Efficacy of Quetiapine XR Versus Placebo as Concomitant Treatment to Mood Stabilizers in the Control of Subsyndromal Symptoms of Bipolar Disorder
Efficacy of Quetiapine XR vs. Placebo as Concomitant Treatment to Mood Stabilizers in the Control of Subsyndromal Symptoms of Bipolar Disorder
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Phase 3
Contacts and Locations
Study Locations
-
-
-
Barcelona, Spain, 08036
- Hospital Clínic i Provincial
-
Barcelona, Spain, 08025
- Hospital Santa Creu i Sant Pau
-
Barcelona, Spain, 08907
- Hospital Universitari de Bellvitge
-
Barcelona, Spain, 08830
- Hosptial Benito Menni
-
Barcelona, Spain, 08940
- Parc Sanitari Sant Joan de Deu
-
Madrid, Spain, 28034
- Hospital Universitario Ramon y Cajal
-
Madrid, Spain, 28009
- Hospital General Universitario Gregorio Marañon
-
Oviedo, Spain, 33011
- Centro de Salud Menta II
-
Valencia, Spain, 46134
- Hosptial Clinico Valencia/ CSM Foios
-
Vitoria, Spain, 01004
- Hospital Santiago Apostol
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Informed Consent signature
- At least 18 years old
- Diagnoses of bipolar disorder I or II (as DSM-IV-TR 4ª Ed codes)
- Previous treatment with a mood stabilizer (lithium, valproate or lamotrigine) at stable and optimum doses for at least six weeks prior to the start of the trial (i.e., on the same dose and serum levels within the therapeutic ranges: 0.6-1.2 mEq/l of lithium or 50-100 ug/ml of valproate)
- Presenting subsyndromal symptoms at enrolment and randomization point, defined as YMRS ≤ 14 and/ or MADRS ≥ 8 and ≤14
- At least one manic, mixed, or depressed episode in the last 5 years
- Being able to understand and meet the study requirements
Exclusion Criteria:
- Pregnant or nursing women
- Mental retardation.
- Current active diagnoses of any axis I or II DSM-IV-TR diagnoses different from bipolar disorder I or II. This doesn't apply to nicotine nor caffeine abuse-dependence. Punctual alcohol and/or substances use not constitutive of a diagnoses of abuse or dependence following DSM-IV-TR criteria wouldn't suppose the exclusion of the patient from the study. Anxiety in levels not constitutive of any anxiety disorder within those codified in DSM-IV-TR wouldn't either suppose the exclusion of the patient from the study
- Having suffered any acute episode (depressive, manic, or mixed) within the 8 weeks prior to enrolment, as defined in DSM-IV-TR
- Patients that, in the investigator's opinion, are at a high risk of suicide or mean a risk of aggression to others.
- Having been treated with any antidepressant at randomization.
- Having been treated with any mood stabilizer other than lithium/valproate/lamotrigine at randomization.
- Having been treated with any oral antipsychotic drug at randomization. Administration of a depot antipsychotic medication within one dosing interval prior to randomization (e.g. Long acting Risperidone 2 weeks; Zuclopenthixol 4 weeks; Pipotiazine 4 weeks; Flufenazine 6 weeks)
- Having been treated with any of the following P450-3A4 cytochrome inhibitors in the 14 days prior to inclusion, including: ketoconazole, itraconazole, fluconazole, erythromycin, clarithromycin, fluvoxamine, indinavir, nelfinavir, ritonavir and saquinavir.
- Having been treated with any of the following P450-3A4 cytochrome inducers in the 14 days prior to inclusion, including: phenytoin, carbamazepine, barbiturates, rifampicin, St. John's wart, and glucocorticoids.
- Any contraindication to the use of quetiapine fumarate in the investigator's opinion (including lack of response to it in previous treatment attempts)
- Suffering any medical condition that can effect the absorption, distribution, metabolism or excretion of the study treatment(s).
- Suffering any medical condition in decompensation or not receiving inappropriate treatment for it in the investigator's opinion (e.g., hyperthyroidism, angina pectoris, hypertension...)
- Suffering unstable diabetes at enrolment or randomization
- Absolute neutrophil count ≤ 1.5 x 109 per litre at randomization
- Non-compliance with the study plan.
- Participation in another clinical trial in the four weeks prior to randomization
Study Plan
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: RANDOMIZED
- Interventional Model: PARALLEL
- Masking: DOUBLE
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
PLACEBO_COMPARATOR: Placebo
|
Placebo
|
|
EXPERIMENTAL: Quetiapine
Quetiapine 300 mg or 600 mg
|
quetiapine 300 mg or 600 mg
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
To assess the efficacy of quetiapine extended release (QTP XR) vs. placebo in the control of bipolar subsyndromal symptoms when added to previous mood stabilizer treatment (lithium/ valproate/lamotrigine)
Time Frame: Study of 12 weeks follow-up
|
Study of 12 weeks follow-up
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
To assess the efficacy of QTP XR vs. placebo when added to previous mood stabilizer treatment (lithium/ valproate/lamotrigine) in functional level of bipolar patients with subsyndromal symptoms
Time Frame: Study of 12 weeks follow-up
|
Study of 12 weeks follow-up
|
Collaborators and Investigators
Sponsor
Sponsor
Investigators
Investigators
- Principal Investigator: Eduard Vieta, PhD, Hospital Clínic i Provincial. Barcelona. Spain
- Principal Investigator: Ana Gonzalez Pinto, Hospital Santiago Apostol. Vitoria. Spain
- Principal Investigator: Benedikt Amann, Hospital Benito Menni. Barcelona. Spain
- Principal Investigator: Celso Arango, Hospital General Universitario Gregorio Marañon. Madrid. Spain
- Principal Investigator: Jose Manuel Crespo, Hospital Universitari de Bellvitge. Barcelona. Spain
- Principal Investigator: Julio Bobes, Centro de Salud Mental II. Oviedo. Spain
- Principal Investigator: Josefina Perez, Hospital Santa Creu I Sant Pau. Barcelona. Spain
- Principal Investigator: Gabriel Selva, Hospital Clinico de Valencia/ CSM Foios. Valencia. Spain
- Principal Investigator: Belen Arranz, Parc Sanitari Sant Joan de Deu. Barcelona. Spain
- Principal Investigator: Jeronimo Saiz, Hospital Universitario Ramon y Cajal. Madrid. Spain
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (ACTUAL)
Primary Completion
Study Completion (ACTUAL)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (ESTIMATE)
First Posted
Study Record Updates
Last Update Posted (ESTIMATE)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- D1443L00079
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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