Clinical trial NCT00057135: Improving Antipsychotic Adherence Among Patients With Serious Mental Illness
Official title: Improving Antipsychotic Adherence Among Patients With Schizophrenia
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Schizophrenia
Schizoaffective Disorder
Bipolar Disorder
Keywords: Schizophrenia
Treatment Refusal
Drug Packaging
Reminder Systems
Antipsychotic Agents
Lead sponsor: VA Office of Research and Development
Sponsor class: FED
First posted: 2003-03-28
Enrollment: 150
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: This is a randomized controlled trial examining the effectiveness of a pharmacy-based intervention designed to improve adherence with antipsychotic medications among patients with serious mental illness.

Detailed description: Background: Anti-psychotic medications are an essential component of the treatment of patients with schizophrenia. Unfortunately, pharmacy data indicate that 40% of VA patients with schizophrenia are poorly adherent with their antipsychotics. These patients are at much greater risk for hospitalization. Objectives: We are examining the effectiveness of a practical, pharmacy-based intervention for improving antipsychotic adherence among patients with serious mental illness (SMI). Specifically, we are examining whether this pharmacy-based intervention increases antipsychotic medication adherence and patient satisfaction with care and decreases psychiatric symptoms, and inpatient utilization. We are also examining the relative effectiveness of the pharmacy-based intervention among patients with varying: a) degrees of cognitive limitations, b) degrees of insight into their illness, and c) attitudes towards their medications. Methods: Using pharmacy and administrative data, we are identifying patients with schizophrenia, schizoaffective disorder, or severe bipolar disorder requiring antipsychotic medication who have had poor antipsychotic adherence in the previous year. Patients must have completed at least two outpatient psychiatric visits at one of the study sites. Patients are randomized to: 1) usual care; or 2) the Pharmacy Based intervention. The pharmacy-based intervention consists of usual care plus: 1) "unit-of-use" adherence packaging; 2) a patient education session; 3) refill reminders; and 4) clinician notification of missed fills. In-person patient assessments are conducted at baseline, 6 months, and 12 months following randomization. Medical record and administrative data will be collected at baseline, 6 months, 12 months, and 18 months following randomization. The primary outcome measure is medication adherence as measured by the medication possession ratio and adherence categories which combine pharmacy information with patient self-report and antipsychotic blood levels. Patients� level of psychiatric symptoms, quality of life, and satisfaction are secondary outcome measures. In supplemental analyses, we will compare the effectiveness of the pharmacy-based intervention among subgroups of patients who have varying degrees of cognitive limitations, insight into their illness, and attitudes towards antipsychotic medication. Findings: One hundred and fifty patients have been enrolled in the study. Follow-up rates have been high, with 90% of patients completing 6 month follow up assessments and 80% completing 12 month assessments. In person follow up visits are now complete.

Findings regarding the accuracy of administrative diagnoses of schizophrenia, the accuracy of pharmacy data in identifying patients with poor adherence, and patient factors associated with study recruitment have been presented at national meetings. Main study analyses are now ongoing. 6. Status: Enrollment and inperson-patient follow up are complete. Study analyses are now in progress. Impact: Improving adherence among SMI patients is critical to improving their outcomes. This study examines the effectiveness of a practical, low-cost intervention to for these vulnerable patients.

Eligibility criteria: Inclusion Criteria:

Patients must be adult veterans. Diagnosis of schizophrenia, schizoaffective disorder, or bipolar disorder. At least one active oral antipsychotic prescription. History of poor medication compliance.

Exclusion Criteria:

Have received depot antipsychotics in the last year. Have supervised medication administration. Have not attended a VA outpatient appointment in the past 6 months, and none are scheduled,. Are prescribed Clozapine. Have a fatal illness with a life expectancy less than 2 years.

Primary outcomes:
measure: Medication Possession Ratio at baseline, 1-6 months, 6-12 months, and 12-18 months. Aggregate adherence categories based on MPR, anti-psychotic blood levels (present/not present) and patient self-report at baseline, 6 months, and 12 months.
Secondary outcomes:
measure: Positive and Negative Syndrome Scale for Schizophrenia, Client Satisfaction Questionnaire, Quality of Well-Being Scale. All to be administered at baseline, 6 months, and 12 months after enrollment
Other outcomes:
Locations:
city: San Diego
country: United States
facility: VA San Diego Healthcare System, San Diego, CA
state: California
city: Hines
country: United States
facility: Edward Hines Jr. VA Hospital, Hines, IL
state: Illinois
city: East Orange
country: United States
facility: East Orange Campus of the VA New Jersey Health Care System, East Orange, NJ
state: Massachusetts
city: Ann Arbor
country: United States
facility: VA Ann Arbor Healthcare System, Ann Arbor, MI
state: Michigan
city: Detroit
country: United States
facility: John D. Dingell VA Medical Center, Detroit, MI
state: Rhode Island
Study officials:
affiliation: VA Ann Arbor Healthcare System, Ann Arbor, MI
name: Marcia T. Valenstein, MD AB
role: PRINCIPAL_INVESTIGATOR
affiliation: John D. Dingell VA Medical Center, Detroit, MI
name: John Grabowski, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Kreyenbuhl J, Valenstein M, McCarthy JF, Ganoczy D, Blow FC. Long-term combination antipsychotic treatment in VA patients with schizophrenia. Schizophr Res. 2006 May;84(1):90-9. doi: 10.1016/j.schres.2006.02.023. Epub 2006 May 2.
citation: Milner KK, Valenstein M. A comparison of guidelines for the treatment of schizophrenia. Psychiatr Serv. 2002 Jul;53(7):888-90. doi: 10.1176/appi.ps.53.7.888.
citation: Sajatovic M, Valenstein M, Blow FC, Ganoczy D, Ignacio RV. Treatment adherence with antipsychotic medications in bipolar disorder. Bipolar Disord. 2006 Jun;8(3):232-41. doi: 10.1111/j.1399-5618.2006.00314.x.
citation: Sajatovic M, Blow FC, Kales HC, Valenstein M, Ganoczy D, Ignacio RV. Age comparison of treatment adherence with antipsychotic medications among individuals with bipolar disorder. Int J Geriatr Psychiatry. 2007 Oct;22(10):992-8. doi: 10.1002/gps.1777.
citation: Kreyenbuhl JA, Valenstein M, McCarthy JF, Ganoczy D, Blow FC. Long-term antipsychotic polypharmacy in the VA health system: patient characteristics and treatment patterns. Psychiatr Serv. 2007 Apr;58(4):489-95. doi: 10.1176/ps.2007.58.4.489.
citation: Valenstein M, Ganoczy D, McCarthy JF, Myra Kim H, Lee TA, Blow FC. Antipsychotic adherence over time among patients receiving treatment for schizophrenia: a retrospective review. J Clin Psychiatry. 2006 Oct;67(10):1542-50. doi: 10.4088/jcp.v67n1008.
citation: Sajatovic M, Valenstein M, Blow F, Ganoczy D, Ignacio R. Treatment adherence with lithium and anticonvulsant medications among patients with bipolar disorder. Psychiatr Serv. 2007 Jun;58(6):855-63. doi: 10.1176/ps.2007.58.6.855.
citation: Valenstein M, Kavanagh J, Lee T, Reilly P, Dalack GW, Grabowski J, Smelson D, Ronis DL, Ganoczy D, Woltmann E, Metreger T, Wolschon P, Jensen A, Poddig B, Blow FC. Using a pharmacy-based intervention to improve antipsychotic adherence among patients with serious mental illness. Schizophr Bull. 2011 Jul;37(4):727-36. doi: 10.1093/schbul/sbp121. Epub 2009 Nov 21.
citation: Pfeiffer PN, Szymanski B, Dhawan N, Difranco D, Valenstein M, Zivin K. Is there an "unhealthy volunteer effect" in mental health outpatient research? Psychiatry Res. 2010 Apr 30;176(2-3):224-8. doi: 10.1016/j.psychres.2009.07.016. Epub 2010 Feb 1.