SPD489 as Adjunctive Treatment in Adults With Negative Symptoms of Schizophrenia

NCT ID: NCT01234298

Last Updated: 2021-06-03

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

WITHDRAWN

Clinical Phase

PHASE3

Study Classification

INTERVENTIONAL

Study Start Date

2012-01-27

Study Completion Date

2014-02-24

Brief Summary

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To assess the safety and efficacy of SPD489 low-dose and high-dose treatment groups to placebo when given as adjunctive therapy to antipsychotic medication in clinically stable adults with persistent predominant negative symptoms of schizophrenia.

Detailed Description

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Conditions

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Negative Symptoms of Schizophrenia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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SPD489 Low-Dose

Group Type EXPERIMENTAL

SPD489 Low-Dose

Intervention Type DRUG

SPD489 20, 30, or 40 mg capsules taken once-daily for up to 26 weeks

SPD489 High-Dose

Group Type EXPERIMENTAL

SPD489 High-Dose

Intervention Type DRUG

SPD489 50, 60, or 70 mg capsules taken once-daily for up to 26 weeks

Placebo

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Placebo capsule taken once-daily for up to 26 weeks

Interventions

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SPD489 Low-Dose

SPD489 20, 30, or 40 mg capsules taken once-daily for up to 26 weeks

Intervention Type DRUG

SPD489 High-Dose

SPD489 50, 60, or 70 mg capsules taken once-daily for up to 26 weeks

Intervention Type DRUG

Placebo

Placebo capsule taken once-daily for up to 26 weeks

Intervention Type DRUG

Other Intervention Names

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Vyvanse, Lisdexamfetamine dimesylate, LDX Vyvanse, Lisdexamfetamine dimesylate, LDX

Eligibility Criteria

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Inclusion Criteria

* Subject has diagnosis of schizophrenia for at least 2 years
* Subject has persistent predominant negative symptoms
* Subject has 2 or more persistent predominant negative symptoms (affective flattening, alogia, avolition apathy, and anhedonia-asociality) determined to have been present for at least 6 months
* Subject is maintained on antipsychotic monotherapy or polytherapy with no more than 2 antipsychotic medications
* Subject has been clinically stable and is in the non-acute phase of illness

Exclusion Criteria

* Subject has clinically notable positive symptoms
* Subject is considered to be treatment refractory
* Subject has current history of substance abuse/dependance
* Subject is considered a suicide risk or risk to harm others
Minimum Eligible Age

18 Years

Maximum Eligible Age

55 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Shire

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Study Director

Role: STUDY_DIRECTOR

Takeda

Other Identifiers

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SPD489-320

Identifier Type: -

Identifier Source: org_study_id

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