Title

Safety and Immunogenicity of a Group B Streptococcus Vaccine in Non-pregnant Women 18-40 Years of Age.
A Two-part, Phase I, Randomised, Double-blind, Placebo-controlled, Parallel Group Study to Evaluate the Safety, Tolerability and Immunogenicity of a Dose Range og Group B Streptococcus Vaccine in Healthy Female Volunteers Aged 18 to 40.
  • Phase

    Phase 1
  • Study Type

    Interventional
  • Study Participants

    240
Part A: The primary objective is to evaluate the safety and tolerability of a potential vaccine against Group B streptococcus.

Part B: To evaluate the long term safety profile of the GBS-NN vaccine up to one year following the first dose.
Part A: Subjects will receive 2 doses of the vaccine, GBS-NN, and will be followed for 12 weeks after the first dose of the vaccine. The following safety endpoints will be evaluated to support this objective: local and systemic reactogenicity; adverse events; laboratory tests; urinalysis; vital signs; 12-Lead ECG parameters; physical examination. In addition hereto, immunological parameters will be evaluated.

Part B: Subjects will receive one or 2 doses of GBS-NN, and will be followed for 12 months after the first dose of the vaccine. The following safety endpoints will be evaluated to support this objective: local and systemic reactogenicity; adverse events; laboratory tests; urinalysis; vital signs; 12-Lead ECG parameters; physical examination. In addition hereto, immunological parameters will be evaluated.
Study Started
May 31
2015
Primary Completion
Apr 12
2017
Study Completion
Apr 21
2017
Results Posted
Jan 14
2021
Last Update
Jan 14
2021

Biological GBS-NN vaccine

Three dose levels will be administered, with and without Alhydrogel®

GBS-NN Vaccine Active Comparator

GBS-NN vaccine administered either adsorbed to Alhydrogel® or alone.

Sterile dilution buffer with Alhydrogel Placebo Comparator

The placebo will contain either Alhydrogel® or buffer alone.

Criteria

Inclusion Criteria:

Healthy adult female volunteers (as determined by medical history, physical examination, laboratory test values, vital signs and electrocardiograms [ECGs] at screening) aged 18 - 40 years.
Body mass index (BMI) ≥ 18 and ≤ 30 kg/m2.
Volunteers weight ≥ 50kg and ≤100kg at screening.
Able to voluntarily provide written informed consent to participate in the study.
Must understand the purposes and risks of the study and agree to follow the restrictions and schedule of procedures as defined in the protocol.
Volunteers must be pre-menopausal. Volunteers who have had a hysterectomy will have pre-menopausal status confirmed by a FSH and oestradiol test.
Females of childbearing potential must have a negative pregnancy test at screening (β HCG) and prior to each dose and must be willing to use an adequate and highly effective method of contraception until at least Day 85 of the study. A highly effective method of birth control is defined as one which results in a low failure rate (i.e. less than 1% per year) when used consistently and correctly such as sterilisation, implants, injectables, combined oral contraceptives, IUDs (Intrauterine Device), condoms, occlusive caps (cervical/vault caps) with spermicidal foam/gel/ film/cream/suppository. True sexual abstinence is acceptable when this is in line with the preferred and usual lifestyle of the volunteer (periodic abstinence e.g. calendar, ovulation, symptothermal, post-ovulation methods, declaration of abstinence for the duration of the trial, and withdrawal are not acceptable methods of contraception)
In Part A: Volunteers must be non-smokers for at least 3 months prior to first studyvaccine administration. In Part B: Volunteers may be light smokers i.e. up to a maximum of 5 cigarettes per day or nicotine equivalent.
Must be willing to consent to have data entered into The Over Volunteering Prevention System (TOPS).
The volunteer's primary care physician has confirmed within the last 12 months that there is nothing in their medical history that would preclude their enrolment into a clinical trial.

Exclusion Criteria:

Volunteers with history or presence of significant cardiovascular disease, pulmonary, hepatic, gallbladder or biliary tract, renal, haematological, gastrointestinal, endocrine, immunologic, dermatological, neurological, psychiatric, autoimmune disease or current infection.
Pregnant or lactating females.
Laboratory values at screening which are deemed to be clinically significant, unless agreed in advance by the Sponsor's Responsible Medic and Principal Investigator.
Current or history of drug or alcohol abuse, or a positive alcohol breath test prior to first dosing.
Positive for human immunodeficiency virus (HIV), hepatitis B or hepatitis C.
Participation in a clinical drug study during the 90 days preceding the initial dose in this study.
Any significant illness during the 4 weeks preceding check-in for this study (Day 1).
Volunteers with a history of severe allergic reactions after previous vaccination.
Volunteers who have received any vaccine within 30 days of screening, or who are planning to receive a vaccine up to Day 85 of the study.
Volunteers receiving immunosuppressive therapy (e.g. systemic steroids, cancer therapies, methotrexate, azathioprine) in the 6 months prior to screening, antibiotics within 10 days of receiving the first dose or taking any short-term medications including over-the-counter preparations, vitamins, herbal and/or mineral supplements within 7 days of the first dose. Chronic medications such as antihypertensives, bronchodilators, oral contraceptives or statins that do not affect the immune system, will be permitted and allowed to continue during the study at the discretion of the Investigator. Paracetamol will be permitted for the treatment of headache or other symptoms.
Volunteers with tattoos at the proposed site of vaccine administration.
Donation of blood or blood products within 90 days prior to vaccine administration.
Volunteers who, in the opinion of the Investigator, are unsuitable for participation in the study.

Summary

Part A GBS-NN Vaccine 10mcg

Part A GBS-NN Vaccine 50mcg

Part A GBS-NN Vaccine 250mcg

Part A GBS-NN Vaccine 10mcg With Alhydrogel® Adjuvant

Part A GBS-NN Vaccine 50mcg With Alhydrogel® Adjuvant

Part A GBS-NN Vaccine 250mcg With Alhydrogel® Adjuvant

Part A Placebo

Part B GBS-NN Vaccine 50mcg

Part B GBS-NN Vacine 100mcg 2 Dose Regimen

Part B GBS-NN Vacine 100mcg Single Dose

Part B Placebo

All Events

Event Type Organ System Event Term Part A GBS-NN Vaccine 10mcg Part A GBS-NN Vaccine 50mcg Part A GBS-NN Vaccine 250mcg Part A GBS-NN Vaccine 10mcg With Alhydrogel® Adjuvant Part A GBS-NN Vaccine 50mcg With Alhydrogel® Adjuvant Part A GBS-NN Vaccine 250mcg With Alhydrogel® Adjuvant Part A Placebo Part B GBS-NN Vaccine 50mcg Part B GBS-NN Vacine 100mcg 2 Dose Regimen Part B GBS-NN Vacine 100mcg Single Dose Part B Placebo

Part B Number of Participants With Treatment Emergent Adverse Events

Number of Participants with Treatment Emergent Adverse Events

Part B GBS-NN Vaccine 50mcg

41.0
participants

Part B GBS-NN Vacine 100mcg 2 Dose Regimen

39.0
participants

Part B GBS-NN Vacine 100mcg Single Dose

31.0
participants

Part B Placebo

37.0
participants

Part A Number of Participants With Treatment Emergent Adverse Events

Number of Participants with Treatment Emergent Adverse Events

Part A GBS-NN Vaccine 10mcg

6.0
participants

Part A GBS-NN Vaccine 50mcg

5.0
participants

Part A GBS-NN Vaccine 250mcg

5.0
participants

Part A GBS-NN Vaccine 10mcg With Alhydrogel® Adjuvant

6.0
participants

Part A GBS-NN Vaccine 50mcg With Alhydrogel® Adjuvant

8.0
participants

Part A GBS-NN Vaccine 250mcg With Alhydrogel® Adjuvant

8.0
participants

Part A Placebo

11.0
participants

Part A Antibody Concentration

Geometric mean antibody concentration

Part A GBS-NN Vaccine 10mcg

1.977
mcg/mL (Geometric Mean)
Full Range: 0.021 to 35.8

Part A GBS-NN Vaccine 50mcg

2.926
mcg/mL (Geometric Mean)
Full Range: 0.27 to 17.4

Part A GBS-NN Vaccine 250mcg

7.195
mcg/mL (Geometric Mean)
Full Range: 0.865 to 106.0

Part A GBS-NN Vaccine 10mcg With Alhydrogel® Adjuvant

16.864
mcg/mL (Geometric Mean)
Full Range: 1.11 to 263.0

Part A GBS-NN Vaccine 50mcg With Alhydrogel® Adjuvant

14.999
mcg/mL (Geometric Mean)
Full Range: 2.95 to 83.0

Part A GBS-NN Vaccine 250mcg With Alhydrogel® Adjuvant

25.431
mcg/mL (Geometric Mean)
Full Range: 0.59 to 277.0

Part A Placebo

0.199
mcg/mL (Geometric Mean)
Full Range: 0.03 to 1.61

Part B Antibody Concentration

Geometric mean antibody concentration

Part B GBS-NN Vaccine 50mcg

16.914
mcg/mL (Geometric Mean)
Full Range: 0.9 to 247.0

Part B GBS-NN Vacine 100mcg 2 Dose Regimen

15.459
mcg/mL (Geometric Mean)
Full Range: 0.35 to 314.0

Part B GBS-NN Vacine 100mcg Single Dose

3.035
mcg/mL (Geometric Mean)
Full Range: 0.17 to 50.2

Part B Placebo

0.234
mcg/mL (Geometric Mean)
Full Range: 0.03 to 15.8

Part B Antibody Concentration

Geometric mean antibody concentration

Part B GBS-NN Vaccine 50mcg

4.201
mcg/mL (Geometric Mean)
Full Range: 0.24 to 58.4

Part B GBS-NN Vacine 100mcg 2 Dose Regimen

5.934
mcg/mL (Geometric Mean)
Full Range: 0.2 to 314.0

Part B GBS-NN Vacine 100mcg Single Dose

1.596
mcg/mL (Geometric Mean)
Full Range: 0.06 to 117.0

Part B Placebo

0.263
mcg/mL (Geometric Mean)
Full Range: 0.03 to 50.5

Part B Number of Participants With Treatment Emergent Adverse Events

Number of Participants with Treatment Emergent Adverse Events

Part B GBS-NN Vaccine 50mcg

16.0
participants

Part B GBS-NN Vacine 100mcg 2 Dose Regimen

23.0
participants

Part B GBS-NN Vacine 100mcg Single Dose

22.0
participants

Part B Placebo

21.0
participants

Total

240
Participants

Age, Continuous

29.5
years (Mean)
Standard Deviation: 6.3

Ethnicity (NIH/OMB)

Race (NIH/OMB)

Region of Enrollment

Sex: Female, Male

Overall Study

Part A GBS-NN Vaccine 10mcg

Part A GBS-NN Vaccine 50mcg

Part A GBS-NN Vaccine 250mcg

Part A GBS-NN 10mcg Vaccine Administered With Alhydrogel® Adjuvant

Part A GBS-NN 50mcg Vaccine Administered With Alhydrogel® Adjuvant

Part A GBS-NN 250mcg Vaccine Administered With Alhydrogel® Adjuvant

Part A Placebo

Part B GBS-NN Vaccine 50mcg

Part B GBS-NN Vaccine 100mcg 2 Dose Regimen

Part B GBS-NN Vaccine 100mcg Single Dose

Part B Placebo

Drop/Withdrawal Reasons

Part B GBS-NN Vaccine 100mcg Single Dose