Community-based recruitment and enrollment for a clinical trial on the sensitive issue of fecal incontinence: the Fiber study

Drug treatment for faecal incontinence in adults

BACKGROUND

Faecal incontinence (leakage of bowel motions or stool) is a common symptom which causes significant distress and reduces quality of life.

OBJECTIVES

To assess the effects of drug therapy for the treatment of faecal incontinence. In particular, to assess the effects of individual drugs relative to placebo or other drugs, and to compare drug therapy with other treatment modalities.

SEARCH METHODS

We searched the Cochrane Incontinence Group Specialised Register of Trials, which contains trials identified from the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE and MEDLINE in process, and handsearching of journals and conference proceedings (searched 21 June 2012) and the reference lists of relevant articles.

SELECTION CRITERIA

All randomised or quasi-randomised controlled trials were included in this systematic review.

DATA COLLECTION AND ANALYSIS

Two review authors independently screened abstracts, extracted data and assessed risk of bias of the included trials.

MAIN RESULTS

Sixteen trials were identified, including 558 participants. Eleven trials were of cross-over design. Eleven trials included only people with faecal incontinence related to liquid stool (either chronic diarrhoea, following ileoanal pouch or rectal surgery, or due to use of a weight-reducing drug). Two trials were amongst people with weak anal sphincters, one in participants with faecal impaction and bypass leakage, and one in geriatric patients. In one trial there was no specific cause for faecal incontinence.Seven trials tested anti-diarrhoeal drugs to reduce faecal incontinence and other bowel symptoms (loperamide, diphenoxylate plus atropine, and codeine). Six trials tested drugs that enhance anal sphincter function (phenylepinephrine gel and sodium valproate). Two trials evaluated osmotic laxatives (lactulose) for the treatment of faecal incontinence associated with constipation in geriatric patients. One trial assessed the use of zinc-aluminium ointment for faecal incontinence. No studies comparing drugs with other treatment modalities were identified.There was limited evidence that antidiarrhoeal drugs and drugs that enhance anal sphincter tone may reduce faecal incontinence in patients with liquid stools. Loperamide was associated with more adverse effects (such as constipation, abdominal pain, diarrhoea, headache and nausea) than placebo. However, the dose may be titrated to the patient's symptoms to minimise side effects while achieving continence. The drugs acting on the sphincter sometimes resulted in local dermatitis, abdominal pain or nausea. Laxative use in geriatric patients reduced faecal soiling and the need for help from nurses.Zinc-aluminium ointment was associated with improved quality of life, with no reported adverse effects. However, the observed improvement in quality of life was seen in the placebo group as well as the treatment group.It should be noted that all the included trials in this review had small sample sizes and short duration of follow-up. 'Risk of bias' assessment was unclear for most of the domains as there was insufficient information. There were no data suitable for meta-analysis.

AUTHORS' CONCLUSIONS

The small number of trials identified for this review assessed several different drugs in a variety of patient populations. The focus of most of the included trials was on the treatment of diarrhoea, rather than faecal incontinence. There is little evidence to guide clinicians in the selection of drug therapies for faecal incontinence. Larger, well-designed controlled trials, which use the recommendations and principles set out in the CONSORT statement, and include clinically important outcome measures, are required.

Family management of a chronic health condition: perspectives of adolescents

A growing number of adolescents and their families are dealing with a chronic health condition that impacts their daily life. Research using the Family Management Style Framework (FMSF) has added much to our understanding of how the family integrates chronic condition management into family life. Less clear, however, is the adolescent perspective of the FMSF components. The purpose of this secondary qualitative analysis was to explore 25 interviews of adolescents with spina bifida to uncover the adolescent's perspective of the three major FMSF components: Definition of the Situation, Management Behaviors, and Perceived Consequences. Adolescents were able to articulate their perspectives and their observations of their parents' behaviors that related to the three components and related dimensions of the framework. Data from this analysis led to proposed expansion of the FMSF definitions from an adolescent perspective. Implications for integrating the adolescent perspective into future research and clinical practice are discussed.

Goals of fecal incontinence management identified by community-living incontinent adults

The purpose of this study was to identify goals of fecal incontinence (FI) management and their importance to community-living adults if complete continence would not be possible. Participants expressed their goals of FI management in a semistructured interview, selected others from 12 investigator-identified goals, and rated their importance. Five thematic categories emerged from the 114 participant-identified goal statements: Fecal Incontinence/Bowel Pattern, Lifestyle, Emotional Responses, Adverse Effects of Fecal Incontinence, and Self-Care Practices. Participants selected a median of seven investigator-identified goals (range = 2 to 12). Goals selected by the most participants were decreased number of leaks of stool and greater confidence in controlling fecal incontinence. These goals also had the highest importance along with decreased leakage of loose or liquid stool. The type and number of management goals identified by participants offer a toolbox of options from which to focus therapy when cure is not possible and promote patient satisfaction.

Comparing community and specialty provider-based recruitment in a randomized clinical trial: clinical trial in fecal incontinence

Recruitment of participants to clinical trials remains a significant challenge, especially for research addressing topics of a sensitive nature such as fecal incontinence (FI). In the Fiber Study, a randomized controlled trial on symptom management for FI, we successfully enrolled 189 community-living adults through collaborations with specialty-based and community-based settings, each employing methods tailored to the organizational characteristics of their site. Results show that using the two settings increased racial and ethnic diversity of the sample and inclusion of informal caregivers. There were no differential effects on enrollment, final eligibility, or completion of protocol by site. Strategic collaborations with complementary sites can achieve sample recruitment goals for clinical trials on topics that are sensitive or known to be underreported.

Health literacy and emotional responses related to fecal incontinence

PURPOSE

The primary purpose of this study was to examine continence literacy of individuals with fecal incontinence (FI) by identifying terms they used to refer to FI and to explore their emotional responses to FI. A secondary aim was to compare differences based on gender and age in younger (<65 years) versus older persons (>65 years) with FI.

DESIGN

Secondary analysis of data collected prospectively in a clinical trial of fiber supplementation for FI.

METHODS

Content analysis of participants' statements reported in field notes of data collectors and their responses to data forms and questions.

RESULTS

Only one participant used the term fecal incontinence to describe FI. Alternate terms described stool characteristics, named other gastrointestinal problems, or respondents referred to FI, using a term that seemed to depersonalize the problem. Emotional responses to FI focused on the influence of bothersome symptoms, interference with social activities, and need for control. Some participants used humor to cope with FI and reported emotional benefits gained through participation in a study. Women were impacted by the social limitations of having FI more than men. Younger people were more likely to express feelings of emotional upset than were older respondents.

CONCLUSION

There is a need to increase health literacy about FI. WOC nurses are well qualified to educate patients about FI and to evaluate if higher continence literacy increases reporting of FI. Understanding the various emotional responses to FI may guide the optimal support that WOC nurses can provide and facilitate better management of FI.

Recruitment strategy effectiveness for a cryotherapy intervention for a venous leg ulcer prevention study

PURPOSE

To describe the strategies and costs associated with recruiting African American and white adults into a randomized controlled pilot trial.

DESIGN

"Cryotherapy for Venous Disorders: A Pilot Study" is a randomized controlled trial designed to determine the effects of a cool gel wrap and leg elevation intervention versus a leg elevation alone intervention on skin temperature, skin microcirculation, quality of life, and pain in adults with stages 4 and 5 chronic venous disorders. We sought to recruit 60 participants (21 African Americans, 37 whites, and 2 Hispanic or Latino) to complete the study. These enrollment targets reflect the demographic distribution of the community in which the study was conducted (33% African American, 66% white, and 2% Latino). Proactive and reactive recruitment strategies were implemented to recruit subjects.

RESULTS

Seventy-three individuals (9 African American men, 29 African American women, 11 white men, 22 white women, 1 Asian woman, and 1 Hispanic woman) were screened, and of those, 67 were randomized (9 African American men, 25 African American women, 9 white men, 22 white women, 1 Asian woman, and 1 Hispanic women). Fifty-eight completed the study, yielding an overall 11% attrition rate. An additional 8 subjects canceled or did not show up for a first appointment. Reactive recruitment strategies were most successful for recruiting men, women, African American, and white participants. The 3 most successful reactive strategies were referrals from providers/clinics (34%), flyers posted in the hospital elevators (22%), and targeted mailings from a business (16%). Of the healthcare provider referrals (19), wound care nurses referred 12 completed participants. The amount budgeted for advertisement was $5,000 (2% of the total grant award). The amount spent on recruitment including labor was $5,978, which averaged $103 per participant who completed the study (N = 58). Reactive strategies per participant completer proved more cost-efficient than proactive strategies ($83 vs $215). However, the time spent by the principal investigator (approximately 100 hours or 2.5 hours per week x 40 weeks) on recruitment, particularly maintaining frequent face-to-face contact with providers, increased success in the area of healthcare provider referrals.

CONCLUSION

A variety of recruitment strategies are needed to ensure a diverse participant response to clinical research studies. As nurses become more involved in research activities, and particularly in recruitment, it is important to understand the most effective types of strategies and costs associated with these activities.

Identifying strategies to maximise recruitment and retention of practices and patients in a multicentre randomised controlled trial of an intervention to optimise secondary prevention for coronary heart disease in primary care

Background

Recruitment and retention of patients and healthcare providers in randomised controlled trials (RCTs) is important in order to determine the effectiveness of interventions. However, failure to achieve recruitment targets is common and reasons why a particular recruitment strategy works for one study and not another remain unclear. We sought to describe a strategy used in a multicentre RCT in primary care, to report researchers' and participants' experiences of its implementation and to inform future strategies to maximise recruitment and retention.

Methods

In total 48 general practices and 903 patients were recruited from three different areas of Ireland to a RCT of an intervention designed to optimise secondary prevention of coronary heart disease. The recruitment process involved telephoning practices, posting information, visiting practices, identifying potential participants, posting invitations and obtaining consent. Retention involved patients attending reviews and responding to questionnaires and practices facilitating data collection.

Results

We achieved high retention rates for practices (100%) and for patients (85%) over an 18-month intervention period. Pilot work, knowledge of the setting, awareness of change in staff and organisation amongst participant sites, rapid responses to queries and acknowledgement of practitioners' contributions were identified as being important. Minor variations in protocol and research support helped to meet varied, complex and changing individual needs of practitioners and patients and encouraged retention in the trial. A collaborative relationship between researcher and practice staff which required time to develop was perceived as vital for both recruitment and retention.

Conclusion

Recruiting and retaining the numbers of practices and patients estimated as required to provide findings with adequate power contributes to increased confidence in the validity and generalisability of RCT results. A continuous dynamic process of monitoring progress within trials and tailoring strategies to particular circumstances, whilst not compromising trial protocols, should allow maximal recruitment and retention.

Trial registration

ISRCTN24081411

A multistep recruitment strategy to a participant-intensive clinical trial

Adequate access to well-informed study participants is key to rapid recruitment and retention to randomized controlled clinical trials (RCTs). We describe a novel seven-step recruitment process for enrolling participants in a recently completed drug and exercise RCT in fibromyalgia. The majority decided not to participate during the screening process. Approximately 7% dropped out after beginning the intervention. All participants were enrolled within 14 months, which was 21 months ahead of the projected timeline. We suggest that this strategy ultimately decreased costs, made efficient use of research staff, and provided a consistent message to participants about the RCT.

Drug treatment for faecal incontinence in adults

BACKGROUND

Faecal incontinence is a common symptom which causes significant distress and reduction in quality of life. Available treatment options for faecal incontinence include conservative treatments (biofeedback, pelvic floor muscle training, dietary manipulation or drug therapy) or surgical treatments (e.g. sphincter repair, post anal repair, neosphincter). Drug treatment is often given either alone or in combination with other treatment modalities.

OBJECTIVES

To assess the effects of drug therapy for the treatment of faecal incontinence. In particular, to assess the effects of individual drugs relative to placebo or other drugs, and to compare drug therapy with other treatment modalities.

SEARCH STRATEGY

We searched the Cochrane Incontinence Group trials register (January 2003) and the reference lists of relevant articles. Date of the most recent search: January 2003.

SELECTION CRITERIA

All randomised or quasi-randomised controlled trials of the use of pharmacological agents for the treatment of faecal incontinence in adults.

DATA COLLECTION AND ANALYSIS

Working independently, reviewers selected studies from the literature, assessed the methodological quality of each trial, and extracted data.

MAIN RESULTS

Eleven trials were identified for inclusion in this review. Nine trials were of cross-over design. Seven trials included only people with faecal incontinence related to liquid stool (either chronic diarrhoea or following ileoanal pouch surgery). Three trials (total 58 participants) compared topical phenylephrine gel with placebo. Two trials (56 participants) compared loperamide with placebo. One trial (11 participants) compared loperamide oxide with placebo. One trial (15 participants) compared diphenoxylate plus atropine with placebo. One trial (17 participants) compared sodium valproate with placebo. One trial (30 participants) compared loperamide with codeine with diphenoxylate plus atropine. Two further trials (total 265 participants) assessed the use of lactulose in elderly people.No studies comparing drugs with other treatment modalities were identified. There was limited evidence that antidiarrhoeal drugs and drugs which enhance anal sphincter tone may reduce faecal incontinence in patients with liquid stools. However, the trials were small and of short duration.

REVIEWER'S CONCLUSIONS

The small number of trials identified for this review assessed several different drugs in a variety of patient populations. The focus of most of the included trials was on the treatment of diarrhoea, rather than faecal incontinence. There is little evidence to guide clinicians in the selection of drug therapies for faecal incontinence. Larger, well-designed controlled trials, which include clinically important outcome measures, are required.