A Study to Assess Change in Patient Experience in Adult Participants With Chronic Lymphocytic Leukemia (CLL) Receiving Oral Venetoclax Tablets + Intravenous Rituximab or Bruton's Tyrosine Kinase Inhibitors Tablets in the United Kingdom

Chronic lymphocytic leukemia (CLL), a form of Non-Hodgkin's Lymphoma, is the most common type of leukemia in adults, affecting approximately 3,800 people in the UK each year. This study will evaluate the patient experience of CLL in adult participants who are prescribed venetoclax+rituximab or Bruton's tyrosine kinase inhibitors in the United Kingdom (UK).

Venetoclax+rituximab is a drug approved to treat CLL. Study participants will receive venetoclax+rituximab as prescribed by their study doctor in accordance with approved local label. Adult participants prescribed venetoclax+rituximab or Bruton's tyrosine kinase inhibitors will be enrolled. Around 140 participants will be enrolled in the study in approximately 10 sites in the UK.

Participants will receive venetoclax tablets to be taken by mouth and rituximab intravenous (IV) injection according to the approved local label.

There is expected to be no additional burden for participants in this trial. All study visits will occur during routine clinical practice.

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Key information

Conditions

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

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Barts Health NHS Trust /ID# 252717, London, London, City of, United Kingdom

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Has a confirmed diagnosis of chronic lymphocytic leukemia (CLL) (as defined by 2008 Modified International Workshop for Chronic Lymphocytic Leukemia National Cancer Institute Working Group (IWCLL NCI-WG) Guidelines).
Has relapsed/refractory (R/R) disease having received only 1 prior line of treatment, which must have been a chemotherapy or chemoimmunotherapy treatment.
Has treatment experience with venetoclax+rituximab (Ven+R) or bruton's tyrosine kinase inhibitor (BTKi)s that meets the criteria for inclusion described in the protocol, for which recruitment targets have not yet been met.

Exclusion criteria

Previously treated with a BTKi, a BCL-2 inhibitor or other investigational agents.
Has any other medical condition or disorder that, in the opinion of the site investigator or study director, could compromise participant's ability to give written informed consent and/or prevent or interfere with his or her ability to comply with study procedures and provide meaningful information about his or her CLL experience.

Treatment and study plan

Primary outcomes

Number of Participants with a Change in Chronic Lymphocytic Leukemia (CLL) Symptoms

Time frame: Day 1

Number of participants who report a change in CLL symptoms through qualitative interviews.

Sponsors and collaborators

Lead sponsor

AbbVie

Industry

Registry information

Official study title

Qualitative, Cross-sectional Observational Study Exploring the Experience of Patients Prescribed Venetoclax+Rituximab or Bruton's Tyrosine Kinase Inhibitors for Chronic Lymphocytic Leukaemia in Clinical Practice in the UK

Acronym: ELECTRIC

Important dates

Study start: 2022
Primary completion: 2024
Study completion: 2024
First posted: Sep 27, 2022
Registry last updated: Jun 29, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

Completed