Using a new MRI contrast agent to improve prostate cancer imaging

An Open-label Evaluation of a Targeted Magnetic Resonance Imaging Contrast Agent (MT218) in Prostate Cancer Patients

PHASE1; PHASE2 · Molecular Theranostics LLC · NCT06262139

This study is testing a new MRI contrast agent to see if it can better detect aggressive prostate cancer in patients who are about to have surgery.

Quick facts

PhasePHASE1; PHASE2
Study typeInterventional
Enrollment12 (estimated)
Ages18 Years to 90 Years
SexMale
SponsorMolecular Theranostics LLC (industry)
Locations1 site (Atlanta, Georgia)
Trial IDNCT06262139 on ClinicalTrials.gov

What this trial studies

This phase 1b open label, dose-escalating study evaluates the safety and efficacy of a gadolinium and peptide-based MRI contrast agent, MT218, for detecting aggressive prostate cancer in patients scheduled for radical prostatectomy. The study compares the results of MT218 with standard multiparametric MRI and PSMA PET/CT imaging, along with histopathology validation. The goal is to determine the initial effectiveness of this targeted imaging approach in identifying high-grade prostate cancer.

Who should consider this trial

Good fit: Ideal candidates are male patients over 18 years old with a confirmed Gleason score of 8-10 prostate cancer who have undergone at least one mpMRI and one biopsy.

Not a fit: Patients with active kidney or liver disease, uncontrolled diabetes or hypertension, or those with contraindications for MRI will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved imaging techniques for better detection and characterization of aggressive prostate cancer.

How similar studies have performed: Other studies have shown promise with targeted imaging agents, but this specific approach using MT218 is novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion criteria

* Male subjects aged \>18 years.
* Patients with confirmed Gleason score of 8 - 10 prostate cancer, had at least one prostate mpMRI and one prostate biopsy.
* Ability to lie still for MRI scanning.
* Patients must be able to provide written informed consent.
* Glomerular filtration rate (GFR) \> 60 mL/min within a 30 days of the research MRI.

Key exclusion criteria

* Any diagnosis of active acute, chronic, or sub-chronic kidney or liver disease.
* Documented acute prostatitis, symptomatic or severe benign prostatic hyperplasia (BPH) or urinary tract infections.
* Patients with uncontrolled diabetes or hypertension.
* Patients with active non-prostate malignancy.
* Patients with contraindications for MRI including implantable pace makers, cochlear implants.
* Patients with uni- or bilateral hip prosthesis.
* Subjects with other significant medical conditions that would create unacceptable operative risk, compromise retention on study or compromise study related assessments.
* Major surgery within 4 weeks prior to entry on this study or patients who have not recovered from side effects of such therapy.
* Prostate biopsy within 4 weeks prior to entry on this study in which inflammation might affect MRI result.
* Subjects who received or will receive any other MRI contrast agent within 48 hours prior to MT218 injection or up to 24 hours after MT218 injection.
* Is determined by the investigator that the patient is clinically unsuitable for the study.
* Is incapable of understanding the language in which the information for the patient is given.
* Participation in a concurrent clinical trial or in another trial within the past 30 days.

Where this trial is running

Atlanta, Georgia

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: MRI Scan, MT218, target GBCA, peptide, MRI contrast agent, prostate cancer

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.