89Zr-Bevacizumab PET/CT Imaging in NF2 Patients

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89Zr-Bevacizumab PET/CT Imaging in NF2 Patients

Study Purpose

Bevacizumab can be an effective treatment for individuals with NF2 and improve different nerve functions (like hearing, tinnitus or balance problems) and the quality of life of NF2 patients. However, bevacizumab is not effective in all patients or all tumors, at the cost of moderate toxicity and considerable financial burden. Therefore, this observational study will validate an imaging biomarker method to predict bevacizumab efficacy in order to avoid adverse effects and high costs in non-responders to bevacizumab treatment. Patients will undergo standard-of-care treatment with the sole addition of a pre-treatment 89Zr-Bevacizumab PET/CT-scan. Per standard-of-care bevacizumab therapy is administered every three weeks for six months. To monitor treatment effect, follow-up is performed at 3-month intervals.

Recruitment Criteria

Accepts Healthy Volunteers Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms	No
Study Type An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes. An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes. Searching Both is inclusive of interventional and observational studies.	Observational
Eligible Ages	18 Years and Over
Gender	All

More Inclusion & Exclusion Criteria

Inclusion Criteria:

- Patients aged 18 years or older.

- Confirmed diagnosis of NF2 by revised Manchester criteria.

- Provided written informed consent.

- Patients must have measurable disease, defined as at least one VS > 0.4 ml (on volumetric analysis) that can be accurately measured by contrast-enhanced T1-weighted cranial MRI scan.

- Eligible and planned for bevacizumab treatment.

Exclusion Criteria:

- Patients with a contra-indication for PET and MRI, such as pregnancy and metal elements.

- Patients with a known allergy to substances used in this study.

- Concurrent treatment with Everolimus

Trial Details

Trial ID: This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.	NCT05685836
Phase Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans. Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data. Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs. Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.
Lead Sponsor The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.	Leiden University Medical Center
Principal Investigator The person who is responsible for the scientific and technical direction of the entire clinical study.	Hans AJ Gelderblom, MD, PhD
Principal Investigator Affiliation	Leiden University Medical Center
Agency Class Category of organization(s) involved as sponsor (and collaborator) supporting the trial.	Other
Overall Status	Recruiting
Countries	Netherlands
Conditions The disease, disorder, syndrome, illness, or injury that is being studied.	Neurofibromatosis 2

Arms & Interventions

Arms

: Bevacizumab

After determining eligibility, all patients will undergo standard-of-care treatment with the sole addition of a pre-treatment 89Zr-Bevacizumab PET/CT-scan. Patients will first receive 5 mg 89Zr-Bevacizumab 4 days before PET/CT scan. This is followed by standard-of-care intravenous 7.5mg/kg bevacizumab (Avastin) therapy, administered every three weeks for six months

Interventions

Drug: - Bevacizumab Zirconium Zr-89

See Arm description.

Contact a Trial Team

If you are interested in learning more about this trial, find the trial site nearest to your location and contact the site coordinator via email or phone. We also strongly recommend that you consult with your healthcare provider about the trials that may interest you and refer to our terms of service below.