Skip to content

Quetiapine Extended Release (XR) in Bipolar Patients With Comorbid Generalized Anxiety Disorder (GAD)

Quetiapine XR in the Treatment of Comorbid Generalized Anxiety Disorder in Bipolar Depression With or Without Substance Use Disorder

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00671853
Enrollment
120
Registered
2008-05-05
Start date
2008-04-30
Completion date
2011-03-31
Last updated
2016-12-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anxiety, Anxiety Disorders, Bipolar Disorder, Substance Use Disorders

Keywords

Bipolar Disorder, Anxiety, Anxiety Disorders, Substance Use Disorders

Brief summary

The primary objective is to test the hypothesis that Quetiapine XR (Extended Release) monotherapy and adjunctive therapy is effective in the acute treatment of bipolar depression and comorbid generalized anxiety disorder in patients with bipolar disorder with or without a substance use disorder. The secondary aim is to generate an estimate of effect size to power a definitive large-scale, multi-site collaborative R01 and to configure the use of the primary and secondary outcome measures in the definitive large-scale study.

Detailed description

120 subjects aged 18 and up with Diagnostic and Statistical Manual -IV Generalized Anxiety Disorder and Bipolar Disorder type I or II as identified by extensive clinical interview and the Mini-International Neuropsychiatric Interview (MINI) will be enrolled and randomized. Assignment to each arm will be balanced for BP I vs BP II; male vs female; and with vs without SUD. Potential participants will be recruited by means of Institutional Review Board -approved advertising or from the clinical psychiatric infrastructure. This study is a randomized, double-blind, placebo-controlled, 8-week comparison of quetiapine sustained-release monotherapy or adjunctive mood stabilizer therapy vs. placebo in the acute treatment of comorbid generalized anxiety disorder in patients with bipolar disorder with or without a substance use disorder. Subjects will be assessed weekly for mood changes and side effects.

Interventions

DRUGQuetiapine XR

Days 1-2 - 50 mg/day; Days 3-4 - 150mg/day; Day 5-End of Study - 300mg/day

DRUGPlacebo for quetiapine XR

Days 1-2 - 50 mg/day; Days 3-4 - 150mg/day; Day 5-End of Study - 300mg/day

Sponsors

National Alliance for Research on Schizophrenia and Depression
CollaboratorOTHER
AstraZeneca
CollaboratorINDUSTRY
University Hospitals Cleveland Medical Center
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Diagnostic and Statistical Manual-IV diagnosis of bipolar I or II disorder, and currently depressed as confirmed by the MINI-Plus at Screening. * Diagnostic and Statistical Manual-IV diagnosis of lifetime GAD; * Hamilton Depression Rating Scale -17 items total score ≥ 18; * Hamilton Anxiety Rating Scale total score ≥ 18; * Be male or female at least 18 year old and not older than 65.

Exclusion criteria

* Pregnancy or breast feeding. * Severe medical or neurological problems. * Severe personality disorder. * Currently suicidal risk judged by physician. * Known history of intolerance or hypersensitivity to any of the medications involved in the study. * Treatment with quetiapine at any dose in the 6 months prior to randomization. * Known lack of response to quetiapine in a dosage of at least 50 mg for 4 weeks at any time, as judged by the investigator. * Dependence on opiate, phencyclidine (PCP), and/or barbiturate. * Acute mania as determined by a score \> 12 on the Young Mania Rating Scale at baseline. * Concurrent obsessive compulsive disorder. * Use of any of the following cytochrome P450 3A4 inhibitors in the 14 days preceding enrolment including but not limited to: ketoconazole, itraconazole, fluconazole, erythromycin, clarithromycin, troleandomycin, indinavir, nelfinavir, ritonavir, fluvoxamine and saquinavir * Use of any of the following cytochrome P450 inducers in the 14 days preceding enrollment including but not limited to: phenytoin, carbamazepine, barbiturates, rifampin, St. John's Wort, and glucocorticoids * Administration of a depot antipsychotic injection within one dosing interval (for the depot) before randomisation * Medical conditions that would affect absorption, distribution, metabolism, or excretion of study treatment * Unstable or inadequately treated medical illness (e.g. diabetes, angina pectoris, hypertension) as judged by the investigator * Involvement in the planning and conduct of the study * Previous enrolment or randomisation of treatment in the present study. * Participation in another drug trial within 4 weeks prior enrolment into this study or longer in accordance with local requirements * A patient with diabetes mellitus (DM) fulfilling one of the following criteria: a. Unstable DM defined as enrollment glycosylated hemoglobin (HbA1c) .8.5% b. Admitted to hospital for treatment of DM or DM related illness within the past 12 weeks c. Not under physician care for DM d. Physician responsible for patient's DM care has not indicated that the patient's DM is controlled f. Physician responsible for patient's DM care has not approved the patient's participation in the study g. Has not been on the same dose of oral hypoglycemic drug(s) and/or diet for the 4 weeks before randomization. For thiazolidinediones (glitazones) this period should not be less than 8 weeks before randomization h. Taking insulin whose daily dose on one occasion in the past 4 weeks has been more than 10% above or below their mean dose in the preceding 4 weeks Note: If a patient with DM meets one of these criteria, the patient is to be excluded even if the treating physician believes that the patient is stable and can participate in the study.

Design outcomes

Primary

MeasureTime frameDescription
Change in the 17 Item Hamilton Rating Scale for Depression (HAM-D-17) ScoreWeek 0 - Week 8A score of 0-7 is considered to be normal. Hamilton Rating Scale total score ranges from 0-57 where higher scores are indicative of more depression.

Secondary

MeasureTime frameDescription
Response Rate (≥ 50% Improvement) on Hamilton Rating Scale for Depression (HAM-D-17)Week 0 - Week 8A score of 0-7 is considered to be normal. Hamilton Rating Scale total score ranges from 0-57 where higher scores are indicative of more depression.
Remission Rate (≤ 7) on Hamilton Rating Scale for Depression (HAM-D-17)Week 0 - Week 8A score of 0-7 is considered to be normal. Hamilton Rating Scale total score ranges from 0-57 where higher scores are indicative of more depression. Remission is defined by the number of participants with Hamilton Rating Scale for Depression score equal to or less than 7.
Change in Clinical Global Impressions of Improvement or Severity (CGI-I or S) ScoreWeek 0 - Week 8The Clinical Global Impression - Severity scale (CGI-S) is a 7-point scale that requires the clinician to rate the severity of the patient's illness at the time of assessment. 1, normal, not at all ill; 2, borderline mentally ill; 3, mildly ill; 4, moderately ill; 5, markedly ill; 6, severely ill; or 7, extremely ill.
Change in the Quality of Life Enjoyment and Satisfaction Questionnaire (Q-LES-Q) ScoreWeek 0 - Week 8This assessment degree of enjoyment and satisfaction experienced by subjects in various areas of daily functioning. The minimum raw score on the Q-LES-Q-SF is 14, and the maximum score is 70 with a higher score indicating less enjoyment and satisfaction.
Change in Hamilton Rating Scale for Anxiety (HAM-A)Week 0 - Week 8The scale consists of 14 items, each defined by a series of symptoms, and measures both psychic anxiety (mental agitation and psychological distress) and somatic anxiety (physical complaints related to anxiety).Each item is scored on a scale of 0 (not present) to 4 (severe), with a total score range of 0-56, where \<17 indicates mild severity, 18-24 mild to moderate severity and 25-30 moderate to severe

Countries

United States

Participant flow

Pre-assignment details

The study consent 120 subjects. However, 29 subjects were considered screening failures and were not randomized.

Participants by arm

ArmCount
Quetiapine XR
Days 1-2 - 50 mg/day; Days 3-4 - 150mg/day; Day 5-End of Study - 300mg/day
46
Placebo for Quetiapine XR
Days 1-2 - 50 mg/day; Days 3-4 - 150mg/day; Day 5-End of Study - 300mg/day
45
Total91

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event71
Overall StudyLack of Efficacy37
Overall StudyLost to Follow-up88
Overall StudyNon-adherence with study procedures14
Overall StudyPhysician Decision02
Overall StudyWithdrawal by Subject15

Baseline characteristics

CharacteristicPlacebo for Quetiapine XRQuetiapine XRTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
45 Participants46 Participants91 Participants
Age, Continuous37.4 years
STANDARD_DEVIATION 11.3
38.0 years
STANDARD_DEVIATION 12
37.7 years
STANDARD_DEVIATION 11.6
Gender
Female
21 Participants22 Participants43 Participants
Gender
Male
24 Participants24 Participants48 Participants
Region of Enrollment
United States
45 participants46 participants91 participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
44 / 4637 / 45
serious
Total, serious adverse events
0 / 460 / 45

Outcome results

Primary

Change in the 17 Item Hamilton Rating Scale for Depression (HAM-D-17) Score

A score of 0-7 is considered to be normal. Hamilton Rating Scale total score ranges from 0-57 where higher scores are indicative of more depression.

Time frame: Week 0 - Week 8

ArmMeasureValue (MEAN)Dispersion
Quetiapine XRChange in the 17 Item Hamilton Rating Scale for Depression (HAM-D-17) Score-9.91 units on a scaleStandard Deviation 16.45
Placebo for Quetiapine XRChange in the 17 Item Hamilton Rating Scale for Depression (HAM-D-17) Score-7.41 units on a scaleStandard Deviation 8.13
Secondary

Change in Clinical Global Impressions of Improvement or Severity (CGI-I or S) Score

The Clinical Global Impression - Severity scale (CGI-S) is a 7-point scale that requires the clinician to rate the severity of the patient's illness at the time of assessment. 1, normal, not at all ill; 2, borderline mentally ill; 3, mildly ill; 4, moderately ill; 5, markedly ill; 6, severely ill; or 7, extremely ill.

Time frame: Week 0 - Week 8

ArmMeasureValue (MEAN)Dispersion
Quetiapine XRChange in Clinical Global Impressions of Improvement or Severity (CGI-I or S) Score-1.10 units on a scaleStandard Deviation 1.16
Placebo for Quetiapine XRChange in Clinical Global Impressions of Improvement or Severity (CGI-I or S) Score-0.8 units on a scaleStandard Deviation 1.21
Secondary

Change in Hamilton Rating Scale for Anxiety (HAM-A)

The scale consists of 14 items, each defined by a series of symptoms, and measures both psychic anxiety (mental agitation and psychological distress) and somatic anxiety (physical complaints related to anxiety).Each item is scored on a scale of 0 (not present) to 4 (severe), with a total score range of 0-56, where \<17 indicates mild severity, 18-24 mild to moderate severity and 25-30 moderate to severe

Time frame: Week 0 - Week 8

ArmMeasureValue (MEAN)Dispersion
Quetiapine XRChange in Hamilton Rating Scale for Anxiety (HAM-A)-9.54 units on a scaleStandard Deviation 7.58
Placebo for Quetiapine XRChange in Hamilton Rating Scale for Anxiety (HAM-A)-8.25 units on a scaleStandard Deviation 8.7
Secondary

Change in the Quality of Life Enjoyment and Satisfaction Questionnaire (Q-LES-Q) Score

This assessment degree of enjoyment and satisfaction experienced by subjects in various areas of daily functioning. The minimum raw score on the Q-LES-Q-SF is 14, and the maximum score is 70 with a higher score indicating less enjoyment and satisfaction.

Time frame: Week 0 - Week 8

ArmMeasureValue (MEAN)Dispersion
Quetiapine XRChange in the Quality of Life Enjoyment and Satisfaction Questionnaire (Q-LES-Q) Score0.11 units on a scaleStandard Deviation 0.22
Placebo for Quetiapine XRChange in the Quality of Life Enjoyment and Satisfaction Questionnaire (Q-LES-Q) Score-0.06 units on a scaleStandard Deviation 0.52
Secondary

Remission Rate (≤ 7) on Hamilton Rating Scale for Depression (HAM-D-17)

A score of 0-7 is considered to be normal. Hamilton Rating Scale total score ranges from 0-57 where higher scores are indicative of more depression. Remission is defined by the number of participants with Hamilton Rating Scale for Depression score equal to or less than 7.

Time frame: Week 0 - Week 8

ArmMeasureValue (NUMBER)
Quetiapine XRRemission Rate (≤ 7) on Hamilton Rating Scale for Depression (HAM-D-17)6 Participants
Placebo for Quetiapine XRRemission Rate (≤ 7) on Hamilton Rating Scale for Depression (HAM-D-17)6 Participants
Secondary

Response Rate (≥ 50% Improvement) on Hamilton Rating Scale for Depression (HAM-D-17)

A score of 0-7 is considered to be normal. Hamilton Rating Scale total score ranges from 0-57 where higher scores are indicative of more depression.

Time frame: Week 0 - Week 8

ArmMeasureValue (NUMBER)
Quetiapine XRResponse Rate (≥ 50% Improvement) on Hamilton Rating Scale for Depression (HAM-D-17)12 participants
Placebo for Quetiapine XRResponse Rate (≥ 50% Improvement) on Hamilton Rating Scale for Depression (HAM-D-17)11 participants

Source: ClinicalTrials.gov · Data processed: Mar 7, 2026