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Exosomal and Free Extracellular RNAs and Proteins as Predictive Biomarkers for HER2 Therapies in Breast Cancer

Exosomal and Free Extracellular RNAs and Proteins as Predictive Biomarkers for HER2 Therapies in Breast Cancer

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT01840306
Enrollment
330
Registered
2013-04-25
Start date
2012-10-12
Completion date
2023-05-24
Last updated
2025-07-08

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

Conditions

Breast Cancer, HER2 Positive Breast Cancer, HER2 Negative Breast Cancer

Brief summary

Primary Objective: (i) To identify panels of RNAs and proteins predictive of response to HER2 targeted agents, considering clinical responses. (ii) To investigate associations between presence vs. absence (or relative levels) of identified extracellular (EC) RNAs/proteins and patients' clinicopathological characteristics, including age at diagnosis, time to progression and overall survival, as well as correlations with serum protein biomarkers routinely analysed for these patients. (iii) To compare HER2 positive samples versus HER2 negative samples for the existence of RNAs/proteins identified in (i) and (ii). Secondary Objective: To develop a predictive model for use in the HER2 positive population based on the most accurate and sensitive combination of the identified biomarkers.

Detailed description

This is a translational pilot study, involving two patient cohorts, designed to identify predictive biomarkers for HER2 targeted therapy, which will be validated in a larger future study. Cohort 1: 300 newly diagnosed (including metastatic) HER2 positive breast cancer patients. Cohort 2: 30 newly diagnosed HER2 negative breast cancer patients. Blood specimens will be taken: * before starting treatment (cohort 1 and 2) * after receiving chemotherapy and before starting HER2 targeted treatment (if applicable) (cohort 1) * within one month following 1st treatment of HER2 targeted treatment (cohort 1) * approximately every 3 months (coinciding with formal disease assessment) while on HER2 targeted treatment for a maximum of 5 years (cohort 1) Blood will be processed to serum, which will be analysed for RNA and protein biomarkers.

Interventions

Sponsors

Cancer Trials Ireland
Lead SponsorNETWORK

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

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

Inclusion criteria

1. Patient with a newly diagnosed (including metastatic) HER2 positive breast cancer, who is to commence HER2 targeted treatment. OR \- Patient with a newly diagnosed HER2 negative breast cancer, who is to commence any type of treatment. 2. Patient must be female and aged 18 years or over. 3. Patient must provide written informed consent.

Exclusion criteria

1\. Patients who do not fulfil the inclusion criteria mentioned above

Design outcomes

Primary

MeasureTime frameDescription
Identification of Extra Cellular RNAs/proteins in sera from cancer patients7 yearsIdentification of EC RNAs/proteins in sera from cancer patients, which correlate with their response to treatment

Countries

Ireland

Outcome results

None listed

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