ClinicalTrials.gg
Active, not recruitingNCT05456191ASC4STARTUpdated Aug 26, 2026Results posted

A Study to Investigate Tolerability and Efficacy of Asciminib (Oral) Versus Nilotinib (Oral) in Adult Participants (≥18 Years of Age) With Newly Diagnosed Philadelphia Chromosome Positive Chronic Myelogenous Leukemia in Chronic Phase (Ph+ CML-CP)

A Phase 3 interventional study of Asciminib and Nilotinib in Philadelphia Chromosome-Positive Chronic Myeloid Leukemia, sponsored by Novartis Pharmaceuticals. Active, not recruiting at 119 sites in 24 countries. Open to participants aged 18 Years to 100 Years. Per ClinicalTrials.gov, last updated 2026-08-26.

Sponsored by Novartis Pharmaceuticals (part of Novartis) · Phase 3, Interventional, and Treatment

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Phase
Phase 3
Study type
Interventional
Enrollment
568
Allocation
Randomized
Ages
18 Years to 100 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-14

Among 21 studies testing asciminib in Leukemia, Myelogenous, Chronic, BCR-ABL Positive — 8 open to participants now, 13 under way, 2 of them phase 3. asciminib · Leukemia, Myelogenous, Chronic, BCR-ABL Positive.

Enrollment
Largest of 21
568 · median 100
Started
2022
with 2 others
Phase 3
5 of 21
none open now
Primary completion
2025-05
later than 1 of 12 live
Registered
15th of 21
by date
Lead sponsor
12 of 21
Novartis Pharmaceuticals

Among the 21 studies testing asciminib in Leukemia, Myelogenous, Chronic, BCR-ABL Positive, this one has the largest enrollment, is one of 3 that started in 2022, is one of 5 in phase 3, reaches primary completion later than 1 of the 12 other live ones, and was the 15th registered.

Leukemia, Myelogenous, Chronic, BCR-ABL Positive

894 studies on the registry are indexed under Leukemia, Myelogenous, Chronic, BCR-ABL Positive; 109 are open to participants now.

Browse Leukemia, Myelogenous, Chronic, BCR-ABL Positive studies →

Open to participants now

8 of the 21 studies testing asciminib in Leukemia, Myelogenous, Chronic, BCR-ABL Positive are open now, in 12 countries. Recruiting first, the newest first:

3 more — sign in →

By country, each count listing its studies:

All 8 open studies →

About asciminib

asciminib: first FDA approval 2021 (SCEMBLIX), first EMA approval 2022. What it is approved for, and how studies give it, is on its page →

Who these studies take

Of the 79 Leukemia, Myelogenous, Chronic, BCR-ABL Positive studies recruiting now, 48 (61%) set no upper age limit and 20 (25%) stop at 75 or younger; 20 take children under 18; 7 take healthy volunteers.

This study: 18 Years to 100 Years · all sexes · no healthy volunteers.

The full table on the hub →

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 21 studies testing asciminib in Leukemia, Myelogenous, Chronic, BCR-ABL Positive, or all of them as a file.
02

Study summary

The primary purpose of this study was to assess the tolerability of oral asciminib (80 mg QD) in comparison with that of the second generation (2G) Tyrosine Kinase Inhibitor (TKI) nilotinib (300 mg BID), in adult patients with newly diagnosed Positive Chronic Myelogenous Leukemia in Chronic Phase (Ph+ CML-CP).

Read the detailed description

The study is designed to compare the tolerability of asciminib with nilotinib for the treatment of newly diagnosed, previously untreated patients with Ph+ CML-CP and has 3 phases: Treatment Phase, Optional Treatment-Free Remission (TFR) Phase, and Treatment Re-initiation (TRI) Phase.

Participants were randomized in the study in a 1:1 ratio to asciminib or nilotinib. No crossover of study treatment across arms were allowed.

Randomization was stratified based on European Treatment Outcome Study (EUTOS) long-term survival (ELTS) score (low versus intermediate versus high) to help achieve a balance between the treatment arms.

An interim analysis was planned in the protocol when 46 discontinuations due to AE occurred. The purpose of the interim analysis was to allow an early assessment of the tolerability of asciminib and the goal was to continue to primary analysis regardless of the outcome of the interim analysis. Therefore, following the interim analysis, the primary analysis was performed when approximately 65 discontinuations of either study treatment due to Adverse Event (AE) occurred.

Eligible participants on both arms may choose to participate in an optional 2-year Treatment Free Remission (TFR) Phase. Participants with loss of Major Molecular Response (MMR) during TFR Phase will enter the Treatment Re-initiation (TRI) Phase. Additionally, treatment re-initiation in the TRI Phase may be based on investigator or participant decision.

03

Conditions studied

  • Philadelphia Chromosome-Positive Chronic Myeloid Leukemia

Keywords

  • Asciminib
  • ABL001
  • Abelson proto-oncogene
  • ABL
  • newly diagnosed Chronic Myelogenous Leukemia
  • CML
  • Chronic Myeloid Leukemia
  • Chronic Myelocytic Leukemia
  • Chronic Granulocytic Leukemia
  • CGL
  • cancer of the white blood cells
  • clonal bone marrow stem cell disorder proliferation of mature granulocytes
  • Chronic Myeloproliferative Disorders
  • Philadelphia chromosome
  • Nilotinib
  • Leukemia
  • Phase 3
  • Tyrosine Kinase Inhibitor
  • TKI
  • Treatment Free Remission
  • TFR
  • Treatment Re-initiation
  • TRI
04

Who can participate

Ages eligible
18 Years to 100 Years
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Key Inclusion Criteria:

  • Signed must be obtained prior to participation in the study.
  • Male or female patients ≥ 18 years of age.
  • Patients with CML-CP within 3 months of diagnosis.
  • Diagnosis of CML-CP (European Leukemia Network [ELN] 2020 criteria) with cytogenetic confirmation of the Philadelphia (Ph) chromosome. A cryptic Ph chromosome should be confirmed by metaphase Fluorescence in situ Hybridization (FISH) • Documented chronic phase CML will meet all the below criteria (Baccarani et al 2013): \~ \< 15% blasts in peripheral blood and bone marrow,

    \~ \< 30% blasts plus promyelocytes in peripheral blood and bone marrow,

    \~\< 20% basophils in the peripheral blood,

    • (PLT) count ≥ 100 x 109/L (≥ 100,000/mm3),
    • No evidence of extramedullary leukemic involvement, with the exception of hepatosplenomegaly.
  • Evidence of typical BCR::ABL1 transcript [e14a2 and/or e13a2] which is amenable to standardized RQ-PCR quantification by the central laboratory assessment. However, if a local qualitative assay, validated according to local regulation, from an accredited local laboratory has confirmed evidence of typical BCR::ABL1 transcript [e14a2 and/or e13a2], these results can be used for eligibility if the central Real Time Quantitative Polymerase Chain Reaction (RQ-PCR) results arrived are not available at the time of randomization.
  • (ECOG) performance status of 0 or 1.
  • Adequate end organ function as defined by:

    • Total (TBL) \< 3 x (ULN); patients with Gilbert's syndrome may only be included if TBL ≤ 3.0 x ULN or direct bilirubin ≤ 1.5 x ULN,
    • (CrCl) ≥ 30 milliliters per minute (mL/min) as calculated using Cockcroft-Gault formula, Serum lipase ≤ 1.5 x ULN. For serum lipase > ULN - ≤ 1.5 x ULN, value must be considered not and not associated with risk factors for acute pancreatitis.
  • Patients must have the following laboratory values within normal limits or corrected to within normal limits with supplements prior to randomization:

    • Potassium (potassium increase of up to 6.0 mmol/L is acceptable if associated with CrCl* ≥ 90 mL/min)**,
    • Total calcium (corrected for serum albumin); (calcium increase of up to 12.5 mg/dl or 3.1 mmol/L is acceptable if associated with CrCl* ≥ 90 mL/min),
    • Magnesium (magnesium increase of up to 3.0 mg/dL or 1.23 mmol/L if associated with CrCl* ≥ 90 mL/min),
    • For patients with mild to moderate renal impairment (CrCl* ≥ 30 mL/min and \<90 mL/min) - potassium, total calcium (corrected for serum albumin) and magnesium should be within normal limits or corrected to within normal limits with supplements prior to randomization.

      • CrCl as calculated using Cockcroft-Gault formula.

        • pseudohyperkaliemia in case of thrombocytosis is not an exclusion criterion.

Inclusion Criteria for optional Treatment Free Remission (TFR) Phase:

  • Willingness and ability to comply with scheduled visits, treatment plans, laboratory tests and other study procedures
  • A minimum of 3 years (156 weeks) of treatment on study, up-to maximum of 5 years (260 weeks) of treatment.
  • Sustained MR4.5 (BCR:ABL1 ≤0.0032% IS) for at least 1 year (≥52 weeks) immediately prior to entry into the TFR Phase, defined as 5 consecutive (every 12 weeks) central laboratory RQ-PCR assessments at MR4.5 or below for the course of at least a year. Entry into TFR Phase should be at an unscheduled visit or next scheduled visit no later than 12 Weeks from the last RQ-PCR assessment date at MR4.5 or lower.
  • Separate signed informed consent must be obtained prior to participation in the TFR Phase.

Key Exclusion Criteria:

  • Previous treatment of CML with any other anticancer agents including chemotherapy and/or biologic agents or prior stem cell transplant, with the exception of hydroxyurea and/or anagrelide.
  • Known cytopathologically confirmed central nervous system (CNS) infiltration (in absence of suspicion of CNS involvement, lumbar puncture not required).
  • Impaired cardiac function or cardiac repolarization abnormality including but not limited to any one of the following:

    • History of myocardial infarction (MI), angina pectoris, coronary artery bypass graft (CABG) within 6 months prior to starting study treatment.
    • Clinically significant cardiac arrhythmias (e.g., ventricular tachycardia), complete left bundle branch block, high-grade atrioventricular (AV) block (e.g., bifascicular block, Mobitz type II and third degree AV block).
    • corrected by Fridericia's formula (QTcF) ≥ 450 ms on the average of three serial baseline (using the QTcF formula). If QTcF ≥ 450 ms and electrolytes are not within normal ranges, electrolytes should be corrected and then the patient re-screened for QTcF.
    • 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 crediblemeds.org that cannot be discontinued or replaced 7 days prior to starting study treatment by safe alternative medication.
      • Inability to determine the QTcF interval.
  • 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 significant congenital or acquired bleeding disorder unrelated to cancer.
  • Major surgery within 4 weeks prior to study entry or patients who have not recovered from prior surgery.
  • History of other active 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.
  • History of acute pancreatitis within 1 year prior to randomization or medical history of chronic pancreatitis.
  • History of chronic liver disease leading to severe hepatic impairment, or ongoing acute liver disease.
  • Known history of chronic (HBV), or chronic (HCV) infection. Testing for Hepatitis B surface antigen (HBs Ag) and Hepatitis B core antibody (HBc Ab/anti HBc) will be performed at screening. If anti-HBc is positive, HBV-DNA (deoxyribonucleic acid) evaluation will be carried out at screening. A patient having positive HBV-DNA will not be enrolled in the study. Also, a patient with positive HBsAg will not be enrolled in the study. HCV Ab testing will also be performed at screening. For details on the criteria see Appendix 10.4
  • History of (HIV) unless well-controlled on a stable dose of anti-retroviral therapy at the time of screening.
  • Impairment of gastrointestinal (GI) function or GI disease that may significantly alter the absorption of study treatment (e.g., ulcerative disease, uncontrolled nausea, vomiting, diarrhea, malabsorption syndrome, small bowel resection, or gastric bypass surgery).
  • Participation in a prior study within 30 days prior to randomization or within 5 half-lives of the investigational product, whichever is longer.
  • Pregnant or nursing (lactating) women
  • Women of , defined as all women physiologically capable of becoming pregnant, unless they are using highly effective methods of while taking study treatment and for a period of time after stopping study medication. For asciminib, this period of time is 3 days after last dose; if local regulations or locally approved prescribing information differ from the protocol required duration of contraception, the longer duration must be followed and the same requirements will be described in the Informed Consent Form (ICF). Participants taking nilotinib should be willing to follow contraception requirements in the locally-applicable prescribing information for nilotinib.

Highly effective contraception methods include:

  • Total abstinence (when this is in line with the preferred and usual lifestyle of the participant. 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 total hysterectomy or bilateral salpingectomy, at least six weeks before taking study treatment. In case of oophorectomy alone, only when the reproductive status of the woman has been confirmed by follow up hormone level assessment.
  • Bilateral tubal occlusion, Bilateral tubal ligation (at least six weeks before taking study treatment).
  • Male partner's sterilization (at least 6 months prior to screening). For female participants on the study, the vasectomized male partner should be the sole partner for that participant
  • Use of combined, estrogen and progesterone hormonal contraception associated with inhibition of ovulation: oral, intravaginal or transdermal. Progesterone only hormonal contraception associated with inhibition of ovulation: oral, injected or implanted, or placement of an intrauterine device (IUD) or intrauterine system (IUS).

In case of use of oral contraception women should have been stable on the same pill for a minimum of 3 months before taking study treatment.

Women are considered if they have had 12 months of natural (spontaneous) amenorrhea with an appropriate clinical profile (e.g., age appropriate history of vasomotor symptoms). Women are considered not of child bearing potential if they are post-menopausal or have had surgical bilateral oophorectomy (with or without hysterectomy), total hysterectomy or bilateral salpingectomy at least six weeks prior to enrollment on the study. 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 to be not of child bearing potential.

Sexually active males taking study treatment do not require contraception. - Known to the study treatment. Note: The Investigator has the discretion to include/exclude a patient in the study, who will be found to have symptoms representative of coronavirus disease of 2019 (COVID-19) or tested positive for COVID-19 during the screening phase. Such patients should be managed as per the country specific guidelines related to COVID-19. For patients who test positive for COVID-19, re-testing is recommended before initiating study treatment.

Exclusion Criteria for optional Treatment Free Remission (TFR) Phase:

  • Participants in the TRI Phase cannot re-enter the TFR Phase for second attempt TFR.

Exclusion criteria for Treatment Re-initiation (TRI) Phase

  • In case of a pregnancy or nursing (lactating) during the TFR Phase, the female participant must be discontinued from the study upon loss of MMR (>0.1% BCR::ABL1 IS at a single assessment) and cannot enter the TRI Phase.
  • Relevant exclusion criteria for treatment phase apply including but not limited to:

    • Impaired cardiac function or cardiac repolarization abnormality.
    • 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.
    • Impairment of gastrointestinal (GI) function or GI disease that may significantly alter the absorption of study treatment (e.g., ulcerative disease, uncontrolled nausea, vomiting, diarrhea, malabsorption syndrome, small bowel resection, or gastric bypass surgery).
Terms in these criteria, in plain language(18)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

QT and QTc

On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.

The study may name a correction formula and a limit in milliseconds, often around 450–480.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
568 participants (actual)

Study arms

  • Experimental
    Asciminib

    Participants received asciminib 80 mg once a day (QD).

    Drug: Asciminib

  • Active comparator
    Nilotinib

    Participants will receive nilotinib 300 mg BID

    Drug: Nilotinib

Interventions

  • Asciminib 80 mg QD administered under fasting conditions.

    Also known as: ABL001

  • Nilotinib 300 mg twice a day (BID) was administered under fasting conditions.

06

What researchers measure

Primary outcomes

  1. Time to Discontinuation of Study Treatment Due to Adverse Event (TTDAE) (From Interim Analysis)

    TTDAE is defined as the interval from the date of first study treatment administration to the date of discontinuation of study treatment due to an adverse event (AE). The comparison between the asciminib and nilotinib treatment arms is performed using a cause-specific hazard model, in which discontinuations due to AE are considered the event of interest and discontinuations for reasons other than AE are treated as competing risks. The number of participants who discontinued study treatment due to AE within the specified timeframe is presented in the results table. The formal comparison between treatment arms is performed using a cause-specific hazard model, and the corresponding hazard ratio, confidence interval, and p-value are provided in the Statistical Analysis section. The TTDAE endpoint is event-driven by counting how many participants have experienced treatment discontinuations due to AE.

    Time frame: From date of first dose to date of treatment discontinuation due to AE, assessed after 50 events had occurred, about 2 years since first patient first visit (FPFV).

  2. Time to Discontinuation of Study Treatment Due to Adverse Event (TTDAE) (From Primary Analysis)

    TTDAE is defined as the interval from the date of first study treatment administration to the date of discontinuation of study treatment due to an adverse event (AE). The comparison between the asciminib and nilotinib treatment arms is performed using a cause-specific hazard model, in which discontinuations due to AE are considered the event of interest and discontinuations for reasons other than AE are treated as competing risks. The number of participants who discontinued study treatment due to AE within the specified timeframe is presented in the results table. The formal comparison between treatment arms is performed using a cause-specific hazard model, and the corresponding hazard ratio, confidence interval, and p-value are provided in the Statistical Analysis section. The TTDAE endpoint is event-driven by counting how many participants have experienced treatment discontinuations due to AE.

    Time frame: From date of first dose to date of treatment discontinuation due to AE, assessed after 67 events had occurred, about 2.5 years since first patient first visit (FPFV),

Secondary outcomes

  1. Percentage of Participants With Major Molecular Response (MMR) at Scheduled Data Collection Time Points

    MMR will be assessed using fusion gene of the BCR and ABL genes (BCR-ABL) transcript levels measured by realtime quantitative polymerase chain reaction. The percentage of participants with MMR at each time point will be assessed.

    Time frame: approximately 7.5 years

  2. Percentage of Participants With Major Molecular Response (MMR) by Scheduled Data Collection Time Points

    MMR will be assessed using BCR-ABL transcript levels measured by realtime quantitative polymerase chain reaction. The percentage of participants who meet the criteria for having achieved the endpoint (MMR) at or before the specified visit will be calculated.

    Time frame: approximately 7.5 years

  3. Percentage of Participants With MR4.0 at Scheduled Data Collection Time Points

    MR4.0 will be assessed using BCR-ABL transcript levels measured by realtime quantitative polymerase chain reaction. The percentage of participants with MR4.0 at each time point will be assessed.

    Time frame: approximately 7.5 years

  4. Percentage of Participants With MR4.0 by Scheduled Data Collection Time Points

    MR4.0 will be assessed using BCR-ABL transcript levels measured by realtime quantitative polymerase chain reaction. The percentage of participants who meet the criteria for having achieved the endpoint (MR4.0) at or before the specified visit will be calculated

    Time frame: approximately 7.5 years

  5. Percentage of Participants With MR4.5 at Scheduled Data Collection Time Points

    MR4.5 will be assessed using BCR-ABL transcript levels measured by realtime quantitative polymerase chain reaction. The percentage of participants with MR4.5 at each time point will be assessed.

    Time frame: approximately 7.5 years

  6. Percentage of Participants With MR4.5 by Scheduled Data Collection Time Points

    MR4.5 will be assessed using BCR-ABL transcript levels measured by realtime quantitative polymerase chain reaction. The percentage of participants who meet the criteria for having achieved the endpoint (MR4.5) at or before the specified visit will be calculated

    Time frame: approximately 7.5 years

  7. Percentage of Participants With Complete Hematological Response (CHR) at Scheduled Data Collection Time Points

    Hematologic response will be assessed by complete blood count and physical examination at each visit. The percentage of participants with CHR at each time point will be assessed.

    Time frame: approximately 7.5 years

  8. Percentage of Participants With Complete Hematological Response (CHR) by Scheduled Data Collection Time Points

    Hematologic response will be assessed by complete blood count and physical examination at each visit. The percentage of participants who meet the criteria for having achieved the endpoint (CHR) at or before the specified visit will be calculated

    Time frame: approximately 7.5 years

  9. Percentage of Participants With BCR::ABL1 Ratio ≤1% at Scheduled Data Collection Time Points

    The percentage of participants who meet the criteria for having achieved BCR::ABL1 ratio ≤1% at the specified visit will be calculated

    Time frame: approximately 7.5 years

  10. Percentage of Participants With BCR::ABL1 Ratio ≤1% by Scheduled Data Collection Timepoints

    The percentage of participants who meet the criteria for having achieved BCR::ABL1 ratio ≤1% at or before the specified visit will be calculated

    Time frame: approximately 7.5 years

  11. Duration of MMR

    Duration of MMR is defined as the time between the date of the first documented achievement MMR and the earliest date of loss of MMR, treatment failure, progression to AP/BC, or CML-related death.

    Time frame: approximately 7.5 years

  12. Duration of MR4.0

    Duration of MR4.0 is defined as the time between the date of the first documented achievement MR4 and the earliest date of loss of MR4, treatment failure, progression to AP/BC, or CML-related death

    Time frame: approximately 7.5 years

  13. Duration of MR4.5

    Duration of MR4.5 is defined as the time between the date of the first documented achievement MR4.5 and the earliest date of loss of MR4.5, treatment failure, progression to AP/BC, or CML-related death.

    Time frame: approximately 7.5 years

  14. Time to First MMR

    Time to first MMR is defined as the time from the date of randomization to the date of the first documented occurrence of MMR.

    Time frame: approximately 7.5 years

  15. Time to First MR4.0

    Time to first MR4.0 is defined as the time from the date of randomization to the date of the first documented occurrence of MR4.

    Time frame: approximately 7.5 years

  16. Time to First MR4.5

    Time to first MR4.5 is defined as the time from the date of randomization to the date of the first documented occurrence of MR4.5.

    Time frame: approximately 7.5 years

  17. Time to Treatment Failure (TTF).

    TTF is defined as the time from date of randomization to the first/earliest documented date of any of the following events: * Treatment failure per European leukemia network (ELN) criteria, * Confirmed loss of MMR (in 2 consecutive tests) at any time while on study treatment, * Discontinuation from study treatment due to any reason

    Time frame: approximately 7.5 years

  18. Event Free Survival (EFS)

    EFS is defined as the time from the date of the first dose of study treatment to the earliest occurrence of treatment failure, confirmed lost of MMR, discontinuation due to AE, progression to AP/BC, and death from any cause.

    Time frame: approximately 7.5 years

  19. Progression Free Survival (PFS).

    PFS is defined as the time from the date of randomization to the earliest occurrence of progression to AP/BC or death from any cause.

    Time frame: approximately 7.5 years

  20. Overall Survival (OS).

    OS is defined as the time from the date of randomization to the date of death from any cause.

    Time frame: approximately 7.5 years

  21. Time to Treatment Discontinuation (TTD) Due to Selected Reasons

    TTD is the time from the date of first dose of study treatment to the date of discontinuation of study treatment due to lack of efficacy, treatment failure, disease progression, suboptimal response or death

    Time frame: approximately 7.5 years

  22. Change From Baseline in Overall Scores and Individual Scales of the European Organization for Research and Treatment of Cancer - Quality of Life Questionnaire (EORTC QLQ-C30)

    Change from baseline in Overall Scores and individual domains of the EORTC QLQ-C30. The EORTC QLQ-C30 contains 30 items and is composed of both multi-item scales and single-item measures based on the participant's experience over the past week. These include five functional scales (physical, role, emotional, cognitive and social functioning), three symptom scales (fatigue, nausea/vomiting, and pain), six single items (dyspnea, insomnia, appetite loss, constipation, diarrhea and financial impact) and a global health status/QoL scale.

    Time frame: approximately 7.5 years

  23. Change From Baseline in Overall Scores and Individual Scales of the European Organization for Research and Treatment of Cancer CML Module (EORTC QLQ-CML24)

    Change from baseline in Overall Scores and individual domains of the EORTC QLQ-CML24. The EORTC QLQ-CML24 assesses specific concepts relevant to the experience of patients with CML. The QLQ-CML24 has 24 items which assess symptom burden, impact on daily life and on worry/mood, body image problems, and satisfaction with care and with social life based on the participant's experience over the past week.

    Time frame: approximately 7.5 years

07

Results

Posted May 27, 2026

Participant flow

568 participants with Chronic Myelogenous Leukemia in Chronic Phase (CML-CP) were enrolled into this study from 120 sites in 24 countries.

Participant flow — Overall Study
MilestoneAsciminibNilotinib
Started284284
Participants treated284282
Participants not treated02
Completed234204
Not completed5080
Withdrew: Adverse event2044
Withdrew: Unsatisfactory therapeutic effect1921
Withdrew: Progressive disease31
Withdrew: Physician decision23
Withdrew: Death21
Withdrew: Protocol violation21
Withdrew: Withdrawal by subject13
Withdrew: Withdrawal of informed consent10
Withdrew: Pregnancy02
Withdrew: Requires prohibited medication01
Withdrew: Technical problems01
Withdrew: Participants not treated02

Outcome measures

PrimaryTime to Discontinuation of Study Treatment Due to Adverse Event (TTDAE) (From Interim Analysis)

TTDAE is defined as the interval from the date of first study treatment administration to the date of discontinuation of study treatment due to an adverse event (AE). The comparison between the asciminib and nilotinib treatment arms is performed using a cause-specific hazard model, in which discontinuations due to AE are considered the event of interest and discontinuations for reasons other than AE are treated as competing risks. The number of participants who discontinued study treatment due to AE within the specified timeframe is presented in the results table. The formal comparison between treatment arms is performed using a cause-specific hazard model, and the corresponding hazard ratio, confidence interval, and p-value are provided in the Statistical Analysis section. The TTDAE endpoint is event-driven by counting how many participants have experienced treatment discontinuations due to AE.

Time frame:
From date of first dose to date of treatment discontinuation due to AE, assessed after 50 events had occurred, about 2 years since first patient first visit (FPFV).
Reported as:
Count of participants · Participants
Time to Discontinuation of Study Treatment Due to Adverse Event (TTDAE) (From Interim Analysis)
ParticipantsAsciminibNilotinib
Time to Discontinuation of Study Treatment Due to Adverse Event (TTDAE) (From Interim Analysis)1634
Statistical analysis
  • Asciminib vs Nilotinib · The cause-specific hazard model · p = 0.004 (p value is less than the pre-specified boundary of 0.0062. The study met its primary objective based on the formal interim analysis.) · Hazard ratio (hr): 0.45 · 95% CI 0.25 to 0.81Stratified by EUTOS long-term survival (ELTS) risk score from Interactive Response Technology (IRT)
PrimaryTime to Discontinuation of Study Treatment Due to Adverse Event (TTDAE) (From Primary Analysis)

TTDAE is defined as the interval from the date of first study treatment administration to the date of discontinuation of study treatment due to an adverse event (AE). The comparison between the asciminib and nilotinib treatment arms is performed using a cause-specific hazard model, in which discontinuations due to AE are considered the event of interest and discontinuations for reasons other than AE are treated as competing risks. The number of participants who discontinued study treatment due to AE within the specified timeframe is presented in the results table. The formal comparison between treatment arms is performed using a cause-specific hazard model, and the corresponding hazard ratio, confidence interval, and p-value are provided in the Statistical Analysis section. The TTDAE endpoint is event-driven by counting how many participants have experienced treatment discontinuations due to AE.

Time frame:
From date of first dose to date of treatment discontinuation due to AE, assessed after 67 events had occurred, about 2.5 years since first patient first visit (FPFV),
Reported as:
Count of participants · Participants
Time to Discontinuation of Study Treatment Due to Adverse Event (TTDAE) (From Primary Analysis)
ParticipantsAsciminibNilotinib
Time to Discontinuation of Study Treatment Due to Adverse Event (TTDAE) (From Primary Analysis)2245
Statistical analysis
  • Asciminib vs Nilotinib · The cause specific hazard model · p = 0.001 · Hazard ratio (hr): 0.46 · 95% CI 0.27 to 0.76Stratified by EUTOS long-term survival (ELTS) risk score from Interactive Response Technology (IRT)
SecondaryPercentage of Participants With Major Molecular Response (MMR) at Scheduled Data Collection Time Points

MMR will be assessed using fusion gene of the BCR and ABL genes (BCR-ABL) transcript levels measured by realtime quantitative polymerase chain reaction. The percentage of participants with MMR at each time point will be assessed.

Time frame:
approximately 7.5 years

Results for this outcome have not been posted.

SecondaryPercentage of Participants With Major Molecular Response (MMR) by Scheduled Data Collection Time Points

MMR will be assessed using BCR-ABL transcript levels measured by realtime quantitative polymerase chain reaction. The percentage of participants who meet the criteria for having achieved the endpoint (MMR) at or before the specified visit will be calculated.

Time frame:
approximately 7.5 years

Results for this outcome have not been posted.

SecondaryPercentage of Participants With MR4.0 at Scheduled Data Collection Time Points

MR4.0 will be assessed using BCR-ABL transcript levels measured by realtime quantitative polymerase chain reaction. The percentage of participants with MR4.0 at each time point will be assessed.

Time frame:
approximately 7.5 years

Results for this outcome have not been posted.

SecondaryPercentage of Participants With MR4.0 by Scheduled Data Collection Time Points

MR4.0 will be assessed using BCR-ABL transcript levels measured by realtime quantitative polymerase chain reaction. The percentage of participants who meet the criteria for having achieved the endpoint (MR4.0) at or before the specified visit will be calculated

Time frame:
approximately 7.5 years

Results for this outcome have not been posted.

SecondaryPercentage of Participants With MR4.5 at Scheduled Data Collection Time Points

MR4.5 will be assessed using BCR-ABL transcript levels measured by realtime quantitative polymerase chain reaction. The percentage of participants with MR4.5 at each time point will be assessed.

Time frame:
approximately 7.5 years

Results for this outcome have not been posted.

SecondaryPercentage of Participants With MR4.5 by Scheduled Data Collection Time Points

MR4.5 will be assessed using BCR-ABL transcript levels measured by realtime quantitative polymerase chain reaction. The percentage of participants who meet the criteria for having achieved the endpoint (MR4.5) at or before the specified visit will be calculated

Time frame:
approximately 7.5 years

Results for this outcome have not been posted.

SecondaryPercentage of Participants With Complete Hematological Response (CHR) at Scheduled Data Collection Time Points

Hematologic response will be assessed by complete blood count and physical examination at each visit. The percentage of participants with CHR at each time point will be assessed.

Time frame:
approximately 7.5 years

Results for this outcome have not been posted.

SecondaryPercentage of Participants With Complete Hematological Response (CHR) by Scheduled Data Collection Time Points

Hematologic response will be assessed by complete blood count and physical examination at each visit. The percentage of participants who meet the criteria for having achieved the endpoint (CHR) at or before the specified visit will be calculated

Time frame:
approximately 7.5 years

Results for this outcome have not been posted.

SecondaryPercentage of Participants With BCR::ABL1 Ratio ≤1% at Scheduled Data Collection Time Points

The percentage of participants who meet the criteria for having achieved BCR::ABL1 ratio ≤1% at the specified visit will be calculated

Time frame:
approximately 7.5 years

Results for this outcome have not been posted.

SecondaryPercentage of Participants With BCR::ABL1 Ratio ≤1% by Scheduled Data Collection Timepoints

The percentage of participants who meet the criteria for having achieved BCR::ABL1 ratio ≤1% at or before the specified visit will be calculated

Time frame:
approximately 7.5 years

Results for this outcome have not been posted.

SecondaryDuration of MMR

Duration of MMR is defined as the time between the date of the first documented achievement MMR and the earliest date of loss of MMR, treatment failure, progression to AP/BC, or CML-related death.

Time frame:
approximately 7.5 years

Results for this outcome have not been posted.

SecondaryDuration of MR4.0

Duration of MR4.0 is defined as the time between the date of the first documented achievement MR4 and the earliest date of loss of MR4, treatment failure, progression to AP/BC, or CML-related death

Time frame:
approximately 7.5 years

Results for this outcome have not been posted.

SecondaryDuration of MR4.5

Duration of MR4.5 is defined as the time between the date of the first documented achievement MR4.5 and the earliest date of loss of MR4.5, treatment failure, progression to AP/BC, or CML-related death.

Time frame:
approximately 7.5 years

Results for this outcome have not been posted.

SecondaryTime to First MMR

Time to first MMR is defined as the time from the date of randomization to the date of the first documented occurrence of MMR.

Time frame:
approximately 7.5 years

Results for this outcome have not been posted.

SecondaryTime to First MR4.0

Time to first MR4.0 is defined as the time from the date of randomization to the date of the first documented occurrence of MR4.

Time frame:
approximately 7.5 years

Results for this outcome have not been posted.

SecondaryTime to First MR4.5

Time to first MR4.5 is defined as the time from the date of randomization to the date of the first documented occurrence of MR4.5.

Time frame:
approximately 7.5 years

Results for this outcome have not been posted.

SecondaryTime to Treatment Failure (TTF).

TTF is defined as the time from date of randomization to the first/earliest documented date of any of the following events: * Treatment failure per European leukemia network (ELN) criteria, * Confirmed loss of MMR (in 2 consecutive tests) at any time while on study treatment, * Discontinuation from study treatment due to any reason

Time frame:
approximately 7.5 years

Results for this outcome have not been posted.

SecondaryEvent Free Survival (EFS)

EFS is defined as the time from the date of the first dose of study treatment to the earliest occurrence of treatment failure, confirmed lost of MMR, discontinuation due to AE, progression to AP/BC, and death from any cause.

Time frame:
approximately 7.5 years

Results for this outcome have not been posted.

SecondaryProgression Free Survival (PFS).

PFS is defined as the time from the date of randomization to the earliest occurrence of progression to AP/BC or death from any cause.

Time frame:
approximately 7.5 years

Results for this outcome have not been posted.

SecondaryOverall Survival (OS).

OS is defined as the time from the date of randomization to the date of death from any cause.

Time frame:
approximately 7.5 years

Results for this outcome have not been posted.

SecondaryTime to Treatment Discontinuation (TTD) Due to Selected Reasons

TTD is the time from the date of first dose of study treatment to the date of discontinuation of study treatment due to lack of efficacy, treatment failure, disease progression, suboptimal response or death

Time frame:
approximately 7.5 years

Results for this outcome have not been posted.

SecondaryChange From Baseline in Overall Scores and Individual Scales of the European Organization for Research and Treatment of Cancer - Quality of Life Questionnaire (EORTC QLQ-C30)

Change from baseline in Overall Scores and individual domains of the EORTC QLQ-C30. The EORTC QLQ-C30 contains 30 items and is composed of both multi-item scales and single-item measures based on the participant's experience over the past week. These include five functional scales (physical, role, emotional, cognitive and social functioning), three symptom scales (fatigue, nausea/vomiting, and pain), six single items (dyspnea, insomnia, appetite loss, constipation, diarrhea and financial impact) and a global health status/QoL scale.

Time frame:
approximately 7.5 years

Results for this outcome have not been posted.

SecondaryChange From Baseline in Overall Scores and Individual Scales of the European Organization for Research and Treatment of Cancer CML Module (EORTC QLQ-CML24)

Change from baseline in Overall Scores and individual domains of the EORTC QLQ-CML24. The EORTC QLQ-CML24 assesses specific concepts relevant to the experience of patients with CML. The QLQ-CML24 has 24 items which assess symptom burden, impact on daily life and on worry/mood, body image problems, and satisfaction with care and with social life based on the participant's experience over the past week.

Time frame:
approximately 7.5 years

Results for this outcome have not been posted.

Adverse events

Collected over Adverse Events (AEs) were reported from the first dose of study treatment until end of treatment plus 30 days post treatment. AEs reported in this record are from first dose of study treatment until data cut-off on 15-May-2025 (approx. 2.5 years).. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Asciminib2/284 (0.7%)47/284 (16.5%)213/284 (75%)
Nilotinib1/282 (0.4%)42/282 (14.9%)235/282 (83.3%)
All Participants3/566 (0.5%)89/566 (15.7%)448/566 (79.2%)
Most frequent serious events
Showing 10 of 94
Most frequent serious events
EventAsciminibNilotinibAll Participants
ThrombocytopeniaBlood and lymphatic system disorders2/2845/2827/566
PancreatitisGastrointestinal disorders1/2843/2824/566
Pancreatitis acuteGastrointestinal disorders0/2843/2823/566
Drug-induced liver injuryHepatobiliary disorders0/2843/2823/566
PneumoniaInfections and infestations3/2841/2824/566
Atrial fibrillationCardiac disorders0/2842/2822/566
Febrile neutropeniaBlood and lymphatic system disorders2/2840/2822/566
Acute left ventricular failureCardiac disorders0/2841/2821/566
Acute myocardial infarctionCardiac disorders0/2841/2821/566
Arteriospasm coronaryCardiac disorders0/2841/2821/566
Most frequent other events
Showing 10 of 29
Most frequent other events
EventAsciminibNilotinibAll Participants
RashSkin and subcutaneous tissue disorders33/28448/28281/566
ThrombocytopeniaBlood and lymphatic system disorders46/28440/28286/566
Alanine aminotransferase increasedInvestigations15/28442/28257/566
HeadacheNervous system disorders38/28441/28279/566
Blood bilirubin increasedInvestigations6/28439/28245/566
FatigueGeneral disorders32/28435/28267/566
MyalgiaMusculoskeletal and connective tissue disorders35/28426/28261/566
ArthralgiaMusculoskeletal and connective tissue disorders22/28432/28254/566
NauseaGastrointestinal disorders32/28421/28253/566
DiarrhoeaGastrointestinal disorders31/28424/28255/566

Baseline characteristics

The Full analysis set (FAS) comprises all participants to whom study treatment has been assigned by randomization.

Age, Continuous
Age, Continuous(years)AsciminibNilotinibTotal
Mean48.3 ± 14.7448.8 ± 15.0448.6 ± 14.88
Sex: Female, Male
Sex: Female, Male(Participants)AsciminibNilotinibTotal
Female107126233
Male177158335
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)AsciminibNilotinibTotal
White227217444
Asian404686
Black or African American121022
Not reported268
Unknown213
American Indian or Alaska Native112
Multiple022
Native Hawaiian or Other Pacific Islander011
08

Study locations

119 sites
  • Rocky Mountain Cancer Centers
    Denver, Colorado 80218, United States
  • Illinois Cancer Care
    Peoria, Illinois 61615, United States
  • Regions Hospital
    Saint Paul, Minnesota 55101, United States
  • Messino Cancer Centers
    Asheville, North Carolina 28806, United States
  • Oncology Hematology Care Inc
    Cincinnati, Ohio 45242, United States
  • Williamette Cancer Center
    Eugene, Oregon 97401, United States
  • Texas Oncology P A
    Bedford, Texas 76022, United States
  • Texas Oncology PA Bedford
    Bedford, Texas 76022, United States
  • Virginia Oncology Associates
    Norfolk, Virginia 23502, United States
  • Novartis Investigative Site
    CABA, Buenos Aires C1221ADH, Argentina
  • Novartis Investigative Site
    Buenos Aires, C1039AAC, Argentina
  • Novartis Investigative Site
    Buenos Aires, C1114AAN, Argentina
  • Novartis Investigative Site
    Buenos Aires, C1425AUM, Argentina
  • Novartis Investigative Site
    CABA, C1181ACH, Argentina
  • Novartis Investigative Site
    Pleven, 5800, Bulgaria
  • Novartis Investigative Site
    Plovdiv, 4002, Bulgaria
  • Novartis Investigative Site
    Sofia, 1431, Bulgaria
  • Novartis Investigative Site
    Sofia, 1797, Bulgaria
  • Novartis Investigative Site
    Varna, 9010, Bulgaria
  • Novartis Investigative Site
    London, Ontario N6A 5W9, Canada
  • Novartis Investigative Site
    Toronto, Ontario M5G 2M9, Canada
  • Novartis Investigative Site
    Brno, 625 00, Czechia
  • Novartis Investigative Site
    Plzen Bory, 301 00, Czechia
  • Novartis Investigative Site
    Prague, 100 34, Czechia
  • Novartis Investigative Site
    Prague, 128 00, Czechia
  • Novartis Investigative Site
    Bordeaux, 33076, France
  • Novartis Investigative Site
    Caen, 14033, France
  • Novartis Investigative Site
    Clermont-Ferrand, 63003, France
  • Novartis Investigative Site
    Lille, 59037, France
  • Novartis Investigative Site
    Lyon, 69373, France
  • Novartis Investigative Site
    Marseille, 13273, France
  • Novartis Investigative Site
    Nantes, 44093, France
  • Novartis Investigative Site
    Nice, 06202, France
  • Novartis Investigative Site
    Paris, 75475, France
  • Novartis Investigative Site
    Poitiers, 86021, France
  • Novartis Investigative Site
    Strasbourg, 67000, France
  • Novartis Investigative Site
    Toulouse, 31059, France
  • Novartis Investigative Site
    Vandœuvre-lès-Nancy, 54511, France
  • Novartis Investigative Site
    Freiburg im Breisgau, Baden-Wurttemberg 79106, Germany
  • Novartis Investigative Site
    Mannheim, Baden-Wurttemberg 68305, Germany
  • Novartis Investigative Site
    Munich, Bavaria 81241, Germany
  • Novartis Investigative Site
    Würzburg, Bavaria 97080, Germany
  • Novartis Investigative Site
    Frankfurt am Main, Hesse 60590, Germany
  • Novartis Investigative Site
    Marburg, Hesse 35043, Germany
  • Novartis Investigative Site
    Paderborn, North Rhine-Westphalia 33098, Germany
  • Novartis Investigative Site
    Velbert, North Rhine-Westphalia 42551, Germany
  • Novartis Investigative Site
    Dresden, Saxony 01307, Germany
  • Novartis Investigative Site
    Leipzig, Saxony 04103, Germany
  • Novartis Investigative Site
    Halle, Saxony-Anhalt 06120, Germany
  • Novartis Investigative Site
    Jena, Thuringia 07740, Germany
  • Novartis Investigative Site
    Aachen, 52074, Germany
  • Novartis Investigative Site
    Augsburg, 86179, Germany
  • Novartis Investigative Site
    Bad Saarow, 15526, Germany
  • Novartis Investigative Site
    Bayreuth, 95445, Germany
  • Novartis Investigative Site
    Berlin, 13353, Germany
  • Novartis Investigative Site
    Bonn, 53105, Germany
  • Novartis Investigative Site
    Bremen, 28205, Germany
  • Novartis Investigative Site
    Chemnitz, 09113, Germany
  • Novartis Investigative Site
    Erlangen, 91054, Germany
  • Novartis Investigative Site
    Essen, 45147, Germany
  • Novartis Investigative Site
    Hamburg, 20246, Germany
  • Novartis Investigative Site
    Hanover, 30161, Germany
  • Novartis Investigative Site
    Heidelberg, 69120, Germany
  • Novartis Investigative Site
    Lübeck, 23538, Germany
  • Novartis Investigative Site
    Magdeburg, 39104, Germany
  • Novartis Investigative Site
    München, 80377, Germany
  • Novartis Investigative Site
    Regensburg, 93049, Germany
  • Novartis Investigative Site
    Tübingen, 72076, Germany
  • Novartis Investigative Site
    Ulm, 89081, Germany
  • Novartis Investigative Site
    Athens, 106 76, Greece
  • Novartis Investigative Site
    Athens, 115 27, Greece
  • Novartis Investigative Site
    Ioannina, 455 00, Greece
  • Novartis Investigative Site
    Pátrai, 265 04, Greece
  • Novartis Investigative Site
    Thessaloniki, 570 10, Greece
  • Novartis Investigative Site
    Budapest, 1083, Hungary
  • Novartis Investigative Site
    Budapest, 1097, Hungary
  • Novartis Investigative Site
    Eger, 3300, Hungary
  • Novartis Investigative Site
    Ahmedabad, Gujarat 380009, India
  • Novartis Investigative Site
    New Delhi, National Capital Territory of Delhi 110029, India
  • Novartis Investigative Site
    Chennai, Tamil Nadu 600036, India
  • Novartis Investigative Site
    Varanasi, Uttar Pradesh 221010, India
  • Novartis Investigative Site
    Rishikesh, Uttarakhand 249203, India
  • Novartis Investigative Site
    Meldola, FC 47014, Italy
  • Novartis Investigative Site
    Milan, MI 20162, Italy
  • Novartis Investigative Site
    Pisa, PI 56126, Italy
  • Novartis Investigative Site
    Roma, RM 00144, Italy
  • Novartis Investigative Site
    Torino, TO 10126, Italy
  • Novartis Investigative Site
    Amman, 11941, Jordan
  • Novartis Investigative Site
    Alor Star, Kedah 05460, Malaysia
  • Novartis Investigative Site
    Kuching, Sarawak 93586, Malaysia
  • Novartis Investigative Site
    Petaling Jaya, Selangor 46150, Malaysia
  • Novartis Investigative Site
    Kuala Lumpur, 59100, Malaysia
  • Novartis Investigative Site
    Dordrecht, South Holland 3318 AT, Netherlands
  • Novartis Investigative Site
    Khoudh, 123, Oman
  • Novartis Investigative Site
    Cluj-Napoca, Cluj 400015, Romania
  • Novartis Investigative Site
    Craiova, Dolj 200136, Romania
  • Novartis Investigative Site
    Târgu Mureş, Mureș County 540136, Romania
  • Novartis Investigative Site
    Bucharest, 021494, Romania
  • Novartis Investigative Site
    Bucharest, 022328, Romania
  • Novartis Investigative Site
    Bucharest, 030 171, Romania

Showing the first 100 of 119 sites across 24 countries. Choose a country and city above to see the rest.

09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: 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

Data sharing details ↗ · www.clinicalstudydatarequest.com

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Nov 2022 to primary completion in May 2025, 29 months.

Results were first posted in May 2026, 1 year after primary completion.

Of 24 phase 3 interventional studies under Leukemia, Myelogenous, Chronic, BCR-ABL Positive, half reached primary completion within 38 months of starting (the median), counting those still running; a quarter within 30 and three quarters within 79. This study's 29 months is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 11, 2022
First posted
Jul 13, 2022
StartActual
Nov 21, 2022
Primary completionActual
May 15, 2025
CompletionEst.
Jul 7, 2031
Results first posted
May 27, 2026
Last update
Aug 26, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 26, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT05456191
Responsible party
Sponsor
First posted
Jul 13, 2022
Start date
Nov 21, 2022
Primary completion
May 15, 2025
Completion
Jul 7, 2031 (estimated)
Results posted
May 27, 2026
Last update
Aug 26, 2026

Study contacts

Novartis Pharmaceuticals
study director · Novartis Pharmaceuticals

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Asciminib

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