A Phase 1 interventional study of 188Re-PTI-6D2 in Metastatic Melanoma, sponsored by Pain Therapeutics. Completed at 2 sites in Israel. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2011-07-14.
Sponsored by Pain Therapeutics · Phase 1, Interventional, and Treatment
The purpose of this first-in-man study is to evaluate the safety of 188Re-PTI-6D2 in patients with metastatic melanoma. All patients will receive a tracer dose of 188Re-PTI-6D2 in order to provide information on how the monoclonal antibody is distributed throughout the body and to assess tumor targeting. No therapeutic dose of radiation will be given in the first study.
This study will evaluate the safety and feasibility of the administration of 188Re-PTI-6D2 in patients with metastatic melanoma. Patients with confirmed Stage IIIc (unresectable) or Stage IV melanoma who meet all eligibility criteria will undergo a thorough physical examination and baseline tumor imaging (whole body 18FDG PET/CT and MRI brain) to document all sites of tumor.
Treatment will be administered on an inpatient basis. An initial cohort of 3 patients will receive a tracer dose of 188Re-PTI-6D2 without any preceding unlabeled antibody. The tracer dose will consist of 10 mCi of rhenium-labeled antibody; the amount of antibody (in mg) will depend on specific activity and is estimated to range from 2 to 10 mg. Additional cohorts of three patients each will receive 10 mg, 20 mg, and 50 mg of unlabeled PTI-6D2 immediately preceding administration of the tracer dose. Patients will undergo serial gamma scans and SPECT/CT imaging at specified time points. Blood samples will be obtained prior to dosing and at specified intervals for PK measurements of the mAb as well as for measurement of serum radioactivity. Urine will also be collected for all patients to measure excreted radioactivity. Patients will be closely monitored for safety throughout the duration of the study.
Patients will remain at the study center for 48 hours after infusion to allow adequate time for post-treatment safety observation, monoclonal antibody clearance and rhenium decay. Prior to the escalation of the dose of unlabeled PTI-6D2, safety data from the inpatient period and 2-week follow-up visit for the three patients at the current dose level will be reviewed. If there is no evidence of a safety risk, the dose of unlabeled PTI-6D2 will be escalated for the next cohort of patients. Dose escalation of unlabeled antibody will occur according to a specific scheme.
3,006 studies on the registry are indexed under Melanoma; 520 are open to participants now.
This study's enrollment of 12 is below the median of 38 across 2,351 interventional studies indexed under Melanoma.
Browse Melanoma studies →Pain Therapeutics is the lead sponsor of 16 studies on the registry; none are open to participants now.
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Exclusion Criteria:
monoclonal antibody
To select the amount of unlabeled PTI-6D2 to administer immediately prior to a tracer dose of 188Re-PTI-6D2 in order to achieve preferred tumor targeting
To generate pharmacokinetic (PK) and biodistribution data of 188Re-PTI-6D2 in patients with metastatic melanoma in order to estimate radiation doses absorbed to tumor and critical organs
To determine the frequency of HAMA response associated with 188Re-PTI-6D2 administration
This study is completed, as verified in Jul 2011. You cannot join it, but the record below documents what was studied.
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