A phase III randomized double-blind placebo-controlled clinical trial to determine the efficacy of low level laser therapy for the prevention of oral mucositis in patients undergoing hematopoietic cell transplantation.

Abstract

INTRODUCTION:

Oral mucositis (OM) is a significant early complication of hematopoietic cell transplantation (HCT). This phase III randomized double-blind placebo-controlled study was designed to compare the ability of 2 different low level GaAlAs diode lasers (650 nm and 780 nm) to prevent oral mucositis in HCT patients conditioned with chemotherapy or chemoradiotherapy.

MATERIALS AND METHODS:

Seventy patients were enrolled and randomized into 1 of 3 treatment groups: 650 nm laser, 780 nm laser or placebo. All active laser treatment patients received daily direct laser treatment to the lower labial mucosa, right and left buccal mucosa, lateral and ventral surfaces of the tongue, and floor of mouth with energy densities of 2 J/cm2. Study treatment began on the first day of conditioning and continued through day +2 post HCT. Mucositis and oral pain was measured on days 0, 4, 7, 11, 14, 18, and 21 post HCT.

RESULTS:

The 650 nm wavelength reduced the severity of oral mucositis and pain scores. Low level laser therapy was well-tolerated and no adverse events were noted.

DISCUSSION:

While these results are encouraging, further study is needed to truly establish the efficacy of this mucositis prevention strategy. Future research needs to determine the effects of modification of laser parameters (e.g., wavelength, fluence, repetition rate of energy delivery, etc.) on the effectiveness of LLE laser to prevent OM.

• Authors: Mark M Schubert, Fernanda P Eduardo, Katherine A Guthrie, Jean-Claude Franquin, Rene-Jean J Bensadoun, Cesar A Migliorati, C Michele E Lloid, Carlos P Eduardo, Niccoli-Filho Walter, Marcia M Marques, Mohd Hamdi
• Journal: Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer (Support Care Cancer) Vol. 15 Issue 10 Pg. 1145-54 (Oct 2007) ISSN: 0941-4355 [Print] Germany
• PMID: 17393191 (Publication Type: Clinical Trial, Phase III, Journal Article, Randomized Controlled Trial)

Topics

• Adult
• Aged
• Female
• Hematopoietic Stem Cell Transplantation
• Humans
• Laser Therapy (instrumentation, methods)
• Male
• Middle Aged
• Preventive Medicine (methods)
• Stomatitis (prevention & control)
• Treatment Outcome
• Washington