Study Purpose

The OPTIMIZE Trial compares whether iDose dashboard-driven infliximab dosing (iDose-driven dosing) is more effective and safer than standard infliximab dosing for inducing and maintaining disease remission in moderately to severely active CD.

Recruitment Criteria

Accepts Healthy Volunteers

Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms

Study Type

An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.

An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes.

Searching Both is inclusive of interventional and observational studies.

Eligible Ages 16 Years and Over
Gender All
More Inclusion & Exclusion Criteria

Inclusion Criteria:

1. Males or nonpregnant, nonlactating females aged 16 to 80 years inclusive. 2. Diagnosis of CD prior to screening using standard endoscopic, histologic, or radiologic criteria. Subjects with patchy colonic inflammation initially diagnosed as indeterminate colitis would meet inclusion criteria, if the investigator feels that the findings are consistent with CD. 3. Moderately to severely active CD, defined by a total Crohn's Disease Activity Index (CDAI) score between 220 and 450 points, and at least 1 of the following: 1. Elevated CRP > upper limit of normal ) 2. Elevated fecal calprotectin (FC) (> 250 μg/g) 3. SES-CD > 6, or SES-CD > 3 for isolated ileal disease. 4. Physician intends to prescribe IFX as part of the usual care of the subject. 5. No previous use of IFX. 6. Able to participate fully in all aspects of this clinical trial. 7. Written informed consent must be obtained and documented.

Exclusion Criteria:

1. Subjects with any of the following CD-related complications: 1. Abdominal or pelvic abscess, including perianal. 2. Presence of stoma or ostomy. 3. Isolated perianal disease. 4. Obstructive disease, such as obstructive stricture. 5. Short gut syndrome. 6. Toxic megacolon or any other complications that might require surgery, or any other manifestation that precludes or confounds the assessment of disease activity (CDAI or SES-CD) 7. Total colectomy. 2. History or current diagnosis of ulcerative colitis, indeterminate colitis, microscopic colitis, ischemic colitis, colonic mucosal dysplasia, or untreated bile acid malabsorption. 3. Current bacterial or parasitic pathogenic enteric infection, according to SOC assessments, including: Clostridioides difficile; tuberculosis; known infection with hepatitis B or C virus; known infection with HIV; sepsis; abscesses. History of the following: opportunistic infection within 6 months prior to screening; any infection requiring antimicrobial therapy within 2 weeks prior to screening; more than 1 episode of herpes zoster or any episode of disseminated zoster; any other infection requiring hospitalization or intravenous antimicrobial therapy within 4 weeks prior to screening. 4. Has any malignancy or lymphoproliferative disorder other than nonmelanoma cutaneous malignancies or cervical carcinoma in situ that has been treated with no evidence of recurrence within the last 5 years. 5. Known primary or secondary immunodeficiency. 6. PNR to adalimumab, defined as no objective evidence of clinical benefit after 14 weeks of therapy. 7. Subjects with failure to a prior biologic, defined as PNR or SLR, will be excluded when a maximum of 40% of the planned enrollment (approximately 78 subjects) have failure to prior biologic exposure. 8. Concomitant use of oral corticosteroid therapy exceeding prednisone 40 mg/day, budesonide 9 mg/day, or equivalent. 9. Presence of any medical condition or use of any medication that is a contraindication for IFX use, as outlined on the product label. 10. A concurrent clinically significant, serious, unstable, or uncontrolled underlying cardiovascular, pulmonary, hepatic, renal, GI, genitourinary, hematological, coagulation, immunological, endocrine/metabolic, or other medical disorder that, in the opinion of the investigator, might confound the study results, pose additional risk to the subject, or interfere with the subject's ability to participate fully in the study. 11. Pregnant or lactating women, to be excluded based on the physician's usual practice for determining pregnancy or lactation status. 12. Known intolerance or hypersensitivity to IFX or other murine proteins.

Trial Details

Trial ID:

This trial id was obtained from, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.


Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans.

Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data.

Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs.

Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.

Phase 4
Lead Sponsor

The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.

Beth Israel Deaconess Medical Center
Principal Investigator

The person who is responsible for the scientific and technical direction of the entire clinical study.

Principal Investigator Affiliation N/A
Agency Class

Category of organization(s) involved as sponsor (and collaborator) supporting the trial.

Overall Status Not yet recruiting
Countries United States

The disease, disorder, syndrome, illness, or injury that is being studied.

Crohn Disease
Additional Details

Preliminary data show that proactive IFX optimization to achieve a threshold drug concentration during maintenance therapy (even if the patient is asymptomatic) compared to empiric dose escalation and/or reactive TDM is associated with better long-term outcomes including longer drug persistence, reduced risk of relapse, and fewer hospitalizations and surgeries. IFX dosing by weight only (i.e., mg/kg) may not be adequate for many patients as interindividual variability in drug clearance and other factors affecting IFX concentrations and PK are often not accounted for. Dosing calculators take into account all of these individual factors and improve the precision of dosing towards better personalized medicine. These systems have already been validated, and personalized dosing has shown clinical benefit in patients with IBD.

Arms & Interventions


Experimental: iDose-infliximab dosing

infliximab dosing based on the iDose dashboard

Active Comparator: SOC infliximab dosing

infliximab dosing based on standard-of-care


Drug: - Infliximab

infliximab using iDose to generate dosing

Contact a Trial Team

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Mount Sinai, New York, New York



Mount Sinai

New York, New York, 10029

Site Contact

Marla Dubinsky

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