NCT06018038

Brief Summary

Breast cancer is the most common type of cancer among women worldwide. The incidence rate has reached approximately 16%. According to 2016 data from the Ministry of Health, the incidence of breast cancer in Turkey is 46.8 per 100,000 people and approximately 17,000 women are diagnosed with breast cancer each year. While breast cancer survival rate is 80% in developed countries, this rate varies between 40-60% in low-middle income countries. Survival can be increased with early diagnosis and more effective treatment methods. However, a wide range of treatment-related complications are observed during and/or after breast cancer treatment. Cancer survivors are exposed to a variety of direct (local/regional therapy, systemic therapy and supportive care) and indirect factors (modifiable and non-modifiable risk factors) that can have adverse effects on pulmonary, cardiovascular, hematologic and musculoskeletal components. Oxygen consumption in cancer patients may be adversely affected by aging, deconditioning, existing comorbidities, cancer pathophysiology and cancer treatments (surgery, radiation, chemotherapy and hormone therapy). Although decreased functional capacity is common after breast cancer treatment, there are few studies evaluating maximal arm exercise capacity with oxygen consumption.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
60

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Jun 2024

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

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

First Submitted

Initial submission to the registry

August 24, 2023

Completed
6 days until next milestone

First Posted

Study publicly available on registry

August 30, 2023

Completed
9 months until next milestone

Study Start

First participant enrolled

June 1, 2024

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2024

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2024

Completed
Last Updated

July 3, 2025

Status Verified

July 1, 2025

Enrollment Period

3 months

First QC Date

August 24, 2023

Last Update Submit

July 2, 2025

Conditions

Keywords

Maximal Oxygen Consumptionbreast cancerUpper Extremity Exercise CapacityPhysical Activity Level

Outcome Measures

Primary Outcomes (1)

  • Cardiopulmonary Exercise Testing (CPET)

    Maximal Oxygen Consumption (VO2max)

    One Year

Secondary Outcomes (8)

  • Upper Extremity Oxidative Muscle Metabolism

    One Year

  • Peripheral Muscle Strength

    One Year

  • Evaluation of Quality of Life

    One Year

  • Physical activity levels

    One Year

  • Upper Limb Functionality

    One Year

  • +3 more secondary outcomes

Study Arms (2)

Breast Cancer Group

Inclusion criteria were to be between 18-65 years of age, to volunteer to participate in the study, to have Stage I-III breast cancer, to have at least 15 months after breast cancer surgery, to have six months after active breast cancer treatment (i.e. surgery/chemotherapy), to have no problems in reading and/or understanding the scales and to be able to cooperate with the tests. Exclusion criteria were the presence of active infection, musculoskeletal and neurologic disease that may affect exercise performance, symptomatic heart disease, neurologic disease or other clinical diagnosis that may affect cognitive status.

Diagnostic Test: Maximal Exercise Capacity, Maximal Oxygen Consumption (VO2max)

Control Group

The inclusion criteria were to be between 18-65 years of age, to be willing to participate in the study, to have no problems in reading and/or understanding the scales and to be able to cooperate with the tests. Exclusion criteria were having any orthopedic or neuromuscular condition that would interfere with walking or exercise performance, having any chronic disease, or having psychiatric disorders or mental disorders that might interfere with cooperation or compliance with exercise tests.

Diagnostic Test: Maximal Exercise Capacity, Maximal Oxygen Consumption (VO2max)

Interventions

Cardiopulmonary Exercise Testing (CPET)

Breast Cancer GroupControl Group

Eligibility Criteria

Age15 Years - 65 Years
Sexfemale
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Patients between the ages of 18-65 years who are diagnosed with breast cancer at Hacettepe University Hospital, Department of Internal Medicine, Division of Medical Oncology, and who volunteer to participate in the study will be included in the study. For healthy groups, age and gender appropriate volunteers will be recruited for the study

You may qualify if:

  • Breast Cancer Group:
  • Being between 18-65 years of age,
  • Volunteering to participate in the research,
  • Stage I-III breast cancer,
  • At least 15 months after breast cancer surgery,
  • Six months after active breast cancer treatment (i.e. surgery/chemotherapy),
  • No lymphedema
  • No problems in reading and/or understanding the scales and being able to cooperate with the tests,
  • Healthy group:
  • Age between 18-65 years,
  • Volunteering to participate in the research,
  • No problems in reading and/or understanding the scales and being able to cooperate with the tests.

You may not qualify if:

  • Breast Cancer Group:
  • Presence of active infection,
  • Musculoskeletal and neurological diseases that may affect exercise performance, symptomatic heart disease,
  • Having a neurological disease or other clinical diagnosis that may affect cognitive status.
  • Healthy group:
  • Having any orthopedic or neuromuscular condition that would interfere with walking or exercise performance,
  • Having any chronic disease or psychiatric disorders or mental impairments that may interfere with cooperation or compliance with exercise tests

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hacettepe University

Ankara, State, 06100, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Breast Neoplasms

Condition Hierarchy (Ancestors)

Neoplasms by SiteNeoplasmsBreast DiseasesSkin DiseasesSkin and Connective Tissue Diseases

Study Officials

  • Ebru Calik Kutukcu, PhD

    Hacettepe University

    PRINCIPAL INVESTIGATOR
  • Melda Saglam, PhD

    Hacettepe University

    STUDY CHAIR

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

August 24, 2023

First Posted

August 30, 2023

Study Start

June 1, 2024

Primary Completion

September 1, 2024

Study Completion

December 1, 2024

Last Updated

July 3, 2025

Record last verified: 2025-07

Data Sharing

IPD Sharing
Will not share

Locations