TransCode Therapeutics Advances Cancer Treatment with Successful Phase 1a Trial of TTX-MC138
TransCode Therapeutics has successfully completed Phase 1a clinical trials for TTX-MC138, an RNA-based cancer treatment targeting metastatic disease, showing promising safety results and disease stabilization in nearly half of patients, advancing to Phase 2 evaluation.

TransCode Therapeutics, Inc. (NASDAQ: RNAZ) has announced the successful completion of its Phase 1a clinical trial for TTX-MC138, an investigational inhibitor of microRNA-10b, marking a significant step forward in metastatic cancer treatment. The trial achieved its primary safety endpoint with no significant safety events or dose-limiting toxicities observed across sixteen treated patients, establishing a recommended Phase 2 dose for further development.
The clinical results demonstrated substantial promise, with 44% of patients achieving stable disease lasting four months or longer. This durability, combined with favorable pharmacodynamic data, provides strong justification for advancing TTX-MC138 into Phase 2a trials. The upcoming Phase 2a evaluation will further assess the therapeutic candidate's efficacy across multiple metastatic cancer indications, potentially opening new treatment avenues for patients with advanced disease.
TTX-MC138 represents a novel approach to cancer treatment, targeting microRNA-10b, a well-documented biomarker of metastasis. The therapeutic candidate is part of TransCode's broader portfolio of RNA-based treatments designed using the company's proprietary TTX nanoparticle platform. This technology aims to overcome the historical challenges of RNA delivery, potentially unlocking access to various genetic targets relevant to cancer treatment. The company maintains an active newsroom at https://ibn.fm/RNAZ where investors can track ongoing developments.
The successful Phase 1a trial outcomes are particularly significant given the urgent need for effective metastatic cancer treatments. Metastatic disease remains one of the most challenging aspects of oncology, often resistant to conventional therapies and responsible for the majority of cancer-related deaths. The ability to target specific biomarkers like microRNA-10b could represent a paradigm shift in how metastatic cancers are treated, moving toward more precise, mechanism-based approaches.
TransCode's progress comes at a time when RNA therapeutics are gaining increased attention in the pharmaceutical industry, following the demonstrated success of mRNA technologies in other therapeutic areas. The company's focus on intelligent RNA design and effective delivery positions it at the forefront of this emerging field. The full details of the clinical trial results are available in the official press release at https://ibn.fm/2gDqg, providing comprehensive data for the medical and investment communities.
The advancement to Phase 2 trials represents a critical milestone in the drug development pathway, bringing TTX-MC138 closer to potential regulatory approval and clinical use. As the program moves forward, the oncology community will be watching closely to see if the promising early results translate into meaningful clinical benefits for patients facing metastatic cancers, potentially offering new hope where treatment options remain limited.