Chronic Myelogenous Leukemia - Chronic PhasePhase 2ASC2ESCALATENCT05384587
Asciminib Monotherapy, With Dose Escalation, for 2nd and 1st Line Chronic Myelogenous Leukemia
A Phase 2 study testing asciminib in people with Chronic Myelogenous Leukemia - Chronic Phase, run by Novartis Pharmaceuticals at 80 sites in United States.
Trial summary
This will be a multicenter Phase II open-label study of asciminib in CML-CP patients who have been previously treated with one prior ATP- binding site TKI with discontinuation due to treatment failure, warning or intolerance. (2L patient cohort). Read more about this study
- Who is it for?
- Ages 18 to 100 years
- Conditions the study is for
- Chronic Myelogenous Leukemia - Chronic Phase
- What is being tested?
- asciminib
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 34 participants
- Where
- 80 sitesUnited States
- Study dates
- 11 Nov 2022to 17 Oct 2027
- Phase
- Phase 2
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 100 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Participants eligible for inclusion in this study must meet the following criteria: Criteria #1-5 are common to both patient cohorts (2L and 1L):
- Signed informed consent must be obtained prior to participation in the study
- CML-CP, no previous AP or BC
- ≥ 18 years of age
- ECOG performance status of 0, 1 or 2
- Adequate end organ function within 14 days before the first dose of asciminib treatment.
Show all 22Show fewer
- Patients with mild to moderate renal and hepatic impairment are eligible if:
- Total bilirubin ≤ 3.0 x ULN without AST/ALT increase
- Aspartate transaminase (AST) ≤ 5.0 x ULN
- Alanine transaminase (ALT) ≤ 5.0 x ULN
- Serum lipase ≤ 1.5 x ULN. For serum lipase > ULN and ≤ 1.5 x ULN, value should be considered not clinically significant and not associated with risk factors for acute pancreatitis
- Alkaline phosphatase ≤ 2.5 x ULN
- Creatinine clearance ≥ 30 mL/min as calculated using Cockcroft- Gault formula
- Criteria #6 and 7 are specific to the 2L patient cohort. These are meant to be either/or. It is not required to have both criteria satisfied.
- Warning or failure (according to 2020 ELN Recommendations; Hochhaus et al) to 1L TKI therapy at the time of screening
- Warning is defined as: i. Six months after the initiation of treatment: BCR::ABL1IS >1-10% ii. Twelve months after the initiation of treatment: BCR::ABL1IS >0.1-1% b. Treatment failure/resistance to 1L TKI is defined as: i. BCR::ABL1IS >10% if 1L treatment duration between 6 and 12 months ii. BCR::ABL1IS >1% if 1L treatment longer than 12 months treatment iii. Beyond 12 months after initiation of treatment: loss of MMR
- Treatment intolerance to 1L TKI,
- BCR::ABL1IS > 0.1% at screening
- Intolerance is defined as:
- Non-hematologic intolerance: Patients with grade 3 or 4 toxicity while on therapy, or with persistent grade 2 toxicity, unresponsive to optimal management, including dose adjustments (unless dose reduction is not considered in the best interest of the patient if response is already suboptimal) ii. Hematologic intolerance: Patients with grade 3 or 4 toxicity (absolute neutrophil count [ANC] or platelets) while on therapy that is recurrent after dose reduction to the lowest doses recommended by manufacturer
- Criteria #8 is specific to the 1L patient cohort
- Patients with newly diagnosed CML-CP (treatment with a prior TKI (imatinib, or nilotinib, or dasatinib or bosutinib) for ≤ 4 weeks is allowed)
Who cannot join
- Previous treatment
- With 2 or more ATP-binding site TKIs (for 2L patient cohort)
- More than 4 weeks with 1-ATP-binding site TKIs (for 1L patient cohort)
- Previous treatment with asciminib
- Known presence of the T315I mutation at any time prior to study entry
- Known second chronic phase of CML after previous progression to AP/BC
Show all 27Show fewer
- Previous treatment with a hematopoietic stem-cell transplantation
- Patient planning to undergo allogeneic hematopoietic stem cell transplantation
- Cardiac or cardiac repolarization abnormality, including any of the following:
- History within 6 months prior to starting study treatment of myocardial infarction (MI), angina pectoris, coronary artery bypass graft (CABG)
- Clinically significant cardiac arrhythmias (e.g., ventricular tachycardia), complete left bundle branch block, high-grade AV block (e.g., bifascicular block, Mobitz type II and third degree AV block)
- QTcF at screening ≥450 msec (male patients), ≥450 msec (female patients)
- Long QT syndrome, family history of idiopathic sudden death or congenital long QT syndrome, or any of the following:
- Risk factors for Torsades de Pointes (TdP) including uncorrected hypokalemia or hypomagnesemia, history of cardiac failure, or history of clinically significant/symptomatic bradycardia
- Concomitant medication(s) with a "Known risk of Torsades de Pointes" per www.crediblemeds.org that cannot be discontinued or replaced 7 days prior to starting study drug by safe alternative medication
- Inability to determine the QTcF interval
- History of acute pancreatitis within 1 year of study entry or past medical history of chronic pancreatitis
- Participation in a prior investigational study within 30 days prior to enrollment or within 5 half-lives of the investigational product, whichever is longer
- Treatment with medications that meet one of the following criteria is not allowed and should be switched to an alternative at least one week prior to the start of treatment with study treatment:
- Strong inducers of CYP3A for patients on the dose of 80 mg QD and 200mg QD
- Strong inducers and inhibitors of CYP3A for patients on the dose of 200 mg BID
- Pregnant or nursing (lactating) women
- Women of child-bearing potential, defined as all women physiologically capable of becoming pregnant, unless they are using highly effective methods of contraception. Highly effective contraception for women should be maintained throughout the study and for at least 7 days after the last dose.
- Sexually active males unwilling to use a condom during intercourse while taking study treatment and for 7 days after stopping study (only for patients treated with asciminib).
- 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, active or uncontrolled infection; uncontrolled arterial or pulmonary hypertension, uncontrolled clinically significant hyperlipidemia).
- History of other active malignancy within 3 years prior to study entry with the exception of previous or concomitant basal cell skin cancer and previous carcinoma in situ treated curatively.
- Known hypersensitivity to the study treatment.
Trial locations and contacts
80 sites in 1 country.
80 sites in 1 country
United States80 sites
UNM
Albuquerque, New Mexico, 87102
Alaska Oncology and Hematology
Anchorage, Alaska, 99508
City Of Hope Atlanta
Atlanta, Georgia, 30033
Emory University School of Medicine Winship Cancer Institute
Atlanta, Georgia, 30308
Augusta University Georgia
Augusta, Georgia, 30912
Texas Oncology P A
Austin, Texas, 78121
St Vincent Frontier Cancer Center
Billings, Montana, 59102
University of Alabama at Birmingham
Birmingham, Alabama, 35233-0271
Dana Farber Cancer Center
Boston, Massachusetts, 02215
Rocky Mountain Cancer Centers
Boulder, Colorado, 80304
Gabrail Cancer Center
Canton, Ohio, 44718
Onco Inst of Hope and Innovation
Cerritos, California, 90703
University of North Carolina
Chapel Hill, North Carolina, 27514
Novant Health Heart Vas Inst
Charlotte, North Carolina, 28204
Hematology Oncology Care
Cincinnati, Ohio, 45236
Care Access Research Clifton
Clifton, New Jersey, 07013
University Missouri Ellis Fischel Cancer Center
Columbia, Missouri, 65203
James Cancer Hospital and Solove Research Institute Ohio State
Columbus, Ohio, 43210
Texas Oncology
Dallas, Texas, 75251
Henry Ford Hospital
Detroit, Michigan, 48202-2689
City of Hope National Medical
Duarte, California, 91010
Duke University Medical Center
Durham, North Carolina, 27710
Care Access Research
Easton, Pennsylvania, 18045
Hackensack Meridian Health
Edison, New Jersey, 88837
Florida Cancer Specialists
Fort Myers, Florida, 33901
Ctr For Cancer And Blood Disorders
Fort Worth, Texas, 76104
UCSF Fresno Internal Medicine
Fresno, California, 93701
Virginia K Crosson Cancer Center
Fullerton, California, 92835
Virginia Cancer Specialists
Gainesville, Virginia, 20155
Bon Secours Cancer Center
Greenville, South Carolina, 29607
Hackensack University Medical Ctr
Hackensack, New Jersey, 07601
Houston Methodist Hospital
Houston, Texas, 77030
Univ of TX MD Anderson Cancer Cntr
Houston, Texas, 77030
Franciscan Health Indianapolis
Indianapolis, Indiana, 42637
Investigative Clinicl Rsrch of Indi
Indianapolis, Indiana, 46260
Holden Comp Can Cent Quad Cities U
Iowa City, Iowa, 52242
Jackson Onc Associates
Jackson, Mississippi, 39216
Baptist MD Anderson Cancer Center
Jacksonville, Florida, 32207
Clinical Research Alliance
Lake Success, New York, 11042
Dartmouth Hitchcock Medical Center
Lebanon, New Hampshire, 03756
University of Kentucky
Lexington, Kentucky, 40536
Nebraska Hematology Oncology P C
Lincoln, Nebraska, 68506
UCLA
Los Angeles, California, 90095
Dean Health System
Madison, Wisconsin, 53717
Northwest Georgia Oncology Center
Marietta, Georgia, 30060
Medical College of Wisconsin
Milwaukee, Wisconsin, 53226
NYU Langone Long Island
Mineola, New York, 11501
Sarah Cannon Research Institute
Nashville, Tennessee, 37203
Rutgers Cancer Institute of NJ
New Brunswick, New Jersey, 08901
Yale University School Of Medicine
New Haven, Connecticut, 06520
Manhattan Hematol Oncol Associates
New York, New York, 10016
Mt Sinai Medical Center
New York, New York, 10029-6574
Virginia Oncology Associates
Norfolk, Virginia, 23502
Alta Bates Summit Medical Center
Oakland, California, 94609
Community Cancer Trials of Utah
Ogden, Utah, 84405
Thomas Jefferson University
Philadelphia, Pennsylvania, 19107
UPMC
Pittsburgh, Pennsylvania, 15213
New York Bld And Cancer Specialists
Port Jefferson, New York, 11776
Oregon Health Sciences University
Portland, Oregon, 97239
Virginia Cancer Institute
Richmond, Virginia, 23230
Huntsman Cancer Institute
Salt Lake City, Utah, 84112
Mays Cancer Center
San Antonio, Texas, 78229
Texas Oncology San Antonio
San Antonio, Texas, 78258
City of Hope Phoenix
Scottsdale, Arizona, 85258
VA Puget Sound Health Care System
Seattle, Washington, 98108
Fred Hutch Cancer Research
Seattle, Washington, 98109
Louisiana State University
Shreveport, Louisiana, 71130
Avera Cancer
Sioux Falls, South Dakota, 57105
Siteman Cancer Center
St Louis, Missouri, 63110
Florida Cancer Specialists-North
St. Petersburg, Florida, 33705
The Stamford Hospital
Stamford, Connecticut, 06904
SUNY Stony Brook Medical Oncology
Stony Brook, New York, 11794-8174
Florida Cancer Specialists East
Stuart, Florida, 34994
SUNY Upstate Medical Center
Syracuse, New York, 13210
Northwest Medical Specialties
Tacoma, Washington, 98405
Lundquist Inst BioMed at Harbor
Torrance, California, 90509-2910
USO Arizona Oncology
Tucson, Arizona, 85711
Texas Oncology Northeast Texas
Tyler, Texas, 75702
Wichita Community Clcl Onco Program
Wichita, Kansas, 67214
Wake Forest Uni Health Sci
Winston-Salem, North Carolina, 27157
About this study
Official title: A Phase II Multicenter, Open-label, Single-arm Dose Escalation Study of Asciminib Monotherapy in 2nd and 1st Line Chronic Phase - Chronic Myelogenous Leukemia (ASC2ESCALATE)
This will be a multicenter Phase II open-label study of asciminib in CML-CP patients who have been previously treated with one prior ATP- binding site TKI with discontinuation due to treatment failure, warning or intolerance. (2L patient cohort). In addition, newly diagnosed CML-CP patients who may have received up to 4 weeks of prior TKI are included in a separate 1L patient cohort.
Read the detailed description
This trial consists of three periods: screening and baseline for up to 28 days, active treatment for up to 156 weeks and a safety follow up period for 30 days.
Ninety-two (92) 2L patients with CML-CP without T315I mutation who had 1 prior ATP-binding site TKI discontinued due to treatment failure, warning or intolerance will be considered for the current study. Patients will be tested at screening for the T315I mutation and excluded if the mutation is found.
To gain additional insights into the effect of asciminib in the 1L setting, an additional cohort of newly diagnosed CML-CP patients will be enrolled in the study. Based on the number of participating sites, it is approximated that between 60 and 90 patients could be enrolled. Enrollment of the 1L cohort will be stopped when a maximum of 90 patients have been enrolled or when approximately 60 patients have been enrolled and the 2L cohort is fully recruited, whichever comes first.
Informed consent will be obtained before any procedures are performed for the study including eligibility assessments.
All eligible patients will be initially treated with asciminib at 80 mg QD. At 6 months of study treatment, patients who have achieved BCR-ABL1IS ≤1% will continue on the same dose whereas those who have not will increase dose to 200mg QD.
At 12 months of study treatment, patients will be evaluated for the primary endpoint of the study (MMR at 12 month in 2L patient cohort) and will pursue one of the following:
- Continue on the current dose of asciminib if MMR is achieved
- Increase dose to 200 mg QD if on 80 mg QD dosing and MMR is not achieved
- Increase dose to 200 mg BID if on 200 mg QD dosing and MMR is not achieved
- Take the patient off the study and switch to Investigator's agent of choice if MMR is not achieved and it is in the interest of the patient based on investigator's clinical judgment of prospect treatment benefit.
- Being tested
- asciminib
- Keywords
- CML, Chronic Phase, Asciminib, ASC2ESCALATE, T315I mutation, BCR-ABL, MMR, TKI, Tyrosine Kinase Inhibitor, molecular response, adult
- Medical subject headings
- Leukemia, Myeloid, Chronic-Phase
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
asciminibDrug
Also called ABL001
Supplied in 40 mg and 100 mg tablets for oral use to be taken daily. Dose may be increased at 6 and 12 months based on molecular response with BCR-ABL1 Polymerase Chain Reaction testing.
| Study group | Role | What they receive |
|---|---|---|
| Asciminib | Experimental | 80 mg initial oral dose taken once a day with possible dose escalation Receives: Drug: asciminib |
What is being measured
The primary outcome is the main question the study is designed to answer.
Percentage of participants who achieve Major Molecular Response (MMR) in the 2L setting
MMR is defined as BCR::ABL1IS ≤ 0.1%. A patient will be counted as having achieved MMR at 12 month if he/she meets the MMR criterion at 12 month.
Measured: Baseline up to 12 months
Secondary outcomes (15)
Percentage of participants achieving Molecular Response 4.5 (MR4.5) at 24 and 36 months
Percentage of participants who achieve MR4.5 (defined as a ≥ 4.5 log reduction in BCR::ABL1 transcripts compared to the standardized baseline equivalent to ≤ 0.0032% BCR::ABL1/ABL % by international scale as measured by real time Polymerase Chain Reaction [PCR]) at the specified visits, i.e., if a patient achieves an MR4.5 but then loses it before or at the visit, he/she will be considered as non-responder for MR4.5 at that time point.
Measured: Baseline, 24 and 36 months
MMR Rate at visit (other than 12 month)
Percentage of participants who achieve MMR (defined as BCR::ABL1IS ≤ 0.1%) at the specified visit, i.e., if a patient achieves an MMR earlier but then loses it at the visit, he/she will be considered as non-responder for MMR at the specified visit
Measured: Baseline, 3, 6, 18, 24, 30 and 36 months
MR2 Rate at visit
Percentage of participants who achieve MR2 (defined as a ≥ 2 log reduction in BCR::ABL1 transcripts) at the specified visit, i.e., if a patient achieves an MR2 earlier but then loses it at the visit, he/she will be considered as non-responder for MR2 at the specified visit
Measured: Baseline, 3, 6, 12, 18, 24, 30 and 36 months
MR4 Rate at visit
Percentage of participants who achieve MR4 (defined as a ≥ 4 log reduction in BCR::ABL1 transcripts) at the specified visit, i.e if a patient achieves an MR4 earlier, but then loses it at the visit, he/she will be considered as non-responder for MR4 at the specified visit
Measured: Baseline, 3, 6, 12, 18, 24, 30 and 36 months
MR4.5 Rate at visit
Percentage of participants who achieve MR4.5 (defined as a ≥ 4.5 log reduction in BCR::ABL1 transcripts) at the specified visit, i.e if a patient achieves an MR4.5 earlier, but then loses it at the visit, he/she will be considered as non-responder for MR4.5 at the specified visit
Measured: Baseline, 3, 6, 12, 18 and 30 months
MMR Rate by visit
Percentage of participants who achieve MMR at or before the specified visit, i.e., if a patient achieves an MMR but then loses it before or at the visit, he/she will still be considered as achieving MMR by that time point.
Measured: Baseline up to 3, 6, 12, 18, 24, 30 and 36 months
MR2 Rate by visit
Percentage of participants who achieve MR2 (defined as a ≥ 2 log reduction in BCR::ABL1 transcripts) at or before the specified visit, i.e., if a patient achieves an MR2 but then loses it before or at the visit, he/she will still be considered as achieving MR2 by that time point.
Measured: Baseline up to 3, 6, 12, 18, 24, 30 and 36 months
MR4 Rate by visit
Percentage of participants who achieve MR4 (defined as a ≥ 4 log reduction in BCR::ABL1 transcripts) at or before the specified visit, i.e., if a patient achieves an MR4 but then loses it before or at the visit, he/she will still be considered as achieving MR4 by that time point.
Measured: Baseline up to 3, 6, 12, 18, 24, 30 and 36 months
MR4.5 Rate by visit
Percentage of participants who achieve MR4.5 (defined as a ≥ 4.5 log reduction in BCR::ABL1 transcripts) at or before the specified visit, i.e., if a patient achieves an MR4.5 but then loses it before or at the visit, he/she will still be considered as achieving MR4.5 by that time point.
Measured: Baseline up to 3, 6, 12, 18, 24, 30 and 36 months
Time to MMR
Time to MMR is defined and calculated as date of first documented MMR - start date of study treatment +1 day.
Measured: Baseline up to 36 months
Duration of MMR
Duration of MMR is defined as the time from the date of first documented MMR to the earliest date of loss of MMR, progression to Accelerated Phase (AP) or Blast Crisis (BC), or CML-related death.
Measured: Baseline up to 36 months
Time to Treatment Failure (TTF)
Time to treatment failure (TTF) is defined as the time from date of randomization to an event of treatment failure.
Measured: Baseline up to 36 months
Progression Free Survival (PFS)
Time from the first dose of study treatment to the earliest occurrence of documented progression to Accelerated Phase (AP) or Blast Crisis (BC) or the date of death from any cause, before the end of the treatment phase.
Measured: Baseline up to 36 months
Overall Survival (OS)
Time from the first dose of study treatment to death due to any cause during the study.
Measured: Baseline up to 36 months.
Number of Adverse Events and Serious Adverse Events
Clinically significant findings for vitals, laboratory values and electrocardiogram (ECG) will be reported as adverse events and or serious adverse events as determined by the investigator.
Measured: Baseline up to 36 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 May 2022
- Study start11 Nov 2022
- Primary completion13 Aug 2025
- Study completion17 Oct 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Chronic Myelogenous Leukemia - Chronic PhaseStudies of the same condition, open and under way.
- More trials run by Novartis PharmaceuticalsThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 34 participants (actual)
Sponsor and investigators
- Lead sponsor
- Novartis Pharmaceuticals
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Novartis, Study director, Novartis
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05384587
- Sponsor's protocol ID
- CABL001AUS08
- Acronym
- ASC2ESCALATE
- Status last verified
- Oct 2025
- First submitted
- 17 May 2022
- Last updated
- 14 Oct 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: Novartis is committed to sharing with qualified external researchers, access to patient-level data and supporting clinical documents from eligible studies. These requests are reviewed and approved by an independent review panel on the basis of scientific merit. All data provided is anonymized to respect the privacy of patients who have participated in the trial in line with applicable laws and regulations. This trial data availability is according to the criteria and process described on www.clinicalstudydatarequest.com
Publications
Atallah EL, Mauro MJ, Sasaki K, Levy MY, Koller P, Yang D, Laine D, Sabo J, Gu E, Cortes JE. Dose-escalation of second-line and first-line asciminib in chronic myeloid leukemia in chronic phase: the ASC2ESCALATE Phase II trial. Future Oncol. 2024;20(38):3065-3075. doi: 10.1080/14796694.2024.2402680. Epub 2024 Oct 10.
PubMed 39387441
Study at a glance
From the registry record, last updated by the sponsor on 14 Oct 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase II Multicenter, Open-label, Single-arm Dose Escalation Study of Asciminib Monotherapy in 2nd and 1st Line Chronic Phase - Chronic Myelogenous Leukemia (ASC2ESCALATE)
- ClinicalTrials.gov ID
- NCT05384587
- Acronym / sponsor ID
- ASC2ESCALATE / CABL001AUS08
- Keywords
- CML, Chronic Phase, Asciminib, ASC2ESCALATE, T315I mutation, BCR-ABL, MMR, TKI
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 34 participants (actual)
- Lead sponsor
- Novartis PharmaceuticalsIndustry (pharma, biotech, devices)
- Study start
- 11 Nov 2022 (actual)
- Primary completion
- 13 Aug 2025 (actual)
- Study completion
- 17 Oct 2027 (estimated)
- First posted
- 20 May 2022 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This will be a multicenter Phase II open-label study of asciminib in CML-CP patients who have been previously treated with one prior ATP- binding site TKI with discontinuation due to treatment failure, warning or intolerance. (2L patient cohort). In addition, newly diagnosed CML-CP patients who may have received up to 4 weeks of prior TKI are included in a separate 1L patient cohort.
Detailed description
This trial consists of three periods: screening and baseline for up to 28 days, active treatment for up to 156 weeks and a safety follow up period for 30 days.
Ninety-two (92) 2L patients with CML-CP without T315I mutation who had 1 prior ATP-binding site TKI discontinued due to treatment failure, warning or intolerance will be considered for the current study. Patients will be tested at screening for the T315I mutation and excluded if the mutation is found.
To gain additional insights into the effect of asciminib in the 1L setting, an additional cohort of newly diagnosed CML-CP patients will be enrolled in the study. Based on the number of participating sites, it is approximated that between 60 and 90 patients could be enrolled. Enrollment of the 1L cohort will be stopped when a maximum of 90 patients have been enrolled or when approximately 60 patients have been enrolled and the 2L cohort is fully recruited, whichever comes first.
Informed consent will be obtained before any procedures are performed for the study including eligibility assessments.
All eligible patients will be initially treated with asciminib at 80 mg QD. At 6 months of study treatment, patients who have achieved BCR-ABL1IS ≤1% will continue on the same dose whereas those who have not will increase dose to 200mg QD.
At 12 months of study treatment, patients will be evaluated for the primary endpoint of the study (MMR at 12 month in 2L patient cohort) and will pursue one of the following:
- Continue on the current dose of asciminib if MMR is achieved
- Increase dose to 200 mg QD if on 80 mg QD dosing and MMR is not achieved
- Increase dose to 200 mg BID if on 200 mg QD dosing and MMR is not achieved
- Take the patient off the study and switch to Investigator's agent of choice if MMR is not achieved and it is in the interest of the patient based on investigator's clinical judgment of prospect treatment benefit.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Asciminib | Experimental | Drug: asciminib80 mg initial oral dose taken once a day with possible dose escalation |
Who may qualify
- Ages
- 18 to 100 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (22 listed)
- Participants eligible for inclusion in this study must meet the following criteria: Criteria #1-5 are common to both patient cohorts (2L and 1L):
- Signed informed consent must be obtained prior to participation in the study
- CML-CP, no previous AP or BC
- ≥ 18 years of age
- ECOG performance status of 0, 1 or 2
Key exclusion criteria (27 listed)
- Previous treatment
- Previous treatment with asciminib
- Known presence of the T315I mutation at any time prior to study entry
- Known second chronic phase of CML after previous progression to AP/BC
- Previous treatment with a hematopoietic stem-cell transplantation
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| asciminibAlso: ABL001Supplied in 40 mg and 100 mg tablets for oral use to be taken daily. Dose may be increased at 6 and 12 months based on molecular response with BCR-ABL1 Polymerase Chain Reaction testing. | Drug | Asciminib |
Primary outcome
Percentage of participants who achieve Major Molecular Response (MMR) in the 2L setting
Time frame: Baseline up to 12 months
MMR is defined as BCR::ABL1IS ≤ 0.1%. A patient will be counted as having achieved MMR at 12 month if he/she meets the MMR criterion at 12 month.
15 secondary outcomes
Percentage of participants achieving Molecular Response 4.5 (MR4.5) at 24 and 36 months
Time frame: Baseline, 24 and 36 months
MMR Rate at visit (other than 12 month)
Time frame: Baseline, 3, 6, 18, 24, 30 and 36 months
MR2 Rate at visit
Time frame: Baseline, 3, 6, 12, 18, 24, 30 and 36 months
MR4 Rate at visit
Time frame: Baseline, 3, 6, 12, 18, 24, 30 and 36 months
MR4.5 Rate at visit
Time frame: Baseline, 3, 6, 12, 18 and 30 months
MMR Rate by visit
Time frame: Baseline up to 3, 6, 12, 18, 24, 30 and 36 months
MR2 Rate by visit
Time frame: Baseline up to 3, 6, 12, 18, 24, 30 and 36 months
MR4 Rate by visit
Time frame: Baseline up to 3, 6, 12, 18, 24, 30 and 36 months
MR4.5 Rate by visit
Time frame: Baseline up to 3, 6, 12, 18, 24, 30 and 36 months
Time to MMR
Time frame: Baseline up to 36 months
Duration of MMR
Time frame: Baseline up to 36 months
Time to Treatment Failure (TTF)
Time frame: Baseline up to 36 months
Progression Free Survival (PFS)
Time frame: Baseline up to 36 months
Overall Survival (OS)
Time frame: Baseline up to 36 months.
Number of Adverse Events and Serious Adverse Events
Time frame: Baseline up to 36 months
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 14 Oct 2025.
- Derived from this study: PubMed 39387441Atallah EL, Mauro MJ, Sasaki K, Levy MY, Koller P, Yang D, Laine D, Sabo J, Gu E, Cortes JE. Dose-escalation of second-line and first-line asciminib in chronic myeloid leukemia in chronic phase: the ASC2ESCALATE Phase II trial. Future Oncol. 2024;20(38):3065-3075. doi: 10.1080/14796694.2024.2402680. Epub 2024 Oct 10.
- Individual participant dataSharing planned: Yes. Novartis is committed to sharing with qualified external researchers, access to patient-level data and supporting clinical documents from eligible studies. These requests are reviewed and approved by an independent review panel on the basis of scientific merit. All data provided is anonymized to respect the privacy of patients who have participated in the trial in line with applicable laws and regulations. This trial data availability is according to the criteria and process described on www.clinicalstudydatarequest.com
Related trials for Chronic Myelogenous Leukemia - Chronic Phase
RecruitingPhase 1
Vididencel in CML-CP Patients With MRD
CML (Chronic Myelogenous Leukemia)
Active, not recruitingPhase 2
Clofarabine and Melphalan Before Donor Stem Cell Transplant in Treating Patients With Myelodysplasia, Acute Leukemia in Remission, or Chronic Myelomonocytic Leukemia
Adult Acute Lymphoblastic Leukemia in Remission, Acute Myeloid Leukemia Arising From Previous Myelodysplastic Syndrome
RecruitingObservational study
Collecting Blood Samples From Patients With and Without Cancer to Evaluate Tests for Early Cancer Detection
Acute Lymphoblastic Leukemia, Acute Myeloid Leukemia
RecruitingPhase 1
Phase 1 Study of 6MW5311 in Adults With Relapsed or Refractory Blood Cancers
AML, Multiple Myeloma
RecruitingPhase 2
Personalized NK Cell Therapy in CBT
Accelerated Phase Chronic Myelogenous Leukemia, BCR-ABL1 Positive, Acute Biphenotypic Leukemia
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Novartis study director
Novartis
80 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing asciminib in people with Chronic Myelogenous Leukemia - Chronic Phase, run by Novartis Pharmaceuticals at 80 sites in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 22 inclusion and 27 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: under way, not looking for participants, as of the sponsor's last update on 14 Oct 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 80 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Percentage of participants who achieve Major Molecular Response (MMR) in the 2L setting (time frame: Baseline up to 12 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT05384587, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Oct 2025.