AzTrials
AzTrials

Toxic Shock Syndrome StaphylococcalPhase 1NCT00974935

Phase I STEBVax in Healthy Adults

A Phase 1 study testing Aluminum hydroxide and STEBVax vaccine in people with Toxic Shock Syndrome Staphylococcal, run by National Institute of Allergy and Infectious Diseases (NIAID) at 1 site in United States.

Completed

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

Official record
Search all trials

Trial summary

The main purpose of this study is to test the safety of a new vaccine, STEBVax, which may lead to a useful treatment for toxic shock syndrome. The second purpose is to determine whether STEBVax causes the body to produce antibodies (proteins that fight infection) to help the body resist disease. Read more about this study

Who is it for?
Ages 18 to 40 yearsHealthy volunteers can take part
Conditions the study is for
Toxic Shock Syndrome Staphylococcal
What is being tested?
Aluminum hydroxide and STEBVax vaccine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
29 participants
Where
1 siteUnited States
Study dates
Feb 2011to Mar 2015
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 40 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Ability to provide written informed consent.
  • Age 18 - 40 years, inclusive.
  • Good "general health" as determined by vital signs (heart rate <100 bpm; blood pressure systolic > 90 mm Hg and less than or equal to 140 mm Hg; diastolic > 50 mm Hg and less than or equal to 90 mm Hg; oral temperature <100.4 degrees Fahrenheit), medical history, and a physical examination within 45 days before administration of Recombinant Staphylococcal Enterotoxin B Vaccine (STEBVax). Blood pressure outside this range may be repeated once on another occasion.
  • Expressed interest and availability to fulfill the study requirements
  • Agrees not to become pregnant from the time of study enrollment until at least 90 days after the last administration of STEBVax; if a woman is sexually active and capable of conception (i.e., no history of hysterectomy or tubal ligation), she must agree to use hormonal or barrier birth control such as implants, injectables, combined oral contraceptives, some intrauterine devices (IUDs), condoms with spermicidal agents, or must have a vasectomized partner, or must be sexually abstinent. A woman is eligible if she is monogamous with a vasectomized male
  • Agrees not to participate in another clinical trial at any time during the study period.
  • Agrees to remain in the Baltimore-Washington metropolitan area for 7 days after vaccination.

Who cannot join

  • History of any of the following medical illnesses:
  • Toxic shock syndrome
  • Asthma requiring daily prescription medication
  • Psychiatric disorder requiring hospitalization
  • Anaphylaxis/hypersensitivity reactions to glycine, or alum (vaccine components)
  • Coagulopathy
Show all 46Show fewer
  • Kidney disease
  • Diabetes
  • Cancer
  • Heart disease (hospitalization for a heart attack, arrhythmia, or syncope)
  • Vascular disease (peripheral vascular disease, coronary artery disease, stroke)
  • Arthritis
  • Autoimmune disease (e.g., lupus erythematosis, rheumatoid arthritis)
  • Unconsciousness (other than a single brief "concussion")
  • Seizures (other than febrile seizures as a child <5 years old)
  • Recurrent infections (more than 3 hospitalizations for invasive bacterial infections such as pneumonia or meningitis)
  • Any current illness requiring regular medication therapy other than vitamins or birth control
  • Any clinically significant abnormality including but not limited to:
  • Murmur (other than a functional murmur)
  • Focal neurological
  • Hepatosplenomegaly
  • Lymphadenopathy
  • Jaundice
  • Lab abnormality, as listed below. Toxicity grading scale provided in Appendix B, Normal ranges provided in Appendix C. Laboratories with abnormalities possibly transient in nature may be repeated one time.
  • Hemoglobin, White blood cell count, Neutrophil count, or Platelet count outside the normal range
  • PT, PTT above the normal range
  • Sodium, or potassium outside the normal range
  • Creatinine above normal range
  • Glucose outside the normal range (65 to <110 mg/dL is acceptable if non-fasting test)
  • AST, ALT, alkaline phosphatase, total bilirubin of grade 1 or greater on the toxicity grading scale
  • Urinalysis with proteinuria or hematuria
  • Positive serology for hepatitis C or HIV antibody or hepatitis B surface antigen (Subjects will be informed if their results are positive for hepatitis C, HIV antibody or hepatitis B surface antigen and will be referred to a primary care provider for follow up of these abnormal laboratory tests.)
  • Have a positive urine drug screen.
  • For women, positive serum pregnancy test within 45 days and urine pregnancy test within 24 hours of administering STEBVax at days 0 and for the highest dose group who receive two doses of vaccine, on day 21.
  • Nursing mother
  • Temperature > 38.0 degrees C (100.4 degrees F) or symptoms of an acute self-limited illness such as an upper respiratory infection or gastroenteritis within 7 days before administration of STEBVax
  • Medical, occupational, or family problems as a result of alcohol or illicit drug use during the past 12 months
  • Failure to pass written examination (70 percent correct answers required to pass) on the first attempt. (The exam is administered to assess and document comprehension of the material presented which covers all aspects of the study including the purpose, procedures, risks, benefits and pertinent microbiology).
  • Receipt of an experimental agent (vaccine, drug, device, etc.) within 28 days before administration of STEBVax or expects to receive an experimental agent during the study period.
  • Receipt of any licensed vaccine within 2 weeks (for inactivated vaccines) or 4 weeks (for live vaccines) before vaccination in this study or expects to receive a licensed vaccine before vaccination in this study.
  • Known sensitivity to any ingredient in STEBVax (recombinant protein, glycine, sodium chloride, alum)
  • Prosthetic joint
  • Receipt of immunoglobulin or other blood product within the 3 months prior to vaccination in this study.
  • Immunosuppression as a result of an underlying illness or treatment with immunosuppressive or cytotoxic drugs, or use of anticancer chemotherapy or radiation therapy within the preceding 36 months.
  • Long-term use (> 2 weeks) of oral or parenteral steroids (glucocorticoids), or high-dose inhaled steroids (>800 mcg/day of beclomethasone dipropionate or equivalent) within the preceding 6 months (nasal and topical steroids are allowed).
  • Other condition that in the opinion of the investigator would jeopardize the safety or rights of a volunteer participating in the trial or would render the subject unable to comply with the protocol.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Maryland School of Medicine - Center for Vaccine Development - Baltimore

    Baltimore, Maryland, 21201-1509

Other trials in United States

About this study

Official title: Phase I Study of the Safety and Immunogenicity of Recombinant Staphylococcal Enterotoxin B Vaccine (STEBVax) in Healthy Adults

The main purpose of this study is to test the safety of a new vaccine, STEBVax, which may lead to a useful treatment for toxic shock syndrome. The second purpose is to determine whether STEBVax causes the body to produce antibodies (proteins that fight infection) to help the body resist disease. Researchers expect STEBVax shots will cause the development of antibodies in the blood. Study participants will include up to 42 healthy adults, ages 18-40, from the University of Maryland Baltimore community. Participants will be assigned to one of 7 vaccine dose groups. Assignment to dosage groups will depend on when individuals are enrolled in the study. Study procedures will include blood sampling, urine collection, and physical examinations. Subjects will maintain a memory aid documenting daily oral temperatures and possible vaccine side effects. Participants will be involved in study related procedures for up to 201 days.

Read the detailed description

This study is a Phase I study of the safety and immunogenicity of recombinant Staphylococcal Enterotoxin B vaccine (STEBVax) in healthy adults. STEBVax is a recombinant mutated form of staphylococcal enterotoxin B (SEB) containing three point mutations that disrupt the interaction of the toxin with human major histocompatibility complex (MHC) class II receptors and render the protein non-toxic while retaining most of the immunogenicity. The primary intended result of this program is the development of a hyperimmune serum for treatment of toxic shock syndrome (TSS) originating from nosocomial, environmental or potential bioterrorist events. An additional long-term goal is the development of a multivalent vaccine and immunotherapeutic for treating or preventing diseases caused by Staphylococcus (S.) aureus. The long-range goal is to develop a vaccine that will protect against a broad range of staphylococcal superantigens. The primary objective is to evaluate and assess the safety of parenterally administered STEBVax vaccine in healthy adult subjects over a range of doses from 0.01 to 20 mcg by intramuscular injection. The secondary objectives are to determine the immunogenicity of STEBVax vaccine over a range of doses as determined by the rate and titer of seroconversion with serum anti-S. aureus enterotoxin B IgG antibodies measured by enzyme-linked-immunosorbent serologic assay (ELISA). Participants will include 28 healthy adult subjects from the University of Maryland Baltimore community. Subjects will receive a dose of STEBVax in Alhydrogel adjuvant at one of the following doses: 0.01, 0.1, 0.5, 2.5, 10 or 20 mcg or 2 doses of 20 mcg given 21 days apart. STEBVax will be administered as a single 0.5 mL intramuscular injection. Subjects will be followed for safety, reactogenicity, and immune response after vaccination. Subjects will be observed in the clinic for at least 8 hours after vaccination and remain in the Baltimore-Washington metropolitan area for 7 days after vaccination.

Being tested
Aluminum hydroxide, STEBVax vaccine
Keywords
Staphylococcal enterotoxin B, vaccine, Staphylococcus aureus, toxic shock syndrome
Medical subject headings
Staphylococcal Infections, Shock, Septic

What participants receive

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

  • Aluminum hydroxideDrug

    Single dose of recombinant staphylococcal enterotoxin B vaccine (STEBVax) in Alhydrogel adjuvant at 0.01, 0.1, 0.5, 2.5, 10 or 20 mcg intramuscular and 2 doses of 20 mcg intramuscular 21 days apart. STEBVax vaccine will be administered as a single 0.5 mL intramuscular injection into the deltoid muscle of the non-dominant arm; subjects in the 2 dose cohort will have the vaccine administered in the alternate arm.

  • STEBVax vaccineBiological

    Single dose of recombinant staphylococcal enterotoxin B vaccine (STEBVax) in Alhydrogel adjuvant at 0.01, 0.1, 0.5, 2.5, 10 or 20 mcg intramuscular and 2 doses of 20 mcg intramuscular 21 days apart. STEBVax vaccine will be administered as a single 0.5 mL intramuscular injection into the deltoid muscle of the non-dominant arm; subjects in the 2 dose cohort will have the vaccine administered in the alternate arm.

Study groups in NCT00974935
Study groupRoleWhat they receive
Cohort 1ExperimentalSingle dose of staphylococcal enterotoxin B vaccine (STEBVax) in Alhydrogel adjuvant at 0.01 mcg intramuscular.
Receives: Drug: Aluminum hydroxide; Biological: STEBVax vaccine
Cohort 2ExperimentalSingle dose of staphylococcal enterotoxin B vaccine (STEBVax) in Alhydrogel adjuvant at 0.1 mcg intramuscular.
Receives: Drug: Aluminum hydroxide; Biological: STEBVax vaccine
Cohort 3ExperimentalSingle dose of staphylococcal enterotoxin B vaccine (STEBVax) in Alhydrogel adjuvant at 0.5 mcg intramuscular.
Receives: Drug: Aluminum hydroxide; Biological: STEBVax vaccine
Cohort 4ExperimentalSingle dose of staphylococcal enterotoxin B vaccine (STEBVax) in Alhydrogel adjuvant at 2.5 mcg intramuscular.
Receives: Drug: Aluminum hydroxide; Biological: STEBVax vaccine
Cohort 5ExperimentalSingle dose of staphylococcal enterotoxin B vaccine (STEBVax) in Alhydrogel adjuvant at 10 mcg intramuscular.
Receives: Drug: Aluminum hydroxide; Biological: STEBVax vaccine
Cohort 6ExperimentalSingle dose of staphylococcal enterotoxin B vaccine (STEBVax) in Alhydrogel adjuvant at 20 mcg intramuscular.
Receives: Drug: Aluminum hydroxide; Biological: STEBVax vaccine
Cohort 7ExperimentalTwo doses of staphylococcal enterotoxin B vaccine (STEBVax) in Alhydrogel adjuvant at 20 mcg intramuscular 21 days apart.
Receives: Drug: Aluminum hydroxide; Biological: STEBVax vaccine

What is being measured

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

  1. Data describing safety of Staphylococcal Enterotoxin B Vaccine (STEBVax) (clinical observations and clinical laboratory measurements) given in one of several escalating doses.

    Measured: Through Day 56.

Secondary outcomes (1)
  1. The rate and titer of seroconversion with serum immunoglobulin G (IgG) anti-Staphylococcus aureus enterotoxin B antibodies by enzyme-linked immunosorbent assay (ELISA).

    Measured: Day 56 and, for the two-dose group, day 77 (56 days after the second dose).

Timeline

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

  1. First posted11 Sep 2009 (estimated)
  2. Study startFeb 2011
  3. Primary completionMar 2015
  4. Study completionMar 2015

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
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
29 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00974935
Sponsor's protocol ID
07-0009
Other IDs
HHSN272200800006C
Status last verified
Sep 2014
First submitted
10 Sep 2009
Last updated
19 Jun 2015
Results posted
No

Publications

  • Chen WH, Pasetti MF, Adhikari RP, Baughman H, Douglas R, El-Khorazaty J, Greenberg N, Holtsberg FW, Liao GC, Reymann MK, Wang X, Warfield KL, Aman MJ. Safety and Immunogenicity of a Parenterally Administered, Structure-Based Rationally Modified Recombinant Staphylococcal Enterotoxin B Protein Vaccine, STEBVax. Clin Vaccine Immunol. 2016 Dec 5;23(12):918-925. doi: 10.1128/CVI.00399-16. Print 2016 Dec.

    PubMed 27707765

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Aluminum hydroxide and STEBVax vaccine in people with Toxic Shock Syndrome Staphylococcal, run by National Institute of Allergy and Infectious Diseases (NIAID) at 1 site in United States.

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 7 inclusion and 46 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 19 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 United States. 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?

Data describing safety of Staphylococcal Enterotoxin B Vaccine (STEBVax) (clinical observations and clinical laboratory measurements) given in one of several escalating doses. (time frame: Through Day 56.). 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 NCT00974935, 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 19 Jun 2015.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in