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2011-06-28

New study evaluating the effect of CAPHOSOL in reducing Oral Mucositis in head and neck cancer patients undergoing chemo-radiotherapy or radiotherapy

M.Thomson. BEATSON ONCOLOGY CENTRE WESTERN INFIRMARY, Glasgow, UK

The purpose of this study was to evaluate the implementation of Caphosol in the prevention and treatment of mucositis in patients undergoing Radiotherapy or Chemo-radiotherapy whose treatment fields included a large part of the oral cavity. compared to the previous standard treatment.

Materials: 60 patients undergoing whole mouth irradiation for oral and oropharynx cancers over a 6 month period in 2010 were included in the assessment. Patients suitable for inclusion in the study were selected by a consultant radiographer. A retrospective review of 30 patients who had completed radiotherapy receiving the standard treatment were compared to 30 patients who had received Caphosol mouthwash.

Patients were treated according to the following regimen: 36 patients: 68Gy in 34 fractions; 24 patients: 66Gy in 33 fractions. All patients were instructed to rinse with Caphosol 4 times daily from the start of radiotherapy until radiation therapy was completed.

Caphosol was prescribed on a weekly basis so that compliance to study medication could be assessed. Patients were monitored through weekly clinic assessment for: Grade of oral mucositis - using the CTC/EORTC/RTOG assessment scale (range 0-4); Weight change; Performance status - assessed using the WHO Scale (range 0-4); Oral intake - assessed using the BWoSCC scale (range 0-4); Pain - using the WHO Pain Ladder which includesa patient self-assessment.

Results: The results from the statistical analysis showed statistical significance in Oral Mucositis (OM)grade and in analgesic steps. OM grade showed statistical significance for weeks 3,4,5,6 and 7 with a p values of 0.004 for week3, p=0 for week4, p=0 for week 5 and p=0 for week 6. Week 7 had a different sample size N=17 for Caphosol and N=12 for Corsodyl. Week 7 had a p value of 0. The median for Caphosol was lower in each of theseweeks which showed Caphosol improved OM grade.Results for the analgesic steps were similar. Week 1,2,and 3 showed no statistical significance and week 4, 5, 6 and 7 all showed a significant diference between the two mouthwashes. P value for week4 was 0, week 5 p=0.001 and week 6 p=0.001. Again week 7 had a different sample size but showed a statistical difference with a p value of 0.003.The results for oral intake showed no statistically significant difference between the mouthwashes for weeks 1 and 2. Week,3 4, 5, and 6 all showed statistically significant differnece with p values of 0.004 for week3, p=0.32 for week4, p=0.01 for week 5 and p=0.02 for week 6. This shows that patients using Caphosol can eat more orally during treatment.

Conclusions:Positive: Results encouraging with statistical significance in the reduction of overall grade of OM and the reduction in the use of analgesia. Caphosol worthy of further investigation in the weeks immediately prior to completion of radiotherapy treatment in the area of head and neck cancers. Results consistent with previously published studies in head and neck cancer and other therapy areas.

Limitations : Mucositis graded by members of MDT so possibility of inconsistency in grading limited to 4 rinses per day only no advice to increase in line with symptoms as per product information which states can increase to 10 per day.

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