Clinical trial NCT03390933: Identifying and Treating Depression in Hemodialysis Patients
Official title: Using Latent Variables and Directly Observed Treatment to Improve the Diagnosis and Management of Depression Among Hemodialysis Patients
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE4
Conditions: Depression
Hemodialysis-Induced Symptom
Lead sponsor: MetroHealth Medical Center
Sponsor class: OTHER
First posted: 2018-01-05
Enrollment: 16
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Intervention model description: The cross-sectional study will involve assessments of depressive symptoms (PHQ-9) and quality of life for 1083 patients. These data will be used to address Aim A. The single arm trial will involve 96 patients with DSM5-confirmed depression.
Primary purpose: TREATMENT

Brief summary: Depression is present in about 20-30% of hemodialysis patients and is associated with morbidity and mortality. However, depression is inadequately diagnosed and treated among dialysis patients. This is due in part to the overlap between depressive symptoms (e.g. appetite change, trouble sleeping, feeling tired) and symptoms related to persistent metabolic derangements in hemodialysis patients (e.g. nausea, nocturnal cramps, feeling washed out after treatment). The overlap between depressive symptoms and dialysis-related complications makes it difficult to diagnose and therefore to treat depression. In addition, prescription of antidepressant medication may increase an already high pill burden and result in poor adherence. Moreover, the evidence base to guide depression treatment among hemodialysis patients is limited. In the investigators' previous work, they developed methods to use latent variables and structural equation modeling to isolate depressive symptoms. Other investigators have demonstrated that directly observed treatment enhances the effectiveness of tuberculosis and HIV treatment.

Investigators now propose a cross-sectional study (Phase 1) followed by a single-arm clinical trial (Phase 2) at 17 dialysis facilities. The cross-sectional study will involve assessments of depressive symptoms (using the PHQ-9 screening instrument) as well as dialysis-related complications, anxiety, and quality of life (Quality of Life Questionnaire) in about 1083 patients. Investigators will then use structural equation modeling to develop and validate a hemodialysis-specific PHQ-9 (hdPHQ-9) that will isolate depressive symptoms. The trial will involve 96 patients with confirmed depression who will be assigned to directly observed weekly antidepressant treatment with fluoxetine. The primary outcome of the trial will be remission of depression at 12 weeks. The trial results will also be used to compare the responsiveness of the PHQ-9 and the hdPHQ-9. Investigators anticipate that the hdPHQ-9 will be a valid and responsive instrument that will isolate depressive symptoms in hemodialysis patients and ultimately improve the screening and diagnosis of depression. Investigators also expect that directly observed weekly fluoxetine treatment will be an effective way to manage depression among hemodialysis patients.

Detailed description: Depression is present in about 20-30% of hemodialysis patients and is associated with morbidity and mortality. However, depression is inadequately diagnosed and treated among dialysis patients. This is due in part to the overlap between depressive symptoms (e.g. appetite change, trouble sleeping, feeling tired) and symptoms related to persistent metabolic derangements in hemodialysis patients (e.g. nausea, nocturnal cramps, feeling washed out after treatment). The overlap between depressive symptoms and dialysis complications makes it difficult to diagnose and therefore to treat depression. In addition, prescription of antidepressant medication may increase an already high pill burden and result in poor adherence. Moreover, the evidence base to guide depression treatment among hemodialysis patients is limited. In the investigators' previous work, they developed methods to use latent variables and structural equation modeling to isolate depressive symptoms. Other investigators have demonstrated that directly observed treatment enhances the effectiveness of tuberculosis and HIV treatment.

Investigators now propose a cross-sectional study (Phase 1) followed by a single-arm clinical trial (Phase 2) at 17 dialysis facilities. The cross-sectional study will involve assessments of depressive symptoms (using the PHQ-9 screening instrument) as well as dialysis-related complications, anxiety, and quality of life (Quality of Life Questionnaire) in about 1083 patients. The investigators will then use structural equation modeling to develop and validate a hemodialysis-specific PHQ-9 (hdPHQ-9) that will isolate depressive symptoms. The trial will involve 96 patients with confirmed depression who will be assigned to directly observed weekly antidepressant treatment with fluoxetine. The primary outcome of the trial will be remission of depression at 12 weeks. The trial results will also be used to compare the responsiveness of the PHQ-9 and the hdPHQ-9.

The investigators anticipate that the hdPHQ-9 will be a valid and responsive instrument that will isolate depressive symptoms from dialysis complications and ultimately improve the screening and diagnosis of depression. They also expect that directly observed weekly fluoxetine treatment will be an effective way to manage depression among hemodialysis patients.

Innovative features of the proposed project include the use of latent variables to address overlap, administration of a long acting weekly antidepressant, and directly observed treatment. The project has the potential not only to improve the diagnosis and management of depression among hemodialysis patients but also to improve their morbidity and mortality. Furthermore, it may serve as a model for future studies to isolate symptoms among overlapping medical conditions.

Aim A. To develop and validate a self-reported depression screening instrument that isolates depressive symptoms from hemodialysis-related complications.

Hypothesis: A hemodialysis-specific PHQ-9 (hdPHQ-9) will isolate depressive symptoms from dialysis complications.

Aim B. To determine the impact of directly observed weekly fluoxetine treatment on remission of depression among hemodialysis patients.

Hypothesis: About half of patients who have directly observed fluoxetine treatment will have remission of depression.

Aim C. To examine the responsiveness of the new depression screening instrument to depression treatment.

Hypothesis: Fluoxetine treatment will be associated with larger improvements in hdPHQ-9 scores than in PHQ-9 scores.

Eligibility criteria: Inclusion Criteria:

* currently on hemodialysis at a CDC dialysis unit
* English speaking
* able to provide informed consent

Exclusion Criteria:

* on hemodialysis for less than 3 months
* comorbid psychotic, bipolar, substance use dependence, Alzheimer's or dementia

Not eligible for Phase II (intervention) if currently on antidepressant medication

Primary outcomes:
measure: To Determine the Impact of Directly Observed Weekly Fluoxetine Treatment on Remission of Depression Among Hemodialysis Patients.
timeFrame: 3 years
Secondary outcomes:
Other outcomes:
Locations:
city: Cleveland
country: United States
facility: MetroHealth Medical Center
state: Ohio
Study officials:
affiliation: MetroHealth Medical Center
name: Ash Seghal, MD
role: PRINCIPAL_INVESTIGATOR
References:
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