MedPath

Vadastuximab Talirine (SGN-CD33A; 33A) Combined With Azacitidine or Decitabine in Older Patients With Newly Diagnosed Acute Myeloid Leukemia

Phase 3
Terminated
Conditions
Acute Myeloid Leukemia
Interventions
Registration Number
NCT02785900
Lead Sponsor
Seagen Inc.
Brief Summary

The purpose of this study in AML patients is to test whether vadastuximab talirine (SGN-CD33A; 33A) combined with either azacitidine or decitabine improves remission rates and extends overall survival as compared to placebo combined with either azacitidine or decitabine.

Detailed Description

Hypomethylating agents (HMAs), such as decitabine or azacitidine, are considered a standard treatment for older patients with AML. The primary goals of this study are to test whether patients treated with an HMA (either decitabine or azacitidine) in combination with 33A will have better anti-tumor activity and/or survive longer than patients treated with an HMA in combination with placebo.

Patients who meet eligibility criteria will be randomly assigned to one of two treatment groups: 1) 33A plus HMA (Experimental Arm); or 2) placebo plus HMA (Comparator Arm). In addition to evaluating survival and remission rates, the minimal residual disease (MRD)-negative remission rate, duration of remission, event free- and leukemia-free survival, and safety and tolerability will be compared between arms.

Recruitment & Eligibility

Status
TERMINATED
Sex
All
Target Recruitment
240
Inclusion Criteria
  • Newly diagnosed, previously untreated, cytologically/histologically confirmed de novo or secondary AML according to World Health Organization (WHO) classification (except for acute promyelocytic leukemia (APL))
  • Intermediate or adverse cytogenetic risk
  • Eligible for therapy with either decitabine or azacitidine
  • Acceptable hematologic and organ function
Exclusion Criteria
  • AML associated with favorable risk karyotypes including inv(16), t(8;21), t(16;16), or t(15;17)
  • Patients who are candidates for allogeneic stem cell transplant at the time of enrollment
  • Patients with a history of one of the following myeloproliferative neoplasms: essential thrombocythemia, polycythemia vera, and primary myelofibrosis
  • Received prior treatment with HMA or chemotherapy for antecedent myelodysplastic syndrome (MDS)

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
33A + HMA33A33A plus azacitidine or decitabine
33A + HMAdecitabine33A plus azacitidine or decitabine
placebo + HMAplaceboplacebo plus azacitidine or decitabine
33A + HMAazacitidine33A plus azacitidine or decitabine
placebo + HMAazacitidineplacebo plus azacitidine or decitabine
placebo + HMAdecitabineplacebo plus azacitidine or decitabine
Primary Outcome Measures
NameTimeMethod
Overall SurvivalUp to 1.5 years

Time from randomization to death due to any cause

Composite Complete Remission (CRc) RateUp to 1.5 years

Number of patients who achieved complete remission (CR) or complete remission with incomplete blood count recovery (CRi) according to the modified response criteria for acute myeloid leukemia (AML) per Cheson 2003.

Secondary Outcome Measures
NameTimeMethod
Minimal Residual Disease (MRD)-Negative Composite Complete Remission RateUp to 1.5 years

Number of patients who achieve both remission (CR or CRi) and MRD-negative status

Event-free SurvivalUp to approximately 11.24 months

Event-free survival is calculated from the time of randomization to the first documentation of progression, relapse, or death, whichever comes first. Patients who do not have event (progression, relapse, or death) prior to analysis cutoff date are censored at the date of last response assessment. Patients who started another anticancer therapy before progression, relapse, or death are censored at the date of last response assessment prior to the start of new therapy. Patients who do not have response assessment post-baseline are censored at the date of randomization.

Duration of RemissionUp to approximately 9.5 months

Duration of remission is calculated from the first documentation of CR or CRi to the first documentation of disease relapse or death, whichever comes first. Patients who are in remission at the time of analysis cutoff are censored at the date of last response assessment. Patients who started another anticancer therapy before relapse or death are censored at the date of last response assessment prior to start of new therapy.

Leukemia-free SurvivalUp to approximately 9.49 months

Leukemia-free survival is calculated from the first documentation of blast clearance (CR, CRi, mLFS) to the first documentation of disease relapse or death, whichever comes first. Patients who are in remission at the time of analysis cutoff are censored at the date of last response assessment. Patients who started another anticancer therapy before relapse or death are censored at the date of last response assessment prior to start of new therapy.

Incidence of Grade 3 or Higher Laboratory AbnormalitiesUp to 1.5 years

Participants who experienced a laboratory grade increase to Grade 3 or higher (per National Cancer Institute's Common Terminology Criteria for Adverse Events \[NCI CTCAE\], v4.03)

Time to Complete RemissionUp to 1.5 years

Time to CR or CRi is the time from randomization to the first documentation of CR/CRi

Type, Incidence, Severity, Seriousness, and Relatedness of Adverse EventsUp to 1.5 years

Treatment-emergent adverse events (TEAEs) are presented and defined as newly occurring (not present at baseline) or worsening after first dose of investigational product. SAE = serious adverse event. "Study treatment" in this data set refers to blinded study treatment.

Mortality Rates at Day 30 and Day 60Up to 60 days

30- and 60-day survival from date of randomization. Estimated using Kaplan-Meier method.

Trial Locations

Locations (128)

University of Kansas Cancer Center

🇺🇸

Westwood, Kansas, United States

LSU Health Sciences Center / Feist Weiller Cancer Center

🇺🇸

Shreveport, Louisiana, United States

Rush University Medical Center

🇺🇸

Chicago, Illinois, United States

University of Chicago

🇺🇸

Chicago, Illinois, United States

Florida Cancer Specialists - South Region

🇺🇸

Fort Myers, Florida, United States

Florida Cancer Specialists - North Region

🇺🇸

Saint Petersburg, Florida, United States

Northside Hospital

🇺🇸

Atlanta, Georgia, United States

Norton Cancer Institute

🇺🇸

Louisville, Kentucky, United States

Colorado Blood Cancer Institute

🇺🇸

Denver, Colorado, United States

Hackensack University Medical Center

🇺🇸

Hackensack, New Jersey, United States

University of Michigan Comprehensive Cancer Center

🇺🇸

Ann Arbor, Michigan, United States

Sarah Cannon Research Institute

🇺🇸

Nashville, Tennessee, United States

Intermountain Blood and Marrow Transplant/Acute Leukemia Program

🇺🇸

Salt Lake City, Utah, United States

University of Virginia

🇺🇸

Charlottesville, Virginia, United States

Semmelweis Egyetem

🇭🇺

Budapest, Hungary

LKH Salzburg, Universitatsklinikum der PMU

🇦🇹

Salzburg, Austria

CHRU de Lille

🇫🇷

Lille cedex, France

Centre Hospitalier Universitaire Sart Tilman Liege

🇧🇪

Liege, Belgium

Saint Francis Hospital / Bon Secours

🇺🇸

Greenville, South Carolina, United States

Ziekenhuis Netwerk Antwerpen Campus Stuivenberg

🇧🇪

Antwerpen, Belgium

Royal Adelaide Hospital

🇦🇺

Adelaide, Australia

Klinikum Wels-Grieskirchen GmbH

🇦🇹

Wels, Austria

Medical University of South Carolina/Hollings Cancer Center

🇺🇸

Charleston, South Carolina, United States

Keimyung University Dongsan Medical Center

🇰🇷

Daegu, Korea, Republic of

Universitatsklinikum Koln

🇩🇪

Köln, Germany

Azienda Ospedaliero-Univesitaria San Luigi Gonzaga

🇮🇹

Orbassano, Italy

Edith Wolfson Medical Center

🇮🇱

Holon, Israel

Chungnam National University Hospital

🇰🇷

Daejeon, Korea, Republic of

Fakultni nemocnice Brno

🇨🇿

Brno, Czechia

Universitatsklinikum Schleswig-Holstein

🇩🇪

Kiel, Germany

Szegedi Tudomanyegyetem Szent-Gyorgyi Albert Klinikat Kozpont

🇭🇺

Szeged, Hungary

IRCCS Ospedale San Raffaele

🇮🇹

Milano, Italy

Seoul National University Hospital

🇰🇷

Jongno-gu, Korea, Republic of

Yeungnam University Medical Center

🇰🇷

Daegu, Korea, Republic of

Hospital San Pedro de Alcantara

🇪🇸

Caceres, Spain

Severance Hospital, Yonsei University Health System

🇰🇷

Seoul, Korea, Republic of

Hospital Universitari i Politecnic La Fe de Valencia

🇪🇸

Valencia, Spain

North West London Hospitals NHS Trust

🇬🇧

Middlesex, United Kingdom

Korea University Guro Hospital

🇰🇷

Seoul, Korea, Republic of

Chonnam National University Hwasun Hospital

🇰🇷

Hwasun, Korea, Republic of

Hospital Universitaro de Salamanca

🇪🇸

Salamanca, Spain

National Cheng-Kung University Hospital

🇨🇳

Tainan, Taiwan

Marien Hospital Dusseldorf GmbH

🇩🇪

Dusseldorf, Germany

Chonbuk National University Hospital

🇰🇷

Jeonju-si, Korea, Republic of

Azienda Ospedaliera Ospedali Riuniti Marche Nord

🇮🇹

Pesaro, Italy

Hadassah Medical Center

🇮🇱

Jerusalem, Israel

Taipei Veterans General Hospital

🇨🇳

Taipei, Taiwan

Changhua Christian Hospital

🇨🇳

Changhua, Taiwan

Center for Cancer and Blood Disorders

🇺🇸

Bethesda, Maryland, United States

SPZOZ Szpital Uniwersytecki w Krakowie

🇵🇱

Krakow, Poland

Samodzielny Publiczny Centralny Szpital Kliniczny

🇵🇱

Warszawa, Poland

Memorial Cancer Institute

🇺🇸

Miami, Florida, United States

Tufts Medical Center

🇺🇸

Boston, Massachusetts, United States

Massachusetts General Hospital

🇺🇸

Boston, Massachusetts, United States

Beth Israel Deaconess Medical Center

🇺🇸

Boston, Massachusetts, United States

Dana Farber Cancer Institute

🇺🇸

Boston, Massachusetts, United States

Duke University Medical Center

🇺🇸

Durham, North Carolina, United States

MD Anderson Cancer Center / University of Texas

🇺🇸

Houston, Texas, United States

Brooke Army Medical Center

🇺🇸

San Antonio, Texas, United States

Texas Oncology - San Antonio Medical Center

🇺🇸

San Antonio, Texas, United States

Swedish Cancer Institute

🇺🇸

Seattle, Washington, United States

Università degli Studi di Roma "La Sapienza, Policlinico Umberto I

🇮🇹

Roma, Italy

City of Hope National Medical Center

🇺🇸

Duarte, California, United States

Centre Hospitalier Luxembourg - CHL Centre

🇱🇺

Luxembourg, Luxembourg

County Durham and Darlington NHS Foundation Trust

🇬🇧

Darlington, United Kingdom

Imperial College Healthcare NHS Trust

🇬🇧

London, United Kingdom

University Hospital Southampton NHS Foundation Trust

🇬🇧

Southampton, United Kingdom

Debreceni Egyetem Orvos és Egeszsegtudomanyi Centrum, III. sz. Belgyogyaszati Klinika

🇭🇺

Debrecen, Hungary

University of Arkansas for Medical Sciences

🇺🇸

Little Rock, Arkansas, United States

Pacific Hematology Oncology Associates

🇺🇸

San Francisco, California, United States

Shands Cancer Center / University of Florida

🇺🇸

Gainesville, Florida, United States

Florida Center for Cellular Therapy / Blood and Marrow Transplant Center

🇺🇸

Orlando, Florida, United States

OnCare Hawaii

🇺🇸

Honolulu, Hawaii, United States

Washington University School of Medicine

🇺🇸

Saint Louis, Missouri, United States

James P. Wilmot Cancer Center / University of Rochester Medical Center

🇺🇸

Rochester, New York, United States

Roswell Park Cancer Institute

🇺🇸

Buffalo, New York, United States

Providence Portland Medical Center

🇺🇸

Portland, Oregon, United States

University of Pennsylvania

🇺🇸

Philadelphia, Pennsylvania, United States

Virginia Commonwealth University Medical Center

🇺🇸

Richmond, Virginia, United States

St George Hospital

🇦🇺

Kogarah, Australia

Royal Perth Hospital

🇦🇺

Perth, Australia

Monash Medical Centre

🇦🇺

Clayton, Australia

Sunshine Hospital

🇦🇺

St Albans, Australia

Institut Jules Bordet

🇧🇪

Bruxelles, Belgium

Cliniques Universitaires Saint Luc

🇧🇪

Brussels, Belgium

Az Sint-Jane Brugge - Oostende Av - Campus Sint-Jan

🇧🇪

Brugge, Belgium

Fakultni nemocnice Hradec Kralove-oddeleni klinicke hematologie

🇨🇿

Hradec Kralove, Czechia

Cliniques Universitaires UCL de Mont-Goddine

🇧🇪

Yvoir, Belgium

AZ Delta - Campus Wilgenstraat

🇧🇪

Roeselare, Belgium

Ustav hematologie a krevni transfuze

🇨🇿

Praha 2, Czechia

Fakultni Nemocnice Ostrava

🇨🇿

Ostrava - Poruba, Czechia

Centre Hospitalier Victor Dupouy d'Argenteuil

🇫🇷

Argenteuil Cedex, France

Center Hospitalier Universitaire d' Angers

🇫🇷

Angers Cedex 9, France

CHU Amiens Picardie - Site Sud

🇫🇷

Amiens Cedex 1, France

Centre Hospitalier Universitaire Hopital Avicenne

🇫🇷

Bobigny Cedex, France

Hopital d'Instruction des Armees - Percy

🇫🇷

Clamart Cedex, France

Centre Hospitalier Universitaire (CHU) De Limoges - Hopital Dupuytren

🇫🇷

Limoges Cedex, France

Hopital Emile Muller

🇫🇷

Mulhouse Cedex, France

Centre Hospitalier Universitaire Nantes-Hotel Dieu

🇫🇷

Nantes cedex 1, France

Hopital Saint-Louis / Service d'Hematologie

🇫🇷

Paris Cedex 10, France

CHU de Nice - Hopital l'Archet

🇫🇷

Nice, France

CHU Bordeaux Hopital Haut-Levaque

🇫🇷

Pessac Cedex, France

Centre Hospitalier Lyon Sud

🇫🇷

Pierre Bénite Cedex, France

Somogy Megyei Kaposi Mór Oktató Kórház

🇭🇺

Kaposvár, Hungary

Centre Hospitalier Universitaire de Poitiers

🇫🇷

Poitiers Cedex, France

Universitatsklinik Freiburg

🇩🇪

Freiburg, Germany

Centre Hospitalier Universitaire de Rennes, Hopital Pontchaillou

🇫🇷

Rennes Cedex 9, France

Stadtisches Klinikum Braunschweig gGmbH

🇩🇪

Braunschweig, Germany

Bacs-Kiskun Megyei Korhaz Szegedi Tudomanyegyetem Altalanos Orvostudomanyi Kar Oktato Korhaza

🇭🇺

Kecskemet, Hungary

Carmel Medical Center

🇮🇱

Haifa, Israel

Barzilai Medical Center

🇮🇱

Ashkelon, Israel

Soroka Medical Center, Dept. of Oncology

🇮🇱

Beer Sheva, Israel

Shaare Zedek Medical Center

🇮🇱

Jerusalem, Israel

Rabin Medical Center

🇮🇱

Petach Tikva, Israel

Tel Aviv Sourasky Medical Center

🇮🇱

Tel Aviv, Israel

Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico

🇮🇹

Milano, Italy

Seoul Saint Mary's Hospital

🇰🇷

Seoul, Korea, Republic of

Samsung Medical Center

🇰🇷

Seoul, Korea, Republic of

Hospital Universitario Vall d'Hebron

🇪🇸

Barcelona, Spain

Hospital Universitari Germans Trias i Pujol

🇪🇸

Badalona, Spain

Hospital de la Santa Creu i Sant Paul

🇪🇸

Barcelona, Spain

Hospital Universitario de Girona Doctor Josep Trueta

🇪🇸

Girona, Spain

Hospital Universitario Ramon y Cajal

🇪🇸

Madrid, Spain

Hospital Universitario Virgen de la Victoria

🇪🇸

Malaga, Spain

The Newcastle upon Tyne Hospitals NHS Foundation Trust

🇬🇧

Newcastle Upon Tyne, United Kingdom

University Hospitals of North Midlands NHS Trust

🇬🇧

Stoke on Trent, United Kingdom

National Taiwan University Hospital

🇨🇳

Taipei, Taiwan

Rhode Island Hospital

🇺🇸

Providence, Rhode Island, United States

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