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Leukemia, Myeloid, ChronicPhase 2NCT00320190

Study of Dasatinib in Patients With Chronic Phase Chronic Myeloid Leukemia and a Suboptimal Response to Imatinib

A Phase 2 study testing Imatinib and Dasatinib in people with Leukemia, Myeloid, Chronic, run by Bristol-Myers Squibb at 27 sites in 11 countries.

Terminated

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

Official record
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Trial summary

The purpose of this study is to compare the efficacy of dasatinib with that of high-dose (800-mg) imatinib in participants with chronic phase chronic myeloid leukemia who achieved only a suboptimal response after at least 3 months of monotherapy with 400-mg imatinib. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Leukemia, Myeloid, Chronic
What is being tested?
Imatinib and Dasatinib
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
52 participants
Where
27 sitesin 11 countries
Study dates
Aug 2006to Jan 2010
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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

  • Chronic phase Ph^+ chronic myeloid leukemia (CML) demonstrating only a suboptimal response, defined as a hematologic response that is less than a complete hematologic response after at least 3 months of monotherapy with imatinib, 400 mg; a cytogenic response (CgR) that is less than a partial CgR (PCgR) after at least 6 months of monotherapy with imatinib, 400 mg; a PCgR after at least 12 months of monotherapy with imatinib, 400 mg; or less than a major molecular response with a complete CgR after at least 18 months of monotherapy with imatinib, 400 mg.
  • Either gender
  • Age of 18 years or older

Who cannot join

  • Previous diagnosis of accelerated phase or blast crisis CML
  • Uncontrolled or significant cardiovascular disease
  • History of significant bleeding disorder unrelated to CML
  • Concurrent malignancies
  • Intolerance of imatinib, 400 mg
  • Prior treatment with imatinib at a dose higher than 400 mg
  • Prior stem cell transplantation and/or high-dose chemotherapy for CML

Trial locations and contacts

27 sites in 11 countries.

27 sites in 11 countries

France7 sites
  • Local Institution

    Lyon, 69437

  • Local Institution

    Marseille, 13273

  • Local Institution

    Montpellier, 34295

  • Local Institution

    Paris, 75475

  • Local Institution

    Rennes, 35033

  • Local Institution

    Strasbourg, 67091

  • Local Institution

    Toulouse, 31059

Other trials in France

United Kingdom4 sites
  • Local Institution

    Glasgow, Central, G31 2ER

  • Local Institution

    Leeds, North Yorkshire, LS9 7FT

  • Local Institution

    London, Greater London, SE5 9RS

  • Local Institution

    London, Greater London, W12 ONN

Other trials in United Kingdom

Russia3 sites
  • Local Institution

    Moscow, 125167

  • Local Institution

    Saint Petersburg, 191024

  • Local Institution

    Saint Petersburg, 197022

Other trials in Russia

Sweden3 sites
  • Local Institution

    Lund, 221 85

  • Local Institution

    Örebro, 70185

  • Local Institution

    Uppsala, 751 85

Other trials in Sweden

Belgium2 sites
  • Local Institution

    Antwerp, 2060

  • Local Institution

    Charleroi, 6000

Other trials in Belgium

Finland2 sites
  • Local Institution

    Helsinki, 00029

  • Local Institution

    Tampere, 33380

Other trials in Finland

Norway2 sites
  • Local Institution

    Oslo, 0027

  • Local Institution

    Trondheim, 7006

Other trials in Norway

Germany1 site
  • Local Institution

    Leipzig, 04103

Other trials in Germany

Italy1 site
  • Local Institution

    Orbassano (To), 10043

Other trials in Italy

Portugal1 site
  • Local Institution

    Lisbon, 1649-035

Other trials in Portugal

Spain1 site
  • Local Institution

    Murcia, 30008

Other trials in Spain

About this study

Official title: An Open-label, Randomized Study of Dasatinib vs High-dose (800-mg) Imatinib in the Treatment of Subjects With Chronic Phase Chronic Myeloid Leukemia Who Have Had a Suboptimal Response After at Least 3 Months of Therapy With 400 mg Imatinib

The purpose of this study is to compare the efficacy of dasatinib with that of high-dose (800-mg) imatinib in participants with chronic phase chronic myeloid leukemia who achieved only a suboptimal response after at least 3 months of monotherapy with 400-mg imatinib. The safety of these treatments will also be evaluated.

Read the detailed description

Participants were randomized 2:1 to dasatinib or high-dose imatinib, respectively. Randomization was stratified by a suboptimal response, defined as a hematologic response less than a complete hematologic response after at least 3 months of monotherapy with 400-mg imatinib; a cytogenic response (CgR) less than a partial CgR (PCgR) after at least 6 months of monotherapy with 400-mg; a PCgR after at least 12 months of monotherapy with 400-mg imatinib; or less than a major molecular response with a complete CgR after at least 18 months of monotherapy with 400-mg imatinib.

Participants received either dasatinib or imatinib for 12 months or until disease progression, unacceptable toxicity, consent withdrawal, or study discontinuation. After 12 months, who had a confirmed major molecular response and were still receiving dasatinib, 100 mg, or imatinib, 800 mg, were eligible to extend treatment for an additional 12 months. Participants permanently discontinuing treatment before 12 months were considered treatment failures and withdrawn from the study.

Being tested
Imatinib, Dasatinib
Keywords
Chronic phase CML, with a suboptimal response after treatment with imatinib
Medical subject headings
Leukemia, Myelogenous, Chronic, BCR-ABL Positive, Leukemia, Myeloid, Chronic-Phase

What participants receive

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

  • ImatinibDrug

    Imatinib tablets administered orally at a dose of 400 mg twice daily. Each 400- mg dose to be taken with a meal and a large glass of water.

  • DasatinibDrug

    Dasatinib tablets administered orally at a dose of 100 mg once daily.

Study groups in NCT00320190
Study groupRoleWhat they receive
DasatinibActive comparatorParticipants with chronic phase chronic myeloid leukemia (CML) who had only a suboptimal response after at least 3 months of therapy with imatinib, 400 mg.
Receives: Drug: Dasatinib
ImatinibActive comparatorParticipants with chronic phase CML who had only a suboptimal response after at least 3 months of therapy with imatinib, 400 mg.
Receives: Drug: Imatinib

What is being measured

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

  1. Percentage of Participants With Chronic Phase Chronic Myeloid Leukemia Who Have a Major Molecular Response (MMolR)

    MMolR is defined as reduction in transcript levels of the breakpoint cluster region (BCR)-V-abl Abelson murine leukemia viral oncogene homolog 1 (ABL) gene of at least 3 log. The BCR-ABL gene has a role in the production of a mutated protein that converts bone marrow stem cells from normal to leukemic.

    Measured: At 12 months from baseline

Secondary outcomes (6)
  1. Percentage of Participants With Death as Outcome, Adverse Events (AEs), Treatment-related AEs, Serious Adverse Events (SAEs), Treatment-related SAEs, and AEs Leading to Discontinuation

    AE=any new untoward medical occurrence or worsening of a preexisting medical condition that does not necessarily have a causal relationship with treatment. SAE=any untoward medical occurrence that at any dose results in death, persistent or significant disability/incapacity, drug dependency, or drug abuse; prolongs inpatient hospitalization; or is life-threatening, a congenital anomaly/birth defect, or an important medical event. Treatment related=possibly, probably, or certainly related to and of unknown relationship to study treatment.

    Measured: Months 1 to 12, continuously, and Months 12 to 24, continuously

  2. Percentage of Participants With On-study AEs of Special Interest

    GI=gastrointestinal. AE=any new untoward medical occurrence or worsening of a preexisting medical condition that does not necessarily have a causal relationship with treatment. Grade 1=mild; Grade 2=moderate; Grade 3=severe and undesirable; Grade 4=life-threatening or disabling; Grade 5=death. Percentages based on the number of participants with a specific grade at baseline. Participants without on-study test values for a particular laboratory analyte are not included in the reporting of that analyte.

    Measured: Months 1 to 12, continuously, and Months 12 to 24, continuously

  3. Median Time to MMolR

    Time to MMolR is defined as the time from first treatment dose until measurement criteria are first met for MMolR. MMolR is defined as a reduction in transcript levels of the BCR-ABL gene of at least 3 log from baseline.

    Measured: At 3, 6, 9, and 12 months from baseline

  4. Percentage of Participants With Complete Cytogenetic Response

    Cytogenetic response is based on the prevalence of Ph+ metaphases among cells in metaphase in a bone marrow sample.

    Measured: At 6 and 12 months from baseline

  5. Median Time to Treatment Failure

    Time to treatment failure is defined as the time in days from randomization to progressive disease documented by the investigator, to death from any cause without prior progression, or to early treatment discontinuation for any reason, whichever occurs first. Participants without disease progression or who do not die and complete the 12-month study treatment are censored on the date of their last molecular, cytogenetic, or hematologic assessment.

    Measured: Randomization to disease progression, death, or discontinuation (to 12 months)

  6. Median Time to Progression-free Survival

    Progression-free survival is defined as the time in days from randomization to progressive disease documented by the investigator or to death from any cause without prior progression. Participants without progressive disease or who do not die and complete the 12-month treatment are censored on the date of their last molecular, cytogenetic, or hematologic assessment.

    Measured: Randomization to disease progression or death (to 12 months)

Timeline

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

  1. First posted3 May 2006 (estimated)
  2. Study startAug 2006
  3. Primary completionJan 2010
  4. Study completionJan 2010

Why it stopped: Terminated due to slow participant accrual

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
52 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00320190
Sponsor's protocol ID
CA180-043
Other IDs
EUDRACT Number: 2005-005153-22
Status last verified
Jul 2011
First submitted
1 May 2006
Last updated
30 Oct 2013
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Imatinib and Dasatinib in people with Leukemia, Myeloid, Chronic, run by Bristol-Myers Squibb at 27 sites in 11 countries.

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 3 inclusion and 7 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 30 Oct 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 27 sites in France, United Kingdom, Russia, Sweden, Belgium and 6 more countries. 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 phase mean?

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?

Yes. Results are posted in the registry (first posted 7 Jul 2011). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Percentage of Participants With Chronic Phase Chronic Myeloid Leukemia Who Have a Major Molecular Response (MMolR) (time frame: At 12 months from baseline). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 30 Oct 2013.

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