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Acute Myeloid LeukemiaPhase 1/2NCT00522990

Study to Assess the Safety of Escalating Doses of AT9283, in Patients With Leukemias

A Phase 1/2 study testing AT9283 in people with Acute Myeloid Leukemia and Acute Lymphoblastic Leukemia, run by Astex Pharmaceuticals, Inc. at 2 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The goal of this clinical research study is to find the highest tolerable dose of AT9283 that can be given to patients who have ALL, AML, CML, high-risk myelodysplastic syndromes, or myelofibrosis with myeloid metaplasia. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
AT9283
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
48 participants
Where
2 sitesUnited States
Study dates
Sep 2006to Apr 2009
Phase
Phase 1/2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Provision of signed written informed consent
  • Histological or cytological confirmation of one of the following:
  • Relapsed or refractory AML or ALL; acute leukaemia in patients who are unsuitable for or refuse standard therapy
  • CML in chronic phase, accelerated phase or blast crisis that is resistant or refractory to standard therapy
  • High-risk MDS, defined as the presence of:
  • i)Refractory anemia with excess blasts (RAEB, 5-19% bone marrow blasts)
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  • or
  • ii)RAEB in transformation to AML (RAEBT with 20-30% bone marrow blasts)
  • Advanced MMM defined by the presence of one or more of the following features:
  • i)Hemoglobin < 10 gm/dL (100 g/L)
  • ii)Platelet count < 100 x 109/L
  • iii)White blood cell count < 4 x 109/L
  • iv)Symptomatic splenomegaly or other disease-related symptoms inadequately controlled by conventional therapies
  • ECOG performance status 0, 1 or 2
  • Male or female, age 18 years or older
  • Negative pregnancy test or history of surgical sterility or evidence of post-menopausal status (post-menopausal status is defined as any of the following: natural menopause with menses >1 year ago; radiation induced oophorectomy with last menses >1 year ago; chemotherapy induced menopause with 1 year interval since last menses

Who cannot join

  • Inadequate liver function as demonstrated by serum bilirubin ≥1.5 times the upper limits of reference range (ULRR) or alanine aminotransferase (ALT) or aspartate aminotransferase (AST) or alkaline phosphatase (ALP) ≥2.5 times the ULRR (or ≥5 times the ULRR in the presence of liver metastases)
  • Impaired renal function as demonstrated either by an isolated creatinine value of ≥1.5 times the ULRR OR creatinine clearance < 50 mL/min determined by Cockcroft-Gault formula. Note there is no requirement to determine a formal creatinine clearance if the patient's serum creatinine value is ≥1.5 times the ULRR.
  • Radiotherapy or chemotherapy within the 14 days prior to the first dose of AT9283 being administered (Day 1, dose level 1). Planned use of hydroxyurea other than as is permitted as described in section 11.9.
  • Receiving an investigational anti-cancer treatment concurrently or within 14 days prior to the start of AT9283 infusion (Day 1)
  • Unresolved CTCAE grade 2 or greater toxicity (other than stable toxicity) from previous anti-cancer therapy excluding alopecia
  • Any evidence of severe or uncontrolled systemic conditions (e.g., severe hepatic impairment) or current unstable or uncompensated respiratory or cardiac conditions which makes it undesirable for the patient to participate in the study or which could jeopardize compliance with the protocol
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  • Active, uncontrolled central nervous system disease
  • Ischemic heart disease or myocardial infarction or unstable cardiac disease within 3 months of study entry
  • Prior infection with human immunodeficiency virus (HIV), hepatitis B or C viruses - screening for viral infections is not required for entry to this study
  • Major surgery within 28 days prior to the start of AT9283 infusion (Day 1) - excluding skin biopsies and procedures for insertion of central venous access devices

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • University of Alabama at Birmingham

    Birmingham, Alabama, 35294

  • The University of Texas, MD Anderson Cancer Center

    Houston, Texas, 77030

Other trials in United States

About this study

Official title: A Phase I/IIa Open-label Study to Assess the Safety, Tolerability and Preliminary Efficacy of AT9283, a Small Molecule Inhibitor of Aurora Kinases, in Patients With Refractory Hematological Malignancies

The goal of this clinical research study is to find the highest tolerable dose of AT9283 that can be given to patients who have ALL, AML, CML, high-risk myelodysplastic syndromes, or myelofibrosis with myeloid metaplasia. Researchers want to perform pharmacokinetic (PK) testing on blood to find out how quickly the study drug leaves the body and how the body breaks down the drug. The safety and effectiveness of this drug will also be studied.

Read the detailed description

Dose escalation study of AT9283 administered to patients with refractory hematological malignancies. Study objectives include identification of MTD and dose limiting toxicities, preliminary assessment of efficacy and definition of pharmacokinetic profile

Being tested
AT9283
Medical subject headings
Leukemia, Myeloid, Acute, Precursor Cell Lymphoblastic Leukemia-Lymphoma, Leukemia, Myelogenous, Chronic, BCR-ABL Positive, Myelodysplastic Syndromes, Primary Myelofibrosis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • AT9283Drug

    Three weekly intravenous administration of AT9283

Study groups in NCT00522990
Study groupRoleWhat they receive
1ExperimentalRefractory Hematological Malignancies
Receives: Drug: AT9283

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Safety and tolerability

    Measured: Up to 30 days after completing therapy with AT9283

Secondary outcomes (1)
  1. Pharmacokinetic profile, Safety and tolerability of maximum tolerated dose, efficacy, pharmacodynamic effect, identify dose limiting toxicities

    Measured: Within six months of initiating therapy with AT92823

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted30 Aug 2007 (estimated)
  2. Study startSep 2006
  3. Primary completionApr 2009
  4. Study completionApr 2009

Why it stopped: Recommended Phase II dose determined

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
48 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00522990
Sponsor's protocol ID
AT9283/0002
Other IDs
2006-0177
Status last verified
Aug 2024
First submitted
29 Aug 2007
Last updated
2 Aug 2024
Results posted
No
Data monitoring committee
No

Publications

  • Foran J, Ravandi F, Wierda W, Garcia-Manero G, Verstovsek S, Kadia T, Burger J, Yule M, Langford G, Lyons J, Ayrton J, Lock V, Borthakur G, Cortes J, Kantarjian H. A phase I and pharmacodynamic study of AT9283, a small-molecule inhibitor of aurora kinases in patients with relapsed/refractory leukemia or myelofibrosis. Clin Lymphoma Myeloma Leuk. 2014 Jun;14(3):223-30. doi: 10.1016/j.clml.2013.11.001. Epub 2013 Nov 14.

    PubMed 24355079

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing AT9283 in people with Acute Myeloid Leukemia and Acute Lymphoblastic Leukemia, run by Astex Pharmaceuticals, Inc. at 2 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 16 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 2 Aug 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: Recommended Phase II dose determined). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Safety and tolerability (time frame: Up to 30 days after completing therapy with AT9283). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00522990, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Aug 2024.

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