This study is completed in the United States, in Bulgaria, in China, .... 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 Bulgaria, in China, and in Czechia.
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
604
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, Bulgaria, China, ...
Age range
Over 18 Years
Official registry ID
NCT01235559
Official title
Phase III, Multi-center, Randomized, 12-week, Double-blind, Parallel-group, Placebo-controlled Study to Evaluate the Efficacy and Safety of RO4917838 in Patients With Sub-optimally Controlled Symptoms of Schizophrenia Treated With Antipsychotics Followed by a 40-week Double-blind, Parallel-group, Placebo-controlled 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.
Bulgaria · 8 sites
Burgas
Burgas
Site status: Not listed — confirm with the team
Kazanlak
Kazanlak
Site status: Not listed — confirm with the team
Novi Iskar
Novi Iskar
Site status: Not listed — confirm with the team
Pazardzhik
Pazardzhik
Site status: Not listed — confirm with the team
Plovdiv
Plovdiv
Site status: Not listed — confirm with the team
Radnevo
Radnevo
Site status: Not listed — confirm with the team
Rousse
Rousse
Site status: Not listed — confirm with the team
Sofia
Sofia
Site status: Not listed — confirm with the team
China · 16 sites
Baoding
Baoding
Site status: Not listed — confirm with the team
Beijing
Beijing
Site status: Not listed — confirm with the team
Beijing
Beijing
Site status: Not listed — confirm with the team
Beijing
Beijing
Site status: Not listed — confirm with the team
Changsha
Changsha
Site status: Not listed — confirm with the team
Chengdu
Chengdu
Site status: Not listed — confirm with the team
GuangzhouGuangdong
GuangzhouGuangdong
Site status: Not listed — confirm with the team
Hangzhou
Hangzhou
Site status: Not listed — confirm with the team
Kunming
Kunming
Site status: Not listed — confirm with the team
Nanjing
Nanjing
Site status: Not listed — confirm with the team
Shanghai
Shanghai
Site status: Not listed — confirm with the team
Shanghai
Shanghai
Site status: Not listed — confirm with the team
Wuhan
Wuhan
Site status: Not listed — confirm with the team
Wuxi
Wuxi
Site status: Not listed — confirm with the team
Xi'an
Xi'an
Site status: Not listed — confirm with the team
Xi'an
Xi'an
Site status: Not listed — confirm with the team
Czechia · 8 sites
Brno
Brno
Site status: Not listed — confirm with the team
Liberec
Liberec
Site status: Not listed — confirm with the team
Mělník
Mělník
Site status: Not listed — confirm with the team
Pilsen
Pilsen
Site status: Not listed — confirm with the team
Prague
Prague
Site status: Not listed — confirm with the team
Prague
Prague
Site status: Not listed — confirm with the team
Praha 8 - Bohnice
Praha 8 - Bohnice
Site status: Not listed — confirm with the team
Sternberk
Sternberk
Site status: Not listed — confirm with the team
Italy · 9 sites
Bari
Bari, Apulia
Site status: Not listed — confirm with the team
Naples
Naples, Campania
Site status: Not listed — confirm with the team
Brescia
Brescia, Lombardy
Site status: Not listed — confirm with the team
Milan
Milan, Lombardy
Site status: Not listed — confirm with the team
Milan
Milan, Lombardy
Site status: Not listed — confirm with the team
Turin
Turin, Piedmont
Site status: Not listed — confirm with the team
Pisa
Pisa, Tuscany
Site status: Not listed — confirm with the team
Pisa
Pisa, Tuscany
Site status: Not listed — confirm with the team
Padova
Padova, Veneto
Site status: Not listed — confirm with the team
Japan · 26 sites
Chiba
Chiba
Site status: Not listed — confirm with the team
Funabashi-shi
Funabashi-shi
Site status: Not listed — confirm with the team
Gunma
Gunma
Site status: Not listed — confirm with the team
Hiroshima
Hiroshima
Site status: Not listed — confirm with the team
Hokkaido
Hokkaido
Site status: Not listed — confirm with the team
Kanzaki-gun
Kanzaki-gun
Site status: Not listed — confirm with the team
Kita-ku
Kita-ku
Site status: Not listed — confirm with the team
Kitakyushu-shi
Kitakyushu-shi
Site status: Not listed — confirm with the team
Kochi
Kochi
Site status: Not listed — confirm with the team
Koshi-shi
Koshi-shi
Site status: Not listed — confirm with the team
Kumamoto
Kumamoto
Site status: Not listed — confirm with the team
Kurayoshi-shi
Kurayoshi-shi
Site status: Not listed — confirm with the team
Nagoya
Nagoya
Site status: Not listed — confirm with the team
Omuta-shi
Omuta-shi
Site status: Not listed — confirm with the team
Sakaishi
Sakaishi
Site status: Not listed — confirm with the team
Sapporo
Sapporo
Site status: Not listed — confirm with the team
Sapporo
Sapporo
Site status: Not listed — confirm with the team
Sendai
Sendai
Site status: Not listed — confirm with the team
Shirakawa-shi
Shirakawa-shi
Site status: Not listed — confirm with the team
Tokyo
Tokyo
Site status: Not listed — confirm with the team
Tokyo
Tokyo
Site status: Not listed — confirm with the team
Toyama
Toyama
Site status: Not listed — confirm with the team
Toyoake-shi
Toyoake-shi
Site status: Not listed — confirm with the team
Yokohama
Yokohama
Site status: Not listed — confirm with the team
Yokohama
Yokohama
Site status: Not listed — confirm with the team
Yokohama
Yokohama
Site status: Not listed — confirm with the team
Russia · 1 site
Saint Petersburg
Saint Petersburg
Site status: Not listed — confirm with the team
United States · 22 sites
Costa Mesa
Costa Mesa, California
Site status: Not listed — confirm with the team
Escondido
Escondido, California
Site status: Not listed — confirm with the team
Granada Hills
Granada Hills, California
Site status: Not listed — confirm with the team
La Jolla
La Jolla, 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
Torrance
Torrance, California
Site status: Not listed — confirm with the team
Lauderhill
Lauderhill, Florida
Site status: Not listed — confirm with the team
Orange City
Orange City, Florida
Site status: Not listed — confirm with the team
Plantation
Plantation, Florida
Site status: Not listed — confirm with the team
Atlanta
Atlanta, Georgia
Site status: Not listed — confirm with the team
Indianapolis
Indianapolis, Indiana
Site status: Not listed — confirm with the team
Flowood
Flowood, Mississippi
Site status: Not listed — confirm with the team
Las Vegas
Las Vegas, Nevada
Site status: Not listed — confirm with the team
Buffalo
Buffalo, New York
Site status: Not listed — confirm with the team
New York
New York, New York
Site status: Not listed — confirm with the team
Rochester
Rochester, New York
Site status: Not listed — confirm with the team
Durham
Durham, North Carolina
Site status: Not listed — confirm with the team
Scranton
Scranton, Pennsylvania
Site status: Not listed — confirm with the team
Austin
Austin, Texas
Site status: Not listed — confirm with the team
Irving
Irving, Texas
Site status: Not listed — confirm with the team
Salt Lake City
Salt Lake City, Utah
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: NCT01235559. 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] level 1, bitopertin [RO4917838] level 2. 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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