- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02665065
Study of Iomab-B vs. Conventional Care in Older Subjects With Active, Relapsed or Refractory Acute Myeloid Leukemia (SIERRA)
July 18, 2023 updated by: Actinium Pharmaceuticals
A Multicenter, Pivotal Phase 3 Study of Iomab-B Prior to Allogeneic Hematopoietic Cell Transplant Versus Conventional Care in Older Subjects With Active, Relapsed or Refractory Acute Myeloid Leukemia (AML)
The primary objective of this study is to demonstrate the efficacy of Iomab-B, in conjunction with a Reduced Intensity Conditioning (RIC) regimen and protocol-specified allogeneic hematopoietic stem cell transplant (HCT), versus Conventional Care in patients with Active, Relapsed or Refractory Acute Myeloid Leukemia (AML).
Study Overview
Status
Active, not recruiting
Conditions
Intervention / Treatment
Detailed Description
SIERRA is a pivotal Phase 3 randomized controlled study of Iomab-B in Relapsed or Refractory AML patients.
The SIERRA trial has a primary endpoint of durable Complete Remission (dCR) at six months and a secondary endpoint of overall survival following randomization to Iomab-B, as well as Event-Free Survival.
Iomab-B is intended to prepare and condition patients for a bone marrow transplant, also referred to as a hematopoietic stem cell transplant, in a potentially safer and more efficacious manner than intensive chemotherapy conditioning that is the current standard of care in bone marrow transplant conditioning.
Study Type
Interventional
Enrollment (Actual)
153
Phase
- Phase 3
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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Ontario
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Ottawa, Ontario, Canada
- University of Ottawa
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Toronto, Ontario, Canada, M5G 2M9
- Princess Margaret Cancer Centre
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Arizona
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Gilbert, Arizona, United States, 85234
- Banner MD Anderson Cancer Center
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Connecticut
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New Haven, Connecticut, United States, 06520
- Yale Cancer Center
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District of Columbia
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Washington, District of Columbia, United States, 20007
- Georgetown University Medical Center
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Florida
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Jacksonville, Florida, United States, 32224
- Mayo Clinic
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Illinois
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Maywood, Illinois, United States, 60153
- Loyola University Medical Center
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Iowa
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Iowa City, Iowa, United States, 52242
- University of Iowa
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Kansas
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Westwood, Kansas, United States, 66205
- The University of Kansas Cancer Center
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Minnesota
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Rochester, Minnesota, United States, 55902
- Mayo Clinic
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Missouri
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Saint Louis, Missouri, United States, 63110
- Washington University School of Medicine
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Nebraska
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Omaha, Nebraska, United States, 68106
- University of Nebraska Medical Center
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New York
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Buffalo, New York, United States, 14263
- Roswell Park Cancer Institute
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New York, New York, United States, 10022
- Weill Cornell Medicine
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New York, New York, United States, 10038
- Memorial Sloan Kettering Cancer Center
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Stony Brook, New York, United States, 11794
- Stony Brook University
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North Carolina
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Chapel Hill, North Carolina, United States, 27599
- University of North Carolina Hospital
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Ohio
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Cleveland, Ohio, United States, 44106
- University Hospital of Cleveland Seidman Cancer Center
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Columbus, Ohio, United States, 43210
- The Ohio State University Comprehensive Cancer Center
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Oregon
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Portland, Oregon, United States, 97239
- Oregon Health & Science University
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Texas
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Dallas, Texas, United States, 75246
- Baylor Charles A. Sammons Cancer Center
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Houston, Texas, United States, 77030
- MD Anderson Cancer Center
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Washington
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Seattle, Washington, United States, 98109
- Fred Hutchinson Cancer Research Center
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Wisconsin
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Milwaukee, Wisconsin, United States, 53226
- Medical College of Wisconsin
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
55 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Description
Inclusion Criteria:
- Have active, relapsed or refractory Acute Myeloid Leukemia (AML). Active, relapsed or refractory AML is defined as any one of the following (1) primary induction failure, or (PIF) after 2 or more cycles of therapy, or (2) first early relapse after a remission duration of fewer than 6 months, or (3) relapse refractory to salvage combination chemotherapy, or (4) second or subsequent relapse
- Have documented CD45 expression by leukemic cells via flow cytometry (a "blast gate" on CD45 vs. side scatter analysis consistent with AML)
- Be at least 55 years of age
- Have a circulating blast count of less than 10,000/mm3 (control with hydroxyurea is allowed)
- Have a calculated creatinine clearance (Cockcroft-Gault equation) > 50 mL/min
- Have adequate hepatic function (direct bilirubin, aspartate aminotransferase (AST), and alanine aminotransferase (ALT), defined as ≤ 2 times the upper limit of normal [ULN])
- Have a Karnofsky score ≥ 70
- Have an expected survival of > 60 days
- Have a central venous catheter line in place prior to study treatment administration
- Have 8/8 allele-level, related or unrelated, medically cleared HSC donor matching at human leukocyte antigen (HLA)-A, HLA-B, HLA-C, and DRB-1 with a donor who is medically cleared. Syngeneic donors that meet these criteria are allowed
- Women of childbearing potential, be surgically sterile or agree to practice abstinence or utilize acceptable contraception (intrauterine, injectable, transdermal, or combination oral contraceptive) through 1-year post transplant; Males who are sexually active with women of childbearing potential must be surgically sterile or using an acceptable method of contraception (defined as barrier methods in conjunction with spermicides) from time of screening through 12 weeks after last dose of study drug
- Be able to understand the study procedures, agree to participate in the study program, and voluntarily provide written Informed Consent
Exclusion Criteria:
- Have circulating HAMA noted on initial screening
- Have received prior radiation to maximally tolerated levels to any critical normal organ
- Have active leukemic central nervous system (CNS) involvement, as defined by any leukemic blasts detected in the cerebrospinal fluid (CSF) by morphology or flow cytometry and/or any chloromas detected by CNS imaging
- Have previously received HCT (including both allogeneic and autologous HCT)
- Have clinically significant cardiac disease (NYHA Class III or IV); clinically significant arrhythmia i.e. ventricular tachycardia, ventricular fibrillation, or "Torsade de Pointes". Myocardial infarction with uncontrolled angina within 6 months, congestive heart failure, or clinically significant cardiomyopathy
- Have abnormal QTcF (>450milliseconds) after electrolytes have been corrected (at least two different ECG readings and at least 15 minutes between readings). Subjects with paced rhythm or prolonged QTcF may be exempt from this exclusion if considered eligible for transplant per treating physician clinical judgement with optional cardiology consultation
- Have current or prior positive test results for human immunodeficiency virus (HIV) or hepatitis B (HBV) or C. Subjects who have positive HBV test results due to having been previously vaccinated against hepatitis B, as evidenced by negative hepatitis B surface antigen (HBsAg), negative anti- hepatitis B core protein (HBc) and positive antibody to the HBsAg (anti-HBs) are not excluded. Subjects who have positive hepatitis test results with adequate organ function as defined in the protocol are not excluded
- Have active serious infection uncontrolled by antibiotics or antifungals
- Have acute promyelocytic leukemia and the associated cytogenic translocation t(15/17)
- Have active malignancy within 2 years of entry. Active malignancy is defined as those malignancies requiring treatment with anti-cancer therapy or in the event of indolent malignancies, having measurable disease. Exceptions to this exclusion include: myelodysplastic syndrome, treated non-melanoma skin cancer, completely resected Stage 0 or 1 melanoma no less than 1 year from resection, carcinoma in situ or cervical intraepithelial neoplasia, and successfully treated organ-confined prostate cancer with no evidence of progressive disease based on prostate specific antigen (PSA) levels and are not on active therapy
- Have a perceived inability to tolerate diagnostic or therapeutic procedures, particularly treatment in radiation isolation
- Currently receiving any other active investigational agents
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Experimental: Iomab-B
Iomab-B in conjunction with a Reduced Intensity Conditioning (RIC) regimen containing Fludarabine and low-dose Total Body Irradiation (TBI) prior to allogeneic HCT
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Active Comparator: Conventional Care
Defined as Investigator's choice of salvage chemotherapy with any combination of the following agents: Azacitidine (not allowed as a single agent), Carboplatin, Cladribine, Clofarabine, Cyclophosphamide, Cytarabine, Daunorubicin, Decitabine (not allowed as a single agent with the exception of patients with documented TP53 mutations who have not previously received 10-day regimens of single agent decitabine), Doxorubicin, Enasidenib, Etoposide, Fludarabine, Gemtuzumab ozogamicin, Idarubicin, Ivosidenib (for subjects with IDH1 mutation), L-Asparaginase, Midostaurin (for FLT3 mutant or FLT3-ITD subjects only, not allowed as single agent), Mitoxantrone, Sorafenib (for FLT3 mutant or FLT3-ITD subjects only, not allowed as single agent), Thioguanine, Topotecan, Venetoclax (in combination with a hypomethylating agent).
Chemotherapy agents not listed above may be administered after providing clinical justification and receiving medical monitor approval prior to initiation of treatment.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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Durable Complete Remission (dCR)
Time Frame: 6 months from time of initial CR or CRp
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Defined as CR or CRp lasting 180 days or more from time of initial CR or CRp is documented with evidence of subsequent relapse
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6 months from time of initial CR or CRp
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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Overall Survival (OS) following randomization to Iomab-B versus Convetional Care
Time Frame: Over a 5 year period
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Patient overall survival
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Over a 5 year period
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Event-Free Survival
Time Frame: Over a 5 year period
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Duration of time from randomization to the date of induction treatment failure (ITF), relapse or death
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Over a 5 year period
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Study Chair: Avinash Desai, MD, Actinium Pharmaceuticals
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
June 1, 2016
Primary Completion (Actual)
June 1, 2022
Study Completion (Estimated)
December 1, 2026
Study Registration Dates
First Submitted
January 22, 2016
First Submitted That Met QC Criteria
January 26, 2016
First Posted (Estimated)
January 27, 2016
Study Record Updates
Last Update Posted (Actual)
July 19, 2023
Last Update Submitted That Met QC Criteria
July 18, 2023
Last Verified
July 1, 2023
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- Iomab-01
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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