TransCode Therapeutics Announces Publication in Cancer Nanotechnology of Preclinical Data Supporting Therapeutic Potential of TTX-MC138 in Metastatic Breast Cancer

– Imaging study confirms the biodistribution of TTX-MC138 in models of metastatic cancer, supporting TransCode’s TTX platform for delivery of RNA targeted therapy to metastatic solid tumors –

— eIND submission for TTX-MC138 anticipated in 1Q 2022 to support Phase 0 study in metastatic solid tumors, designed to establish proof of concept for TTX delivery platform —

BOSTON–(BUSINESS WIRE)–TransCode Therapeutics, Inc. (Nasdaq: RNAZ), an emerging RNA oncology company created on the belief that cancer can be defeated through the intelligent design and effective delivery of RNA therapeutics, today announced that preclinical research supporting its lead candidate, TTX-MC138, was published in Cancer Nanotechnology. The article, entitled “Radiolabeling and PET-MRI microdosing of the experimental cancer therapeutic, MN-anti-miR10b, demonstrates delivery to metastic lesions in a murine model of metastatic breast cancer,” resulted from research conducted at the Athinoula A. Martinos Center for Biomedical Imaging in the Department of Radiology at Massachusetts General Hospital and Harvard Medical School.

This preclinical study developed a radio-labeled derivative of TTX-MC138 (referenced as MN-anti-miR10b) tagged with Cu-64, enabling highly sensitive and specific quantitative determination of its pharmacokinetics and biodistribution, as well as observation of delivery to metastases via noninvasive positron emission tomography-magnetic resonance imaging (PET-MRI). The key results of the study demonstrated that TTX-MC138, when injected intravenously, accumulated in metastatic lesions. These results suggest that TransCode’s TTX platform delivers its therapeutic candidate as intended and the company believes supports clinical evaluation of TTX-MC138. In addition, the investigation describes the development of a microdosing PET-MRI approach that could potentially be used for measurement of TTX-MC138 biodistribution in cancer patients and its delivery to clinical metastases. The capacity to carry out microdosing PET studies in patients under an exploratory investigational new drug application protocol would represent an important step on the path to clinical translation because it could facilitate and expedite approval from the U.S. Food and Drug Administration (FDA) for initial human studies.

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