TScan Therapeutics Shares Breakthrough Data in Ongoing Cancer Trial

TScan Therapeutics Unveils Ongoing ALLOHA Phase 1 Trial Data

TScan Therapeutics, Inc. (Nasdaq: TCRX), a pioneering clinical-stage biotechnology company, has made significant strides in its ongoing ALLOHA™ Phase 1 trial. This trial aims to evaluate TSC-100 and TSC-101, innovative therapies intended for patients battling various forms of leukemia and myelodysplastic syndromes. As excitement builds leading up to the upcoming oral presentation at an esteemed gathering of hematology experts, key insights into patient outcomes unveil an optimistic narrative.

Key Findings from the ALLOHA Phase 1 Trial

Recent data indicates that the event-free survival rates show a compelling advantage for patients receiving the treatment arm, showcasing a hazard ratio of 0.30 (p=0.04). This suggests a chances of maintaining remission and reduced overall relapse rates among those receiving TSC-100 and TSC-101.

Safety and Tolerability of Therapies

The ongoing trial has not reported any dose-limiting toxicities, reassuring both patients and healthcare providers regarding the safety of TSC-100 and TSC-101. Patients receiving these infusions exhibited a tolerance that extended over three different dose levels. As a result, the data presents a favorable safety profile, with adverse events being similar across the study arms.

Implications of the Study Results

According to Chief Medical Officer, Dr. Chrystal U. Louis, there exists a critical unmet medical need for therapies that address the high relapse risks post-allogeneic hematopoietic cell transplantation (HCT). The ALLOHA trial has recruited patients considered at a very high risk of relapse, and the initial findings are particularly encouraging. She emphasizes that the study data suggest TSC-100 and TSC-101 may have the potential to effectively target and eliminate residual disease in these vulnerable patient cohorts.

Future Directions for TScan Therapeutics

Building on these findings, Chief Executive Officer Gavin MacBeath, Ph.D., expresses enthusiasm about launching a pivotal trial in the second half of 2025. The recent positive engagements with the FDA have helped clarify the pathway for the future development of these therapies, which will be addressed in detail during an upcoming virtual KOL event.

Presentation Highlights and Event Details

During the oral presentation at the annual meeting, several essential facets of the trial will be highlighted:

• The lower rates of relapse among treatment-arm patients, where only 8% relapsed compared to 33% in the control group.
• Detection of TSC-100 and TSC-101 TCR-T cells at all time points among treated patients indicates a direct correlation with dosage levels.
• The remarkable persistence of TCR-T cells suggests ongoing therapeutic effects in patients who have remained on study for extended periods.

Virtual Key Opinion Leader Event

In line with its commitment to transparency and engagement, TScan will hold a virtual KOL event featuring the distinguished Dr. Ran Reshef. This session will delve deeper into the data unveiled at the American Society of Hematology (ASH) meeting. Participants will receive insight regarding the trial's findings, potential FDA pathways, and updates regarding TScan's solid tumor trial, PLEXI-T™.

About TScan Therapeutics

TScan Therapeutics specializes in developing T cell receptor (TCR)-engineered T cell therapies, aimed at treating a variety of cancers. TSC-100 and TSC-101 are central to the ALLOHA Phase 1 heme trial focusing on hematologic malignancies. In parallel, the company is leveraging its ImmunoBank to expand TCR-T therapies across different cancer types through its PLEXI-T Phase 1 solid tumor trial.

Frequently Asked Questions

What are TSC-100 and TSC-101?

TSC-100 and TSC-101 are T cell receptor-engineered therapies designed to target residual disease in leukemia and myelodysplastic syndromes, particularly post-transplant.

What were the key outcomes of the ALLOHA Phase 1 trial?

The trial indicated a significantly improved event-free survival rate for patients receiving TSC-100 and TSC-101, with a lower incidence of relapse compared to control patients.

What is the next step for TScan?

TScan plans to initiate a pivotal trial for TSC-100 and TSC-101 in the latter half of 2025, informed by recent positive interactions with the FDA.

Will there be a public presentation of the trial's findings?

Yes, the results will be presented during an oral session at the annual ASH meeting, providing vital insights into the ongoing research.

How can I participate in the upcoming KOL event?

Details to attend the KOL event featuring Dr. Ran Reshef will be made available through the company's communications and website prior to the event date.

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