondly, the 4-1BB arm of givastomig is designed to function upon local tumor engagement as a mechanism of conditional activation. This feature makes givastomig a unique T cell activator only localized at the tumor site without systemic toxicities. For example liver toxicity and systemic cytokine release, that are typically associated with 4-1BB. Here. I'd like to take a moment to highlight givastomig's unique differentiation compared to other Claudin18.2 target agents.
The differentiated molecular design makes givastomig unique among Claudin18.2 target agents including ADC and zolbetuximab. Zolbetuximab, a Claudin18.2 monoclonal antibody. Givastomig has the potential to target a broader population, including those with lower Claudin18.2 expression. In contrast, the antitumor activity with zolbetuximab and AGC is rather limited to patients with higher Claudin18.2 expression in the tumor. Secondly, the 4-1BB arm of givastomig is designed to function upon local tumor engagement as a mechanism of conditional activation. This feature makes givastomig a unique T cell activator with no systemic toxicities, including hepatic toxicity and cytokine release syndrome. In addition, givastomig exhibits less gastrointestinal toxicity that that is commonly observed for other Claudin18.2 targeted therapeutics.
Together. givastomig is clinically positioned to target gastric and pancreatic cancers that have lower Claudin18.2 expression and are considered not eligible for treatment by zolbetuximab clotting Claudin18.2 ADC respectively. And those with high 18.2 expression by offering a more favorable safety profile over other Claudin18.2 therapeutic modalities. Zolbetuximab has the potential to be combined with first line standard chemo PD-1 therapy in gastric cancer and also in several other tumor types. The preliminary clinical data are consistent with the differentiation of givastomig. Here, I want to summarize the ongoing Phase 1 dose escalation trial of givastomig in patients with advanced or metastatic solid tumors. By the end of 2022, eight dose cohorts have been completed up to 15 mg per kg without encountering dose limiting toxicity.
Most treatment related adverse events are grade 1 or grade 2. There is a dose dependent increase of drug exposure and soluble 4-1BB in serum, suggestive of a favorable PK/PD profile and potentially a longer dosing interval with durable T cell activation. A 5 mg per kg or above Ctrough reaches its target concentration in over 90% of the patients observed. Meanwhile, PD data indicate that T cell activation occurs only at tumor site. As mentioned, we have disclosed a PR at 5 mg per kg last July and we have since seen additional single agent efficacy signal including PR and stable disease in different cohorts as well. We expect to share the Phase 1 data in the second half of 2023 and we continue to engage in discussions for a potential global partnership.
Finally, I would like to highlight the expected catalysts in the near future. The first area is really to deliver our pre-BLA assets. We expect a Phase 3 data readout on eftansomatropin in the second half of 2023 followed by subsequent BLA submission. We are particularly excited about this asset and the market opportunity that exists in China. We're also on track with Phase 3 for felzartamab and a potential commercial partnership. The second area is on the clinical development of lemzoparlimab. We will initiate the Phase 3 clinical trial for lemzoparlimab as a first line MDS treatment. We expect our Phase 3 study in China will support a planned BLA submission with the goal of being first-to-market and first-in-class in China. Next is uliledlimab, our exciting CD73 antibody.
This year, we expect an additional data readout for uliledlimab Phase 2 non-small cell lung cancer trial while planning to initiate a biomarker-guided pivotal study in Stage 4 non-small cell lung cancer in the second half of 2023. We continue to engage in discussions for a potential global partnership. Finally, we continue to be excited by the development we see in givastomig. We are currently completing our Phase 1 clinical trial and continue to engage in discussion for a potential partnership. Lastly, we expect to initiate new INDs this year. As a reminder, I have not even touched on the multiple pre-clinical stage assets we have in development. The company continues to focus on fundamentals with innovative strategies. With that, I'm happy to turn to over to Richard, who will discuss our financials.
Richard?
Richard Yeh: Thank you, Andrew. Let me turn to review our financial results for the full year ended December 31st, 2022. As of December 31st, 2022, our cash and cash equivalents and short-term investments were RMB3.5 billion or US$514 million compared with RMB4.3 billion or US$671 as of December 31st, 2021. I-Mab's strong cash balance is expected to provide the company with adequate funding to support its key business operations over the next three years. Total revenue for the full year of 2022 were RMB-221.6 million or US$32.1 million compared with RMB88 million for the full year of 2021. The decrease in 2022 net revenue was primarily due to a one-off accounting treatment of US$48 million recorded in the second half 2022, following the amendment to the original licensing and collaboration agreement with AbbVie in August 2022.
Further details can be found in our annual financial results. The decrease was partially offset by the revenue of RMB92.6 million or US$30.4 million from licensing and collaboration arrangements and the supply of pipeline products. Now let me turn to the R&D expenses. Research and development expenses for the full year of 2022 were RMB904.9 million or US$131 million compared with RMB1.2 billion for the full year of 2021. The decrease was primarily due to the reduced demand for pipeline products as the company prepared to procure the sufficient stock for the pipeline products in 2021 and a lower share-based compensation expenses. Administrative expenses for the full year of 2022 were RMB720 million or US$104.4 million compared with RMB899 million for the full year of 2021.
The decrease was primarily due to lower share-based compensation expenses in relation to the management personnel and optimized control of operation and administrative expenses. Net other expenses for the full year of 2022 were RMB126.6 million or US$18.4 million compared with net other income of RMB83.2 million for the full year of 2021. The change was primarily caused by unrealized exchange losses due to fluctuation in the exchange rate of RMB against the US dollars in 2022. I would like to reiterate that -- we maintain a strong cash position of US$514 million that we held at the end of 2022. Our current cash position combined with potential upcoming milestone payments from the previous out-licensing deals and the collaborations is expected to further strengthen our cash reserves.
This has been largely achieved by our move to focus on five key clinical assets in our pipeline through our reprioritization effort in mid-2022. We also streamlined our corporate structure. This has also been included in streamlining our workforce through a headcount optimization that was in line with the reprioritization of our pipeline reduction in our overall operating expenses and corporate structure. With this we have implemented cost initiatives that we intend to maintain committed as we were determined to maintain operational efficiency and a very lean operational budget. Overall, this represents about a 20% reduction in cost in 2022. We -- expected to further reduce in 2023 as we continue to focus on where we can deliver the most important value to our shareholders.
In closing, our current strong cash position will provide us with ample flexibility to support our R&D activities in the next three years. With that, I would now like to turn the call back to Tyler and begin our Q&A sessions. Tyler?
Tyler Ehler: Thank you, Richard and thank you Dr. Zhu for your time and for your insights today. Next, we will begin our Q&A session. If you do have any questions please use Zoom's Raise Your Hand feature and we'll unmute you for your questions. First question we see is from Kelly Shi. Kelly, please go ahead.
Kelly Shi: Thank you, Tyler, and thank you for taking my questions. My first question is, has I-Mab been able to resolve its delisting risks fully and also have follow-up. Thanks.
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