ClinicalTrials.gg
Status unknownNCT03526796HBOT-pouchUpdated May 16, 2018

Hyperbaric Oxygen Therapy for Antibiotic Refractory Pouchitis

An interventional study of Hyperbaric oxygen therapy in Pouchitis and Hyperbaric Oxygen Therapy, sponsored by Jinling Hospital, China. Status unknown at 1 site in China. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2018-05-16.

Sponsored by Jinling Hospital, China · Not applicable, Interventional, and Treatment

The sponsor has not verified this record recently (last verified May 2018), so the status shown — last known as Not yet recruiting — may be out of date.
Phase
Not applicable
Study type
Interventional
Enrollment
20
Allocation
Not applicable
Ages
18 Years to 75 Years
Sex
All
01

Study summary

The aim of current study is to evaluate the effect of hyperbaric oxygen therapy for the treatment of chronic antibiotic-refractory pouchitis.

Read the detailed description

Pouch ischemia plays an important role in the pathogenesis of pouchitis after IPAA surgery for ulcerative colitis. Obese Male patients are at high risk for pouchitis because of mesenteric tension. Excessive weight gain is associated with an increased risk for pouch failure in patients with restorative proctocolectomy. Also, patients with an 'S' pouch hardly ever develop chronic pouchitis, owing to the additional length of bowel loop along with mesentery when attached to the anal transitional zone. The treatment of chronic antibiotic-refractory pouchitis(CARP) is difficult.

Hyperbaric oxygen therapy(HBOT) have been proven effecitve in the treatment of inflammatory bowel diseases(IBD). Meta-analysis revealed that the overall response rate was 86% (85% CD, 88% UC), and of the endoscopic response rate to HBOT is 100%. The possible mechanism might be due to the prmoted wound healing by increasing oxygen delivery to hypooxic tissues and changes in inflammatory and immunological mediators.

Therefore, the aim of current study is to examine the therapeutic effect of HBOT for chronic antibiotic-refractory pouchitis(CARP).

02

Conditions studied

  • Pouchitis
  • Hyperbaric Oxygen Therapy

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Keywords

  • Pouchitis
  • Hyperbaric oxygen therapy
03

In context

Pouchitis

50 studies on the registry are indexed under Pouchitis; 12 are open to participants now.

This study's planned enrollment of 20 is close to the median of 20 across 42 interventional studies indexed under Pouchitis.

Browse Pouchitis studies →

Lead sponsor

Jinling Hospital, China is the lead sponsor of 131 studies on the registry; 35 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

  • IPAA performed for ulcerative colitis;
  • Pouchitis Disease Activity Index (PDAI) scores ≥7;
  • Antibiotic pouchitis(CARP), defined as patients who do not respond to conventional 2-week, single-agent antibiotic therapy including metronidazole,ornidazole,tinidazole, or ciprofloxacin
  • 18-75years
  • given
  • Able and willing to comply with all trial procedures
  • Including prepouch ileitis

Exclusion criteria

Exclusion Criteria:

  • Crohn's disease of the pouch
  • Pouchitis after IPAA for FAP
  • Isolated cuffitis
  • with cocomttant Primary sclerosing cholangitis (PSC)
  • Pouch strictures
  • Abscess/Sinuses
  • Perianal disease
  • Active
  • Uncontrolled systemic diseases
  • History of noninfammatory disease of the pouch
  • Decreased pouch compliance
  • Irritable pouch syndrome
  • Afferent or efferent limb obstruction
  • Needing oral or topical or 5-ASA
  • Major physical or psychiatric illness within the last 6m
  • Active use of cholestyramine, NSAIDs or aspirin
  • Pregnant, breast feeding
  • co-morbidities causing untolerant or unsuitable for hyperbaric oxygen therapy.
Terms in these criteria, in plain language(5)

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.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

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.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
20 participants (estimated)

Study arms

  • Experimental
    Hyperbaric oxygen therapy

    Patients who recieve hyperbaric oxygen therapy will be maintained at 2.4 ATA with 100% oxygen for 90 min and then decompressed back to 1 ATA. The treatment duration is 4 weeks and extends to 6 weeks if necessary.

    Procedure: Hyperbaric oxygen therapy

Interventions

  • ProcedureHyperbaric oxygen therapy

    Patients were maintained at 2.4 ATA with 100% oxygen for 90 min and then decompressed back to 1 ATA. The treatment duration is 4 weeks and extends to 6 weeks if necessary.

06

What researchers measure

Primary outcomes

  1. Remission rate

    Defined by a pouchitis disease activity index (PDAI) score of \< 7 points

    Time frame: up to 4 weeks

Secondary outcomes

  1. Response rate

    Defined as a ≥ 3-point reduction in the 18-point PDAI scoring system

    Time frame: up to 4 weeks

  2. Symptomatic improvement rate

    Reduction of PDAI clinical subscore \>2 points.

    Time frame: up to 4 weeks

  3. Endoscopic improvement rate

    Reduction of PDAI endoscopic subscore \>2 points.

    Time frame: up to 4 weeks

  4. Fecal calprotectin level

    Fecal caprotectin level before and after treatment

    Time frame: up to 4 weeks

  5. Plasma C-reactive protein level

    Plasma caprotectin level before and after treatment

    Time frame: up to 4 weeks

  6. Plasma Interleukin-6 level

    Plasma Interleukin-6 level before and after treatment

    Time frame: up to 4 weeks

  7. Fecal microbiome

    Fecal microbiome analysis using 16S RNA technique before and after treatment

    Time frame: up to 4 weeks

  8. Adverse events

    Any adverse event deemed as possibly, probably, or definitely related to investigational treatment during 2-3 weeks of treatment.

    Time frame: up to 4 weeks

07

Study locations

1 site
  • Department of Generay Surgery, Jinling hosptal, Medical School of Nanjing University
    Nanjing, Jiangsu 210000, China
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Start is estimated for Jun 2018; primary completion for May 2020, 23 months later.

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

Registered
Apr 14, 2018
First posted
May 16, 2018
StartEst.
Jun 1, 2018
Primary completionEst.
May 2020
CompletionEst.
Jul 2020
Last update
May 16, 2018
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 May 16, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03526796
Responsible party
Jianfeng Gong (Associate Professor, Jinling Hospital, China) — Principal investigator
First posted
May 16, 2018
Start date
Jun 1, 2018 (estimated)
Primary completion
May 2020 (estimated)
Completion
Jul 2020 (estimated)
Last update
May 16, 2018

Study contacts

Jianfeng Gong, MD
Contact
gongjianfeng@hotmail.com
+86-25-80860036
Jianfeng Gong, MD
principal investigator · Jinling Hospital, China

Oversight

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

Not currently enrolling

This study is status unknown, as verified in May 2018. You cannot join it, but the record below documents what was studied.

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