Skip to main content
Category

Aleta Biotherapeutics

Aleta Biotherapeutics Receives Innovation Passport Designation for Biologic CAR T-Cell Therapy Engager ALETA-001

By Aleta Biotherapeutics, Press Release, Private Companies
Press Release.

 

Designation Intends to Accelerate Regulatory Review Process and Facilitate U.K. Patient Access to Medicines for Seriously Debilitating and Life-Threatening Diseases

ALETA-001 Was Developed to Address the Urgent Unmet Need of Patient Relapse After CD19-Targeted CAR T-Cell Cancer Treatment

NATICK, Mass., November 7, 2022 – Aleta Biotherapeutics (Aleta), a privately held immuno-oncology company with novel biologic CAR T engagers that work in synergy with cell therapies to improve outcomes for patients, announces that the U.K. Medicines and Healthcare products Regulatory Agency (MHRA) has granted an Innovation Passport under the Innovative Licensing and Access Pathway (ILAP) for Chimeric Antigen Receptor (CAR) T-cell therapy Engager candidate ALETA-001 for the treatment of patients suffering from the B-cell malignancies, non-Hodgkin lymphoma a (NHL) and Acute Lymphoblastic Leukemia (ALL), and who have failed to respond or have relapsed post-CD19 CAR T-cell therapy. ALETA-001 is expected to enter clinical development in 2023 with Cancer Research UK’s Centre for Drug Development sponsoring and conducting a Phase 1/2a clinical trial.

The Innovation Passport is the first step in the ILAP process, triggering the MHRA and its partner agencies, including The All Wales Therapeutics and Toxicology Centre (AWTTC), National Institute for Health and Care Excellence (NICE), and the Scottish Medicines Consortium (SMC), to chart a roadmap for regulatory and development milestones to enable faster patient access to medicines in the U.K. To receive an Innovation Passport, a medicine must address conditions that are life-threatening or seriously debilitating, and there must be an existing significant patient or public health need.

“This designation for our biologic CAR T-cell therapy engager ALETA-001 marks an important step in addressing the high unmet need for patients who relapse or progress following CD19-targeted CAR T-cell therapy for blood cancers, such as lymphoma and leukemia,”

stated Paul Rennert, Co-Founder, Acting Chief Executive Officer and Chief Scientific Officer, Aleta Biotherapeutics.

“In collaboration with our partner Cancer Research UK, we are excited to move ALETA-001 forward to potentially transform the lives of patients living with blood cancers,”

continued Rennert.

Dr. Nigel Blackburn, Cancer Research UK’s Director of Drug Development, stated,

“We are so pleased to receive this designation for ALETA-001, which reboots CAR T-cell therapy by bridging a patient’s circulating CD19-targeted CAR T-cells to cancer cells expressing CD20.

While CAR T-cell therapy has revolutionized hard-to-treat blood cancer outcomes, a majority of patients will see their cancer return, and this is where the critical potential of ALETA-001 exists. ALETA-001 is a promising approach to address this significant treatment gap for patients who currently lack effective options.”

In June 2021, Aleta Biotherapeutics and Cancer Research UK announced a collaboration in which Cancer Research UK’s Centre for Drug Development will fund, sponsor, and conduct the first-in-human Phase 1/2a clinical trial of ALETA-001, which will be led by Dr. Sridhar Chaganti’s Cellular and CAR T-cell therapies team at the Queen Elizabeth Hospital and University Hospitals Birmingham NHS Foundation Trust, Birmingham UK. In the Cancer Research UK-sponsored trial, patients with B-cell lymphoma/leukemia who have received CD19-targeted CAR-T cell therapy but did not achieve a complete response or who relapsed from a complete response will be enrolled. Aleta retains all rights to further develop and commercialize ALETA-001.

 

About Biologic CAR T-Cell Therapy Engager (CTE) ALETA-001

ALETA-001 is an off-the-shelf preclinical biologic program developed to treat and prevent cell therapy relapse of existing CD19-targeted CAR T-cell therapies, termed CAR19 T cells. ALETA-001 bridges CAR19 T cells to a second antigen, CD20. ALETA-001 binds to B-cell lymphomas and leukemias expressing CD20 antigens and restores tumor expression to CD19. ‘Recoating’ CD20-expressing cancer cells to express CD19 addresses the critical issues of tumor CD19 antigen loss and density and holds the potential to restore potent killing in patients who are no longer responding to previously administered, circulating CD19-targeted CAR T-cell therapy due to reduction or loss of tumor CD19 expression. In June 2021, Aleta and Cancer Research UK announced a collaboration in which Cancer Research UK will fund, sponsor, and conduct the Phase 1/2a clinical trial of ALETA-001.

 

About Aleta Biotherapeutics

Aleta Biotherapeutics is an immune-oncology company with a portfolio and platform of novel off-the-shelf biologic CAR T engagers (CTEs) that work in synergy with cell therapies to improve outcomes for patients. Aleta’s CTEs bridge CAR T-cell therapies to target multiple tumor antigens, binding to existing tumor antigens and changing the tumor antigen expression to match the CAR T receptor. Aleta’s CTEs address the critical issues of tumor antigen loss, density and heterogeneity, which optimizes the potential for potent killing by separately administered cell therapies, including existing CAR19 T-cell therapies.

ALETA-001 and ALETA-005 are designed to treat and prevent cell therapy relapse of circulating CAR19 and B-cell maturation antigen (BCMA) T-cell therapies by restoring tumor antigen expression to match CAR T receptors. ALETA-004 is Aleta’s first CTE program to bind CTEs to multiple tumor antigens and fundamentally change tumor cell antigen expression, thereby bridging the tumors to match a specific CAR T-cell therapy. In the case of ALETA-004, Aleta’s CTE changes the expression of Acute Myeloid Leukemia (AML), a non-B cell tumor, to express CD19, which allows the potential for CAR CD19 cell therapies to treat AML. http://www.aletabio.com

 

About Cancer Research UK’s Centre for Drug Development

Cancer Research UK has an impressive record of developing novel treatments for cancer. The Cancer Research UK Centre for Drug Development has been pioneering the development of new cancer treatments for 25 years, taking over 140 potential new anti-cancer agents into clinical trials in patients. It currently has a portfolio of 21 new anti-cancer agents in preclinical development, Phase I or early Phase II clinical trials. Six of these new agents have made it to market including temozolomide for brain cancer, abiraterone for prostate cancer and rucaparib for ovarian cancer. Two other drugs are in late development Phase III trials. www.cruk.org.uk/cdd

Contacts:

Media:
Linda Phelan Dyson, MPH
973-986-5973
lpdyson@verizon.net

Karen LaRochelle, MBA
Chief Business Officer
Aleta Biotherapeutics
klarochelle@aletabio.com

Aleta Biotherapeutics and Cancer Research UK collaborate to advance blood cancer therapy into the clinic

By Aleta Biotherapeutics, Press Release, Private Companies
Press Release.

 

NATICK, Mass., June 23, 2021 – Aleta Biotherapeutics (‘Aleta’) and Cancer Research UK today announced a collaboration to advance the early phase clinical development of Aleta’s CAR-T cell engager candidate, ALETA-001.

Aleta is a privately held immuno-oncology company focused on transforming cellular therapeutics to allow a broad spectrum of cancer indications to be targeted, and Cancer Research UK is the world’s leading cancer charity dedicated to saving lives.

Under the terms of the clinical development partnership, Cancer Research UK’s Centre for Drug Development will fund, sponsor and conduct the first-in-human Phase 1/2a clinical trial of ALETA-001, which will be led by Dr Amit Patel’s Cellular and CAR-T therapies team at The Christie NHS Foundation Trust in Manchester, UK.

ALETA-001 has been developed to benefit people with B-cell lymphoma and leukemia whose disease has progressed after receiving CD19 CAR-T cell therapy, and it is hoped that ALETA-001 will offer a new therapy for these patients who have limited treatment options.

CAR-T cell therapy works by targeting the T cell response against cancer through the engineering of T cells to recognize CD19 proteins on the surface of lymphoma and leukemia cells*. CAR-T cell therapy is showing promising results in treating people with blood cancers who are no longer responding to current lines of treatment.

However, over half of the patients treated with CD19 CAR-T cell therapy relapse, mostly due to reduction or loss of CD19 expression. Through binding CD20 present on the surface of cancer cells, ALETA-001 reactivates the CD19 CAR-T cells by effectively ‘recoating’ the cancer cell with the target CD19 proteins** and restoring the CAR-T cells ability to recognise and engage the cancer cell.

In the Cancer Research UK-sponsored Phase 1/2a trial, patients with B-cell lymphoma/leukemia who have received CD19 CAR-T cell therapy but did not achieve a complete response or who relapsed from a complete response will be enrolled. After the recommended Phase 2 dose of ALETA-001 has been determined, Aleta will initiate a multi-center, single arm, pivotal Phase 2 trial in the United States focused on diffuse large B-cell lymphoma (DLBCL) patients. This clinical trial will be designed to support potential accelerated approval of ALETA-001.

Aleta retain the rights to further develop and commercialize ALETA-001 and will receive a licence to the results of the clinical trial from Cancer Research UK in return for undisclosed success-based milestone and royalty payments.

Paul Rennert, President, Co-Founder and Chief Scientific Officer, Aleta Biotherapeutics, said:

“We are deeply honored to be partnering with Cancer Research UK to rapidly advance our lead drug candidate, ALETA-001, into the clinic. There is an urgent need to develop new therapies that can help people with B-cell cancers, such as lymphoma and leukemia, whose cancer has progressed after treatment with CD19 CAR-T cell therapy. Our collaboration with Cancer Research UK is a strong endorsement of the potential of our scientific platform to address the critical issues of CAR-T cell persistence, tumour antigen loss leading to patient relapse, and tumour antigen heterogeneity. We look forward to working with Cancer Research UK’s exceptional network of experienced clinical trial investigators and researchers to conduct the trial.”

Nigel Blackburn, Cancer Research UK’s Director of Drug Development, said:

“CAR-T cell therapy has been transformative in treating patients with hard-to-treat blood cancers, but many will see their cancer return and treatment options begin to run out. ALETA-001 uses a simple yet elegant method to redirect a patient’s circulating CD19 CAR-T cells against cancer cells expressing CD20, and we hope this could be a new treatment avenue for blood cancer.  This is a landmark collaboration for Cancer Research UK as it’s the first-in-human trial for a new drug that reboots CAR-T cell therapy, and we look forward to progress its early clinical development with Aleta.”

Notes to editor

* CAR T cell therapy consists of T cells that have been taken from a patient and are reprogrammed in the lab to recognize cancer cells so they can target and kill them more effectively. T cells are taken from a patient and are engineered in the lab to carry a specific CD19 receptor on their surface, which will allow them to target and kill the cancer cells through binding the CD19 antigen present on B cell leukemia and lymphoma cells. The CAR-T cells are then given back to the patient to mount an immune response directed at cancer cells. CAR-T therapy is thus a patient specific personalized anti-cancer treatment.

** In order to replace and increase CD19 antigen expression on the cancer cell surface, ALETA-001 binds to CD20 on the tumour cell leading to the presentation of the CD19 extracellular domain which is recognised and engaged by circulating CD19 CAR-T cells leading to cancer cell killing. CD20 is another type of receptor found expressed on cancer cells, but it appears to be more stable than CD19 and its expression is rarely lost.

About Aleta Biotherapeutics

Aleta Biotherapeutics is an immuno-oncology company focused on transforming cellular therapeutics to allow a broad spectrum of cancer indications to be targeted, including currently intractable solid tumors. The company was founded by Paul Rennert and Roy Lobb, who bring extensive scientific and leadership experience in immunology, oncology, and drug development to this new enterprise. Aleta has created a unique portfolio of multi-antigen targeting solutions for cell therapy, designed to address the critical issues of CAR-T persistence, tumor antigen loss leading to patient relapse, and tumor antigen heterogeneity. http://www.aletabio.com/

About Cancer Research UK’s Centre for Drug Development

Cancer Research UK has an impressive record of developing novel treatments for cancer. The Cancer Research UK Centre for Drug Development has been pioneering the development of new cancer treatments for 25 years, taking over 140 potential new anti-cancer agents into clinical trials in patients. It currently has a portfolio of 21 new anti-cancer agents in preclinical development, Phase I or early Phase II clinical trials. Six of these new agents have made it to market including temozolomide for brain cancer, abiraterone for prostate cancer and rucaparib for ovarian cancer. Two other drugs are in late development Phase III trials. www.cruk.org.uk/cdd

Media Contact:
Nick Chang
MacDougall
781-235-3060
nchang@macbiocom.com