LeukemiaNCT01419496
Study of Proteins in Promoting Chemotherapy Resistance in Samples From Patients With Acute Myeloid Leukemia
An observational study of Leukemia, run by Children's Oncology Group.
Trial summary
RATIONALE: Studying samples of tissue from patients with cancer in the laboratory may help doctors learn more about cancer and development of drug resistance in patients. PURPOSE: This research trial is studying proteins that may promote chemotherapy resistance in samples from patients with acute myeloid leukemia. Read more about this study
- Who is it for?
- Ages Up to 30 years
- Conditions the study is for
- Leukemia
- What is being tested?
- protein expression analysis, flow cytometry and laboratory biomarker analysis
- How many people
- 40 participants
- Where
- No sites listed yet
- Study dates
- Sep 2011to May 2016
- Phase
- Observational
- 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 Up to 30 years
- All sexes
- No healthy volunteers
- Child, Adult
Study population: Patients with acute myeloid leukemia
DISEASE CHARACTERISTICS:
- Paired diagnostic and relapsed cryopreserved samples from patients with acute myeloid leukemia
PATIENT CHARACTERISTICS:
- Not specified
PRIOR CONCURRENT THERAPY:
- Not specified
About this study
Official title: Identifying Stat3-Dependent Chemotherapy Resistance Pathways in Relapsed AML
RATIONALE: Studying samples of tissue from patients with cancer in the laboratory may help doctors learn more about cancer and development of drug resistance in patients.
PURPOSE: This research trial is studying proteins that may promote chemotherapy resistance in samples from patients with acute myeloid leukemia.
Read the detailed description
OBJECTIVES:
- Investigate whether changes in prosurvival signaling occur by comparing activation of the signal transducer and activator of transcription-3 (Stat3) and Stat5 pathways in paired diagnostic and relapse samples.
- Investigate changes in leukemia cell responses to extrinsic cues from the environment change, using a bone marrow stromal-cell co-culture model of chemotherapy resistance.
OUTLINE: Cryopreserved samples are analyzed for Stat3 and Stat5 expression by flow cytometry and in vitro chemotherapy sensitivity.
- Conditions
- Leukemia
- Being tested
- protein expression analysis, flow cytometry, laboratory biomarker analysis
- Keywords
- recurrent adult acute myeloid leukemia, recurrent childhood acute myeloid leukemia, adult acute myeloid leukemia with 11q23 (MLL) abnormalities, adult acute myeloid leukemia with inv(16)(p13;q22), adult acute myeloid leukemia with t(15;17)(q22;q12), adult acute myeloid leukemia with t(16;16)(p13;q22), adult acute myeloid leukemia with t(8;21)(q22;q22), adult acute myeloid leukemia with del(5q)
- Medical subject headings
- Leukemia, Leukemia, Myeloid, Acute, Congenital Abnormalities
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
protein expression analysisGenetic
flow cytometryOther
laboratory biomarker analysisOther
What is being measured
The primary outcome is the main question the study is designed to answer.
Changes in Stat3 and Stat5 in paired diagnostic and relapsed AML samples
Reduction in chemotherapy sensitivity by relapsed samples compared to diagnostic samples
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted18 Aug 2011 (estimated)
- Study startSep 2011
- Primary completionMay 2016
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for LeukemiaStudies of the same condition, open and under way.
- More trials run by Children's Oncology GroupThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case only
- Time perspective
- Retrospective
- Enrolment
- 40 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Children's Oncology Group
- Sponsor type
- Research network
- Collaborators
- National Cancer Institute (NCI)
- Responsible party
- Sponsor
- Investigators
- Michele S. Redell, MD, PhD, Principal investigator, Texas Children's Cancer Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01419496
- Sponsor's protocol ID
- AAML12B1
- Other IDs
- COG-AAML12B1, AAML12B1, NCI-2011-02984
- Status last verified
- May 2016
- First submitted
- 17 Aug 2011
- Last updated
- 18 May 2016
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 18 May 2016. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Identifying Stat3-Dependent Chemotherapy Resistance Pathways in Relapsed AML
- ClinicalTrials.gov ID
- NCT01419496
- Acronym / sponsor ID
- AAML12B1
- Conditions
- Leukemia
- Keywords
- recurrent adult acute myeloid leukemia, recurrent childhood acute myeloid leukemia, adult acute myeloid leukemia with 11q23 (MLL) abnormalities, adult acute myeloid leukemia with inv(16)(p13;q22), adult acute myeloid leukemia with t(15;17)(q22;q12), adult acute myeloid leukemia with t(16;16)(p13;q22), adult acute myeloid leukemia with t(8;21)(q22;q22), adult acute myeloid leukemia with del(5q)
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 40 participants (estimated)
- Lead sponsor
- Children's Oncology GroupResearch network
- Collaborators
- National Cancer Institute (NCI)
- Study start
- Sep 2011
- Primary completion
- May 2016 (actual)
- First posted
- 18 Aug 2011 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
RATIONALE: Studying samples of tissue from patients with cancer in the laboratory may help doctors learn more about cancer and development of drug resistance in patients.
PURPOSE: This research trial is studying proteins that may promote chemotherapy resistance in samples from patients with acute myeloid leukemia.
Detailed description
OBJECTIVES:
- Investigate whether changes in prosurvival signaling occur by comparing activation of the signal transducer and activator of transcription-3 (Stat3) and Stat5 pathways in paired diagnostic and relapse samples.
- Investigate changes in leukemia cell responses to extrinsic cues from the environment change, using a bone marrow stromal-cell co-culture model of chemotherapy resistance.
OUTLINE: Cryopreserved samples are analyzed for Stat3 and Stat5 expression by flow cytometry and in vitro chemotherapy sensitivity.
Study design
- Observational model
- Case only
- Time perspective
- Retrospective
Who may qualify
- Ages
- Up to 30 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult
- Study population
- Patients with acute myeloid leukemia
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| protein expression analysis | Genetic | – |
| flow cytometry | Other | – |
| laboratory biomarker analysis | Other | – |
Primary outcome
Changes in Stat3 and Stat5 in paired diagnostic and relapsed AML samples
Reduction in chemotherapy sensitivity by relapsed samples compared to diagnostic samples
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 18 May 2016.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Michele S. Redell, MD, PhD principal investigator
Texas Children's Cancer Center
Questions about this trial
What is this clinical trial studying?
An observational study of Leukemia, run by Children's Oncology Group.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
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: finished, as of the sponsor's last update on 18 May 2016. Status can change between updates, so confirm with the study contact before making plans.
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.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
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?
Changes in Stat3 and Stat5 in paired diagnostic and relapsed AML samples. The study lists 2 primary outcomes in all. 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 18 May 2016.