NCT06052345

Brief Summary

This is a single center prospective observational cohort study that aims to:

  • examine and identify possible risk and susceptibility factors for the incidence and progression of chemotherapy-induced polyneuropathy (CIPN) in female patients primarily operated for early non-metastatic breast cancer who will receive adjuvant chemotherapy containing paclitaxel
  • test different neurophysiological methods for early detection of CIPN
  • explore changes that underlie the development of CIPN in relation to clinical presentations, neurophysiological assessment, including measures of small nerve fiber dysfunction, and possible biochemical, metabolic and genetic associations
  • explore the effects of CIPN in the patient's lifestyle and quality of life for up to 12 months after the initiation of treatment

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
100

participants targeted

Target at P50-P75 for all trials

Timeline
7mo left

Started Mar 2024

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress79%
Mar 2024Dec 2026

First Submitted

Initial submission to the registry

September 18, 2023

Completed
7 days until next milestone

First Posted

Study publicly available on registry

September 25, 2023

Completed
6 months until next milestone

Study Start

First participant enrolled

March 31, 2024

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2025

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2026

Expected
Last Updated

March 5, 2025

Status Verified

March 1, 2025

Enrollment Period

1.7 years

First QC Date

September 18, 2023

Last Update Submit

March 3, 2025

Conditions

Keywords

Paclitaxel-induced polyneuropathyAntineoplastic AgentsPlant AlkaloidsPaclitaxelAdjuvant Chemotherapy

Outcome Measures

Primary Outcomes (4)

  • Correlation of significant deterioration in neurophysiological parameters including alterations in morphology of small fibers or reduced IENFD (Intraepidermal Nerve Fiber Density) on first follow up visit and development of CIPN

    by performing detailed clinical neurophysiological examination and skin biopsies (where IENFD will be quantified) in different timepoints as described in the study protocol

    1 year

  • Correlation of abnormal laboratory tests in baseline assessment with development/severity of CIPN

    1 year

  • Correlation of parameters of NCS, temperature thresholds, and IENFD at baseline screening with development and severity of CIPN

    1 year

  • Biochemical and metabolic abnormalities prior to paclitaxel treatment and their association with the development of CIPN

    by performing blood tests, genotyping and skin biopsies

    1 year

Secondary Outcomes (4)

  • Calculate and compare the false negative and false positive rate of CIPN in every used method during follow up

    1 year

  • Association of altered scoring in different questionnaires (Fact/GOG-Ntx, SFN-SIQ) and different examinations (UENS) with the presence and severity of CIPN

    1 year

  • Evaluation of whether specific genotypes of breast cancer and higher or lower levels of different proteins are related with higher incidence rate and severity of CIPN

    2 years

  • Study any correspondence between deterioration of QoL indicated by REBECCA monitoring system and standardized patient self-reported measures with diagnosed CIPN after implementation of different methods during follow up

    2 years

Study Arms (2)

CIPN group

Breast cancer patients that developed strong CIPN symptomatology at post-treatment evaluation (4 weeks after the end of therapy)

Device: Garmin smartwatchOther: REBECCA Mobile applicationOther: REBECCA PC plug-in

No-CIPN group

Breast cancer patients that developed mild-to-no CIPN symptomatology at post-treatment evaluation (4 weeks after the end of therapy)

Device: Garmin smartwatchOther: REBECCA Mobile applicationOther: REBECCA PC plug-in

Interventions

* Physical activity (Activity sessions, type and length of activity, activity intensity estimations) * Meal detection and meal characteristics (accelerometry and gyroscope data) * Oxygen saturation (pulse oximetry) * Number of steps (pedometer) * Stress level indicators (based on heart-rate analytics) * Sleep patterns (sleep and wake-up time, sleep quality)

CIPN groupNo-CIPN group

* GPS positioning (daily location change patterns through pathway analysis and Point-of-interest analysis based on type-of-location automatic detection) * Self-reports from patients and companions reports on mental and physical health, as well as periodic quality of life evaluations3 * Patient self-uploaded pictures of meals (for evaluation of nutritional habits) and living environment stressors (for evaluation of living environment and self-perceived stressor analysis)

CIPN groupNo-CIPN group

* the developed plug-in monitors online activity, collecting anonymized data from web-browsers (Chrome) and social media (Facebook, Youtube and Instagram). * These are relevant to current and historical data on: i) keywords in searches, ii) types of websites visited, iii) reactions to posts, iv) participation in online groups, v) types of bookmarked websites

CIPN groupNo-CIPN group

Eligibility Criteria

Age18 Years+
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients will be identified as potential candidates and consecutively recruited from the oncology clinic at Karolinska University Hospital in Solna. Eligible candidates are patients who have been primarily operated for early non-metastatic breast cancer and are recommended by the multidisciplinary conference to receive adjuvant chemotherapy containing paclitaxel.

You may qualify if:

  • Female patients
  • Age of ≥ 18 years
  • Newly operated primary breast cancer without metastatic disease receiving adjuvant chemotherapy containing paclitaxel
  • No prior chemotherapy other than cyclophosphamide and epirubicin
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0-1
  • Written informed consent
  • Able to communicate with investigators, participate in testing and comply with the requirements of the study-protocol

You may not qualify if:

  • Have received drugs suspected/known to cause peripheral neuropathy
  • Have history of acquired or inherited neuropathy or other genetic disease with increased tendency to develop neuropathy
  • Have known disturbed glucose metabolism, either diabetes mellitus or impaired glucose tolerance
  • Have moderate to severe kidney, liver, lung or heart disease
  • Have known symptomatic or other advanced spinal stenosis
  • Have known autoimmune disease that potentially cause or contribute to neuropathy
  • Have known HIV or active HBV or HCV infections
  • Have known paraneoplastic syndrome
  • Have known alcohol abuse
  • Have known pregnancy or nursing

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Karolinska University Hospital

Solna, Stockholm County, 171 76, Sweden

RECRUITING

Related Links

Biospecimen

Retention: SAMPLES WITH DNA

Blood and skin samples will be taken in different timepoints of the study as described in the protocol. Specifically, from each patient at least 10 ml of blood will be collected and 2 skin samples (3 mm wide, 2-3 mm deep)

MeSH Terms

Conditions

Breast NeoplasmsPolyneuropathies

Condition Hierarchy (Ancestors)

Neoplasms by SiteNeoplasmsBreast DiseasesSkin DiseasesSkin and Connective Tissue DiseasesPeripheral Nervous System DiseasesNeuromuscular DiseasesNervous System Diseases

Study Officials

  • Theodoros Foukakis, MD, PhD

    Karolinska University Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Theodoros Foukakis, MD,PhD

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Senior Consultant, Associate Professor of Oncology

Study Record Dates

First Submitted

September 18, 2023

First Posted

September 25, 2023

Study Start

March 31, 2024

Primary Completion

December 1, 2025

Study Completion (Estimated)

December 1, 2026

Last Updated

March 5, 2025

Record last verified: 2025-03

Locations