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Study to Understand Clinical Characteristics, Treatment Pathway in Chronic Lymphocytic Leukemia

CREEK is a Multicenter Retrospective Study to Understand the Clinical Characteristics, Treatment Pathway and Resource Utilization for Patients With Chronic Lymphocytic Leukemia in International Region.

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04964908
Acronym
CREEK
Enrollment
1088
Registered
2021-07-16
Start date
2021-12-03
Completion date
2023-08-31
Last updated
2024-02-20

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

Conditions

Chronic Lymphocytic Leukemia

Keywords

Chronic lymphocytic leukemia, CLL

Brief summary

A Multicenter Retrospective Study to understand the clinical characteristics, treatment pathway and resource utilization for patients with chronic lymphocytic leukemia A retrospective, multi-centre, observational study to describe disease characteristics, treatment patterns, treatment-related outcomes, and resource utilization for Chronic Lymphocytic Leukemia (CLL) patients in multiple international regions

Detailed description

CREEK is a retrospective, observational, registry-based study including patients with an incidental diagnosis of CLL and started treatment (1st line, 2nd line, or Subsequent lines of treatment) within the period between 01 June 2016 and 12 months before data collection as identified from the patient records (from participating hospitals across the GCC States and the International region countries) with at least 12 months of follow-up, after starting on treatment. Moreover, the study will include a pilot cohort in the GCC as an exploratory objective to describe the clinical and patient characteristics for the treatment-naive CLL patient

Interventions

None listed

Sponsors

AstraZeneca
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

* Primary diagnosis of Chronic Lymphocytic Leukemia (CLL) * Initiated CLL treatment (including 1st line, 2nd line, or Subsequent lines of treatment) within the period between 01 June 2016, and 12 months before data collection \- For GCC pilot cohort patients: treatment-naive CLL patients diagnosed between 01 June 2016, and 12 months before data collection. * Available medical records at the participating site reflecting at least 12 months of follow-up after starting on treatment (except in the case of the participant death within one year following treatment initiation). * Provision of informed consent by the patient or next of kin/legal representative (for deceased patients at study entry, unless a waiver was granted), according to local regulations. * Adult male or female ≥18 years old at the time of diagnosis or according to the age of majority as defined by local regulations).

Exclusion criteria

* Failure to meet one or more of the inclusion criteria. * Any diagnosis of B-cell malignancies other than CLL. * Current or prior use of acalabrutinib treatment. * Currently/previously receiving treatment in an interventional clinical trial at the time of entry into this study for indications CLL.

Design outcomes

Primary

MeasureTime frameDescription
To describe disease Characteristics5 YearsTo describe Staging of disease, Prognosis, Cytogenetics abnormalities and Immunogenetic analysis * Date of diagnosis * Staging of disease
To describe the clinical characteristics for with chronic lymphocytic leukemia (CLL) patients5 yearTo describe the clinical characteristics for with chronic lymphocytic leukemia (CLL) patients, recording the patient characteristic: \- Demographics: (Age, gender, race, nationality, Performance status, Tobacco use, Family history of malignancies)
Calculation of Epidemiological Measure(s) of Interest5 yearsCalculation of Epidemiological Measure(s) of Interest e.g., descriptive statistics, hazard ratios, incidence rates, test/retest reliability)

Secondary

MeasureTime frameDescription
Subsequent lines of therapies5 YearsType of regimen (CIT or targeted therapies) and specific regimens or drugs * Number of cycles * Duration of treatment * Pattern of response at the end of the treatment
Recording the treatment patterns5 yearsPercentage of patients who received immediate therapy and median time of observation, Number of prior lines of treatment received.
Calculation of Epidemiological Measure(s) of Interest5 Years* First Treatment received: * Number of prior lines of treatment received

Other

MeasureTime frameDescription
Recording the treatment-related outcomes5 yearsAssessment of best response followed the IWCLL 2018 guidelines based on clinical description and biochemistry,

Countries

Argentina, Brazil, Chile, Colombia, Costa Rica, Dominican Republic, Egypt, India, Kuwait, Malaysia, Mexico, Panama, Saudi Arabia, Singapore, Taiwan, Turkey (Türkiye), United Arab Emirates

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026