A Study to Investigate Long-term Safety and Tolerability of Frexalimab in Participants With Multiple Sclerosis
A Phase 3 Extension Study to Investigate Long-term Safety and Tolerability of Frexalimab in Participants With Multiple Sclerosis.
Study LTS18002 is a global, multicenter, open-label (OL), Phase 3, long-term safety and efficacy extension study.
The purpose of this study is to provide continued access to frexalimab for participants with MS, and to evaluate the long-term safety and efficacy profile of frexalimab. This study will monitor delayed AEs, assess the durability of safety findings and characterize any emerging safety signals that may develop over an extended follow up period.
Study details include:
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The study duration will be up to 4 years.
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The OL treatment duration will be up to 96 weeks (corresponding to approximately 2 years) per participant.
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There is an additional 24 weeks of safety follow up from the last dose of OL frexalimab for all participants (safety follow-up period/EOS: 4, 12 and 24 weeks after last investigational medicinal product(IMP) or OL frexalimab administration).
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The number of visits over the 2-year duration will be dependent on subgroup assignment which is based on parent study from which the participant has entered the LTS18002 :
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ACT16877, EFC17504, EFC18098, and ASY22814 participants
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Will have on-site visits every 12 weeks (9 visits)
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Additionally, there will be 16 on-site visits for OL frexalimab administration (Week 4, 8, 16, 20, 28, 32, 40, 44, 52, 56, 64, 68, 76, 80, 88, and 92) for all participants EXCEPT those entering from EFC18098 (frexalimab open label administration is conducted at home via SC large volume (OBDS VT) device)
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There will be 3 follow up visits beginning 4 weeks after the last administration of OL frexalimab
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Home administration is allowed for participants from ACT16877, based on Investigator judgement, participant/caregiver training and local availability. Home nurse services are mandatory for at-home administration.
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Home nurse services for at home administration may be considered for EFC17504 participants after Week 24 administration of OL frexalimab, based on availability. Participants that have initiated OL frexalimab via home administration during the parent study may continue to receive it in this manner.
- NOTE: For participants from EFC17504, all on-site visits including monthly IMP administrations will include safety labs (biochemistry, hematology liver chemistry, and immunoglobulins) and physical exams
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EFC17919A/B participants
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Will have on site visits every 12 weeks (9 visits)
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Will have a total of 16 visits for OL frexalimab administration (Week 4, 8, 16, 20, 28, 32, 40, 44, 52, 56, 64, 68, 76, 80, 88, and 92)
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Additionally, there will be up to 3 visits for administration of DB treatment (until results become available and randomization assignment availability).
- Home nurse services for at home administration may be considered for EFC17919A/B participants after Week 24 administration of OL frexalimab, based on availability.
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NOTE: all on-site visits including monthly IMP administrations will include safety labs (biochemistry, hematology liver chemistry, and immunoglobulins) and physical exams.
Aperçu de l'étude
Statut
Statut
Les conditions
Les conditions
Intervention / Traitement
Intervention / Traitement
Type d'étude
Type d'étude
Inscription (Estimé)
Inscription
Phase
Phase
- Phase 3
Contacts et emplacements
Coordonnées de l'étude
Coordonnées de l'étude
- Nom: Trial Transparency email recommended (Toll free for US & Canada)
- Numéro de téléphone: option 6 800-633-1610
- E-mail: Contact-US@sanofi.com
Critères de participation
Critère d'éligibilité
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- Participants with relapsing multiple sclerosis(RMS) or non-relapsing secondary progressive multiple sclerosis(nrSPMS) who completed, on IMP, the Phase 2 ACT16877 study, or one of the four Phase 3 frexalimab studies in MS indication (EFC17919A and EFC17919B, EFC17504, EFC18098), or planned Phase 2 biomarker ASY22814.
Exclusion Criteria:
- If IMP discontinuation criteria are met as per guidance
- The participant is at risk for or has a persistent chronic, active (including fever ≥38°C and clinically unstable), recurring systemic infection or opportunistic infections (eg, PML See Appendix in protocol) as judged by the Investigator.
- Notably low immunoglobulin G(IgG) levels, defined as a level that is 20% below the LLN, and/or notably low IgM level, defined as a level 10% below the LLN.
- Participants who developed clinically relevant cardiovascular, hepatic, endocrine, neuropsychiatric or other major systemic disease making implementation of the protocol or interpretation of the study results difficult or that would put the participant at risk by participating in the extension study, as judged by the Investigator.
- Clinical evidence, suspicion or significant risk for thromboembolic events, as well as myocardial infarction, stroke, and/or antiphospholipid syndrome and any participants requiring antithrombotic treatment.
- Continued need for/chronic use of a prohibited concomitant medication.
- Suicidal risk as per C-SSRS: if a participant scores "yes" on items 4 or 5 of the Suicidal Ideation Section, or "yes" on any item of the Suicidal Behavior Section.
The above information is not intended to contain all considerations relevant to a participant's potential participation in a clinical trial.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Non randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Aucun (étiquette ouverte)
Nombre de bras
Armes et Interventions
Groupe de participants / BrasGroupe de participants / Bras |
Intervention / TraitementIntervention / Traitement |
|---|---|
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Expérimental: Frexalimab SC (OL)
Participants will be administered frexalimab subcutaneous |
Pharmaceutical form:Solution for injection-Route of administration:SC
Autres noms:
Pharmaceutical form:Solution for infusion-Route of administration:IV
Autres noms:
Route of administration:IV |
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Expérimental: Frexalimab IV (OL)
Participants will be administered frexalimab intravenously |
Pharmaceutical form:Solution for injection-Route of administration:SC
Autres noms:
Pharmaceutical form:Solution for infusion-Route of administration:IV
Autres noms:
Route of administration:IV |
|
Expérimental: Frexalimab (DB)
For EFC17919A/B parent study participants: at Opt-in visit participants will continue to be administered f rexalimab through unblinding visit. Participants will receive placebo tablet once daily until the unblinding visit. |
Pharmaceutical form:Solution for injection-Route of administration:SC
Autres noms:
Pharmaceutical form:Solution for infusion-Route of administration:IV
Autres noms:
Route of administration:IV Pharmaceutical form:Tablet-Route of administration:Oral Route of administration:oral Route of administration:oral |
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Comparateur actif: Teriflunomide (DB)
For EFC17919A/B parent study participants: at Opt-in visit participants will continue to receive teriflunomide tablet. The placebo will be administered to participants at the same infusion rate and duration as for frexalimab from the opt-in visit until availability of results and unblinding. |
Route of administration:IV Route of administration:oral Route of administration:oral Pharmaceutical form:Solution for infusion-Route of administration:IV Pharmaceutical form:Tablet-Route of administration:Oral |
Que mesure l'étude ?
Principaux critères de jugement
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
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Number of participants with Adverse Events(AEs)
Délai: up to to approximately 2.5 years since last participant in
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Number of participants with Adverse Events(AEs), serious adverse event(SAEs), AEs leading to permanent study intervention discontinuation, adverse event of special interest(AESIs), local tolerability, clinically significant abnormalities in laboratory tests, Columbia-Suicide Severity Rating Scale(C-SSRS) |
up to to approximately 2.5 years since last participant in
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Mesures de résultats secondaires
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Participants from EFC17919A, EFC17919B, and EFC17504 studies only: time to onset of 6-month composite confirmed disability worsening(cCDW) for RMS or composite confirmed disability progression(cCDP) for nrSPMS
Délai: up to to approximately 2.5 years since last participant in
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up to to approximately 2.5 years since last participant in
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Time to onset of individual components of the composite, confirmed over 3 months or 6 months EDSS for all prior study participants 9-HPT, T25FW test (participants rolling over from EFC17504, EFC17919A, and EFC17919B)
Délai: up to to approximately 2.5 years since last participant in
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up to to approximately 2.5 years since last participant in
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Progression independent of relapse activity defined as the time to onset of 6-month cCDW
Délai: up to to approximately 2.5 years since last participant in
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Progression independent of relapse activity defined as the time to onset of 6-month cCDW, defined by either no prior relapse or an onset more than 90 days after the start date of the last Investigator reported relapse (participants rolling over from EFC17919A and EFC17919B) |
up to to approximately 2.5 years since last participant in
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Number of new and/or enlarging T2-hyperintense lesions per year as detected by MRI
Délai: up to to approximately 2.5 years since last participant in
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up to to approximately 2.5 years since last participant in
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Total number of new GdE T1 lesions per year as detected by MRI
Délai: up to to approximately 2.5 years since last participant in
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up to to approximately 2.5 years since last participant in
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Change from baseline at scheduled visits in total volume of T2-hyperintense lesions as detected by brain MRI
Délai: up to to approximately 2.5 years since last participant in
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up to to approximately 2.5 years since last participant in
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ARR assessed by confirmed protocol defined relapses
Délai: up to to approximately 2.5 years since last participant in
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up to to approximately 2.5 years since last participant in
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antidrug antibodys(ADAs) incidence
Délai: up to to approximately 2.5 years since last participant in
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up to to approximately 2.5 years since last participant in
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Change from baseline in serum immunoglobulin(Ig) levels
Délai: up to to approximately 2.5 years since last participant in
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up to to approximately 2.5 years since last participant in
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Collaborateurs et enquêteurs
Parrainer
Parrainer
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Estimé)
Début de l'étude
Achèvement primaire (Estimé)
Achèvement primaire
Achèvement de l'étude (Estimé)
Achèvement de l'étude
Dates d'inscription aux études
Première soumission
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Première publication
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour publiée
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
- Maladies du système nerveux
- Maladies auto-immunes
- Maladies du système immunitaire
- Maladies auto-immunes démyélinisantes, SNC
- Maladies auto-immunes du système nerveux
- Maladies démyélinisantes
- Sclérose en plaques
- Produits chimiques inorganiques
- Éléments
- Polymères
- Substances macromoléculaires
- Matériaux biomédicaux et dentaires
- Matériaux fabriqués
- Technologie, industrie et agriculture
- Polystyènes
- Plastiques
- Carbone
- Résine de cholestyramine
- Charbon de bois
- tériflunomide
Autres numéros d'identification d'étude
Autres numéros d'identification d'étude
- LTS18002
- 2026-525688-41 (Identificateur de registre: CTIS)
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Description du régime IPD
Qualified researchers may request access to patient level data and related study documents including the clinical study report, study protocol with any amendments, blank case report form, statistical analysis plan, and dataset specifications. Patient level data will be anonymized and study documents will be redacted to protect the privacy of trial participants. Further details on Sanofi's data sharing criteria, eligible studies, and process for requesting access can be found at: https://vivli.org
Informations sur les médicaments et les dispositifs, documents d'étude
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