Open-Label Study Evaluating Dasatinib Therapy Discontinuation in Patients With Chronic Phase Chronic Myeloid Leukemia With Stable Complete Molecular Response
DASFREE
Open-Label Single Arm Phase 2 Study Evaluating Dasatinib Therapy Discontinuation In Patients With Chronic Phase Chronic Myeloid Leukemia (CP-CML) With Stable Complete Molecular Response (CMR) DASFREE
2 other identifiers
interventional
84
6 countries
28
Brief Summary
The study purpose is to test the hypothesis that Chronic Phase Chronic Myeloid Leukemia (CP-CML) patients with stable Complete Molecular Response (CMR) who discontinue Dasatinib treatment are able to maintain a sustained remission in the long-term, with undetectable or minimally detectable BCR-ABL residual disease.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_2
Started Jan 2014
Longer than P75 for phase_2
28 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
May 8, 2013
CompletedFirst Posted
Study publicly available on registry
May 9, 2013
CompletedStudy Start
First participant enrolled
January 22, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 20, 2017
CompletedResults Posted
Study results publicly available
November 2, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
October 8, 2021
CompletedNovember 3, 2022
October 1, 2022
3.7 years
May 8, 2013
September 20, 2018
October 5, 2022
Conditions
Outcome Measures
Primary Outcomes (1)
Major Molecular Response (MMR) Rate
Major Molecular Response (MMR) rate at 12 months is the percentage of participants who maintain MMR (BCR-ABL transcripts \< 0.1% on the International Scale \[IS\]) at 12 months after Dasatinib discontinuation without restarting Dasatinib
At 12 months after Dasatinib discontinuation (assessed up to approximately June 4, 2018)
Secondary Outcomes (8)
Event-Free Survival (EFS) Rate
From 12 months after Dasatinib treatment discontinuation to every 12 months thereafter (up to approximately 60 months)
Relapse-Free Survival (RFS) Rate
From 12 months after Dasatinib treatment discontinuation to every 6 months thereafter (up to approximately 60 months)
Progression Free Survival (PFS) Rate
From 12 months after Dasatinib treatment discontinuation to every 6 months thereafter (up to approximately 60 months)
Number of Participants Who Experience Intermittent Loss of Complete Molecular Response (CMR) (MR4.5) But no Loss of Major Molecular Response (MMR)
60 months after last dose
Number of Participants Who Did Not Experience Loss of Complete Molecular Response (CMR) (MR4.5) and Major Molecular Response (MMR)
From 12 months after Dasatinib treatment discontinuation to 5 years after the first visit of the last enrolled participant (up to approximately 82 months)
- +3 more secondary outcomes
Study Arms (1)
Dasatinib
EXPERIMENTALDasatinib 50, 80, 100, 140, 180 mg tablets by mouth, once daily, up to 60 months
Interventions
Eligibility Criteria
You may qualify if:
- Signed Written Informed Consent
- Target Population
- Men and women diagnosed with CP-CML, on treatment with dasatinib for a minimum of 2 years at the time of enrollment and in dasatinib-induced complete molecular remission ongoing for at least 1 year prior to study entry.
- Patients are eligible if they have been in stable dasatinib induced CMR for a minimum of nine months, documented by at least three assessments, conducted 2 - 6.5 months apart, at a local lab.
- Subjects who have received dasatinib beyond first or second line treatment and meet other enrollment criteria are eligible for the study provided prior Tyrosine-kinase inhibitors (TKI) were discontinued due to intolerance or lack efficacy, although only one instance of lack of efficacy to TKI is allowed.
- Eastern Co-Operative Group (ECOG) Performance Status (PS) of 0-1
- Age and Reproductive Status
- Men and women, ages ≥18
- Women of childbearing potential (WOCBP) must have a negative serum or urine pregnancy test within 24 hours prior to the restart of study drug
- Women must not be breastfeeding
- WOCBP must agree to follow instructions for method(s) of contraception at the restart of treatment with study drug (dasatinib) and for the duration treatment plus 30 days (duration of ovulatory cycle) for a total of 30 days post-treatment completion
- Men who are sexually active with WOCBP must agree to follow instructions for method(s) of contraception for 90 days after study entry (withdrawal of dasatinib), at restart of study drug (dasatinib) and for the duration of treatment with study drug (dasatinib) plus 90 days (duration of sperm turnover) for a total of 90 days post-treatment completion
You may not qualify if:
- Target Disease Exceptions
- Patients who have not achieved a 1-log reduction in BCR-ABL transcript levels compared with baseline as determined by local standards or \> 10% IS \[International Standard\]) documented at 3.0-6.5 months since the initial start of dasatinib therapy.
- Patients who have previously undergone hematopoietic stem cell transplantation (SCT) or who are scheduled for SCT
- Previous diagnosis of CML accelerated phase or blast crisis
- Medical History and Concurrent Diseases
- Prior or concurrent malignancy, except the following:
- Curatively treated basal cell or squamous cell skin cancer
- Cervical carcinoma in situ
- Adequately treated Stage I or II cancer from which the subject is currently in complete remission
- Any other cancer from which the subject has been disease free for 3 years
- A serious uncontrolled medical disorder or active infection that would impair the ability of the subject to receive protocol therapy in case re-initiation of dasatinib is needed.
- Uncontrolled or significant cardiovascular disease
- Subjects with prior history of pericardial effusion or pleural effusion that required thoracentesis are excluded. Subjects with prior history of pericardial or pleural effusion that was clinically manageable and a maintained CMR for ≥ 1 year on a stable dose of dasatinib are allowed.
- History of significant bleeding disorder unrelated to CML
- Allergies and Adverse Drug Reaction
- +8 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Bristol-Myers Squibblead
- ICON plccollaborator
- PPD Development, LPcollaborator
- Molecular MDcollaborator
- European Organisation for Research and Treatment of Cancer - EORTCcollaborator
- MultiPharmacollaborator
- Steering Committeecollaborator
Study Sites (28)
Local Institution - 0006
Duarte, California, 91010, United States
Local Institution - 0029
Los Angeles, California, 90095, United States
Local Institution - 0001
San Franisco, California, 94143, United States
Local Institution - 0013
Chicago, Illinois, 60611, United States
Local Institution - 0024
Hackensack, New Jersey, 07601, United States
Local Institution - 0028
New York, New York, 10032, United States
Local Institution - 0011
Dallas, Texas, 75246, United States
Local Institution - 0023
Houston, Texas, 77030-4000, United States
Local Institution - 0005
Toronto, Ontario, M5G 2M9, Canada
Local Institution - 0012
Paris, 75475, France
Local Institution - 0003
Pessac, 33604, France
Local Institution - 0030
Pierre-Bénite, 69495, France
Local Institution - 0002
Vandœuvre-lès-Nancy, 54511, France
Local Institution - 0019
Rostock, Mecklenburg-Vorpommern, 18057, Germany
Local Institution - 0026
Aachen, D-52074, Germany
Local Institution - 0020
Berlin, 13353, Germany
Local Institution - 0021
Mannheim, 68167, Germany
Local Institution - 0022
Ulm, 89081, Germany
Local Institution - 0025
Catania, 95123, Italy
Local Institution - 0017
Florence, 50134, Italy
Local Institution - 0027
Napoli, 80131, Italy
Local Institution - 0015
Orbassano, 10143, Italy
Local Institution - 0018
Roma, 00144, Italy
Local Institution - 0016
Rome, 00161, Italy
Local Institution - 0014
Oviedo, Principality of Asturias, 33011, Spain
Local Institution - 0009
Las Palmas de Gran Canaria, 35010, Spain
Local Institution - 0010
Madrid, 28034, Spain
Local Institution - 0008
Málaga, 29010, Spain
Related Publications (1)
Shah NP, Garcia-Gutierrez V, Jimenez-Velasco A, Larson SM, Saussele S, Rea D, Mahon FX, Levy MY, Gomez-Casares MT, Mauro MJ, Sy O, Martin-Regueira P, Lipton JH. Treatment-free remission after dasatinib in patients with chronic myeloid leukaemia in chronic phase with deep molecular response: Final 5-year analysis of DASFREE. Br J Haematol. 2023 Sep;202(5):942-952. doi: 10.1111/bjh.18883. Epub 2023 May 29.
PMID: 37246588DERIVED
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Bristol-Myers Squibb Study Director
- Organization
- Bristol-Myers Squibb
Study Officials
- STUDY DIRECTOR
Bristol-Myers Squibb
Bristol-Myers Squibb
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- NA
- Masking
- NONE
- Purpose
- OTHER
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 8, 2013
First Posted
May 9, 2013
Study Start
January 22, 2014
Primary Completion
September 20, 2017
Study Completion
October 8, 2021
Last Updated
November 3, 2022
Results First Posted
November 2, 2018
Record last verified: 2022-10