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SchizophreniaPhase 3NCT00174265

6-Month Extension Trial of Asenapine With Olanzapine in Negative Symptoms Patients Who Completed the First 6- Month Trial (A7501014)(COMPLETED)(P05772)

A Phase 3 study testing asenapine and olanzapine in people with Schizophrenia, run by Organon and Co.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is an extension study of A7501013 (P05771/NCT00145496) to further test the efficacy and safety of Asenapine compared with a marketed agent (olanzapine) in the treatment of patients with persistent negative symptoms of schizophrenia. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Schizophrenia
What is being tested?
asenapine and olanzapine
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
196 participants
Where
No sites listed yet
Study dates
Jul 2005to May 2009
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Continue to meet all demographic and procedural
  • this extension trial.
  • Have demonstrated an acceptable degree of compliance
  • and completed the A7501013 trial, and would benefit
  • from continued treatment according to the investigator.

Who cannot join

  • Have an uncontrolled, unstable clinically significant
  • medical condition.
  • Have been judged to be medically noncompliant in the
  • management of their disease.

About this study

Official title: A Multicenter, Double-Blind, Flexible-Dose, 6-Month Extension Trial Comparing the Safety and Efficacy of Asenapine With Olanzapine in Subjects Who Completed Protocol A7501013

This is an extension study of A7501013 (P05771/NCT00145496) to further test

the efficacy and safety of Asenapine compared with a

marketed agent (olanzapine) in the treatment of patients with

persistent negative symptoms of schizophrenia.

Conditions
Schizophrenia
Being tested
asenapine, olanzapine
Medical subject headings
Schizophrenia

What participants receive

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

  • asenapineDrug

    5-10 mg sublingually twice daily for 26 weeks

  • olanzapineDrug

    Also called Zyprexa

    5-20 mg by mouth once daily for 26 weeks

Study groups in NCT00174265
Study groupRoleWhat they receive
asenapineExperimentalNot described
Receives: Drug: asenapine
olanzapineActive comparatorNot described
Receives: Drug: olanzapine

What is being measured

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

  1. Change From Baseline in Negative Symptoms of Schizophrenia Measured by the Negative Symptom Assessment (NSA) Scale Total Score

    The NSA Scale is a 16-item clinician-rated instrument for rating the negative symptomatology of schizophrenia. Total score ranges from 16 (best) to 96 (worst), with greater scores indicating greater severity of symptoms.

    Measured: Baseline of A7501013 to Day 365

Secondary outcomes (1)
  1. Change From Baseline in Quality of Life Measured by the Quality of Life Scale (QLS) Total Score

    The QLS is a 21-item clinician-rated scale for rating psychosocial functioning (Interpersonal Relations, Instrumental Role, Intrapsychic Foundations, and Common Objects and Activities). The score ranges from 0 (worst) to 126 (best), with greater values indicating better quality of life.

    Measured: Baseline of A7501013 to Day 365

Timeline

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

  1. First posted15 Sep 2005 (estimated)
  2. Study startJul 2005
  3. Primary completionApr 2009
  4. Study completionMay 2009

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
Non-randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
196 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00174265
Sponsor's protocol ID
P05772
Other IDs
Aphrodite, A7501014
Status last verified
Feb 2022
First submitted
9 Sep 2005
Last updated
9 Feb 2022
Data monitoring committee
Yes

Publications

  • Buchanan RW, Panagides J, Zhao J, Phiri P, den Hollander W, Ha X, Kouassi A, Alphs L, Schooler N, Szegedi A, Cazorla P. Asenapine versus olanzapine in people with persistent negative symptoms of schizophrenia. J Clin Psychopharmacol. 2012 Feb;32(1):36-45. doi: 10.1097/JCP.0b013e31823f880a.

    PubMed 22198451

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing asenapine and olanzapine in people with Schizophrenia, run by Organon and Co.

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 4 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: finished, as of the sponsor's last update on 9 Feb 2022. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. 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?

Yes. Results are posted in the registry (first posted 5 Jul 2010). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Change From Baseline in Negative Symptoms of Schizophrenia Measured by the Negative Symptom Assessment (NSA) Scale Total Score (time frame: Baseline of A7501013 to Day 365). 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 NCT00174265, 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 9 Feb 2022.

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