E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Paraneoplastic Neurological Syndromes |
Syndromes Neurologiques Paranéoplasiques |
|
E.1.1.1 | Medical condition in easily understood language |
neuron disease |
Maladie des neurones |
|
E.1.1.2 | Therapeutic area | Diseases [C] - Nervous System Diseases [C10] |
MedDRA Classification |
E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
Evaluation of the 3-Month Efficacy of Early Immunotherapy with IgIV, Cyclophosphamide and Methylprednisolone in Patients with Paraneoplastic Sensory Neuronopathy with anti-Hu antibody |
Evaluation de l’efficacité à 3 mois d’une immunothérapie précoce à base d’IgIV, Cyclophosphamide et Méthylprednisolone chez des patients atteints d’une neuronopathie sensitive paranéoplasique à anticorps anti-Hu |
|
E.2.2 | Secondary objectives of the trial |
Evaluation :
-of effectiveness at 6 months of study immunotherapy
-of the percentage of patients alive and without tumor progression at 6 months
-treatment tolerance |
Evaluation :
-de l’efficacité à 6 mois de l’immunothérapie à l’étude
-du pourcentage des patients vivants et sans progression tumorale à 6 mois
-de la tolérance du traitement
|
|
E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
-Age ≥ 18 years
-Neuropathic sensory "possible" according to the criteria of Camdessanché et al.
-Dominant ataxia table (central nervous system involvement and / or neuromuscular junction is allowed, provided it has a minor impact on the patient's disability)
-Anti-Hu antibody positive in blood and / or cerebrospinal fluid
-Outpatient (modified Rankin score 2 or 3)
-First neurological symptoms for less than 3 months
-Free, informed, written and signed consent
-Affiliation to a social security scheme or beneficiary (except AME) |
-Age ≥ 18 ans
-Neuronopathie sensitive « possible » selon les critères de Camdessanché et al.
-Tableau dominant d’ataxie sensitive (une atteinte du système nerveux central et/ou de la jonction neuromusculaire est admise, à condition qu’il ait un impact mineur sur le handicap du patient)
-Anticorps anti-Hu positifs dans le sang et/ou le liquide céphalorachidien
-Patient ambulatoire (Echelle modified Rankin Score (mRS) 2 ou 3)
-Début des symptômes neurologiques depuis moins de 3 mois
-Consentement libre, éclairé et écrit signé
-Affiliation à un régime de sécurité sociale ou bénéficiaire (sauf AME) |
|
E.4 | Principal exclusion criteria |
-Possible hypersensitivity to any of the study treatments, their metabolites, or any of the excipients
-Absolute contraindications to intravenous immunoglobulin : selective IgA deficiency, known thrombophilia
-Absolute contraindications to cyclophosphamide: vaccination against yellow fever in the 3 months preceding inclusion, acute urinary tract infection, acute spinal cord failure
-Over two courses of IVIG administered within 3 months before recruitment
-Other concomitant immunotherapy
-Other cause of immunodepression (acquired or congenital)
-Treatment with checkpoint inhibitors in progress or completed less than 3 months ago
- Women of childbearing age without effective contraception, pregnant or lactating
-Psychiatric history or general illness that may contraindicate the treatment
-Patients unable to perform the follow-up required by the study
-Patients under guardianship or curatorship
-Patient deprived of liberty by a judicial or administrative decision |
-Hypersensibilité connue à un des traitements à l’étude, à leurs métabolites, ou à l’un des excipients
-Contre-indications absolues aux IgIV : déficit sélective en IgA, thrombophilie connue
-Contre-indications absolues au cyclophosphamide : vaccination contre fièvre jaune dans les trois mois précédents l’inclusion, infection urinaire aiguë, insuffisance médullaire aigue
-Plus de deux cures d’IgIV administrés dans les 3 mois avant le recrutement
-Autre immunothérapie concomitante
-Autre cause d’immunodépression (acquise ou congénitale)
-Traitement avec inhibiteurs de checkpoint en cours ou complété moins de 3 mois auparavant
-Femme en âge de procréer sans contraception efficace, enceinte ou allaitante
-Antécédents psychiatriques ou de maladies générales pouvant contre-indiquer le traitement
-Patients ne pouvant effectuer le suivi requis par l’étude
-Patients sous tutelle ou curatelle
-Patient privé de liberté par une décision judiciaire ou administrative |
|
E.5 End points |
E.5.1 | Primary end point(s) |
Percentage of patients with clinical improvement on the ONLS (Overall Neuropathy Limitations Scale) at 3 months |
Pourcentage des patients avec amélioration clinique sur l’échelle ONLS (Overall Neuropathy Limitations Scale) à 3 mois |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
|
E.5.2 | Secondary end point(s) |
-The percentage of patients with clinical improvement on the ONLS scale at 6 months
-The percentage of patients with improvement of the ataxic component on the Score of Ataxia scale at 3 and 6 months
-The percentage of patients with improvement in neuropathic pain on the Numeric Rating Scale (NRS) at 3 and 6 months
-The percentage of patients with functional improvement on the modified Rankin Score (mRS) at 3 and 6 months
-The percentage of patients with functional improvement on the Barthel Index (BI) at 3 and 6 months
-The percentage of patients alive and without tumor progression at 6 months
-The tolerance to treatment will be evaluated by the frequency and severity of expected and unexpected adverse effects recorded during treatment |
-Le pourcentage de patients avec amélioration clinique sur l’échelle ONLS à 6 mois
-Le pourcentage de patients avec amélioration de la composante ataxique sur l’échelle Score of Ataxia à 3 et 6 mois
-Le pourcentage de patients avec amélioration de la douleur neuropathique sur l’échelle Numeric Rating Scale (NRS) à 3 et 6 mois
-Le pourcentage de patients avec amélioration fonctionnelle sur le modified Rankin Score (mRS) à 3 et 6 mois
-Le pourcentage de patients avec amélioration fonctionnelle sur le Barthel Index (BI) à 3 et 6 mois
-Le pourcentage de patients vivants et sans progression tumorale à 6 mois
-La tolérance au traitement sera évaluée par la fréquence et la sévérité des effets indésirables attendus et inattendus enregistrés pendant le traitement |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
3 and 6 months |
3 et 6 mois |
|
E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | Yes |
E.8.1.7.1 | Other trial design description |
Etude prospective de phase II, ouverte, non comparative, multicentrique |
Prospective phase II study, open, non-comparative, multicenter |
|
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 7 |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
|
LVLS |
Dernière visite du dernier patient |
|
E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 3 |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |