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Retrospective Observational Research Study to Describe the Real World Use of Bosutinib in a Single Centre in Scotland

A Retrospective Observational Research Study to Describe the Real World Use of Bosutinib in a Single Centre in Scotland

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05363488
Enrollment
17
Registered
2022-05-06
Start date
2019-05-01
Completion date
2019-11-01
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Myeloid Leukemia

Keywords

Philadelphia chromosome, Breakpoint Cluster Region/ Abelson (BCR/ABL1), retrospective, observational, chromic myeloid leukemia

Brief summary

This study will describe the efficacy and safety of bosutinib in patients with chronic myeloid leukaemia (CML) used in a real world clinical practice setting.

Interventions

DRUGBosutinib

Patients receiving bosutinib treatment

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients with a diagnosis of Ph+ CML aged ≥18 years at bosutinib initiation. * Patients prescribed bosutinib (irrespective of the phase of their disease) EITHER in normal clinical practice since it received marketing authorisation (27 March 2013) by the EMA OR via the compassionate use programme prior to marketing authorization. * Where required, evidence of a personally signed and dated informed consent document indicating that the patient (or a legally acceptable representative) has been informed of all pertinent aspects of the study.

Exclusion criteria

* Patients prescribed bosutinib as part of an interventional clinical trial programme. * Patients initiated on bosutinib less than 3 months prior to data collection taking place. * Patients prescribed bosutinib as exclusively post-allograft therapy.

Design outcomes

Primary

MeasureTime frame
Cumulative response rate in partial and complete haematological response (PHR/CHR)16 May 2019 through 30 Nov 2019
Cumulative response rate for partial and complete cytogenetic outcomes (PCyR/CCyR)16 May 2019 through 30 Nov 2019
Cumulative response rate for molecular response (MR) outcome16 May 2019 through 30 Nov 2019

Secondary

MeasureTime frameDescription
Proportion of patients with Philadelphia chromosome positive (Ph+) CML in chronic phase (CP), accelerated phase (AP) or blast crisis (BC) presenting with adverse events (AEs) considered related to bosutinib16 May 2019 through 30 Nov 2019AEs related to Bosutinib defined by investigator and by will be described overall (all grades of severity combined, all types of events combined) and according to grade (1,2,3 and 4 and grade 3 / 4) and by type of event
Progression-free survivalFrom initiation of bosutinib to 1 year, 2 year, and 3 yearProgression will be defined as change from chronic to accelerated phase or to blast crisis.
Overall survivalFrom initiation of bosutinib treatment to date of death up to 30 Nov 2019Overall survival will be defined as the duration between initiation of bosutinib and date of death (all causes combined) (Kaplan Meier method)death (all causes combined) (Kaplan Meier method)
The proportion of patients converting to AP/BC16 May 2019 through 30 Nov 2019
Proportion of patients who permanently discontinued treatment with bosutinib following an AE considered as related to bosutinib16 May 2019 through 30 Nov 2019
Rate of cross-intolerance between bosutinib and previously prescribed tyrosine kinase inhibitors (TKIs)16 May 2019 through 30 Nov 2019Cross-intolerance will be defined as the number of patients who permanently discontinued bosutinib because of an AE which resulted in discontinuation of a previous treatment (imatinib, dasatinib, nilotinib). Cross-intolerance will be estimated for all AEs, but also by type of AEs.
Mean dosage prescribed at time of initiation and mean dosage during treatment16 May 2019 through 30 Nov 2019
Proportion of patients with an increase or reduction in dose16 May 2019 through 30 Nov 2019
Mean and relative dose intensity16 May 2019 through 30 Nov 2019Defined as result of ratio of dose received over expected dose.
Proportion of patients who temporarily discontinued treatment16 May 2019 through 30 Nov 2019
Proportion of patients who permanently discontinued16 May 2019 through 30 Nov 2019
Duration of treatment16 May 2019 through 30 Nov 2019Duration of initiation up to end of treatment will be calculated for all causes of discontinuation combined and according to cause for discontinuation.
Describe the reason for selection of bosutinib in second line CML setting16 May 2019 through 30 Nov 2019Clinician reason given for selecting Bosutinib therapy

Countries

United Kingdom

Contacts

STUDY_DIRECTORPfizer CT.gov Call Center

Pfizer

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 30, 2026