Acute Myeloblastic LeukemiaCOALANCT05499611
Impact of Optical Genome Mapping in Acute Myeloblastic Leukemia
An observational study of Acute Myeloblastic Leukemia, run by University Hospital, Bordeaux at 1 site in France.
Trial summary
A retrospective study using a new technology will be performed: the Optical Genome Mapping (OGM) on acute myelogenous leukemia (AML) samples stored at the CRB-Cancer of the Bordeaux University Hospital and annotated in the DATAML clinical database. Read more about this study
- Who is it for?
- Ages 18 to 65 years
- Conditions the study is for
- Acute Myeloblastic Leukemia
- How many people
- 120 participants
- Where
- 1 siteFrance
- Study dates
- 27 Jan 2023to 31 Dec 2024
- 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 18 to 65 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Patients with diagnosis of AML (with a minimum follow-up of 24 months)
Who may be able to join
- Patients ≥ 18 years and ≤ 65 years of age who have been treated with intensive chemotherapy
- Diagnosis of AML (with a minimum follow-up of 24 months)
- Presence of samples included in CRB-K in the AML collection
- Cytogenetic data available: karyotype with 1-3 abnormalities present in one or more clones, excluding recurrent WHO abnormalities (t(8;21), inv(16) or t(16;16), t(9;11), t(v;11)(v;q23. 3), t(6;9), inv(3) or t(3;3) and t(9;22)) or assigned by itself to an unfavorable prognosis: -5 or del(5q); -7; -17/abn(17p).
- Molecular data available for the following genes: ASXL1, CEBPA, FLT3-ITD, NPM1, RUNX1 and TP53 (the list of genes of interest may be adapted according to the upcoming ELN 2022 classification)
Who cannot join
- Samples not included in the CRB-K (lack of consent, insufficient material...)
- Karyotype with one of the following abnormalities: (t(8;21), inv(16) or t(16;16), t(9;11), t(v;11)(v;q23.3), t(6;9), inv(3) or t(3;3), and t(9;22)) or associated with an unfavorable prognosis on its own: -5 or del(5q); -7; -17/abn(17p)
- Karyotype without clonal abnormality
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Contribution of Optical Genome Mapping to the Prognostic Classification of Acute Myeloblastic Leukemia Evaluation of the Clinical Utility of DNA Optical Mapping in the Management of Acute Myeloblastic Leukemia (COALA)
A retrospective study using a new technology will be performed: the Optical Genome Mapping (OGM) on acute myelogenous leukemia (AML) samples stored at the CRB-Cancer of the Bordeaux University Hospital and annotated in the DATAML clinical database. The main objective is to estimate the proportion of AML patients for whom OGM detects at least one additional abnormality compared to conventional techniques. This study will constitute an important step in the validation of COA as a reference technique for cytogenetic analysis in AML, replacing the classical techniques, and could also constitute a first argument for redesigning the prognostic classification of AML.
Read the detailed description
In AML prognostic classifications, such as the ELN 2017 classification, which are used to guide treatment choices in the majority of protocols, rely heavily on genetic abnormalities. The Optical Genome Mapping (OGM) is a new technology that combines in one and the same technique the results of karyotype, FISH and SNP-Array, the latter being very little used in current practice in AML. OGM with greater sensitivity and a better resolution than the usual techniques should therefore allow us to identify more abnormalities than conventional cytogenetics; we would then like to determine whether these additional abnormalities have a prognostic impact, i.e., whether they lead to reclassification of patients initially classified as "favorable" or "intermediate" into the "unfavorable" prognostic category, with therapeutic consequences.
A retrospective study using the OGM is will be performed on samples stored at the CRB-Cancer of the Bordeaux University Hospital and annotated in the DATAML clinical database. In an original way, the focus will be on AML patients in whom 1 to 3 chromosomal abnormalities (non-recurrent WHO, not related to an unfavourable prognosis) have already been demonstrated by classical techniques, making the hypothesis that it is in this population that we would more easily have patients who could fall into the definition of the complex karyotype and thus into the unfavourable risk category.
OGM should therefore reveal a greater number of abnormalities which would allow a better definition of karyotypes with abnormalities, the number of complex and/or monosomal karyotypes and a better stratification of the prognosis of these patients with AML. This is an applied translational research study based on innovative technology that will define the place of OGM over current techniques used in the initial management of AML patients, and it may well become the new standard for cytogenetic analysis of AML in the coming years.
- Conditions
- Acute Myeloblastic Leukemia
- Keywords
- Optical Genome Mapping (OGM), Acute Myeloblastic Leukemia (AML), Complex Karyotype, Prognosis
- Medical subject headings
- Leukemia, Myeloid, Acute
What is being measured
The primary outcome is the main question the study is designed to answer.
Proportion of patients with more abnormalities detected by OGM than by conventional cytogenetics
Measured: At baseline
Secondary outcomes (5)
Average number of additional abnormalities detected by OGM compared to conventional techniques
Measured: At baseline
Proportion of patients reclassified as complex and/or monosomal karyotype according to current ELN definitions
Measured: At baseline
Proportion of patients for whom a change in therapeutic management could have been proposed
Measured: From baseline to Month 36
Comparison of overall survival and event-free survival curves of patients reclassified to the unfavorable group to those of the intermediate and unfavorable groups in a historical cohort
Measured: From baseline to Month 36
Interobserver reproducibility for interpretation of OGM results (Fleiss Kappa coefficient)
Measured: At baseline
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted12 Aug 2022
- Study start27 Jan 2023
- Primary completion30 Apr 2024
- Study completion31 Dec 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Acute Myeloblastic LeukemiaStudies of the same condition, open and under way.
- More trials run by University Hospital, BordeauxThe 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
- Cohort
- Time perspective
- Retrospective
- Enrolment
- 120 participants (actual)
Sponsor and investigators
- Lead sponsor
- University Hospital, Bordeaux
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05499611
- Sponsor's protocol ID
- CHUBX 2022/28
- Acronym
- COALA
- Status last verified
- Aug 2024
- First submitted
- 10 Aug 2022
- Last updated
- 30 Jul 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 30 Jul 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Contribution of Optical Genome Mapping to the Prognostic Classification of Acute Myeloblastic Leukemia Evaluation of the Clinical Utility of DNA Optical Mapping in the Management of Acute Myeloblastic Leukemia (COALA)
- ClinicalTrials.gov ID
- NCT05499611
- Acronym / sponsor ID
- COALA / CHUBX 2022/28
- Conditions
- Acute Myeloblastic Leukemia
- Keywords
- Optical Genome Mapping (OGM), Acute Myeloblastic Leukemia (AML), Complex Karyotype, Prognosis
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 120 participants (actual)
- Lead sponsor
- University Hospital, BordeauxUniversity, hospital or other
- Study start
- 27 Jan 2023 (actual)
- Primary completion
- 30 Apr 2024 (actual)
- Study completion
- 31 Dec 2024 (actual)
- First posted
- 12 Aug 2022 (actual)
- 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.
A retrospective study using a new technology will be performed: the Optical Genome Mapping (OGM) on acute myelogenous leukemia (AML) samples stored at the CRB-Cancer of the Bordeaux University Hospital and annotated in the DATAML clinical database. The main objective is to estimate the proportion of AML patients for whom OGM detects at least one additional abnormality compared to conventional techniques. This study will constitute an important step in the validation of COA as a reference technique for cytogenetic analysis in AML, replacing the classical techniques, and could also constitute a first argument for redesigning the prognostic classification of AML.
Detailed description
In AML prognostic classifications, such as the ELN 2017 classification, which are used to guide treatment choices in the majority of protocols, rely heavily on genetic abnormalities. The Optical Genome Mapping (OGM) is a new technology that combines in one and the same technique the results of karyotype, FISH and SNP-Array, the latter being very little used in current practice in AML. OGM with greater sensitivity and a better resolution than the usual techniques should therefore allow us to identify more abnormalities than conventional cytogenetics; we would then like to determine whether these additional abnormalities have a prognostic impact, i.e., whether they lead to reclassification of patients initially classified as "favorable" or "intermediate" into the "unfavorable" prognostic category, with therapeutic consequences.
A retrospective study using the OGM is will be performed on samples stored at the CRB-Cancer of the Bordeaux University Hospital and annotated in the DATAML clinical database. In an original way, the focus will be on AML patients in whom 1 to 3 chromosomal abnormalities (non-recurrent WHO, not related to an unfavourable prognosis) have already been demonstrated by classical techniques, making the hypothesis that it is in this population that we would more easily have patients who could fall into the definition of the complex karyotype and thus into the unfavourable risk category.
OGM should therefore reveal a greater number of abnormalities which would allow a better definition of karyotypes with abnormalities, the number of complex and/or monosomal karyotypes and a better stratification of the prognosis of these patients with AML. This is an applied translational research study based on innovative technology that will define the place of OGM over current techniques used in the initial management of AML patients, and it may well become the new standard for cytogenetic analysis of AML in the coming years.
Study design
- Observational model
- Cohort
- Time perspective
- Retrospective
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Patients with diagnosis of AML (with a minimum follow-up of 24 months)
Key inclusion criteria (5 listed)
- Patients ≥ 18 years and ≤ 65 years of age who have been treated with intensive chemotherapy
- Diagnosis of AML (with a minimum follow-up of 24 months)
- Presence of samples included in CRB-K in the AML collection
- Cytogenetic data available: karyotype with 1-3 abnormalities present in one or more clones, excluding recurrent WHO abnormalities (t(8;21), inv(16) or t(16;16), t(9;11), t(v;11)(v;q23. 3), t(6;9), inv(3) or t(3;3) and t(9;22)) or assigned by itself to an unfavorable prognosis: -5 or del(5q); -7; -17/abn(17p).
- Molecular data available for the following genes: ASXL1, CEBPA, FLT3-ITD, NPM1, RUNX1 and TP53 (the list of genes of interest may be adapted according to the upcoming ELN 2022 classification)
Key exclusion criteria (3 listed)
- Samples not included in the CRB-K (lack of consent, insufficient material...)
- Karyotype with one of the following abnormalities: (t(8;21), inv(16) or t(16;16), t(9;11), t(v;11)(v;q23.3), t(6;9), inv(3) or t(3;3), and t(9;22)) or associated with an unfavorable prognosis on its own: -5 or del(5q); -7; -17/abn(17p)
- Karyotype without clonal abnormality
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Proportion of patients with more abnormalities detected by OGM than by conventional cytogenetics
Time frame: At baseline
5 secondary outcomes
Average number of additional abnormalities detected by OGM compared to conventional techniques
Time frame: At baseline
Proportion of patients reclassified as complex and/or monosomal karyotype according to current ELN definitions
Time frame: At baseline
Proportion of patients for whom a change in therapeutic management could have been proposed
Time frame: From baseline to Month 36
Comparison of overall survival and event-free survival curves of patients reclassified to the unfavorable group to those of the intermediate and unfavorable groups in a historical cohort
Time frame: From baseline to Month 36
Interobserver reproducibility for interpretation of OGM results (Fleiss Kappa coefficient)
Time frame: At baseline
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 30 Jul 2025.
- Individual participant dataSharing planned: No
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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.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Acute Myeloblastic Leukemia, run by University Hospital, Bordeaux at 1 site in France.
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 5 inclusion and 3 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: finished, as of the sponsor's last update on 30 Jul 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in France. 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.
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?
Proportion of patients with more abnormalities detected by OGM than by conventional cytogenetics (time frame: At 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 Jul 2025.