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MRNA cancer shot shows promise in early trial

NCT ID NCT07587879

Disease control Sponsor: IntraAb, Inc. Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This early-phase trial tests a new mRNA-based immunotherapy called PMC2129G12 in 60 adults with advanced solid tumors that have not responded to standard treatments. The therapy is injected directly into tumors to help the body's immune T cells attack cancer cells. The main goals are to check safety, find the right dose, and see early signs of effectiveness.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
mRNA-LNP immunotherapy (PMC2129G12)
What this could lead to
If successful, this could point toward a new treatment option for advanced solid tumors that are resistant to standard therapies.
What could go wrong
This is an early-phase trial with only 60 participants, so safety and effectiveness are not yet proven. There may be side effects, and the treatment may not work for all patients.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 1/2

Runs two stages together: safety and dose first, then whether the treatment works.

Participants

About 60 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Jan 2027

An estimate. Start dates often move.

Expected to finish

Jan 2031

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age \>18 years * Histologically or cytologically confirmed advanced or metastatic solid tumor refractory to standard therapy * EpCAM expression ≥2+ intensity in ≥50% of tumor cells by central IHC * At least one measurable lesion per RECIST v1.1 (≥2 cm) that is anatomically accessible for intratumoral injection * ECOG performance status 0-1 * Life expectancy ≥3 months * Adequate hematologic, hepatic, renal, and coagulation function * Willingness to use effective contraception Exclusion Criteria: * Prior EpCAM- or CD3-targeted therapy * Active autoimmune disease requiring systemic therapy * Uncontrolled infection or significant cardiovascular disease * Active or symptomatic CNS metastases requiring immediate local therapy. Patients with treated, stable CNS metastases may be eligible. * Ongoing ≥Grade 2 toxicity from prior anticancer therapy * Known hypersensitivity to study drug components * Pregnancy or breastfeeding

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Conditions

The condition(s) this trial relates to.

cancer

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Advanced solid tumor

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • IntraAb Inc.

    Richmond, California, 94806, United States

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