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Not yet recruitingNCT07417696Updated Feb 18, 2026

Palmitoleic Acid Combined With Infliximab for Promoting Intestinal Mucosal Healing in Crohn's Disease

A Phase 4 interventional study of Palmitoleic Acid + Infliximab and Infliximab in Crohn's Disease, sponsored by Chinese Medical Association. Not yet recruiting. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2026-02-18.

Sponsored by Chinese Medical Association · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
400
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
All
01

Study summary

This study aims to evaluate whether the combination of palmitoleic acid with infliximab can improve intestinal mucosal healing in patients with Crohn's disease compared with infliximab alone.

Read the detailed description

This is a prospective, randomized, controlled, open-label clinical study designed to evaluate the efficacy of palmitoleic acid combined with infliximab in patients with Crohn's disease.

Eligible patients will be randomly assigned to receive either intravenous infliximab at standard clinical doses plus daily oral palmitic acid supplementation, or intravenous infliximab alone. The primary endpoint is complete mucosal healing at Week 26. Secondary endpoints include endoscopic remission, endoscopic response, clinical remission and clinical response at Week 26.

02

Conditions studied

  • Crohn's Disease

Keywords

  • Infliximab
  • Palmitoleic acid
  • Mucosal healing
  • Inflammatory bowel disease
03

In context

Crohn Disease

1,992 studies on the registry are indexed under Crohn Disease; 478 are open to participants now.

This study's planned enrollment of 400 is above the median of 67 across 1,260 interventional studies indexed under Crohn Disease.

Browse Crohn Disease studies →

Lead sponsor

Chinese Medical Association is the lead sponsor of 40 studies on the registry; 9 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

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.

Inclusion criteria

  1. Adult patients aged 18 to 75 years.
  2. Established diagnosis of Crohn's disease confirmed by radiologic, histologic, or endoscopic evidence.
  3. Active Crohn's disease at screening, defined as a Crohn's Disease Activity Index (CDAI) score between 220 and 450 (inclusive).
  4. Adequate cardiac, renal, and hepatic function, as assessed by the investigator based on screening laboratory tests, physical examination, and medical history, without findings that would pose an undue risk for study participation.
  5. Willingness and ability to provide written .
  6. Agreement to undergo all scheduled study procedures, including up to 3 endoscopic evaluations.

Exclusion criteria

Exclusion Criteria:

  1. Use of any biologic therapy (e.g., infliximab, adalimumab, ustekinumab, vedolizumab) within 8 weeks prior to screening.
  2. Use of supplements containing fish oil or other lipid supplements (e.g., macadamia oil, krill oil, flaxseed, primrose oil, sea buckthorn oil) within 8 weeks prior to screening.
  3. History of any intestinal resection or other Crohn's disease-related surgery.
  4. History of or active chronic or recurrent infectious disease.
  5. History of or current .
  6. Pregnancy, lactation, or intention to become pregnant during the study period.
  7. Known to infliximab or palmitoleic acid preparations.
Terms in these criteria, in plain language(3)

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.

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.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
400 participants (estimated)

Study arms

  • Experimental
    Palmitoleic Acid + Infliximab

    Drug: Palmitoleic Acid + Infliximab

  • Active comparator
    Infliximab alone

    Drug: Infliximab

Interventions

  • DrugPalmitoleic Acid + Infliximab

    Drug pages: Palmitoleic acid · Infliximab

    Patients will be administered oral palmitoleic acid at a dose of 720 mg once daily for 26 consecutive weeks, starting at Week 0. Concurrent infliximab will be administered intravenously at the standard dose of 5 mg/kg at Weeks 0, 2, and 6, followed by every 8 weeks thereafter.

  • Patients will receive infliximab alone administered intravenously at the standard dose of 5 mg/kg at Weeks 0, 2, and 6, followed by every 8 weeks thereafter.

06

What researchers measure

Primary outcomes

  1. Complete mucosal healing

    Complete mucosal healing is defined as the absence of ulceration, as determined by ileocolonoscopic examination.

    Time frame: From enrollment to the end of treatment at 26 weeks

Secondary outcomes

  1. Endoscopic remission

    Endoscopic remission is defined as a simple endoscopic score for Crohn's Disease (SES-CD) score of \<=4. The SES-CD evaluates 4 endoscopic variables-ulcer size, proportion of the surface area that is ulcerated, proportion of the surface area affected, and stenosis-in 5 segments evaluated during ileocolonoscopy (ileum, right colon, transverse colon, left colon, and rectum). The score for each endoscopic variable is the sum of values obtained for each segment. The SES-CD total is the sum of the 4 endoscopic variable scores from 0 to 56, where higher scores indicate more severe disease.

    Time frame: From enrollment to the end of treatment at 26 weeks

  2. Endoscopic response

    Endoscopic response is defined as a reduction in SES-CD from Baseline by \>=50%.

    Time frame: From enrollment to the end of treatment at 26 weeks

  3. Clinical remission

    Clinical remission is defined as Crohn's Disease Activity Index (CDAI) of \<=150 points. CDAI is a scoring system for the assessment of Crohn's Disease Activity, index values of 150 and below are associated with quiescent disease; values above that indicate active disease and values above 450 are seen with extremely severe disease.

    Time frame: From enrollment to the end of treatment at 26 weeks

  4. Clinical response

    Clinical response is defined as CDAI decrease from Baseline of \>=100 points.

    Time frame: From enrollment to the end of treatment at 26 weeks

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Apr 2026; primary completion for Mar 2029, 35 months later.

Of 54 non-industry phase 4 interventional studies under Crohn Disease, half reached primary completion within 56 months of starting (the median), counting those still running; a quarter within 44 and three quarters within 71. This study's planned 35 months is below that.

Counting every sponsor, half of 70 studies reached it within 56 months; a quarter within 35 and three quarters within 68.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 11, 2026
First posted
Feb 18, 2026
StartEst.
Apr 1, 2026
Primary completionEst.
Mar 31, 2029
CompletionEst.
Mar 31, 2029
Last update
Feb 18, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 18, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT07417696
Lead sponsor
Chinese Medical Association
Responsible party
Sheng-hong Zhang (Chief Physician, Professor, Chinese Medical Association) — Principal investigator
First posted
Feb 18, 2026
Start date
Apr 1, 2026 (estimated)
Primary completion
Mar 31, 2029 (estimated)
Completion
Mar 31, 2029 (estimated)
Last update
Feb 18, 2026

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Feb 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drugs tested here: Palmitoleic acid · Infliximab

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