This study is completed in the United States, in Canada, in Brazil, .... It is testing RO4917838 for schizophrenia.
SchizophreniaDrugOver 18 Years
The public registry lists this study as not currently recruiting. This page remains available for information. Check the official record for the latest status and explore other recruiting studies.
Then choose your country and confirm availability with each study site.
In plain English
Key information made simple
What is this study testing?
This study is testing whether RO4917838 may be useful for adults experiencing schizophrenia.
What would participation involve?
Participants may receive RO4917838, attend study visits with the research team. The protocol may also involve randomization, placebo, or a comparison group. The registry lists locations in Brazil, in Canada, and in Chile.
Who is it mainly for?
This study appears to be mainly for adults with schizophrenia.
What should you check before joining?
Ask about the dose, safety monitoring, and possible side effects, whether there is placebo, randomization, or a comparison group, how many visits or travel steps are needed, the exact eligibility criteria.
Your next step
Check the study details
Check the official source, then confirm these points with the research team.
Where are visits, can any be remote, and how much time is needed?
Costs and support
What costs, reimbursement or compensation apply?
Before joining
Questions to ask before joining
What are the exact eligibility criteria, and what could exclude someone?
How many visits, assessments, or follow-ups are expected, and over what period?
What risks, side effects, practical burdens, or alternatives should be understood first?
Who should be contacted to confirm locations, timing, compensation, and next steps?
Study clarity
Things to check before joining
Study start dateDecember 2010
Recruitment status
Completed
Enrollment listed in the registry
624
Sponsor
Hoffmann-La Roche
Sponsor type
Unknown or unclear
Study type
Drug
Intervention type
Medication / drug
Study phase
Phase 3Usually a larger study designed to confirm effectiveness and safety in a broader group.
Locations
United States, Canada, Brazil, ...
Age range
Over 18 Years
Official registry ID
NCT01192906
Official title
A Phase III, Multi-center, Randomized, 24 Week, Double-blind, Parallel-group, Placebo-controlled Study to Evaluate Efficacy and Safety of RO4917838 in Stable Patients With Persistent, Predominant Negative Symptoms of Schizophrenia Treated With Antipsychotics Followed by a 28 Week, Double-blind Treatment Period.
Check recruitment and locations
Recruitment checked against the registry by HopeStage on . Registry information can change. Always confirm availability with the research team.
The overall study status can differ from each site's status. Open a country to see its locations and their registry status.
Brazil · 9 sites
Salvador
Salvador, Estado de Bahia
Site status: Not listed — confirm with the team
Goiânia
Goiânia, Goiás
Site status: Not listed — confirm with the team
Belo Horizonte
Belo Horizonte, Minas Gerais
Site status: Not listed — confirm with the team
Curitiba
Curitiba, Paraná
Site status: Not listed — confirm with the team
Rio de Janeiro
Rio de Janeiro, Rio de Janeiro
Site status: Not listed — confirm with the team
Pelotas
Pelotas, Rio Grande do Sul
Site status: Not listed — confirm with the team
Porto Alegre
Porto Alegre, Rio Grande do Sul
Site status: Not listed — confirm with the team
São Paulo
São Paulo, São Paulo
Site status: Not listed — confirm with the team
São Paulo
São Paulo, São Paulo
Site status: Not listed — confirm with the team
Canada · 11 sites
Calgary
Calgary, Alberta
Site status: Not listed — confirm with the team
Medicine Hat
Medicine Hat, Alberta
Site status: Not listed — confirm with the team
Vancouver
Vancouver, British Columbia
Site status: Not listed — confirm with the team
Victoria
Victoria, British Columbia
Site status: Not listed — confirm with the team
Halifax
Halifax, Nova Scotia
Site status: Not listed — confirm with the team
Burlington
Burlington, Ontario
Site status: Not listed — confirm with the team
Hamilton
Hamilton, Ontario
Site status: Not listed — confirm with the team
Mississauga
Mississauga, Ontario
Site status: Not listed — confirm with the team
Montreal
Montreal, Quebec
Site status: Not listed — confirm with the team
Montreal
Montreal, Quebec
Site status: Not listed — confirm with the team
Verdun
Verdun, Quebec
Site status: Not listed — confirm with the team
Chile · 7 sites
San Miguel
San Miguel
Site status: Not listed — confirm with the team
Santiago
Santiago
Site status: Not listed — confirm with the team
Santiago
Santiago
Site status: Not listed — confirm with the team
Santiago
Santiago
Site status: Not listed — confirm with the team
Santiago
Santiago
Site status: Not listed — confirm with the team
Santiago
Santiago
Site status: Not listed — confirm with the team
Valdivia
Valdivia
Site status: Not listed — confirm with the team
Germany · 8 sites
Berlin
Berlin
Site status: Not listed — confirm with the team
Bochum
Bochum
Site status: Not listed — confirm with the team
Cologne
Cologne
Site status: Not listed — confirm with the team
Freiburg im Breisgau
Freiburg im Breisgau
Site status: Not listed — confirm with the team
Hamburg
Hamburg
Site status: Not listed — confirm with the team
München
München
Site status: Not listed — confirm with the team
München
München
Site status: Not listed — confirm with the team
Nuremberg
Nuremberg
Site status: Not listed — confirm with the team
Latvia · 3 sites
Daugovpils
Daugovpils
Site status: Not listed — confirm with the team
Jelgava
Jelgava
Site status: Not listed — confirm with the team
Liepāja
Liepāja
Site status: Not listed — confirm with the team
Lithuania · 7 sites
Kaunas
Kaunas
Site status: Not listed — confirm with the team
Kaunas
Kaunas
Site status: Not listed — confirm with the team
Kaunas
Kaunas
Site status: Not listed — confirm with the team
Kaunas
Kaunas
Site status: Not listed — confirm with the team
Šilutė
Šilutė
Site status: Not listed — confirm with the team
Vilnius
Vilnius
Site status: Not listed — confirm with the team
Vilnius
Vilnius
Site status: Not listed — confirm with the team
Netherlands · 3 sites
Assen
Assen
Site status: Not listed — confirm with the team
Groningen
Groningen
Site status: Not listed — confirm with the team
Groningen
Groningen
Site status: Not listed — confirm with the team
Poland · 9 sites
Choroszcz
Choroszcz
Site status: Not listed — confirm with the team
Kielce
Kielce
Site status: Not listed — confirm with the team
Lublin
Lublin
Site status: Not listed — confirm with the team
Lublin
Lublin
Site status: Not listed — confirm with the team
Lublin
Lublin
Site status: Not listed — confirm with the team
Piekary Śląskie
Piekary Śląskie
Site status: Not listed — confirm with the team
Skorzewo
Skorzewo
Site status: Not listed — confirm with the team
Tuszyn
Tuszyn
Site status: Not listed — confirm with the team
Warsaw
Warsaw
Site status: Not listed — confirm with the team
Slovakia · 5 sites
Bojnice
Bojnice
Site status: Not listed — confirm with the team
Bratislava
Bratislava
Site status: Not listed — confirm with the team
Bratislava
Bratislava
Site status: Not listed — confirm with the team
Rimavská Sobota
Rimavská Sobota
Site status: Not listed — confirm with the team
Svidník
Svidník
Site status: Not listed — confirm with the team
Spain · 8 sites
Barcelona
Barcelona, Barcelona
Site status: Not listed — confirm with the team
Barcelona
Barcelona, Barcelona
Site status: Not listed — confirm with the team
Barcelona
Barcelona, Barcelona
Site status: Not listed — confirm with the team
Madrid
Madrid, Madrid
Site status: Not listed — confirm with the team
Madrid
Madrid, Madrid
Site status: Not listed — confirm with the team
Oviedo
Oviedo, Principality of Asturias
Site status: Not listed — confirm with the team
Salamanca
Salamanca, Salamanca
Site status: Not listed — confirm with the team
Zamora
Zamora, Zamora
Site status: Not listed — confirm with the team
Taiwan · 7 sites
Hualian Town
Hualian Town
Site status: Not listed — confirm with the team
Kaohsiung City
Kaohsiung City
Site status: Not listed — confirm with the team
Taichung
Taichung
Site status: Not listed — confirm with the team
Tainan
Tainan
Site status: Not listed — confirm with the team
Tainan County
Tainan County
Site status: Not listed — confirm with the team
Taipei
Taipei
Site status: Not listed — confirm with the team
Taipei
Taipei
Site status: Not listed — confirm with the team
Türkiye · 6 sites
Ankara
Ankara
Site status: Not listed — confirm with the team
Diyarbakır
Diyarbakır
Site status: Not listed — confirm with the team
Gaziantep
Gaziantep
Site status: Not listed — confirm with the team
Istanbul
Istanbul
Site status: Not listed — confirm with the team
Istanbul
Istanbul
Site status: Not listed — confirm with the team
Manisa
Manisa
Site status: Not listed — confirm with the team
Ukraine · 9 sites
Dnipropetrovsk
Dnipropetrovsk
Site status: Not listed — confirm with the team
Donetsk
Donetsk
Site status: Not listed — confirm with the team
Glevakha Kyviv Region
Glevakha Kyviv Region
Site status: Not listed — confirm with the team
Kharkiv
Kharkiv
Site status: Not listed — confirm with the team
Kyiv
Kyiv
Site status: Not listed — confirm with the team
Kyiv
Kyiv
Site status: Not listed — confirm with the team
Lviv
Lviv
Site status: Not listed — confirm with the team
Odesa
Odesa
Site status: Not listed — confirm with the team
Vinnytsia
Vinnytsia
Site status: Not listed — confirm with the team
United States · 21 sites
Carson
Carson, California
Site status: Not listed — confirm with the team
Oceanside
Oceanside, California
Site status: Not listed — confirm with the team
San Diego
San Diego, California
Site status: Not listed — confirm with the team
San Diego
San Diego, California
Site status: Not listed — confirm with the team
Hartford
Hartford, Connecticut
Site status: Not listed — confirm with the team
Norwalk
Norwalk, Connecticut
Site status: Not listed — confirm with the team
North Miami
North Miami, Florida
Site status: Not listed — confirm with the team
Atlanta
Atlanta, Georgia
Site status: Not listed — confirm with the team
Chicago
Chicago, Illinois
Site status: Not listed — confirm with the team
Hoffman Estates
Hoffman Estates, Illinois
Site status: Not listed — confirm with the team
Joliet
Joliet, Illinois
Site status: Not listed — confirm with the team
Lake Charles
Lake Charles, Louisiana
Site status: Not listed — confirm with the team
Shreveport
Shreveport, Louisiana
Site status: Not listed — confirm with the team
St Louis
St Louis, Missouri
Site status: Not listed — confirm with the team
Omahac
Omahac, Nebraska
Site status: Not listed — confirm with the team
Cedarhurst
Cedarhurst, New York
Site status: Not listed — confirm with the team
Jamaica
Jamaica, New York
Site status: Not listed — confirm with the team
Rochester
Rochester, New York
Site status: Not listed — confirm with the team
Allentown
Allentown, Pennsylvania
Site status: Not listed — confirm with the team
Norristown
Norristown, Pennsylvania
Site status: Not listed — confirm with the team
Philadelphia
Philadelphia, Pennsylvania
Site status: Not listed — confirm with the team
Ask HopeStage to help me review this study
This record does not confirm open recruitment. We can help you understand it and explore other studies.
Study ID: NCT01192906. We help you review the study, but cannot decide medical eligibility.
In practice
For you
Participation may contribute to research. Personal benefit is not guaranteed.
Ask the research team to explain the activities, time commitment, and follow-up involved.
Study sites are listed. Confirm the relevant site and any travel before making plans.
Important
Not medical advice
Information from public sources.
Are you the study sponsor? Contact us to update this page: hi@hopestage.com
FAQ
Questions about this study
What is this study trying to understand?
This study is exploring medication or study treatment for people with schizophrenia. Participants may complete study visits, assessments, or follow-up activities defined by the research team. Direct benefit is not guaranteed. The detailed objective is not always clearly listed in the public registry; the study team can confirm.
Does this study involve a medication?
This appears to be a medication / drug study involving Placebo, bitopertin [RO4917838]. Phase 3 studies are usually larger and aim to confirm effectiveness and safety in a broader group.
Who might this study be for?
This study may concern people with schizophrenia; age range: Over 18 Years. The criteria appear fairly specific, but you should not assume you are eligible. The study team must confirm diagnosis, age, exclusions, available locations, and next steps.
What would I likely need to do?
You may need to take a study treatment and have regular medical follow-up. The listed study locations suggest that at least part of participation may involve a physical site. Ask whether some steps can be done remotely.
What side effects, interactions, or treatment changes should I check?
If the study involves a medication, ask whether it is already approved, experimental, or being tested for a new use. Check possible side effects, interactions with current treatment, dose changes, monitoring, and what happens if you feel worse. For any mental health study, also ask who to contact if you feel worse, whether participation may affect current treatment, whether you can stop, and who confirms eligibility.
Will I need to travel or attend in-person visits?
The listed study locations suggest that at least part of participation may involve a physical site. Ask which sites are open, how many visits are expected, whether any steps can be done remotely, and whether travel costs or compensation are listed.
Who is behind this study?
This study is sponsored by Hoffmann-La Roche, which appears to be unknown or unclear. If available, it can be useful to check the sponsor website, collaborators, investigator affiliation, and the official registry before deciding. HopeStage does not judge the quality of a sponsor or researcher, but helps you identify what to verify.
Can I still join this study?
The public registry lists this study as not currently recruiting. This page remains available for information. Check the official record for the latest status and explore other recruiting studies.
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