CML Treated With Bosutinib After Relapse (BOSTRO)

PETHEMA Foundation

Status and phase

Completed

Phase 2

Conditions

Chronic Myeloblastic Leukaemia

Treatments

Drug: Bosutinib

Study type

Interventional

Funder types

Other

Identifiers

NCT02445742

BOS-IIG-01

Details and patient eligibility

About

Prospective, open label, multicenter, phase II study evaluating correlation of SNPs with efficacy and toxicity in patients treated with Bosutinib. A total of 50 patients with previously treated Ph+ chronic phase CML will be included in the study

Enrollment

30 patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion and exclusion criteria

Inclusion Criteria:

Signed and dated informed consent form.
Patients with chronic Ph + CML who presented a non-optimal response at 3 months prior to ITK treatment (imatinib, nilotinib, dasatinib). It is defined as a non-optimal response:

BCR-ABL> 10% per qRT-PCR (IS) at 3 months of initiation of treatment. BCR / ABL ≥ 1% per qRT-PCR (IS) at 6 months of initiation of treatment. BCR / ABL> 0.1% qRT-PCR (IS) at 12 months of initiation of treatment. BCR-ABL1> 0.1% qRT-PCR (IS) at any time after 12 months of treatment initiation.

ECOG Performance Status of 0 or 1.
Recovery at Grade 0-1, or at the baseline value of any pretreatment toxicity, except for alopecia. Cases with significant toxicity will be analyzed individually by the study coordinators
Able to take daily oral capsules
Adequate bone marrow function:
1. Absolute neutrophil count > 1000/mm3 (>1000 x109/L)
2. Platelets ≥ 100,000/mm3 (>100 x109/L)
3. absent any platelet transfusions during the preceding 14 days.
Adequate hepatic, and renal function:
- AST/ALT ≤ 2.5 × upper limit of normal (ULN) or ≤ 5 × ULN if attributable to liver involvement of leukemia
- Total bilirubin ≤ 1.5 × ULN
- Creatinine ≤ 1.5 × ULN
Age > 18 years
Willingness of male and female subjects, who are not surgically sterile or postmenopausal, to use reliable methods of birth control (oral contraceptives, intrauterine devices, or barrier methods used with a spermicide) for the duration of the study and for 30 days after the last dose of Bosutinib.

Exclusion Criteria

Subjects with Philadelphia chromosome and bcr-abl negative CML.
Overt leptomeningeal leukemia. Subjects must be free of CNS involvement for a minimum of 2 months. Subjects with symptoms of CNS involvement must have a diagnostic lumbar puncture prior to study enrollment.
Subjects with extramedullary disease only.
Prior stem cell transplantation.
Major surgery within 14 days or radiotherapy within 7 days before the first dose of Bosutinib (recovery from any previous surgery should be complete before day 1)
A history of a clinically significant ventricular arrhythmia, congenital or acquired prolonged QT interval, a baseline QTcF > 0.47 sec (average of triplicate readings) or unexplained syncope, uncontrolled or symptomatic congestive heart failure (CHF) within 3 months, or myocardial infarction (MI) within 6 months.
Concomitant use of or need for medications known to prolong the QT interval
Uncorrected hypomagnesemia or hypokalemia due to potential effects on the QT interval
Recent (within 30 days of study entry) or ongoing clinically significant gastrointestinal disorder (e.g., malabsorption, short bowel syndrome, bleeding, or grade >1 diarrhea, nausea or emesis lasting more than 2 days, despite adequate medical therapy)
Pregnant or breastfeeding women
Evidence of serious active infection, or significant medical or psychiatric illness
Known seropositivity to HIV, or current acute or chronic Hepatitis B or Hepatitis C (antigen positive), cirrhosis, hypokalemia (any grade), or clinically significant abnormal laboratory finding that would, in the investigator's judgment, make the subject inappropriate for this study.