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Une étude visant à évaluer l'efficacité et l'innocuité du crizanlizumab (5 mg/kg) par rapport au placebo chez des patients adolescents et adultes drépanocytaires qui connaissent des crises vaso-occlusives fréquentes (SPARKLE) (SPARKLE)

14 octobre 2026 mis à jour par: Novartis Pharmaceuticals

Une étude de phase III, multicentrique, randomisée, contrôlée par placebo, en double aveugle, pour évaluer l'efficacité et l'innocuité du crizanlizumab (5 mg/kg) par rapport au placebo, avec ou sans traitement par hydroxyurée/hydroxycarbamide, chez des patients adolescents et adultes drépanocytaires atteints de vaso fréquent -Crises occlusives

A phase III, multi-center, randomized, placebo-controlled, double-blind study to assess efficacy and safety of crizanlizumab (5 mg/kg) versus placebo, with or without hydroxyurea/hydroxycarbamide therapy, in adolescent and adult Sickle Cell Disease patients with frequent vaso-occlusive crises.

Aperçu de l'étude

Statut

Recrutement

Les conditions

Description détaillée

Study CSEG101A2303 (SPARKLE) is a Phase III, multicenter, randomized, double-blind study to assess efficacy and safety of crizanlizumab 5 mg/kg versus placebo, with or without hydroxyurea/ hydroxycarbamide therapy (HU/HC), in Sickle Cell Disease patients aged 12 years and older with frequent vaso-occlusive crises (4-12 events in 12 months prior to the screening visit).

Participants will be randomized in a 2:1 ratio to the crizanlizumab 5 mg/kg or placebo treatment arm. Central randomization will be stratified by concomitant HU/HC usage (yes/no) and region (South America, North America, and sub-Saharan Africa) at baseline.

Type d'étude

Interventionnel

Inscription (Estimé)

354

Phase

  • Phase 3

Accès étendu

Disponible en dehors de l'essai clinique. Voir enregistrement d'accès étendu.

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Coordonnées de l'étude

Sauvegarde des contacts de l'étude

  • Nom: Novartis Pharmaceuticals
  • Numéro de téléphone: +41613241111

Lieux d'étude

    • Estado de Bahia
      • Salvador, Estado de Bahia, Brésil, 41253-190
        • Recrutement
        • Novartis Investigative Site
    • Maranhão
      • São Luís, Maranhão, Brésil, 65020-070
        • Recrutement
        • Novartis Investigative Site
    • São Paulo
      • Campinas, São Paulo, Brésil, 13083-970
        • Recrutement
        • Novartis Investigative Site
      • Ribeirão Preto, São Paulo, Brésil, 14048-900
        • Recrutement
        • Novartis Investigative Site
      • Sao Jose Rio Preto, São Paulo, Brésil, 15090-000
        • Recrutement
        • Novartis Investigative Site
      • São Paulo, São Paulo, Brésil, 08270-070
        • Recrutement
        • Novartis Investigative Site
      • São Paulo, São Paulo, Brésil, 01232-010
        • Recrutement
        • Novartis Investigative Site
      • Montería, Colombie, 230001
        • Recrutement
        • Novartis Investigative Site
    • Antioquia
      • Medellín, Antioquia, Colombie, 050001
        • Recrutement
        • Novartis Investigative Site
    • Valle del Cauca Department
      • Cali, Valle del Cauca Department, Colombie, 760046
        • Recrutement
        • Novartis Investigative Site
      • Cali, Valle del Cauca Department, Colombie, 760032
        • Recrutement
        • Novartis Investigative Site
      • Eldoret, Kenya, 30100
        • Recrutement
        • Novartis Investigative Site
      • Kisumu, Kenya, 40100
        • Recrutement
        • Novartis Investigative Site
      • Kisumu, Kenya, 40103
        • Recrutement
        • Novartis Investigative Site
      • Siaya, Kenya, 40600
        • Recrutement
        • Novartis Investigative Site
    • Kisumu County
      • Ahero, Kisumu County, Kenya, 40100
        • Recrutement
        • Novartis Investigative Site
      • Kampala, Ouganda, 101
        • Recrutement
        • Novartis Investigative Site
      • Masaka, Ouganda, 001
        • Recrutement
        • Novartis Investigative Site
      • Tororo, Ouganda, 10102
        • Recrutement
        • Novartis Investigative Site
    • Alabama
      • Birmingham, Alabama, États-Unis, 35233
        • Recrutement
        • University Of Alabama
        • Chercheur principal:
          • Chibuzo Churchill Ilonze
        • Contact:
          • Jeanine Dumas
          • Numéro de téléphone: +1 205 638 9285
          • E-mail: jdumas@uabmc.edu
    • California
      • Orange, California, États-Unis, 92868
        • Recrutement
        • Ctr for Inherited Blood Disorders
        • Contact:
        • Chercheur principal:
          • Vanessa Salinas
    • District of Columbia
      • Washington D.C., District of Columbia, États-Unis, 20010
        • Recrutement
        • Childrens National Hospital
        • Chercheur principal:
          • Andrew Campbell
        • Contact:
    • Florida
      • Jacksonville, Florida, États-Unis, 32209
    • Georgia
      • Augusta, Georgia, États-Unis, 30912
        • Recrutement
        • Augusta University Georgia
        • Chercheur principal:
          • Girindra Raval
        • Contact:
      • Riverdale, Georgia, États-Unis, 30274
        • Recrutement
        • WCG Sonar Clinical Research
        • Chercheur principal:
          • Anthony Onyegbula
        • Contact:
    • Illinois
      • Chicago, Illinois, États-Unis, 60612
        • Recrutement
        • Uni of Illinois Hospital and HSC
        • Contact:
        • Chercheur principal:
          • Santosh Saraf
    • Kentucky
      • Louisville, Kentucky, États-Unis, 40202
    • Maryland
      • Baltimore, Maryland, États-Unis, 21205
        • Recrutement
        • The Johns Hopkins University School of Medicine
        • Chercheur principal:
          • Lydia Pecker
        • Contact:
    • Mississippi
      • Flowood, Mississippi, États-Unis, 39232
    • New York
      • The Bronx, New York, États-Unis, 10467
        • Recrutement
        • Childrens Hospital at Montefiore
        • Chercheur principal:
          • Kaitlin Strumph
        • Contact:
    • North Carolina
      • Greenville, North Carolina, États-Unis, 27834
        • Recrutement
        • East Carolina University
        • Chercheur principal:
          • Beng Fuh
        • Contact:
      • Winston-Salem, North Carolina, États-Unis, 27157
    • Pennsylvania
      • Easton, Pennsylvania, États-Unis, 18045
      • Philadelphia, Pennsylvania, États-Unis, 19107
    • Texas
      • Houston, Texas, États-Unis, 77030
      • Houston, Texas, États-Unis, 77030
        • Recrutement
        • Texas Childrens Cancer and Hematology Center
        • Chercheur principal:
          • Venee Tubman
        • Contact:

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

12 ans à 100 ans (Enfant, Adulte, Adulte plus âgé)

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Tout

La description

Key Inclusion Criteria:

  1. Participants must be aged 12 years and older on the day of signing informed consent. Adolescents include participants aged 12 to <18 years old and adults include participants aged 18 years and older.
  2. Confirmed diagnosis of SCD by Hb electrophoresis or high-performance liquid chromatography (HPLC) (performed locally or by central laboratory if not available locally). All SCD genotypes are eligible.
  3. Experienced 4 to 12 VOCs (refer to Section 8.3.1 for study definition of VOC) that are HCP-managed (including VOCs leading to management at a health care facility or those managed via remote consultation) within the 12 months prior to the screening visit. Baseline VOCs are determined by medical history and are required to be documented at source.
  4. If the participant is on HU/HC, they must be taking it for at least 6 months and at stable dose for at least 3 months prior to the Screening visit and plan to continue taking it at the same dose and schedule until at least the participant has reached 52 weeks of the planned study treatment. Participants who have initiated HU/HC 6-12 months prior to the screening visit must have evidence of insufficient control of acute pain despite initiation. These participants must have a cumulative of 4-12 VOCs in the 12 months prior to the screening period, with at least 2 during the last 6 months while on HU/HC. If receiving erythropoietin stimulating agent, the participant must have been receiving the drug for at least 6 months prior to screening visit and plan to continue taking the drug at the same dose and schedule until the participant has reached 52 weeks of the planned study treatment.

Participants who have not been receiving HU/HC, and/or erythropoietin stimulating agent must not have received it for at least 6 months prior to screening visit.

Key Exclusion Criteria:

  1. Fewer than 4 or more than 12 VOCs that are HCP-managed (including VOCs leading to management at a health care facility or those managed via remote consultation) within the 12 months prior to screening visit as determined by medical history and documented at source.
  2. History of stem cell transplant and/or gene therapy.
  3. Received blood products within 30 days prior to Week 1 Day 1 dosing.
  4. Any documented history of a clinical stroke or intracranial hemorrhage, or an uninvestigated neurologic finding within the past 12 months before screening visit. Silent infarct only present on imaging is not excluded.
  5. Participating in a chronic transfusion program (pre-planned series of transfusions for prophylactic purposes) and/or planning to undergo an exchange transfusion during the duration of the study; episodic transfusion in response to worsened anemia or VOC is permitted.
  6. Contraindication or hypersensitivity to any drug or metabolites from similar class as study drug or to any excipients of the study drug formulation. History of severe hypersensitivity reaction to other monoclonal antibodies, which in the opinion of the investigator may pose an increased risk of serious infusion reaction.

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Traitement
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Quadruple

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: Crizanlizumab (SEG101) at 5.0 mg/kg

Participants receive Crizanlizumab (SEG101) at 5.0 mg/kg and standard of care.

Crizanlizumab is supplied in single use 10 mL glass vials at a concentration of 10 mg/mL. One vial contains 100 mg of crizanlizumab. This is a concentrate for solution for IV infusion.

Autres noms:
  • SEG101, Adakveo®, Ryverna®
Comparateur placebo: Placebo

Participants receive the placebo drug and standard of care.

Placebo is supplied in single use 10 mL glass vials at a concentration of 0 mg/mL. This is a concentrate for solution for IV infusion.

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Annualized rate of VOCs that are healthcare professional (HCP)-managed (including VOCs leading to management at a health care facility or those managed via remote consultation) in each treatment arm
Délai: 1 year

Vaso oclusive crisis (VOC) is defined as a pain crisis (acute onset of pain for which there is no other medically determined explanation other than vaso-occlusion) lasting for at least 4 hours which is treated as per local guidelines with standard of care therapy used to treat VOC. Acute chest syndrome (ACS), priapism and hepatic or splenic sequestration will be considered VOC in this study.

VOCs included are those HCP-managed in a healthcare facility and HCP-managed via remote consultation.

Annualized rate of VOC events = (Number of VOC events * 365)/(number of days in the observation period).

Observation period = time from date of randomization to minimum of (last dose date until treatment discontinuation + 27 days, date of initiation or discontinuation of HU/HC or L-Glutamine (or other therapies such as Voxelotor and erythropoietin therapies to treat SCD and/or to prevent/reduce VOCs), date of randomization + 365 days).

1 year

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
The annualized rate of all VOCs including VOCs that are HCP-managed (either at a health care facility or via remote consultation) as well as those that are self-managed without recommendations from HCP during the event in each treatment arm
Délai: 1 year

VOCs can be categorized as those HCP-managed in a healthcare facility, HCP-managed via remote consultation, or self-managed without recommendations from HCP during the event.

Annualized rate of VOC events = (Number of VOC events * 365)/(number of days in the observation period).

To capture VOC events that are self-managed, and in order to avoid VOC recall bias and to make sure the pain events are captured in real-time, a cloud-based application will be used and setup an account for each participant.

1 year
Annualized rate of VOC by subtype of management in each treatment arm over the planned 52-week period.
Délai: 1 year

Vaso oclusive crisis (VOC) is defined as a pain crisis lasting for at least 4 hours which is treated as per local guidelines with standard of care therapy. Acute chest syndrome (ACS), priapism and hepatic or splenic sequestration will be considered VOC in this study.

VOCs can be categorized as those HCP-managed in a healthcare facility, HCP-managed via remote consultation, or self-managed without recommendations from HCP during the event.

Annualized rate of VOC is the number of VOC events during a year period.

1 year
The time to first VOC that is HCP-managed (including VOCs leading to management at a health care facility or those managed via remote consultation) between treatment arms.
Délai: 1 year

VOC is defined as a pain crisis lasting for at least 4 hours which is treated as per local guidelines with standard of care therapy. ACS, priapism and hepatic or splenic sequestration will be considered VOC in this study.

VOCs included are those HCP-managed in a healthcare facility and HCP-managed via remote consultation.

Time to first occurrence of VOC that is HCP-managed (either at a health care facility or via remote consultation) is defined as the time from the date of randomization to the date of the first occurrence of the VOC.

1 year
Proportion of participants free from VOCs that are HCP-managed (including VOCs leading to management at a health care facility or those managed via remote consultation) in each treatment arm over the planned 52-week treatment period.
Délai: 1 year

To assess the number of participants free from VOCs leading to healthcare visit.

VOC is defined as a pain crisis lasting for at least 4 hours which is treated as per local guidelines with standard of care therapy. ACS, priapism and hepatic or splenic sequestration will be considered VOC in this study. A participant is free from VOC if they do not have a VOC crisis.

1 year
Duration of VOCs that are HCP-managed (including VOCs leading to management at a health care facility or those managed via remote consultation) in each treatment arm over the planned 52-week treatment period.
Délai: 1 year

VOC is defined as a pain crisis lasting for at least 4 hours which is treated as per local guidelines with standard of care therapy. ACS, priapism and hepatic or splenic sequestration will be considered VOC in this study.

Duration of HCP-managed VOC is defined as end date of the VOC - start date of the VOC + 1 day.

1 year
Number of participants with anti-SEG101 (crizanlizumab) antibodies (any time)
Délai: 2 years

Immunogenicity: measurement of anti-drug antibodies (ADA) to crizanlizumab.

2 years
Incidence and severity of Adverse Events (AEs) and Serious Adverse Events (SAEs)
Délai: 2 years

Incidence and severity of AEs and SAEs by treatment group, including changes in vital signs, electrocardiograms (ECGs), and laboratory results qualifying and reported as AEs.

2 years
Absolute change from baseline in hemoglobin
Délai: Baseline, 2 years

Assessment of safety of SEG101

Baseline, 2 years

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Réel)

24 octobre 2024

Achèvement primaire (Estimé)

2 juillet 2029

Achèvement de l'étude (Estimé)

29 juillet 2030

Dates d'inscription aux études

Première soumission

27 mai 2024

Première soumission répondant aux critères de contrôle qualité

27 mai 2024

Première publication (Réel)

3 juin 2024

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

15 octobre 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

14 octobre 2026

Dernière vérification

1 octobre 2026

Plus d'information

Termes liés à cette étude

Plan pour les données individuelles des participants (IPD)

Prévoyez-vous de partager les données individuelles des participants (DPI) ?

OUI

Description du régime IPD

Novartis is committed to sharing with qualified external researchers, access to patient-level data and supporting clinical documents from eligible studies. These requests are reviewed and approved by an independent review panel on the basis of scientific merit. All data provided is anonymized to respect the privacy of patients who have participated in the trial in line with applicable laws and regulations.

This trial data availability is according to the criteria and process described on www.clinicalstudydatarequest.com

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Oui

Étudie un produit d'appareil réglementé par la FDA américaine

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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