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CompletedNCT07151820Updated Sep 3, 2025

A Real-world Study About the Impact of Adverse Events (AEs) on Treatment Adjustments, Healthcare Resource Use, and Costs Among Chronic Myeloid Leukemia Patients

An observational study in Leukemia, Chronic Myeloid, sponsored by Novartis Pharmaceuticals. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-09-03.

Sponsored by Novartis Pharmaceuticals · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
2,546
Ages
18 Years and older
Sex
All
01

Study summary

The aim of this study was to assess the frequency of adverse events (AEs) experienced by chronic myeloid leukemia (CML) patients treated with tyrosine kinase inhibitors (TKIs) and evaluate their impact on treatment adjustments as well as the burden of AEs on healthcare resource use (HRU) and costs.

This study used real-world administrative claims data from the PharMetrics Plus database. AEs of interest were selected based on information obtained from the National Comprehensive Cancer Network (NCCN) Clinical Practice Guidelines, Chronic Myeloid Leukemia Version 1. 2024 and clinical inputs. Given the nature of claims data, only AEs of interest that required medical attention (i.e., resulted in a claim record) were captured in this study.

02

Conditions studied

  • Leukemia, Chronic Myeloid

Keywords

  • Tyrosine kinase inhibitor
  • Adverse events
  • Treatment adjustment
  • Healthcare resource use
  • Healthcare costs
03

In context

Leukemia, Myelogenous, Chronic, BCR-ABL Positive

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

This study's enrollment of 2,546 is above the median of 141 across 149 observational studies indexed under Leukemia, Myelogenous, Chronic, BCR-ABL Positive.

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

Lead sponsor

Novartis Pharmaceuticals is the lead sponsor of 2,673 studies on the registry; 228 are open to participants now.

Of its 576 completed or terminated interventional studies of FDA-regulated products, 431 (75%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

This was a retrospective, noninterventional cohort study.

Inclusion criteria

Patients who met all of the following criteria were considered for inclusion:

  • Had at least two diagnoses for CML- International Classification of Disease, 10th revision, Clinical Modification (ICD-10-CM) code: C92.1x
  • Aged 18 years or older at the time of first CML diagnosis
  • Received a 1G or 2G TKI after the first CML diagnosis
  • Had continuous health plan enrollment (pharmacy and medical benefits) for at least 6 months before the index date (baseline) and 6 months after the index date

Exclusion criteria

Exclusion criteria:

Patients who met any of the following criteria were excluded:

  • Patients had 2 or more diagnoses of gastrointestinal stromal tumor ([GIST], ICD-10: C49.Ax) or chronic myelomonocytic leukemia ([CMML], ICD-10: C93.1x) at any time
  • Patients had a hematopoietic stem cell transplantation (HSCT) during the baseline period
  • Patients had CML-related chemotherapy treatment for accelerated phase (AP)/blast crisis (BC) during the baseline period
  • Patients had medical claims associated with a clinical trial during the baseline period up to the end of the observation period
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Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
2,546 participants (actual)
Patient registry
No

Groups and cohorts

  • First Generation (1G) TKI Cohort

    Adult CML patients who received imatinib, a 1G TKI.

  • Second Generation (2G) TKI Cohort

    Adult CML patients who received the following 2G TKIs: dasatinib, nilotinib, or bosutinib.

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What researchers measure

Primary outcomes

  1. Number of Patients With AEs of Interest During the Study Period Among Those Without the Specific Event During the Baseline Period

    The Study Period spanned from treatment initiation until treatment discontinuation, one day before treatment switch to another CML treatment, end of data availability, end of health plan coverage, or death, whichever came first.

    Time frame: Up to approximately 7 years and 3 months

  2. Number of Patients With AEs of Interest Among All Patients During the Study Period

    The Study Period spanned from treatment initiation until treatment discontinuation, one day before treatment switch to another CML treatment, end of data availability, end of health plan coverage, or death, whichever came first.

    Time frame: Up to approximately 7 years and 3 months

Secondary outcomes

  1. Number of Patients With Treatment Adjustments During the Observation Period

    The Observation Period spanned from treatment initiation to the end of data availability, end of health plan coverage, or death, whichever occurred first. Treatment adjustments included: * Treatment discontinuation * Treatment interruption * Switching treatment * Dose reduction

    Time frame: Up to approximately 7 years and 3 months

  2. Duration of First Treatment Interruption

    Time frame: Up to approximately 7 years and 3 months

  3. Time From TKI Initiation to Treatment Adjustment

    Treatment adjustments included: * Treatment discontinuation * Treatment interruption * Switching treatment * Dose reduction

    Time frame: Up to approximately 7 years and 3 months

  4. Number of Patients With AEs of Interest Within 30 Days Before Treatment Adjustment

    Treatment adjustments included: * Treatment discontinuation * Treatment interruption * Dose reduction

    Time frame: 6 months

  5. Number of AEs of Interest Within 30 Days Before Treatment Adjustment

    Treatment adjustments included: * Treatment discontinuation * Treatment interruption * Dose reduction

    Time frame: 6 months

  6. Number of Patients by AE of Interest Experienced Within 30 Days Before Treatment Adjustment

    Treatment adjustments included: * Treatment discontinuation * Treatment interruption * Dose reduction

    Time frame: 6 months

  7. Time Between the Last AE of Interest and Treatment Adjustment

    Treatment adjustments included: * Treatment discontinuation * Treatment interruption * Dose reduction

    Time frame: 6 months

  8. Number of Patients by Last AE of Interest Experienced Before Treatment Adjustment

    Treatment adjustments included: * Treatment discontinuation * Treatment interruption * Dose reduction

    Time frame: 6 months

  9. Number of All-cause Healthcare Visits Per-Patient-Per-Year (PPPY)

    Healthcare visits included: * Inpatient admissions * Emergency department visits * Outpatient visits * Other visits

    Time frame: 6 months

  10. Number of Patients With One or More All-cause Healthcare Visits

    Healthcare visits included: * Inpatient admissions * Emergency department visits * Outpatient admissions * Other visits

    Time frame: 6 months

  11. Number of All-cause Inpatient Days

    Time frame: 6 months

  12. Number of All-cause Inpatient Days Among Hospitalized Patients

    Time frame: 6 months

  13. All-cause Healthcare Costs PPPY

    Healthcare costs included: * Total costs * Medical costs * Inpatient costs * Emergency department costs * Outpatient costs * Other costs * Pharmacy costs

    Time frame: 6 months

  14. Annual Mean Number of Healthcare Visits Associated With AEs of Interest

    Healthcare visits included: * Inpatient admissions * Emergency department visits * Outpatient admissions * Other visits

    Time frame: 6 months

  15. Annual Mean Costs of Healthcare Visits Associated With AEs of Interest

    Healthcare costs included: * Total costs * Medical costs * Inpatient costs * Emergency department costs * Outpatient costs * Other costs * Pharmacy costs

    Time frame: 6 months

07

Study locations

1 site
  • Novartis
    East Hanover, New Jersey 07936, United States
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 3, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT07151820
Lead sponsor
Novartis Pharmaceuticals
Responsible party
Sponsor
First posted
Sep 3, 2025
Start date
Apr 8, 2024
Primary completion
Oct 22, 2024
Completion
Oct 22, 2024
Last update
Sep 3, 2025

Study contacts

Novartis Pharmaceuticals
study director · Novartis Pharmaceuticals
View the source record on ClinicalTrials.gov ↗

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