This study is completed in Italy. It is testing clozapine 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.
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 dateJanuary 2003
Recruitment status
Completed
Enrollment listed in the registry
147
Sponsor
Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Sponsor type
Other organization
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
Italy
Age range
Over 18 Years
Official registry ID
NCT00649844
Official title
Double Blind, Double-Dummy Multicenter, Parallel Group Comparison Of The Efficacy And The Tolerability Of Ziprasidone Vs. Clozapine In Schizophrenic Patients Who Are Refractory And/Or Intolerant To Antipsychotic Therapy
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.
Country not listed · 1 site
Pfizer Investigational Site
Site status: Not listed — confirm with the team
Italy · 21 sites
Pfizer Investigational Site
Città di Castello, Perugia
Site status: Not listed — confirm with the team
Pfizer Investigational Site
Bassano del Grappa, Vicenza
Site status: Not listed — confirm with the team
Pfizer Investigational Site
Bari
Site status: Not listed — confirm with the team
Pfizer Investigational Site
Brescia
Site status: Not listed — confirm with the team
Pfizer Investigational Site
Cagliari
Site status: Not listed — confirm with the team
Pfizer Investigational Site
Cagliari
Site status: Not listed — confirm with the team
Pfizer Investigational Site
Catania
Site status: Not listed — confirm with the team
Pfizer Investigational Site
Florence
Site status: Not listed — confirm with the team
Pfizer Investigational Site
Guardiagrele (CH)
Site status: Not listed — confirm with the team
Pfizer Investigational Site
Messina
Site status: Not listed — confirm with the team
Pfizer Investigational Site
Montichiari (brescia)
Site status: Not listed — confirm with the team
Pfizer Investigational Site
Naples
Site status: Not listed — confirm with the team
Pfizer Investigational Site
Parma
Site status: Not listed — confirm with the team
Pfizer Investigational Site
Reggio Calabria
Site status: Not listed — confirm with the team
Pfizer Investigational Site
Roma
Site status: Not listed — confirm with the team
Pfizer Investigational Site
Roma
Site status: Not listed — confirm with the team
Pfizer Investigational Site
Sassari
Site status: Not listed — confirm with the team
Pfizer Investigational Site
Siena
Site status: Not listed — confirm with the team
Pfizer Investigational Site
Torino
Site status: Not listed — confirm with the team
Pfizer Investigational Site
Trieste
Site status: Not listed — confirm with the team
Pfizer Investigational Site
Verona
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: NCT00649844. 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 Clozapine, Ziprasidone. 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 Pfizer's Upjohn has merged with Mylan to form Viatris Inc., which appears to be another type of organization. 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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This EU register entry describes an interventional medicine trial, designed to assign participants a study treatment. The protocol sets out the treatment, eligibility criteria and assessments. Check the source details below for country statuses and any transfer to CTIS.
This EU register entry describes an interventional medicine trial, designed to assign participants a study treatment. The protocol sets out the treatment, eligibility criteria and assessments. Check the source details below for country statuses and any transfer to CTIS.