Jay Feingold
Analyst · Morgan Stanley. Please go ahead. Your line is open
Thank you, Chris and good morning. I am pleased to present an update today on both our clinical and preclinical programs in addition to providing some additional information regarding our upcoming ASH presentations. Overall, we continue our plan to expand the use of Lonca to earlier lines of therapy for patients with DLBCL, with both our pivotal Phase 2 combination study with ibrutinib and the opening of sites for our confirmatory Phase 3 study in combination with rituximab and to expand the use of Lonca into other cancer types with the pivotal Phase 2 trial in follicular lymphoma. For Cami, we continue involvement of our pivotal Phase 2 trial for patients with relapsed or refractory Hodgkin lymphoma with the trial now 65% involved and recently expanded Cami’s Phase 1b study in solid tumors to add a combination arm with pembro and dosed our first patient. I will also provide a brief update on the Phase 1/2 study for ADCT-602 and the Phase 1 study, ADCT-601, moving into a combination with a checkpoint inhibitor. First, let me give you an update on Lonca and our continuing lifecycle development plan. As we approached the anticipated approval of Lonca next year, we are broadening our lifecycle development program. First, we are investigating its potential as an early line of treatment in relapsed or refractory DLBCL. Our LOTIS 5 trial, the Phase 3 confirmatory clinical trial, evaluating the safety and efficacy of Lonca in combination with rituximab versus standard immunochemotherapy in patients with relapsed or refractory DLBCL, were not eligible for autologous stem cell transplant is now open for enrollment. This study is designed to support a supplemental biologics license application for Lonca as a second-line therapy, and to fill a post-marketing requirement to the FDA for full approval, if accelerated approval was granted for relapsed/refractory DLBCL. We continue to enroll patients in our pivotal Phase 2 trial of Lonca in combination with ibrutinib and relapsed/refractory DLBCL and mantle cell lymphoma, which in a Phase 1b, showed a promising effect on overall and complete response rate along with manageable toxicity. In addition, we are planning to initiate a dose finding study of Lonca in combination with R-CHOP in previously untreated DLBCL patients in the first half of 2021. Finally, we expand to new histologies, but Lonca has demonstrated encouraging activity, including follicular lymphoma that we plan to initiate Phase 2 trial and relapsed/refractory follicular lymphoma in the first half of 2021. With regard to our second lead program, Cami, the pivotal Phase 2 clinical trial in patients with relapsed or refractory Hodgkin lymphoma, who have failed at least three prior lines of therapy, continues to enroll. There are 65 patients enrolled as of November 6 and we remain on track to announce further data in the first half of 2021. Data from this trial is intended to support the submission of the BLA to the FDA. In addition to our Hodgkin lymphoma program, we continue to advance our phase 1b clinical trial of Cami in solid tumors. In September, we presented preliminary data, the ongoing Phase 1b trial in patients with selected advanced locally or metastatic solid tumors in e-poster at the European Society for Medical Oncology Virtual Congress 2020. Data presented, which included pharmacokinetics and biomarker evaluations showed that treatment with Cami is associated in some patients with clinically relevant modulation of immune cells, including an increase in CD4-positive and CD8-positive T cells, an increase in soluble CD25 and cytokines in serum post-dosing in a dose-related increase in the effector T cell to regulatory T cell ratio. This presentation followed the publication of preclinical data related to Cami in the Journal for ImmunoTherapy of Cancer, which demonstrated that single low doses of CD25 targeted ADCs resulted potent and durable antitumor activity against established CD25 negative solid tumors with infiltrating Tregs, both as a monotherapy and in combination with an anti-PD1 checkpoint inhibitor. Based on these data, we’ve expanded the Phase 1b to evaluate the safety, tolerability, pharmacokinetics and the antitumor activity of Cami in combination with pembrolizumab, a checkpoint inhibitor in patients with selected advanced solid tumors. We recently announced that we dosed the first patient in the Phase 1b expansion and we’ll look forward to sharing the data in the future. In our earlier stage pipeline, we have a presentation of ASH analyzing the preclinical activity in the B-cell lymphoma models and potential biomarkers for ADCT-602 targeting CD22, which is currently in a Phase 1/2 development in patients with relapsed or refractory acute lymphoblastic leukemia. We’re also preparing to initiate a Phase 1b combination trial with ADCT-601 targeting AXL in patients with certain solid tumors in the second half of 2021. We continue to advance our preclinical programs towards IND submissions and look forward to providing further updates as these programs advance. We are pleased that eight of our abstracts were accepted for presentation at the American Society of Hematology Annual Meeting, which is being held virtually from December 5 to December 8. Presentations will feature data on three of the companies’ ADCs; Lonca, Cami, and ADCT-602. I’d like to highlight two of Lonca extracts. The first was to provide additional subgroup data in the LOTIS 2 pivotal phase 1b trial and relapsed or refractory DLBCL. This dataset is a more mature data set than previously shared. It will include efficacy and duration of response data, patients, subgroups with high-risk characteristics, as well as patients, who were refractory to first-line therapy, patients refractory to any line of therapy, patients who received prior CAR T or patients, who received prior STEM cell transplants. The second poster will highlight interim results from the ongoing phase 1b trial of Lonca combined with ibrutinib and relapsed or refractory DLBCL or MCL. The poster will provide more mature data on the efficacy and safety for the combination. There will also be three Cami presentations. We have an oral presentation of the interim results from the phase 2 trial of Cami and relapsed or refractory Hodgkin lymphoma. The oral presentation will highlight efficacy and safety data from the first 47 patients enrolled as of August 2020. In addition, we will have a poster presentation of PK/PD data from the phase 1 study in relapsed or refractory Hodgkin and non-Hodgkin lymphoma, and preclinical data showing the anti-tumor activity of Cami in combination with gemcitabine. With that, I will turn the call over to Jenn to give a financial update.