Challenges of mucositis assessment in children: Expert opinion

Validation of healthcare professional proxy-reported children's International Mucositis Evaluation Scale

OBJECTIVE

The objective was to describe the reliability and validity of the healthcare professional proxy-report version of the Children's International Mucositis Evaluation Scale (ChIMES).

METHODS

We included pediatric patients who were between 4 and 21 years of age and scheduled to undergo hematopoietic cell transplantation. Mucositis was evaluated by trained healthcare professionals who scored ChIMES, the World Health Organization oral toxicity scale, mouth, and throat pain visual analogue scale, National Cancer Institute-Common Terminology Criteria and the Oral Mucositis Daily Questionnaire. Measures were completed daily and evaluated on days 7-17 post-stem cell infusion for this analysis. Psychometric properties examined were internal consistency, test-retest reliability (days 13 and 14), and convergent construct validity.

RESULTS

There were 192 participants included. Cronbach's alpha was 0.90 for ChIMES Total Score and 0.93 for ChIMES Percentage Score. Test-retest reliability were as follows: intraclass correlation coefficient (ICC) 0.82 (95% confidence interval (CI) 0.77-0.85) for ChIMES Total Score and ICC 0.82 (95% CI 0.77-0.86) for ChIMES Percentage Score. In terms of construct validation, all correlations between measures met or exceeded those hypothesized (all p < 0.05).

CONCLUSIONS

The healthcare professional proxy-report version of ChIMES is reliable and valid for children and adolescents undergoing hematopoietic cell transplantation.

Factors Associated With Oral Mucositis Severity in Children Who Have Received Chemotherapy

Oral mucositis (OM) is a major complication for pediatric oncology patients undergoing cancer therapy. This paper aimed to report on the relationship between OM severity and various patient factors as well as to compare 2 scales used to assess OM severity. The severity of 68 separate episodes of OM in 47 pediatric oncology patients who had received chemotherapy was regularly assessed using the Children's International Mucositis Evaluation Scale (ChIMES) and World Health Organization (WHO) scale. The mean time from the start of the patients' chemotherapy block to the onset of OM was 8.4 days (±4.0), the median duration of OM was 7.0 days (4.0, 10.5) and median admission duration was 7.0 days (4.5, 13.5). There was a significant relationship between the severity of OM and the duration of symptoms ( P <0.001), patient's admission length ( P <0.001) and low neutrophil count. With decreasing neutrophil count, the severity of OM and number of pain medications used increased. Neutrophil count recovery coincided with resolution of OM. No significant relationship was found between OM severity and the child's cancer diagnosis. The 2 scales used to measure OM severity showed substantial agreement.

The broadening scope of oral mucositis and oral ulcerative mucosal toxicities of anticancer therapies

Oral mucositis (OM) is a common, highly symptomatic complication of cancer therapy that affects patients' function, quality of life, and ability to tolerate treatment. In certain patients with cancer, OM is associated with increased mortality. Research on the management of OM is ongoing. Oral mucosal toxicities are also reported in targeted and immune checkpoint inhibitor therapies. The objective of this article is to present current knowledge about the epidemiology, pathogenesis, assessment, risk prediction, and current and developing intervention strategies for OM and other ulcerative mucosal toxicities caused by both conventional and evolving forms of cancer therapy.

Prevalence and risk factors of oral mucositis in paediatric patients undergoing haematopoietic stem cell transplantation

Background

A complete understanding of oral mucositis (OM) is crucial to develop appropriate interventions to aid in the successful overall health outcome of paediatric patients undergoing haematopoietic stem cell transplantation (HSCT).

Aims

This study aimed at determining the prevalence and severity of OM and at identifying the predictive factors that might aggravate OM at one‐week, two‐week and three‐week post‐HSCT.

Methods

This retrospective, hospital‐based study reviewed the medical records of 170 paediatric patients, summarising the patients’ characteristics using descriptive statistics. Binary logistic regression was used to identify factors associated with the development of OM.

Results

At one‐week post‐HSCT, 41% of 140 patients (n = 49) had developed OM, this was reduced at two‐week (n = 36, 33%) and three‐week (n = 13, 19%) post‐HSCT. Univariate logistic regression revealed that patients with cancer (OR = 0.16, 95% CI = 0.05–0.54; p‐value = .003) had a significantly lower prevalence of OM. Younger patients with an average age of 7.9 years old (OR = 0.85, 95% CI = 0.75–0.97; p‐value = 0.013) and the presence of GvHD (OR = 2.37, 95% CI = 1.03–5.45, p‐value = 0.042) were significantly related to a higher prevalence of OM. Multivariable logistic regression confirmed that the risk of OM is lower in patients with cancer compared to those with immunodeficiency syndromes or hereditary blood diseases (OR = 0.18, 95% CI = 0.04–0.77; p‐value = .021).

Conclusions

This study identified a significantly lower prevalence of OM in patients with cancer compared to other conditions and that young recipients and those who developed GvHD were more likely to have OM.

Advances in the understanding and management of mucositis during stem cell transplantation

PURPOSE OF REVIEW

Mucositis is a severe and common side effect of anticancer treatments, with an incidence of between 40 and 80% depending on the cytotoxic regimen used. The most profound mucositis burden is experienced during conditioning regimens for hematopoietic stem cell transplant (HSCT), where the use of highly mucotoxic agents with or without total body irradiation leads to serious damage throughout the alimentary tract. Currently, the assessment and management of both oral and gastrointestinal mucositis lack authoritative guideline, with recommendations only achieved in narrow clinical scenarios. This review provides a brief overview of current management guidelines for mucositis in both adult and pediatric patients receiving HSCT, highlights recent advances in mucositis prevention and discusses future research avenues.

RECENT FINDINGS

The Multinational Association of Supportive Care in Cancer and International Society for Oral Oncology (MASCC/ISOO) guidelines for the prevention of mucositis in HSCT are scarce, with low level laser therapy (photobiomodulation) and palifermin only recommended for oral mucositis. Loperamide and octreotide remain gold-standard for the treatment of diarrhea, despite poor efficacy. Although several interventions have been trialled in pediatric cohorts, no recommendations currently exist for children receiving high-dose chemotherapy or total body irradiation for HSCT.

SUMMARY

HSCT continues to be associated with mucositis, which impacts on patients' ability and willingness to receive engraftment, and worsens clinical outcome. Research into the prevention and treatment of mucositis in this setting remains limited, with an overwhelming amount of small, single-center studies that fail to achieve a sufficient level of evidence that warrant recommendation(s). As such, our ability to manage mucotoxic side effects of high-dose chemotherapy and irradiation is limited, particularly in children.

Measuring Oral Mucositis of Pediatric Patients with Cancer: A Psychometric Evaluation of Chinese Version of the Oral Mucositis Daily Questionnaire

OBJECTIVE

Oral mucositis is a frequent clinical condition that has been shown to affect pediatric cancer patients. Oral Mucositis Daily Questionnaire (OMDQ) is one of the few available patient-reported outcome measures to assess the extent and impact of oral mucositis. The objectives of the study were to translate the Mouth and Throat Soreness-Related Questions of the OMDQ into Chinese (OMDQ MTS-Ch) for children and adolescents aged 6-18 years receiving chemotherapy and to evaluate its psychometric properties.

METHODS

This was part of a multicenter, prospective cohort study involving two phases. Phase I involved forward-backward translation to fit the cognitive and linguistic age level of the children and adolescents, followed by face and content validation, together with pretesting. In Phase II, which evaluated the internal consistency, test-retest reliability, and discriminant validity, a total of 140 patients completed the OMDQ MTS-Ch for 14 days.

RESULTS

The OMDQ MTS-Ch had satisfactory face and content validities. The Cronbach's alpha coefficient of the OMDQ MTS-Ch was 0.984. All of the corrected item-total correlations were higher than 0.90. The test-retest intraclass correlation coefficient between consecutive days for the OMDQ MTS-Ch items ranged from 0.576 to 0.983; the only value that was not over 0.70 was that for the paired study days 7 and 8 for the item of talking. The mean area-under-the-curve OMDQ MTS-Ch item scores were significantly different among patients with different degrees of mucositis severity (P < 0.001), supporting the discriminant validity.

CONCLUSIONS

It has been shown that the OMDQ MTS-Ch has a good level of reliability and discriminant validity and can be completed by children aged ≥6 years and adolescents on a daily basis to measure mucositis and its related functional limitations.

Caphosol for prevention of oral mucositis in pediatric myeloablative haematopoietic cell transplantation

BACKGROUND

The primary objective was to determine whether topically administered Caphosol, rinsed orally four times daily at the initiation of conditioning, reduces the duration of severe oral mucositis (OM) compared with placebo among children and adolescents undergoing haematopoietic cell transplantation (HCT).

METHODS

This was a Children's Oncology Group multicentre randomised double-blinded placebo-controlled clinical trial. Patients between the ages of 4 and 21 years who were scheduled to undergo myeloablative HCT for any indication were randomised to Caphosol or placebo saline rinses four times daily from initiation of conditioning through day +20. Subjects were assessed daily for OM using the World Health Organisation (WHO) Oral Toxicity Scale, Mouth Pain Categorical Scale (0-10) and the Oral Mucositis Daily Questionnaire (OMDQ). The primary end point was duration of severe OM (WHO ⩾3).

RESULTS

The study enrolled 220 participants with a median age of 13.7 years (range 4.0-21.9); 163 (74%) received allogeneic HCT. The mean (±s.d.) duration of severe OM was not reduced among Caphosol (4.5±5.0 days) vs placebo (4.5±4.8; P=0.99) recipients. The incidence of severe OM in the Caphosol and placebo arms was 63% (57 out of 91) and 68% (62 out of 91), respectively (P=0.44). There were no significant differences in any of the secondary end points between the groups.

CONCLUSIONS

Caphosol did not reduce severe OM when compared with placebo among children and adolescents undergoing myeloablative HCT. Studies to identify effective interventions for OM are needed in this population.

Validation of the Children's International Mucositis Evaluation Scale (ChIMES) in paediatric cancer and SCT

BACKGROUND

Objectives were to describe the reliability and validity of a new paediatric-specific mucositis scale, the Children's International Mucositis Evaluation Scale (ChIMES).

METHODS

In a multi-centre prospective study, children aged 0 to ≤18 years were eligible if they were receiving any of the following: myeloablative stem cell transplantation (SCT), ≥60 mg m(-2) course(-1) doxorubicin or ≥12 g m(-2) methotrexate. Multiple measures of mucositis were included along with ChIMES. Respondents were parent proxy report for children aged <12 years, and child self-report for children aged 12-18 years and 8 to <12 years. Mucositis diaries were completed at baseline and on Days 7-17 following chemotherapy/conditioning. On Day 14, the respondent reported presence of mucositis and change since the previous day.

RESULTS

The 185 respondents included parents (N=98), children aged 12-18 years (N=66) and children aged 8 to <12 years (N=21). Test-retest reliability was excellent for ChIMES Total Score and ChIMES Percentage Score with r>0.8 for all respondent types. Criteria for construct validation were met across all measures. ChIMES also demonstrated responsiveness with significant differences between baseline and Day 14.

CONCLUSION

ChIMES is a paediatric-specific measure of mucositis with favourable psychometric properties. It exhibits reliability, construct validity and responsiveness. ChIMES should be incorporated into clinical trials of mucositis prevention and treatment in paediatric cancer and SCT.

Development and initial evaluation of electronic Children's International Mucositis Evaluation Scale (eChIMES) for children with cancer

PURPOSE

We previously developed a pediatric-specific measure of oral mucositis named the Children's International Mucositis Evaluation Scale (ChIMES). Availability as an electronic version may improve self-report response rates. The objectives were to develop an electronic version of ChIMES (eChIMES) and to determine whether the instrument is easy to use, understandable, and suitable for measuring mucositis among children and adolescents with cancer.

METHODS

Development of eChIMES was on an iPad; the initial version was piloted with ten children to refine instructions for use and presentation. A crosssectional study then was conducted and included English-speaking children and adolescents 8-18 years of age receiving active treatment for cancer. Participants were shown eCHIMES and were asked to complete it. Questions elicited whether they found eChIMES easy or difficult to use, easy or difficult to understand, and suitable (a good way) for children with cancer to monitor mucositis. Outcomes were rated using five-point ordinal scales.

RESULTS

Following the development and initial refinement of eChIMES, 40 children were enrolled. Median age was 12.4 (range, 8.0 to 17.8) years. The instrument was found to be easy or very easy to use and understood by 40 (100 %) and 38 (95 %) participants, respectively. The application was considered suitable or very suitable for measuring mucositis by 37 (92 %).

CONCLUSIONS

We found that eChIMES was easy to use, understandable, and suitable for monitoring mucositis among children with cancer. Incorporation into clinical trials may improve the ability to compare and evaluate interventions for mucositis.

Initial development of the Symptom Screening in Pediatrics Tool (SSPedi)

BACKGROUND

We previously identified published scales for symptom assessment in pediatric cancer patients. The objectives of this study were to identify if any of these scales were suitable for use or adaptation as a self-report symptom screening tool, and if not, to begin the process of creating a new tool.

METHODS

A focus group of ten healthcare professionals with expertise in pediatric cancer symptom management and a patient advocate were convened. First, the group identified the optimal properties of a symptom screening tool for pediatric cancer patients. Next, the previously identified symptom assessment scales were evaluated against these properties. As none of the existing scales were adequate for symptom screening, a nominal group technique was used to identify the most important symptoms for inclusion in a new symptom screening tool.

RESULTS

Optimal properties of a symptom screening tool included minimal respondent burden, inclusion of 15 items or less, and inclusion of the most burdensome symptoms. None of the previously identified scales were adequate because they lacked content validity and were too long or would be too hard for children to understand. Nominal group technique identified 15 items to be included; an initial draft was developed and named the Symptom Screening in Pediatrics (SSPedi) Tool.

CONCLUSIONS

This study identified the lack of an appropriate symptom screening tool for use by pediatric cancer patients. A preliminary version of SSPedi was developed. Subsequent work will ensure that it is understandable by children and evaluate its psychometric properties.

Patterns of chemotherapy-induced toxicities in younger children and adolescents with rhabdomyosarcoma: a report from the Children's Oncology Group Soft Tissue Sarcoma Committee

BACKGROUND

Patients aged >10 years with rhabdomyosarcoma have an inferior outcome compared with patients ages 1 to 9 years, which may be explained by toxicities (adverse events [AEs]) that result in chemotherapy dose reductions.

METHODS

AEs observed during 1 of 3 randomized chemotherapy regimens (vincristine, dactinomycin, and cyclophosphamide [VAC]; vincristine, dactinomycin, and ifosfamide [VAI]; or vincristine, ifosfamide, and etoposide [VIE]) in the Fourth Intergroup Rhabdomyosarcoma Study were recorded. The incidence of toxicities by age and treatment regimen was determined. The odds of developing AEs in a particular age group (ages 5-9 years, 10-14 years, and 15-20 years) were compared with the odds in the control group of patients ages 1 to 4 years.

RESULTS

In total, 657 patients were eligible for analysis. The estimated 5-year event-free survival rates were 78%, 83%, 67%, and 58% for the groups ages 1 to 4 years, 5 to 9 years, 10 to 14 years, and 15 to 20 years, respectively. Patients ages 15 to 20 years experienced less neutropenia (odds ratio [OR], 0.43; P < .0001), thrombocytopenia (OR, 0.41; P < .0001), anemia (OR, 0.34; P < .0001), and infection (OR, 0.41; P < .0001) compared with younger patients, although they received similar amounts of chemotherapy. In contrast, peripheral nervous system toxicity was higher in adolescents aged >10 years (OR, 4.18; P < .0001). Females experienced more neutropenia (OR, 1.28; P = .05) and thrombocytopenia (OR, 1.26; P = .06) compared with males.

CONCLUSIONS

Adolescents who received treatment for rhabdomyosarcoma experienced significantly less hematologic toxicity and more peripheral nervous system toxicity compared with younger children despite receiving similar amounts of chemotherapy. Although outcomes were inferior in adolescents, it was unclear whether the differences in toxicity observed in the current study had an impact on outcome. The authors concluded that future studies examining the age-related and sex-related differences in pharmacokinetics of chemotherapy are necessary.

A systematic review of oral assessment instruments: what can we recommend to practitioners in children's and young people's cancer care?

BACKGROUND

Observing and recording the signs and symptoms of oral mucositis are an important part of oral care, essential to the prevention and treatment of mucositis. Structured oral assessment enables a more informed and accurate identification of signs and symptoms and will enable early and individualized interventions.

OBJECTIVE

A United Kingdom-based mouth-care group conducted a systematic review of the published literature through to March 2004 and repeated in 2008. The goal of this review was to identify and evaluate the range of instruments used to assess oral mucositis to recommend in evidence-based guidelines the "best" instrument to use in the field of children's and young people's cancer care.

METHODS

Search sources included the Cochrane Library, MEDLINE, EMBASE, and CINAHL. Studies were selected using defined criteria and reviewed by 3 pairs of group members.

RESULTS

Fifty-four individual oral assessment instruments were identified with only 15 reporting evidence of reliability and validity testing. Only 3 articles reported on oral assessment exclusively in our population.

CONCLUSIONS

The guidelines recommend only 1 assessment instrument, the Oral Assessment Guide, or adaptations of this instrument, to be used in clinical practice. Five factors influenced this recommendation: purpose of assessment, population, outcomes assessed, and quality of the instrument and ease of use.

IMPLICATIONS FOR PRACTICE

The Oral Assessment Guide has been consistently judged to be user-friendly and appropriate for everyday clinical practice with both adults and children, as well as a useful research tool.

Understandability, content validity, and overall acceptability of the Children's International Mucositis Evaluation Scale (ChIMES): child and parent reporting

Mucositis assessment in children has primarily relied on assessment tools that have been developed for an adult population. A mucositis assessment scale for use in children has previously been developed from expert opinion, namely Children's International Mucositis Evaluation Scale (ChIMES). After the development of ChIMES, we aimed to evaluate the user perspective of the scale by testing the understandability, content validity, and overall acceptability of ChIMES working with parents, children, and teenagers as content experts. Overall acceptability of the scale was satisfactory; however, comments provided by the participants questioned several aspects of the initial version of ChIMES. After discussion of the results, a refined version of ChIMES was produced that accounts for the views of the target population.

Designing an oral mucositis assessment instrument for use in children: generating items using a nominal group technique

GOALS OF WORK

There was a need to develop a mucositis instrument that would be specific for use with children. This paper describes the step of generating items in the process of developing a new instrument for the assessment of oral mucositis in children.

MATERIALS AND METHODS

Nine health care professionals with expertise in pediatric cancer, mucositis assessment, and oral assessment in children were invited to participate in a nominal group technique to generate items that should be included in an instrument.

RESULTS

Thirty items were generated initially. Voting processes established that six of these items were thought to be necessary for inclusion: (1) presence of ulcers, (2) pain assessment, (3) amount of pain medication received, (4) effect on eating, (5) drooling-pooling of saliva, and (6) effect on drinking. Using these six items, an initial draft of an instrument was developed that could be used to assess oral mucositis in children, namely, the Children's International Mucositis Evaluation Scale.

CONCLUSION

The six items generated by this process provided the basis for a simple, feasible, and reliable instrument. With increased clinical research investigating interventions to reduce and prevent oral mucositis, such an instrument will be critical to the effective conduct of this research in children. Further testing of this instrument is necessary.