A Phase 2 interventional study of Rifamycin SV MMX and Placebo to Rifamycin SV-MMX in Traveler's Diarrhea, sponsored by RedHill Biopharma Limited. Not yet recruiting. Open to participants aged 12 Years to 17 Years. Per ClinicalTrials.gov, last updated 2023-01-27.
Sponsored by RedHill Biopharma Limited · Phase 2, Interventional, and Treatment
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This will be a double blind comparative study, performed in pediatric subjects (Age 12-17) traveling to developing regions with a known high incidence of traveler's diarrhea. The subjects will be suffering from acute diarrhea for at least 12 hours, without symptoms of systemic infection.
Approximately 142 subjects are expected to be enrolled in the study, 1:1 in the Rifamycin SV MultiMatrix (MMX) plus Oral RehydrationTherapy (ORT) group and in the placebo tablets plus ORT group respectively. The day of randomization (Visit 1, Day 1), the subjects will start the treatment receiving ORT plus Rifamycin SV MMX 400 mg (as two tablets of 200 mg each) twice daily (morning and evening) or ORT plus placebo tablets (as two tablets) twice daily (morning and evening). The subjects will begin the treatment within 72 hours of onset of diarrhea. Treatment duration will last 72 hours. The total number of tablets for the entire treatment course will be 12 (4 × 200 mg tablets/day for 3 days). The administration of the ORT will follow the specification reported in the product label. The tablets will be orally administered during the day. No tablet administration will be done during the night.
After enrollment, subjects/their parents/or guardians will complete Diary Cards (PDC) in which will be daily recorded date, time of first tablets intake, time and consistency of each stool, presence of blood in stools, abdominal pain/cramps, flatulence, tenesmus, urgency, nausea, vomiting, fever, adverse events (AEs), and concomitant medications.
During the study, the subjects will be assessed for safety and efficacy at Visit 2 (Day 2) and Visit 3 (Day 4/5) as final Study Visit.
Stool samples for microbiological assessment will be collected at Visits 1 and 3. Stool will be examined and cultured at local labs for main enteropathogens and for the presence of protozoa, ova and yeasts.
Stool samples will be required in a subset population of the Rifamycin SV MMX group, at the Follow-up visit to determine rifamycin concentration in the feces.
Blood and urine sampling for routine safety analyses will be collected at Visit 1 and at Visit 3.
877 studies on the registry are indexed under Diarrhea; 76 are open to participants now.
This study's planned enrollment of 142 is close to the median of 137 across 738 interventional studies indexed under Diarrhea.
Browse Diarrhea studies →RedHill Biopharma Limited is the lead sponsor of 19 studies on the registry; 2 are open to participants now.
Of its 7 completed or terminated interventional studies of FDA-regulated products, 5 (71%) have results posted.
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.
Exclusion Criteria:
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.
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
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.
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.
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.
The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.
Childbearing potential
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
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.
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.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Excipients
The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Each tablet contains 200mg Rifamycin SV MMX for oral administration
Drug: Rifamycin SV MMX
Placebo tablets identical to Rifamycin tablets with respect to size, taste and appearance.
Drug: Placebo to Rifamycin SV-MMX
200 mg Rifamycin SV-MMX® (CB-01-11)
Also known as: Rifamycin
Placebo to Rifamycin SV-MMX® Placebo tablets correspond to active tablets with respect to size, taste, and appearance.
Also known as: Placebo
Clinical Cure
Passage of two or fewer soft stools and no watery stools, no fever (\> 100.4 ºF or 38 ºC), and no signs or symptoms of enteric infection (other than mild excess gas/flatulence) during a 24-hour interval in the 120-hour data collection period after the first dose of study drug or Passage of no stools or only formed stools and no fever during a 48-hour interval in the 120-hour data collection period after the first dose of study drug, with or without other signs or symptoms of enteric infection.
Time frame: 120 hours
Time to Last Unformed Stool (TLUS)
defined as the interval in hours between the first dose of study drug and the last unformed stool passed, after which clinical cure was declared. Subjects who meet the criteria for clinical cure immediately after the start of the study and prior to passing any unformed stools are defined as having a TLUS of 0 hours. Subject who terminated the study early due treatment failure will have a censored TLUS set to 120 hours.
Time frame: 120 hours
Microbiological Cure
the proportion of subjects with an identified pathogen at baseline with microbiological eradication in the post-treatment stool sample.
Time frame: 120 hours
Treatment Failure
Defined as either of the following: Worsening diarrhea and/or signs or symptoms of enteric infection or failure to improve 24 hours or more after the first dose of study drug that results in administration of rescue therapy and/or Not achieving Clinical Cure in the 120-hr data collection period after the first dose of study drug or use of antimicrobial prohibited concomitant medication.
Time frame: 120 hours
Improvement
Defined as ≥ 50% reduction in the number of unformed stools passing during a 24 h period, in comparison with the number of stools passed during the 24 h immediately before enrolment in the study.
Time frame: 24 hours
No study locations are listed for this record.
Start is estimated for Jan 2024; primary completion for Jan 2025, 12 months later.
Of 24 industry-sponsored phase 2 interventional studies under Diarrhea, half reached primary completion within 13 months of starting (the median), counting those still running; a quarter within 11 and three quarters within 20. This study's planned 12 months is close to that.
Counting every sponsor, half of 47 studies reached it within 15 months; a quarter within 11 and three quarters within 29.
How these figures are worked out, and which studies are left out of them.
This study is not yet recruiting, as verified in Jan 2023. You cannot join it, but the record below documents what was studied.
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Studies of the drug tested here: Rifamycin SV
RedHill Biopharma Limited