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CompletedNCT05286528Updated Oct 27, 2023Results posted

Study to Evaluate Chronic Myeloid Leukemia Treatment Landscape and Real-life Treatment Outcomes in Hungary: Analysis of National Health Insurance Fund Database

An observational study in Chronic Myeloid Leukaemia, sponsored by Pfizer. Completed at 1 site in Hungary. Per ClinicalTrials.gov, last updated 2023-10-27.

Sponsored by Pfizer · Observational

Study type
Observational
Model
Other
Time perspective
Retrospective
Enrollment
1,484
Sex
All
01

Study summary

The objectives of this study are to describe patient demographics, clinical and disease characteristics and treatment patterns of Chronic Lymphoid Leukaemia (CML) in Hungary.

The primary endpoint of this study is the overall survival of CML patients treated with tyrosine kinase inhibitors in Hungary. The Overall Survival (OS) of all enrolled patients, OS by sequence pattern and by the number of treatment lines will be analyzed.

Secondary objectives are description of the treatment length in 1st and later lines, incidence and prevalence of CML, the patient demographics (as age, gender, comorbidities), average number of patients' comorbidities, most frequent comorbidities and patient number with comorbidities at baseline and at different treatment lines by investigated Thyrosine Kinase Inhibitor (TKI), distribution of the investigated TKI therapies by treatment lines

02

Conditions studied

  • Chronic Myeloid Leukaemia

Keywords

  • tyrosine kinase inhibitor (TKI)
03

In context

Leukemia

5,441 studies on the registry are indexed under Leukemia; 636 are open to participants now.

This study's enrollment of 1,484 is above the median of 120 across 744 observational studies indexed under Leukemia.

Browse Leukemia studies →

Lead sponsor

Pfizer is the lead sponsor of 3,244 studies on the registry; 139 are open to participants now.

Of its 582 completed or terminated interventional studies of FDA-regulated products, 381 (65%) have results posted.

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

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Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

All CML patients treated with any TKI with CML diagnosis based on the International Classification of Diseases - 10th revision (ICD) during the investigated timeframe

Inclusion criteria

  • Female and male patients diagnosed with chronic myeloid leukemia
  • Patients receiving tyrosine kinase inhibitor therapy under the terms of the current marketing authorization

Exclusion criteria

Exclusion Criteria:

  • Patients receiving TKI for non-CML diagnoses
05

Study design

Observational model
Other
Time perspective
Retrospective
Enrollment
1,484 participants (actual)
Patient registry
No

Interventions

  • DrugBosutinib

    Bosutinib as prescribed in real world

  • DrugImatinib

    Imatinib as prescribed in real world

  • DrugNilotinib

    Nilotinib as prescribed in real world

  • DrugDasatinib

    Dasatinib as prescribed in real world

  • DrugPonatinib

    Ponatinib as prescribed in real world

06

What researchers measure

Primary outcomes

  1. Overall Survival Rate: All Participants

    Overall survival rate in this study was defined as percentage of participants alive during analysis period of 01-January-2011 till 30-June-2020. 5 years overall survival rate was demonstrated with Kaplan-Meier curve.

    Time frame: 5 years, during analysis period from 01-January-2011 till 30-June-2020 (retrieved data assessed in this observational study for approximately 1.2 years)

  2. Overall Survival Rate: Type of First Line TKI

    Overall survival rate in this study was defined as percentage of participants alive during analysis period of 01-January-2011 till 30-June-2020. 5 years overall survival rate was demonstrated with Kaplan-Meier curve.

    Time frame: 5 years, during analysis period from 01-January-2011 till 30-June-2020 (retrieved data assessed in this observational study for approximately 1.2 years)

  3. Overall Survival Rate: Type of Second Line TKI

    Overall survival rate in this study was defined as percentage of participants alive during analysis period of 01-January-2011 till 30-June-2020. 5 years overall survival rate was demonstrated with Kaplan-Meier curve.

    Time frame: 5 years, during analysis period from 01-January-2011 till 30-June-2020 (retrieved data assessed in this observational study for approximately 1.2 years)

  4. Overall Survival Rate: Per Sequence of Treatment

    Overall survival rate in this study was defined as percentage of participants alive during analysis period of 01-January-2011 till 30-June-2020. 5 years overall survival rate was demonstrated with Kaplan-Meier curve.

    Time frame: 5 years, during analysis period from 01-January-2011 till 30-June-2020 (retrieved data assessed in this observational study for approximately 1.2 years)

07

Results

Posted Oct 27, 2023

Participant flow

Data of participants, who received tyrosine kinase inhibitors (imatinib, dasatinib, nilotinib, bosutinib, or ponatinib) anytime from 01 January 2009 to 30 June 2020, under the terms of the current marketing authorization, inclusion criteria, for treatment of chronic myeloid leukemia (CML), was retrieved from database National Health Insurance Fund (NHIF) of Hungary.

Participant flow — Overall Study
MilestoneParticipants With CML
Started1484
Completed1484
Not completed0

Outcome measures

PrimaryOverall Survival Rate: All Participants

Overall survival rate in this study was defined as percentage of participants alive during analysis period of 01-January-2011 till 30-June-2020. 5 years overall survival rate was demonstrated with Kaplan-Meier curve.

Time frame:
5 years, during analysis period from 01-January-2011 till 30-June-2020 (retrieved data assessed in this observational study for approximately 1.2 years)
Reported as:
Number · Percentage of participants
Overall Survival Rate: All Participants
Percentage of participantsParticipants With CML
Overall Survival Rate: All Participants77.1
PrimaryOverall Survival Rate: Type of First Line TKI

Overall survival rate in this study was defined as percentage of participants alive during analysis period of 01-January-2011 till 30-June-2020. 5 years overall survival rate was demonstrated with Kaplan-Meier curve.

Time frame:
5 years, during analysis period from 01-January-2011 till 30-June-2020 (retrieved data assessed in this observational study for approximately 1.2 years)
Reported as:
Number · Percentage of participants
Overall Survival Rate: Type of First Line TKI
Percentage of participantsParticipants With CML
Overall Survival Rate: Type of First Line TKI77.1
PrimaryOverall Survival Rate: Type of Second Line TKI

Overall survival rate in this study was defined as percentage of participants alive during analysis period of 01-January-2011 till 30-June-2020. 5 years overall survival rate was demonstrated with Kaplan-Meier curve.

Time frame:
5 years, during analysis period from 01-January-2011 till 30-June-2020 (retrieved data assessed in this observational study for approximately 1.2 years)
Reported as:
Number · Percentage of participants
Overall Survival Rate: Type of Second Line TKI
Percentage of participantsParticipants With CML
Overall Survival Rate: Type of Second Line TKI71.5
PrimaryOverall Survival Rate: Per Sequence of Treatment

Overall survival rate in this study was defined as percentage of participants alive during analysis period of 01-January-2011 till 30-June-2020. 5 years overall survival rate was demonstrated with Kaplan-Meier curve.

Time frame:
5 years, during analysis period from 01-January-2011 till 30-June-2020 (retrieved data assessed in this observational study for approximately 1.2 years)

No measurements were reported for this outcome.

Adverse events

Collected over Not applicable as adverse events were not collected for the study. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Participants With CML———

Baseline characteristics

Analysis set included all participants treated with tyrosine kinase inhibitors based on chronic myeloid leukemia diagnosis between 01 January 2009 to 30 June 2020.

Age, Continuous
Age, Continuous(Years)Participants With CML
Mean56.14 ± 17.13
Sex: Female, Male
Sex: Female, Male(Participants)Participants With CML
Female704
Male780
Race and Ethnicity Not Collected
Race and Ethnicity Not Collected(Participants)Participants With CML
08

Study locations

1 site
  • Pfizer
    Budapest, Hungary
09

References and documents

Study documents

  • Protocol and statistical analysis plan · Nov 16, 2020

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No — Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 27, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT05286528
Lead sponsor
Pfizer
Responsible party
Sponsor
First posted
Mar 18, 2022
Start date
Nov 18, 2020
Primary completion
Jan 31, 2022
Completion
Jan 31, 2022
Results posted
Oct 27, 2023
Last update
Oct 27, 2023

Study contacts

Pfizer CT.gov Call Center
study director · Pfizer
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2023. You cannot join it, but the record below documents what was studied.

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