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About
The primary aim of the study is to establish the maximum-tolerated dose (MTD) of 225Ac-MTI-201 in participants with metastatic uveal melanoma. The secondary aims are to describe the pharmacokinetics of 225Ac-MTI-201 and the toxic effects of 225Ac-MTI-201 in participants with metastatic uveal melanoma.
Full description
This study will enroll patients with metastatic uveal melanoma that have failed at least one form of therapy from a single academic medical center in the United States. All participants will be informed about the study and potential risks and required to provide written informed consent prior to undergoing study-related procedures. A continual reassessment method (CRM) design will be used for this clinical trial. The study proposes single patient cohorts with dose escalation starting at 4.7 microCi of 225Ac-MTI-201 after each cohort in the absence of safety concerns (2-fold increases for doses and lower dose increases between higher doses). Dose Limiting Toxicities will be assessed using the CTCAE version 5.0 criteria.
The participants who meet the eligibility requirements will be administered a single intravenous dose of 225Ac-MTI-201. After study treatment, the study participants will stay overnight at the study center, undergo study procedures (i.e. vital signs, physical exam, multiple blood and urine sample collections) and will be scheduled to return to the clinic at 48 hours and for additional appointments weekly clinic visits the first month and on Week 9 for health status assessments, including physical exams, complete blood chemistry, and EKG. Tumor measurements every 8 weeks in first year post-injection; extended to 12 weeks in year 2; every 16 weeks in year 3, and 24 weeks in years 4 and 5. The clinic visits will involve seeing a study doctor plus radiological tests (such as MRI and/or CT scans) to see how the metastatic uveal melanoma has responded to the study drug. The protocol and informed consent documents have been reviewed and approved by the hospital human subjects review board and the study will be performed in accordance with the Declaration of Helsinki.
Enrollment
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Inclusion criteria
Histologically confirmed metastatic uveal melanoma.
Progression after at least one prior line of therapy for metastatic uveal melanoma. Liver directed therapy (e.g., hepatic arterial embolization, isolated hepatic perfusion) will count as one line of therapy. Should any additional treatment(s) receive regulatory approval for metastatic uveal melanoma during the conduct of this trial, participants (if eligible for the newly approved treatment) would need to demonstrate disease progression on the additional treatment(s) before being eligible to participate in the current study. There is no limit to the number of previous treatments for metastatic disease.
Participants must have measurable disease per RECIST 1.1.
Adults, age 18 or over, with no upper age limit.
ECOG (Eastern Cooperative Oncology Group) performance status of 0-1 (Karnofsky ≥ 70 percent).
Acceptable organ and marrow function as defined below:
Male participants who are sexually active, and female participants of childbearing potential must agree to use 2 forms of FDA approved contraceptive methods during treatment with 225Ac-MTI-201 and up to 3 months following treatment.
Ability to understand and the willingness to sign a written informed consent document.
Exclusion criteria
Primary purpose
Allocation
Interventional model
Masking
16 participants in 12 patient groups
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Central trial contact
Mark L McLaughlin, PhD; Karen E Hayes, PhD
Data sourced from clinicaltrials.gov
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