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Phase 3 Randomized, Open-Label Study of Guadecitabine vs Treatment Choice in Previously Treated Acute Myeloid Leukemia

Phase 3
Completed
Conditions
Acute Myeloid Leukemia
Interventions
Drug: Treatment Choice (TC)
Registration Number
NCT02920008
Lead Sponsor
Astex Pharmaceuticals, Inc.
Brief Summary

Multicenter, randomized, open-label, parallel-group study of guadecitabine vs treatment choice (TC). Participants will be randomly assigned in a 1:1 ratio to either guadecitabine or TC. TC options include the 8 high or low intensity, locally available regimens below; or Best supportive Care (BSC) alone:

* High intensity (intermediate or high dose cytarabine \[HiDAC\]; mitoxantrone, etoposide, and cytarabine \[MEC\]; or fludarabine, cytarabine, granulocyte colony stimulating factor \[G-CSF\], +/- idarubicin \[FLAG/FLAG-Ida\]).

* Low intensity (low dose cytarabine \[LDAC\], decitabine, or azacitidine).

* BSC.

Detailed Description

This Phase 3, randomized, open-label, parallel-group multicenter study of the efficacy and safety of guadecitabine in adults with previously treated acute myeloid leukemia (AML) will be conducted in approximately 20 countries. There will be a 14-day screening period, a treatment period, a safety follow-up visit, and a long-term follow-up period. The study is expected to last approximately 2 years. Duration of individual participant participation will vary, and participants may continue to receive treatment for as long as they continue to benefit.

Approximately 404 participants from approximately 100 study centers will be randomly assigned to either guadecitabine or treatment choice (TC) in a 1:1 ratio (approximately 202 participants per group). TC is as follows:

* High intensity: intermediate or high dose cytarabine (HiDAC); mitoxantrone, etoposide, and cytarabine (MEC); or fludarabine, cytarabine, G-CSF, +/- idarubicin (FLAG/FLAG-Ida).

* Low intensity: low dose cytarabine (LDAC), decitabine, or azacitidine.

* Best Supportive Care (BSC).

Guadecitabine will be given subcutaneous (SC) at a dose of 60 microgram per meter square (mg/m\^2) in 28-day cycles. In Cycle 1, guadecitabine will be given for 10 days on Days 1-5 and Days 8-12. Cycle 2 will be either the 5-day regimen (Days 1-5) or 10-day regimen (Days 1-5 and 8-12) based on assessment of disease response and hematologic recovery at the end of Cycle 1. In subsequent cycles, guadecitabine treatment will be for 5 days only (Days 1-5).

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
302
Inclusion Criteria
  1. Adult participants ≥18 years of age who are able to understand study procedures, comply with them, and provide written informed consent before any study-specific procedure.
  2. History of cytologically or histologically confirmed diagnosis of AML (except acute promyelocytic leukemia) according to the 2008 World Health Organization (WHO) classification (bone marrow [BM] or peripheral blood [PB] blast counts ≥20%).
  3. Performance status (Eastern Cooperative Oncology Group; ECOG) of 0-2.
  4. Participants with AML previously treated with initial induction therapy using a standard intensive chemotherapy regimen, including cytarabine and an anthracycline, and who are refractory to initial induction (primary refractory) or in relapse after such initial induction with or without prior HCT.
  5. Participants must have either PB or BM blasts ≥5% at time of randomization.
  6. Creatinine clearance or glomerular filtration rate ≥30 mL/min as estimated by the Cockroft-Gault (C-G) or other medically acceptable formulas, such as MDRD (Modification of Diet in Renal Disease) or CKD-EPI (the Chronic Kidney Disease Epidemiology Collaboration).
  7. Women of child-bearing potential must not be pregnant or breastfeeding and must have a negative pregnancy test at screening. Women of child-bearing potential and men with female partners of child-bearing potential must agree to practice 2 highly effective contraceptive measures of birth control and must agree not to become pregnant or father a child (a) while receiving treatment of guadecitabine, decitabine, or azacitidine and for at least 3 months after completing treatment and (b) while receiving treatment with high-intensity TC or LDAC and for at least 6 months after completing treatment.
Exclusion Criteria
  1. Known clinically active central nervous system (CNS) or extramedullary AML, except leukemia cutis.
  2. Participants who are in first relapse after initial induction, if they had a response duration of >12 months from date when first response first documented or if they are good candidates for HCT.
  3. BCR-ABL-positive leukemia (chronic myelogenous leukemia in blast crisis).
  4. Second malignancy currently requiring active therapy, except breast or prostate cancer stable on or responding to endocrine therapy.
  5. Grade 3 or higher Graft Versus Host Disease (GVHD), or GVHD on either a calcineurin inhibitor or prednisone more than 5 mg/day.
  6. Prior treatment with guadecitabine for any indication, or more than 2 cycles of prior decitabine or azacitidine.
  7. Hypersensitivity to decitabine, guadecitabine, or any of their excipients.
  8. Treated with any investigational therapy within 2 weeks of the first dose of study treatment.
  9. Total serum bilirubin >2.5 × upper limit of normal (ULN; except for participants with Gilbert's Syndrome for whom direct bilirubin is <2.5 × ULN), or liver cirrhosis, or chronic liver disease Child-Pugh Class B or C.
  10. Known active human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) infection. Inactive hepatitis carrier status or low viral hepatitis titer on antivirals is allowed.
  11. Known significant mental illness or other condition such as active alcohol or other substance abuse or addiction that, in the opinion of the investigator, predisposes the participant to high risk of noncompliance with the protocol.
  12. Refractory congestive heart failure unresponsive to medical treatment; active infection resistant to all antibiotics; or non-AML-associated pulmonary disease requiring >2 liters per minute (LPM) oxygen, or any other condition that puts the participant at an imminent risk of death.
  13. Participants with high PB blasts >50% AND poor ECOG PS of 2.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
guadecitabineguadecitabineGuadecitabine will be given SC at a dose of 60 mg/m\^2 in 28-day cycles (delayed as necessary to allow blood count recovery).
Treatment Choice (TC)Treatment Choice (TC)1. High intensity 2. Low intensity 3. Best supportive care (BSC).
Primary Outcome Measures
NameTimeMethod
Overall SurvivalFrom the date of randomization until the date of death, or approximately 34 months

Overall survival is defined as number of days from day of randomization to date of death, regardless of cause.

Secondary Outcome Measures
NameTimeMethod
Number of Days Alive and Out of the Hospital (NDAOH)6 months

Number of days participants alive and out of hospital during first 6 months of the study.

Event-Free SurvivalFrom the date of randomization until the date of death, or approximately 38 months

Event-free survival is defined as number of days from randomization to earliest date of treatment discontinuation (for reasons other than initiation of hematopoietic cell transplant \[HCT\]), start of alternative anti-leukemia therapy (except HCT), or death.

Long-Term SurvivalUp to approximately 38 months

Survival rate at 1 year after randomization; participants were also followed to estimate 2-year survival rate.

Transfusion Independence RateBaseline up to approximately 38 months

Number of participants without red blood cells (RBC) or platelet transfusion for any 8-week period after treatment divided by total number of participants in efficacy analysis.

Composite Complete Response RateBaseline to end of treatment, or approximately 38 months

Composite complete response rate based on modified IWG 2003 AML Response Criteria defined as number of participants with best response of CR, CR with incomplete platelet recovery (CRp), or CR with incomplete blood count recovery (CRi) divided by total number of participants in efficacy analysis. CR as per modified 2003 IWG AML Response Criteria is ANC ≥1000/μL, platelets ≥100,000/μL, independence from RBC and platelet transfusions over the past week, no leukemic blasts in peripheral blood and bone marrow should contain less than 5% blast cells. CRp is defined as ANC ≥1000/μL, Platelets \<100,000/μL, independence from RBC transfusions over the past week, no leukemic blasts and bone marrow should contain less than 5% blast cells. CRi is defined as ANC \<1000/μL, no leukemic blasts and bone marrow should contain less than 5% blast cells.

Complete Response RateBaseline to end of treatment, or approximately 38 months

The Complete response (CR) rate based on modified International Working Group (IWG) 2003 AML Response Criteria was calculated as the number of participants with a best response of CR divided by the total number of participants included in the efficacy analysis. CR as per modified 2003 IWG AML Response Criteria is absolute neutrophil count (ANC) ≥1000/μL, platelets ≥100,000/μL, independence from red blood cells (RBC) and platelet transfusions over the past week, no leukemic blasts in peripheral blood and bone marrow should contain less than 5% blast cells.

Hematopoietic Cell Transplant (HCT) RateBaseline to long term follow-up or approximately 38 months

Number of participants who received HCT after randomization divided by total number of participants in efficacy analysis.

Duration of Complete Response (CR) + CR With Partial Hematologic Recovery (CRh)Baseline to end of treatment, or approximately 38 months

The time from first CR or CRh to time of relapse (the date of the earliest of the following 3 events):

1. relapse (defined as the earliest time point whereby BM assessment or PB assessment by the investigator indicate relapse/disease progression due to confirmed reappearance of leukemic blasts in PB or ≥5% leukemic blasts in BM, or clinical progression determined by the investigator),

2. start of alternative therapy (except HCT) or

3. death.

Change From Baseline in EuroQoL-5 Dimension 5 Level (EQ-5D-5L) Index ScoresBaseline to 6 months

Index score is calculated based on 5-level version of the EQ-5D descriptive system using the value set for England.

The range of index score is from -0.281 (for the worst health state, score of 5 for all categories) to 1 (for the best health state, score of 1 for all categories).

Change in EQ-5D-5L Visual Analogue Scale (VAS) ScoreBaseline to 6 months

VAS score is obtained using vertical 20-cm visual analogue scale with the top value of 100 labelled as 'the best health you can imagine' and the bottom value of 0 labelled as 'the worst health you can imagine'.

Percentage of Participants With Adverse Events (AEs)From first dose until 30 days after the last dose of study drug, or approximately 38 months

An AE is any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related. An AE can therefore be any unfavorable and unintended sign (including a clinically significant abnormal finding in laboratory tests or other diagnostic procedures), symptom, or disease temporally associated with the use of a drug, without any judgment about causality.

Combined Complete Response and Complete Response With Partial Hematologic Recovery RateBaseline to end of treatment, or approximately 38 months

The combined CR and CR with partial hematologic recovery rate based on modified International Working Group (IWG) 2003 AML Response Criteria was calculated as number of participants with CR and CR with partial hematologic recovery divided by the total number of participants included in the efficacy analysis. CR as per modified 2003 IWG AML Response Criteria is absolute neutrophil count (ANC) ≥1000/μL, platelets ≥100,000/μL, independence from red blood cells (RBC) and platelet transfusions over the past week, no leukemic blasts in peripheral blood and bone marrow should contain less than 5% blast cells.

All-Cause MortalityFrom the first dose until 60 days after the first dose of study drug

All-cause mortality in the first 30 days and first 60 days after the start of treatment divided by the total number of participants receiving at least one dose of study treatment.

Trial Locations

Locations (95)

University of Southern California

🇺🇸

Los Angeles, California, United States

Sahlgrenska University Hospital

🇸🇪

Göteborg, Sweden

Heart of England NHS Foundation Trust - Heartlands Hospital

🇬🇧

Birmingham, United Kingdom

Hospital San Pedro de Alcántara

🇪🇸

Cáceres, Spain

Poltava Regional Clinical Hospital named after M. V. Sklifosovskoho

🇺🇦

Poltava, Ukraine

Vall d'Hebron Institut d'Oncologia

🇪🇸

Barcelona, Spain

Hospital Universitario Dr. Peset

🇪🇸

Valencia, Spain

St. James's University Hospital

🇬🇧

Leeds, United Kingdom

Hospital Duran i Reynals

🇪🇸

Barcelona, Spain

Hospital Universitario Central de Asturias

🇪🇸

Oviedo, Spain

Hospital Universitario Virgen del Rocío

🇪🇸

Sevilla, Spain

University Hospitals Bristol NHS Foundation Trust - Bristol Haematology and Oncology Centre

🇬🇧

Bristol, United Kingdom

Duke Cancer Institute

🇺🇸

Durham, North Carolina, United States

Khmelnytskyi Regional Hospital

🇺🇦

Khmelnytskyi, Ukraine

Aarhus University Hospital

🇩🇰

Aarhus C, Denmark

Hospital General Universitario Gregorio Marañón

🇪🇸

Madrid, Spain

Hospital Universitario Reina Sofía

🇪🇸

Córdoba, Spain

Hospital Universitari i Politècnic La Fe

🇪🇸

Valencia, Spain

The University of Chicago Medical Center

🇺🇸

Chicago, Illinois, United States

Franciscan Research Center

🇺🇸

Indianapolis, Indiana, United States

University of New Mexico School of Medicine

🇺🇸

Albuquerque, New Mexico, United States

John Theurer Cancer Center at Hackensack University Medical Center

🇺🇸

Hackensack, New Jersey, United States

Roswell Park Cancer Institute

🇺🇸

Buffalo, New York, United States

Weill Cornell Medical College

🇺🇸

New York, New York, United States

Hospital of the University of Pennsylvania

🇺🇸

Philadelphia, Pennsylvania, United States

MD Anderson Cancer Center

🇺🇸

Houston, Texas, United States

Temple University Hospital

🇺🇸

Philadelphia, Pennsylvania, United States

Vanderbilt University Medical Center

🇺🇸

Nashville, Tennessee, United States

West Virginia University Hospitals, Inc.

🇺🇸

Morgantown, West Virginia, United States

Cliniques Universitaires Saint-Luc

🇧🇪

Brussels, Belgium

Baylor Research Institute

🇺🇸

Dallas, Texas, United States

AZ Sint-Jan Brugge-Oostende AV

🇧🇪

Brugge, Belgium

Universitair Ziekenhuis Gent

🇧🇪

Gent, Belgium

University of Alberta Hospital

🇨🇦

Edmonton, Alberta, Canada

Tom Baker Cancer Centre

🇨🇦

Calgary, Alberta, Canada

Princess Margaret Cancer Centre

🇨🇦

Toronto, Ontario, Canada

Centre Hospitalier de la Côte Basque

🇫🇷

Bayonne, France

McGill University Health Centre

🇨🇦

Montreal, Quebec, Canada

Hopital Maisonneuve Rosemont

🇨🇦

Montreal, Canada

Hôpital de la Conception

🇫🇷

Marseille, France

CHRU Montpellier - Saint Eloi

🇫🇷

Montpellier, France

Hôpital Saint-Louis

🇫🇷

Paris, France

Groupe Hospitalier de la Région de Mulhouse et Sud Alsace

🇫🇷

Mulhouse, France

CHU Hopitaux de Bordeaux - Hôpital Haut-Lévêque

🇫🇷

Pessac, France

Centre Hospitalier Lyon-Sud

🇫🇷

Pierre Bénite, France

Debreceni Egyetem Klinikai Központ

🇭🇺

Debrecen, Hungary

Institut Universitaire du Cancer de Toulouse - Oncopole

🇫🇷

Toulouse, France

Universitätsklinikum Leipzig

🇩🇪

Leipzig, Sachsen, Germany

Centre Henri Becquerel

🇫🇷

Rouen cedex 1, France

Städtisches Klinikum Braunschweig gGmbH

🇩🇪

Braunschweig, Germany

Universitätsklinikum Halle (Saale)

🇩🇪

Halle, Germany

Marien Hospital Düsseldorf GmbH

🇩🇪

Düsseldorf, Germany

Universitätsklinikum Schleswig-Holstein

🇩🇪

Kiel, Germany

SE ÁOK I. sz. Belgyógyászati Klinika

🇭🇺

Budapest, Hungary

Klinikum der Universität München

🇩🇪

Muenchen, Germany

Universitätsklinikum Ulm

🇩🇪

Ulm, Germany

Somogy Megyei Kaposi Mór Oktató Kórház

🇭🇺

Kaposvar, Hungary

Szegedi Tudományegyetem

🇭🇺

Szeged, Hungary

Pecsi Tudomanyegyetem Klinikai Központ

🇭🇺

Pécs, Hungary

IRCCS AOU San Martino - IST

🇮🇹

Genova, Italy

Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico

🇮🇹

Milano, Italy

Ospedale San Raffaele - Milano

🇮🇹

Milano, Italy

A.O.R.N. "A. Cardarelli"

🇮🇹

Napoli, Italy

A.S.U Integrata di Udine - Presidio Ospedaliero Santa Maria della Misericordia

🇮🇹

Udine, Italy

Akita University Hospital

🇯🇵

Akita-shi, Japan

Chugoku Central Hospital

🇯🇵

Fukuyama-Shi, Japan

Tokai University Hospital

🇯🇵

Isehara-shi, Japan

Kobe City Medical Center General Hospital

🇯🇵

Kobe-shi, Japan

Saitama Medical Center

🇯🇵

Kawagoe-Shi, Japan

Japanese Red Cross Kyoto Daini Hospital

🇯🇵

Kyoto-shi, Japan

University Hospital, Kyoto Prefectural University of Medicine

🇯🇵

Kyoto-shi, Japan

Gunmaken Saiseikai Maebashi Hospital

🇯🇵

Maebashi-shi, Japan

Nagasaki University Hospital

🇯🇵

Nagasaki-shi, Japan

NTT Medical Center Tokyo

🇯🇵

Shinagawa-Ku, Japan

Kindai University Hospital

🇯🇵

Osakasayama-Shi, Japan

The Japanese Red Cross Nagasaki Genbaku Hospital

🇯🇵

Nagasaki-Shi, Japan

Saga University Hospital

🇯🇵

Saga-shi, Japan

Shizuoka Cancer Center

🇯🇵

Shizuoka, Japan

National Hospital Organization Disaster Medical Center

🇯🇵

Tachikawa-Shi, Japan

Yamagata University Hospital

🇯🇵

Yamagata-Shi, Japan

University of Fukui Hospital

🇯🇵

Yoshida-Gun, Japan

Pusan National University Hospital

🇰🇷

Busan, Korea, Republic of

Severance Hospital

🇰🇷

Seoul, Korea, Republic of

Seoul National University Hospital

🇰🇷

Seoul, Korea, Republic of

Samsung Medical Center

🇰🇷

Seoul, Korea, Republic of

Instytut Hematologii i Transfuzjologi

🇵🇱

Warszawa, Poland

Hospital de la Santa Creu i Sant Pau

🇪🇸

Barcelona, Spain

Hospital Clínic de Barcelona

🇪🇸

Barcelona, Spain

East Kent Hospitals University NHS Foundation Trust - Kent and Canterbury Hospital

🇬🇧

Canterbury, United Kingdom

Medizinischen Fakultät Mannheim der Universität Heidelberg

🇩🇪

Mannheim, Germany

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

🇰🇷

Seoul, Korea, Republic of

Rigshospitalet

🇩🇰

Copenhagen, Denmark

Ulsan University Hospital (UUH)

🇰🇷

Ulsan, Korea, Republic of

Asan Medical Center

🇰🇷

Seoul, Korea, Republic of

University of Oklahoma Medical Center

🇺🇸

Oklahoma City, Oklahoma, United States

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