Study type

Study topic

Human medicinal product

Study type

Non-interventional study

Scope of the study

Effectiveness study (incl. comparative)

Data collection methods

Secondary use of data
Non-interventional study

Non-interventional study design

Cross-sectional
Study drug and medical condition

Study drug International non-proprietary name (INN) or common name

QUETIAPINE FUMARATE
Population studied

Short description of the study population

Patients aged 18 and over with diagnoses of schizophrenia, bipolar disorder or major depressive disorder treated with Seroquel® or Seroquel® XR/quetiapine fumarate during the calendar periods 13 February - 31 August 2012 seen by general practitioners or psychiatrists in Germany and patients seen by general practitioners in the UK during the period 11 January 2012 - 31July 2012.

Age groups

Adults (18 to < 46 years)
Adults (46 to < 65 years)
Adults (65 to < 75 years)
Adults (75 to < 85 years)
Adults (85 years and over)

Special population of interest

Other

Special population of interest, other

Schizophrenia, bipolar disorder or major depressive disorder patients

Estimated number of subjects

600
Study design details

Main study objective

Determine whether physicians in the UK and Germany performmonitoring of patients treated with quetiapine fumurate and quetiapine fumarate XL/XR using select lab tests, measurements and counseling during encounters with patients and to document the proportion of physician encounters within the study sample where patient monitoring is performed.

Outcomes

The proportion of physician encounters where the following patient monitoring is performed: counseling patients on healthy lifestyle improvements, recording patient weight at initiation of treatment & during on-going treatment, and monitoring of: hyperlipidemia, signs and symptoms of hyperglycemia, and worsening of glucose control in patients with or at risk for diabetes mellitus

Data analysis plan

Age and risk factor adjusted proportion of patients receiving each metabolic monitoring test/assessment in each country UK and Germany is derived including confidence intervals (95%) associated with the proportions observed. In evaluating patient encounters meeting certainmonitoring characteristics, physician or physician practice is considered.A determination is made as to whether adjustment for any of the following factors is required (for factors with relatively complete ascertainment, > 60%): use of other antipsychotics in addition to quetiapine fumurate in past 6 months, overweight (from physician record based upon BMI > 25), age (50+), female gender, relevant family history, high blood pressure, high cholesterol, and history of cardiovascular disease (in past 12 months), previous lipid panel or blood glucose testing (in the past 12 months).
Documents
Study results
English (1.16 MB - PDF)View document