Economic Analysis of Early vs Delayed Therapy in Newly Diagnosed Asymptomatic High-Risk Patients With Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma:

NCT05371808 | Recruiting

• 1 other identifier: CLC3E
• Study Type: observational
• Target: 247
• Locations: 1 country
• Sites: 6

Brief Summary

Utilization data will be collected from all patients entered on the trial at Canadian centres from the time of registration until death, removal from study, or completion of 10 years of follow-up. Protocol-specified health care utilization will be collected within trial case report forms, and will include study visits, radiographic assessments, laboratory investigations, and treatment administration. Resource utilization data collection will be supplemented by a self-administered resource utilization form (Stanford SMRC) to document non-protocol specified utilization. This will include hospitalizations (including days in hospital), emergency room visits, and non-protocol specified ambulatory visits.

Conditions

Chronic Lymphocytic Leukemia; Small Lymphocytic Lymphoma

Outcome Measures

Primary Outcomes (1)

• To determine incremental cost-utility ratio of an early novel therapy approach compared to a deferred approach in Canadian patients with high-risk CLL (enrolled in the randomized component of the SWOG S1925/CLC3 study).

  Direct medical costs will be estimated from the perspective of the Canadian public healthcare system. The denominator of the ratio will be expressed in quality-adjusted life years gained.

  10 years

Secondary Outcomes (5)

• To determine incremental cost-effectiveness ratio of an early novel therapy approach compared to a deferred approach in Canadian patients with high-risk CLL . Effectiveness will be expressed in life years gained

  10 years

• To determine the incremental cost-effectiveness ratio of an early novel therapy approach compared to a deferred approach in Canadian patients with high-risk CLL. Effectiveness will be expressed in years prior to second progression gained.

  10 years

• To determine the direct medical costs associated with the care of Canadian high-risk CLL patients randomized to an early treatment approach compared to a deferred approach.

  10 years

• To compare the change in health preference (utility) over time for individuals with high-risk CLL randomized to an early approach vs. deferred treatment approach

  10 years

• To compare the lost productivity for Canadian individuals with high-risk CLL randomized to an early treatment approach compared to a deferred approach

  10 years

Interventions

Work Productivity and Daily Activity Impairment (WPAI) survey OTHER

The questionnaire includes three open-ended questions that determines: 1) hours absent from work due to health problems; 2) hours absent from work due to other reasons; and (3) hours actually worked over the past 30 days. Additional questions ask about the impact of health problems on work productivity and daily activities and are scored along a vertical visual analog scale. The WPAI provides estimates on absenteeism, presenteeism, global measures of lost productivity (absenteeism+presenteeism) and daily activity impairment (impaired ability to perform non-work activities including work around the house, child care, exercise, studying, and leisure activities)

EQ-5D-5L Instrument OTHER

This instrument is a measure of health status for use in evaluating health and healthcare.

Resource Utilization Form (SMRC) OTHER

Resource utilization data collection will be supplemented by a self-administered resource utilization form (Stanford SMRC) to document non-protocol specified utilization. This will include hospitalizations (including days in hospital), emergency room visits, and non-protocol specified ambulatory visits.

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Probability Sample

Study Population

All Canadian patients who are eligible for the core protocol CLC3/S1925 will be mandated to participate in the companion study CLC.3E. This study is designed to include women and minorities as appropriate, but is not designed to measure differences in intervention effects.

You may qualify if:

• Patient must be eligible for the core CLC3/S1925 protocol.
• Patient consent must be appropriately obtained in accordance with applicable local and regulatory requirements. Each patient must sign a consent form prior to enrollment in the trial to document their willingness to participate.
• Patient is able (i.e. sufficiently fluent) and willing to complete the quality of life and/or health utility questionnaires in either English or French. The baseline assessment must be completed within required timelines, prior to enrollment. Inability (lack of comprehension in English or French, or other equivalent reason such as cognitive issues or lack of competency) to complete the questionnaires will not make the patient ineligible for the study. However, ability but unwillingness to complete the questionnaires will make the patient ineligible.
• Patients must be accessible for treatment and follow-up. Investigators must assure themselves the patients enrolled on this trial will be available for complete documentation of the treatment, adverse events, and follow-up.

Sponsors & Collaborators

• Canadian Cancer Trials Group: lead
• Canadian Institutes of Health Research (CIHR): collaborator

Study Sites (6)

BCCA - Vancouver

Vancouver, British Columbia, V5Z 4E6, Canada

RECRUITING

CancerCare Manitoba

Winnipeg, Manitoba, R3E 0V9, Canada

RECRUITING

Regional Health Authority B, Zone 2

Saint John, New Brunswick, E2L 4L2, Canada

RECRUITING

Lakeridge Health Oshawa

Oshawa, Ontario, L1G 2B9, Canada

NOT YET RECRUITING

Ottawa Hospital Research Institute

Ottawa, Ontario, K1H 8L6, Canada

RECRUITING

The Jewish General Hospital

Montreal, Quebec, H3T 1E2, Canada

RECRUITING

MeSH Terms

Conditions

Leukemia, Lymphocytic, Chronic, B-Cell

Interventions

Surveys and Questionnaires

Condition Hierarchy (Ancestors)

Leukemia, B-Cell; Leukemia, Lymphoid; Leukemia; Neoplasms by Histologic Type; Neoplasms; Hematologic Diseases; Hemic and Lymphatic Diseases; Lymphoproliferative Disorders; Lymphatic Diseases; Immunoproliferative Disorders; Immune System Diseases; Chronic Disease; Disease Attributes; Pathologic Processes; Pathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Data Collection; Epidemiologic Methods; Investigative Techniques; Health Care Evaluation Mechanisms; Quality of Health Care; Health Care Quality, Access, and Evaluation; Public Health; Environment and Public Health

Study Officials

• Matthew Cheung

  Odette Cancer Centre, Sunnybrook Helath Sciences Centre, Toronto, Ontario, Canada

  STUDY CHAIR

Central Study Contacts

Annette Hay

CONTACT

613-533-6430; ahay@ctg.queensu.ca

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Sponsor Type: NETWORK
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: May 9, 2022
• First Posted: May 12, 2022
• Study Start: January 27, 2023
• Primary Completion (Estimated): October 1, 2028
• Study Completion (Estimated): October 1, 2028
• Last Updated: July 14, 2026

Record last verified: 2026-05

Data Sharing

• IPD Sharing: Will not share

Locations

CA (6)