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Trial Title:
Venetoclax After TKI to Target Persisting Stem Cells in CML
NCT ID:
NCT05701215
Condition:
Chronic Myeloid Leukemia
Conditions: Official terms:
Leukemia, Myelogenous, Chronic, BCR-ABL Positive
Venetoclax
Study type:
Interventional
Study phase:
Phase 2
Overall status:
Recruiting
Study design:
Allocation:
N/A
Intervention model:
Single Group Assignment
Primary purpose:
Treatment
Masking:
None (Open Label)
Intervention:
Intervention type:
Drug
Intervention name:
Venetoclax
Description:
Venetoclax will be taken orally once daily (400 mg) for 12 months
Arm group label:
Venetoclax
Summary:
There is currently no available treatment, capable to increase the rate of sustained deep
molecular remissions after TKI discontinuation in CML. Venetoclax could be such a drug.
The study will provide unprecedented biological insights on the effects of venetoclax in
controlling minimal residual stem cell disease induced by long-term prior TKI therapy. If
the study would be positive, the findings could become practice changing for patients in
deep molecular remission under TKI and willing to tolerate a temporary additional
treatment.
Criteria for eligibility:
Criteria:
Inclusion Criteria:
1. Patients with diagnosis of chronic phase CML with cytogenetic confirmation of the
Philadelphia (Ph) chromosome
2. Ph negative cases or patients with variant translocations who are BCR::ABL1 positive
in multiplex PCR are also eligible
3. Typical b2a2 and/or b3a2 BCR::ABL1 transcripts
4. Subject must be ≥ 18 years of age
5. Stored DNA from initial diagnosis (prior TKI treatment) for BCR::ABL1 breakpoint
analysis
6. BCR::ABL1 transcript level according to the international scale (IS) of MR4 or
better which has been confirmed three times within the past 13 months and was
assessed by an IS-certified reference laboratory, such as of the University Jena or
another MR4-certified laboratory in Germany
7. At least 3 years of TKI therapy
8. Patients who failed to discontinue TKI in a prior discontinuation attempt are still
eligible if they fulfill criteria 6 after retreatment with TKI
9. WHO performance status 0-2
10. Adequate end organ function as defined by:
- Total bilirubin (TBL) < 3 x Upper Limit of Normal (ULN); patients with
Gilbert's syndrome may only be included if TBL ≤ 3.0 x ULN or direct bilirubin
≤ 1.5 x ULN,
- Creatinine Clearance (CrCl) ≥ 30 millilitres per minute (mL/min) as calculated
using Cockcroft-Gault formula, Serum lipase ≤ 1.5 x ULN. For serum lipase > ULN
1.5 x ULN, value must be considered not clinically significant and not
associated with risk factors for acute pancreatitis.
11. Patients must have the following laboratory values within normal limits or corrected
to within normal limits with supplements:
- Potassium (potassium increase of up to 6.0 mmol/L is acceptable if associated
with CrCl ≥ 90 mL/min),
- Total calcium (corrected for serum albumin); (calcium increase of up to 12.5
mg/dl or 3.1 mmol/L is acceptable if associated with CrCl ≥ 90 mL/min),
- Magnesium (magnesium increase of up to 3.0 mg/dL or 1.23 mmol/L if associated
with CrCl ≥ 90 mL/min),
- For patients with mild to moderate renal impairment (CrCl ≥ 30 mL/min and <90
mL/min) - potassium, total calcium (corrected for serum albumin) and magnesium
should be within normal limits or corrected to within normal limits with
supplements.
12. Women of childbearing age must use a highly effective method of contraception while
using venetoclax. Women using hormonal contraceptives should also use a barrier
method.
13. Negative pregnancy test in women of childbearing potential
14. Subject must voluntarily sign and date an informed consent
Exclusion Criteria:
1. Concomitant use of strong CYP3A-Inhibtors (e.g., itraconazole, ketoconazole,
posaconazole, voriconazole, clarithromycin, ritonavir) is contraindicated
2. Concomitant use of moderate CYP3A-Inhibitors (e.g., ciprofloxacin, diltiazem,
erythromycin, fluconazole, verapamil) should be avoided.
3. Grapefruit products, Seville oranges, and starfruit (carambola) should be avoided
during treatment with venetoclax as they contain inhibitors of CYP3A
4. Concomitant use of venetoclax with P-gp and BCRP inhibitors
5. Concomitant use of venetoclax with strong CYP3A inducers (e.g., carbamazepine,
phenytoin, rifampin) or moderate CYP3A inducers (e.g., bosentan, efavirenz,
etravirine, modafinil, nafcillin) should be avoided
6. Concomitant use of preparations containing St. John´s wort
7. Patients with severe renal impairment (Crea-Clearance < 30 ml/min) or on dialysis
8. Patients with severe hepatic impairment
9. Patients who are pregnant or breast feeding, or females of reproductive potential
not employing an effective method of birth control. Female patients must agree to
employ an effective barrier method of birth control throughout the study and for and
for at least 30 days after ending venetoclax treatment
10. Known impaired cardiac function
11. Impaired gastrointestinal function or disease that may alter the absorption of study
drug
12. Patients who have undergone major surgery ≤ 2 weeks prior to starting study drug or
who have not recovered from side effects of such therapy
13. Active or uncontrolled infections at the time of enrolment
14. Known HIV sero-positivity or known active hepatitis B or C infection (HIV testing is
not required)
15. Participation in another clinical study with other investigational drugs within 14
days prior to enrolment
16. Any medical, mental, psychological or psychiatric condition that in the opinion of
the investigator would not permit the patient to complete the study or understand
the patient information
17. Subject has acute leukemia
18. Subject has known active CNS involvement.
19. Hypersensitivity to venetoclax or any component of the formulation
Gender:
All
Minimum age:
18 Years
Maximum age:
N/A
Healthy volunteers:
No
Locations:
Facility:
Name:
Uniklinik der RWTH Aachen
Address:
City:
Aachen
Zip:
52074
Country:
Germany
Status:
Recruiting
Contact:
Last name:
Martina Crysandt, Dr. med.
Email:
mcrysandt@ukaachen.de
Facility:
Name:
Universitätsklinikum Jena
Address:
City:
Jena
Zip:
07747
Country:
Germany
Status:
Recruiting
Contact:
Last name:
Thomas Ernst, Prof. Dr.
Phone:
+49 3641
Phone ext:
9324201
Email:
thomas.ernst@med.uni-jena.de
Start date:
August 31, 2023
Completion date:
December 1, 2025
Lead sponsor:
Agency:
Thomas Ernst, PD Dr. med.
Agency class:
Other
Collaborator:
Agency:
Ludwig-Maximilians - University of Munich
Agency class:
Other
Collaborator:
Agency:
AbbVie
Agency class:
Industry
Source:
University of Jena
Record processing date:
ClinicalTrials.gov processed this data on November 12, 2024
Source: ClinicalTrials.gov page:
https://clinicaltrials.gov/ct2/show/NCT05701215