An interventional study of GUT99 1 and Placebo in Gastrointestinal Function, sponsored by Wecare Probiotics Co., Ltd.. Not yet recruiting. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-06-09.
Sponsored by Wecare Probiotics Co., Ltd. · Not applicable, Interventional, and Treatment
To evaluate the effects of probiotic intervention on gastrointestinal function in patients with constipation after 4 weeks of treatment, and to explore its potential effects on immune status and bone metabolism.
Wecare Probiotics Co., Ltd. is the lead sponsor of 67 studies on the registry; 23 are open to participants now.
Counted across the registry records on this site, refreshed daily.
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.
Participants (including male participants) must have no plans for pregnancy from 14 days before screening until 6 months after the end of the study and must agree to use effective during this period.
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Exclusion Criteria:
Any other participants considered unsuitable for participation in the study by the investigator.
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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.
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.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Investigational drug or device
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Probiotic powder containing GUT99 (1000B) administered orally once daily for 8 weeks.
Dietary Supplement: GUT99 1
Maltodextrin powder administered orally once daily for 8 weeks.
Dietary Supplement: Placebo
Probiotic powder containing GUT99 (120B) administered orally once daily for 8 weeks.
Dietary Supplement: GUT99 2
Taken orally once daily for 8 weeks (120B).
Taken orally once daily for 8 weeks.
Taken orally once daily for 8 weeks (1000B).
Changes in stool consistency
Stool consistency will be evaluated using the Bristol Stool Form Scale (BSFS) to assess the improvement of constipation symptoms in patients receiving probiotic intervention.
Time frame: 8 weeks
No study locations are listed for this record.
Start is estimated for Jun 2026; primary completion for Dec 2026, 5 months later.
How these figures are worked out, and which studies are left out of them.
This study is not yet recruiting, as verified in Jun 2026. You cannot join it, but the record below documents what was studied.
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