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Eine Phase-2-Studie zu CPI-0610 mit und ohne Ruxolitinib bei Patienten mit Myelofibrose

8. Mai 2026 aktualisiert von: Constellation Pharmaceuticals

Eine Phase-1/2-Studie zu CPI-0610, einem niedermolekularen Inhibitor von BET-Proteinen: Phase 1 (Dosissteigerung von CPI-0610 bei Patienten mit hämatologischen Malignomen) und Phase 2 (Dosiserweiterung von CPI-0610 mit und ohne Ruxolitinib bei Patienten). bei Myelofibrose und essenzieller Thrombozytopenie)

Phase-1-Teil (vollständig): Open-Label-Studie zur sequentiellen Dosiseskalation von Pelabresib bei Patienten mit vorbehandelter akuter Leukämie, myelodysplastischem Syndrom, myelodysplastischen/myeloproliferativen Neoplasien und Myelofibrose.

Phase-2-Teil: Offene Studie zu CPI-0610 mit und ohne Ruxolitinib bei Patienten mit Myelofibrose.

CPI-0610 ist ein niedermolekularer Inhibitor von Bromodomänen- und extraterminalen (BET) Proteinen.

Studienübersicht

Status

Abgeschlossen

Bedingungen

Intervention / Behandlung

Studientyp

Interventionell

Einschreibung (Tatsächlich)

336

Phase

  • Phase 2
  • Phase 1

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienorte

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

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

18 Jahre und älter (Erwachsene, Älterer Erwachsener)

Akzeptiert gesunde Freiwillige

Nein

Beschreibung

Einschlusskriterien:

Teil Phase 2: Patienten mit bestätigter MF-Diagnose, die alle folgenden Kriterien erfüllen:

  • ANC ≥ 1 x 10^9/L ohne Zuhilfenahme von Granulozyten-Wachstumsfaktoren
  • Zählung der peripheren Blutblasten
  • ECOG-Leistungsstatus ≤ 2.
  • Angemessene hämatologische, Nieren-, Leber- und Gerinnungslaboruntersuchungen
  • Keine vorherige Behandlung mit einem BET-Hemmer
  • Die Patienten müssen vor der Durchführung eines studienbezogenen Verfahrens eine schriftliche Einverständniserklärung zur Teilnahme an dieser Studie abgeben.

Für Arm 1 und 2 sollten die folgenden Kriterien berücksichtigt werden:

  • Patienten mit bestätigter MF-Diagnose, die alle folgenden Kriterien erfüllen
  • Risikokategorie des Dynamic International Prognostic Scoring System (DIPSS) von Intermediate-2 oder höher
  • Milzvolumen ≥ 450 cm^3 laut MRT oder CT für die Kohorten 1B und 2B ODER Abhängigkeit von Erythrozytentransfusionen (definiert als durchschnittlich ≥2 Einheiten von Erythrozytentransfusionen pro Monat (insgesamt mehr als 6 Erythrozytentransfusionen) in den 12 Wochen vor der Aufnahme für die Kohorten 1A und 2A)
  • Mindestens 2 messbare Symptome (Score ≥ 1) mit dem Myelofibrose Symptom Assessment Form Version 4.0 (MFSAF v4.0)
  • Thrombozytenzahl ≥ 75 x 10^9/L ohne Unterstützung durch thrombopoetische Faktoren oder Transfusionen für mindestens 14 Tage
  • Arm (Arm 1): Wurde zuvor mit einem JAK-Inhibitor behandelt und ist intolerant, resistent, refraktär oder reagiert nicht mehr auf den JAK-Inhibitor; den JAK-Inhibitor nicht innerhalb von 2 Wochen vor Beginn des Studienmedikaments erhalten haben oder für eine Behandlung mit einem JAK-Inhibitor nicht in Frage kommen
  • Kombinationsarm (Arm 2): Muss Ruxolitinib als Einzelwirkstoff erhalten haben und mindestens 8 Wochen lang auf einer stabilen Dosis sein, aber eine Krankheit haben, die durch Ruxolitinib nicht angemessen kontrolliert wird

Für Arm 3 (JAK-Inhibitoren naiv) sollten die folgenden Kriterien berücksichtigt werden:

  • Patienten mit bestätigter MF-Diagnose, die alle folgenden Kriterien erfüllen
  • Risikokategorie des Dynamic International Prognostic Scoring System (DIPSS) von Intermediate-2 oder höher
  • Thrombozytenzahl ≥ 100 x 10^9/L ohne Unterstützung durch thrombopoetische Faktoren oder Transfusionen
  • Milzvolumen ≥ 450 cm^3 laut MRT/CT
  • Mindestens 2 messbare Symptome (Score ≥ 3) oder ein Gesamtscore von ≥ 10 unter Verwendung des Myelofibrose Symptom Assessment Form Version 4.0 (MFSAF v4.0)
  • Keine vorherige Behandlung mit JAKi erlaubt

Für Arm 4 (ET-Erweiterung) sollten die folgenden Kriterien berücksichtigt werden:

  • Patienten mit einer bestätigten Diagnose von ET
  • Hochrisikoerkrankung, definiert als Erfüllung mindestens eines der folgenden Kriterien:
  • Alter > 60 Jahre
  • Thrombozytenzahl > 1500 × 10^9/L (zu jedem Zeitpunkt während der Erkrankung des Patienten)
  • Zuvor dokumentierte Thrombose, Erythromelalgie oder Migräne
  • Frühere Blutung im Zusammenhang mit ET
  • Diabetes oder Bluthochdruck, der eine pharmakologische Therapie für > 6 Monate erfordert

  • ≥2 Symptome mit einer durchschnittlichen Punktzahl ≥3 über den 7-tägigen Zeitraum vor Tag 1 von Zyklus 1 oder eine durchschnittliche Gesamtpunktzahl von ≥15 über den 7-tägigen Zeitraum vor Tag 1 von Zyklus 1 unter Verwendung des MPN SAF haben

    • Blutplättchen > 600 × 10^9/l
    • Resistenz oder Intoleranz gegenüber HU

Ausschlusskriterien:

  • Aktuell bekannte aktive oder chronische Infektion mit dem humanen Immundefizienzvirus (HIV), Hepatitis B oder Hepatitis C.
  • Eingeschränkte Herzfunktion oder klinisch signifikante Herzerkrankungen
  • Patienten mit Child-Pugh-Klasse B oder C
  • Beeinträchtigung der gastrointestinalen (GI) Funktion oder GI-Erkrankung, die die Resorption von Pelabresib und/oder Ruxolitinib signifikant verändern könnte, einschließlich ungelöster Übelkeit, Erbrechen oder Diarrhoe, die CTCAE-Grad >1 ist
  • Vorbehandlung mit einem BET-Hemmer.
  • Schwangere oder stillende Frauen
  • Jede andere gleichzeitige schwere und/oder unkontrollierte Begleiterkrankung, die die Teilnahme an der Studie beeinträchtigen könnte
  • Patienten, die dieses Studienprotokoll nicht einhalten wollen oder können.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: Nicht randomisiert
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Keine (Offenes Etikett)

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: 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).
Arzneimittel: Pelabresib
CPI-0610 was administered orally once daily for 14 consecutive days, followed by a 7-day break (1 cycle = 21 days)
Andere Namen:
  • CPI-0610
  • DAK539
Experimental: 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).
Arzneimittel: Pelabresib
CPI-0610 was administered orally once daily for 14 consecutive days, followed by a 7-day break (1 cycle = 21 days)
Andere Namen:
  • CPI-0610
  • DAK539
Experimental: 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).
Arzneimittel: Pelabresib
CPI-0610 was administered orally once daily for 14 consecutive days, followed by a 7-day break (1 cycle = 21 days)
Andere Namen:
  • CPI-0610
  • DAK539
Arzneimittel: Ruxolitinib
Ruxolitinib was given orally, twice daily (BID), on a continuous basis for 21 consecutive days of each 21-day cycle.
Experimental: 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).
Arzneimittel: Pelabresib
CPI-0610 was administered orally once daily for 14 consecutive days, followed by a 7-day break (1 cycle = 21 days)
Andere Namen:
  • CPI-0610
  • DAK539
Arzneimittel: Ruxolitinib
Ruxolitinib was given orally, twice daily (BID), on a continuous basis for 21 consecutive days of each 21-day cycle.
Experimental: 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).
Arzneimittel: Pelabresib
CPI-0610 was administered orally once daily for 14 consecutive days, followed by a 7-day break (1 cycle = 21 days)
Andere Namen:
  • CPI-0610
  • DAK539

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Phase 1: Frequency of Dose-limiting Toxicities (DLTs)
Zeitfenster: 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
Zeitfenster: 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)
Zeitfenster: 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
Zeitfenster: 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)

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Phase 1: Number of Adverse Events and Serious Adverse Events as Assessed by CTCAE Criteria
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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)
Zeitfenster: 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)
Zeitfenster: 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
Zeitfenster: 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)
Zeitfenster: 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)
Zeitfenster: 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
Zeitfenster: 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)
Zeitfenster: 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
Zeitfenster: 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)
Zeitfenster: 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)
Zeitfenster: 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)
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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.

Andere Ergebnismessungen

Ergebnis Maßnahme
Zeitfenster
Phase 2 (Arme 1, 2 und 3): Bewertung der Antwortkategorierate
Zeitfenster: Ansprechrate nach den Kriterien der International Working Group – Myeloproliferative Neoplasms Research and Treatment (IWG-MRT) nach 24 Wochen
Ansprechrate nach den Kriterien der International Working Group – Myeloproliferative Neoplasms Research and Treatment (IWG-MRT) nach 24 Wochen
Phase 2 (Arme 1, 2 und 3): Bewertung der RBC-Transfusionsrate und der RBC-Transfusionsabhängigkeitsrate
Zeitfenster: Durchschnittliche Anzahl von RBC-Einheiten pro Probandenmonat, bis zu 24 Wochen und darüber hinaus
Durchschnittliche Anzahl von RBC-Einheiten pro Probandenmonat, bis zu 24 Wochen und darüber hinaus

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Constellation Pharmaceuticals

Mitarbeiter

The Leukemia and Lymphoma Society

Ermittler

  • Studienleiter: Novartis Pharmaceuticals, Novartis Pharmaceuticals

Publikationen und hilfreiche Links

Die Bereitstellung dieser Publikationen erfolgt freiwillig durch die für die Eingabe von Informationen über die Studie verantwortliche Person. Diese können sich auf alles beziehen, was mit dem Studium zu tun hat.

Allgemeine Veröffentlichungen

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Tatsächlich)

16. Juli 2014

Primärer Abschluss (Tatsächlich)

9. Januar 2025

Studienabschluss (Tatsächlich)

9. Januar 2025

Studienanmeldedaten

Zuerst eingereicht

5. Juni 2014

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

5. Juni 2014

Zuerst gepostet (Geschätzt)

9. Juni 2014

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

4. Juni 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

8. Mai 2026

Zuletzt verifiziert

1. April 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Schlüsselwörter

Zusätzliche relevante MeSH-Bedingungen

Andere Studien-ID-Nummern

  • 0610-02
  • 2018-000579-34 (EudraCT-Nummer)
  • CDAK539A12201 (Andere Kennung: Novartis)

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

JA

Beschreibung des IPD-Plans

Novartis engagiert sich für den Austausch mit qualifizierten externen Forschern, den Zugriff auf Daten auf Patientenebene und unterstützende klinische Dokumente aus geeigneten Studien. Diese Anträge werden von einem unabhängigen Prüfgremium auf der Grundlage ihrer wissenschaftlichen Qualität geprüft und genehmigt. Alle bereitgestellten Daten werden anonymisiert, um die Privatsphäre der Patienten, die an der Studie teilgenommen haben, im Einklang mit den geltenden Gesetzen und Vorschriften zu wahren.

Die Verfügbarkeit dieser Studiendaten erfolgt gemäß den auf www.clinicalstudydatarequest.com beschriebenen Kriterien und Prozessen

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Ja

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

Produkt, das in den USA hergestellt und aus den USA exportiert wird

Nein

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