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Evaluation of Effectiveness and Safety of Flexible-dose Paliperidone Extended Release in Patients With Schizoaffective Disorder.

A Randomized, Double-blind, Placebo-controlled, Parallel- Group Study to Evaluate the Efficacy and Safety of Flexible-dose Paliperidone ER in the Treatment of Patients With Schizoaffective Disorder.

The purpose of this study is to measure the effectiveness and assess the safety of different dosages (from 3 mg/day to 12 mg/day) of the antipsychotic paliperidone extended-release (ER) in patients who are experiencing an acute episode of schizoaffective disorder.

Studieoversigt

Status

Afsluttet

Detaljeret beskrivelse

Schizophrenia and schizoaffective disorder are closely related in terms of symptoms, coexisting conditions, and genetic risk. In previous studies in patients with schizophrenia, treatment with paliperidone extended-release (ER) improved psychotic symptoms, as well as mood symptoms evaluated by anxiety/depression and hostility/excitement Positive and Negative Symptoms of Schizophrenia (PANSS) factor scores. Therefore, paliperidone ER may also be effective in treating symptoms of schizoaffective disorder. Paliperidone's limited potential for drug-drug interaction is particularly important in this patient population, in which multiple drug therapy is relatively common. This multicenter, double-blind (neither the patient nor the physician knows whether drug or placebo is being taken, or at what dosage), randomized (patients are assigned different treatments based on chance), placebo-controlled, parallel-group study is designed to examine the effectiveness and safety of paliperidone ER in adult patients with schizoaffective disorder who are experiencing an acute episode of this disorder. Patients in the study will be randomly assigned to 1 of 2 groups to receive 6 weeks of oral treatment with flexible dosages of paliperidone ER (3-12 mg/day) or with placebo. The primary efficacy outcome will be the change from baseline to Week 6, or the last post-randomization assessment during double-blind treatment (endpoint), in the PANSS total score. Safety will be assessed by monitoring adverse events, clinical laboratory testing, pregnancy testing, vital signs measurements, physical examination, administration of a 12-lead ECG, movement disorders side effect scales, and the InterSePT Scale for Suicidal Thinking. Patients may also choose to participate in a pharmacogenomic (DNA) analysis. The primary study hypothesis is that flexible-dose paliperidone ER is better than placebo on the change from baseline in the PANSS total score in acutely ill patients with schizoaffective disorder. Patients will receive study drug by mouth for a total of 43 days. Beginning on Day 1, patients will take either placebo or paliperidone ER 6 mg/day. After day 4, dosages may be adjusted, at defined intervals, to a dosage between 3 mg/day and 12 mg/day, inclusive.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

307

Fase

  • Fase 3

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

      • Davao City, Filippinerne
      • Mandaluyong, Filippinerne
      • Manila, Filippinerne
      • Pasig National Capitol Region, Filippinerne
    • California
      • Cerritos, California, Forenede Stater
      • Costa Mesa, California, Forenede Stater
      • Garden Grove, California, Forenede Stater
      • Huntington Beach, California, Forenede Stater
      • Pico Rivera, California, Forenede Stater
      • San Diego, California, Forenede Stater
    • Florida
      • Aventura, Florida, Forenede Stater
      • Hollywood, Florida, Forenede Stater
      • Kissimmee, Florida, Forenede Stater
      • Leesburg, Florida, Forenede Stater
    • Oklahoma
      • Oklahoma City, Oklahoma, Forenede Stater
    • Pennsylvania
      • Philadelphia, Pennsylvania, Forenede Stater
    • South Carolina
      • Charleston, South Carolina, Forenede Stater
    • Texas
      • Austin, Texas, Forenede Stater
      • Irving, Texas, Forenede Stater
      • Ahmedabad, Indien
      • Ahmedibad, Indien
      • Aurangabad, Indien
      • Chennai, Indien
      • Delhi, Indien
      • Kanpur Uttarpradeh, Indien
      • Pune, Indien
      • Vadadora, Indien
      • Chonju, Korea, Republikken
      • Daegu, Korea, Republikken
      • Gyeonggi-Do, Korea, Republikken
      • Inchun, Korea, Republikken
      • Kwangiu, Korea, Republikken
      • Pusan, Korea, Republikken
      • Seoul, Korea, Republikken
      • Ipoh, Malaysia
      • Kota Kinabalu, Malaysia
      • Kuala Lumpur, Malaysia
      • Kuching, Malaysia
      • Arad, Rumænien
      • Bucharest, Rumænien
      • Campina, Rumænien
      • Com Gura Ocnitei, Rumænien
      • Iasi, Rumænien
      • Pitesti, Rumænien

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år til 65 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Diagnostic and Statistical Manual - Fourth Edition (DSM-IV) diagnosis of schizoaffective disorder
  • A total Positive and Negative Symptoms of Schizophrenia (PANSS) score of >= 60
  • A score of >= 16 on Young Mania Rating Scale (YMRS) or a score of >= 16 on the Hamilton Depression Rating Scale (HAM-D 21)

Exclusion Criteria:

  • A primary active mental illness diagnosis other than schizoaffective disorder
  • Patients with first episode psychosis
  • Active substance dependence within previous 6 months
  • Treatment with clozapine within 6 months of randomization
  • A history of treatment resistance, defined by failure to respond to 2 adequate trials of antipsychotic medication
  • Pregnancy, breast-feeding, or planning to become pregnant

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Firedobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: 001
Paliperidone ER (3-12mg/day in 3 mg/day increments for 6 weeks)
(3-12mg/day in 3 mg/day increments for 6 weeks)
Eksperimentel: 003
Paliperidone ER (3-12mg/day in 3 mg/day increments for 6 weeks)
(3-12mg/day in 3 mg/day increments for 6 weeks)
Placebo komparator: 002
Placebo for 6 weeks
for 6 weeks

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Positive and Negative Symptoms of Schizophrenia (PANSS) Total Score at Baseline.
Tidsramme: Baseline
The PANSS is a 30-item scale (range 30-210) designed to assess various symptoms of schizophrenia including delusions, grandiosity, blunted affect, poor attention, and poor impulse control. The 30 symptoms are rated on a 7-point scale that ranges from 1 (absent) to 7 (extreme psychopathology). The PANSS total score consists of the sum of all 30 PANSS items. Higher scores indicate worsening.
Baseline
Positive and Negative Symptoms of Schizophrenia (PANSS) Total Score - Change From Baseline to Week 6 Last Observation Carried Forward (LOCF) End Point.
Tidsramme: The primary efficacy endpoint was the change from baseline to week 6 or the last post-randomization assessment during double-blind treatment in the PANSS total score.
The PANSS is a 30-item scale (range 30-210) designed to assess various symptoms of schizophrenia including delusions, grandiosity, blunted affect, poor attention, and poor impulse control. The 30 symptoms are rated on a 7-point scale that ranges from 1 (absent) to 7 (extreme psychopathology). The PANSS total score consists of the sum of all 30 PANSS items. Higher scores indicate worsening.
The primary efficacy endpoint was the change from baseline to week 6 or the last post-randomization assessment during double-blind treatment in the PANSS total score.

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Positive and Negative Symptoms of Schizophrenia (PANSS) Positive Subscale Score - Change From Baseline to Week 6 Last Observation Carried Forward (LOCF) End Point.
Tidsramme: Change from baseline to Week 6 or the last post-randomization assessment during double-blind treatment
Positive Syndrome Scale (range 7-49): Sum of scores for items 1-7 in positive subscale: delusions, conceptual disorganization, hallucinatory behavior, excitement, grandiosity, suspiciousness/persecution, and hostility. Higher scores indicate worsening.
Change from baseline to Week 6 or the last post-randomization assessment during double-blind treatment
Positive and Negative Symptoms of Schizophrenia (PANSS) Negative Subscale Score - Change From Baseline to Week 6 Last Observation Carried Forward (LOCF) End Point.
Tidsramme: Change from baseline to Week 6 or the last post-randomization assessment during double-blind treatment
Negative Syndrome Scale (range 7-49): Sum of scores for items 1-7 in negative subscale: blunted effect, emotional withdrawal, poor rapport, passive apathetic social withdrawal, difficulty in abstract thinking, lack of spontaneity and flow of conversation, and stereotyped thinking. Higher scores indicate worsening.
Change from baseline to Week 6 or the last post-randomization assessment during double-blind treatment
Positive and Negative Symptoms of Schizophrenia (PANSS) General Psychopathology Subscale Score - Change From Baseline to Week 6 Last Observation Carried Forward (LOCF) End Point.
Tidsramme: Change from baseline to Week 6 or the last post-randomization assessment during double-blind treatment
General Psychopathology (range 16-112): Sum of scores for somatic concern, anxiety, guilt feelings, tension, mannerisms/posturing, depression, motor retardation, uncooperativeness, unusual thought content, disoriented, poor attention, lack of judgment/insight, disturbance of volition, poor impulse control, preoccupation, and active social avoidance. Higher scores indicate worsening.
Change from baseline to Week 6 or the last post-randomization assessment during double-blind treatment
Positive and Negative Symptoms of Schizophrenia (PANSS) Positive Factor Score - Change From Baseline to Week 6 Last Observation Carried Forward (LOCF) End Point.
Tidsramme: Change from baseline to Week 6 or the last post-randomization assessment during double-blind treatment
Positive PANSS Factor Score (range 8-56): Sum of scores for items 1, 3, 5, and 6 in positive subscale: delusions, hallucinatory behavior, grandiosity, suspiciousness; item 7 in negative subscale: stereotyped thinking; and items 1, 9, and 12 in general psychopathology subscale: somatic concern, unusual thought content, lack of judgment, and insight. Higher scores indicate worsening.
Change from baseline to Week 6 or the last post-randomization assessment during double-blind treatment
Positive and Negative Symptoms of Schizophrenia (PANSS) Negative Factor Score - Change From Baseline to Week 6 Last Observation Carried Forward (LOCF) End Point.
Tidsramme: Change from baseline to Week 6 or the last post-randomization assessment during double-blind treatment
Negative PANSS Factor Score (range 7-49): Sum of scores for items 1, 2, 3, 4, and 6 in negative subscale: blunted affect, emotional withdrawal, poor rapport, passive social withdrawal, lack of spontaneity; and items 7 and 16 in general psychopathology subscale: motor retardation, and active social avoidance. Higher scores indicate worsening.
Change from baseline to Week 6 or the last post-randomization assessment during double-blind treatment
Positive and Negative Symptoms of Schizophrenia (PANSS) Disorganized Thought Factor Score - Change From Baseline to Week 6 Last Observation Carried Forward (LOCF) End Point.
Tidsramme: Change from baseline to Week 6 or the last post-randomization assessment during double-blind treatment
Disorganized Thoughts PANSS Factor Score (range 7-49): Sum of scores for item 2 in positive subscale:Conceptual disorganization; item 5 in negative subscale:difficulty in abstract thinking; and items 5, 10, 11, 13, and 15 in general psychopathology subscale: mannerisms/posturing, disorientation, poor attention, disturbance of volition, and preoccupation. Higher scores indicate worsening.
Change from baseline to Week 6 or the last post-randomization assessment during double-blind treatment
Positive and Negative Symptoms of Schizophrenia (PANSS) Uncontrolled Hostility/Excitement Factor Score - Change From Baseline to Week 6 Last Observation Carried Forward (LOCF) End Point.
Tidsramme: Change from baseline to Week 6 or the last post-randomization assessment during double-blind treatment
Uncontrolled Hostility/Excitement PANSS Factor Score (range 4-28): Sum of scores for items 4 and 7 in positive subscale: excitement, hostility; and items 8 and 14 in general psychopathology subscale: uncooperativeness, and poor impulse control. Higher scores indicate worsening.
Change from baseline to Week 6 or the last post-randomization assessment during double-blind treatment
Positive and Negative Symptoms of Schizophrenia (PANSS) Anxiety/Depression Factor Score - Change From Baseline to Week 6 Last Observation Carried Forward (LOCF) End Point.
Tidsramme: Change from baseline to Week 6 or the last post-randomization assessment during double-blind treatment
Anxiety/Depression PANSS Factor Score (range 4-28): Sum of scores for items 2, 3, 4, and 6 in general psychopathology subscale: Anxiety, Guilt feelings, Tension, Depression. Higher scores indicate worsening.
Change from baseline to Week 6 or the last post-randomization assessment during double-blind treatment
Clinical Global Impression (CGI-S) - Severity for Schizoaffective Disorder Score at Baseline
Tidsramme: Baseline
The CGI-S rating scale is a 7 point global assessment that measures the clinician's impression of the severity of illness exhibited by a subject. A rating of 1 is equivalent to "Normal, not at all ill" and a rating of 7 is equivalent to "Among the most extremely ill subjects". Higher scores indicate worsening.
Baseline
Clinical Global Impression (CGI-S) - Severity for Schizoaffective Disorder - Change From Baseline to Week 6 Last Observation Carried Forward (LOCF) End Point.
Tidsramme: Change from baseline to Week 6 or the last post-randomization assessment during double-blind treatment
The CGI-S rating scale is a 7 point global assessment that measures the clinician's impression of the severity of illness exhibited by a subject. A rating of 1 is equivalent to "Normal, not at all ill" and a rating of 7 is equivalent to "Among the most extremely ill subjects". Higher scores indicate worsening.
Change from baseline to Week 6 or the last post-randomization assessment during double-blind treatment
Clinical Global Impression (CGI-C) - Change for Schizoaffective Disorder
Tidsramme: Week 6 or the last post-randomization assessment during double-blind treatment
The CGI-C rating scale is a 7 point global assessment that measures the clinician's impression of the change occurring in the illness over a course of treatment, relative to baseline. A rating of 4 is equivalent to "No change". Ratings of <4 are equivalent to "improvement" and ratings of > 4 are equivalent to "worsening". Higher scores indicate worsening.
Week 6 or the last post-randomization assessment during double-blind treatment
Participants With Response
Tidsramme: Week 6 LOCF End Point
Response is defined as a 30% or more reduction from baseline PANSS total score and CGI-C score of <= 2 (CGI-C-SCA: Clinical Global Impression of Change for Schizoaffective Disorder).
Week 6 LOCF End Point

Andre resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Baseline Hamilton Rating Scale for Depression (HAM-D-21) With Baseline HAM-D-21 Total Score >= 16
Tidsramme: Baseline
Clinician-rated scale that evaluates depressed mood as well as the vegetative and cognitive symptoms of depression. The items are rated on either a 5-point (0 to 4) or a 3-point (0 to 2) scale. The 5-point scale uses a rating of 0 (absent), 1 (doubtful to mild), 2 (mild to moderate), 3 (moderate to severe), and 4 (very severe). Higher scores indicate worsening. The responses are summed to yield the HAM-D-21 score that ranges from 0-63.
Baseline
Hamilton Rating Scale for Depression (HAM-D-21) With Baseline HAM-D-21 Total Score >= 16 - Change From Baseline to Week 6 Last Observation Carried Forward (LOCF) End Point.
Tidsramme: Change from baseline to Week 6 or the last post-randomization assessment during double-blind treatment
Clinician-rated scale that evaluates depressed mood as well as the vegetative and cognitive symptoms of depression. The items are rated on either a 5-point (0 to 4) or a 3-point (0 to 2) scale. The 5-point scale uses a rating of 0 (absent), 1 (doubtful to mild), 2 (mild to moderate), 3 (moderate to severe), and 4 (very severe). Higher scores indicate worsening. The responses are summed to yield the HAM-D-21 score that ranges from 0-63.
Change from baseline to Week 6 or the last post-randomization assessment during double-blind treatment
Baseline Young Mania Rating Scale (YMRS) With Baseline YMRS Total Score >= 16
Tidsramme: Baseline
11-item scale (elevated mood, increased motor activity, sexual interest, sleep, irritability, speech [rate/amount], language-thought disorder, content, disruptive-aggressive behaviors, appearance, and insight) based on subject's report of his or her condition and clinician's behavioral observations during the interview, with emphasis on the latter. Higher scores indicate worsening. The responses are summed to yield the YMRS total score, which ranges from 0 to 60.
Baseline
Young Mania Rating Scale (YMRS) With Baseline YMRS Total Score >= 16 - Change From Baseline to Week 6 Last Observation Carried Forward (LOCF) End Point.
Tidsramme: Change from baseline to Week 6 or the last post-randomization assessment during double-blind treatment
11-item scale (elevated mood, increased motor activity, sexual interest, sleep, irritability, speech [rate/amount], language-thought disorder, content, disruptive-aggressive behaviors, appearance, and insight) based on subject's report of his or her condition and clinician's behavioral observations during the interview, with emphasis on the latter. Higher scores indicate worsening. The responses are summed to yield the YMRS total score, which ranges from 0 to 60.
Change from baseline to Week 6 or the last post-randomization assessment during double-blind treatment

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. december 2006

Primær færdiggørelse (Faktiske)

1. juni 2008

Studieafslutning (Faktiske)

1. juni 2008

Datoer for studieregistrering

Først indsendt

15. december 2006

Først indsendt, der opfyldte QC-kriterier

15. december 2006

Først opslået (Skøn)

18. december 2006

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

9. maj 2014

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

24. april 2014

Sidst verificeret

1. april 2014

Mere information

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med Paliperidone ER

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