Last updated on May 2020

Characterization of Anti-FGFR3 Antibodies

Brief description of study

Sensory neuronopathies affect sensory neuron in the posterior spinal ganglion. They are responsible for pain, balance disorder (ataxia) and the use of hands. They depend on multiple etiologies. In a retrospective study, the investigators showed that the anti-FGFR3 antibody is a diagnostic marker of a subset of sensory neuronopathies. The investigators believe that other antibodies can be discovered in patients who remain seronegative changing.

However, the study is retrospective and only a small number of patients could be identified. Several points therefore need to be clarified or confirmed in a second prospective study.

Detailed Study Description

In and out patients evaluated for a sensory neuropathy meeting the inclusion and non-inclusion criteria will be proposed to enter the study

At inclusion the SSN diagnostic score is calculated and a blood sample is tested for anti-FGFR3 antibody.

Follow up: Patients positive for anti-FGFR3 antibodies will be followed and evaluated clinically and electrophysiologically at 1, 6 and 12 months. A blood sample is taken at 6 and 12 months.

A subgroup of patients negative for anti-FGFR3 antibodies will be randomly selected for evaluation at 1, 6 and 12 months.

Clinical Study Identifier: NCT02539329

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CHU Clermont-Ferrand

Clermont-Ferrand, France
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Recruitment Status: Open

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