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Phase 3 Study of Pelabresib (CPI-0610) in Myelofibrosis (MF) (MANIFEST-2)

Phase 3
Active, not recruiting
Conditions
Myelofibrosis
Primary Myelofibrosis
Post-polycythemia Vera Myelofibrosis
Post-essential Thrombocythemia Myelofibrosis
Interventions
Registration Number
NCT04603495
Lead Sponsor
Constellation Pharmaceuticals
Brief Summary

A Phase 3, randomized, blinded study comparing pelabresib (CPI-0610) and ruxolitinib with placebo and ruxolitinib in myelofibrosis (MF) patients that have not been previously treated with Janus kinase inhibitors (JAKi). Pelabresib is a small molecule inhibitor of bromodomain and extra-terminal (BET) proteins.

Detailed Description

Not available

Recruitment & Eligibility

Status
ACTIVE_NOT_RECRUITING
Sex
All
Target Recruitment
430
Inclusion Criteria
  • Aged ≥ 18 years
  • Confirmed diagnosis of myelofibrosis (primary, post-polycythemia vera, or post essential thrombocythemia)
  • Adequate hematologic, renal, and hepatic function
  • Have at least 2 symptoms with an average score ≥ 3 or an average total score of ≥ 10 over the 7-day period prior to randomization using the MFSAF v4.0
  • Prognostic risk-factor score of Intermediate-1 or higher per Dynamic International Prognostic Scoring System (DIPSS) scoring system
  • Spleen volume of ≥ 450 cm^3
  • Eastern Cooperative Oncology Group (ECOG) performance status ≤ 2
Exclusion Criteria
  • Splenectomy or splenic irradiation in the previous 6 months
  • Chronic or active conditions and/or concomitant medication use that would prohibit treatment
  • Had prior treatment with any JAKi or BET inhibitor for treatment of a myeloproliferative neoplasm

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Pelabresib + ruxolitinibPelabresibPelabresib monohydrate tablets + ruxolitinib phosphate tablets
Pelabresib + ruxolitinibRuxolitinibPelabresib monohydrate tablets + ruxolitinib phosphate tablets
Placebo + ruxolitinibRuxolitinibMatching placebo tablets + ruxolitinib phosphate tablets
Placebo + ruxolitinibPlaceboMatching placebo tablets + ruxolitinib phosphate tablets
Primary Outcome Measures
NameTimeMethod
Number of Participants With Splenic Response by Central Reads at Week 2424 weeks of treatment

The primary endpoint of the study is splenic response, defined as a ≥35% reduction from baseline in spleen volume as measured by magnetic resonance imaging (MRI) or computerized tomography (CT), and assessed by blinded central radiology read at Week 24.

Secondary Outcome Measures
NameTimeMethod
Number of Participants With TSS50 Response at Week 2424 weeks of treatment

A key secondary endpoint of the study is Total Symptom Score (TSS) response, defined as a ≥50% decrease from baseline in TSS as measured by the Myelofibrosis Symptom Assessment Form v4.0, which equals the sum of the 7 individual item responses on the 0-10 scale, with a possible total daily score that may range from 0 to 70, at Week 24. A higher Total Symptom Score indicates a higher disease burden and thus a worse outcome.

Baseline TSS is calculated as the average of non-missing daily total symptom scores over the 7- day period prior to day of randomization. The TSS for a treatment week is the average of non-missing daily total symptom scores over that week. However, the weekly TSS will be considered missing if there are less than 4 daily total symptom scores available for that week.

Total Symptom Score Absolute Change From Baseline to Week 2424 weeks of treatment

A key secondary endpoint of the study is the absolute change in Total Symptom Score (TSS) at Week 24 compared to baseline as measured by the Myelofibrosis Symptom Assessment Form v4.0, which equals the sum of the 7 individual item responses on the 0-10 scale, with a possible total daily score that may range from 0 to 70. A higher TSS indicates a higher disease burden and thus a worse outcome.

Baseline TSS is calculated as the average of non-missing daily total symptom scores over the 7- day period prior to day of randomization. The TSS for a treatment week is the average of non-missing daily total symptom scores over that week. However, the weekly TSS will be considered missing if there are less than 4 daily total symptom scores available for that week.

Trial Locations

Locations (156)

Decatur Memorial Hospital Cancer Care Center of Decatur/Cancer Care Specialists of IL

🇺🇸

Decatur, Illinois, United States

Cleveland Clinic Taussig Cancer Center

🇺🇸

Cleveland, Ohio, United States

Sunway Medical Centre

🇲🇾

Petaling Jaya, Selangor, Malaysia

Maastricht University Medical Center

🇳🇱

Maastricht, Netherlands

Hospital Virgen Macarena

🇪🇸

Sevilla, Spain

Centre Hospitalier

🇫🇷

Le Mans, France

University Hospital Salzburg

🇦🇹

Salzburg, Austria

ZNA

🇧🇪

Antwerpen, Belgium

Cliniques universitaires Saint-Luc

🇧🇪

Brussel, Belgium

Domaine Universitaire du Sart Tilman

🇧🇪

Liège, Belgium

Peninsula Private Hospital Clinical Trials Unit

🇦🇺

Frankston, Victoria, Australia

UCLA Medical Center

🇺🇸

Los Angeles, California, United States

Royal Adelaide Hospital

🇦🇺

Adelaide, South Australia, Australia

LKH - Universitätsklinikum Graz; Abteilung für Hämatologie

🇦🇹

Graz, Austria

Kepler University Hospital

🇦🇹

Linz, Austria

Icon Cancer Centre

🇦🇺

Brisbane, Queensland, Australia

Centre Hospitalier Lyon Sud Secteur 1G

🇫🇷

Pierre-Bénite, France

USC/Norris Comprehensive Cancer Center

🇺🇸

Los Angeles, California, United States

Gard Cancer Institute

🇫🇷

Nîmes, France

Ironwood Physicians P.C. dba Ironwood Cancer and Research Centers

🇺🇸

Chandler, Arizona, United States

UZ Leuven

🇧🇪

Leuven, Belgium

: Pecs University, 1st Department of Medicine

🇭🇺

Pécs, Pecs, Hungary

University Hospital of Toledo

🇪🇸

Toledo, Spain

Morales Meseguer General University Hospital

🇪🇸

Murcia, Spain

Princess Margaret Cancer Center

🇨🇦

Toronto, Ontario, Canada

Hospital Universitario de Gran Canaria Dr. Negrin

🇪🇸

Las Palmas de Gran Canaria, Spain

The Catholic University of Korea

🇰🇷

Seoul, Korea, Republic of

Center for Blood Disorders and Cellular Therapy, Swedish Cancer Institute

🇺🇸

Seattle, Washington, United States

Krankenhaus der Elisabethinen Linz

🇦🇹

Linz, Austria

Hôpital de Jolimont

🇧🇪

La Louvière, Belgium

Hôpital Bretonneau

🇫🇷

Tours, France

Institut de Cancérologie Lucien Neuwirth

🇫🇷

Saint-Priest-en-Jarez, France

Hospital Clinic de Barcelona

🇪🇸

Barcelona, Spain

Wojewódzki Szpital Specjalistyczny w Bialej Podlaskiej

🇵🇱

Biała Podlaska, Poland

Uniwersyteckie Centrum Kliniczne

🇵🇱

Gdańsk, Poland

:Hospital Ampang

🇲🇾

Ampang, Selangor, Malaysia

Fakultni nemocnice Hradec Kralove

🇨🇿

Hradec Kralove, Czechia

Hospital Pulau Pinang

🇲🇾

George Town, Penang, Malaysia

Samsung Medical Center

🇰🇷

Seoul, Korea, Republic of

ICO Badalona - Hospital Universitari Germans Trias i Pujol

🇪🇸

Badalona, Spain

The Catholic University of South Korea Seoul St. Mary's Hospital

🇰🇷

Seoul, Korea, Republic of

Amsterdam UMC

🇳🇱

Amsterdam, Netherlands

AOU S.Luigi Gonzaga

🇮🇹

Orbassano, Italy

Hospital Queen Elizabeth

🇲🇾

Kota Kinabalu, Malaysia

Chang Gung Memorial Hospital Chiayi

🇨🇳

Chiayi City, Taiwan

Ankara University Faculty of Medicine Cebeci Research and Application Hospital

🇹🇷

Ankara, Turkey

Severance Hospital, Yonsei University Health System

🇰🇷

Seoul, Korea, Republic of

Korea University Anam Hospital

🇰🇷

Seoul, Korea, Republic of

Nasz Lekarz Przychodnie Medyczne

🇵🇱

Toruń, Poland

King Chulalongkorn Memorial Hospital

🇹🇭

Bangkok, Pathumwan, Thailand

Centrum Medyczne Pratia

🇵🇱

Skorzewo, Poland

Dr. Abdurrahman Yurtaslan Oncology Health Application and Research Center

🇹🇷

Ankara, Turkey

University Hospital Maggiore della Carità

🇮🇹

Novara, Italy

Gaziantep University Sahinbey Research and Application Center Hospital

🇹🇷

Gaziantep, Turkey

Pilgrim Hospital

🇬🇧

Boston, United Kingdom

Inje University Haeundae Paik Hospital

🇰🇷

Busan, Korea, Republic of

Hospital Universitario Central de Asturias

🇪🇸

Oviedo, Asturias, Spain

China Medical University Hospital

🇨🇳

Chiayi City, Taiwan

Pratia Onkologia Katowice

🇵🇱

Katowice, Poland

Antalya Medstar Hospital

🇹🇷

Antalya, Turkey

Erciyes University Faculty of Medicine Hospital

🇹🇷

Kayseri, Turkey

Quirónsalud Madrid University Hospital

🇪🇸

Madrid, Spain

Seoul National University Hospital

🇰🇷

Seoul, Korea, Republic of

Jeonbuk National University Hospital

🇰🇷

Jeonju, Korea, Republic of

Hospital Sultanah Bahiyah

🇲🇾

Alor Setar, Kedah, Malaysia

Vall d'Hebron Institute of Oncology

🇪🇸

Barcelona, Spain

Chulabhorn Hospital

🇹🇭

Bangkok, Lak Si, Thailand

Izmir Ege University Faculty of Medicine Hospital

🇹🇷

İzmir, Turkey

Hospital Clínico Universitario de Valencia

🇪🇸

Valencia, Spain

Edirne Trakya University Faculty of Medicine Hospital

🇹🇷

Edirne, Turkey

Kocaeli University Application

🇹🇷

Kocaeli, Turkey

Franciscan Health/Indiana blood and Marrow Transplantation

🇺🇸

Indianapolis, Indiana, United States

MD Anderson Cancer Center

🇺🇸

Houston, Texas, United States

University of Texas Health Science Center - San Antonio

🇺🇸

San Antonio, Texas, United States

Icahn School of Medicine at Mount Sinai

🇺🇸

New York, New York, United States

Hospital Sultanah Aminah

🇲🇾

Johor Bahru, Johor, Malaysia

Songklanagarind Hospital

🇹🇭

Songkla, Hat Yai District, Thailand

Srinagarind hospital,Khon Kaen University

🇹🇭

Khon Kaen, Mueang Khon Kaen District, Thailand

Mayo Clinic

🇺🇸

Jacksonville, Florida, United States

University Hospital of Wales

🇬🇧

Cardiff, Wales, United Kingdom

Taichung Veterans General Hospital

🇨🇳

Taichung, Taiwan

National Taiwan University Hospital

🇨🇳

Taipei, Taiwan

Rajavithi Hospital

🇹🇭

Bangkok, Ratchathewi District, Thailand

Western General Hospital

🇬🇧

Edinburgh, Scotland, United Kingdom

University of Alabama at Birmingham

🇺🇸

Birmingham, Alabama, United States

Azienda Ospedaliera Universitaria Arcispedale Sant'Anna

🇮🇹

Ferrara, Italy

Mersin University

🇹🇷

Mersin, Turkey

Samsun 19 Mayıs University Health Application Research Hospital

🇹🇷

Samsun, Turkey

Tom Baker Cancer Centre

🇨🇦

Calgary, Alberta, Canada

London Health Sciences Center - Victoria Hospital

🇨🇦

London, Ontario, Canada

Ulsan University Hospital

🇰🇷

Ulsan, Korea, Republic of

Hospital San Pedro de Alcantara

🇪🇸

Caceres, Spain

University Hospital Hamburg-Eppendorf

🇩🇪

Hamburg, Germany

UC San Diego Moores Cancer Center

🇺🇸

La Jolla, California, United States

Yale University School of Medicine

🇺🇸

New Haven, Connecticut, United States

Memorial Sloan Kettering Cancer Center

🇺🇸

New York, New York, United States

Weill Cornell Medical College- New York Presbyterian Hospital

🇺🇸

New York, New York, United States

Washington University

🇺🇸

Saint Louis, Missouri, United States

One Clinical Research PTY LTD

🇦🇺

Nedlands, Australia

Monash Health

🇦🇺

Clayton, Victoria, Australia

USC Clinical Trials Centre Sunshine Coast Haematology and Oncology Clinic

🇦🇺

Buderim, Australia

Jewish General Hospital

🇨🇦

Montréal, Quebec, Canada

Chru Brabois

🇫🇷

Vandœuvre-lès-Nancy, France

University Hospital Olomouc

🇨🇿

Olomouc, Czechia

Chu Pontchaillou - Service Hematologie

🇫🇷

Rennes, France

Hôpital l'Archet 1

🇫🇷

Nice, France

Universitätsklinikum Ulm

🇩🇪

Ulm, Baden-Württemberg, Germany

Universitätsklinikum Halle (Saale), Krukenberg-Krebszentrum Halle (KKH)

🇩🇪

Halle, Sachsen, Germany

Laiko General Hospital

🇬🇷

Athens, Greece

Universitätsklinikum Jena, Klinik für Innere Medizin II

🇩🇪

Jena, Thüringen, Germany

University General Hospital of Patras

🇬🇷

Río, Greece

UGH of Ioannina

🇬🇷

Ioánnina, Greece

Princess Margaret Hospital

🇭🇰

Hong Kong, Kowloon, Hong Kong

Lady Davis Carmel Medical Center

🇮🇱

Haifa, Israel

Soroka Medical Center

🇮🇱

Be'er Sheva, Israel

Rambam Health Corporation

🇮🇱

Haifa, Israel

Szabolcs Szatmár Bereg Megyei Kórházak és Egyetemi Oktatókórház; Jósa András Oktatókórház, Hematológia

🇭🇺

Nyíregyháza, Hungary

Shamir Medical Center

🇮🇱

Be'er Ya'aqov, Israel

Wolfson Medical Center

🇮🇱

H̱olon, Israel

Shaarei Zedek

🇮🇱

Nahariya, Israel

Tel Aviv Sourasky Medical Center

🇮🇱

Tel Aviv, Israel

Rabin Medical Center - Beilinson Campus,

🇮🇱

Petah Tikva, Israel

Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico

🇮🇹

Milano, Italy

Azienda Socio Sanitaria Territoriale Papa Giovanni XXIII

🇮🇹

Bergamo, Italy

A.O.U. Policlinico S. Orsola-Malpighi

🇮🇹

Bologna, Italy

Regional Hospital Spedali Civili di Brescia

🇮🇹

Brescia, Italy

Azienda Ospedaliera Universitaria Careggi

🇮🇹

Florence, Italy

Azienda Ospedaliera San Gerardo di Monza

🇮🇹

Monza, Italy

IRCCS Istituto Romagnolo per lo studio dei tumori "Dino Amadori"

🇮🇹

Meldola, Italy

University Hospital 'Paolo Giaccone' Polyclinic

🇮🇹

Palermo, Italy

Hospital Ordine Mauriziano of Turin

🇮🇹

Turin, Italy

University Hospital of Padova

🇮🇹

Padova, Italy

Ospedale Sant'Eugenio

🇮🇹

Rome, Italy

Pusan National University Hospital

🇰🇷

Busan, Korea, Republic of

Gyeongsang National University Hospital

🇰🇷

Jinju-si, Gyeongsangnam-do, Korea, Republic of

Ospedale di Circolo e Fondazione Macchi - ASST Sette Laghi

🇮🇹

Varese, Italy

Inje University Busan Paik Hospital

🇰🇷

Busan, Korea, Republic of

Kyungpook National University Hospital

🇰🇷

Daegu, Korea, Republic of

The Catholic University Of Korea St. Vincent Hospital

🇰🇷

Gyeonggi-do, Korea, Republic of

Gachon University Gil Medical Center

🇰🇷

Incheon, Korea, Republic of

The Clatterbridge Cancer Centre

🇬🇧

Liverpool, United Kingdom

Hospital Universitario de Salamanc

🇪🇸

Salamanca, Spain

University College London Hospitals

🇬🇧

London, United Kingdom

Daegu Catholic University Medical Center

🇰🇷

Daegu, Korea, Republic of

University of Alberta Hospital

🇨🇦

Edmonton, Alberta, Canada

University of Michigan Medical Center

🇺🇸

Ann Arbor, Michigan, United States

Moffitt Cancer Center

🇺🇸

Tampa, Florida, United States

Norton Cancer Institute, St. Matthews Campus

🇺🇸

Louisville, Kentucky, United States

Amiens South Hospital univerisy - Hopital Sud

🇫🇷

Amiens, France

Hämatologisch-Onkologische Praxis Augsburg

🇩🇪

Augsburg, Bayern, Germany

Hadassah University Hospital-Ein Kerem

🇮🇱

Jerusalem, Israel

Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust

🇬🇧

Cambridge, United Kingdom

Oxford University Hospitals NHS Foundation Trust, Department of Haematology, Cancer and Haematology Centre, Churchill Hospital

🇬🇧

Oxford, United Kingdom

Guy's & St Thomas NHS Foundation Trust

🇬🇧

London, United Kingdom

Imperial College Healthcare NHS Trust, Hammersmith Hospital

🇬🇧

London, United Kingdom

Prince of Wales Hospital

🇭🇰

Hong Kong, New Territories, Hong Kong

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