TScan Therapeutics Updates TSC-101 Trial Results
TScan Therapeutics announced updated results from the ongoing ALLOHA Phase 1 trial of TSC-101 in patients with heme malignancies undergoing allogeneic hematopoietic cell transplantation, HCT. The data is being featured in a poster presentation at the 67th American Society of Hematology, ASH, Annual Meeting and Exposition. Key Presentation Highlights: Relapse-free survival and overall survival were improved in the treatment arm relative to the control arm; All 3 TSC-101-treated patients that reached two years of follow-up remained relapse-free as of the data cutoff, compared to 1 of 4 patients in the control arm, consistent with effective elimination of residual cancer cells post-HCT and durable remission with TSC-101 infusion; TSC-101 infusions were well-tolerated at all dose levels, with no dose-limiting toxicities. Observed adverse events were similar across the treatment and control arms and were generally consistent with post-HCT adverse events; Mixed chimerism or relapses following TSC-101 infusions were found to be significantly associated with greater ex vivo expansion of TCR-T cells during the manufacturing process
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GT Biopharma Advances GTB-3650 Clinical Trial to Cohort 4 with 10μg/kg/day Dosing
- Clinical Advancement: GT Biopharma has advanced its GTB-3650 clinical trial to Cohort 4, where patients are receiving a dosing of 10μg/kg/day, indicating potential efficacy against resistant blood cancers, with further results expected in Q1 2026.
- Safety Confirmation: Six patients across Cohorts 1, 2, and 3 have successfully completed treatment with GTB-3650, establishing the therapy's safety profile at escalating doses without any dose-limiting toxicities, thereby enhancing confidence in the clinical trial.
- Dose Escalation Plan: The trial is designed to include seven cohorts, with plans to enroll two patients per cohort, escalating doses from 1.25μg/kg/day to potentially 100μg/kg/day, demonstrating the company's ongoing commitment to efficacy and patient care.
- Therapeutic Prospects: GT Biopharma is also advancing GTB-5550, with regulatory submission for human trials expected in late December 2025 or January 2026, further expanding its market opportunities in cancer treatment.

GT Biopharma Advances GTB-3650 Clinical Trial to Cohort 4 with 10μg/kg/day Dosing
- Clinical Trial Progress: GT Biopharma has advanced its GTB-3650 clinical trial to Cohort 4, where patients are receiving a dosing of 10μg/kg/day, indicating enhanced safety and potential efficacy in combating resistant blood cancers.
- Treatment Protocol Optimization: The therapy follows a continuous infusion schedule structured as two-week treatment periods followed by two-week rest intervals, which is expected to improve patient adherence and treatment outcomes over a four-month duration.
- Market Potential: Targeting CD33-positive acute myeloid leukemia and high-risk myelodysplastic syndrome, GTB-3650 represents a significant complement to traditional therapies, potentially unlocking substantial market opportunities for the company.
- Future Outlook: The company plans to share its next trial update in Q1 2026, and as dosing escalates, GTB-3650 is expected to approach higher efficacy ranges, further advancing its clinical development trajectory.






