High Amylose Maize Starch for Treatment of Cholera (RESTORS)
2. april 2014 oppdatert av: PATH
Phase 2, Single Centre, Randomized, Double-blind Study Conducted in Adult Males With Acute Dehydrating Diarrhea Due to Cholera With the Aim Being to Select One or More of the Three Fermentable Starches (FS) for an FS-HO-ORS Formulation.
A randomized, double-blind trial in adult males with acute dehydrating diarrhea of cholera comparing the safety, tolerability and efficacy of HAMS HO-ORS, HAMS 2.5% Acetate HO-ORS, HAMS 6% Acetate HO-ORS and HO-ORS.
The primary hypothesis is that at least one of the hypo-osmolar ORS containing high amylose maize starch 6% acetate (HAMSA6-HO-ORS), hypo-osmolar ORS containing high amylose maize starch 2.5% acetate (HAMSA2.5-HO-ORS) and a hypo-osmolar ORS containing high amylose maize starch (HAMS-HO-ORS), will significantly reduce diarrhea duration compared with hypo-osmolar (HO) ORS.
Specifically, the investigators expect that HAMSA6 will be the most effective preparation.
Studieoversikt
Status
Avsluttet
Forhold
Detaljert beskrivelse
- Burden: Watery diarrhea including cholera continues to be a major cause of childhood mortality in developing countries, with an estimated 1.5 million children dying each year. This figure has greatly reduced from approximately 5 million diarrheal deaths annually 20 years ago, a phenomenon often attributed to the utilization of oral rehydration solution (ORS).
- Knowledge Gap: ORS is very effective in correcting dehydration and reducing mortality, but is not adequately used in many countries, partly due to the fact that it does not reduce diarrhea. The physiological basis for ORS is that glucose-stimulated sodium and fluid absorption is not inhibited by cyclic 3',5'-adenosine monophosphate (cAMP) and other diarrhea mediators which inhibit sodium chloride absorption. The conventional glucose-based ORS does not reduce duration or severity of diarrhea and may in fact paradoxically increase fecal fluid losses. Advances in ORS composition have included the universal adoption of hypo-osmolar ORS (HO-ORS) in 2003. Recent technological innovations have led to the use of amylase-resistant starches and their modifications in the treatment of diarrhea. Short chain fatty acids (SCFA), which are produced in colon from these non-absorbed carbohydrates, enhance sodium absorption. An orally administered, non-absorbed starch (i.e., one resistant to digestion by amylase) significantly reduced fecal fluid loss and the duration of diarrhea in patients with cholera.
- Relevance: Efforts are continuing to improve the efficacy of oral rehydration solution. As glucose stimulates sodium and water absorption in small intestine, short chain fatty acids (SCFAs) stimulate sodium and water absorption in the colon. In cholera, colonic function is also impaired due to the lack of SCFAs. The main source of SCFAs is the unabsorbed carbohydrates that are fermented in the colon by the colonic bacteria. The maize starch contains substantial amount of amylase resistant starch that escapes digestion and absorption in the small intestine and is fermented in the colon, liberating SCFAs. We expect that our experimental ORS containing maize starch will reduce the severity (stool volume) and enhance recovery (reduce duration) of diarrhoea.
Studietype
Observasjonsmessig
Registrering (Faktiske)
106
Kontakter og plasseringer
Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.
Studiesteder
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Dhaka
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Mohakhali, Dhaka, Bangladesh, 1212
- Dhaka Hospital - icddr,b (International Centre for Diarrhoeal Disease Research, Bangladesh)
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Deltakelseskriterier
Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
18 år til 65 år (Voksen, Eldre voksen)
Tar imot friske frivillige
Nei
Kjønn som er kvalifisert for studier
Mann
Prøvetakingsmetode
Sannsynlighetsprøve
Studiepopulasjon
Study Population is 150 adult male patients: 40 each in the HAMS, HAMSA2.5 and HAMSA6 arms and 30 in the HO-ORS study arm.
Beskrivelse
INCLUSION CRITERIA:
A participant is considered eligible for participation in the trial if the following inclusion criteria are satisfied on admission (Day 1, before randomization) to the hospital:
- Participant is a male between 18 and 65 years of age inclusive
- Severe watery diarrhea without fecal blood of less than 48 hours (with passage of 3 or more watery stools in the 24 hours before admission)
- Signs of severe dehydration as per ICDDR,B guidelines (modified WHO guideline)
- Dipstick test/Dark-field examination positive for Vibrio cholera
- Written informed consent is provided
- Participant is willing and able to comply with all trial requirements
EXCLUSION CRITERIA:
A participant who meets any of the following criteria on admission (before randomization) to the hospital will not qualify for the study
- Evidence or history of any clinically significant illness as per the Investigator's discretion.
- Known case of HIV or Hepatitis B
- History of cancer
- Known renal disease
- Frequent excessive alcohol use, binge drinking (e.g. men consume 5 or more drinks in about 2 hours) or use of illicit drugs within the past two years
- History of receiving antimicrobial or anti-diarrheal medication (loperamide, diphenoxylate, etc.) within seven days of admission
- Concomitant infection requiring antimicrobial therapy
- Donated blood or plasma or experienced clinically significant loss of blood within eight weeks prior to admission or who plan to donate blood within 1 month after study participation
- Clinically significant abnormal laboratory test results as determined by the investigator
- Treatment within 30 days prior to admission (or five half-lives of the compound, if longer) with any investigational agent or device
- History of seizure (including febrile seizure) or loss of consciousness;
- History of any GI Surgery related to Bowel resections and gastric anastomoses in past except Appendicitis
- For any reason, deemed by the investigator to be inappropriate for this study, including participants who are unable to communicate or to cooperate with the investigator or designee
- Prior enrolment in this trial
Studieplan
Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.
Hvordan er studiet utformet?
Kohorter og intervensjoner
Gruppe / Kohort |
|---|
|
Males
Adult 18-65
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Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
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Duration of Diarrhea
Tidsramme: 12 hrs w/o diarrhoea, up to max of 96 hrs
|
Criteria evaluated: Duration of diarrhea during the study period (defined as time from randomisation to the last watery stool preceding two soft/formed stools or a 12 hour period without diarrhea, up to a maximum of 96 hours) |
12 hrs w/o diarrhoea, up to max of 96 hrs
|
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Stool output and fluid intake rate
Tidsramme: 0 to 96 hrs
|
Criteria evaluated:
|
0 to 96 hrs
|
Andre resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Safety & Tolerability as measured by adverse events, vital signs and lab parameters
Tidsramme: Approximately 24 hours after randomization
|
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Approximately 24 hours after randomization
|
Samarbeidspartnere og etterforskere
Det er her du vil finne personer og organisasjoner som er involvert i denne studien.
Sponsor
Etterforskere
- Hovedetterforsker: Nur H Alam, MD MBBS, International Centre for Diarrhoeal Disease Research, Bangladesh
Studierekorddatoer
Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.
Studer hoveddatoer
Studiestart
1. april 2013
Primær fullføring (Faktiske)
1. februar 2014
Studiet fullført (Faktiske)
1. februar 2014
Datoer for studieregistrering
Først innsendt
27. mars 2013
Først innsendt som oppfylte QC-kriteriene
2. april 2013
Først lagt ut (Anslag)
4. april 2013
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
4. april 2014
Siste oppdatering sendt inn som oppfylte QC-kriteriene
2. april 2014
Sist bekreftet
1. februar 2014
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- RESTORS
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