Comparison of out-of-pocket costs and adherence between the two arms of the prospective, randomized abiraterone food effect trial.
Support Care Cancer
; 30(3): 2803-2810, 2022 Mar.
Article
em En
| MEDLINE
| ID: mdl-34845502
ABSTRACT
PURPOSE:
Abiraterone acetate, prescribed for metastatic prostate cancer, has enhanced absorption with food. This effect was exploited in a randomized trial which showed noninferiority of PSA decline for 250 mg abiraterone with a low-fat meal (LOW) compared to 1,000 mg abiraterone fasting (STD). Drug was obtained via patient insurance. Patient out-of-pocket costs and adherence were surveyed.METHODS:
Trial participants were randomized to STD or LOW, and surveys of adherence and out-of-pocket costs were administered at baseline and just before coming off study (follow-up).RESULTS:
Out-of-pocket costs were available from 20 of 36 STD and 21 of 36 LOW patients. Median out-of-pocket costs for a month of drug were $0 (LOW) and $5 (STD); mean costs were $43.61 (LOW) and $393.83 (STD). The two groups did not differ significantly (p = 0.421). Maximum out-of-pocket cost was $1,000 (LOW) and $4,000 (STD). Monthly out-of-pocket costs > $500 were found in 1 LOW and 5 STD patients. For adherence, only 11 STD and 19 LOW patients had questionnaires completed at both baseline and follow-up. STD adherence was 98.18% at baseline and 91.69% at follow-up, differing significantly (p = 0.0078). LOW adherence was 96.52% at baseline and 97.86% at follow-up, not differing significantly (p = 0.3511). Adherence did not correlate with demographics. At follow-up, increasing adherence correlated significantly with decreasing dose (p = 0.013; rho = - 0.458).CONCLUSIONS:
Out-of-pocket costs did not differ significantly in this limited analysis. Adherence was significantly different in STD as the trial progressed, which was not found in LOW. TRIAL REGISTRATION ClinicalTrials.gov NCT01543776; registered March 5, 2012.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Gastos em Saúde
/
Neoplasias de Próstata Resistentes à Castração
Tipo de estudo:
Clinical_trials
/
Health_economic_evaluation
/
Observational_studies
Limite:
Humans
/
Male
Idioma:
En
Revista:
Support Care Cancer
Assunto da revista:
NEOPLASIAS
/
SERVICOS DE SAUDE
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Estados Unidos