Skip to content

PRIMROSE CSF - Cerebrospinal Fluid Collection in Breast Cancer

PRIMROSE CSF Study: A prospective study of the genomic landscape of central nervous system disease secondary to breast cancer utilising cell-free DNA derived from cerebrospinal fluid (CSF).

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN13865526
Enrollment
67
Registered
2021-03-30
Start date
2021-06-01
Completion date
Unknown
Last updated
2024-03-18

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

Conditions

Breast Cancer Cancer Malignant neoplasm of breast

Interventions

Data Collection: Most of the data should be collected retrospectively sourced from medical records and patient medical notes (Data will be collected on Demographic Information, Clinico-pathological in

Sponsors

University of Liverpool
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Male or female 2. >=16 years of age 3. Any ER, PgR or HER2 status 4. Newly diagnosed with BCBM OR Progressive BCBM following either local or systemic treatment OR Leptomeningeal disease 5. Informed Consent

Exclusion criteria

Exclusion criteria: 1. Unable to comply with study procedures or give informed consent 2. Where the investigator considers it unsafe to undertake a lumbar puncture or perform an aspiration from the Ommaya reservoir 3. Where the investigator considers it not in the best interest of the patient to participate

Design outcomes

Primary

MeasureTime frame
Feasibility outcomes: 1. RECRUITMENT 1.1. Recruitment rate: defined as the total number of patients randomised per month measured using populated REDCAP eCRFs 1.2. Site opening: defined as the time take to open the target number of sites measured using LCTC Portal 2. STUDY PROTOCOL 2.1. Patient adherence to protocol: to determine whether the patient and/or caregivers adhere to the conditions of the protocol, measured via the number of minor or major protocol deviations measured using ... 2.2. Review of the practicality of delivering interventions measured using Monitoring Reports and discussions held at TMG 3. SAMPLE SIZE INFORMATION 3.1. The estimation of quantities required for an accurate sample size calculation, such as the standard deviation of the outcome measure 4. DATA COLLECTION 4.1. The proportion of expected CRFs returned and the rate of missing key data items 5. PATIENT ACCEPTABILITY 5.1. Estimate drop-out rates: We are not anticipating any patient drop-outs 5.2. Participation rates measured as a proportion of those patients recruited

Secondary

MeasureTime frame
1. Actionable mutations found in CSF cfDNA that match a specific gene database, namely TARGET (Tumour Alterations Relevant to Genomics Driven Therapy) gene database measured using genome analysis after all samples have been collected 2. Complications post lumbar puncture or aspiration of CSF from an Ommaya reservoir measured using a patient questionnaire and a clinician questionnaire post-procedure (eCRF will be used to record the date, the ease of the procedure complications and the need for intravenous fluid and/or analgesia)

Countries

England, Scotland, United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026