- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT00545467
Evaluation of the Strategies of Switching Schizophrenia Patients to Aripiprazole From Other Antipsychotic Agents
Evaluation of the Strategies of Switching Schizophrenia Patients to Aripiprazole From Other Antipsychotic Agents: Combination of Pharmacogenomics and Therapeutic Drug Monitoring
Studieoversikt
Status
Intervensjon / Behandling
Detaljert beskrivelse
Aripiprazole (commercial name abilify) is the first commercially available drug with dopamine partial agonist effects approved for the treatment of schizophrenia and bipolar disorder since 2002 in the U.S. It reduces negative symptoms of schizophrenia efficiently and has a markedly lower incidence of extrapyramidal symptoms and tardive dyskinesia. However, the process of switching other antipsychotic agents to aripiprazole can result in a re-emergence or worsening of psychosis, along with unpleasant side effects such as insomnia, nausea, vomiting, anxiety and agitation. On the basis of a prior study demonstrating the efficacy and safety of aripiprazole in Taiwan population, we hence propose to apply a combined use of pharmacogenomics and therapeutic drug monitoring in the evaluation of the strategies of switching stable schizophrenia patients to aripiprazole from other antipsychotic agents.
We will evaluate their cytochrome P450 background along with other potential candidate genes of schizophrenia. This 2-year proposal will examine the relative efficacy, safety and tolerability of two different strategies for switching stable inpatients/outpatients from prior antipsychotic monotherapy to aripiprazole 15 mg/day monotherapy using two different strategies:
- Fast tapering of the previous medication within 1 week after initiating aripiprazole for 2 weeks.
- Slow tapering of the previous medication within 4 weeks after initiating aripiprazole for 2 weeks.
A total of 200 stable schizophrenia patients will be randomized with open label to two strategies.
We expect to achieve the following results:
- Developing a protocol that has high probability of switching successfully schizophrenia patients to aripiprazole, which is effective in treatment refractory cases and has a markedly lower incidence of severe side effects, from other antipsychotics.
- Elucidate both pharmacokinetic and pharmacodynamic factors associated with clinical efficacy of aripiprazole.
Studietype
Registrering (Faktiske)
Fase
- Fase 4
Kontakter og plasseringer
Studiesteder
-
-
-
Taipei, Taiwan, 100
- Department of Psychiatry, National Taiwan University Hospital
-
-
Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Beskrivelse
Inclusion Criteria:
- Men and non-lactating, non-pregnant women who are aged 18 to 65 years
- primary diagnosis of DSM-IV schizophrenia or schizoaffective disorder
- taking a stabilized dose of a single oral antipsychotic for at least 1 month prior to study entry
- cannot have been hospitalized for an exacerbation of schizophrenia or schizoaffective disorder for at least 2 months
Exclusion Criteria:
- having other psychiatric disorders
- hospitalizing for acute exacerbation of patients' condition within 2 months
- having taken a selective serotonin reuptake inhibitor (SSRI) within 4 weeks of screening
- a first episode of schizophrenia or schizoaffective disorder
- a clinically significant neurological abnormality other than tardive dyskinesia or EPS
- current diagnosis of psychoactive substance dependence or a historical drug or alcohol abuse within 1 month before the beginning of the study
- treatment with an investigational drug within 4 weeks prior to randomization
- requiring to take medication that inhibits the microsomal enzyme CYP2D6 or inhibits or acts as a substrate for CYP3A4
Studieplan
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Enkelt
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
|
Aktiv komparator: 1
fast tapering of the previous medication within 1 week after initiating aripiprazole for 2 weeks
|
Aripiprazole will be given as a fixed does, 15 mg/day, orally throughout 8 weeks in the 2 arms.
Andre navn:
|
|
Aktiv komparator: 2
slow tapering of the previous medication within 4 weeks after initiating aripiprazole for 2 weeks
|
Aripiprazole will be given as a fixed does, 15 mg/day, orally throughout 8 weeks in the 2 arms.
Andre navn:
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
|
Treatment efficacy was assessed using PNASS, Clinical Global Impression (CGI) Scale, and EPS rating scales
Tidsramme: on days 0, 7, 14, 28, 56
|
on days 0, 7, 14, 28, 56
|
Sekundære resultatmål
Resultatmål |
Tidsramme |
|---|---|
|
HPLC analysis Genotyping
Tidsramme: on days 0, 14, 56
|
on days 0, 14, 56
|
Samarbeidspartnere og etterforskere
Samarbeidspartnere
Etterforskere
- Studiestol: Tzung-Jeng Hwang, MD, Department of Psychiatry, National Taiwan University Hospital
Publikasjoner og nyttige lenker
Generelle publikasjoner
- Ma CH, Chan HY, Hsieh MH, Liu CC, Liu CM, Hwu HG, Kuo CH, Chen WJ, Hwang TJ. Identifying dopamine supersensitivity through a randomized controlled study of switching to aripiprazole from other antipsychotic agents in patients with schizophrenia. Ther Adv Psychopharmacol. 2022 Jan 28;12:20451253211064396. doi: 10.1177/20451253211064396. eCollection 2022.
- Jen YW, Hwang TJ, Chan HY, Hsieh MH, Liu CC, Liu CM, Hwu HG, Kuo CH, Lin YT, Chien YL, Chen WJ. Abnormally low prolactin levels in schizophrenia patients after switching to aripiprazole in a randomized trial: a biomarker for rebound in psychotic symptoms? BMC Psychiatry. 2020 Nov 23;20(1):552. doi: 10.1186/s12888-020-02957-7.
Studierekorddatoer
Studer hoveddatoer
Studiestart
Primær fullføring (Faktiske)
Studiet fullført (Faktiske)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Anslag)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
- Psykiske lidelser
- Schizofrenispektrum og andre psykotiske lidelser
- Schizofreni
- Psykotiske lidelser
- Fysiologiske effekter av legemidler
- Nevrotransmittere agenter
- Molekylære mekanismer for farmakologisk virkning
- Sentralnervesystemdepressiva
- Antipsykotiske midler
- Beroligende midler
- Psykotropiske stoffer
- Serotoninmidler
- Antidepressive midler
- Dopaminagonister
- Dopaminmidler
- Serotonin 5-HT1-reseptoragonister
- Serotoninreseptoragonister
- Serotonin 5-HT2-reseptorantagonister
- Serotonin-antagonister
- Dopamin D2-reseptorantagonister
- Dopaminantagonister
- Aripiprazol
Andre studie-ID-numre
- 200705030M
Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .
Kliniske studier på Aripiprazole
-
National Institute on Alcohol Abuse and Alcoholism...Brown UniversityFullført
-
Otsuka Pharmaceutical Development & Commercialization...FullførtSchizofreniForente stater, Estland, Ungarn, Bulgaria, Kroatia, Thailand, Puerto Rico, Chile, Polen, Italia, Sør-Afrika, Østerrike, Frankrike, Sør -Korea, Belgia
-
University of California, San FranciscoUniversity of Washington; National Institute on Deafness and Other Communication...Rekruttering
-
Otsuka Beijing Research InstituteFullført
-
University of California, Los AngelesAlkermes, Inc.AvsluttetSchizofreni | Schizofreniform lidelse | Schizoaffektiv lidelse, depressiv typeForente stater
-
Otsuka Pharmaceutical Co., Ltd.FullførtMajor depressiv lidelseJapan
-
Veterans Medical Research FoundationBristol-Myers SquibbFullført
-
H. Lundbeck A/SOtsuka Pharmaceutical Co., Ltd.FullførtSchizofreniForente stater
-
CSPC Zhongnuo Pharmaceutical (Shijiazhuang) Co....Har ikke rekruttert ennå
-
Alkermes, Inc.FullførtSchizofreniForente stater