Immune Response Activation for the Treatment of Unresectable Metastatic Colorectal Cancer or CEA … (NCT06130826) | Clinical Trial Compass
SuspendedPhase 1
Immune Response Activation for the Treatment of Unresectable Metastatic Colorectal Cancer or CEA Positive Metastatic Breast Cancer
Stopped: Drug Availability --Investigational agent needs to undergo further quality testing.
United States24 participantsStarted 2025-05-27
Plain-language summary
This phase I trial studies the side effects and best dose of M5A-IL2 immunocytokine (M5A-ICK) combined with stereotactic body radiation therapy (SBRT) and to see how well they work in treating patients with colorectal cancer or xarcinoembryonic antigen (CEA) positive breast cancer that cannot be removed by surgery (unresectable) or has spread from where it first started (primary site) to other places in the body (metastatic). Carcinoembryonic Antigen (CEA) is a protein that is present in most colorectal cancers and in many other cancers, such as breast cancer, as well. SBRT uses special equipment to position a patient and deliver radiation to tumors with high precision. This method may kill tumor cells with fewer doses over a shorter period and cause less damage to normal tissue. Cytokines are signaling proteins that help control inflammation in the body. They allow the immune system to mount a defense if germs or cancer or other substances that can make people sick enter the body. Interleukin-2 (IL-2) is a powerful cytokine able to regulate the immune responses that are important for anticancer immunity. Immunocytokines (also called antibody-cytokine fusion proteins) are small proteins that regulate the activity of immune cells. The M5A-IL2 immunocytokine (M5A-ICK) combines the cancer targeting features of the M5A antibody with the immune system regulation properties of the cytokine IL-2. Giving M5A-ICK in combination with standard of care (SOC) SBRT may work better in treating patients with unresectable metastatic colorectal cancer or CEA positive metastatic breast cancer.
Who can participate
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Patients should have a diagnosis of metastatic colon or rectal or breast cancer that is pathology proven
* Patients should have a CEA producing colorectal cancer or breast cancer defined as a baseline CEA or prior documented CEA level exceeding 5 ng/ml or evidence of CEA staining by Immunohistochemistry (IHC)
* Patients should 18 years of age or older
* Patients are willing and capable to consent to study and to adhere with all elements of the study
* Patients who have failed to respond to standard systemic therapy, or for whom standard or curative systemic therapy does not exist, is not tolerable or was refused
* Patients should be at least 4 weeks from last receipt of a cytotoxic or biological agent prior to start of SBRT, with the exception of mitomycin C which requires a 6-week washout
* Patients should have unresectable disease or not be a candidate for surgical resection
* Patients must have a minimum of 1 and a maximum of 5 separate metastatic lesions planned for SBRT. (Patients may have \> 5 metastatic lesions overall, however only up to 5 lesions will be treated with SBRT.) SBRT sites must be equal to or less than 5 cm in greatest dimension. SBRT treated sites must be measurable per RECIST 1.1 and can include metastatic sites in the lung, liver, or soft tissue. Sites that are intracranial or in the bone are excluded. Sites deemed not appropriate for SBRT by the treating radiation oncologist are also excluded
* Patients should be at least 4 week…
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Maximum tolerated dose (MTD) of the M5A-IL2 immunocytokine (M5A-ICK)
Timeframe: At the end of cycle 1 (each cycle is 28 days)
2
Recommended phase 2 dose
Timeframe: At the end of cycle 1 (each cycle is 28 days)