Clinical trialNCT00600756CompletedPhase 3Interventional

Comparison of the Subjective Well-being and Tolerability of Quetiapine XR to Risperidone

SponsorAstraZenecaEnrollment798Schizophrenic Disorders

View the registry record on ClinicalTrials.gov

Summary

The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

Martin Brecher, MSD
AstraZeneca
Study Director
clinicaltrials.gov ↗
Prof Naber, MD
Klinikum Eppendorf
Principal Investigator
clinicaltrials.gov ↗

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

116 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

Belgium

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Assebroek, Belgium, Belgium
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Hasselt, Belgium, Belgium
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Liège, Belgium, Belgium
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Montignies-sur-Sambre, Belgium, Belgium
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Roeselare, Belgium, Belgium
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Sint-Denijs-Westrem, Belgium
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Tournai, Belgium

Brazil

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Fortaleza, Ceará, Brazil
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Salvador, Estado de Bahia, Brazil
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Aparecida de Goiânia, Goiás, Brazil
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Belo Horizonte, Minas Gerais, Brazil
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Curitiba, Paraná, Brazil
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Recife, Pernambuco, Brazil
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Porto Alegre, Rio Grande do Sul, Brazil
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Rio de Janeiro, Rio de Janeiro, Brazil
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Itapira, São Paulo, Brazil
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Ribeirão Preto, São Paulo, Brazil
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Sorocaba, São Paulo, Brazil
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São Paulo, São Paulo, Brazil
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Botucatu, Brazil

Bulgaria

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Cerova Koria Village, Veliko Tarnovo, Bulgaria
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Pazardzhik, Bulgaria
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Pleven, Bulgaria
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Plovdiv, Bulgaria
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Sofia, Bulgaria
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Stara Zagora, Bulgaria
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Varna, Bulgaria

Costa Rica

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Barrio Los Yoses, Provincia de San José, Costa Rica
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Curridabat, Provincia de San José, Costa Rica
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Guadalupe, Provincia de San José, Costa Rica

Finland

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Helsinki, Finland
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Kitee, Finland
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Kuopio, Finland
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Lapua, Finland
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Pori, Finland
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Raahe, Finland
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Rovaniemi, Finland
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Tampere, Finland
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Turku, Finland

Germany

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Bad Saarow, Germany

76 more sites on the registry record.ClinicalTrials.gov ↗

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 31 Jan 2008
Primary completion: 31 Oct 2009
Completion: 31 Oct 2009
Last update posted: 5 Oct 2012
Registered enrollment: 798
Registry id: NCT00600756

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.