A Phase II, Single Arm, Open Label Study of Treatment-free Remission After Achieving Sustained MR4.5 on Nilotinib (ENESTop)
This study is currently recruiting participants.
Verified May 2013 by Novartis
Information provided by (Responsible Party):
Novartis ( Novartis Pharmaceuticals )
First received: October 1, 2012
Last updated: May 2, 2013
Last verified: May 2013
A clinical research study to find out if it is safe to stop the drug nilotinib (Tasigna) in chronic myeloid leukemia (CML) patients. Patients who started treatment with imatinib (Gleevec) when they were first diagnosed with CML, then switched to nilotinib (Tasigna) for at least 2 years with the combined time on imatinib (Gleevec) and nilotinib (Tasigna) for at least 3 years and have very small amount of leukemia cells remaining after the nilotinib (Tasigna) treatment will qualify for the study.
Chronic Myeloid Leukemia
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
||A Phase II, Single Arm, Open Label Study of Treatment-free Remission After Achieving Sustained MR4.5 on Nilotinib (ENESTop)
Primary Outcome Measures:
- No documented confirmed loss of MR4, no documented loss of MMR and no re-starting of nilotinib therapy [ Time Frame: First 12 months following nilotinib cessation. ] [ Designated as safety issue: No ]
Proportion of patients without confirmed loss of MR4 or loss of MMR within 12 months following nilotinib TFR is calculated by dividing the number of patients with no documented confirmed loss of MR4, no documented loss of MMR and no re-starting of nilotinib therapy in the first 12 months after starting nilotinib TFR phase by the number of patients who entered nilotinib TFR phase.
Secondary Outcome Measures:
- No documented confirmed loss of MR4, no documented loss of MMR and no re-starting of nilotinib therapy in the first 24, 36, and 48 months following nilotinib cessation. [ Time Frame: 24, 36 and 48 months following nilotinib cessation ] [ Designated as safety issue: No ]
Proportion of patients without confirmed loss of MR4 or loss of MMR within 24, 36, and 48 months following nilotinib cessation is calculated by dividing the number of patients with no documented confirmed loss of MR4, no documented loss of MMR and no re-starting of nilotinib therapy in the first 24, 36, and 48 months after starting nilotinib TFR phase by the number of patients who entered the nilotinib TFR phase.
- Progression to AP/BC or death where the "failure" event is the earliest occurrence of the following event: progression to AP/BC or death from any cause. [ Time Frame: study duration ] [ Designated as safety issue: Yes ]
Kaplan-Meier (KM) estimation of PFS. PFS is measured from the date of start of nilotinib TFR phase to the date of the earliest of the event: progression to AP/BC, or death from any cause. Patients not known to have recurred or died on or before the cut-off date for the KM analysis will have their PFS interval right-censored at the earlier of the date of their last assessment (cytogenetic, hematology or extramedullary) for patients who are still on study and at the date of last contact for patients are in follow-up.
- Treatment free survival (TFS) defined as lack any of the following events: loss of MMR, confirmed loss of MR4, re-start of Nilotinib treatment, progression to AP/BC or death from any cause. [ Time Frame: study duration ] [ Designated as safety issue: Yes ]
TFS is measured from the date of the start of the nilotinib TFR phase to the date of the earliest of the following: loss of MMR, confirmed loss of MR4, re-start of nilotinib treatment, progression to AP/BC or death from any cause. Patients not known to have had any of the events or died on or before the cut-off date for the KM analysis will have their TFS interval right-censored at the earlier of the date of their last assessment (PCR, cytogenetic, hematology or extramedullary) for patients who are still on study and at the date of last contact for patients are in follow-up.
- Overall survival (OS) defined as the time from the date of cessation of nilotinib therapy to the date of death from any cause. [ Time Frame: study duration ] [ Designated as safety issue: Yes ]
Kaplan-Meier (KM) estimation of OS. OS is measured from the date of start of nilotinib TFR phase to the date of death from any cause. If a patient is not known to have died, survival will be censored at the date of last contact.
- BCR-ABL transcript changes within 12 months after re-start of nilotinib therapy [ Time Frame: within 12 months after re-start of nilotinib therapy ] [ Designated as safety issue: No ]
Descriptive statistics of BCR-ABL over time after re-start of nilotinib therapy.
| Estimated Enrollment:
| Study Start Date:
| Estimated Study Completion Date:
| Estimated Primary Completion Date:
||July 2018 (Final data collection date for primary outcome measure)
70 patients who maintain MR4.5 during the one year nilotinib consolidation phase will stop treatment when they enter the treatment-free remission (TFR) phase
Nilotinib will be labeled as AMN107 and supplied as 150 mg and/or 200 mg hard gelatin capsule. Nilotinib will not be dosed by weight or body surface area. Nilotinib will be administered orally at 300 mg twice daily (BID) or 400 mg BID, at approximately 12 hour intervals, and must not be taken with food. The capsules should be swallowed whole with water. No food should be consumed for at least 2 hours before the dose is taken and no additional food should be consumed for at least one hour after the dose is taken. Patients who were previously treated with 400 mg BID, and required subsequent permanent dose reduction to 400 mg QD will be allowed to enter this study on the same dose, 400 mg once daily.
|Genders Eligible for Study:
|Accepts Healthy Volunteers:
- Male or female patients >= 18 years of age
- ECOG Performance Status of 0, 1, or 2
- Patient with diagnosis of BCR-ABL positive CML
- Patient has received a minimum of 3 years of tyrosine kinase inhibitor treatment (first with imatinib and then switched to nilotinib) since initial diagnosis
- Patient has at least 2 years of nilotinib treatment prior to study entry.
- Patient has achieved MR4.5 (local laboratory assessment) during nilotinib treatment, and determined by a Novartis designated central PCR lab assessment at screening
Adequate end organ function as defined by:
- Direct bilirubin ≤ 15umol/L
- SGOT(AST) and SGPT(ALT) < 3 x ULN (upper limit of normal)
- Serum lipase ≤ 2 x ULN
- Alkaline phosphatase ≤ 2.5 x ULN
- Serum creatinine < 1.5 x ULN
Patients must have the following electrolyte values ≥ LLN (lower limit of normal) limits or corrected to within normal limits with supplements prior to the first dose of study medication:
- Total calcium (corrected for serum albumin)
Patients must have normal marrow function as defined below:
- Absolute Neutrophil Count (ANC) ≥ 1.5 x 109/L
- Platelets ≥ 100 x 109/L
- Hemoglobin ≥ 9.0 g/dL
- Written informed consent obtained prior to any screening procedures
- Prior AP, BC or allo-transplant
- Patient has documented MR4.5 at the time when switched from imatinib to nilotinib
- Patients with known atypical transcript
- Mutation(s) detected if a testing was done in the past (there is no requirement to perform mutation testing at study entry if it was not done in the past)
- Dose reductions due to neutropenia or thrombocytopenia in the past 6 months
- Patient ever attempted to permanently discontinue imatinib or nilotinib treatment
Known impaired cardiac function including any one of the following:
- Inability to determine the QT interval on ECG
- Complete left bundle branch block
- Long QT syndrome or a known family history of long QT syndrome
- History of or presence of clinically significant ventricular or atrial tachyarrhythmias
- Clinically significant resting bradycardia
- QTcF > 480 msec
- History or clinical signs of myocardial infarction within 1 year prior to study entry
- History of unstable angina within 1 year prior to study entry
- Other clinically significant heart disease (e.g. uncontrolled congestive heart failure or uncontrolled hypertension)
- Severe and/or uncontrolled concurrent medical disease that in the opinion of the investigator could cause unacceptable safety risks or compromise compliance with the protocol (e.g. uncontrolled diabetes (defined as HbA1c > 9%), uncontrolled infection)
- History of acute pancreatitis within 1 year prior to study entry or past medical history of chronic pancreatitis
- Known presence of a significant congenital or acquired bleeding disorder unrelated to cancer
- History of other active malignancy within 5 years prior to study entry with the exception of previous or concomitant basal cell skin cancer, previous cervical carcinoma in situ treated curatively
- Patients who have not recovered from prior surgery
- Treatment with other investigational agents (defined as not used in accordance with the approved indication) within 4 weeks of Day 1
- Patients actively receiving therapy with strong CYP3A4 inhibitors and/or inducers, and the treatment cannot be either discontinued or switched to a different medication prior to study entry. See Appendix 14.1 for a list of these medications. This list may not be comprehensive.
- Patients actively receiving therapy with herbal medicines that are strong CYP3A4 inhibitors and/or inducers, and the treatment cannot be either discontinued or switched to a different medication prior to study entry. These herbal medicines may include Echinacea, (including E. purpurea, E. angustifolia and E. pallida), Piperine, Artemisinin, St. John's Wort, and Ginkgo.
- Patients who are currently receiving treatment with any medications that have the potential to prolong the QT interval and the treatment cannot be either safely discontinued or switched to a different medication prior to study entry. (Please see www.azcert.org/medical-pros/drug-lists/printable-drug-list.cfm for a list of agents that prolong the QT interval.)
- Impairment of gastrointestinal (GI) function or GI disease that may significantly alter the absorption of study drug (e.g. ulcerative disease, uncontrolled nausea, vomiting, diarrhea, malabsorption syndrome, small bowel resection, or gastric bypass surgery)
- Pregnant or nursing (lactating) women, where pregnancy is defined as the state of a female after conception and until the termination of gestation, confirmed by a positive hCG laboratory test.
Women of child-bearing potential, defined as all women physiologically capable of becoming pregnant, unless they are using effective methods of contraception during dosing of study treatment. Effective contraception methods include:
- Total abstinence (when this is in line with the preferred and usual lifestyle of the patient. Periodic abstinence (e.g., calendar, ovulation, symptothermal, post-ovulation methods) and withdrawal are not acceptable methods of contraception
- Female sterilization (have had surgical bilateral oophorectomy with or without hysterectomy) or tubal ligation at least six weeks before taking study treatment. In case of oophorectomy alone, only when the reproductive status of the woman has been confirmed and documented by follow up hormone level assessment
- Male sterilization (at least 6 months prior to screening). For female patients on the study, study participation assumes the vasectomized male partner is the sole partner for that patient
- Barrier methods of contraception: condom or occlusive cap (diaphragm or cervical/vault caps) with spermicidal foam/gel/film/cream/ vaginal suppository
- Use of oral, injected or implanted hormonal methods of contraception or other forms of hormonal contraception that have comparable efficacy (failure rate <1%), for example hormone vaginal ring or transdermal hormone contraception
- Placement of an intrauterine device (IUD) or intrauterine system (IUS) Women are considered post-menopausal and not of child bearing potential if they have had 12 months of natural (spontaneous) amenorrhea with an appropriate clinical profile (e.g. age appropriate, history of vasomotor symptoms) or have had surgical bilateral oophorectomy (with or without hysterectomy) or tubal ligation at least six weeks prior to enrolling. In the case of oophorectomy alone, only when the reproductive status of the woman has been confirmed by follow up hormone level assessment is she considered not of child bearing potential.
If a study patient becomes pregnant or is suspected of being pregnant during the study or within 30 days after the final dose of nilotinib, the Study Doctor needs to be informed immediately and ongoing study treatment with nilotinib has to be stopped immediately.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01698905
|Contact: Novartis Pharmaceuticals
|Contact: Novartis Pharmaceuticals
No publications provided
||Novartis ( Novartis Pharmaceuticals )
History of Changes
|Other Study ID Numbers:
|Study First Received:
||October 1, 2012
||May 2, 2013
||United States: Food and Drug Administration
Keywords provided by Novartis:
Phase II, single arm, open label, nilotinib, treatment-free remission, MR4.5, confirmed loss of MR4, loss of MMR, Ph+ CML-CP
Additional relevant MeSH terms:
ClinicalTrials.gov processed this record on June 18, 2013
Leukemia, Myelogenous, Chronic, BCR-ABL Positive
Neoplasms by Histologic Type
Bone Marrow Diseases