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SchizophreniaPhase 3NCT00658645

Efficacy of Bifeprunox in Patients With Schizophrenia

A Phase 3 study testing Bifeprunox and Quetiapine in people with Schizophrenia, run by H. Lundbeck A/S at 38 sites in 8 countries.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The primary purpose of the study is to evaluate the efficacy of bifeprunox in the maintenance phase of schizophrenia compared to placebo. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Schizophrenia
What is being tested?
Bifeprunox and Quetiapine
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
227 participants
Where
38 sitesin 8 countries
Study dates
Mar 2008to Nov 2009
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Main inclusion criteria
  • The subject has a primary diagnosis of schizophrenia
  • The subject experiences clinically significant symptoms
  • The subject's medication remained stable for 8 weeks prior to screening
  • The subject is currently in the post-acute maintenance phase of his/her disease

Who cannot join

  • Main exclusion criteria
  • The subject is at significant risk of suicide
  • The subject is treatment resistant
  • The subject has experienced an acute exacerbation within 8 weeks prior screening
  • The subject is unlikely to comply with the protocol
  • The subject has a current diagnosis or a history of substance abuse

Trial locations and contacts

38 sites in 8 countries.

38 sites in 8 countries

Russia13 sites
  • RU003

    Arkhangelsk, 163060

  • RU017

    Chita, 672090

  • RU001

    Moscow, 115522

  • RU005

    Moscow, 117152

  • RU009

    Saint Petersburg, 190005

  • RU013

    Saint Petersburg, 190005

  • RU012

    Saint Petersburg, 190013

  • RU011

    Saint Petersburg, 191119

  • RU004

    Saint Petersburg, 193019

  • RU010

    Saint Petersburg, 193019

  • RU014

    Saint Petersburg, 193167

  • RU002

    Saratov, 410012

  • RU015

    Tomsk, 634014

Other trials in Russia

Romania9 sites
  • RO004

    Brasov, 500123

  • RO001

    Bucharest, 041914

  • RO002

    Bucharest, 041914

  • RO003

    Bucharest, 041914

  • RO009

    Bucharest, 41914

  • RO008

    Iași, 700265

  • RO005

    Piteşti, 110069

  • RO007

    Sibiu, 550082

  • RO006

    Targoviste, 130081

Other trials in Romania

Thailand4 sites
  • TH002

    Bangkok, 10330

  • TH001

    Bangkok, 10600

  • TH003

    Chiang Mai, 50200

  • TH004

    Chiang Mai, 50200

Other trials in Thailand

Ukraine4 sites
  • UA002

    Hlevakha, 8630

  • UA001

    Kyiv, 02660

  • UA013

    Kyiv, 4655

  • UA012

    Luhansk, 91045

Other trials in Ukraine

Bulgaria2 sites
  • BG002

    Radnevo, 6260

  • BG003

    Radnevo, 6260

Other trials in Bulgaria

China2 sites
  • CN009

    Beijing, 100083

  • CN008

    Beijing, 100088

Other trials in China

Greece2 sites
  • GR001

    Marousi, 15126

  • GR003

    Tripoli, 22100

Other trials in Greece

Taiwan2 sites
  • TW001

    Hualien Town, 970

  • TW003

    Taipei, 115

Other trials in Taiwan

About this study

Official title: A Multinational, Randomised, Double-blind, Fixed-dose, Bifeprunox Study Combining a 12-Week Placebo-controlled, Quetiapine-referenced Phase With a 12-month Quetiapine-controlled Phase in Patients With Schizophrenia

The primary purpose of the study is to evaluate the efficacy of bifeprunox in the maintenance phase of schizophrenia compared to placebo.

Read the detailed description

Schizophrenia is a serious and disabling mental disorder that affects approximately 1% of the world's population. There are a number of antipsychotic drugs in use but none is ideal, in particular because their safety profile is complex and their effectiveness is limited. In particular, after having overcome acute exacerbations many patients continue to experience significant symptoms that prevent an adequate functioning. In the current study, patients suffering from schizophrenia and currently in a post-acute maintenance phase of the disease will be included. Non-treatment resistant patients will be included in the study, since they have partially responded to their current antipsychotic treatment but still have clinically significant symptoms and/or impairment of functioning in their daily life. The study is a 12-month study with an initial 12-week placebo-controlled, quetiapine-referenced phase. After this initial 12-week phase, the patients allocated to placebo will be switched to bifeprunox. In the final non-inferiority analysis of the 12-month data, the results from this study will be combined with the data from a similar study (11916A).

Conditions
Schizophrenia
Being tested
Bifeprunox, Placebo, Quetiapine
Keywords
Schizophrenia, Antipsychotic, Bifeprunox
Medical subject headings
Schizophrenia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • BifeprunoxDrug

    Also called DU 127090

    20 mg daily, encapsulated tablets, orally, 12 months

  • PlaceboDrug

    Encapsulated tablets, orally, 12 weeks

  • QuetiapineDrug

    Also called Seroquel

    600 mg daily, encapsulated tablets, orally, 12 months

Study groups in NCT00658645
Study groupRoleWhat they receive
BifeprunoxExperimentalNot described
Receives: Drug: Bifeprunox
PlaceboPlacebo comparatorNot described
Receives: Drug: Placebo
QuetiapineActive comparatorNot described
Receives: Drug: Quetiapine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The difference in change from baseline to the 12-week time point between bifeprunox and placebo using the Positive and Negative Syndrome Scale (PANSS).

    Measured: 12 weeks

Secondary outcomes (1)
  1. The difference in PANSS score at the 12-month time point between bifeprunox and quetiapine. Also, responder rate, time to response/withdrawal, global clinical assessments (CGI), assessment of depressive symptoms (CDSS) and health economic assessments

    Measured: 12 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 Apr 2008 (estimated)
  2. Study startMar 2008
  3. Primary completionAug 2009
  4. Study completionNov 2009

Why it stopped: Interim analysis showed inadequate efficacy of bifeprunox

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
227 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00658645
Sponsor's protocol ID
11915A
Other IDs
2007-001097-90
Status last verified
Sep 2010
First submitted
9 Apr 2008
Last updated
27 Sep 2010
Results posted
No
Data monitoring committee
No

Publications

  • Ceraso A, Lin JJ, Schneider-Thoma J, Siafis S, Tardy M, Komossa K, Heres S, Kissling W, Davis JM, Leucht S. Maintenance treatment with antipsychotic drugs for schizophrenia. Cochrane Database Syst Rev. 2020 Aug 11;8(8):CD008016. doi: 10.1002/14651858.CD008016.pub3.

    PubMed 32840872

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Bifeprunox and Quetiapine in people with Schizophrenia, run by H. Lundbeck A/S at 38 sites in 8 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 27 Sep 2010. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 38 sites in Russia, Romania, Thailand, Ukraine, Bulgaria and 3 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: Interim analysis showed inadequate efficacy of bifeprunox). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The difference in change from baseline to the 12-week time point between bifeprunox and placebo using the Positive and Negative Syndrome Scale (PANSS). (time frame: 12 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00658645, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Sep 2010.

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