A study of guselkumab versus risankizumab in participants with moderately to severely active Crohn's Disease

ISRCTN ISRCTN39379437
DOI https://doi.org/10.1186/ISRCTN39379437
Clinical Trials Information System (CTIS) 2025-521590-13
Integrated Research Application System (IRAS) 1013251
Sponsor's protocol code number CNTO1959CRD3009
Sponsor Janssen-Cilag International N.V.
Funder Janssen Research and Development
Submission date
17/01/2026
Registration date
26/03/2026
Last edited
26/03/2026
Recruitment status
Not yet recruiting
Overall study status
Ongoing
Condition category
Digestive System
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Crohn’s disease (CD) is a long-term, progressive (worsens with time) and life-threatening disease of the digestive system. Inflammation due to the disease penetrates the lining of digestive tract and may cause ulcers to form. Although guselkumab and risankizumab are approved treatments, still more information is needed to understand which treatment works better for patients with moderately to severely active CD who did not respond to other treatments.
Guselkumab and risankizumab are monoclonal antibodies* that blocks interleukin 23 (IL-23)**.
Blocking the effects of IL-23 helps to reduce the inflammation that occurs in CD.
*A type of protein designed to recognise and attach to a specific target.
**A specific type of protein involved in inflammation.
In this study, researchers want to assess how well guselkumab works compared to risankizumab in patients with moderately to severely active CD.

Who can participate?
Participants aged 18 years or older with moderate to severely active CD who have previously failed
to respond to advanced therapies (ADT)*.
*New therapies to treat the disease.

What does the study involve?
The study consists of:
1. Screening period (up to 5 weeks)
2. Treatment period (up to Week 52): Participants will be randomly (by chance) assigned to
either:
a. Guselkumab
b. Risankizumab
3. Post-intervention safety follow-up (up to 12 weeks after last dose of guselkumab or
16 weeks after last dose of risankizumab)
Safety assessments include clinical laboratory tests, physical examinations, vital signs, pregnancy testing, and tuberculosis screening. All side effects will be monitored until the end of study (up to Week 165).

What are the possible benefits and risks of participating?
There is no established benefit to participants of this study.
In addition, if participants are put into the risankizumab treatment group they may not receive
guselkumab and may only receive risankizumab during this study unless specified.
Participants may experience some benefit from participation in the study that is not due to receiving study drug, but due to regular visits and assessments monitoring overall health. Participation may help other people with CD in the future.
Participants may have side effects from the drugs or procedures used in this study that may be mild to severe and even life-threatening, and they can vary from person to person. Potential risks include hypersensitivity (exaggerated response by the immune system) reactions, increased risk of infections, tuberculosis, presence of malignancies (spread of cancer to other parts of body), immunizations (vaccinations), transaminase elevations (liver enzymes that release due to damage caused to liver or muscles) after getting the study drug or risankizumab. Risks due to Risankizumab include elevation in lipid parameters (increase in fat levels in the blood). Risks due to study procedure include exposure to radiation through radiographs (images produced due to radiation) and CT (computed tomography; procedure that uses a computer linked to an x-ray machine to make a series of detailed pictures of areas inside the body) scans and bleeding and colonic perforation(tear in the wall of large intestine) due to endoscopy procedures (procedure in which an instrument is introduced into the body to view its internal parts). There are other, less frequent risks. The participant information sheet and informed consent form, which will be signed by every participant agreeing to participate in the study, includes a detailed section outlining the known risks to participating in the study.

Not all possible side effects and risks related to guselkumab are known at this moment. During the study, the sponsor may learn new information about guselkumab. The study doctor will tell
participants as soon as possible about any new information that might make them change their
mind about being in the study, such as new risks.To minimise the risk associated with taking part in the study, participants are frequently reviewed for any side effects and other medical events. Participants are educated to report any such events to their study doctor who will provide appropriate medical care. Any serious side effects that are reported to the sponsor are thoroughly reviewed by a specialist drug safety team. There are no costs to participants to be in the study. The sponsor will pay for the study drug and tests that are part of the study. The participant will receive reasonable reimbursement for study-related costs (e.g., travel/parking costs).

Where is the study run from?
Janssen-Cilag International N.V.

When is the study starting and how long is it expected to run for?
April 2026 to December 2030

Who is funding the study?
Janssen-Cilag International N.V.

Who is the main contact?
JanssenUKRegistryQueries@its.jnj.com

Contact information

Dr Besarte Vrellaku
Public

50-100 Holmers Farm Way
High Wycombe
HP12 4DP
United Kingdom

Email JanssenUKRegistryQueries@its.jnj.com
Dr Paul Harrow
Principal investigator

250 Euston Road
London
NW1 2PG
United Kingdom

Phone +44 7723016825
Email paul.harrow1@nhs.net
Medical Information and Product Information Enquiry
Scientific

50-100 Holmers Farm Way
High Wycombe
HP12 4DP
United Kingdom

Phone +44 800 731 8450 / +44 1494 567 444
Email medinfo@its.jnj.com

Study information

Primary study designInterventional
AllocationRandomized controlled trial
MaskingOpen (masking not used)
ControlActive
AssignmentParallel
PurposeTreatment, Safety
Scientific titleA phase 3b, multicenter, randomized, open-label, active-controlled study to compare the efficacy and safety of guselkumab versus risankizumab in the treatment of participants with moderately to severely active Crohn’s Disease
Study acronymCHARGE
Study objectivesPrimary objective:
To assess how well guselkumab works compared to risankizumab at Week 52

Secondary objectives:
1. To further assess how well guselkumab works compared to risankizumab at Week 52
2. To assess how safe guselkumab is compared to risankizumab
Ethics approval(s)

Submitted 17/01/2026, not yet known (2 Redman Place, Stratford, London, E20 1JQ, United Kingdom; -; a@a), ref: 26/WA/0033

Health condition(s) or problem(s) studiedModerately to severely active Crohn's Disease
InterventionExperimental: Guselkumab
Participants will receive guselkumab induction dose subcutaneously (SC) at Weeks 0, 4, and 8 followed by guselkumab maintenance dose SC once every 4 weeks (q4w) from Week 12 through Week 52.

Experimental: Risankizumab
Participants will receive risankizumab induction dose intravenously (IV) at Weeks 0, 4, and 8 followed by risankizumab maintenance dose SC once every 8 weeks (q8w) from Week 12 through Week 52.
Intervention typeDrug
PhasePhase III
Drug / device / biological / vaccine name(s)Skyrizi 600mg concentrate for solution for infusion [Risankizumab] , Guselkumab [Guselkumab] , Skyrizi 360mg solution for injection in cartridge [Risankizumab]
Primary outcome measure(s)

Number of Participants with Deep Remission at Week 52 Deep remission is a composite endpoint defined as achieving both clinical remission and endoscopic remission at the participant level. Clinical remission is defined as Crohn’s Disease Activity Index (CDAI) score less than (<=) 4 with at least a 2-point reduction from baseline and no sub score greater than (>) 1 in any individual component and score can range from 0 to 56. Higher scores indicating severe disease.

Key secondary outcome measure(s)

1. Composite Endpoint of Number of Participants with Clinical Remission and Endoscopic Response at Week 52 Clinical remission is defined as CDAI score < 150-point. CDAI will be assessed by collecting information on 8 different CD-related variables: extra-intestinal manifestations, abdominal mass, weight, hematocrit, total number of liquid stools, abdominal pain/cramping, use of antidiarrheal drug(s), and/or opiates, and general well-being. In general, CDAI score ranges from 0 to approximately 600. Higher score indicates higher disease activity. Endoscopic response is defined as >50 percent (%) improvement from baseline in the SES CD or SES-CD score <= 2 or a decrease of at least 2 points in participants with a baseline score of 4 and isolated ileal disease. This is a composite endpoint defined to measure achievement of both clinical remission and endoscopic response. [Time Frame: At Week 52]
2. Number of Participants with Endoscopic Remission at Week 52 Endoscopic remission is defined as SES-CD <= 4 with at least a 2-point reduction from baseline and no sub score > 1 in any individual component and score can range from 0 to 56. Higher scores indicating severe disease. [Time Frame: At Week 52]
3. Number of Participants with Clinical Remission at Week 52 Clinical remission is defined as CDAI score < 150-point. CDAI will be assessed by collecting information on 8 different CD-related variables: extra-intestinal manifestations, abdominal mass, weight, hematocrit, total number of liquid stools, abdominal pain/cramping, use of antidiarrheal drug(s), and/or opiates, and general well-being. In general, CDAI score ranges from 0 to approximately 600. Higher score indicates higher disease activity. [Time Frame: At Week 52]
4. Number of Participants with Steroid-Free Clinical Remission at Week 52 Steroid-free clinical remission is defined as clinical remission at Week 52 and not receiving corticosteroids for at least 90 days prior to Week 52. Clinical remission is defined as CDAI score < 150-point. [Time Frame: At Week 52]
5. Number of Participants with Abnormalities in Laboratory Parameters Number of participants with abnormalities in laboratory parameters (hematology and chemistry) will be reported. [Time Frame: Up to Week 148]
6. Number of Participants With Change From Baseline in Laboratory Abnormalities Number of participants with change from baseline in laboratory abnormalities (hematology and chemistry) will be reported. [Time Frame: Up to week 148]
7. Number of Participants with Adverse Events (AEs), Serious AEs and AEs Leading to Discontinuation of Study Intervention An AE is any untoward medical occurrence in a participant administered a pharmaceutical (investigational or non investigational) product. An AE does not necessarily have a causal relationship with the treatment. 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 medically important. [Time Frame: Up to Week 165]

Completion date11/12/2030

Eligibility

Participant type(s)
Age groupMixed
Lower age limit18 Years
Upper age limit99 Years
SexAll
Target sample size at registration530
Key inclusion criteria1. Has CD or fistulizing Crohn's Disease (CD) of at least 12 weeks’ duration, with colitis, ileitis, or ileocolitis, confirmed at some time in the past by radiography, histology, and/or endoscopy
2. Have moderately to severely active CD, defined as baseline Crohn’s Disease Activity Index (CDAI) score greater than or equal to (>=) 220 but less than or equal to (<=) 450
3. Baseline endoscopic evidence of active ileal and/or colonic CD as assessed by central endoscopy reading at the screening endoscopy defined as a screening Simple Endoscopic Score for Crohn’s Disease (SES CD) >= 4 (for participants with isolated ileal disease) or >= 6 (for participants with colonic or ileocolonic disease), based on the presence of ulceration in any 1 of the 5 ileocolonic segments, resulting in the following specified ulceration component scores:
a. A minimum score of 1 for the component of “size of ulcers” AND
b. A minimum score of 1 for the component of “ulcerated surface"
4. In the opinion of the investigator, participant’s disease is appropriate to treat with the maintenance dosing regimens utilized in the study
5. Adhere to the requirements for concomitant medications for the treatment of CD as mentioned in the protocol
Key exclusion criteria1. Has complications of CD such as symptomatic strictures or stenoses, short gut syndrome, active draining stoma or significant fistulizing disease or any other manifestation anticipated to require surgery within the next year, could preclude the use of the CDAI to assess response to therapy, or would possibly confound the ability to assess the effect of treatment with guselkumab or risankizumab
2. Currently has or is suspected to have an abscess
3. Has an active fistula during screening or at Week 0 with an anticipated need for surgery
4. Has had any kind of bowel resection within 24 weeks, or any other intraabdominal or other major surgery within 12 weeks, before first dose of study intervention
5. Currently has a malignancy or has a history of malignancy within 5 years before screening
Date of first enrolment19/04/2026
Date of final enrolment16/11/2027

Locations

Countries of recruitment

  • United Kingdom
  • Austria
  • Belgium
  • Canada
  • China
  • Czech Republic
  • Denmark
  • France
  • Germany
  • Hungary
  • Italy
  • Netherlands
  • Poland
  • Slovakia
  • Spain
  • Sweden

Study participating centres

University College London Hospitals NHS Foundation Trust
250 Euston Road
London
NW1 2PG
England
University Hospitals Coventry and Warwickshire NHS Trust
Walsgrave General Hospital
Clifford Bridge Road
Coventry
CV2 2DX
England
Barts Health NHS Trust
The Royal London Hospital
80 Newark Street
London
E1 2ES
England
London North West University Healthcare NHS Trust
Northwick Park Hospital
Watford Road
Harrow
HA1 3UJ
England
Imperial College Healthcare NHS Trust
The Bays
St Marys Hospital
South Wharf Road
London
W2 1BL
England
Royal Free London NHS Foundation Trust
Royal Free Hospital
Pond Street
London
NW3 2QG
England
Norfolk and Norwich University Hospitals NHS Foundation Trust
Colney Lane
Colney
Norwich
NR4 7UY
England
Chelsea and Westminster Hospital NHS Foundation Trust
Chelsea & Westminster Hospital
369 Fulham Road
London
SW10 9NH
England

Results and Publications

Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryStored in non-publicly available repository
IPD sharing planThe data sharing policy of Johnson & Johnson Innovative Medicine is available at www.innovativemedicine.jnj.com/our-innovation/clinical-trials/transparency.
As noted on this site, requests for access to the study data can be submitted through Yale Open Data Access (YODA) Project site at yoda.yale.edu

Editorial Notes

19/01/2026: Trial's existence confirmed by NHS HRA.