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Spots Global Cancer Trial Database for Non-invasive Imaging of Cetuximab-Zr. 89 Uptake Wit PET: a Phase I Trial in Stage IV Cancer Patients

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Trial Identification

Brief Title: Non-invasive Imaging of Cetuximab-Zr. 89 Uptake Wit PET: a Phase I Trial in Stage IV Cancer Patients

Official Title: Non Invasive Imaging of Cetuximab-Zirconium-89 Uptake With PET: a Phase I Trial in Stage IV Cancer

Study ID: NCT00691548

Conditions

Stage IV Cancer

Interventions

Cetuximab-Zr. 89

Study Description

Brief Summary: Non invasive imaging of cetuximab uptake with PET could help to select the patients who could be treated by cetuximab, a registered but expensive monoclonal antibody against EGFR. Other monoclonal antibodies labelled with Zirconium-89 have already been used with success in patients. The combination of cetuximab labelled with Zirconium-89 is a promising new probe to determine cetuximab uptake, which has been tested in various pre-clinical animal models in Maastricht with excellent results. We propose a two step study design (see figure 1). As our ultimate goal for the future is to determine the uptake of 89Zr-cetuximab in the tumour before and during therapy, we need to investigate the toxicity of two consecutive low doses of 89Zr-cetuximab in the first place. However, as in future studies and in some patients, it is also possible that a single, larger dose of 89Zr-cetuximab is needed to obtain the best image quality, we will also investigate the toxicity of a single larger dose. Step 1: Determination of the toxicity of two low doses of 89Zr-cetuximab In three patients a standard loading dose of 400 mg/m2 of cetuximab will be administered, partly labelled with 89Zr (60 MBq, 2.5mg) on day 0. On day 14, a second injection with dose of 250 mg/m2 of cetuximab, partly labelled with 89Zr (60 MBq, 2.5mg), will be given. Step 2: Determination of the toxicity of one larger dose of 89Zr-cetuximab A standard loading dose of 400 mg/m2 of cetuximab will be administered in 3 patients, a part labelled with 89Zr (120MBq, 5mg).

Detailed Description: Toxicity will be scored twice a week from the day of first injection (day 0) up to day 14, according to the CTCAE3.0 scoring system. As after 14 days, the activity of Zr89 is low (four half-lives of Zr89 is 4 x 3.2 days = 12.8 days), no additional toxic effect is expected. Blood sampling will be done weekly (haematology, liver and kidney function). When in 0/3 patients a toxicity of grade 3 or more has occurred step 2 is considered safe. If in 1/3 patients a grade 3 has occurred, 3 more patients will be included in this step. If another grade 3 toxicity occurs in 1/3 patients, the study will be stopped. When at maximum 1/6 patients experience a grade 3 toxicity, this step will be considered safe. When step 2 is considered safe, the study is ended. After the injection, visualization of all tumour sites will be analyzed by performing a PET-CT scan on day 4, 5 and 6 post injection. An additional scan on day 3 or 7 is optional.\* At day 5 post injection a perfusion PET-CT will be performed.

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: ALL

Healthy Volunteers: No

Locations

Maastro Clinic, Maastricht, , Netherlands

Contact Details

Name: Dirk De Ruysscher, Dr.

Affiliation: Maastro Radiation Oncology

Role: PRINCIPAL_INVESTIGATOR

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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