Chronic Myeloid LeukemiaNCT01805843
Pulmonary Vasculopathy Under Second-line Therapy of Chronic Myeloid Leukemia
An observational study of Chronic Myeloid Leukemia, run by Medical University of Graz at 1 site in Austria.
Trial summary
Chronic myelogenous leukemia (CML) is a chronic myeloproliferative disorder characterized by a translocation between chromosome 9 and 22, leading to a pathogenic tyrosine kinase signal transduction protein. CML can be treated with tyrosine kinase inhibitors (TKIs), which inhibit BCR/ABL kinase, such as imatinib. Read more about this study
- Who is it for?
- Ages 18 to 95 years
- Conditions the study is for
- Chronic Myeloid Leukemia
- What is being tested?
- Echo, exercise echo, and if indicated, right heart catheter
- How many people
- 16 participants
- Where
- 1 siteAustria
- Study dates
- Jul 2012to Jun 2015
- 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 95 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: patients with chronic myeloid leukemia under second-line therapy with dasatinib or nilotinib,
Who may be able to join
- patients with chronic myeloid leukemia under second-line therapy with dasatinib or nilotinib
- written informed consent
Who cannot join
- Manifest pulmonary hypertension
- significant pulmonary disease
- Left-sided heart failure or diastolic compliance dysfunction +
- Hemodynamic relevant valvular disease
- Systemic arterial hypertension (at rest systolic >150 mmHg, diastolic > 90 mmHg, during exercise > 220 mmHg)
- Severe anemia
Show all 12Show fewer
- Uncontrolled supraventricular and ventricular arrhythmias
- Myocardial infarction (within the last 12 months)
- Pulmonary embolism (within the last 12 months)
- Recent therapy changes (within the last 12 months)
- Recent major surgeries (within the last 12 months)
- For exercise tests: musculoskeletal diseases which may unable the exercise tests.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Pulmonary Vascular Changes in Patients With Chronic Myeloid Leukemia With Second-line Therapy Dasatinib vs. Nilotinib
Chronic myelogenous leukemia (CML) is a chronic myeloproliferative disorder characterized by a translocation between chromosome 9 and 22, leading to a pathogenic tyrosine kinase signal transduction protein. CML can be treated with tyrosine kinase inhibitors (TKIs), which inhibit BCR/ABL kinase, such as imatinib. In about 20% of CML patients who are treated by imatinib, a complete cytogenetic response cannot be achieved. The other two novel TKIs (dasatinib and nilotinib), achieve higher rates of complete cytogenetic response and they are proposed as second-line therapy for imatinib-resistant patients or for those who do not tolerate imatinib. Dasatinib inhibits BCR/ABL kinase in about >300 times in vitro in more than imatinib and also inhibits several other kinases, including the Src family. Src tyrosine kinase is crucial for potassium channel function in human pulmonary arteries. Imatinib and nilotinib do not inhibit the Src.
Incident cases of precapillary PH have been reported in patients who have CML treated with the dasatinib. Improvements were usually observed after withdrawal of dasatinib.
This study is designed to identify incident cases of dasatinib-associated PH and describe pulmonary vascular changes induced by dasatinib. As comparison population will be patients who receive another second-line TKI (nilotinib).
Read the detailed description
Doppler echocardiography at rest will be performed in each patient. Patients without exercise capacity limitation an exercise test (Doppler echocardiography with spiroergometry) will be performed. Patients who show elevated SPAP at rest or during exercise (in this study SPAP ≥ 40 mmHg) or with reduced exercise capacity (peak VO2 < 75%) a right heart catheterization (RHC) will be suggested. Additionally for the evaluation of exercise capacity a 6 MWD will be performed. This work- up of patients allows clinical and hemodynamic evaluation.
- Conditions
- Chronic Myeloid Leukemia
- Being tested
- Echo, exercise echo, and if indicated, right heart catheter
- Keywords
- Pulmonary hypertension, chronic myeloid leukemia, dasatinib, nilotinib
- Medical subject headings
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive, Hypertension, Pulmonary
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Echo, exercise echo, and if indicated, right heart catheterOther
routine echocardiography and special measurements of the right heart are performed at rest and during exercise
| Study group | Role | What they receive |
|---|---|---|
| chronic meloid leukemia | echo, exercise echo, and if indicated, right heart catheter Receives: Other: Echo, exercise echo, and if indicated, right heart catheter |
What is being measured
The primary outcome is the main question the study is designed to answer.
systolic pulmonary arterial pressure during exercise (50W)
In patients who undergo stressechocardiography: systolic pulmonary arterial pressure (SPAP) at 50W will be measured and the comparison between patients under dasatinib and nilotinib therapy will be performed.
Measured: at baseline
Secondary outcomes (3)
peak VO2
Mean PAP at rest, mPAP at 50W, peak VO2, 6 minute walk distance (6MWD), N terminal pro brain natriuretic peptide (NT-proBNP) at "dasatinib" vs."nilotinib" patients.
Changes of SPAP at 50 W, pulmonary vascular resistance (PVR) at rest, changes of mPAP at rest and at 50W, peak VO2, 6 MWD, NT-pro BNP- in patients with dasatinib and nilotinib between the baseline and 6 months after.
Measured: At baseline
change of pulmonary arterial pressure
Changes of SPAP at 50 W, pulmonary vascular resistance (PVR) at rest, changes of mPAP at rest and at 50W, peak VO2, 6 MWD, NT-pro BNP- in patients with dasatinib and nilotinib between the baseline and 6 months after.
Measured: between baseline and after 6 months
Pulmonary vascular resistance
In patients who undergo a RHC: pulmonary vascular resistance (PVR) at rest will be measured and the comparison of patients with dasatinib and nilotinib therapy will be performed.
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 posted6 Mar 2013 (estimated)
- Study startJul 2012
- Primary completionJun 2015
- Study completionJun 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Chronic Myeloid LeukemiaStudies of the same condition, open and under way.
- More trials run by Medical University of GrazThe 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
- Prospective
- Enrolment
- 16 participants (actual)
Sponsor and investigators
- Lead sponsor
- Medical University of Graz
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Horst Olschewski, MD, Principal investigator, Medical University of Graz
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01805843
- Sponsor's protocol ID
- 24-311 ex 10/11
- Status last verified
- Sep 2015
- First submitted
- 10 Oct 2012
- Last updated
- 9 Sep 2015
- Results posted
- No
- Data monitoring committee
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 9 Sep 2015. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Pulmonary Vascular Changes in Patients With Chronic Myeloid Leukemia With Second-line Therapy Dasatinib vs. Nilotinib
- ClinicalTrials.gov ID
- NCT01805843
- Acronym / sponsor ID
- 24-311 ex 10/11
- Conditions
- Chronic Myeloid Leukemia
- Keywords
- Pulmonary hypertension, chronic myeloid leukemia, dasatinib, nilotinib
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 16 participants (actual)
- Lead sponsor
- Medical University of GrazUniversity, hospital or other
- Study start
- Jul 2012
- Primary completion
- Jun 2015 (actual)
- Study completion
- Jun 2015 (actual)
- First posted
- 6 Mar 2013 (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.
Chronic myelogenous leukemia (CML) is a chronic myeloproliferative disorder characterized by a translocation between chromosome 9 and 22, leading to a pathogenic tyrosine kinase signal transduction protein. CML can be treated with tyrosine kinase inhibitors (TKIs), which inhibit BCR/ABL kinase, such as imatinib. In about 20% of CML patients who are treated by imatinib, a complete cytogenetic response cannot be achieved. The other two novel TKIs (dasatinib and nilotinib), achieve higher rates of complete cytogenetic response and they are proposed as second-line therapy for imatinib-resistant patients or for those who do not tolerate imatinib. Dasatinib inhibits BCR/ABL kinase in about >300 times in vitro in more than imatinib and also inhibits several other kinases, including the Src family. Src tyrosine kinase is crucial for potassium channel function in human pulmonary arteries. Imatinib and nilotinib do not inhibit the Src.
Incident cases of precapillary PH have been reported in patients who have CML treated with the dasatinib. Improvements were usually observed after withdrawal of dasatinib.
This study is designed to identify incident cases of dasatinib-associated PH and describe pulmonary vascular changes induced by dasatinib. As comparison population will be patients who receive another second-line TKI (nilotinib).
Detailed description
Doppler echocardiography at rest will be performed in each patient. Patients without exercise capacity limitation an exercise test (Doppler echocardiography with spiroergometry) will be performed. Patients who show elevated SPAP at rest or during exercise (in this study SPAP ≥ 40 mmHg) or with reduced exercise capacity (peak VO2 < 75%) a right heart catheterization (RHC) will be suggested. Additionally for the evaluation of exercise capacity a 6 MWD will be performed. This work- up of patients allows clinical and hemodynamic evaluation.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| chronic meloid leukemia | – | Other: Echo, exercise echo, and if indicated, right heart catheterecho, exercise echo, and if indicated, right heart catheter |
Who may qualify
- Ages
- 18 to 95 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- patients with chronic myeloid leukemia under second-line therapy with dasatinib or nilotinib,
Key inclusion criteria (2 listed)
- patients with chronic myeloid leukemia under second-line therapy with dasatinib or nilotinib
- written informed consent
Key exclusion criteria (12 listed)
- Manifest pulmonary hypertension
- significant pulmonary disease
- Left-sided heart failure or diastolic compliance dysfunction +
- Hemodynamic relevant valvular disease
- Systemic arterial hypertension (at rest systolic >150 mmHg, diastolic > 90 mmHg, during exercise > 220 mmHg)
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 |
|---|---|---|
| Echo, exercise echo, and if indicated, right heart catheterroutine echocardiography and special measurements of the right heart are performed at rest and during exercise | Other | chronic meloid leukemia |
Primary outcome
systolic pulmonary arterial pressure during exercise (50W)
Time frame: at baseline
In patients who undergo stressechocardiography: systolic pulmonary arterial pressure (SPAP) at 50W will be measured and the comparison between patients under dasatinib and nilotinib therapy will be performed.
3 secondary outcomes
peak VO2
Time frame: At baseline
change of pulmonary arterial pressure
Time frame: between baseline and after 6 months
Pulmonary vascular resistance
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 9 Sep 2015.
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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.
Horst Olschewski, MD principal investigator
Medical University of Graz
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 Chronic Myeloid Leukemia, run by Medical University of Graz at 1 site in Austria.
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 2 inclusion and 12 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 9 Sep 2015. 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 Austria. 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?
systolic pulmonary arterial pressure during exercise (50W) (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 9 Sep 2015.