Study type

Study topic

Human medicinal product

Study type

Non-interventional study

Scope of the study

Disease epidemiology
Effectiveness study (incl. comparative)
Non-interventional study

Non-interventional study design

Other

Non-interventional study design, other

A longitudinal, retrospective, non-interventional. multi-center observational study
Study drug and medical condition

Name of medicine

XELJANZ

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

TOFACITINIB

Anatomical Therapeutic Chemical (ATC) code

(L04AF01) tofacitinib
tofacitinib

Medical condition to be studied

Colitis ulcerative
Population studied

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)

Estimated number of subjects

160
Study design details

Main study objective

Examine the disease characteristics and outcomes in ulcerative colitis patients granted access to tofacitinib in Australia

Outcomes

- Clinical response rate (decrease in the partial Mayo score by 2 or partial Mayo score <2) at end of induction (week 8-12) and week 16,
- Remission rate at end of induction (week 8-12) / week 16
- Proportion of patients on tofacitinib completing induction therapy (8 or 16 weeks)
- Persistence of response up to week 52 Resolution of rectal bleeding at end of induction
- Endoscopic healing Cessation of steroids
- Steroid free remission at end of induction and at week 48
- Change in CRP & cholesterol (LDL/HDL) levels
- Colectomy rate

Data analysis plan

Descriptive summary statistics for continuous variables will be used to describe the study population including number of participants, mean, standard deviation, median and range.
Categorical variables will be described with frequency counts and percentages.
Pre-specified groups for statistical analysis include remitters, responders, and non-responders at the specified time points.
P values will be calculated from chi-square for categorical variables and t-tests for continuous variables with normal distribution and non-parametric testing for non-normally distributed data.
Kaplan-Meier survival analyses will be used to analyse individual predictors and display survival curves. Cox proportional hazards regression will be used to analyse multivariable survival data.