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Efficacy of Mesalazine Combined With Biologics in the Treatment of Moderate to Severe Ulcerative Colitis

Efficacy of Mesalazine Combined With Biologics in the Treatment of Moderate to Severe Ulcerative Colitis: a Multicenter, Prospective, Randomized, Controlled Clinical Study

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05205603
Enrollment
438
Registered
2022-01-25
Start date
2022-01-15
Completion date
2025-01-15
Last updated
2026-04-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Biologics, Efficacy, Self, Mesalazine, Ulcerative Colitis

Keywords

ulcerative colitis, biologics, mesalazine

Brief summary

Endocopic remission rates of moderate to severe ulcerative colitis are low. Biologics including Vedolizumab, infliximab, and adalimumab are effective in induction and maintainence of ulcerative colitis. The role of 5-ASA in promoting a higher rate of endocsopic remission is unclear. We aim to evaluate the efficacy of combination of 5-ASA and biologics in treating ulcerative colitis.

Interventions

DRUGInfliximab

Infliximab, 5mg/kg at week 0,2,6 and schedule administration at every 8 weeks

DRUGVedolizumab

Vedolizumab, 300mg at week 0,2,6 and schedule administration at every 8 weeks

DRUGMesalazine

Mesalazine, 4-6g/d, systemic and/or topical administration

Sponsors

Sixth Affiliated Hospital, Sun Yat-sen University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

1. Patients with moderate and severe ulcerative colitis; 2. Subjects were above 18 years old and below 80 years; 3. Indications of 5-ASA or biological treatment; 4. According to the clinical symptoms, ulcerative colitis was diagnosed by endoscopic changes, pathological manifestations. The disease activity of UC was assessed according to the modified Mayo scoring system (modified Mayo: 6\~12 for patients with moderate to severe ulcerative colitis); 5. If the subject is a woman, a pregnancy test at baseline is needed to exclude pregnancy. Female patients must follow the contraceptive recommendations of the project; 6. Subjects must be able and willing to provide written informed consent and comply with the requirements of this study protocol.

Exclusion criteria

1. No indications of 5-ASA or biological treatment; 2. ulcerative colitis patients who had previously undergone a partial colectomy; 3. Patients who are unable to use 5-ASA for a long time; 4. Patients with severe, progressive, or uncontrolled kidney, liver, blood, or endocrine diseases or symptoms; 5. Presence of infected persons, Patients with a contraindication to the use of biological agents such as C. difficile infection or other intestinal pathogens, active tuberculosis or intestinal tuberculosis infection, human immunodeficiency virus (HIV) infection, active hepatitis B or hepatitis C (defined as: ① HBV: hepatitis B surface antigen (HBs Ag) positive (+), Or patients with positive for hepatitis B core antibody (HBcAb) and the qualitative test results of HBV deoxyribonucleic acid (DNA) polymerase chain reaction (PCR) meet the detection criteria; ② HCV: Any patient with an anti-HCV antibody (HCV Ab) -positive patient with a detectable HCV ribonucleic acid (RNA); 6. Patients with a history of gastrointestinal dysplasia, or dysplasia on any biopsy performed on endoscopy, excluding low-grade dysplasia lesions; known history of lymphoproliferative disease (including lymphoma), or signs and symptoms (e. g., lymphadenopathy and / or splenomegaly); patients with current or previous malignancy; 7. Has been involved in other clinical studies.

Design outcomes

Primary

MeasureTime frameDescription
endoscopic remission rate at 12 months12 months after first intervention administrationendoscopic remission rate at 12 months

Secondary

MeasureTime frameDescription
normalization rate of serum biomarker at 12 months12 months after first intervention administrationnormalization rate of serum biomarker at 12 months
normalization rate of serum biomarker at 6 months6 months after first intervention administrationnormalization rate of serum biomarker at 6 months
clinical remission rate at 12 months12 months after first intervention administrationclinical remission rate at 12 months
clinical remission rate at 6 months6 months after first intervention administrationclinical remission rate at 6 months
clinical response rate at 12 months12 months after first intervention administrationclinical response rate at 12 months
clinical response rate at 6 months6 months after first intervention administrationclinical response rate at 6 months
endoscopic remission rate at 6 months6 months after first intervention administrationendoscopic remission rate at 6 months
endoscopic response rate at 12 months12 months after first intervention administrationendoscopic response rate at 12 months
endoscopic response rate at 6 months6 months after first intervention administrationendoscopic response rate at 6 months
life quality changes at 12 months12 months after first intervention administrationlife quality evaluated by IBDQ (inflammatory bowel disease questionnaire) at 12 months
life quality changes at 6 months6 months after first intervention administrationlife quality evaluated by IBDQ (inflammatory bowel disease questionnaire) at 6 months

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 30, 2026