Effects of Cerebral Hypoperfusion and Its Reversal on Late-Life Depression
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Purpose
This pilot proposal will test the hypothesis that altered cerebral vessel reactivity and cerebral hypoperfusion (decreased blood flow to the brain) is a core mechanism underlying the relationship between vascular disease and depression in older adults. The long-term objective of this line of research is to: A) determine the relationship between vascular reactivity, cerebral hypoperfusion and the persistence of late-life depression and B) determine if improving cerebral perfusion with angiotensin receptor blockers (ARBs) improves depression outcomes.
| Condition | Intervention | Phase |
|---|---|---|
|
Depression Hypertension |
Drug: Sertraline Drug: Candesartan |
Phase 4 |
| Study Type: | Interventional |
| Study Design: | Allocation: Non-Randomized Endpoint Classification: Efficacy Study Intervention Model: Single Group Assignment Masking: Open Label Primary Purpose: Basic Science |
| Official Title: | Effects of Cerebral Hypoperfusion and Its Reversal on Late-Life Depression |
- MRI Arterial Spin Labeling [ Time Frame: Change in perfusion from baseline to week 8 ] [ Designated as safety issue: No ]MRI arterial spin labeling is a noninvasive approach to measuring cerebral blood flow. This relates to the Phase 1 sertraline arm.
- Montgomery Asberg Depression Rating Scale (MADRS) [ Time Frame: Week 8 ] [ Designated as safety issue: No ]MADRS is a measure of depression severity. This outcome applies to the sertraline Phase 1 arm.
- Quick Inventory of Depressive Symptoms, Self-Rated (QIDS-SR16) [ Time Frame: Week 8 ] [ Designated as safety issue: No ]Self-report measure of depression severity. This applies to the sertraline Phase 1 arm.
- Quick Inventory of Depressive Symptoms, Self-Rated (QIDS-SR16) [ Time Frame: Week 20 ] [ Designated as safety issue: No ]Self-report measure of depression severity. This applies to the candesartan Phase 2 arm.
- Montgomery-Asberg Depression Rating Scale [ Time Frame: Week 20 ] [ Designated as safety issue: No ]MADRS is a measure of depression severity. This outcome applies to the candesartan Phase 2 arm.
- MRI Arterial Spin Labeling [ Time Frame: Change from week 8 to week 20 ] [ Designated as safety issue: No ]MRI arterial spin labeling is a noninvasive approach to measuring cerebral blood flow. This relates to the Phase 2 candesartan arm.
| Estimated Enrollment: | 18 |
| Study Start Date: | February 2015 |
| Estimated Study Completion Date: | February 2015 |
| Estimated Primary Completion Date: | February 2015 (Final data collection date for primary outcome measure) |
| Arms | Assigned Interventions |
|---|---|
|
Experimental: Phase 1: Sertraline
Eight-week trial of sertraline mono therapy, dosing ranging from 50mg- 200mg daily.
|
Drug: Sertraline
50mg - 200mg daily
Other Name: Zoloft
|
|
Experimental: Phase 2: Candesartan
For subjects who do not remit to sertraline, they will receive candesartan for 12 weeks, with doses ranging from 4mg - 32mg daily.
|
Drug: Candesartan
4mg - 32mg daily
Other Name: Atacand
|
Detailed Description:
This study will examine how magnetic resonance imaging (MRI) measures of cerebral perfusion relate to antidepressant response. There are two phases to the study. In the first phase, we will examine how cerebral perfusion is related to response to sertraline, a commonly used antidepressant. In the second phase, we will examine individuals who do not respond to sertraline or other selective serotonin reuptake inhibitors (SSRI). We will examine if candesartan, an ARB, improves depression and if it does so by improving cerebral perfusion.
After providing informed consent, participants will undergo medical and psychiatric screening. Participants determined to be eligible at the screen will proceed to a baseline evaluation, which will include brief cognitive neuropsychological testing and MRI. Participants will then begin open-label sertraline for eight weeks (baseline to week 8). Dosing will begin at 50mg daily and, based on response and tolerability, can increase up to the FDA approved maximum dose of 200mg daily.
After the eight weeks, participants will be re-evaluated and complete another MRI. Those who respond to sertraline and experience remission of their depression will end their study participation. Those who do not experience remission will continue to the phase 2 open-label candesartan arm.
The candesartan arm will last for 12 weeks (week 8 to week 20). Dosing will begin at 4mg daily and can increase to a maximum dose of 32mg, based on tolerability and response. Participants will be monitored closely, and other antihypertensive medications adjusted to avoid low blood pressure. At the end of the 12-week trial, participants will again complete MRI and neuropsychological testing. Their study participation will then end.
Eligibility| Ages Eligible for Study: | 60 Years and older |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Age 60 years or older
- Diagnosis of Major Depressive Disorder, single or recurrent episode, without psychotic features by Diagnostic and Statistical Manual IV Text Revision (DSMIV-TR) criteria
- Presence of hypertension (defined as systolic > 140 or diastolic > 90 or currently receiving antihypertensive therapy)
- Minimum depression severity of ≥ 15 on the Montgomery-Asberg Depression Rating Scale (MADRS)
- Cognitively intact or with mild cognitive deficits, with a minimum score ≥ 23 on the Montreal Cognitive Assessment (MoCA).
Exclusion Criteria:
- Other psychiatric Axis I disorders
- Acute suicidality
- Electroconvulsive therapy in the last 6 months
- Primary neurological disorder, including dementia and stroke
- Significant cardiovascular disease, specifically diagnosis of congestive heart failure, known bilateral renal artery stenosis, symptomatic hypotension, or critical aortic or mitral stenosis
- Myocardial infarction or open-heart surgery in last 6 weeks
- Serum creatinine ≥ 265 micromol /L
- Serum potassium ≥ 5.5 mmol/L
- MRI contraindications
- Known allergy to sertraline or candesartan specifically or known allergy to other SSRIs or ARBs.
- History of prolonged (> 3 weeks) or self-described severe discontinuation syndrome in the past after stopping an antidepressant.
- Current use of an angiotensin receptor blocker
- Current or planned psychotherapy
- Need for continuous oxygen use or any medical disorder where the hypercapnia challenge would be contraindicated or put the subject at increased risk. This would include acute respiratory disease, chronic angina, or other unstable cardiac conditions.
Contacts and Locations| Contact: Dean Holbert | 615-322-1030 | dean.holbert@vanderbilt.edu |
| United States, Tennessee | |
| Vanderbilt Psychiatric Hospital | Not yet recruiting |
| Nashville, Tennessee, United States, 37212 | |
| Contact: Dean Holbert 615-322-1030 dean.holbert@vanderbilt.edu | |
| Principal Investigator: Warren D Taylor, MD, MHSc | |
| Principal Investigator: | Warren D Taylor, MD, MHSc | Vanderbilt University |
More Information
No publications provided
| Responsible Party: | Warren Taylor, Associate Professor of Psychiatry, Vanderbilt University |
| ClinicalTrials.gov Identifier: | NCT01794455 History of Changes |
| Other Study ID Numbers: | VR5642 |
| Study First Received: | February 12, 2013 |
| Last Updated: | February 15, 2013 |
| Health Authority: | United States: Food and Drug Administration |
Keywords provided by Vanderbilt University:
|
Depression Depressive Disorder Geriatrics Hypertension |
Additional relevant MeSH terms:
|
Depression Depressive Disorder Hypertension Behavioral Symptoms Mood Disorders Mental Disorders Vascular Diseases Cardiovascular Diseases Sertraline Candesartan Candesartan cilexetil Antidepressive Agents Psychotropic Drugs |
Central Nervous System Agents Therapeutic Uses Pharmacologic Actions Serotonin Uptake Inhibitors Neurotransmitter Uptake Inhibitors Neurotransmitter Agents Molecular Mechanisms of Pharmacological Action Serotonin Agents Physiological Effects of Drugs Antihypertensive Agents Cardiovascular Agents Angiotensin II Type 1 Receptor Blockers Angiotensin Receptor Antagonists |
ClinicalTrials.gov processed this record on May 22, 2013