Predictors of discontinuing overactive bladder medications.

OBJECTIVE: To identify predictors of self-reported discontinuation of overactive bladder (OAB) medication using a three-phase survey. PATIENTS AND METHODS: In January 2005, a phase 1 survey was sent to 260 000 households in the USA to assess the prevalence of OAB symptom bother, treatment patterns and healthcare consulting behaviour. In July 2005, a detailed phase 2 follow-up survey was sent to 6577 phase 1 respondents who had used one or more OAB medications within the 12 months before phase 1; the phase 2 survey included questions about respondents' sociodemographic characteristics, general health status, OAB symptom bother, healthcare consulting behaviour, beliefs about OAB and treatment options, and medication usage. Six months later, a phase 3 survey was sent to 3387 phase-2 respondents who were persistent with OAB medication or had discontinued within <18 months of phase 2; the phase 3 survey measured the same variables as phase 2. Only phase 3 respondents who were persistent with OAB medication at phase 2 were included in the analyses reported here. Assessed were the proportions of respondents who were still persistent with OAB medication at phase 3 and who discontinued OAB medication between phases 2 and 3. The variables measured during the phase 2 survey were screened as potential predictors of discontinuation at phase 3 using univariate analysis and then assessed using multivariate logistic regression. RESULTS: Among 2838 respondents at phase 3 (84% response rate), 1194 had recently discontinued and 1644 were persistent with medication at phase 2. Among phase-3 respondents who were persistent at phase 2, 1040 (66%) continued to be persistent at phase 3, 280 (18%) had discontinued between phases 2 and 3, and 261 (17%) had switched medication between phases 2 and 3; 63 respondents had missing prescription information at phase 3. Predictors of discontinuing at phase 3 included smoking (odds ratio 1.80; 95% confidence interval 1.15-2.83; P = 0.010), not knowing whether treating bladder problems requires multiple daily doses of medication (1.71, 1.10-2.67; P = 0.018), believing (2.11, 1.34-3.33; P = 0.001) or not knowing (1.76, 1.23-2.52; P = 0.002) whether adverse effects of OAB medications are often severe, and being bothered 'quite a bit or more' by a sudden urge to urinate (1.54, 1.05-2.26; P = 0.028). Respondents taking two or more medications were less likely to discontinue (odds ratio 0.45-0.58; P < 0.05). CONCLUSION: Persistence with OAB medications might be improved by addressing predictors of discontinuation in the management of OAB, by proactively informing patients about the severity of antimuscarinic adverse effects, and dosing regimens. Bother associated with the key OAB symptom, urgency, is a predictor of discontinuation of treatment.

Challenges for managing overactive bladder and guidance for patient support.

OBJECTIVE: Describe challenges to improving management of overactive bladder (OAB) outcomes and summarize research findings on critical success factors for supporting OAB treatment. STUDY DESIGN: A multidisciplinary team collected primary and secondary data, including an OAB-specific survey; a literature review; and an expert panel discussion. METHODS: A US survey of patients who were prescribed antimuscarinics included topics related to OAB, such as reasons for medication discontinuation. The PubMed database was searched for articles published in the past 10 years on OAB treatment and adherence, and additional publications were reviewed related to health behavior change models. An expert panel reviewed findings and provided perspective. RESULTS: The survey (n = 5392) showed that, among patients discontinuing OAB medications, 45.4% reported unmet treatment expectations as the reason for discontinuation. Literature review findings supported intervention at the beginning of OAB treatment, specific messages to increase treatment adherence, and involving the healthcare stakeholders most trusted by patients. Implications of OAB patient support were drawn from reviews of the Transtheoretical Model, the Health Belief Model, and social learning theory. The expert panel highlighted desirable attributes of OAB patient education delivered in the medical care setting. CONCLUSION: Challenges to improving OAB symptom burden and outcomes include underdiagnosis, undertreatment, and patient nonadherence with medications. Patient support of medication adherence may be enhanced by simultaneously supporting the use of nonpharmaceutical lifestyle modifications and behavioral interventions. Healthcare providers acknowledge the need for patient education but lack the time and resources to deliver interventions or monitor patients' progress outside the medical office. Patient support may be achieved through external programs that complement patient-physician interactions.

Patient medication adherence: the forgotten aspect of biologics.

The full benefit of biologic therapies isn't reached and quality of life is compromised if patients don't adhere to their medication regimen. Are adherence interventions in order?