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Une étude de phase 2 du CPI-0610 avec et sans ruxolitinib chez des patients atteints de myélofibrose

8 mai 2026 mis à jour par: Constellation Pharmaceuticals

Une étude de phase 1/2 sur le CPI-0610, une petite molécule inhibitrice des protéines BET : phase 1 (augmentation de la dose de CPI-0610 chez les patients atteints d'hémopathies malignes) et phase 2 (augmentation de la dose du CPI-0610 avec et sans ruxolitinib chez les patients avec myélofibrose et thrombocytopénie essentielle)

Phase 1 Partie (Complète) : Étude ouverte séquentielle d'escalade de dose de pélabrésib chez des patients atteints de leucémie aiguë, de syndrome myélodysplasique, de néoplasmes myélodysplasiques/myéloprolifératifs et de myélofibrose.

Partie de phase 2 : Étude ouverte du CPI-0610 avec et sans ruxolitinib chez des patients atteints de myélofibrose.

Le CPI-0610 est une petite molécule inhibitrice des protéines bromodomaines et extra-terminales (BET).

Aperçu de l'étude

Statut

Complété

Les conditions

Intervention / Traitement

Type d'étude

Interventionnel

Inscription (Réel)

336

Phase

  • Phase 2
  • La phase 1

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.

Lieux d'étude

  • Allemagne
    • North Rhine-Westphalia
      • Bonn, North Rhine-Westphalia, Allemagne, 53127
        • Universitatsklinikum Bonn
    • Saxony
      • Leipzig, Saxony, Allemagne, 04103
        • Universitätsklinikum Leipzig AöR
  • Belgique
      • Antwerp, Belgique, 2060
        • ZNA Stuyvenberg Antwerpen
    • Viaams Braban
      • Leuven, Viaams Braban, Belgique, 3000
        • UZ Leuven - Campus Gasthuisberg
    • West-Vlaanderen
      • Bruges, West-Vlaanderen, Belgique, 8000
        • AZ Sint-Jan Burgge-Oostende AV- Campus Sint-Jan
  • Canada
    • Alberta
      • Edmonton, Alberta, Canada, T6G 2G3
        • University of Alberta Hospital
    • British Columbia
      • Vancouver, British Columbia, Canada, V6Z 2A5
        • St. Paul's Hospital
    • Ontario
      • Hamilton, Ontario, Canada, L8V 5C2
        • Juravinski Cancer Centre
      • Toronto, Ontario, Canada, M5G 2M9
        • Princess Margaret Cancer Centre
    • Quebec
      • Montreal, Quebec, Canada, H3T 1E2
        • Jewish General Hospital
  • France
      • Paris, France, 75010
        • CHU - Hopital Saint Louis - Centre D'Investigations Clinique
    • Gard
      • Nîmes, Gard, France, 30029
        • Institut de cancérologie du Gard - Hematologie clinique
    • Haute-Garonne
      • Toulouse, Haute-Garonne, France, 31059
        • CHRU de Lille - Hopital Claude Huriez
    • Hauts-de-France
      • Lille, Hauts-de-France, France, 59037
        • CHRU de Lille - Hôpital Claude Huriez - Maladies du Sang
    • Île-de-France Region
      • Villejuif, Île-de-France Region, France, 94805
        • Institut Gustave Roussy
  • Italie
      • Florence, Italie, 50134
        • Azienda Ospedaliero-Universitaria Careggi
      • Novara, Italie, 28100
        • AOU Maggiore della Carita
    • Emilia-Romagna
      • Bologna, Emilia-Romagna, Italie, 40138
        • Institue of Hematology "L. and A. Seràgnoli"
      • Rimini, Emilia-Romagna, Italie, 47923
        • Servizio Sanitario Regionale Emilia-Romagna - Azienda Unita Sanitaria Locale (AUSL) di Rimini - Ospedale Infermi di Rimini
    • Liguria
      • Genoa, Liguria, Italie, 16132
        • AOU S.Martino, IRCCS, IST-Istituto Nazionale Ricerca Sul Can
    • Lombardy
      • Milan, Lombardy, Italie, 20122
        • Ospedale Maggiore Policlinico, Fondazione IRCCS Ca' Granda
      • Pavia, Lombardy, Italie, 27100
        • Irccs Policlinico San Matteo, Universita Degli Studi Di Pavi
      • Varese, Lombardy, Italie, 21100
        • Ospedale di Circolo, PO Varese, AO Ospedale di Circolo e Fon
  • Pays-Bas
    • Limburg
      • Maastricht, Limburg, Pays-Bas, 6229 HX
        • Maastricht University Medical Center
    • North Holland
      • Amsterdam, North Holland, Pays-Bas, 1081 HV
        • VUmcResearch B.V.
    • South Holland
      • Rotterdam, South Holland, Pays-Bas, 3015 AA
        • Erasmus Universitair Medisch Centrum Rotterdam
  • Pologne
    • Masovian Voivodeship
      • Warsaw, Masovian Voivodeship, Pologne, 02-776
        • Instytut Hematologii I Transfuzjologii W Warszawie
    • Pomeranian Voivodeship
      • Gdansk, Pomeranian Voivodeship, Pologne, 80-952
        • Uniwersyteckie Centrum Kliniczne
  • Royaume-Uni
      • Belfast, Royaume-Uni, BT9 7AB
        • Belfast City Hospital
      • Cambridge, Royaume-Uni, CB2 0QQ
        • University of Cambridge
      • Cardiff, Royaume-Uni, CF14 4XW
        • University Hospital of Wales
      • Glasgow, Royaume-Uni, G12 0YN
        • Beatson West of Scotland Cancer Centre
      • London, Royaume-Uni, NW1 2PG
        • University College London Hospital's NHS foundation Trust
      • London, Royaume-Uni, SE1 9RT
        • Guys and St Thomas' Hospital - Haematology
      • Manchester, Royaume-Uni, M20 4BX
        • The Christie Hospital
    • Oxford
      • Headington, Oxford, Royaume-Uni, OX3 7LE
        • Oxford University Hospitals
  • États-Unis
    • Arizona
      • Phoenix, Arizona, États-Unis, 85054
        • Mayo Clinic Arizona
    • California
      • Los Angeles, California, États-Unis, 90095
        • UCLA Medical Center
    • Florida
      • Jacksonville, Florida, États-Unis, 32224
        • Mayo Clinic Jacksonville
    • Illinois
      • Chicago, Illinois, États-Unis, 60611
        • Northwestern University - Lurie Comprehensive Cancer Center
    • Massachusetts
      • Boston, Massachusetts, États-Unis, 02114
        • Massachusetts General Hospital Cancer Center
    • Michigan
      • Ann Arbor, Michigan, États-Unis, 48109
        • University of Michigan Medical Center
    • Missouri
      • St Louis, Missouri, États-Unis, 63110
        • Washington University School of Medicne Neuromuscular Division Department of Neurology Research
    • New York
      • New York, New York, États-Unis, 10029
        • Icahn School of Medicine at Mount Sinai
      • New York, New York, États-Unis, 10021
        • Memorial Sloan Kettering Cancer Center
      • New York, New York, États-Unis, 10065
        • Weill Medical College and New York Presbyterian Hospital
    • Texas
      • Houston, Texas, États-Unis, 77030
        • The University of Texas MD Anderson Cancer Center
    • Wisconsin
      • Milwaukee, Wisconsin, États-Unis, 53226
        • Froedtert & Medical College of Wisconsin

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

18 ans et plus (Adulte, Adulte plus âgé)

Accepte les volontaires sains

Non

La description

Critère d'intégration:

Partie Phase 2 : Patients avec un diagnostic confirmé de MF qui répondent à tous les critères suivants :

  • ANC ≥ 1 x 10^9/L sans l'aide de facteurs de croissance des granulocytes
  • Numération blastique du sang périphérique
  • Statut de performance ECOG ≤ 2.
  • Évaluations de laboratoire hématologiques, rénales, hépatiques et de coagulation adéquates
  • Aucun traitement préalable avec un inhibiteur de BET
  • Les patients doivent donner leur consentement éclairé écrit pour participer à cette étude avant la réalisation de toute procédure liée à l'étude.

Pour les bras 1 et 2, les critères suivants doivent être pris en compte :

  • Patients avec un diagnostic confirmé de MF qui répondent à tous les critères suivants
  • Catégorie de risque DIPSS (Dynamic International Prognostic Scoring System) intermédiaire-2 ou supérieure
  • Volume de la rate ≥ 450 cm ^ 3 par IRM ou CT pour les cohortes 1B et 2B OU dépendant de la transfusion de GR (défini comme une moyenne de ≥ 2 unités de transfusions de GR par mois (total de plus de 6 transfusions de GR) au cours des 12 semaines précédant l'inscription pour les cohortes 1A et 2A)
  • Au moins 2 symptômes mesurables (score ≥ 1) à l'aide du formulaire d'évaluation des symptômes de la myélofibrose version 4.0 (MFSAF v4.0)
  • Numération plaquettaire ≥ 75 x 10 ^ 9 / L sans l'aide de facteurs thrombopoïétiques ou de transfusions pendant au moins 14 jours
  • Bras (Bras 1) : déjà traité avec un inhibiteur de JAK et être intolérant, résistant, réfractaire ou ayant perdu la réponse à l'inhibiteur de JAK ; n'ont pas reçu l'inhibiteur de JAK dans les 2 semaines précédant le début du médicament à l'étude, ou ne sont pas éligibles pour être traités avec un inhibiteur de JAK
  • Bras combiné (Bras 2) : Doit avoir reçu du ruxolitinib en monothérapie et recevoir une dose stable pendant au moins 8 semaines, mais avoir une maladie qui n'est pas suffisamment contrôlée par le ruxolitinib

Pour le bras 3 (naïfs d'inhibiteurs de JAK), les critères suivants doivent être pris en compte :

  • Patients avec un diagnostic confirmé de MF qui répondent à tous les critères suivants
  • Catégorie de risque DIPSS (Dynamic International Prognostic Scoring System) intermédiaire-2 ou supérieure
  • Numération plaquettaire ≥ 100 x 10 ^ 9 / L sans l'aide de facteurs thrombopoïétiques ou de transfusions
  • Volume de la rate ≥ 450 cm^3 par IRM/TDM
  • Au moins 2 symptômes mesurables (score ≥ 3) ou un score total ≥ 10 à l'aide du formulaire d'évaluation des symptômes de la myélofibrose version 4.0 ( MFSAF v4.0)
  • Aucun traitement préalable avec JAKi autorisé

Pour le bras 4 (extension ET), les critères suivants doivent être pris en compte :

  • Patients avec un diagnostic confirmé de TE
  • Maladie à haut risque, définie comme répondant à au moins un des critères suivants :
  • Âge > 60 ans
  • Numération plaquettaire > 1500 × 10^9/L (à tout moment de la maladie du patient)
  • Thrombose, érythromélalgie ou migraine précédemment documentée
  • Hémorragie antérieure liée à l'ET
  • Diabète ou hypertension nécessitant un traitement pharmacologique pendant > 6 mois

  • Avoir ≥ 2 symptômes avec un score moyen ≥ 3 sur la période de 7 jours précédant le Cycle 1 Jour 1 ou un score total moyen de ≥ 15 sur la période de 7 jours précédant le Cycle 1 Jour 1 en utilisant le MPN SAF

    • Plaquettes > 600 × 10^9/L
    • Résistant ou intolérant à l'HU

Critère d'exclusion:

  • Infection active ou chronique actuelle connue par le virus de l'immunodéficience humaine (VIH), l'hépatite B ou l'hépatite C.
  • Fonction cardiaque altérée ou maladies cardiaques cliniquement significatives
  • Patients de classe Child-Pugh B ou C
  • Altération de la fonction gastro-intestinale (GI) ou maladie gastro-intestinale pouvant altérer de manière significative l'absorption du pélabrésib et/ou du ruxolitinib, y compris toute nausée, vomissement ou diarrhée non résolue de grade CTCAE > 1
  • Traitement préalable avec un inhibiteur de BET.
  • Femmes enceintes ou allaitantes
  • Toute autre condition médicale concomitante grave et/ou non contrôlée qui pourrait compromettre la participation à l'étude
  • Patients refusant ou incapables de se conformer à ce protocole d'étude.

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: Non randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Aucun (étiquette ouverte)

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: Phase 1
Patients were enrolled in sequential cohorts (acute leukemia, including acute myelogenous leukemia (AML), acute lymphocytic leukemia (ALL), and acute undifferentiated or biphenotypic leukemia; chronic myelogenous leukemia (CML) in blast crisis; myelodysplastic syndrome (MDS); myelodysplastic/myeloproliferative neoplasms (MDS/MPN); or myelofibrosis (MF)) and received escalating doses of pelabresib (CPI-0610).
Médicament: Pelabresib
CPI-0610 was administered orally once daily for 14 consecutive days, followed by a 7-day break (1 cycle = 21 days)
Autres noms:
  • CPI-0610
  • DAK539
Expérimental: Phase 2 (Arm 1): Prior JAKi Monotherapy Arm (MF patients treated with pelabresib alone)
  • Cohort 1A: Was open to patients with MF who were Transfusion Dependent (TD) and who had previously been treated with a JAKi and were intolerant, resistant, refractory, or had lost response to the JAKi, or were ineligible to be treated with a JAKi (pelabresib (CPI-0610) alone).
  • Cohort 1B: Was open to patients with MF who were not TD and who had previously been treated with a JAKi and were intolerant, resistant, refractory, or had lost response to the JAKi, or were ineligible to be treated with a JAKi (pelabresib (CPI-0610) alone).
Médicament: Pelabresib
CPI-0610 was administered orally once daily for 14 consecutive days, followed by a 7-day break (1 cycle = 21 days)
Autres noms:
  • CPI-0610
  • DAK539
Expérimental: Phase 2 (Arm 2): Prior JAKi Combination Arm
  • Cohort 2A: Was open to patients with MF who were Transfusion Dependent (TD) and were taking ruxolitinib but had disease that was not adequately controlled by ruxolitinib (pelabresib (CPI-0610) + Ruxolitinib).
  • Cohort 2B: Was open to patients with MF who were not TD and were taking ruxolitinib but had disease that was not adequately controlled by ruxolitinib (pelabresib (CPI-0610) + Ruxolitinib).
Médicament: Pelabresib
CPI-0610 was administered orally once daily for 14 consecutive days, followed by a 7-day break (1 cycle = 21 days)
Autres noms:
  • CPI-0610
  • DAK539
Médicament: Ruxolitinib
Ruxolitinib was given orally, twice daily (BID), on a continuous basis for 21 consecutive days of each 21-day cycle.
Expérimental: Phase 2 (Arm 3): JAKi Naïve Combination Arm
Was open to patients with MF who had not previously received a JAKi (pelabresib (CPI-0610) + Ruxolitinib).
Médicament: Pelabresib
CPI-0610 was administered orally once daily for 14 consecutive days, followed by a 7-day break (1 cycle = 21 days)
Autres noms:
  • CPI-0610
  • DAK539
Médicament: Ruxolitinib
Ruxolitinib was given orally, twice daily (BID), on a continuous basis for 21 consecutive days of each 21-day cycle.
Expérimental: Phase 2 (Arm 4): Essential Thrombocythemia (ET) Monotherapy Arm
Was open to high-risk patients with ET who were resistant or intolerant to hydroxyurea (HU) (pelabresib (CPI-0610) alone).
Médicament: Pelabresib
CPI-0610 was administered orally once daily for 14 consecutive days, followed by a 7-day break (1 cycle = 21 days)
Autres noms:
  • CPI-0610
  • DAK539

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Phase 1: Frequency of Dose-limiting Toxicities (DLTs)
Délai: Up to 21 days
A dose-limiting toxicity (DLT) was defined as an adverse event or abnormal laboratory value assessed by the Investigator as unrelated to disease progression, intercurrent illness, or concomitant medications that occurred within the first cycle of treatment (21-day cycle) with pelabresib (CPI-0610), and that met any of the criteria specified in the protocol.
Up to 21 days
Phase 2 (Cohorts 1B, 2B, and Arm 3): Number of Participants With Splenic Response Rate (SVR35) at Week 24
Délai: Week 24 (Cycle 9 Day 1)
Splenic Response Rate (SVR35) at Week 24 was defined as the proportion of participants who demonstrated a reduction of at least 35% in spleen size from baseline, as measured by imaging techniques (MRI or CT), following 24 weeks of treatment.
Week 24 (Cycle 9 Day 1)
Phase 2 (Cohorts 1A and 2A): Number of Participants Enrolled as Transfusion Dependent (TD) With Conversion Rate From Red Blood Cell (RBC) Transfusion Dependence (TD) to Transfusion Independence (TI)
Délai: Any 12 consecutive weeks (rolling window) during active treatment with pelabresib (CPI-0610), from first dose through treatment discontinuation (up to approximately 8 years for Phase II)
Conversion rate was defined as the proportion of participants who converted from transfusion dependence (TD) to transfusion independence (TI). TD was characterized by receiving an average of at least 2 units of red blood cell (RBC) transfusions per month-amounting to a minimum of 6 units over the 12 weeks prior to enrollment-while TI was defined as the absence of RBC transfusions during any consecutive 12-week period.
Any 12 consecutive weeks (rolling window) during active treatment with pelabresib (CPI-0610), from first dose through treatment discontinuation (up to approximately 8 years for Phase II)
Phase 2 (Arm 4): Number of Participants With Complete Hematological Response (CHR) Rate
Délai: Over 2 consecutive cycles (rolling window) (1 cycle = 21 days)
Complete Hematological Response (CHR) Rate was defined as the proportion of participants who fulfilled the criteria for CHR, based on the modified European LeukemiaNet (ELN) guidelines (Barosi et al 2009): platelet count ≤400 × 10⁹/L, white blood cell (WBC) count ≤10 × 10⁹/L, confirmation of laboratory values after one treatment cycle, and normal spleen size determined by palpation or imaging.
Over 2 consecutive cycles (rolling window) (1 cycle = 21 days)

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Phase 1: Number of Adverse Events and Serious Adverse Events as Assessed by CTCAE Criteria
Délai: Up to approximately 6 months
The distribution of adverse events was performed through the analysis of frequencies for treatment-emergent adverse events (TEAEs) and serious adverse events (TESAEs), based on the monitoring of relevant clinical and laboratory safety parameters. Treatment-emergent adverse events (TEAEs) in this study were defined as events that began after the first dose of study treatment and continued until 30 days after the last dose, or events that were present prior to the first dose and increased in severity based on preferred term within 30 days following the last dose of pelabresib (CPI-0610).
Up to approximately 6 months
Phase 2 (All Arms): Number of Adverse Events and Serious Adverse Events as Assessed by CTCAE Criteria
Délai: Up to approximately 387 weeks
The distribution of adverse events was performed through the analysis of frequencies for treatment-emergent adverse events (TEAEs) and serious adverse events (TESAEs), based on the monitoring of relevant clinical and laboratory safety parameters. Treatment-emergent adverse events (TEAEs) in this study were defined as events that began after the first dose of study treatment and continued until 30 days after the last dose, or events that were present prior to the first dose and increased in severity based on preferred term within 30 days following the last dose of pelabresib (CPI-0610).
Up to approximately 387 weeks
Phase 2 (All Arms): Symptom Improvement From the Patient Global Impression of Change (PGIC) at 12 and 24 Weeks
Délai: Week 12 (Cycle 5 Day 1), Week 24 weeks (Cycle 9 Day 1)
The Patient Global Impression of Change (PGIC) was a single-question, patient-reported assessment that asked individuals to rate their overall change in myeloproliferative neoplasm (MPN) symptoms since starting study treatment. The participants selected one of seven options, ranging from 'Very much improved' to 'Very much worse'. 'No Change from Baseline' indicated stable symptoms (no improvement or worsening), negative change from Baseline indicated a reduction in symptom severity (improvement), and positive change from Baseline indicated an increase in symptom severity (worsening).
Week 12 (Cycle 5 Day 1), Week 24 weeks (Cycle 9 Day 1)
Phase 2 (Arms 1, 2 and 3): Percent Change From Baseline in Total Symptom Score (TSS) From the Myelofibrosis Symptom Assessment Form (MFSAF v4.0) at 12 and 24 Weeks
Délai: Baseline, Week 12 (Cycle 5 Day 1), Week 24 (Cycle 9 Day 1)
The MFSAF (Myelofibrosis Symptom Assessment Form) was completed by participants every day for 7 days before Day 1 of each treatment cycle, including the 7 days before starting Cycle 1. It used a 24-hour recall format, asking participants to rate the worst severity of seven symptoms (fatigue, night sweats, pruritus, abdominal discomfort, pain under the ribs on the left side, early satiety, and bone pain) during the past 24 hours. Each symptom was rated on a scale from 0 (Absent) to 10 (Worst Imaginable). The Total Symptom Score (TSS) was the sum of 7 symptoms (range: 0-70). 'No Change from Baseline' indicated stable symptoms (no improvement or worsening), negative change from Baseline indicated a reduction in symptom severity (improvement), and positive change from Baseline indicated an increase in symptom severity (worsening).
Baseline, Week 12 (Cycle 5 Day 1), Week 24 (Cycle 9 Day 1)
Phase 2 (Arms 1, 2 and 3): Number of Participants Who Achieved a ≥ 50% Reduction in Total Symptom Score (TSS) at 12 and 24 Weeks
Délai: Week 12 (Cycle 5 Day 1), Week 24 (Cycle 9 Day 1)
The proportion of study participants who experienced a reduction of at least 50% in their Total Symptom Score (TSS), as assessed using the Myelofibrosis Symptom Assessment Form (MFSAF v4.0), was evaluated at both 12 and 24 weeks relative to their baseline score.
Week 12 (Cycle 5 Day 1), Week 24 (Cycle 9 Day 1)
Phase 2 (Arms 1, 2 and 3): Number of Participants With Overall Splenic Response Rate (Overall SVR35)
Délai: Through Phase II completion, an average of 6 years
Overall Splenic Response Rate (SVR35) was defined as the proportion of participants who achieved a reduction of at least 35% in spleen size from baseline, as measured by imaging (MRI or CT), at any point between Cycle 1 Day 1 and the End of Study Visit, whichever occurred first.
Through Phase II completion, an average of 6 years
Phase 2 (Arms 1, 2 and 3): Duration of Overall Splenic Response (Overall SVR35)
Délai: From first onset of splenic response until loss of response, assessed up to approximately 6 years
Duration of Overall Splenic Response (overall SVR35) was defined as the time from the first occurrence of a at least 35% reduction in spleen volume from baseline until the earliest of the following: a reduction of less than 35% from baseline combined with an increase of more than 25% from the nadir in spleen volume (as measured by MRI or CT), or death. The nadir was defined as the lowest spleen volume recorded after baseline and up to the evaluation point at which the initial splenic response was achieved.
From first onset of splenic response until loss of response, assessed up to approximately 6 years
Phase 2 (Cohorts 1A and 2A): Number of Participants With Splenic Response Rate (SVR35) at 12 and 24 Weeks
Délai: Week 12 (Cycle 5 Day 1), Week 24 weeks (Cycle 9 Day 1)
Splenic Response Rate (SVR35) at 12 and 24 weeks was defined as the proportion of participants who achieved a reduction of at least 35% in spleen size from baseline, as determined by imaging (MRI or CT), following 12 and 24 weeks of treatment, respectively.
Week 12 (Cycle 5 Day 1), Week 24 weeks (Cycle 9 Day 1)
Phase 2 (Cohorts 1A and 2A): Duration of Red Blood Cell (RBC) Transfusion Independence (TI) in Participants Who Enroll as Transfusion Dependent (TD)
Délai: From first onset of TI to earliest onset of loss of TI, assessed up to approximately 6 years
Duration of Red Blood Cell (RBC) Transfusion Independence (TI) was defined as the longest continuous period during which participants, having achieved at least 12 weeks of transfusion independence, remained free from RBC transfusions.
From first onset of TI to earliest onset of loss of TI, assessed up to approximately 6 years
Phase 2 (Cohorts 1A and 2A): Early Anemic Response Rate in Participants Who Enroll as Transfusion Dependent (TD)
Délai: Through Phase II completion, an average of 6 years
Early anemic response rate was defined as the proportion of participants who achieved an average increase of at least 1 g/dL in hemoglobin concentration over any rolling 8-week (56-day) period following baseline. This calculation was performed after applying the 14/3 day rule, which stipulates that hemoglobin measurements must be spaced at least 14 days apart, and that at least 3 such measurements are required within the 8-week window to ensure a reliable average. Importantly, this increase had to occur without any red blood cell (RBC) transfusions during the treatment period and up to the time of the latest hemoglobin assessment for each patient.
Through Phase II completion, an average of 6 years
Phase 2 (Cohorts 1B, 2B, and Arm 3): Number of Participants With Splenic Response Rate (SVR35) at 12 Weeks
Délai: Week 12 (Cycle 5 Day 1)
Splenic Response Rate (SVR35) at Week 12 was defined as the proportion of participants who achieved a reduction of at least 35% in spleen size from baseline, as measured by imaging (MRI or CT), following 12 weeks of treatment.
Week 12 (Cycle 5 Day 1)
Phase 2 (Cohorts 1B, 2B, and Arm 3): Anemic Response Rate in Participants Who Enroll as Non-transfusion-dependent (Non-TD)
Délai: Through Phase II completion, an average of 6 years
Anemic response was defined as a sustained average increase in hemoglobin concentration of at least 1.5 g/dL over any rolling 12-week (84-day) period following baseline. This calculation excluded periods involving red blood cell (RBC) transfusions and was performed after applying the 14/3-day rule for valid hemoglobin assessments. The response had to be maintained through to the most recent available hemoglobin measurement for each patient.
Through Phase II completion, an average of 6 years
Phase 2 (Arm 4): Percentage of Participants Who Achieve a ≥50% Reduction From Baseline in the Myeloproliferative Neoplasm Symptom Assessment Form (MPN-SAF) Total Score
Délai: Baseline, 12 weeks (Cycle 5, Day 1), 24 weeks (Cycle 9, Day 1)
The Myeloproliferative Neoplasm Symptom Assessment Form (MPN-SAF) is a patient-reported questionnaire designed to measure symptom burden in participants with myeloproliferative neoplasms (MPNs). Participants rate the severity of several symptoms (such as fatigue, night sweats, itching, abdominal discomfort, bone pain, early satiety, and others) over the past 24 hours. Each symptom is scored on a scale from 0 (absent/as good as it can be) to 10 (worst imaginable/as bad as it can be). The total score is the sum of all individual symptom scores, providing an overall measure of symptom burden. A 50% reduction in the MPN-SAF total score at 12 or 24 weeks means the patient's overall symptom burden has improved by half compared to their baseline (pre-treatment) score.
Baseline, 12 weeks (Cycle 5, Day 1), 24 weeks (Cycle 9, Day 1)
Phase 2 (Arm 4): Partial Hematological Response Rate (PHR)
Délai: Over 2 consecutive cycles (rolling window) (1 cycle = 21 days)

Partial Hematological Response Rate (PHR) was defined as the proportion of participants who met the following criteria over two consecutive cycles up to the last administration of study treatment:

  • Platelet count > 400-600 x 10^9/L
  • WBC count within normal range (i.e., ≤ 10 x 10^9/L)
  • Laboratory results confirmed after 1 cycle (after 3weeks)
Over 2 consecutive cycles (rolling window) (1 cycle = 21 days)
Phase 2 (Arm 4): Overall Hematological Response Rate (OHR)
Délai: Through Phase II completion, an average of 6 years
Confirmed Overall Hematological Response (OHR) Rate was defined as the proportion of participants with either a confirmed complete or a partial hematological response at any time.
Through Phase II completion, an average of 6 years
Phase 2 (Arm 4): Duration of Overall Hematological Response Rate (OHR)
Délai: Through Phase II completion, an average of 6 years
Duration of Overall Hematological Response (OHR) Rate was defined as the time from when the overall hematological response was first met until the time at which the overall hematological response was lost, i.e., the criteria for an overall hematological response (CHR or PHR) were not observed or death occurred, whichever came first.
Through Phase II completion, an average of 6 years
Phase 2 (Arm 4): Rate of Hemorrhagic and Thromboembolic (TE) Events
Délai: Through Phase II completion, an average of 6 years
Rate of hemorrhagic and thromboembolic (TE) events was defined as the proportion of participants with hemorrhagic or thromboembolic events throughout the study.
Through Phase II completion, an average of 6 years
Phase 2 (All Arms): Maximum Observed Plasma Concentration (Cmax) of Pelabresib
Délai: Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.

Pharmacokinetic (PK) parameters were calculated based on Pelabresib plasma concentrations and actual sampling time points.

Cmax was listed and summarized using descriptive statistics.
Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.
Phase 2 (All Arms): Time to Reach Maximum Concentration (Tmax) of Pelabresib
Délai: Cycle 1 Day 14 (predose, 30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.

Pharmacokinetic (PK) parameters were calculated based on Pelabresib plasma concentrations and actual sampling time points.

Tmax was listed and summarized using descriptive statistics.
Cycle 1 Day 14 (predose, 30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.
Phase 2 (All Arms): Predose (Trough) Concentration at the End of a Dosing Interval (Ctrough) of Pelabresib
Délai: Cycle 1 Day 14 (predose, 30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.

Pharmacokinetic (PK) parameters were calculated based on Pelabresib plasma concentrations and actual sampling time points.

Ctrough was listed and summarized using descriptive statistics.
Cycle 1 Day 14 (predose, 30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.
Phase 2 (All Arms): Area Under the Concentration-Time Curve From Time Zero to the Last Observed Concentration (AUClast) of Pelabresib
Délai: Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.

Pharmacokinetic (PK) parameters were calculated based on Pelabresib plasma concentrations and actual sampling time points.

AUClast was listed and summarized using descriptive statistics.
Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.
Phase 2 (All Arms): Area Under the Concentration-Time Curve From Time Zero to 8 Hours Post-dose at Steady State (AUC0-8,ss) of Pelabresib
Délai: Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.

Pharmacokinetic (PK) parameters were calculated based on Pelabresib plasma concentrations and actual sampling time points.

AUC0-8,ss was listed and summarized using descriptive statistics.
Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.
Phase 2 (All Arms): Time of Last Measurable Concentration (Tlast) of Pelabresib
Délai: Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.

Pharmacokinetic (PK) parameters were calculated based on Pelabresib plasma concentrations and actual sampling time points.

Tlast was listed and summarized using descriptive statistics.
Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.
Phase 2 (Arm 2 - Cohort 2A): Maximum Observed Plasma Concentration (Cmax) of Ruxolitinib
Délai: Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.

Pharmacokinetic (PK) parameters were calculated based on ruxolitinib plasma concentrations and actual sampling time points.

Cmax was listed and summarized using descriptive statistics.
Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.
Phase 2 (Arm 2 - Cohort 2A): Time to Reach Maximum Concentration (Tmax) of Ruxolitinib
Délai: Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.

Pharmacokinetic (PK) parameters were calculated based on ruxolitinib plasma concentrations and actual sampling time points.

Tmax was listed and summarized using descriptive statistics.
Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.
Phase 2 (Arm 2 - Cohort 2A): Predose (Trough) Concentration at the End of a Dosing Interval (Ctrough) of Ruxolitinib
Délai: Cycle 1 Day 14 (predose, 30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.

Pharmacokinetic (PK) parameters were calculated based on ruxolitinib plasma concentrations and actual sampling time points.

Ctrough was listed and summarized using descriptive statistics.
Cycle 1 Day 14 (predose, 30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.
Phase 2 (Arm 2 - Cohort 2A): Area Under the Concentration-Time Curve From Time Zero to the Last Observed Concentration (AUClast) of Ruxolitinib
Délai: Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.

Pharmacokinetic (PK) parameters were calculated based on ruxolitinib plasma concentrations and actual sampling time points.

AUClast was listed and summarized using descriptive statistics.
Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.
Phase 2 (Arm 2 - Cohort 2A): Area Under the Concentration-Time Curve From Time Zero to 8 Hours Post-dose at Steady State (AUC0-8,ss) of Ruxolitinib
Délai: Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.

Pharmacokinetic (PK) parameters were calculated based on ruxolitinib plasma concentrations and actual sampling time points.

AUC0-8,ss was listed and summarized using descriptive statistics.
Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.
Phase 2 (Arm 2 - Cohort 2B): Maximum Observed Plasma Concentration (Cmax) of Ruxolitinib
Délai: Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.

Pharmacokinetic (PK) parameters were calculated based on ruxolitinib plasma concentrations and actual sampling time points.

Cmax was listed and summarized using descriptive statistics.
Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.
Phase 2 (Arm 2 - Cohort 2B): Time to Reach Maximum Concentration (Tmax) of Ruxolitinib
Délai: Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.

Pharmacokinetic (PK) parameters were calculated based on ruxolitinib plasma concentrations and actual sampling time points.

Tmax was listed and summarized using descriptive statistics.
Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.
Phase 2 (Arm 2 - Cohort 2B): Predose (Trough) Concentration at the End of a Dosing Interval (Ctrough) of Ruxolitinib
Délai: Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.

Pharmacokinetic (PK) parameters were calculated based on ruxolitinib plasma concentrations and actual sampling time points.

Ctrough was listed and summarized using descriptive statistics.
Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.
Phase 2 (Arm 2 - Cohort 2B): Area Under the Concentration-Time Curve From Time Zero to the Last Observed Concentration (AUClast) of Ruxolitinib
Délai: Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.

Pharmacokinetic (PK) parameters were calculated based on ruxolitinib plasma concentrations and actual sampling time points.

AUClast was listed and summarized using descriptive statistics.
Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.
Phase 2 (Arm 2 - Cohort 2B): Area Under the Concentration-Time Curve From Time Zero to 8 Hours Post-dose at Steady State (AUC0-8,ss) of Ruxolitinib
Délai: Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.

Pharmacokinetic (PK) parameters were calculated based on ruxolitinib plasma concentrations and actual sampling time points.

AUC0-8,ss was listed and summarized using descriptive statistics.
Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.
Phase 2 (Arm 3): Maximum Observed Plasma Concentration (Cmax) of Ruxolitinib
Délai: Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.

Pharmacokinetic (PK) parameters were calculated based on ruxolitinib plasma concentrations and actual sampling time points.

Cmax was listed and summarized using descriptive statistics.
Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.
Phase 2 (Arm 3): Time to Reach Maximum Concentration (Tmax) of Ruxolitinib
Délai: Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.

Pharmacokinetic (PK) parameters were calculated based on ruxolitinib plasma concentrations and actual sampling time points.

Tmax was listed and summarized using descriptive statistics.
Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.
Phase 2 (Arm 3): Predose (Trough) Concentration at the End of a Dosing Interval (Ctrough) of Ruxolitinib
Délai: Cycle 1 Day 14 (predose, 30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.

Pharmacokinetic (PK) parameters were calculated based on ruxolitinib plasma concentrations and actual sampling time points.

Ctrough was listed and summarized using descriptive statistics.
Cycle 1 Day 14 (predose, 30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.
Phase 2 (Arm 3): Area Under the Concentration-Time Curve From Time Zero to the Last Observed Concentration (AUClast) of Ruxolitinib
Délai: Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.

Pharmacokinetic (PK) parameters were calculated based on ruxolitinib plasma concentrations and actual sampling time points.

AUClast was listed and summarized using descriptive statistics.
Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.
Phase 2 (Arm 3): Area Under the Concentration-Time Curve From Time Zero to 8 Hours Post-dose at Steady State (AUC0-8,ss) of Ruxolitinib
Délai: Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.

Pharmacokinetic (PK) parameters were calculated based on ruxolitinib plasma concentrations and actual sampling time points.

AUC0-8,ss was listed and summarized using descriptive statistics.
Cycle 1 Day 14 (30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours post-dose). 1 cycle = 21 days.

Autres mesures de résultats

Mesure des résultats
Délai
Phase 2 (groupes 1, 2 et 3) : Évaluer le taux de catégorie de réponse
Délai: Taux de réponse selon les critères de l'International Working Group - Myeloproliferative Neoplasms Research and Treatment (IWG-MRT) après 24 semaines
Taux de réponse selon les critères de l'International Working Group - Myeloproliferative Neoplasms Research and Treatment (IWG-MRT) après 24 semaines
Phase 2 (groupes 1, 2 et 3) : évaluer le taux de transfusion de globules rouges et le taux de dépendance aux transfusions de globules rouges
Délai: Nombre moyen d'unités RBC par sujet-mois, jusqu'à 24 semaines et au-delà
Nombre moyen d'unités RBC par sujet-mois, jusqu'à 24 semaines et au-delà

Collaborateurs et enquêteurs

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

Parrainer

Constellation Pharmaceuticals

Collaborateurs

The Leukemia and Lymphoma Society

Les enquêteurs

  • Directeur d'études: Novartis Pharmaceuticals, Novartis Pharmaceuticals

Publications et liens utiles

La personne responsable de la saisie des informations sur l'étude fournit volontairement ces publications. Il peut s'agir de tout ce qui concerne l'étude.

Publications générales

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)

16 juillet 2014

Achèvement primaire (Réel)

9 janvier 2025

Achèvement de l'étude (Réel)

9 janvier 2025

Dates d'inscription aux études

Première soumission

5 juin 2014

Première soumission répondant aux critères de contrôle qualité

5 juin 2014

Première publication (Estimé)

9 juin 2014

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

4 juin 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

8 mai 2026

Dernière vérification

1 avril 2026

Plus d'information

Termes liés à cette étude

Mots clés

Termes MeSH pertinents supplémentaires

Autres numéros d'identification d'étude

  • 0610-02
  • 2018-000579-34 (Numéro EudraCT)
  • CDAK539A12201 (Autre identifiant: Novartis)

Plan pour les données individuelles des participants (IPD)

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

OUI

Description du régime IPD

Novartis s'engage à partager avec des chercheurs externes qualifiés l'accès aux données des patients et aux documents cliniques à l'appui des études éligibles. Ces demandes sont examinées et approuvées par un comité d'examen indépendant sur la base de leur mérite scientifique. Toutes les données fournies sont anonymisées afin de respecter la vie privée des patients ayant participé à l'essai, conformément aux lois et réglementations applicables.

La disponibilité de ces données d'essai est conforme aux critères et au processus décrits sur 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

produit fabriqué et exporté des États-Unis.

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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