Safety and Immunogenicity of CJCV2 With and Without ALFQ

  • STATUS
    Recruiting
  • participants needed
    60
  • sponsor
    National Institute of Allergy and Infectious Diseases (NIAID)
Updated on 19 January 2024
Accepts healthy volunteers

Summary

This is a randomized, double-blind, dose-escalating, outpatient trial in a total of approximately 60 subjects, assigned to 3 cohorts (20 subjects per cohort). Each subject will receive one of three intramuscular (IM) vaccinations, spaced 28 days apart, of Campylobacter jejuni Conjugate Vaccine (CJCV2) with or without a fixed dose of the adjuvant Army Liposome Formulation containing QS-21 (ALFQ)(200 mcg 3D-PHAD, 100 mcg QS-21). Three doses (1 ug, 3 ug and 10 ug) of CJCV2 will be evaluated. The first six participants at each dose will be sentinels and randomized in a 1:1 blinded fashion to receive CJCV2 with or without ALFQ. The primary objective is to evaluate the safety of the three different doses of IM injection of CJCV2 with and without ALFQ. The study hypothesis is that the CJCV2 vaccine alone and CJCV2 with ALFQ adjuvant will be safe and that the CJCV2 alone will be immunogenic, with immunogenicity enhanced through the use of the adjuvant ALFQ.

Description

This is a randomized, double-blind, dose-escalating, outpatient trial in a total of approximately 60 subjects, assigned to 3 cohorts (20 subjects per cohort). Each subject will receive one of three intramuscular (IM) vaccinations, spaced 28 days apart, of Campylobacter jejuni Conjugate Vaccine (CJCV2) with or without a fixed dose of the adjuvant Army Liposome Formulation containing QS-21 (ALFQ)(200 mcg 3D-PHAD, 100 mcg QS-21).Three doses (1 ug, 3 ug and 10 ug) of CJCV2 will be evaluated. The first six participants at each dose will be sentinels and randomized in a 1:1 blinded fashion to receive CJCV2 with or without ALFQ. The primary objective is to evaluate the safety of the three different doses of IM injection of CJCV2 with and without ALFQ. The secondary objective is to evaluate C. jejuni capsule-specific serum IgG responses following vaccination. The study hypothesis is that the CJCV2 vaccine alone and CJCV2 with ALFQ adjuvant will be safe and that the CJCV2 alone will be immunogenic, with immunogenicity enhanced through the use of the adjuvant ALFQ.

Details
Condition Campylobacter Infection
Age 18years - 50years
Treatment ALFQ, CJCV2
Clinical Study IdentifierNCT05500417
SponsorNational Institute of Allergy and Infectious Diseases (NIAID)
Last Modified on19 January 2024

Eligibility

Yes No Not Sure

Inclusion Criteria

Provide informed consent prior to initiation of any study procedures
Able to understand and comply with planned study procedures and be available for all study visits/safety communications
Non-pregnant/non-lactating subjects 18-50 years of age inclusive upon enrollment
In general, good health _to be safely enrolled in this study as determined by medical history, medication use_ , and physical exam
Good health is defined by the absence of any exclusionary medical conditions. If the subject has another current, ongoing medical condition, the condition cannot meet any of the following criteria; 1) first diagnosed within 3 months of enrollment; 2) is worsening in terms of clinical outcome in last 6 months; or 3) involves need for medication that may pose a risk to subject's safety or impede assessment of AEs or immunogenicity if they participate in the study
Topical, nasal, and inhaled medications (with the exception of inhaled
corticosteroids as outlined in the Subject Exclusion #17). Herbals, vitamins
and supplements are permitted
Oral temperature is less than 100.4 degrees F
Pulse is 50 to 100 beats per minute (bpm), inclusive
Systolic blood pressure (BP) is 90 to 140 mmHg, inclusive
Diastolic BP is 55 to 90 mmHg, inclusive
Body Mass Index(BMI) less than 40
Females of childbearing potential _may enroll if subject has practiced adequate contraception_ > 30 days prior to enrollment and agrees to continue adequate contraception for the entire study
Child-bearing potential is defined as not sterilized via tubal ligation, bilateral oophorectomy, salpingectomy, hysterectomy, or successful Essure (R) placement (permanent, non-surgical, non-hormonal sterilization) with documented radiological confirmation test at least 90 days after the procedure, and still menstruating or <1 year of the last menses if menopausal
Adequate contraception includes; non-male sexual relationships, abstinence
from sexual intercourse with a male partner, monogamous relationship with
vasectomized partner who has been vasectomized for 180 days or more prior to
the subject receiving the first study vaccination, barrier methods such as
condoms or diaphragms with spermicide, effective intrauterine devices
NuvaRing (R), and licensed hormonal methods such as implants, injectables, or
oral contraceptives ("the pill")
Females of childbearing potential must have a negative urine pregnancy test within 24 hours prior to enrollment
Agree not to participate in another interventional clinical trial during the study period that may affect the analysis or endpoint assessment
Negative urine drug screen for opiates

Exclusion Criteria

Have any disease or medical condition that, in the opinion of the site PI or appropriate sub-investigator, is a contraindication to study participation
Including acute or chronic disease or medical condition that would place the subject at an unacceptable risk of injury, render the subject unable to meet the requirements of the protocol, or may interfere with the evaluation of responses or the subject's successful completion of this trial
These include
History of inflammatory bowel disease (IBD) (including ulcerative colitis
Crohn's disease, indeterminate colitis, or celiac disease). Within the past 12
months, has any of the following: irritable bowel syndrome (IBS) or any active
uncontrolled gastrointestinal disorders or diseases as assessed by the
investigator, including symptoms or evidence of active gastritis or
gastroesophageal reflux disease, gastric surgery or gastric acid hyper-
secretory disorders (e.g., Zollinger-Ellison syndrome), gastrointestinal
obstruction, ileus, gastric retention, bowel perforation, toxic colitis
persistent infectious gastroenteritis, persistent or chronic diarrhea of
unknown etiology, Clostridium difficile infection. History of immunodeficiency
due to congenital or hereditary causes, underlying illness or treatment
autoimmune disorders, or chronic inflammatory disorders. History of an
inflammatory arthritis such as reactive arthritis, Reiter's syndrome
ankylosing spondylitis, rheumatoid arthritis, or GBS. Known active neoplastic
disease non-melanoma, treated, skin cancers are permitted, a history of any
hematologic malignancy, or have used anticancer chemotherapy/radiation therapy
(cytotoxic) within 5 years prior to study vaccination. Other condition
requiring daily therapy that would place the volunteer at increased risk or
Adverse Events (AE). Other laboratory abnormalities which in the opinion of
the investigator precludes participation in the study. Clinically significant
abnormalities on physical exam
Documented history of auto-immune conditions in a first-degree relative. Examples include reactive arthritis, Reiter's syndrome, ankylosing spondylitis, rheumatoid arthritis, or GBS
History of Potentially Immune-Mediated Medical Conditions (PIMMCs)
Evidence of inflammatory arthritis on exam and/or positive serology results for HLA-B27
Positive Human Immunodeficiency Virus (HIV), Hepatitis B Surface Antigen (HBsAg), or Hepatitis C antibodies (HCVs)
Participation in a previous Campylobacter study or reports having received vaccination against Campylobacter within the last 3 years
History of microbiologically confirmed Campylobacter infection in the last 3 years
Occupation involving handling of Campylobacter bacteria or vaccine products currently or in the past 3 years
Use of immunosuppressive/immunomodulating disease therapy within 90 days
Received Immunoglobulin (Ig) or other blood products (with exception of Rho D Ig) within 90 days prior to enrollment
Have a history of severe reactions following previous immunization with any licensed or unlicensed vaccine
Known hypersensitivity to any components of vaccine, adjuvant or diluent
Received or plan to receive a licensed live vaccine within 30 days prior to 1st vaccination and to 30 days after the last vaccination
Received or plan to receive a licensed, inactivated, vaccine within 14 days prior to 1st vaccination to 14 days after the last vaccination, or a seasonal influenza and/or COVID-19 vaccine +/- 7 days from study product vaccination
Individuals in whom the ability to observe possible local reactions at the eligible injection sites (deltoid region) is unacceptably obscured due to a physical condition or permanent body art
Within 14 days prior to vaccination has received an oral or parenteral (including intra-articular) corticosteroid of any dose for 5 or more days, or high-dose inhaled corticosteroids. a) High dose defined per age as using inhaled high dose per reference chart (<https://www.nhlbi.nih.gov/files/docs/guidelines/asthma_qrg.pdf>)
Current or history of alcohol or drug abuse within one year prior to enrollment
Have any diagnosis, current or past, of schizophrenia, bipolar disease, or other psychiatric diagnosis that may interfere with subject compliance or safety evaluations
Have been hospitalized for psychiatric illness, history of suicide attempt, or confinement for danger to self or others within one year prior to enrollment
Are pregnant, breastfeeding, or plan to become pregnant or breastfeed at any given time during the study
Have an acute illness as determined by study clinician licensed to make medical diagnoses and listed on the Form FDA 1572 as the site PI or sub-investigator, within 72 hours prior to enrollment
An acute illness which is nearly resolved with only minor residual symptoms remaining is allowable if, in the opinion of a study clinician licensed to make medical diagnoses and listed on the Form FDA 1572 as the site PI or sub-investigator, the residual symptoms will not interfere with the ability to assess safety parameters as required by the protocol
Received an investigational product within 30 days prior to the first study
vaccination or expect to receive an investigational product during the study
period
Including vaccine, drug, biologic, device, blood product, or medication, other than from participation in this trial
Have abnormal screening laboratory values within 30 days prior to enrollment. a
Screening laboratory values that are outside acceptable range but are thought
to be due to an acute condition or due to laboratory error may be repeated
once
Clear my responses

How to participate?

Step 1 Connect with a study center
Message sent successfully.
We have submitted the information you provided to the research team at the location you chose. For your records, we have sent a copy of the message to your email address.
If you would like to be informed of other studies that may be of interest to you, you may sign up for Patient Notification Service.
Sign up

Send a message

Enter your contact details to connect with study team

Investigator Avatar

Primary Contact

First name*
Last name*
Email*
Phone number*
Other language

Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.

Learn more

If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

Learn more

Complete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.

Learn more

Similar trials to consider

Loading...

Browse trials for

Not finding what you're looking for?

Every year hundreds of thousands of volunteers step forward to participate in research. Sign up as a volunteer and receive email notifications when clinical trials are posted in the medical category of interest to you.

Sign up as volunteer
Add a private note
  • abc Select a piece of text.
  • Add notes visible only to you.
  • Send it to people through a passcode protected link.