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CholeraPhase 2NCT00548054

Safety and Immunogenicity of a Killed Oral Cholera Vaccine in Infants

A Phase 2 study testing Bivalent killed oral cholera vaccine in people with Cholera and Diarrhea, run by International Vaccine Institute at 1 site in India.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

In order to assess whether the bivalent killed oral cholera vaccine may be used safely among infants who are most at risk for cholera, the investigators need to determine the safety and immunogenicity of the killed oral cholera vaccine among infants less than 1 year of age when given with the expanded program on… Read more about this study

Who is it for?
Ages 10 weeks to 11 monthsHealthy volunteers can take part
Conditions the study is for
Cholera, Diarrhea, Vibrio Infections
What is being tested?
Bivalent killed oral cholera vaccine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
300 participants
Where
1 siteIndia
Study dates
Dec 2015to Dec 2016
Phase
Phase 2
Are there results?
None posted in the registry

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 10 weeks to 11 months
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • Healthy infants aged from 9 months to less than 12 months who have not received measles vaccine will be recruited in Kolkata, North 24 Parganas, and South 24 Parganas
  • All subjects must satisfy the following criteria at study entry:
  • Male or female infants aged from 9 months to less than 12 months who the investigator believes will comply with the requirements of the protocol (i.e., available for follow-up visits and specimen collection)
  • Written informed consent obtained from their parents/guardians
  • Healthy subjects as determined by:
  • Medical history
Show all 40Show fewer
  • Physical examination
  • Clinical judgment of the investigator
  • Exclusion Criteria, Infants 10 weeks to 6 months of age at Day 0:
  • Ongoing serious chronic disease
  • Immunocompromising condition or therapy
  • Diarrhea (having more frequent watery stools than usual within a 24 hour period) 6 weeks prior to enrollment
  • Intake of any anti-diarrheal medicine in the past week
  • Irritability, loss of appetite, general ill-feeling or vomiting in the past 24 hours
  • Acute disease one week prior to enrollment, with or without fever. Temperature =>38C (oral) or axillary temperature =>37.5C warrants deferral of the vaccination pending recovery of the subject
  • Receipt of antibiotics in past 14 days
  • Receipt of killed oral cholera vaccine
  • Receipt of live or killed enteric vaccine in 2 months
  • Receipt of DTwP1, OPV1 or Hepatitis B2 vaccines
  • One or two episodes of diarrhea lasting for more than 2 weeks in the past 2 months
  • One or two episodes of abdominal pain lasting for more than 2 weeks in the past 2 months
  • Z-score of < -2 on the weight for age WHO Child Growth Standards
  • Exclusion Criteria, Infants 9 months to less than 12 months:
  • Ongoing serious chronic disease
  • Immunocompromising condition or therapy
  • Diarrhea (3 or more loose/watery stools within a 24 hour period) 6 weeks prior to enrollment
  • Intake of any anti-diarrheal medicine in the past week
  • Abdominal pain/cramps, loss of appetite, general ill-feeling or vomiting in the past 24 hours
  • Acute disease one week prior to enrollment, with or without fever. Temperature =>38C (oral) or axillary temperature =>37.5C warrants deferral of the vaccination pending recovery of the subject
  • Receipt of antibiotics in past 14 days
  • Receipt of killed oral cholera vaccine
  • Receipt of live or killed enteric vaccine in last 4 weeks
  • Receipt of measles-containing vaccine (MCV)
  • One or two episodes of diarrhea lasting for more than 2 weeks in the past 6 months
  • One or two episodes of abdominal pain lasting for more than 2 weeks in the past 6 months
  • Disease episode potentially related to measles
  • receipt of blood, blood products or a parenteral immunoglobulin preparation in past 3 months
  • History of anaphylaxis, any serious vaccine reaction, allergy to eggs, egg products or to any measles vaccine component
  • Any condition which in the opinion of the investigator might interfere with the evaluation of the study objectives
  • Z-score of < -2 on the weight for age WHO Child Growth Standards

Who cannot join

None listed.

Trial locations and contacts

1 site in 1 country.

Vijayalaxmi Mogasale, MD contact

82-2-881-1151

vlmogasale@ivi.int

Binod Sah, MBBS, MS contact

82-2-881-1149

bsah@ivi.int

India1 site
  • National Institute of Cholera and Enteric Disease

    Kolkata, West Bengal

    Alok K Deb, PhD, MBBS, 91-33-2363-3373, adeb2@yahoo.com

    Alok K Deb, PhD, MBBS

Other trials in India

About this study

Official title: Safety and Immunogenicity of a Killed Oral Cholera Vaccine Among Infants 10 Weeks to Less Than 12 Months of Age When Given Concomitantly With EPI Vaccines

In order to assess whether the bivalent killed oral cholera vaccine may be used safely among infants who are most at risk for cholera, the investigators need to determine the safety and immunogenicity of the killed oral cholera vaccine among infants less than 1 year of age when given with the expanded program on immunization (EPI) vaccines including diptheria, pertussis and tetanus (DPT), oral polio vaccine (OPV), Hepatitis B vaccines and measles vaccine. Furthermore, the investigators also need to make sure that immune interference does not occur among all the other vaccine antigens given at the same time. Findings from this study will pave the way for the possible use of the killed whole cell oral cholera vaccine (OCV).

Read the detailed description

Cholera is an important public health problem worldwide, remaining endemic in most of the developing world at the same time causing outbreaks in areas where lapses in sanitation occur.

A monovalent (anti-O1) oral killed cholera vaccine with a B-subunit was developed by Professor Jan Holmgren in Sweden and is now licensed to a pharmaceutical company in the United Kingdom. The technology for this vaccine was transferred to Vietnamese scientists at the National Institute of Hygiene and Epidemiology in Hanoi in the mid-1980s.

The Vietnamese developed a bivalent vaccine, with killed 0139 cells and without the B-subunit. Since licensure, more than 9 million doses have been given without any report of serious adverse events.

The vaccine has been reformulated in order to internationalize the vaccine. Phase II trials of this vaccine in Son La, Vietnam and Kolkata, India have found the vaccine to be safe with no serious adverse reactions associated with the vaccine. A phase III study of the reformulated vaccine is ongoing in Kolkata, India.

The youngest person the vaccine has been administered to was a 1 year old. Previous studies with the B-subunit containing killed whole cell vaccine was found to be safe among infants as young as 6 months eliciting significant vibriocidal responses among 53% of vaccinees. However, no data is available regarding the use of the bivalent whole cell killed oral vaccine in infants.

Due to the higher risk of cholera among infants, the possibility of introducing cholera vaccine as part of the expanded programme on immunization (EPI) needs to be investigated.

Data regarding the safety and immunogenicity of the reformulated bivalent killed whole cell vaccine among infants needs to be gathered in order to pave the way for the possible use of this vaccine in cholera-endemic areas where infants and children are most at risk. Furthermore, there is no data regarding the concomitant use of this vaccine with other EPI vaccines given to young infants such as Diphtheria-Tetanus-whole cell Pertussis (DTwP), Oral Polio Vaccine (OPV) Hepatitis B and Measles vaccines. It would be important to determine if interference exists between the killed whole cell vaccine and other antigens included in the regular EPI schedule. Providing the killed whole cell vaccine in the context of the EPI will make it easier to introduce cholera vaccines in areas which are cholera-endemic.

Being tested
Bivalent killed oral cholera vaccine, Killed Escherichia coli K12 placebo
Keywords
cholera, vaccine, Kolkata, West Bengal, India, immunogenicity, safety, infants, expanded programme on immunization
Medical subject headings
Cholera, Diarrhea, Vibrio Infections

What participants receive

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

  • Bivalent killed oral cholera vaccineBiological

    Also called Shanchol

    Oral, 1.5 ml, given 2 times at least 14 days apart

  • Killed Escherichia coli K12 placeboBiological

    oral, 1.5 ml per dose

Study groups in NCT00548054
Study groupRoleWhat they receive
Vaccine Group for Vibriocidal AssayExperimentalKilled whole cell cholera vaccine bled at day 42 for vibriocidal assay
Receives: Biological: Bivalent killed oral cholera vaccine
Vaccine Group for EPI AssayExperimentalKilled whole cell cholera vaccine bled at day 56 for EPI immunogenicity testing
Receives: Biological: Bivalent killed oral cholera vaccine
Placebo Group for Vibriocidal AssayPlacebo comparatorPlacebo bled at day 42 for vibriocidal assay
Receives: Biological: Killed Escherichia coli K12 placebo
Placebo Group for EPI AssayPlacebo comparatorPlacebo bled at day 56 for EPI immunogenicity testing
Receives: Biological: Killed Escherichia coli K12 placebo
Vaccine Group for Vibriocidal and Measles AssayExperimentalKilled whole cell cholera vaccine bled at day 14 and 28 for measles immunogenicity testing
Receives: Biological: Bivalent killed oral cholera vaccine
Placebo Group for Vibriocidal and Measles AssayPlacebo comparatorPlacebo bled at day 14 and 28 for measles immunogenicity testing
Receives: Biological: Killed Escherichia coli K12 placebo

What is being measured

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

  1. Safety: proportion of subjects with diarrhea

    Measured: entire study period

  2. Immunogenicity: proportion of subjects exhibiting 4-fold or greater rises in titers of serum vibriocidal antibodies, relative to baseline

    Measured: 14 days after each dose

Secondary outcomes (8)
  1. Geometric mean serum vibriocidal titers

    Measured: 14 days after each dose

  2. Proportion of subjects with any of the following: a) immediate reactions 30 minutes and up to 3 days after each dose, b) serious adverse events occurring during the trial, c) any adverse event

    Measured: entire study period

  3. Proportion of subjects with ≥ 0.1 mIU/ml of anti-diphtheria toxoid antibodies

    Measured: 28 days after the third DPT dose

  4. Proportion of subjects with ≥ 0.1 mIU/ml of anti-tetanus toxoid antibodies

    Measured: 28 days after the third DPT dose

  5. For initially seronegative subjects: proportion of subjects with ≥ 15 EU/ml of anti-pertussis IgG and for initially seropositive subjects, proportion with antibody titers equal to or greater than the initial titers prior to vaccination

    Measured: 28 days after DPT dose

  6. Proportion of subjects with ≥ 10 mIU/ml of anti-HbS antibody

    Measured: 28 days after the third dose of Hepatitis B vaccine

  7. Proportion of subjects with ≥ 8 fold dilution of anti-polio virus 1, 2, or 3 antibodies by micro-neutralization test

    Measured: 28 days after the fourth dose of OPV

  8. Proportion of subjects with >150 mIU/ml measles IgG antibodies

    Measured: 28 days after single dose of measles vaccine

Timeline

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

  1. First posted23 Oct 2007 (estimated)
  2. Study startDec 2015
  3. Primary completionAug 2016 (estimated)
  4. Study completionDec 2016 (estimated)

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 2
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Single group
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
300 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00548054
Sponsor's protocol ID
CH-WC-01
Status last verified
May 2015
First submitted
21 Oct 2007
Last updated
4 May 2015
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Bivalent killed oral cholera vaccine in people with Cholera and Diarrhea, run by International Vaccine Institute at 1 site in India.

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 40 inclusion and 0 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: status not confirmed, as of the sponsor's last update on 4 May 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 India. 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. Some participants in this study may receive a placebo. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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

Are results available for this study?

Results are not available in the source record.

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

Contact Vijayalaxmi Mogasale, MD (82-2-881-1151, vlmogasale@ivi.int), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Safety: proportion of subjects with diarrhea (time frame: entire study period). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 4 May 2015.

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