Preliminary Clinical Study on the Effect of Bacillus Subtilis on the Efficacy of Infliximab in Patients With Crohn's Disease

Central South University

Status: Enrolling

Conditions: Mild to Severe Crohns Disease

Treatments: Dietary Supplement: Bacillus subtilis Capsules

Study type: Interventional

Funder types: Other

Identifiers

NCT07123207

2025-IFX-BS-XY3

Details and patient eligibility

About

The goal of this clinical trial is to evaluate the effect of supplementing Bacillus subtilis compared to the control group on the efficacy of Infliximab in patients with Crohn's disease, and to summarize the role of supplementing Bacillus subtilis in the treatment of CD patients.

Participants will be randomized into two groups: the Bacillus subtilis supplementation group and the control group. The patients in the Bacillus subtilis supplementation group received oral Bacillus subtilis capsules for 12 weeks. The control group did not receive additional intervention. Follow up once a week, and after the study, patients will come to the hospital to finish the evaluation indicators.

Full description

The goal of this clinical trial is to evaluate the effect of supplementing Bacillus subtilis compared to the control group on the efficacy of Infliximab in patients with Crohn's disease, and to summarize the role of supplementing Bacillus subtilis in the treatment of CD patients.

Participants will be randomized into two groups: the Bacillus subtilis supplementation group and the control group. Patients in the Bacillus subtilis supplementation group take oral Bacillus subtilis capsules once a day, one capsule per time, for 12 weeks, each containing 3×10⁹ CFU of Bacillus subtilis. The control group did not receive additional intervention. Follow up once a week, and after the study, patients will come to the hospital to finish the evaluation indicators.

Enrollment: 24 estimated patients

Sex: All

Ages: 18 to 75 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. Age ≥ 18 years old, ≤ 75 years old;
2. Patients clinically diagnosed with Crohn's disease shall refer to the Chinese Guidelines for the Diagnosis and Treatment of Crohn's Disease (Guangzhou, 2023) for diagnostic criteria;
3. Patients receiving treatment with Infliximab;
4. The patient is currently in the clinical active stage(CDAI≥150 or SES-CD≥3);
5. Agree to participate in this study and sign an informed consent form.

Exclusion criteria

Participants who meet any of the following criteria are not eligible for inclusion in this study.

1. Patients with ALT or AST exceeding the normal upper limit by more than twice, and TBIL exceeding the normal upper limit by more than twice;
2. Patients with creatinine clearance rate less than 60ml/min;
3. Patients with severe active infections in the intestines or other areas that require the use of antibiotics or antiviral drugs;
4. Patients with intestinal tuberculosis, other chronic intestinal infectious diseases, and intestinal malignant tumors;
5. Pregnant and lactating women;
6. The fasting blood glucose of patients with diabetes or screening period exceeds 7.0mmol/L or glycosylated hemoglobin exceeds 6.5%;
7. Merge patients with severe mental illness, drug use, alcohol abuse, etc. who are unable to cooperate with the study;
8. Have participated in any other clinical research within the first month prior to enrollment;
9. The researcher determined that any other disease or condition is not suitable for patients participating in this study.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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24 participants in 2 patient groups

Bacillus subtilis supplementation group

Experimental group

Description:

Patients in the Bacillus subtilis supplementation group take oral Bacillus subtilis capsules once a day, one capsule per time, for 12 weeks, each containing 3×10⁹ CFU of Bacillus subtilis.

Treatment:

Dietary Supplement: Bacillus subtilis Capsules

control group

No Intervention group

Description:

The control group did not receive additional intervention.