Smart drug targets two cancer weaknesses at once
NCT ID NCT07686445
First seen Jul 07, 2026 · Last updated Jul 15, 2026 · Updated 4 times
Summary
This trial tests a new drug called AN4035 in people with advanced solid tumors that have RAS mutations and high levels of the CEACAM5 protein. The drug is designed to seek out cancer cells carrying CEACAM5 and deliver a payload that blocks RAS, a key driver of cancer growth. The study aims to find safe doses and see if the drug can slow or shrink tumors, either alone or combined with another cancer drug (cetuximab).
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- AN4035 (a drug that targets CEACAM5 on cancer cells and delivers a RAS inhibitor payload)
- What this could lead to
- If successful, this could lead to a new treatment option for people with hard-to-treat cancers that have RAS mutations and high CEACAM5 levels.
- What could go wrong
- This is an early-phase trial, so the drug may not be safe or effective. Side effects could be significant, and the approach may not work for all tumor types.
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
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Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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About 228 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Sep 2026
An estimate. Start dates often move.
- Expected to finish
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Dec 2028
An estimate. End dates often move.
- Lead sponsor
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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
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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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 Hide 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: * 18 years old at the time of informed consent. Able to provide informed consent voluntarily before any trial-related activities and according to local guidelines. Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1. Have histological or cytological evidence of a diagnosis of cancer that is advanced and/or metastatic with progression after treatment with available standard therapies or refuse standard therapies that are known to provide clinical benefit. Documentation of KRAS/NRAS/HRAS mutation determined by a Sponsor-approved validated local testing of tumor tissue or cfDNA in a CLIA- or equivalently certified laboratory. Dose Escalation: from cancers enriched for CEACAM5 expression 1. Colorectal cancer (CRC) 2. Pancreatic ductal adenocarcinoma (PDAC) 3. Non-small cell lung cancer (NSCLC) Expansion Cohorts: Histologically or cytologically confirmed advanced or metastatic CRC Have failed two or more standard therapies regardless of prior use of targeted drugs such as cetuximab or bevacizumab. Participants with microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR) must have also received prior treatment with immune checkpoint inhibitors or are ineligible for these therapies. Prior treatment with a KRAS G12C inhibitor is permitted. For a participant who has received neoadjuvant or adjuvant chemotherapy and had recurrence during or within 6 months of completion of therapy, the neoadjuvant or adjuvant chemotherapy should be counted as a regimen in the advanced setting. Have consented to provide archival tumor tissue collected within 5 years or newly obtained core or excisional biopsy of a tumor lesion not previously irradiated. Have at least one measurable lesion as defined per RECIST v1.1. Lesions situated in a previously irradiated area are considered measurable if progression has been demonstrated in such lesions. Adequate hematopoietic function per local laboratory Have adequate organ functions prior to enrollment: renal function per local laboratory glucose control per local laboratory (Part 1 only) liver function per local laboratory coagulation parameters pulmonary function cardiac function Total bilirubin (TBL) ≤ 1.5 × ULN Albumin ≥ 3 g/dL PT or aPTT ≤ 1.5 × ULN, or INR \< 1.5 (unless on anticoagulants and values are within therapeutic range) Have discontinued all previous treatments for cancer with resolution of any adverse events (AEs) to ≤ Grade 1 (except for alopecia, and endocrinopathies that are managed with replacement therapy) prior to enrollment Fertile men and women of childbearing potential must agree to use an effective method of birth control from providing signed consent and for 180 days after the last trial intervention administration. Women of childbearing potential must have a negative pregnancy test ≤ 14 days prior to the first dose of the trial intervention. Exclusion Criteria: 1. Are currently enrolled in a clinical trial involving an investigational product or any other type of medical research judged not to be scientifically or medically compatible with this trial. 2. Have tumors previously tested positive for Class I BRAF mutations i.e. V600X 3. Prior treatment with a pan-RAS(ON) inhibitor and pan-RAS(ON) inhibitor-based ADC are not permitted, except for participants enrolled in the backfill cohorts of Part 1a and Part 1b. 4. Have a serious concomitant systemic disorder that, in the judgment of the Investigator, would compromise the participant's ability to adhere to the protocol, such as the following: 1. Known human immunodeficiency virus (HIV) infection per HIV 1 and/or 2 antibodies or syphilis infection per treponema pallidum particle agglutination (TPPA) and rapid plasma reagin (RPR) 2. Participants with evidence of Hepatitis B or Hepatitis C infections (positive for Hepatitis B surface antigen (HBsAg) or Hepatitis C antibody) must fulfill the following criteria in order to be eligible for the trial: Hepatitis B virus (HBV) viral load ≤ 2500 copies or ≤ 500 IU/mL before trial enrollment, and participants with active HBV need to be on anti-HBV suppression ≥ 3 months, throughout treatment and for 6 months after. Hepatitis C virus (HCV) viral load ≤ lower limits of detection, participants with curable or controllable HCV infection are eligible. Participants with detectable HCV ribonucleic acid (RNA) can remain on continuous, effective antiviral therapy during the trial 3. Active tuberculosis, fungal infection 4. Active infection requiring intravenous antibiotic therapy. Use of oral antibiotics for minor infections (e.g., uncomplicated UTI or URI) is permitted if clinically stable, at the Investigator's discretion 5. The participant has a serious pre-existing medical condition(s) that, in the judgment of the Investigator, would preclude participation in this trial, including interstitial lung disease (ILD), severe dyspnea at rest, or requiring oxygen therapy. 6. Prior or second concurrent primary malignancies that, in the judgment of the Investigator, may affect the interpretation of results. calized prostate cancer) are eligible for this trial. 7. Moderate or severe cardiovascular disease, such as the following: 1. Congestive heart failure 2. New York Heart Association Class III/IV heart disease 3. Unstable angina pectoris 4. Myocardial infarction or cardiovascular event within the last 6 months before enrollment 5. Valvulopathy that is severe, moderate, or deemed clinically significant 6. Arrhythmias that are symptomatic or require treatment, except for rate-controlled supraventricular tachycardia and atrial fibrillation receiving anticoagulation 7. A history of additional risk factors for Torsades de Pointes (e.g., heart failure, hypokalemia, family history of Long QT syndrome) 8. Require the use of concomitant medications that prolong the QT/QTc interval 8. Uncontrolled pleural effusion, pericardial effusion or ascites requiring drainage. Participants who received drainage within 3 months of first dose should be excluded. 9. Have active central nervous system (CNS) malignancy or metastasis (e.g., new and/or progressive brain metastases). Participants with treated CNS metastases are eligible for this trial if they are not requiring concurrent treatment, including but not limited to surgery, radiation, corticosteroids and/or anticonvulsants to treat CNS metastases, and without evidence of progression for at least 30 days by repeat imaging. 10. Are pregnant or planning to become pregnant during trial or within 6 months following the last dose of AN4035. Plan to be breastfeeding from the initial dose of trial intervention or within 6 months following the last dose of AN4035. 11. Have a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the trial, interfere with the participant's participation for the full duration of the trial, or is not in the best interest of the participant to participate, in the opinion of the treating Investigator. 12. Use of other herbal supplements, traditional medicines, or prescription medications that are known or suspected to interact with the investigational product or effect disease treatment/side effect management, as determined by the trial Investigator. 13. Known allergic reaction against any of the components of the trial interventions. 14. Use of drugs known to be strong inhibitors or inducers of isoenzyme cytochrome P450 3A4 (CYP3A4), or P-glycoprotein (P-gp) inhibitors, including herbal medications within 14 days (or 5 half-lives, whichever is longer) prior to the first dose of AN4035. 15. Participant is likely to not be available to complete all protocol-required trial visits or procedures, and/or to comply with all required trial procedures to the best of the participant and Investigator's knowledge.
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The study's own enquiry address
This study publishes an address for enquiries. See it below .
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The places running it
2 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
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Locations
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Linear
Perth, Australia
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Scientia Clinical Research
Sydney, Australia
Contact Email: •••••@•••••
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