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dinsdag, 16 augustus 2011 - Categorie: Onderzoeken

Gerelateerd artikel: Berichten%20Internationaal/5991

Bron: British Journal of Cancer 9 August 2011; doi: 10.1038/bjc.2011.292

Treatment of advanced hepatocellular carcinoma with very low levels of amplitude-modulated electromagnetic fields

F P Costa 1, A C de Oliveira 1, R Meirelles 1, M C C Machado 1, T Zanesco 1, R Surjan 1,
M C Chammas 2, M de Souza Rocha 2,
D Morgan 3,
A Cantor 4,
J Zimmerman 5,
I Brezovich 6,
N Kuster 7,
A Barbault 8 and
B Pasche 5

1.
Department of Transplantation and Liver Surgery, Hospital das Clnicas da Faculdade de Medicina, University of So Paulo, Av. Dr. Enas de Carvalho Aguiar, 255, So Paulo 05403-000, Brazil

2.
Department of Radiology, Hospital das Clnicas, University of So Paulo, So Paulo 05403-000, Brazil

3.
Department of Radiology, University of Alabama at Birmingham and UAB Comprehensive Cancer Center, Birmingham, AL 35294, USA

4.
Biostatistics and Bioinformatics Shared Facility, University of Alabama at Birmingham and UAB Comprehensive Cancer Center, Birmingham, AL 35294, USA

5.
Division of Hematology/Oncology, Department of Medicine, University of Alabama at Birmingham and UAB Comprehensive Cancer Center, 1802 6th Ave South, NP 2566, Birmingham, AL 35294-3300, USA

6.
Department of Radiation Oncology, The University of Alabama at Birmingham and UAB Comprehensive Cancer Center, Birmingham, AL 35294, USA

7.
IT'IS Foundation, Swiss Federal Institute of Technology, Zurich, Switzerland

8.
Rue de Verdun 20, Colmar 68000, France

Correspondence:
Dr FP Costa, E-mail: fredericoperegocosta@gmail.com;
Dr B Pasche, E-mail: Boris.Pasche@ccc.uab.edu

Abstract
Background:

Therapeutic options for patients with advanced hepatocellular carcinoma (HCC) are limited. There is emerging evidence that the growth of cancer cells may be altered by very low levels of electromagnetic fields modulated at specific frequencies.

Methods:

A single-group, open-label, phase I/II study was performed to assess the safety and effectiveness of the intrabuccal administration of very low levels of electromagnetic fields amplitude modulated at HCC-specific frequencies in 41 patients with advanced HCC and limited therapeutic options. Three-daily 60-min outpatient treatments were administered until disease progression or death. Imaging studies were performed every 8 weeks. The primary efficacy end point was progression-free survival greater than or equal to6 months. Secondary efficacy end points were progression-free survival and overall survival.

Results:
Treatment was well tolerated and there were no NCI grade 2, 3 or 4 toxicities. In all, 14 patients (34.1%) had stable disease for more than 6 months. Median progression-free survival was 4.4 months (95% CI 2.15.3) and median overall survival was 6.7 months (95% CI 3.010.2). There were three partial and one near complete responses.

Conclusion:
Treatment with intrabuccally administered amplitude-modulated electromagnetic fields is safe, well tolerated, and shows evidence of antitumour effects in patients with advanced HCC.


Voor het originele abstract zie:
www.nature.com/bjc/journal/vaop/ncurrent/abs/bjc2011292a.html .



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