Comparing Antipsychotic Medications in LBD Over Time

Trial statusRecruiting
Trial phasePhase 4
Trial typeInterventional
Biological sexAll
AgeNot listed
SponsorThe University of Texas Health Science Center at San Antonio

About this trial

The primary objective of this study is to determine whether treatment with pimavanserin or quetiapine is associated with a greater improvement in psychosis when used in a routine clinical setting to treat hallucinations and/or delusions due to Parkinson's disease (PD) or dementia with Lewy bodies (DLB) - collectively referred to as Lewy body disease (LBD).

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Patients seen in the neurology clinic at UT Health San Antonio

Diagnosed with psychosis due to PD or DLB

Requiring initiation of an antipsychotic medication

Clinical equipoise between quetiapine and pimavanserin must exist

Disqualifiers

Medical contraindication to either medication

Caregiver unavailable to complete NPI-Q

Currently taking an antipsychotic medication

Prescribing provider unwilling to manage either medication

Trial design

Design model

Parallel

Treatments tested in this trial

  • Pimavanserin

    Drug

    Dosage choice and further medication management will be at the discretion of the treating clinician, per routine clinical practice.

  • Quetiapine

    Drug

    Dosage choice and further medication management will be at the discretion of the treating clinician, per routine clinical practice.

Treatment groups

94 Participants
are divided into 2 treatment groups
Group A: quetiapineActive comparator 1 intervention
Group B: pimavanserinActive comparator 1 intervention

Trial outcomes

Primary outcomes

1

Neuropsychiatry Inventory Questionnaire (NPI-Q), Hallucinations + Delusions (H+D)

Change in the Hallucinations + Delusions sub-score of the neuropsychiatric inventory questionnaire. Each NPI-Q item is scored by severity (1-3), and distress to caregiver (0-5), then added together (range 0-8) with a higher score indicating greater severity.

Time frame
Baseline to 6 months

Secondary outcomes

1

Neuropsychiatry Inventory Questionnaire (NPI-Q) total score

Change in the total neuropsychiatric inventory questionnaire score, which includes 12 items, each scored from 0-8 with a higher score indicating more severe symptoms.

Time frame
Baseline to 6 months
2

Neuropsychiatry Inventory Questionnaire (NPI-Q) (anxiety)

Change in the neuropsychiatric inventory questionnaire item for anxiety, scored from 0-8 with a higher score indicating more severe anxiety.

Time frame
Baseline to 6 months
3

Neuropsychiatry Inventory Questionnaire (NPI-Q) (agitation)

Change in the neuropsychiatric inventory questionnaire for agitation, scored from 0-8 with a higher score indicating more severe agitation.

Time frame
Baseline to 6 months
4

Neuropsychiatry Inventory Questionnaire (NPI-Q) (nighttime behaviors)

Change in the neuropsychiatric inventory questionnaire for sleep disturbance, scored from 0-8 with a higher score indicating more severe sleep disturbances.

Time frame
Baseline to 6 months

Other outcomes

1

Medication out-of-pocket cost

Amount of out of pocket costs spent on medications during the study

Time frame
Baseline to 6 months
2

NPI-Q caregiver portion

Change in the total of the caregiver distress items of the neuropsychiatric inventory. The scale contains 12 items, each scored from 0-5 (least to most distress). Possible scores Range from 0-60 with a lower score indicating less caregiver distress

Time frame
Baseline to 6 months
3

Patient contact

Number of between visit patient encounters (phone, EMR messages)

Time frame
Baseline to 6 months

Sponsors and contacts

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