Post-Marketing Use Of CT-P13 (Infliximab) For Standard Of Care Treatment Of Inflammatory Bowel Disease

Disease duration was defined as the number of months from initial diagnosis of inflammatory bowel disease (CD or UC) to the date of informed consent, which was recorded at the time of enrollment into the study (baseline).

Here, number of participants with either UC or CD, who switched from remicade to CT-P13; switched from CT-P13 to remicade and multiple switchers were reported.

Total dose of infusion received by the participants was calculated.

Number of participants by infusion frequency (weeks) were reported at baseline and categorized as follows: once a week; once every 2 weeks; once every 3 weeks; once every 4 weeks; once every 5 weeks; once every 6 weeks; once every 7 weeks; once every 8 weeks and others. Here, 'Others' category included all the frequencies apart from the mentioned categories.

Participants who had change in the dose of infusion (either dose reduction or increase in dose) were included and reported.

Participants who had change in infusion dose due to various reasons such as principal investigator's decision, participant's decisions, loss of response, lack of compliance, hypersensitivity, occurrence of adverse event (including adverse event special interest [AESI]/ serious adverse event [SAE]), positive for antibodies and other were reported. Here, 'Others' category included all reasons apart from the mentioned categories. A participant could have different reasons of dose change across visits, hence could be counted in more than one category.

An AE was any untoward medical occurrence in a participant who received study treatment without regard to possibility of causal relationship. SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death, initial or prolonged inpatient hospitalization, life-threatening experience (immediate risk of dying), persistent or significant disability or incapacity, congenital anomaly. Treatment-emergent were events between first dose of infusion up to month 24, that were absent before treatment or that worsened relative to pretreatment state. Hypersensitivity was the pre-defined TEAE of special Interest for this study. AEs included both serious and non-serious adverse events.

Clinical remission in participants was defined by a total Mayo score of 2 points or lower, with no individual sub score exceeding 1 point. Mayo score is an instrument designed to measure disease activity. It consisted of 4 sub scores: stool frequency, rectal bleeding, findings of centrally read flexible proctosigmoidoscopy and physician's global assessment, each sub score graded from 0 to 3 with higher scores indicating more severe disease. These scores were summed up to give a total score range of 0 to 12; where higher scores indicating more severe disease. The relapse of clinical remission was defined as the time from the date of first attaining CR to the date of relapse or death from any cause, whichever occurred first.

HBI is a simple index of CD activity. HBI measures 5 parameters; the general well-being (ranging from 0=very well to 4=terrible), abdominal pain ranging from 0 (none) to 3 (severe), number of liquid stools per day (no maximum score), presence of an abdominal mass on physical exam ranging from 0 (none) to 3 (definite and tender), and whether there are any complications ranging from 0=no complications, 1=Arthralgia; 2=Uveitis; 3=Erythema nodosum; 4=Aphthous ulcer; 5=Pyoderma gangrenosum; 6=Anal fissure; 7=New fistula and 8=abscess). The total HBI score is the sum of all the 5 individual parameters, the minimum score is 0 and there was no pre-specified maximum score as it depends on the number of liquids stools. Higher HBI scores=greater disease activity. The level of disease activity was interpreted as clinical remission (CR) (score less than [<] 5), mild disease (MD) (score equal to [=] 5 to 7), moderate disease (Mod D) (score=8 to 16) and severe disease (SD) (score more than [>] 16).

HBI is a simple index of CD activity. HBI measures 5 clinical parameters; the general well-being ranging from 0 (very well) to 4 (terrible), abdominal pain ranging from 0 (none) to 3 (severe), number of liquid stools per day (no maximum score), presence of an abdominal mass on physical exam ranging from 0 (none) to 3 (definite and tender), and whether there are any complications ranging from 0=no complications, 1=Arthralgia; 2=Uveitis; 3=Erythema nodosum; 4=Aphthous ulcer; 5=Pyoderma gangrenosum; 6=Anal fissure; 7=New fistula and 8=abscess). The total HBI score is the sum of all the 5 individual parameters, the minimum score is 0 and there was no pre-specified maximum score as it depends on the number of liquids stools. Higher HBI scores=greater disease activity. The level of disease activity was interpreted as clinical remission (CR) (HBI score < 5), mild disease (MD) (HBI score = 5 to 7), moderate disease (Mod D) (HBI score = 8 to 16) and severe disease (SD) (HBI score >16).

Mayo Score is an instrument to measure disease activity of UC. Score ranges from 0 to 12 points. It consists of 4 sub scores, each graded from 0 to 3. Higher scores = more severe disease. A Partial Mayo Score (PMS) (Mayo score without endoscopy) is comprised of 3 parameters: stool frequency ranging from 0 (normal number of stools) to 3 (having >=5 stools more than normal), the presence of rectal bleeding (ranging from 0=no blood seen to 3=blood alone passes), and physician's global assessment (ranging from 0=normal to 3=severe disease). The total partial Mayo score was the sum of all the parameters, score ranging from 0 (normal or inactive disease) to 9 (severe disease). Higher scores indicated more severe disease. The score was calculated if data were available for at least 1 of 3 Mayo sub scores. The level of disease activity was interpreted as clinical remission (CR) (PMS <2), mild disease (MD) (PMS=2 to 4), moderate disease (Mod D) (PMS=5 to 6) and severe disease (SD) (PMS >6).

Mayo Score is an instrument to measure disease activity of UC. Score ranges from 0 to 12 points. It consists of 4 sub scores, each graded from 0 to 3. Higher scores= more severe disease. A Partial Mayo Score (PMS) (Mayo score without endoscopy) is comprised of 3 parameters: stool frequency ranging from 0 (normal number of stools) to 3 (having >=5 stools more than normal), the presence of rectal bleeding ranging from 0 (no blood seen) to 3 (blood alone passes), and physician's global assessment ranging from 0 (normal) to 3 (severe disease). The total partial Mayo score was the sum of all the parameters, score ranging from 0 (normal or inactive disease) to 9 (severe disease). Higher scores indicated more severe disease. The score was calculated if data were available for at least 1 of 3 Mayo sub scores. The level of disease activity was interpreted as clinical remission (CR) (PMS <2), mild disease (MD) (PMS=2 to 4), moderate disease (Mod D) (PMS=5 to 6) and severe disease (SD) (PMS >6).

The Montreal classification index for CD was used to classify the extent of the disease activity. It consisted of three parameters: age at diagnosis, location and behavior of the disease activity. There were four different age groups categorized: 16 years or younger, 17-40 years, over 40 years and missing.

The Montreal classification index for CD was used to classify the extent of the disease activity. It consisted of three parameters: age at diagnosis, location and behavior of the disease activity. There are four different disease locations presented: Location 1 (L1) is terminal ileum, Location 2 (L2) is colon, Location 3 (L3) is ileocolon and Location 4 (L4) is upper gastrointestinal (GI). The first three categories (L1-L3) was combined with L4 where disease sites coexisted.

The Montreal classification index for CD was used to classify the extent of the disease activity. It consists of two parameters: location and behavior of the disease activity. There were 4 different categories for the behavior of the disease activity: Behaviour 1 (B1) was nonstricturing (NS), nonpenetrating (NP); Behaviour 2 (B2) was structuring; Behaviour 3 (B3) was penetrating and p as perianal disease (p). The first 3 categories (B1 to B3) could be added with p to indicate coexisting perianal disease. Perianal disease (p) was defined as the presence of perianal abscesses or fistulae.

The Montreal classification index for Ulcerative Colitis (UC) was used to classify the extent and severity of the disease activity. There were three subgroups of UC defined by extent: Extent 1 (E1) =Ulcerative proctitis, Extent 2 (E2) =Left-sided UC and Extent 3 (E3) =Extensive UC.

The Montreal classification index for UC was used to classify the extent and severity of the disease activity. UC can be classified broadly into four disease activity/severity categories: Severity 0 (S0) = asymptomatic clinical remission; Severity 1 (S1) = Mild UC (passage of four or fewer stools/day [with or without blood], absence of any systemic illness, and normal inflammatory markers); Severity 2 (S2) = Moderate UC (passage of more than four stools per day but with minimal signs of systemic toxicity) and Severity 3 (S3) = Severe UC (passage of at least six bloody stools daily).

The fistula drainage assessment index was used to assess the improvement or remission of the disease activity of Crohn's Disease, based on 6 categories: remission (remission was defined as closure of all fistulae that were draining at baseline for at least two consecutive visits); improvement (improvement defined as a decrease from baseline in the number of open draining fistulae of 50% for at least two consecutive visits); worsened; unchanged; not accessible and missing disease activity.

C-reactive protein (CRP) was a laboratory measurement for evaluation of an acute phase reactant of inflammation through the use of an ultra-sensitive assay. A decrease in the level of CRP indicated reduction in inflammation and therefore improvement.

Here, the laboratory tests related to the treatment or assessment of Crohn's Disease or Ulcerative Colitis was fecal calprotectin.

Number of participants who had Imaging test results related to the treatment or assessment of Crohn's Disease or Ulcerative Colitis were reported.