An observational study in Inflammatory Bowel Disease, Colitis, Ulcerative and Crohn's Disease, sponsored by Janssen-Cilag G.m.b.H. Recruiting at 1 site in Germany. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-11-03.
Sponsored by Janssen-Cilag G.m.b.H (part of Johnson & Johnson) · Observational
The purpose of this study is to characterize participants with Crohn's Disease (CD) and Ulcerative Colitis (UC) treated with Guselkumab in a real-world setting, and to assess the clinical effectiveness (how well the treatment works) in the overall population and in different participant subgroups. Furthermore patient-reported outcomes like fatigue, health-related quality of life (HRQoL), sexuality, work productivity and activity as well as treatment satisfaction will be assessed.
1,550 studies on the registry are indexed under Inflammatory Bowel Diseases; 426 are open to participants now.
This study's planned enrollment of 500 is above the median of 140 across 626 observational studies indexed under Inflammatory Bowel Diseases.
Browse Inflammatory Bowel Diseases studies →Janssen-Cilag G.m.b.H is the lead sponsor of 11 studies on the registry; 1 is open to participants now.
Counted across the registry records on this site, refreshed daily.
The study population will include participants with confirmed diagnosis of moderate-to-severe Crohn's disease (CD) or Ulcerative colitis (UC) disease.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Participants with confirmed diagnosis of moderate-to-severe UC or CD treated with guselkumab as per standard clinical practice will be enrolled. Only data available from clinical routine will be collected in this study. During the observational period, data will be collected at weeks 0 (baseline), 4, 8, 12, 24, 48, 72, and 96, where available as per clinical routine. The respective collection times relate to the first study dose of guselkumab.
Percentage of Participants Achieving Clinical Remission for Crohn's Disease (CD) as Measured by Harvey-Bradshaw Index (HBI)
Clinical remission for CD is defined as the HBI score less than or equal to (\<=) 4. HBI score is used to assess disease severity and treatment effectiveness.
Time frame: Week 48
Percentage of Participants Achieving Clinical Remission for Ulcerative Colitis (UC) as Measured by Partial Mayo Score (PMS)
Clinical remission for UC is defined as the PMS score \<=2 and a rectal bleeding subscore of 0. Mayo scoring system is used to assess disease severity and treatment effectiveness.
Time frame: Week 48
Time to Guselkumab Discontinuation
Time to guselkumab discontinuation (treatment persistency) will be reported.
Time frame: Up to Week 96
Change in Stool Frequency Within the First 4 Weeks of Guselkumab Administration
Change in stool frequency for participants will be asked, that is, how many bowel movements they had in last 24 hours, how many of those were very soft or liquid, or how many has occurred during the night.
Time frame: Up to Week 4
Change in Rectal Bleeding Within First 4 Weeks of Guselkumab Administration
Change in rectal bleeding for participants will be asked, that is, how severe were the rectal bleedings in the last 24 hours.
Time frame: Up to Week 4
Change in Abdominal Pain Within the First 4 Weeks of Guselkumab Administration
Change in abdominal pain for participants will be asked, that is, how severe was the abdominal pain in the last 24 hours.
Time frame: Up to Week 4
Change in Bowel Urgency and Nocturnal Bowel Movement (NBM) Within the First 4 Weeks of Guselkumab Administration
Change in bowel urgency and NBM for participants will be asked, that is, how severe were the bowel urgency and NBM in the last 24 hours.
Time frame: Up to Week 4
Percentage of Participants Achieving Clinical Response for CD as Measured by HBI
Clinical response for CD is defined as the HBI Score \<=4 or a decrease by greater than or equal to (\>=) 3. HBI score is used to assess disease severity and treatment effectiveness.
Time frame: Up to Week 96
Percentage of Participants Achieving Clinical Response for UC as Measured by PMS
Clinical response for UC is defined as the PMS \<4 or \>=30% reduction of baseline PMS. Mayo scoring system is used to assess disease severity and treatment effectiveness.
Time frame: Up to Week 96
Percentage of Participants Achieving Clinical Remission for CD as Measured by HBI
Clinical remission for CD is defined as the HBI Score \<=4. HBI score is used to assess disease severity and treatment effectiveness.
Time frame: Up to Week 96
Percentage of Participants Achieving Clinical Remission for UC as Measured by PMS
Clinical remission for UC is defined as the PMS score \<=2 and a rectal bleeding subscore of 0. Mayo scoring system is used to assess disease severity and treatment effectiveness.
Time frame: Up to Week 96
Percentage of Participants Achieving Corticosteroid-free Clinical Response for CD as Measured by HBI
Corticosteroid-free clinical response for CD is defined as HBI score \<=4 or decrease in HBI score \>=3 from baseline and no use of steroids for at least 30 days. HBI score is used to assess disease severity and treatment effectiveness.
Time frame: Up to Week 96
Percentage of Participants Achieving Corticosteroid-free Clinical Response for UC as Measured by PMS
Corticosteroid-free clinical response for UC is defined as the PMS Score \<=4 or \>= 30% reduction of baseline and no use of steroids for at least 30 days. Mayo scoring system is used to assess disease severity and treatment effectiveness.
Time frame: Up to Week 96
Percentage of Participants Achieving Corticosteroid-free Clinical Remission for CD as Measured by HBI
Corticosteroid-free clinical remission for CD is defined as no use of steroids for at least 30 days and HBI score \<=4. HBI score is used to assess disease severity and treatment effectiveness.
Time frame: Up to Week 96
Percentage of Participants Achieving Corticosteroid-free Clinical Remission for UC as Measured by PMS
Corticosteroid-free clinical remission for UC is defined as no use of steroids for at least 30 days and PMS \<2 and a rectal bleeding subscore of 0. Mayo scoring system is used to assess disease severity and treatment effectiveness.
Time frame: Up to Week 96
Percentage of Participants with C-reactive Protein (CRP) Less Than or Equal to 5 milligram/litre (mg/L)
Percentage of participants with CRP level \<=5 mg/L, indicating normalization of systemic inflammation will be reported.
Time frame: Up to Week 96
Change in CRP Levels
Change in CRP levels will be reported to assess inflammation status.
Time frame: Up to Week 96
Percentage of Participants with Fecal Calprotectin (fCAL) Levels Less Than or Equal to 250 microgram/gram (mcg/g)
Percentage of participants with fCal levels \<=250 mcg/g will be reported.
Time frame: Up to Week 96
Change in fCAL Levels
Change in fCAL levels indicating progression or improvement in inflammation will be reported.
Time frame: Up to Week 96
Change in Hemoglobin Levels
Change in hemoglobin levels to assess anemia, measured in gram per deciliter (g/dL) will be reported.
Time frame: Up to Week 96
Change in Transferrin Saturation
Serum iron and total iron binding capacity will be combined to report transferrin saturation in percentage (%).
Time frame: Up to Week 96
Change from Baseline in Health-related Quality of Life (HRQoL) as Measured by IBD Symptoms
Health related quality of life changes as measured by IBD symptoms (abdominal pain, bowel urgency, nocturnal bowel movements (NBM), rectal bleeding, stool frequency) will be reported. IBD related symptoms changes will be reported by patient diary.
Time frame: Baseline up to Week 96
Change from Baseline in General Quality of Life Measured by Short Health Scale (SHS) Score
Quality of life will be assessed by SHS score. SHS is a health related quality of life questionnaire in which the participants rate the disease impact on 4 important aspects of subjective health (symptoms, function, worry, and general well-being). Responses are scored on 100-millimeter (mm) visual analogue scales and presented as individual scores for each of the four questions. The scores are then added for a total score. Total score ranges from 0 (low disease activity) to 100 (high disease activity).
Time frame: Baseline up to Week 96
Change from Baseline in IBD-Specific Quality of Life Measured by Short Inflammatory Bowel Disease Questionnaire (SIBDQ) Scale Score
SIBDQ is a 10-item instrument developed to assess the participants perception of their health status specifically related to IBD over the past two weeks. The SIBDQ evaluates the following dimensions: psychological well-being (feelings of emotional health and stability), physical well-being (the impact of disease symptoms on physical health), social function (the influence of the disease on social activities and interactions) and digestive function (the effect of gastrointestinal symptoms on daily life). The total score ranges from 10 (worst health) to 70 (best health).
Time frame: Baseline up to Week 96
Change from Baseline in Fatigue Measured by Functional Assessment of Chronic Illness Therapy- Fatigue (FACIT-F) Score
FACIT-F is a 13-item questionnaire that evaluates the impact of fatigue on a participants daily life over the past week. It measures various aspects, including: emotional well-being, physical well-being, functional well-being and social/family well-being. The total FACIT-Fatigue score ranges from 0 to 52, with a higher score indicating less fatigue.
Time frame: Baseline up to Week 96
Change from Baseline in Treatment Satisfaction Measured by Treatment Satisfaction Questionnaire for Medication-9 (TSQM-9) Scores
TSQM-9 is a 9-item general instrument that measures the major dimensions of satisfaction with a medication. The questionnaire consists of 3 domains: effectiveness, convenience and side effects. The scores of each domain range from 0 to 100 with higher scores representing higher satisfaction on that domain.
Time frame: Baseline up to Week 96
Change from Baseline in Work Productivity and Activity Impairment Measured by Work Productivity and Activity Impairment (WPAI) Questionnaire
The WPAI consist of four types of scores: absenteeism (work time missed), presenteeism (impairment at work/reduced on-the-job effectiveness), work productivity loss (overall work impairment / absenteeism plus presenteeism) and activity impairment. Outcomes are expressed as impairment percentages, with higher numbers indicating greater impairment and less productivity that is worse outcomes.
Time frame: Baseline up to Week 96
Change from Baseline in Sexuality Measured by Intimacy and Sexuality Questionnaire (ISQ)-IBD
The ISQ-IBD is a 5-item questionnaire designed to assess the impact of chronic IBD on participants sexual well-being. Participants are asked to evaluate their situation over the past seven days, with responses tailored to include individuals who may not currently be sexually active. The questionnaire measures various aspects, including: impact of disease on sexual life, satisfaction with physical affection, fear of sexual activity, perceived fear from partner and satisfaction with sexual activity frequency.
Time frame: Baseline up to Week 96
Number of Participants with Adverse Events (AEs) and Serious Adverse Events (SAEs)
An AE is any untoward medical event that occurs in a participant administered an investigational product, and it does not necessarily indicate only events with clear causal relationship with the relevant investigational product. An SAE is any untoward medical occurrence that at any dose: results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, is a suspected transmission of any infectious agent via a medicinal product and is an important medical event.
Time frame: Up to Week 108
Number of Participants with Special Situations
Special Situations include safety events of interest that require reporting for safety evaluation, but are not limited to: drug exposure during pregnancy; exposure to a product from breastfeeding; overdose of a product; suspected abuse/misuse of a product; inadvertent or accidental exposure; any failure of expected pharmacological action; unexpected therapeutic or clinical benefit from use of a product; medication error; suspected transmission of any infectious agent or Off-label use of a product.
Time frame: Up to Week 108
Plan to share: No
No publications or documents are linked to this record.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
Contact study teamGet an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.