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SchizophreniaPhase 3NCT00156104

Efficacy and Safety of Asenapine With Placebo and Haloperidol (41023)(P05926)(COMPLETED)

A Phase 3 study testing Asenapine and Haloperidol 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

Schizophrenia is a brain disease. The primary features of schizophrenia are characterized by Positive symptoms (symptoms that should not be there, inability to think clearly, to distinguish reality from fantasy i.e., hearing voices) and Negative symptoms (a reduction or absence of normal behaviors or emotions, i.e.… 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 Haloperidol
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
460 participants
Where
No sites listed yet
Study dates
1 Jul 2005to 16 Sep 2006
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Currently suffering from an acute exacerbation of schizophrenia. Caregiver required.

Who cannot join

  • Have an uncontrolled, unstable medical condition. Have any other pyschiatric disorder other than schizophrenia as a primary diagnosis.

About this study

Official title: A Multicenter, Randomized, Double-Blind, Fixed-Dose, 6-Week Trial of the Efficacy and Safety of Asenapine Compared With Placebo Using Haloperidol Positive Control in Subjects With an Acute Exacerbation of Schizophrenia

Schizophrenia is a brain disease. The primary features of schizophrenia are characterized by Positive symptoms (symptoms that should not be there, inability to think clearly, to distinguish reality from fantasy i.e., hearing voices) and Negative symptoms (a reduction or absence of normal behaviors or emotions, i.e., unable to manage emotions, make decisions and relate to others). Other symptoms include reduced ability to recall and learn new information, difficulty with problem solving, or maintaining productive employment. The symptoms of schizophrenia may be due to an imbalance in chemicals in the brain, primarily dopamine and serotonin, which enables brain cells to communicate with each other.

Asenapine is an investigational drug that may help to correct the inbalance in dopamine and serotonin. This is a 6-week trial to test the efficacy and safety of asenapine, compared with placebo, using an active comparator agent (haloperidol) in the treatment of patients with an acute exacerbation of schizophrenia. Patients who complete the 6-week trial will have the option of continuing in an additional one year extension trial.

Conditions
Schizophrenia
Being tested
Asenapine, Haloperidol, Placebo arm
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 mg BID

  • AsenapineDrug

    10 mg BID

  • HaloperidolDrug

    4 mg BID

  • Placebo armOther

Study groups in NCT00156104
Study groupRoleWhat they receive
1ExperimentalAsenapine 5 mg BID
Receives: Drug: Asenapine
2ExperimentalAsenapine 10 mg BID
Receives: Drug: Asenapine
3Active comparatorHaloperidol 4m mg BID
Receives: Drug: Haloperidol
4Placebo comparatorplacebo
Receives: Other: Placebo arm

What is being measured

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

  1. Improvement in schizophrenia (change in total PANSS score) from baseline to endpoint (LOCF/MMRM)

    Measured: Primary outcome measured weekly for 6 weeks

Secondary outcomes (9)
  1. Other dimensions of schizophrenia (positive, negative, disorganized thought, hostility/excitement, anxiety/depression, and general psychopathology) CGI-S; CGI-I

    Measured: At weekly intervals throughout the 6-week trial.

  2. Neurocognition and cognitive functioning

    Measured: Baseline and Endpoint ( Day 42)

  3. CDSS

    Measured: Days 21 and 42(Endpoint).

  4. Suicidal thinking ( ISST modified)

    Measured: Days 14 and 42 (Endpoint)

  5. Quality of life and patient functionality (QLS; Q-LES-Q ;PETIT0; Physical exam; Pregnancy test

    Measured: Baseline and Day 42(Endpoint)

  6. Readiness to discharge

    Measured: At weekly intervals during the 6-week trial

  7. EPS ( AIMS; BARS; SARS)

    Measured: At weekly intervals during the 6-week triaL

  8. Labs; Vital Signs; Weight and girth; ECG

    Measured: Days 14; 28 and 42 (Endpoint)

  9. Safety and Tolerability

Timeline

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

  1. First posted12 Sep 2005 (estimated)
  2. Study start1 Jul 2005
  3. Primary completion18 Aug 2006
  4. Study completion16 Sep 2006

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
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
460 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00156104
Sponsor's protocol ID
P05926
Other IDs
Hera, 41023
Status last verified
Feb 2022
First submitted
7 Sep 2005
Last updated
15 Aug 2024
Results posted
No
Data monitoring committee
No

Publications

  • Kane JM, Cohen M, Zhao J, Alphs L, Panagides J. Efficacy and safety of asenapine in a placebo- and haloperidol-controlled trial in patients with acute exacerbation of schizophrenia. J Clin Psychopharmacol. 2010 Apr;30(2):106-15. doi: 10.1097/JCP.0b013e3181d35d6b.

    PubMed 20520283
  • Castle DJ, Slott Jensen JK. Management of depressive symptoms in schizophrenia. Clin Schizophr Relat Psychoses. 2015 Apr;9(1):13-20.

    PubMed 25367164

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Asenapine and Haloperidol 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 1 inclusion and 1 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 15 Aug 2024. 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. 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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Improvement in schizophrenia (change in total PANSS score) from baseline to endpoint (LOCF/MMRM) (time frame: Primary outcome measured weekly for 6 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 NCT00156104, which also lists 2 linked publications.

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 15 Aug 2024.

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