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Study Evaluating the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics and Efficacy of AMG 427 in Subjects With Relapsed/Refractory Acute Myeloid Leukemia.

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. Identifier: NCT03541369
Recruitment Status : Recruiting
First Posted : May 30, 2018
Last Update Posted : September 20, 2019
Information provided by (Responsible Party):

Brief Summary:
Evaluate the safety and tolerability of AMG 427 in adult subjects with relapsed/refractory AML. Estimate the maximum tolerated dose (MTD) and / or a biologically optimal dose (eg, recommended phase 2 dose [RP2D]).

Condition or disease Intervention/treatment Phase
Relapsed/Refractory Acute Myeloid Leukemia (AML) Drug: AMG 427 Phase 1

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 70 participants
Allocation: Randomized
Intervention Model: Sequential Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Phase 1 First-In-Human Study Evaluating the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics and Efficacy of AMG 427 in Subjects With Relapsed/Refractory Acute Myeloid Leukemia.
Actual Study Start Date : September 14, 2018
Estimated Primary Completion Date : January 9, 2021
Estimated Study Completion Date : January 9, 2021

Arm Intervention/treatment
Experimental: Dose Escalation Phase
AMG 427 Dose-finding phase of the study
Drug: AMG 427
AMG 427 will be administered as an intravenous (IV) infusion in adult subjects with relapsed/refractory AML.

Experimental: Dose Expansion Phase
AMG 427 MTD identified in dose escalation phase (or lower) will be administered to subjects.
Drug: AMG 427
AMG 427 will be administered as an intravenous (IV) infusion in adult subjects with relapsed/refractory AML.

Primary Outcome Measures :
  1. subject incidence of dose limiting toxicities (DLTs) [ Time Frame: 14 Months ]
  2. subject incidence of treatment-emergent adverse events (TEAEs) [ Time Frame: 14 Months ]
  3. subject incidence of treatment-related adverse events (TRAEs) [ Time Frame: 14 Months ]

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Subject has provided informed consent prior to initiation of any study-specific activities/procedures.
  • Subjects greater than or equal to18 years of age at the time of signing consent.
  • AML as defined by the WHO Classification (Appendix D) as persisting or recurring following 1 or more treatment courses (exceptions noted in exclusión criteria).
  • Myeloblasts greater than or equal to 5% in bone marrow, as confirmed by immunophenotype by flow cytometry.
  • Eastern Cooperative Oncology Group (ECOG, Appendix F) Performance Status of less than or equal to 2.
  • Renal function as follows: serum creatinine greater than 2.0 mg/dL (176.84 mol/L); estimated glomerular filtration rate (eGFR) less tan 30 mL/min/1.73 m2.
  • Hepatic function as follows:aspartate aminotransferase (AST) and alanine aminotransferase (ALT) less tan or equal to 3.0 x upper limit of normal (ULN); bilirubin less than or equal to 1.5 x ULN (unless considered due to Gilbert's syndrome or hemolysis).

Exclusion Criteria:

  • Patients with acute promyelocytic leukemia (APML).
  • Active extramedullary AML in the central nervous system (CNS)
  • Known hypersensitivity to immunoglobulins.
  • White blood cells (WBC) greater than 15,000 cells/mcL (15 cells x 10^9/L) at screening (hydroxyurea is permitted to enable eligibility).
  • Prior malignancy (other than in situ cancer) unless treated with curative intent and without evidence of disease for greater than 2 years before screening.
  • Autologous HSCT within 6 weeks prior to start of AMG 427 treatment.
  • Allogeneic HSCT within 3 months prior to start of AMG 427 treatment.
  • Any graft-versus-host disease requiring systemic therapy with immunomodulators.
  • History or evidence of significant cardiovascular risk including any of the following: symptomatic congestive heart failure, unstable angina, clinically significant arrhythmias (eg, ventricular fibrillation, ventricular tachycardia etc.), recent coronary angioplasty, intra-cardiac defibrillators or any clinically relevant concurrent disorder that may pose a risk to subject safety or interfere with study evaluation, procedures, or completion.
  • History of arterial thrombosis (eg, stroke or transient ischemic attack) in the past 3 months.
  • Active infection requiring intravenous antibiotics within 1 week of study enrollment (day 1). Antibiotics may be administered for prophylaxis as per institutional standards up to and after enrollment.
  • Known positive test for human immunodeficiency virus (HIV).
  • Positive for hepatitis B surface antigen (HepBsAg).
  • Positive for hepatitis C or chronic hepatitis C. Possible exceptions: acute hepatitis C and completely cleared of the virus (demonstrated by negative viral load), chronic hepatitis C with undetectable viral load defined by sustained virologic response 24 weeks (SVR24) after completion of anti-hepatitis C treatment.
  • Live vaccination(s) within 4 weeks before the start of AMG 427 treatment on day 1, during treatment, and until the end of the last study dose.
  • Unresolved toxicities from prior antitumor therapy, defined as not having resolved to Common Terminology Criteria for Adverse Events (CTCAE), version 4.0 grade 1 (with the exception of myelosuppression, eg, neutropenia, anemia, thrombocytopenia), or to levels dictated in the eligibility criteria with the exception of alopecia or toxicities from prior antitumor therapy that are considered irreversible (defined as having been present and stable for greater than 2 months) which may be allowed if they are not otherwise described in the exclusion criteria AND there is agreement to allow by both the investigator and sponsor.
  • Antitumor therapy (chemotherapy, antibody therapy, molecular-targeted therapy, or investigational agent) within 14 days of day 1. Exception: hydroxyurea to control peripheral blood leukemic cell counts is allowed until start of investigational product treatment.
  • Treatment with systemic immune modulators including, but not limited to, nontopical systemic corticosteroids, cyclosporine, and tacrolimus within 2 weeks before enrollment (day 1). Exceptions: physiologic replacement steroids or hydrocortisone for treatment of transfusion reactions.
  • Major surgery within 28 days of study day 1 with the exception of biopsy and insertion of central venous catheter.
  • History or evidence of any other clinically significant disorder, condition or disease that, in the opinion of the investigator or Amgen medical monitor would pose a risk to subject safety or interfere with the study evaluation, procedures or completion.
  • Males and females of reproductive potential who are unwilling to practice a highly effective method(s) of birth control while on study through 4 weeks after receiving the last dose of study drug. Acceptable methods of highly effective birth control include sexual abstinence (males, females); vasectomy; bilateral tubal ligation/occlusion; or a condom with spermicide (men) in combination with hormonal birth control or intrauterine device (IUD) (women).
  • Females who are lactating/breastfeeding or who plan to breastfeed while on study through 4 weeks after receiving the last dose of study drug.
  • Females with a positive pregnancy test.
  • Females planning to become pregnant while on study through 4 weeks after receiving the last dose of study drug.
  • Subjects likely to not be available to complete all protocol-required study visits or procedures, and/or to comply with all required study procedures to the best of the subject's and investigator's knowledge.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT03541369

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Contact: Amgen Call Center 866-572-6436

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United States, California
Research Site Recruiting
Duarte, California, United States, 91010
United States, Texas
Research Site Recruiting
Houston, Texas, United States, 77030
Australia, Victoria
Research Site Recruiting
Parkville, Victoria, Australia, 3050
Sponsors and Collaborators
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Study Director: MD Amgen

Additional Information:
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Responsible Party: Amgen Identifier: NCT03541369     History of Changes
Other Study ID Numbers: 20170528
BB-IND 138440 ( Other Grant/Funding Number: IND Number )
First Posted: May 30, 2018    Key Record Dates
Last Update Posted: September 20, 2019
Last Verified: September 2019
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description: De-identified individual patient data for variables necessary to address the specific research question in an approved data sharing request.
Supporting Materials: Study Protocol
Statistical Analysis Plan (SAP)
Informed Consent Form (ICF)
Clinical Study Report (CSR)
Time Frame: Data sharing requests relating to this study will be considered beginning 18 months after the study has ended and either 1) the product and indication have been granted marketing authorization in both the US and Europe or 2) clinical development for the product and/or indication discontinues and the data will not be submitted to regulatory authorities. There is no end date for eligibility to submit a data sharing request for this study.
Access Criteria: Qualified researchers may submit a request containing the research objectives, the Amgen product(s) and Amgen study/studies in scope, endpoints/outcomes of interest, statistical analysis plan, data requirements, publication plan, and qualifications of the researcher(s). In general, Amgen does not grant external requests for individual patient data for the purpose of re-evaluating safety and efficacy issues already addressed in the product labelling. Requests are reviewed by a committee of internal advisors. If not approved, a Data Sharing Independent Review Panel will arbitrate and make the final decision. Upon approval, information necessary to address the research question will be provided under the terms of a data sharing agreement. This may include anonymized individual patient data and/or available supporting documents, containing fragments of analysis code where provided in analysis specifications. Further details are available at the link below.

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
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Leukemia, Myeloid
Leukemia, Myeloid, Acute
Neoplasms by Histologic Type