MedPath

Venetoclax in Children With Relapsed Acute Myeloid Leukemia (AML)

Phase 3
Recruiting
Conditions
Acute Myeloid Leukemia
Interventions
Registration Number
NCT05183035
Lead Sponsor
LLS PedAL Initiative, LLC
Brief Summary

A study to evaluate if the randomized addition of venetoclax to a chemotherapy backbone (fludarabine/cytarabine/gemtuzumab ozogamicin \[GO\]) improves survival of children/adolescents/young adults with acute myeloid leukemia (AML) in 1st relapse who are unable to receive additional anthracyclines, or in 2nd relapse.

Detailed Description

Relapse of AML is driven by chemotherapy resistant stem cells. One mechanism of chemotherapeutic resistance in AML is the overexpression of the protein B-cell lymphoma 2 (BCL-2), an anti-apoptotic protein which sequesters intracellular activators of apoptosis. Venetoclax is a selective, potent, orally bioavailable, small molecule inhibitor of BCL-2 that restores programmed cell death in cancer cells.

This is a trial for children, adolescents and young adults with 2nd relapsed AML or 1st relapsed AML unable to receive additional anthracycline.

This is randomized trial of venetoclax in combination with intensive chemotherapy (fludarabine/cytarabine/gemtuzumab ozogamicin) for the first two cycles (42-day-cycles) that would inform and evaluate if this agent is an effective option for this population to improve its poor prognosis. Participants can receive up to two cycles of induction chemotherapy before hematopoietic stem cell transplantation (HSCT). If participants who have perceived clinical benefit cannot be transplanted after the 2 cycles, maintenance treatment may be given at the discretion of the investigator. In Arm B (experimental arm), participants can continue venetoclax if they have perceived clinical benefit, and maintenance therapy will combine venetoclax with azacitidine for a maximum of 24 cycles. In Arm A (control arm), participants will receive azacitidine in monotherapy. Maintenance is continued until clinical progression or unacceptable toxicity with a maximum of 24 cycles.

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
98
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Arm A: Control Arm without VenetoclaxFludarabineDuring Cycle 1 (42-day-cycles), participants will receive 30 mg/m\^2 of fludarabine followed by 2 g/m\^2 of cytarabine on Days 1-5. Gemtuzumab 3 mg/m\^2 will be given on Day 6 (only for participants with CD33 expression on leukemia blasts). During Cycle 2 participants will receive 30 mg/m\^2 of fludarabine followed by 2 g/m\^2 of cytarabine on Days 1-5. After Cycle 2 participants are assessed for HSCT or azacitidine maintenance therapy.
Arm A: Control Arm without VenetoclaxCytarabineDuring Cycle 1 (42-day-cycles), participants will receive 30 mg/m\^2 of fludarabine followed by 2 g/m\^2 of cytarabine on Days 1-5. Gemtuzumab 3 mg/m\^2 will be given on Day 6 (only for participants with CD33 expression on leukemia blasts). During Cycle 2 participants will receive 30 mg/m\^2 of fludarabine followed by 2 g/m\^2 of cytarabine on Days 1-5. After Cycle 2 participants are assessed for HSCT or azacitidine maintenance therapy.
Arm A: Control Arm without VenetoclaxGemtuzumab OzogamicinDuring Cycle 1 (42-day-cycles), participants will receive 30 mg/m\^2 of fludarabine followed by 2 g/m\^2 of cytarabine on Days 1-5. Gemtuzumab 3 mg/m\^2 will be given on Day 6 (only for participants with CD33 expression on leukemia blasts). During Cycle 2 participants will receive 30 mg/m\^2 of fludarabine followed by 2 g/m\^2 of cytarabine on Days 1-5. After Cycle 2 participants are assessed for HSCT or azacitidine maintenance therapy.
Arm A: Control Arm without VenetoclaxAzacitidineDuring Cycle 1 (42-day-cycles), participants will receive 30 mg/m\^2 of fludarabine followed by 2 g/m\^2 of cytarabine on Days 1-5. Gemtuzumab 3 mg/m\^2 will be given on Day 6 (only for participants with CD33 expression on leukemia blasts). During Cycle 2 participants will receive 30 mg/m\^2 of fludarabine followed by 2 g/m\^2 of cytarabine on Days 1-5. After Cycle 2 participants are assessed for HSCT or azacitidine maintenance therapy.
Arm B: Experimental Arm with VenetoclaxAzacitidineDuring Cycle 1 (42-day-cycles), participants will receive 300 mg adult dose equivalent of venetoclax once on Day 1 followed by 600 mg adult dose equivalent of venetoclax on Days 2-21. Participants will also receive 30 mg/m\^2 of fludarabine followed by 2 g/m\^2 of cytarabine on Days 8-12. Gemtuzumab 3 mg/m\^2 will be given on Day 13 (only for participants with CD33 expression on leukemia blasts). During Cycle 2, participants will receive 600 mg adult dose equivalent of venetoclax on Days 1-21. Participants will receive 30 mg/m\^2 of fludarabine followed by 2 g/m\^2 of cytarabine on Days 1-5. After Cycle 2 participants are assessed for HSCT or azacitidine maintenance therapy in combination with venetoclax.
Arm B: Experimental Arm with VenetoclaxVenetoclaxDuring Cycle 1 (42-day-cycles), participants will receive 300 mg adult dose equivalent of venetoclax once on Day 1 followed by 600 mg adult dose equivalent of venetoclax on Days 2-21. Participants will also receive 30 mg/m\^2 of fludarabine followed by 2 g/m\^2 of cytarabine on Days 8-12. Gemtuzumab 3 mg/m\^2 will be given on Day 13 (only for participants with CD33 expression on leukemia blasts). During Cycle 2, participants will receive 600 mg adult dose equivalent of venetoclax on Days 1-21. Participants will receive 30 mg/m\^2 of fludarabine followed by 2 g/m\^2 of cytarabine on Days 1-5. After Cycle 2 participants are assessed for HSCT or azacitidine maintenance therapy in combination with venetoclax.
Arm B: Experimental Arm with VenetoclaxFludarabineDuring Cycle 1 (42-day-cycles), participants will receive 300 mg adult dose equivalent of venetoclax once on Day 1 followed by 600 mg adult dose equivalent of venetoclax on Days 2-21. Participants will also receive 30 mg/m\^2 of fludarabine followed by 2 g/m\^2 of cytarabine on Days 8-12. Gemtuzumab 3 mg/m\^2 will be given on Day 13 (only for participants with CD33 expression on leukemia blasts). During Cycle 2, participants will receive 600 mg adult dose equivalent of venetoclax on Days 1-21. Participants will receive 30 mg/m\^2 of fludarabine followed by 2 g/m\^2 of cytarabine on Days 1-5. After Cycle 2 participants are assessed for HSCT or azacitidine maintenance therapy in combination with venetoclax.
Arm B: Experimental Arm with VenetoclaxCytarabineDuring Cycle 1 (42-day-cycles), participants will receive 300 mg adult dose equivalent of venetoclax once on Day 1 followed by 600 mg adult dose equivalent of venetoclax on Days 2-21. Participants will also receive 30 mg/m\^2 of fludarabine followed by 2 g/m\^2 of cytarabine on Days 8-12. Gemtuzumab 3 mg/m\^2 will be given on Day 13 (only for participants with CD33 expression on leukemia blasts). During Cycle 2, participants will receive 600 mg adult dose equivalent of venetoclax on Days 1-21. Participants will receive 30 mg/m\^2 of fludarabine followed by 2 g/m\^2 of cytarabine on Days 1-5. After Cycle 2 participants are assessed for HSCT or azacitidine maintenance therapy in combination with venetoclax.
Arm B: Experimental Arm with VenetoclaxGemtuzumab OzogamicinDuring Cycle 1 (42-day-cycles), participants will receive 300 mg adult dose equivalent of venetoclax once on Day 1 followed by 600 mg adult dose equivalent of venetoclax on Days 2-21. Participants will also receive 30 mg/m\^2 of fludarabine followed by 2 g/m\^2 of cytarabine on Days 8-12. Gemtuzumab 3 mg/m\^2 will be given on Day 13 (only for participants with CD33 expression on leukemia blasts). During Cycle 2, participants will receive 600 mg adult dose equivalent of venetoclax on Days 1-21. Participants will receive 30 mg/m\^2 of fludarabine followed by 2 g/m\^2 of cytarabine on Days 1-5. After Cycle 2 participants are assessed for HSCT or azacitidine maintenance therapy in combination with venetoclax.
Primary Outcome Measures
NameTimeMethod
Overall Survival (OS)Up to 5 years
Secondary Outcome Measures
NameTimeMethod
Morphology Event Free Survival (EFS)Up to 5 years
Flow-based Event Free Survival (EFS)Up to 5 years
Morphological Overall Response Rate (ORR)Up to Day 84
Duration of Response (DOR)Up to 5 years
Cumulative Incidence of Relapse (CIR)Up to 5 years
Disease-related MortalityUp to 5 years
Non-disease-related MortalityUp to 5 years
Hematopoietic Stem Cell Transplantation (HSCT) RateUp to 5 years
Number of Participants with Adverse Events (AEs)Up to 5 years
Flow-based Overall Response Rate (ORR)Up to Day 84
Number of Participants with International Working Group Complete Response (IWG-CR)Up to 5 years
Maximum Observed Plasma Concentration (Cmax) of VenetoclaxPre-dose, 2, 4, 6, 8, and 24 hours post-dose on Cycle 1 Day 8 and Day 13 (cycle is 42 days); once on follow-up visits of Cycle 2 between Day 5 and Day 21
Time to Maximum Observed Plasma Concentration (Tmax) of VenetoclaxPre-dose, 2, 4, 6, 8, and 24 hours post-dose on Cycle 1 Day 8 and Day 13 (cycle is 42 days); once on follow-up visits of Cycle 2 between Day 5 and Day 21
Number of Participants That Are Pediatric Minimal Residual Disease (Ped-MRD) Negative with Complete Remission (CR), Partial Complete Remission (CRp), or Complete Remission with Incomplete Hematologic Recovery (CRi)Up to 5 years
Area Under the Plasma Concentration-time Curve Over a 24-hour Dose Interval (AUC0-24)Pre-dose, 2, 4, 6, 8, and 24 hours post-dose on Cycle 1 Day 8 and Day 13 (cycle is 42 days); once on follow-up visits of Cycle 2 between Day 5 and Day 21

Trial Locations

Locations (79)

Phoenix Children's Hospital

🇺🇸

Phoenix, Arizona, United States

Arkansas Children's Hospital

🇺🇸

Little Rock, Arkansas, United States

MemorialCare Miller Children's and Women's Hospital Long Beach

🇺🇸

Long Beach, California, United States

Children's Hospital of Orange County Main Campus - Orange

🇺🇸

Orange, California, United States

Benioff Children's Hospital - Mission Bay

🇺🇸

San Francisco, California, United States

Children's Hospital Colorado

🇺🇸

Aurora, Colorado, United States

Yale University

🇺🇸

New Haven, Connecticut, United States

Nemours Alfred I. Dupont Hospital for Children

🇺🇸

Wilmington, Delaware, United States

Golisano Children's Hospital of Southwest Florida

🇺🇸

Fort Myers, Florida, United States

Nemours Children's Specialty Care Jacksonville

🇺🇸

Jacksonville, Florida, United States

Nemours Children's Hospital - Orlando

🇺🇸

Orlando, Florida, United States

Saint Joseph's Hospital - Tampa

🇺🇸

Tampa, Florida, United States

Children's Healthcare of Atlanta

🇺🇸

Atlanta, Georgia, United States

Kapi'olani Medical Center for Women and Children

🇺🇸

Honolulu, Hawaii, United States

Ann & Robert H. Lurie Children's Hospital of Chicago

🇺🇸

Chicago, Illinois, United States

Comer Children's Hospital

🇺🇸

Chicago, Illinois, United States

University of Iowa Stead Family Children's Hospital

🇺🇸

Iowa City, Iowa, United States

Dana-Farber Cancer Institute

🇺🇸

Boston, Massachusetts, United States

Children's Hospital of Michigan

🇺🇸

Detroit, Michigan, United States

Masonic Cancer Center

🇺🇸

Minneapolis, Minnesota, United States

Cohen Children's Medical Center

🇺🇸

Queens, New York, United States

Norton Children's Hospital

🇺🇸

Louisville, Kentucky, United States

Columbia University Irving Medical Center

🇺🇸

New York, New York, United States

University of Mississippi Medical Center

🇺🇸

Jackson, Mississippi, United States

The Children's Mercy Hospital - Adele Hall Campus

🇺🇸

Kansas City, Missouri, United States

Alliance for Childhood Diseases dba Cure 4 The Kids Foundation

🇺🇸

Las Vegas, Nevada, United States

Memorial Sloan Kettering Cancer Center - New York

🇺🇸

New York, New York, United States

Washington University School of Medicine in St. Louis

🇺🇸

Saint Louis, Missouri, United States

Nationwide Children's Hospital

🇺🇸

Columbus, Ohio, United States

Children's Hospital of Philadelphia

🇺🇸

Philadelphia, Pennsylvania, United States

Texas Children's Hospital

🇺🇸

Houston, Texas, United States

CancerCare Manitoba

🇨🇦

Winnipeg, Manitoba, Canada

Izaak Walton Killam (IWK) Health Center

🇨🇦

Halifax, Nova Scotia, Canada

Hôpital Jeanne de Flandre

🇫🇷

Loos, Hauts-de-France, France

Morristown Medical Center

🇺🇸

Morristown, New Jersey, United States

Doernbecher Children's Hospital

🇺🇸

Portland, Oregon, United States

Prisma Health Richland Hospital

🇺🇸

Columbia, South Carolina, United States

St. Jude Children's Research Hospital

🇺🇸

Memphis, Tennessee, United States

Seattle Children's Hospital

🇺🇸

Seattle, Washington, United States

SickKids - The Hospital for Sick Children

🇨🇦

Toronto, Ontario, Canada

Rigshospitalet

🇩🇰

Copenhagen, Hovedstaden, Denmark

Schneider Children's Medical Center of Israel

🇮🇱

Petach Tikvah, Central District, Israel

Monroe Carell Jr. Children's Hospital at Vanderbilt

🇺🇸

Nashville, Tennessee, United States

Children's Health Queensland Hospital and Health Service

🇦🇺

South Brisbane, Queensland, Australia

Perth Children's Hospital

🇦🇺

Nedlands, Western Australia, Australia

Sankt Anna-Kinderspital

🇦🇹

Vienna, Austria

Harold C. Simmons Comprehensive Cancer Center

🇺🇸

Dallas, Texas, United States

Primary Children's Hospital

🇺🇸

Salt Lake City, Utah, United States

The Royal Children's Hospital - Children's Cancer Centre

🇦🇺

Parkville, Victoria, Australia

Universitair Ziekenhuis Gent

🇧🇪

Gent, Oost-Vlaanderen, Belgium

Alberta Children's Hospital

🇨🇦

Calgary, Alberta, Canada

British Columbia Children's Hospital

🇨🇦

Vancouver, British Columbia, Canada

Children's Hospital of Eastern Ontario

🇨🇦

Ottawa, Ontario, Canada

CHU de Toulouse - Hôpital des Enfants

🇫🇷

Toulouse, Haute-Garonne, France

Hôpital Universitaire Robert-Debré

🇫🇷

Paris, Ile-de-France, France

CHU de Nantes - Hôpital Femme-Enfant-Adolescent

🇫🇷

Nantes Cedex 1, Loire-Atlantique, France

Fakultni nemocnice v Motole

🇨🇿

Praha 5, Prague, Czechia

Hôpital Armand-Trousseau

🇫🇷

Paris, Ile-de-France, France

Institut d'Hématologie et d'Oncologie Pédiatrique

🇫🇷

Lyon, Rhône, France

Istituto Giannina Gaslini

🇮🇹

Genova, Genoa, Italy

Uusi Lastensairaala

🇫🇮

Helsinki, Etelä-Suomen Lääni, Finland

Fondazione IRCCS San Gerardo dei Tintori

🇮🇹

Monza, Monza And Brianza, Italy

National Center for Child Health and Development

🇯🇵

Setagaya-Ku, Tokyo, Japan

Osaka City General Hospital

🇯🇵

Osaka, Japan

Prinses Maxima Centrum Kinderoncologie

🇳🇱

Utrecht, Netherlands

Ospedale Pediatrico Bambino Gesù

🇮🇹

Roma, Rome, Italy

Ospedale Infantile Regina Margherita

🇮🇹

Torino, Turin, Italy

Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital

🇯🇵

Nagoya-shi, Aiti, Japan

Hyogo Prefectural Kobe Children's Hospital

🇯🇵

Kobe-Shi, Hyogo, Japan

Saitama Prefectural Children's Medical Center

🇯🇵

Saitama-Shi, Saitama, Japan

Starship Children's Hospital

🇳🇿

Grafton, Auckland, New Zealand

Oslo Universitetssykehus

🇳🇴

Oslo, Norway

Instituto Portugues De Oncologia De Lisboa Francisco Gentil

🇵🇹

Lisbon, Lisboa, Portugal

Hospital Universitari Vall d'Hebrón

🇪🇸

Barcelona, Spain

Hospital Sant Joan de Déu Barcelona

🇪🇸

Barcelona, Spain

Hospital Infantil Universitario Niño Jesús

🇪🇸

Madrid, Spain

Hospital Universitario La Fe

🇪🇸

València, Spain

Karolinska Universitetssjukhuset Solna

🇸🇪

Stockholm, Stockholms Län, Sweden

Universitaets - Kinderspital Zürich

🇨🇭

Zurich, Switzerland

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