Research we fund

The goal of our work is to use a “bench to bedside and back” approach to develop new treatments for patients with relapsed/refractory AML. Through genetic analysis of patients who relapse or do not respond to standard and investigational treatments, we discover potential resistance mechanisms. In the lab, we test novel drugs and identify new drug targets that may address these resistance mechanisms when used in combination with other therapies. The overall goal of our research program is to improve treatment options and survival of patients with refractory AML.

RNA splicing is a central metabolic pathway that is frequently perturbed in hematopoietic malignancies (HMs) that harbor mutations in spliceosome components (most commonly affecting SRSF2, SF3B1, U2AF1, or ZRSR2). These mutations are particularly prevalent in myeloid malignancies (e.g., MDS, MDS/MPN, sAML), but recent pan-cancer studies have implicated aberrant splicing in >30 tumor types. The Project Leaders have probed the molecular consequences of aberrant splicing and identified critical pathways that are amenable to targeted inhibition, including the DNA damage response (Graubert/Walter), the nonsense-mediated RNA decay (NMD) pathway (You/Walter), the spliceosome itself (Abdel-Wahab/Walter/Graubert), and others. To date, effective therapies for HMs have not capitalized on these unique vulnerabilities. The goal of this SCOR is to generate testable clinical hypotheses based on careful mechanistic studies in pre-clinical models and to rapidly move these ideas into the clinic in the near term.

We focus on blastic plasmacytoid dendritic cell neoplasm (BPDCN), an aggressive blood cancer with limited treatment options and poor outcomes. We want to understand what causes the disease, develop laboratory tools, and identify new treatments and ways to overcome therapy resistance. We have translated our discoveries to clinical trials. Our goal is to continue this bench to beside approach to develop the next generation of BPDCN therapies that improve survival and minimize treatment toxicity.

Peripheral T-cell lymphomas (PTCLs) are poorly understood and patients with PTCL are underserved by current therapies. The most common subtypes (among >20) are PTCL-not otherwise specific (NOS), angioimmunoblastic T-cell lymphoma (AITL), and anaplastic large cell lymphoma (ALK- ALCL). Rational treatment strategies for these lymphomas are lacking, largely due to the insufficient characterization of PTCL pathobiology and historic paucity of faithful models. Over the past 4 years, our groups and others have identified recurrent alterations in PTCL subsets, developed targeted agents against PTCL and established an unprecedented repository of PTCL models for in vitro and in vivo interrogation. A clinical trial led by director Dr. Horwitz established a new standard-of-care for upfront treatment of CD30+ PTCLs. Additional trials developed through this SCOR have advanced therapeutics targeting PI3 kinase (duvelisib), JAK1/2 (ruxolitinib) and IDH2 (enasidenib) for relapsed/refractory PTCL. The central goal for the next 5 years of support is to establish informed combination strategies that eradicate resistant populations and thereby extend the duration of meaningful responses.

In August 2017, LLS TAP partnered with Ryvu Therapeutics (formerly known as Selvita) to support "A Phase Ib Study of SEL120 in Patients With Acute Myeloid Leukemia or High-risk Myelodysplastic Syndrome."

Ryvu Therapeutics is a clinical-stage drug discovery and development company focusing on novel small molecule therapies that address emerging targets in oncology using a proprietary discovery engine platform.

RVU120 (SEL120) is a highly selective first-in-class CDK8/CDK19 small molecule inhibitor. RVU120 is currently in a Phase I clinical trial in patients with acute myeloid leukemia or high-risk myelodysplastic syndrome (NCT04021368), enrolling in the US and Poland. 

In February 2021, LLS made an equity investment in Caribou Biosciences to support "A Phase 1, Multicenter, Open-Label Study of CB-010, a CRISPR-Edited Allogeneic Anti-CD19 CAR-T Cell Therapy in Patients With Relapsed/Refractory B Cell Non-Hodgkin Lymphoma."

Caribou is a leading clinical-stage biotechnology company, co-founded by CRISPR pioneer and Nobel Prize winner Jennifer Doudna, Ph.D., using next-generation CRISPR genome-editing technology to develop “off-the-shelf” (allogeneic) CAR therapies for hard-to-treat blood cancers.

CB-010, Caribou’s lead allogeneic CAR-T cell program, targets CD19 and is being evaluated in a Phase 1 clinical trial expansion cohort for second-line patients with large B cell lymphoma (LBCL). (NCT04637763). It is the first clinical-stage allogeneic CAR-T cell therapy in which PD-1 was genetically disrupted in the CAR-T genome, leading to more durable anti-tumor activity in pre-clinical studies.

The Weill Cornell Medicine (WCM) Meyer Cancer Center (MCC) has an internationally recognized, clinical/translational blood cancer research program focused at its Manhattan campus. Elsewhere in New York City, the borough of Queens has 2.3 million and the borough of Brooklyn has 2.5 million residents. Both are among the most ethnically diverse urban areas in the world, and each separately ranks just behind Los Angeles and Chicago in population. Over 50% of patients diagnosed with blood cancers in New York City live in Brooklyn or Queens, and half of those are non-white. Involvement of academic cancer centers with a hematologic malignancy clinical trials program physically located in Brooklyn or Queens has previously been limited. New York Presbyterian Hospital and WCM have now integrated with New York Presbyterian-Queens (NYP-Q) and New York Presbyterian-Brooklyn Methodist Hospital (NYP-BMH) to provide access to outstanding cancer care and research for these populations. The community outreach and engagement core of the MCC (led by Dr. Erica Phillips) partners with a robust network of affiliated ambulatory care practices in Brooklyn and Queens. The core has hosted roundtables with over 120 stakeholders (cancer advocacy groups, community physicians, social service organizations) around barriers to diagnosis and treatment in solid tumors, and we will capitalize on this program to expand to blood cancer trials. Other workshops will be targeted directly to diverse groups of patients. Additionally, WCM-MCC cross-campus Hematologic Malignancy Disease Management teams are led locally by Dr. Perry Cook (NYP-BMH) and Dr. Gina Villani (NYP-Q). Clinical trials infrastructure and staffing, a joint IRB, training and oversight are being implemented. This foundation is ideal to synergize with this proposal (BRIDGE) to accelerate access and support for clinical trial participation of blood cancer patients in Brooklyn and Queens who have been previously underserved.

We are investigating new interventions that could improve the effectiveness of CAR T-cell therapy for lymphoma. A clinical trial will test radiation immediately followed by CAR-T. Larger lymphoma tumors are less likely to respond to CAR-T and we expect that radiation could reduce the amount of tumor, leading to improvement in responses. We will also conduct a series of trials to determine the effectiveness of vaccinations before and after CAR T cell therapy, and if anti-cancer vaccines could improve outcomes.

We want to understand how leukemia inhibits blood production as this is one of the main causes of death in leukemia patients. We use new microscopy techniques developed by our group to image—for the first time—all types of blood cells and how they are eradicated by leukemia cells. Identification of the mechanisms through which leukemia inhibits blood production will be the foundation for new studies to develop drugs to maintain normal blood levels and prevent death in leukemia patients.

Coming soon.

Coming soon.

Advances in understanding and management of AML in children has been stagnant for decades. Observed improvements in survival are more directly linked to improvements in supportive care or risk identification rather than advances in therapeutics. Excitement around FDA approval of two new IDH1/2 inhibitors did not reach the pediatric oncology community given paucity or absence of such mutations in children. This also highlights the stark differences between AML in older adults and that in younger patients. Thus, “trickle down therapeutics” where therapies that are developed in older adults are used effectively in children is a flawed concept. Discoveries and therapeutic development in younger patients must be prioritized if meaningful advances are to be made in curing AML in younger patients. Given that AML in children is not a priority for the pharmaceutical companies, alternate mechanisms for advancing therapeutics in children and young adults should be implemented.