TransCode Therapeutics and Quantum Leap Announce Submission of IND Amendment for Phase 2a Clinical Trial with TTX-MC138
Rhea-AI Summary
TransCode (NASDAQ: RNAZ) and Quantum Leap submitted an IND amendment to the FDA for a planned Phase 2a dose-expansion trial of TTX-MC138 in colorectal cancer (NCT05868226).
The PRE-I-SPY platform trial will enroll up to 45 ctDNA-positive patients post‑curative therapy, aims to start in H1 2026, and will be led by Dr. Paula Pohlmann.
Positive
- IND amendment submitted for Phase 2a dose-expansion
- Trial targets up to 45 ctDNA-positive colorectal cancer patients
- Planned start in H1 2026, led by MD Anderson investigator
- First PRE-I-SPY expansion into colorectal cancer, leveraging platform sites
Negative
- Submission is an IND amendment, not an FDA approval or cleared trial start
- Small planned cohort size (45) limits near-term commercial signal
- Timeline conditional on FDA review and site activation, start date not guaranteed
Key Figures
Market Reality Check
Peers on Argus
RNAZ was down 4.45% pre-news while only one tracked peer (APRE) appeared in momentum scans, down 5.82%. Other peers in Biotechnology were mixed, suggesting stock-specific factors rather than a broad sector move.
Previous Clinical trial Reports
| Date | Event | Sentiment | Move | Catalyst |
|---|---|---|---|---|
| Dec 11 | Phase 2a collaboration | Positive | +20.7% | Announced Phase 2a PRE-I-SPY colorectal cancer collaboration with Quantum Leap. |
| May 08 | Phase 1a dosing update | Positive | -1.4% | Reported Cohort 4 initial dosing with no dose-limiting toxicities in Phase 1a. |
| May 01 | Phase 1a progress | Positive | +38.7% | Highlighted continued positive safety and PK/PD data in metastatic cancer trial. |
| Mar 27 | Cohort 4 initiation | Positive | -5.8% | Announced first patient dosed in Cohort 4 with higher dosing level cleared. |
| Mar 13 | SRC cohort approval | Positive | -27.3% | Safety Review Committee approved opening Cohort 4 after favorable safety data. |
Clinical trial updates for TTX-MC138 have generally been positive, but market reactions are inconsistent, with both strong rallies and sharp selloffs on favorable safety and progress news.
Over the past year, TransCode’s key catalysts have centered on clinical progress for TTX-MC138. Multiple Phase 1 cohorts advanced with no dose‑limiting toxicities, and the Safety Review Committee repeatedly cleared higher dosing and expansion. A December 2025 update with Quantum Leap outlined the planned Phase 2a colorectal cancer trial, which reacted strongly positively. Today’s IND amendment submission for that same Phase 2a program builds directly on this progression toward MRD-directed efficacy testing.
Historical Comparison
Past clinical-trial headlines for TTX-MC138 produced an average move of about 5%, with both strong gains and notable selloffs on positive safety and dosing updates.
The clinical story shows steady advancement: SRC approval to open Cohort 4, initial Cohort 4 dosing, expanded positive Phase 1a data, and then collaboration to run a Phase 2a MRD trial in colorectal cancer, now followed by the IND amendment submission.
Market Pulse Summary
This announcement advances TransCode’s program by moving TTX-MC138 toward a Phase 2a trial in ctDNA-positive colorectal cancer within the PRE-I-SPY platform. It follows earlier Phase 1 progress and a December 2025 collaboration update with Quantum Leap. Historically, clinical milestones for this asset have produced volatile reactions in both directions, so upcoming data readouts and protocol execution will likely be key markers for how the story evolves.
Key Terms
investigational new drug (ind) application regulatory
phase 2a medical
circulating tumor dna (ctdna) medical
minimal residual disease (mrd) medical
principal investigator medical
clinicaltrials.gov technical
AI-generated analysis. Not financial advice.
As part of the PRE-I-SPY platform, the TTX-MC138 Phase 2a dose-expansion portion of the trial will enroll up to 45 patients with colorectal cancer who have completed standard curative-intent therapy and have positive markers for circulating tumor DNA (ctDNA). Recent studies have demonstrated that ctDNA is a prognostic marker of cancer recurrence and may be indicative of the presence of minimal residual disease (MRD) that could be amenable to early interventions. The Phase 2a trial is planned to begin in the first half of 2026 and will be led by Principal Investigator Dr. Paula Pohlmann of MD Anderson Cancer Center. This clinical trial aims to evaluate the biological and clinical activity of TTX-MC138 in the MRD setting, where we believe the therapeutic intervention may have the greatest opportunity to improve long-term outcomes.
"This IND submission marks a pivotal step in TransCode's clinical development program, positioning TTX-MC138 where its mechanism of action has the potential to deliver meaningful benefit to patients," said Sue Duggan, TransCode's Senior VP, Operations. "We are pleased to partner with Quantum Leap's PRE-I-SPY program to evaluate TTX-MC138 and to support the expansion of this platform into new indications such as colorectal cancer," added Duggan.
The clinical trial will be performed at several clinical sites of the PRE-I-SPY Platform Network, many of which are members of the National Cancer Center Network. Additionally, the program is focused on partnering with the Colorectal Cancer Alliance, a leading advocacy organization. Information on the PRE-I-SPY program and the Phase 2a trial can be found at clinicaltrials.gov (NCT05868226).
About TransCode Therapeutics
TransCode Therapeutics is a clinical stage company pioneering immuno-oncology and RNA therapeutic treatments for high risk and advanced cancers. The company's lead therapeutic candidate, TTX-MC138, is focused on treating metastatic tumors that overexpress microRNA-10b, a unique, well-documented biomarker of metastasis. In addition, TransCode has a portfolio of other first-in-class therapeutic candidates designed to mobilize the immune system to recognize and destroy cancer cells. For more information, visit www.transcodetherapeutics.com.
Forward-Looking Statements
This release contains "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995, including, without limitation, statements concerning the timing, conduct and results of TransCode's collaborations with Quantum Leap, TransCode's Phase 1a clinical trial, TransCode's planned Phase 2a clinical trial, and the incorporation of TTX-MC138 into the PRE-I-SPY program for a Phase 2a dose-expansion clinical trial, statements about microRNAs and their involvement in cancer, and statements concerning the therapeutic potential of TransCode's TTX-MC138 and other therapeutic candidates. Any forward-looking statements in this press release are based on management's current expectations of future events and are subject to a number of risks and uncertainties that could cause actual results to differ materially and adversely from those set forth in or implied by such forward-looking statements. These risks and uncertainties include, but are not limited to: the risks associated with drug discovery and development; the risk that the results of clinical trials will not be consistent with TransCode's preclinical studies or expectations or with results from previous clinical trials; risks associated with the conduct of clinical trials; risks associated with TransCode's financial condition and its need to obtain additional funding to support its business activities, including TransCode's ability to continue as a going concern; risks associated with the timing and outcome of TransCode's planned regulatory submissions; risks associated with obtaining, maintaining and protecting intellectual property; risks associated with TransCode's ability to enforce its patents against infringers and defend its patent portfolio against challenges from third parties; risks of competition from other companies developing products for similar uses; risks associated with TransCode's dependence on third parties; and risks associated with geopolitical events and pandemics, including the COVID-19 coronavirus and military actions. For a discussion of these and other risks and uncertainties, and other important factors, any of which could cause TransCode's actual results to differ from those contained in or implied by the forward-looking statements, see the section entitled "Risk Factors" in TransCode's Annual Report on Form 10-K for the year ended December 31, 2024, as well as discussions of potential risks, uncertainties and other important factors in any subsequent TransCode filings with the Securities and Exchange Commission. All information in this press release is as of the date of this release; TransCode undertakes no duty to update this information unless required by law.
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SOURCE TransCode Therapeutics, Inc.