Exploration of the Biologic Basis for Underperformance of Oral Polio and Rotavirus Vaccines in Bangladesh (PROVIDE)
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ClinicalTrials.gov Identifier: NCT01375647 |
Recruitment Status :
Completed
First Posted : June 17, 2011
Last Update Posted : April 14, 2015
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Oral polio and rotavirus vaccines are significantly less effective in children living in the developing world. Tropical enteropathy, which is associated with intestinal inflammation, decreased absorption and increased permeability, may contribute substantially to oral vaccine failure in developing country settings. Other possible causes of oral vaccine underperformance include malnutrition, interference with maternal or breastmilk antibodies, changes in gut microbiota, and genetic susceptibility.
Primary Objective: to determine whether tropical enteropathy impairs the efficacy of oral polio and rotavirus vaccines in children in Bangladesh.
Secondary Objectives: 1) to determine the impact of an inactivated polio vaccine (IPV) boost on the efficacy of oral polio vaccine and 2) to determine the efficacy of oral rotavirus vaccine to prevent rotavirus diarrhea
The polio and rotavirus randomized clinical trials are embedded as secondary objectives within the exploratory study of tropical enteropathy. The primary and secondary outcome measures are relevant to the randomized clinical trials.
Condition or disease | Intervention/treatment | Phase |
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Rotavirus Diarrhea Vaccine Virus Shedding Tropical Enteropathy | Biological: IPV Biological: Rotarix | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 700 participants |
Allocation: | Randomized |
Intervention Model: | Factorial Assignment |
Masking: | Single (Outcomes Assessor) |
Primary Purpose: | Prevention |
Official Title: | Exploration of the Biologic Basis for Underperformance of Oral Polio and Rotavirus Vaccines in Bangladesh |
Study Start Date : | May 2011 |
Actual Primary Completion Date : | October 2014 |
Actual Study Completion Date : | November 2014 |

Arm | Intervention/treatment |
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Experimental: Rotarix + No IPV
Randomized to receive rotarix vaccine but no IPV boost
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Biological: Rotarix
Administered per protocol |
Experimental: Rotarix + with IPV boost
Randomized to receive both rotarix vaccine and IPV boost
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Biological: IPV
Administered per protocol Biological: Rotarix Administered per protocol |
No Intervention: No Rotarix + No IPV
Randomized to receive neither rotarix vaccine nor IPV boost
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Experimental: No Rotarix + with IPV boost
Randomized to receive no rotarix vaccine but to receive IPV boost
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Biological: IPV
Administered per protocol |
- Presence of fecal shedding of polio vaccine virus determined by culture (polio trial) [ Time Frame: 25 days following week 52 visit ]
- One or more episodes of rotavirus-associated diarrhea (rotavirus trial) [ Time Frame: Birth to one year ]
- Duration of fecal shedding of polio vaccine virus (polio trial) [ Time Frame: 25 days following week 52 visit ]
- Community fecal shedding of polio vaccine virus just prior to one year OPV dose (polio trial) [ Time Frame: 52 weeks ]
- Presence and duration of fecal polio virus shedding within the three individual virus strains (polio trial) [ Time Frame: 25 days following week 52 visit ]
- Serum neutralizing antibody response (polio trial) [ Time Frame: 40 weeks and 53 weeks ]
- Total number of diarrheal episodes (rotavirus trial) [ Time Frame: Birth to one year ]
- Total duration of rotavirus-associated diarrheal episodes (rotavirus trial) [ Time Frame: Birth to one year ]

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Ages Eligible for Study: | up to 7 Days (Child) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- Mother willing to sign informed consent form.
- Healthy infant aged 0 to 7 days old.
- No obvious congenital abnormalities or birth defects.
- No abnormal (frequency and consistency) stools since birth.
- Stable household with no plans to leave the area for the next one year.
Exclusion Criteria:
- Parents are not willing to have child vaccinated at the field clinic.
- Parents are not willing to have child's blood drawn.
- Parents are planning to enroll child into another clinical study during the time period of this trial.
- Mother not willing to have blood drawn and breast milk extracted.
- Parents not willing to have field research assistant in home two times per week.
- History of seizures or other apparent neurologic disorders.
- Infant received any vaccines before start of study, except Bacillus Calmette-Guerin (BCG).
- Infant has any sibling currently or previously enrolled in this study, including a twin.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01375647
Bangladesh | |
International Centre for Diarrhoeal Disease Research, Bangladesh | |
Dhaka, Bangladesh |
Principal Investigator: | Beth Kirkpatrick, M.D. | University of Vermont | |
Principal Investigator: | William Petri, M.D., Ph.D. | University of Virginia School of Medicine | |
Principal Investigator: | Rashidul Haque, M.D., Ph.D. | International Center for Diarrhoeal Disease Research, Bangladesh |
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | Beth Kirkpatrick, M.D., University of Vermont |
ClinicalTrials.gov Identifier: | NCT01375647 |
Other Study ID Numbers: |
PROVIDE |
First Posted: | June 17, 2011 Key Record Dates |
Last Update Posted: | April 14, 2015 |
Last Verified: | April 2015 |
Oral Vaccines Vaccine Responsiveness Tropical Enteropathy |
Intestinal Diseases Sprue, Tropical Diarrhea Signs and Symptoms, Digestive |
Gastrointestinal Diseases Digestive System Diseases Malabsorption Syndromes Metabolic Diseases |