Follow-up Study on Chronic Myeloid Leukemia Patients Achieving Treatment-free Remission

Study Purpose

In recent years, the goal of stopping drug therapy, also known as treatment-free remission (TFR), is emerging as one of the management goals of chronic myeloid leukemia (CML) therapy. Because there is no available data on Asian patients with CML undergoing tyrosine kinase inhibitor discontinuation (TKI), the investigators plan to recruit chronic phase CML patients with deep treatment response and good medical compliance in Taiwan to evaluate the feasibility, safety and clinical consequences of TKI discontinuation.

Recruitment Criteria

Accepts Healthy Volunteers Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms	No
Study Type An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes. An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes. Searching Both is inclusive of interventional and observational studies.	Observational [Patient Registry]
Eligible Ages	20 Years and Over
Gender	All

More Inclusion & Exclusion Criteria

Inclusion Criteria:

1. The participant should be an adult (age ⩾20 years) with CP-CML. 2. The BCR-ABL fusion should be in the form of either e13a2 or e14a2 (p210) 3. The participant should not have documented resistance to a 2nd-generation TKI (Nilotinib or Dasatinib) 4. The participant should have received ≥ 5 years of consecutive treatment with imatinib, or ≥ 4 years of consecutive treatment with a 2nd-generation TKI (Nilotinib or Dasatinib) 5. The participant should have achieved MR4.5 (BCR-ABL ⩽0.0032% IS) or undetectable disease in the peripheral blood or bone marrow, for ≥ 2 years, which is documented on ≥ 4 separate tests performed ≥ 3 months apart. 6. Access to a reliable qPCR-based BCR-ABL test with a sensitivity of detecting of at least MR4.5.

Exclusion Criteria:

1. After evaluation, the participant is deemed to be ineligible by the investigator of this study. 2. The participant has no intention to be recruited into this study.

Trial Details

Trial ID: This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.	NCT05439889
Phase Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans. Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data. Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs. Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.
Lead Sponsor The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.	National Taiwan University Hospital
Principal Investigator The person who is responsible for the scientific and technical direction of the entire clinical study.	N/A
Principal Investigator Affiliation	N/A
Agency Class Category of organization(s) involved as sponsor (and collaborator) supporting the trial.	Other
Overall Status	Recruiting
Countries	Taiwan
Conditions The disease, disorder, syndrome, illness, or injury that is being studied.	Chronic Myeloid Leukemia, BCR/ABL-Positive

Additional Details

1. Primary goal: To evaluate the feasibility, safety and clinical consequences of TKI discontinuation in chronic phase CML(CP-CML) patients with deep treatment response and good medical compliance in Taiwan. 2. Molecular response monitoring: 1. After discontinuation of TKI therapy, participants will receive monthly molecular monitoring of BCR-ABL transcript levels by real-time quantitative polymerase chain reaction (RT-qPCR) for one year, every two months for the second year and every three months thereafter. 2. If loss of major molecular response (MMR) (BCR-ABL transcript level ⩽ 0.1% IS) is detected at any time point post TKI discontinuation, the participant should receive repeated testing within two weeks. If loss of MMR is confirmed, TKI should be resumed within four weeks. 3. RT-qPCR of BCR-ABL would be ordered every four weeks until MR4 (BCR-ABL transcript level ⩽ 0.01% IS) is re-established, and then every 12 weeks indefinitely. 4. For patients who fails to achieve MMR again within three months after TKI is re-initiated, BCR-ABL kinase domain mutation testing would be performed

Contact a Trial Team

If you are interested in learning more about this trial, find the trial site nearest to your location and contact the site coordinator via email or phone. We also strongly recommend that you consult with your healthcare provider about the trials that may interest you and refer to our terms of service below.

International Sites

National Taiwan University Hospital, Taipei, Taiwan

Status

Recruiting

Address

National Taiwan University Hospital

Taipei, , 10002

Site Contact

Wen-Chien Chou, MD. PhD.

[email protected]

+886-2312-3456 #265997

Site by: Kaleidoscopic

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