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ShigellosisPhase 1NCT01069471

Safety and Reactogenicity of Bioconjugate Vaccine to Prevent Shigella

A Phase 1 study testing Shigella vaccine in people with Shigellosis, run by GlycoVaxyn AG at 1 site in Switzerland.

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

Healthy volunteers will receive a 2-dose vaccination with Shigella dysenteriae candidate vaccine spaced 8 weeks apart. The objective is to demonstrate the safety and reactogenicity of the Shigella dysenteriae bioconjugate vaccine (GVXN SD133) alone or in combination with an adjuvant (Aluminium Hydroxide). Read more about this study

Who is it for?
Ages 18 to 50 yearsHealthy volunteers can take part
Conditions the study is for
Shigellosis
What is being tested?
Shigella vaccine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
1 siteSwitzerland
Study dates
Feb 2010to Oct 2010
Phase
Phase 1
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 18 to 50 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Subjects of both sexes, aged between 18 and 50 years.
  • Subjects who have undergone a detailed medical history, clinical checkup and are in good health.
  • Subjects who have understood the purpose of the study and have freely signed the informed consent.
  • Subjects who consent with repeated blood samples taking.
  • Subjects who will be available to perform the follow-up visits, are reachable by telephone, and are able to complete the diary cards throughout the study duration.
  • For female volunteers, a negative pregnancy test and an adequate contraception throughout the study duration.

Who cannot join

  • Known history of recent contact Shigella infection or long-term residence in a Shigella endemic region (Central America, Africa, and India).
  • Known history of hypersensitivity to any component of the vaccine (EPA; Aluminium Hydroxide).
  • Subjects with compromised immune system.
  • Family history of congenital or hereditary immunodeficiency.
  • Chronic administration of an immunosuppressive treatment or other immune-modifying drugs within six months prior to the first vaccine dose.
  • Subjects that received any other vaccine during the 1 month preceding the 1st injection and may receive before the 2nd injection. If the subject needs to be vaccinated during this period, he/she will be withdrawn from the study.
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  • Subjects suffering of a disease at the time of enrolment. 'Disease' is defined as the presence of a mild or severe illness with or without fever.
  • Acute or chronic, clinically significant pulmonary, cardiovascular, hepatic or renal functional abnormality, as determined by physical examination or laboratory screening tests.
  • Any laboratory data collected during the screening phase found to be outside the normal range defined by the laboratory.
  • Positive test for HIV, and evidence of HBV or HCV.
  • Pregnant or breast-feeding women.
  • History of alcohol, drug or psychotropic drug abuse (which interferes with a normal lifestyle) during the previous year.
  • Subjects for which follow-up is compromised due to socio-cultural, geographic or psychological reasons.
  • Any other significant finding that in the opinion of the Investigator that would increase the risk of having an adverse outcome from participating in the study.
  • Subjects that are participating or have participated in another clinical trial in the last 6 months.

Trial locations and contacts

1 site in 1 country.

Switzerland1 site
  • Institute of Social and Preventive Medicine

    Zurich

Other trials in Switzerland

About this study

Official title: Safety and Reactogenicity of a Candidate Vaccine Against S. Dysenteriae When Administered to Healthy Adults

Healthy volunteers will receive a 2-dose vaccination with Shigella dysenteriae candidate vaccine spaced 8 weeks apart. The objective is to demonstrate the safety and reactogenicity of the Shigella dysenteriae bioconjugate vaccine (GVXN SD133) alone or in combination with an adjuvant (Aluminium Hydroxide). The safety and reactogenicity of the GVXN SD133 vaccine will be also evaluated at two different concentrations of antigen, Shigella polysaccharide O1. Blood samples will be collected at intervals to examine systemic vaccine antigen-specific immune responses.

Conditions
Shigellosis
Being tested
Shigella vaccine
Keywords
S.dysenteriae, Healthy volunteers, Conjugate vaccine, Safety, Immunogenicity, Dose scaling
Medical subject headings
Dysentery, Bacillary

What participants receive

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

  • Shigella vaccineBiological

    Two intramuscular injections of bioconjugate vaccine will be administrated at D0 and D60.

Study groups in NCT01069471
Study groupRoleWhat they receive
HHD O1-EPA plus adjuvantExperimental10 ug of Shigella dysenteriae polysaccharide O1 conjugated to EPA adjuvanted to aluminium hydroxide
Receives: Biological: Shigella vaccine
HHD O1-EPAExperimental10 ug of Shigella dysenteriae polysaccharide O1 conjugated to EPA
Receives: Biological: Shigella vaccine
LHD O1-EPA adjuvantedExperimental2 ug of Shigella dysenteriae polysaccharide O1 conjugated to EPA adjuvanted to aluminium hydroxide
Receives: Biological: Shigella vaccine
LHD O1-EPAExperimental2 ug of Shigella dysenteriae polysaccharide O1 conjugated to EPA
Receives: Biological: Shigella vaccine

What is being measured

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

  1. Safety and reactogenicity of the bioconjugate vaccine, GVXN SD133

    Measured: Each study visits and at the and of the study

Secondary outcomes (1)
  1. Humoral immunogenicity

    Measured: at day 0, 30, 60, 90 and 150

Timeline

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

  1. First posted17 Feb 2010 (estimated)
  2. Study startFeb 2010
  3. Primary completionOct 2010
  4. Study completionOct 2010

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 1
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01069471
Sponsor's protocol ID
SD 133
Status last verified
Oct 2010
First submitted
15 Feb 2010
Last updated
13 Oct 2010
Results posted
No
Data monitoring committee
Yes

Publications

  • Hatz CF, Bally B, Rohrer S, Steffen R, Kramme S, Siegrist CA, Wacker M, Alaimo C, Fonck VG. Safety and immunogenicity of a candidate bioconjugate vaccine against Shigella dysenteriae type 1 administered to healthy adults: A single blind, partially randomized Phase I study. Vaccine. 2015 Aug 26;33(36):4594-601. doi: 10.1016/j.vaccine.2015.06.102. Epub 2015 Jul 7.

    PubMed 26162850

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Shigella vaccine in people with Shigellosis, run by GlycoVaxyn AG at 1 site in Switzerland.

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 6 inclusion and 15 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 13 Oct 2010. 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 Switzerland. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Safety and reactogenicity of the bioconjugate vaccine, GVXN SD133 (time frame: Each study visits and at the and of the study). 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 NCT01069471, 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 13 Oct 2010; AzTrials last refreshed its copy on 7 Nov 2026.

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