Striking regression of chronic radiotherapy damage in a clinical trial of combined pentoxifylline and tocopherol

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Published on Friday, 04 January 2019

Abstract

PURPOSE: Radiation-induced fibrosis (RIF) remains the most morbid complication of radiotherapy because of the absence of spontaneous regression and the difficulty of patient management. RIF treatment with combined pentoxifylline (PTX) and tocopherol (Vit E) was prompted by recent advances in cellular and molecular biology that have improved researchers' understanding of radiation-induced late-injury mechanisms and by the excellent results from our previous human and animal studies.

PATIENTS AND METHODS: Forty-three patients (mean [+/- SD] age, 59 +/- 10 years) presenting with 50 symptomatic RIF areas involving the skin and underlying tissues were treated from April 1995 to September 1997. Patients had had radiotherapy for head and neck or breast cancer a mean period of 8.5 +/- 6.5 years previously. RIF developed in the first year after irradiation and gradually worsened, without spontaneous regression. The mean measurable surface area of RIF ([S]) at the time of this study ([S(0)]) was 42 +/- 34 cm(2). The initial Subjective Objective Medical management and Analytic (SOMA) injury evaluation score was 13.2 +/- 5.9 and included evidence of edema, plexitis, restricted movement, and local inflammatory signs. A combination of PTX (800 mg/d) and Vit E (1,000 IU/d) was administered orally for at least 6 months.

RESULTS: Treatment was well tolerated. All assessable injuries exhibited continuous clinical regression and functional improvement. Mean RIF surface area and SOMA scores improved significantly (P <.0001) at 3 months ([S(3)], -39%; [SOMA(3)], -22%), 6 months ([S(6)], -53%; [SOMA(6)], -35%), and 12 months ([S(12)], -66%; [SOMA(12)], -48%), and mean linear dimensions ([D]) diminished from the start of the study ([D(0)], 6.5 +/- 2.5 cm) to the end of treatment 12 months later ([D(12)], 4 +/- 2 cm). At the time of the treatment, we did not attempt to achieve the maximum effect, and the study was continued.

CONCLUSION: The PTX-Vit E combination reversed human chronic radiotherapy damage and, because no other treatment is presently available for RIF, should be considered as a therapeutic measure.

 

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See also:

- Official Web Site: The Di Bella Method;

- The Di Bella Method (A Fixed Part - Alpha tocopheryl acetate/Vitamin E, approximately 20 grams per day orally);

- Solution of retinoids in vitamin E in the Di Bella Method biological multitherapy;

- All-Trans-Retinoic Acid (ATRA - analogues and/or derivatives) - In vitro, review and in vivo publications;

- The Di Bella Method (A Fixed Part - All-Trans Retinoic Acid, Analogues and/or Derivatives - Approximately 60mg per day orally: 40mg per day Beta-Carotene/β-Carotene, 10mg per day ATRA and 10mg per day Axerophthol palmitate);

- The Di Bella Method (A Fixed Part - Cyclophosphamide 50mg tablets and/or Hydroxyurea 500mg tablets, one or two per day);

- The Di Bella Method DBM improved survival objective response and performance status in a retrospective observational clinical study on 23 tumours of the head and neck;

- The Synergism of Somatostatin, Melatonin, Vitamins Prolactin and Estrogen Inhibitors Increased Survival, Objective Response and Performance Status In 297 Cases of Breast Cancer;

- Complete objective response, stable for 5 years, with the Di Bella Method, of multiple-metastatic carcinoma of the breast;

- Evaluation of the safety and efficacy of the first-line treatment with somatostatin combined with melatonin, retinoids, vitamin D3, and low doses of cyclophosphamide in 20 cases of breast cancer: a preliminary report;

- The Di Bella Method (DBM) improved survival, objective response and performance status in a retrospective observational clinical study on 122 cases of breast cancer;

- Complete objective response to biological therapy of plurifocal breast carcinoma;

- Recurrent Glioblastoma Multiforme (grade IV – WHO 2007): a case of complete objective response achieved by means of the concomitant administration of Somatostatin and Octreotide – Retinoids – Vitamin E – Vitamin D3 – Vitamin C – Melatonin – D2 R agonists (Di Bella Method – DBM) associated with Temozolomide;

- Somatostatin, retinoids, melatonin, vitamin D, bromocriptine, and cyclophosphamide in advanced non-small-cell lung cancer patients with low performance status;

- Somatostatin, retinoids, melatonin, vitamin D, bromocriptine, and cyclophosphamide in chemotherapy-pretreated patients with advanced lung adenocarcinoma and low performance status;

- Observations on the Report of a case of pulmonary adenocarcinoma with lymph node, hepatic and osseus metastasis;

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- Oesophageal squamocellular carcinoma: a complete and objective response.