Irritable Bowel SyndromePhase 2/3NCT01893606
Multicenter Withdrawal Clinical Trials of N-acetyl Glucosamine Capsule for IBS-D Treatment
A Phase 2/3 study testing N-acetyl-D-glucosamine in people with Irritable Bowel Syndrome, run by Third Military Medical University at 1 site in China.
Trial summary
This study is a withdrawal randomized clinical trail to evaluate the clinical efficacy and safety of 1.1 chemical drugs N-acetyl glucosamine on Chinese IBS-D patients coming from four centers in chongqing. Read more about this study
- Who is it for?
- Ages 18 to 65 yearsHealthy volunteers can take part
- Conditions the study is for
- Irritable Bowel Syndrome
- What is being tested?
- N-acetyl-D-glucosamine
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 180 participants
- Where
- 1 siteChina
- Study dates
- Apr 2013to Jul 2017
- Phase
- Phase 2/3
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 65 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Man or woman, aged 18 to 65 years, inclusive.
- Based on the Roman III diagnostic criteria for diagnosis of IBS-D subjects, recurrent abdominal pain or discomfort (hard to describe the discomfort of pain), monthly attack within the past 3months at least 3 days. With two or more of the following three kinds of symptoms:
- At least a portion of the time abdominal pain or defecate increase when discomfort.
- At least a portion of the time abdominal pain or the row of loose stools when discomfort.
- At least a portion of the time abdominal pain or discomfort improved after defecation.
- Symptoms for at least 6 months before diagnosis
- Screening/import period pain intensity scores of the NRS week mean value are 3.0 plus and the days which at least more than one time a stool type are 6 or 7 type over 2 days/week.
- Voluntarily signed the informed consent form
Who cannot join
- The absorption of any known adverse
- History of gastrointestinal surgery ( not including appendectomy)
- History of organic gastrointestinal diseases: IBS, cancer etc.
- History of chronic diseases: anemia (hemoglobin<90g/L), pulmonary tuberculosis, diabetes or cardiovascular, liver, kidney, brain, and hematopoietic system and other serious diseases and psychiatric patients, AST(aspartate aminotransferase), ALT (alanine aminotransferase)> 1.5 times, BUN (blood urea nitrogen)> 1.2 times, Cr > 1.0 times normal.
- The disease of lactose intolerance, gallstones, endometriosis, easily confused with IBS symptoms of ;
- Progressive weight loss;
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- Concomitant medication is unable to stop but affect the gastrointestinal movement and function in the experiment, such as antibiotic drugs, the drugs of regulating the intestinal microecology;
- Concomitant medication use continuously for more than a week but affect the gastrointestinal movement and function in the experiment, such as parasympathetic inhibitors, nondepolarizing agent, antidiarrheal, opioid formulation, etc;
- Other researchers think not suitable for the list;
Trial locations and contacts
1 site in 1 country.
China1 site, 1 recruiting
- Recruiting
Daping hospital
Chongqing, Chongqing Municipality, 400038
Dongfeng Chen, doctor, 13883032812
About this study
Official title: Multicenter Randomized Withdrawal Clinical Trials of N-acetyl Glucosamine Capsule for Irritable Bowel Syndrome With Diarrhea (IBS-D) Treatment
This study is a withdrawal randomized clinical trail to evaluate the clinical efficacy and safety of 1.1 chemical drugs N-acetyl glucosamine on Chinese IBS-D patients coming from four centers in chongqing. 180 IBS-D patients in this research are accord with the Rome III diagnostic criteria, screening/import period pain intensity scores of the NRS week mean value are 3.0 plus and the days which at least more than one time a stool type are 6 or 7 type over 2 days/week. Test cycle includes screening/import period (2 weeks), open treatment period (8 weeks), a double-blind placebo-controlled randomized withdrawal period (8 weeks), the main outcome measures are pain intensity (NRS score 11 point scale) and stool type ( Bristol type). And secondary endpoints included overall symptoms sensory scores, defecation frequency, abdominal distension, mucous stool and quality of life parameters (IBS-36 scale). After the end of the treatment period, the participants whose pain intensity and stool type are effective subjects into a randomized withdrawal period, analysis and comparison of the difference between treatment group and placebo group withdrawal rate and curative effect index score reduces.
- Conditions
- Irritable Bowel Syndrome
- Being tested
- N-acetyl-D-glucosamine, placebo
- Keywords
- diarrhea, abdominal pain
- Medical subject headings
- Irritable Bowel Syndrome, Diarrhea, Abdominal Pain
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
N-acetyl-D-glucosamineDrug
Also called Atysamine (ATSM)
placeboDrug
| Study group | Role | What they receive |
|---|---|---|
| Starch capsule | Placebo comparator | During the two weeks screening phase of the study, the daily dose of 3 tablets will be taken before breakfast, lunch and supper. Receives: Drug: placebo |
| N-acetyl-D-glucosamine | Experimental | During the 8-week treatment phase of the study,the dose of 100mg(3 tablets)per day will be taken. Receives: Drug: N-acetyl-D-glucosamine |
What is being measured
The primary outcome is the main question the study is designed to answer.
Abdominal Pain Intensity
As measured by numerical rating scale
Measured: one and a half years
Stool Consistency
As measured by Bristol ' s scale
Measured: one and a half years
Secondary outcomes (5)
General symptoms feel grading
As measure by patient reported outcome measures
Measured: one and a half years
defecation frequency
As measure by patient reported outcome measures
Measured: one and a half years
abdominal distension
As measure by patient reported outcome measures
Measured: one and a half years
mucous stool
As measure by patient reported outcome measures
Measured: one and a half years
life quality parameters
As measure by healthy survey, SF-36
Measured: one and a half years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Jul 2013 (estimated)
- Study startApr 2013
- Primary completionDec 2016 (estimated)
- Study completionJul 2017 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Irritable Bowel SyndromeStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2/3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Single group
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 180 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Third Military Medical University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Liujunkang, Third Military Medical University
- Investigators
- Junkang Liu, Doctor, Study chair, Third MMU
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01893606
- Sponsor's protocol ID
- liujunkang
- Other IDs
- dongying
- Status last verified
- Jul 2015
- First submitted
- 6 Jun 2013
- Last updated
- 24 Jul 2015
- Results posted
- No
- Data monitoring committee
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 24 Jul 2015. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Multicenter Randomized Withdrawal Clinical Trials of N-acetyl Glucosamine Capsule for Irritable Bowel Syndrome With Diarrhea (IBS-D) Treatment
- ClinicalTrials.gov ID
- NCT01893606
- Acronym / sponsor ID
- liujunkang
- Conditions
- Irritable Bowel Syndrome
- Keywords
- diarrhea, abdominal pain
- Phase
- Phase 2/3
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 180 participants (estimated)
- Lead sponsor
- Third Military Medical UniversityUniversity, hospital or other
- Study start
- Apr 2013
- Primary completion
- Dec 2016 (estimated)
- Study completion
- Jul 2017 (estimated)
- First posted
- 9 Jul 2013 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study is a withdrawal randomized clinical trail to evaluate the clinical efficacy and safety of 1.1 chemical drugs N-acetyl glucosamine on Chinese IBS-D patients coming from four centers in chongqing. 180 IBS-D patients in this research are accord with the Rome III diagnostic criteria, screening/import period pain intensity scores of the NRS week mean value are 3.0 plus and the days which at least more than one time a stool type are 6 or 7 type over 2 days/week. Test cycle includes screening/import period (2 weeks), open treatment period (8 weeks), a double-blind placebo-controlled randomized withdrawal period (8 weeks), the main outcome measures are pain intensity (NRS score 11 point scale) and stool type ( Bristol type). And secondary endpoints included overall symptoms sensory scores, defecation frequency, abdominal distension, mucous stool and quality of life parameters (IBS-36 scale). After the end of the treatment period, the participants whose pain intensity and stool type are effective subjects into a randomized withdrawal period, analysis and comparison of the difference between treatment group and placebo group withdrawal rate and curative effect index score reduces.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Single group
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Starch capsule | Placebo comparator | Drug: placeboDuring the two weeks screening phase of the study, the daily dose of 3 tablets will be taken before breakfast, lunch and supper. |
| N-acetyl-D-glucosamine | Experimental | Drug: N-acetyl-D-glucosamineDuring the 8-week treatment phase of the study,the dose of 100mg(3 tablets)per day will be taken. |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (8 listed)
- Man or woman, aged 18 to 65 years, inclusive.
- Based on the Roman III diagnostic criteria for diagnosis of IBS-D subjects, recurrent abdominal pain or discomfort (hard to describe the discomfort of pain), monthly attack within the past 3months at least 3 days. With two or more of the following three kinds of symptoms:
- At least a portion of the time abdominal pain or defecate increase when discomfort.
- At least a portion of the time abdominal pain or the row of loose stools when discomfort.
- At least a portion of the time abdominal pain or discomfort improved after defecation.
Key exclusion criteria (9 listed)
- The absorption of any known adverse
- History of gastrointestinal surgery ( not including appendectomy)
- History of organic gastrointestinal diseases: IBS, cancer etc.
- History of chronic diseases: anemia (hemoglobin<90g/L), pulmonary tuberculosis, diabetes or cardiovascular, liver, kidney, brain, and hematopoietic system and other serious diseases and psychiatric patients, AST(aspartate aminotransferase), ALT (alanine aminotransferase)> 1.5 times, BUN (blood urea nitrogen)> 1.2 times, Cr > 1.0 times normal.
- The disease of lactose intolerance, gallstones, endometriosis, easily confused with IBS symptoms of ;
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| N-acetyl-D-glucosamineAlso: Atysamine (ATSM) | Drug | N-acetyl-D-glucosamine |
| placebo | Drug | Starch capsule |
Primary outcome
Abdominal Pain Intensity
Time frame: one and a half years
As measured by numerical rating scale
Stool Consistency
Time frame: one and a half years
As measured by Bristol ' s scale
5 secondary outcomes
General symptoms feel grading
Time frame: one and a half years
defecation frequency
Time frame: one and a half years
abdominal distension
Time frame: one and a half years
mucous stool
Time frame: one and a half years
life quality parameters
Time frame: one and a half years
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 Jul 2015.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Junkang Liu, Doctor study chair
Third MMU
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2/3 study testing N-acetyl-D-glucosamine in people with Irritable Bowel Syndrome, run by Third Military Medical University at 1 site in China.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 8 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 24 Jul 2015. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this combined phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Junkang Liu, Doctor (+86-023-68752191, liujunkang@163.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Abdominal Pain Intensity (time frame: one and a half years). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Jul 2015.