Neoplasms

Skin and Connective Tissue Diseases

All Conditions

Heart and Blood Diseases

Symptoms and General Pathology

Substance Related Disorders

Wounds and Injuries

Rare Diseases

Breast Neoplasms

Cardiotoxicity

Heart Diseases

Drug-Related Side Effects and Adverse Reactions

Chemically-Induced Disorders

Radiation Injuries

Chronic Graft Versus Host Disease

Antineoplastic Agents

Antirheumatic Agents

All Drugs and Chemicals

Vasodilator Agents

Respiratory System Agents

Cyclophosphamide

Doxorubicin

Liposomal doxorubicin

Superoxide Dismutase

Nitric Oxide

Immunosuppressive Agents

Immunologic Factors

Antineoplastic Agents, Alkylating

Alkylating Agents

The patients will be assessed before and after chemotherapy treatment.

Body weight, height and waist circumference

Physical Characteristics

Muscular Sympathetic Nervous Activity

Cardiac Function

Heart rate

Blood pressure

Serum and Plasma will be extracted by centrifugation. Endothelial microparticles by flow cytometry Interleukin-6 and tumor necrosis factor α by ELISA, High-sensitive reactive serum C-reactive protein by immunoturbidimetric assay, NT- ProBNP According to Central Laboratory, Hospital das Clinicas, HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo. Endothelin-1 by immunoenzymatic method Nitric oxide by gas chemiluminescence Lipoperoxidation by fluorimetry Carbonyl by spectrophotometer, and Superoxide Dismutase (SOD) by colorimetry.

Blood Assessments

Muscle blood flow

Endothelium-dependent vascular function

Vascular intima-media thickness

Physical Capacity

Four session of intravenous (in bolus) infusion of doxorubicin 60mg/m2 and cyclophosphamide 600mg/m2 with an interval of 21 days between sessions.

Anthracycline & Cyclophosphamide treatment scheme

Raphaela VR Groehs, PhD

Ursula Urias, PhD

Carlos Eduardo Negrao, PHD

Carlos E Negrao, PhD

The present study aims to investigate the chronic effect of treatment with doxorubicin and cyclophosphamide on neurovascular control and blood pressure in women undergoing adjuvant treatment for breast cancer.

The development of new drugs and different adjuvant therapeutic regimens, based on the combination of anthracycline (A) and cyclophosphamide (C), have contributed greatly to improve survival rate in breast cancer patients. Despite the clinical benefits of this therapy, AC treatment can cause cardiovascular acute and chronic changes. In a recent investigation, we observed that an acute AC chemotherapy session increases sympathetic nervous activity and blood pressure in patients with breast cancer.

The present study aims to investigate the chronic effects of AC regimen on sympathetic nervous activity, peripheral vasoconstriction, endothelial microparticles and blood pressure, in women with breast cancer.

Effect of Anthracyclines and Cyclophosphamide on Cardiovascular Responses

Chronic Effect of Doxorubicin and Cyclophosphamide on Neurovascular Control and Blood Pressure in Women in Adjuvant Treatment for Breast Neoplasia

Change in muscular sympathetic nerve activity measured by microneurography

Change in muscle blood flow measured by venous oclusion plethysmography

Change in blood pressure measured by finometer

Change in physical capacity measured by cardiopulmonary exercise test

Change in cardiac function measured by echocardiography

Universidade Federal Fluminense

Hospital Israelita Albert Einstein

University of Sao Paulo General Hospital

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization	Link
Effect of Anthracyclines and Cyclophosphamide on Cardiovascular Responses	NCT04568161	Cardiotoxicity Cardiovascular ... Neurovascular D... Endothelial Dis... Breast Cancer	Physical Charac... Muscular Sympat... Cardiac Functio... Heart rate Blood pressure Blood Assessmen... Muscle blood fl... Endothelium-dep... Vascular intima... Physical Capaci... Anthracycline &...	45 Years - 60 Years	University of Sao Paulo General Hospital
Effect of Anthracyclines and Cyclophosphamide on Cardiovascular Responses	NCT04568161	Cardiotoxicity Cardiovascular ... Neurovascular D... Endothelial Dis... Breast Cancer	Physical Charac... Muscular Sympat... Cardiac Functio... Heart rate Blood pressure Blood Assessmen... Muscle blood fl... Endothelium-dep... Vascular intima... Physical Capaci... Anthracycline &...	45 Years - 60 Years	University of Sao Paulo General Hospital

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