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Rotavirus GastroenteritisPhase 4NCT01575197

Evaluation of the Human Rotavirus Vaccine at Varying Schedules and Doses in Rural Ghana

A Phase 4 study testing Human Rotavirus Vaccine in people with Rotavirus Gastroenteritis, run by PATH at 1 site in Ghana.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to determine whether giving the Human Rotavirus Vaccine on alternate dosing schedules will enhance the immune response to the vaccine in a low-resource, high-burden country in Africa. Read more about this study

Who is it for?
Ages 42 to 55 daysHealthy volunteers can take part
Conditions the study is for
Rotavirus Gastroenteritis
What is being tested?
Human Rotavirus Vaccine
Type of treatment
Vaccines
Could I receive a placebo?
No, everyone receives an active treatment
How many people
456 participants
Where
1 siteGhana
Study dates
Sep 2012to Feb 2013
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 42 to 55 days
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • Between 42 and 55 days of age at the time of enrollment.
  • Healthy infant free of chronic or serious medical condition as determined by history and physical examination at the time of study enrollment.
  • Parents/guardians of each subject are able to understand and follow study procedures and agree to participate in the study by providing parental/guardian permission.

Who cannot join

  • If child has previously had intussusception or abdominal surgery.
  • Use of any immunosuppressive drugs or immunoglobulin and/or blood product use since birth or anticipated during study period.
  • Current enrollment in any other intervention trial or use of any investigational drug or vaccine throughout the study period.
  • Birthweight less than 2000 grams or gestation < 36 weeks, if this information is available.
  • Any subject who reports plan to leave the study area before the completion of the study (i.e., relocation, migration, etc.).
  • Another child living in the same compound is already enrolled in the trial (i.e., only one participant can be enrolled per compound).
  • After the rotavirus vaccine is introduced into the routine EPI system in Navrongo: Another child in the compound is less than 16 weeks of age.
  • The child has received rotavirus vaccine outside of this study.

Trial locations and contacts

1 site in 1 country.

Ghana1 site
  • Navrongo Health Research Center

    Navrongo, Upper East Region

Other trials in Ghana

About this study

Official title: Immunogenicity of the Human Rotavirus Vaccine (Rotarix™) at Varying Schedules, Doses, and Ages in Rural Ghana

The purpose of this study is to determine whether giving the Human Rotavirus Vaccine on alternate dosing schedules will enhance the immune response to the vaccine in a low-resource, high-burden country in Africa. Alternate dosing schedules studied include giving the 2-dose vaccine schedule at a slightly older age and giving an additional dose of the vaccine.

Being tested
Human Rotavirus Vaccine

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Human Rotavirus VaccineBiological

    Also called Rotarix

    Rotavirus vaccine will be administered concomitantly with other routine Expanded Programme on Immunization (EPI) vaccinations at 6 \& 10 weeks of age, 10 \& 14 weeks of age, or 6, 10, \& 14 weeks of age, depending on study arm assignment.

Study groups in NCT01575197
Study groupRoleWhat they receive
Rotavirus Vaccine at age 6 & 10 weeksActive comparatorParticipants are provided with the Human Rotavirus Vaccine (HRV) at 6 \& 10 weeks of age.
Receives: Biological: Human Rotavirus Vaccine
Rotavirus vaccine at age 10 & 14 weeksExperimentalParticipants are provided with the Human Rotavirus Vaccine (HRV) at 10 \& 14 weeks of age.
Receives: Biological: Human Rotavirus Vaccine
Rotavirus vaccine at age 6,10,&14 weeksExperimentalParticipants are provided with the Human Rotavirus Vaccine (HRV) at 6, 10, \& 14 weeks of age.
Receives: Biological: Human Rotavirus Vaccine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Immunoglobulin A (IgA) Seroconversion: 6 & 10 Week vs. 6, 10, & 14 Week Vaccination Schedules

    Anti-rotavirus IgA seroconversion will be defined as the detection of anti-rotavirus IgA antibodies at a concentration ≥20 U/mL post-vaccination in infants seronegative for anti-rotavirus IgA pre-vaccination as measured by Enzyme Immunoassay (EIA).

    Measured: 4-weeks post-vaccination (All Groups) and 8 weeks post-vaccination (6 & 10 week Group)

Secondary outcomes (6)
  1. IgA Seroconversion: 6 & 10 Week vs. 10 & 14 Week Vaccination Schedules

    Anti-rotavirus IgA seroconversion will be defined as the detection of anti-rotavirus IgA antibodies at a concentration ≥20 U/mL post-vaccination in infants seronegative for anti-rotavirus IgA pre- vaccination as measured by EIA.

    Measured: 4-weeks post-vaccination (All Groups) and 8 weeks post-vaccination (6 & 10 week Group)

  2. IgA Geometric Mean Titers (GMTs): 6 & 10 Week vs. 6, 10, & 14 Week Vaccination Schedules

    IgA GMTs measured by EIA will be compared post-vaccination between participants receiving Rotarix at 6 and 10 weeks of age and those receiving Rotarix at 6, 10, and 14 weeks of age. For participants in Group 1, where post-vaccination response was measured at both 14 and 18 weeks of age, the highest response between these two visits was used as the final response for comparison.

    Measured: 4-weeks post-vaccination (All Groups) and 8 weeks post-vaccination (6 & 10 week Group)

  3. IgA GMTs: 6 & 10 Week vs. 10 & 14 Week Vaccination Schedule

    IgA GMTs measured by EIA will be compared post-vaccination between participants receiving Rotarix at 6 and 10 weeks of age and those receiving Rotarix at 10 and 14 weeks of age. For participants in Group 1, where post-vaccination response was measured at both 14 and 18 weeks of age, the highest response between these two visits was used as the final response for comparison.

    Measured: 4-weeks post-vaccination (All Groups) and 8 weeks post-vaccination (6 & 10 week Group)

  4. Baseline Immunoglobulin G (IgG) Levels: Impact on IgA Seroconversion Post-vaccination

    The number and percentage of participants demonstrating IgA seroconversion post-vaccination as defined above in infants seronegative for anti-rotavirus IgA pre- vaccination using the EIA assay) by EIA pre- and post-vaccination will be compared between participants in each group who had low as compared to high rotavirus immunoglobulin G (IgG) antibody levels pre-vaccination (i.e., at 6 weeks in Groups 1 and 3 and at 10 weeks in Group 2) as measured by Enzyme linked immunosorbent assay (ELISA). Low and high IgG categories will be determined based on the IgG antibody level distribution.

    Measured: Baseline, 4-weeks post-vaccination (All Groups) and 8 weeks post-vaccination (6 & 10 week Group)

  5. Vaccine-type Rotavirus Shedding in Stool

    Vaccine-type rotavirus shedding in the stool at 4 (±1 day) and 7 days (±1 day) following each Rotarix vaccination will be identified using EIA for rotavirus antigens and compared to baseline levels obtained just prior to each study vaccination. If shedding in stool is detected at either time point (per manufacturer's specifications) following each Rotarix vaccination, this will be considered evidence of vaccine take.

    Measured: Days 4 and 7 post each study vaccination

  6. SAE Assessment

    Serious adverse events (SAEs) occurring at anytime during the study will be measured as observed by study staff and/or reported by parent at any time. SAEs will be subcategorized according to treatment group as those deemed related to vaccination or not by an independent study monitor.

    Measured: Throughout study period; Group 1: from enrollment through approximately 8 weeks of study participation, Groups 2 & 3: from enrollment through approximately 12 weeks of study participation

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 Apr 2012 (estimated)
  2. Study startSep 2012
  3. Primary completionFeb 2013
  4. Study completionFeb 2013

Resources

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 4
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
456 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01575197
Sponsor's protocol ID
GHANA-HRV-01
Other IDs
OPP1017334
Status last verified
Apr 2015
First submitted
6 Apr 2012
Last updated
1 Jun 2015

Publications

  • Armah G, Lewis KD, Cortese MM, Parashar UD, Ansah A, Gazley L, Victor JC, McNeal MM, Binka F, Steele AD. A Randomized, Controlled Trial of the Impact of Alternative Dosing Schedules on the Immune Response to Human Rotavirus Vaccine in Rural Ghanaian Infants. J Infect Dis. 2016 Jun 1;213(11):1678-85. doi: 10.1093/infdis/jiw023. Epub 2016 Jan 27.

    PubMed 26823335

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Human Rotavirus Vaccine in people with Rotavirus Gastroenteritis, run by PATH at 1 site in Ghana.

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 3 inclusion and 8 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: finished, as of the sponsor's last update on 1 Jun 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 Ghana. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 1 Jun 2015). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Immunoglobulin A (IgA) Seroconversion: 6 & 10 Week vs. 6, 10, & 14 Week Vaccination Schedules (time frame: 4-weeks post-vaccination (All Groups) and 8 weeks post-vaccination (6 & 10 week Group)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01575197, which also lists 1 linked publication.

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 1 Jun 2015.

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