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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/study/NCT06562790




Registration number
NCT06562790
Ethics application status
Date submitted
18/08/2024
Date registered
20/08/2024
Date last updated
19/09/2024

Titles & IDs
Public title
Study of Gamma PN3 in the Elderly
Scientific title
A Phase 1, Randomised, Active-controlled, Blinded, Dose-ranging Study of the Safety, Tolerability, and Immunogenicity of an Inactivated Whole-cell Pneumococcal Vaccine (Gamma-PN3) in Elderly Participants
Secondary ID [1] 0 0
GPNV-006
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Pneumonia, Pneumococcal 0 0
Condition category
Condition code
Respiratory 0 0 0 0
Other respiratory disorders / diseases
Infection 0 0 0 0
Other infectious diseases

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Other - Gamma PN3
Treatment: Other - Prevnar

Experimental: Gamma-PN3 - 2 doses on Days 1 and 29

Active comparator: Prevnar - 1 dose on Day 1 and saline placebo on Day 29.


Treatment: Other: Gamma PN3
500, 1000 or 1500 µg by IM injection on Days 1 and 29

Treatment: Other: Prevnar
1 dose on Day 1 and saline placebo on Day 29
Intervention code [1] 0 0
Treatment: Other
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Adverse events
Timepoint [1] 0 0
57 days
Primary outcome [2] 0 0
Geometric fold increase in IgG titre
Timepoint [2] 0 0
56 days
Secondary outcome [1] 0 0
Geometric fold increase in OPA titre to 36 serotypes of S. pneumoniae
Timepoint [1] 0 0
56 days
Secondary outcome [2] 0 0
Geometric fold increase in IgA
Timepoint [2] 0 0
56 days
Secondary outcome [3] 0 0
Memory B cells
Timepoint [3] 0 0
56 days
Secondary outcome [4] 0 0
Rate of community acquired pneumonia
Timepoint [4] 0 0
1 year

Eligibility
Key inclusion criteria
1. Male or female volunteers aged 70 years and over at Screening.
2. In stable good general health as determined by the outcome of medical history, physical examination, and clinical judgement by the Investigator. Chronic stable non-inflammatory conditions such as hypertension, hyperlipidemia, well-controlled type 2 diabetes, stable asthma, controlled psychiatric conditions such as anxiety or depression, stable ischemic heart disease with heart failure not greater than NYHA Grade 1 and 2 are permitted, as determined by the Investigator.
3. Willing and able to give voluntary written informed consent before screening assessments commence.
4. Vital signs within the following ranges (inclusive):

• Body temperature 35.5 to 37.7°C
* Heart rate 50 to 100 beats per minute although atrial fibrillation is allowed.
* Respiratory rate 12 to 22 breaths per minute
* Systolic blood pressure 90 to 160 mmHg
* Diastolic blood pressure 50 to 95 mmHg
5. 12-lead ECG parameters within the following ranges:

• QTcB & QTcF - males =450 msec. females =470 msec
* PR 100 to 240 msec inclusive
* Heart rate (HR) 50 to 100 beats per minute (bpm) inclusive; atrial fibrillation is allowed.
6. Willing and able to communicate with the Investigator and study team and understands the requirements of the study.
7. Willing and able to undertake the study visits and all assessments, including possessing a suitable device and access to the internet for using the web-based electronic diary (e.g., smartphone, tablet, or computer) and able to use the device for this purpose.
8. Vaccinated against severe acute respiratory syndrome corona virus 2 (SARS-CoV-2; COVID-19) with a minimum of a prime and boost vaccinations.
Minimum age
70 Years
Maximum age
No limit
Sex
Both males and females
Can healthy volunteers participate?
Yes
Key exclusion criteria
* 1. History of a previous Pneumovax 23® vaccination in last 12 months. 2. History of a previous Prevenar 13® or Prevenar 20® vaccination in last 12 months.

3. Positive serology blood test for human immunodeficiency virus (HIV) antibodies, hepatitis B virus (HBV) surface antigen or Hepatitis C virus (HCV) antibodies. Positive serology to Hepatitis C due to previous successfully treated infection with negative polymerase chain reaction (PCR) is not exclusionary.

4. Infectious disease including but not limited to COVID-19 and influenza within 30 days before Screening and any time between Screening and Day 1 first dose, as this may confound immune response to study vaccine.

5. Liver function tests (including aspartate aminotransferase [AST], alanine aminotransferase [ALT], bilirubin) >1.5 upper limit of normal (ULN).

6. Clinically significant abnormalities in laboratory tests (biochemistry, haematology), physical examination, or 12-lead ECG during the Screening period that, in the opinion of the Investigator, would affect immune response to vaccination and/or ability to fully participate in the study and/or not be in the individual's best interest to participate in the study. One re-test per abnormality is permitted.

7. Participation in another clinical study of any investigational or licensed product (including investigational COVID-19 vaccines, drugs, medical devices) or medical procedure within 4 weeks from last study visit before screening.

8. Plan to have a vaccine during the study period including COVID-19 booster. 9. Have had a live vaccine within three months of the first dose of study product or any other vaccine (including any COVID-19 vaccine) within 28 days of the first dose of study product.

Examples of live vaccines include, but are not limited to the following: measles, mumps, rubella, chicken pox/zoster (Zostavax; Shingrix is allowed), monkeypox, yellow fever, rabies, Bacillus Calmette-Guérin, and typhoid (oral) vaccines. Seasonal influenza vaccines for injection are generally killed virus vaccines and are permitted if administered at least 28 days before the first dose of study treatment and not during the enrollment or the study period. However, intranasal influenza vaccines are live attenuated vaccines and are not permitted within three months of first dose.

10. Have received blood or blood-derived products in the last three months before screening, which might interfere with assessment of the immune response.

11. Known or suspected congenital or acquired immunodeficiency; or receipt of immunosuppressive therapy such as anti-cancer chemotherapy or radiation therapy within the last six months before screening; or long-term systemic corticosteroid therapy (prednisone at a dose of 5mg daily or equivalent for more than two consecutive weeks within the last month before screening, depot or intraarticular steroids within 3 months before screening).

12. A systemic inflammatory condition such as rheumatoid arthritis or inflammatory bowel disease.

13. Any medical condition requiring immunosuppressive therapy. 14. History of severe allergic reaction e.g., severe cutaneous adverse reaction or anaphylaxis to any medicinal product or to any of the study treatments, including excipients.

15. Current alcohol abuse (> 21 U/week for men and 14 U/week for women), substance dependence including nicotine/tobacco smoking (defined as more than 5 cigarettes or tobacco/nicotine equivalent per day; smoking or vaping will not be permitted while at the study unit), any use of illicit drugs or other addiction which might interfere with the ability to comply with study procedures in the opinion of the Investigator; positive drugs of abuse screen (tricyclic antidepressants, opioids, and benzodiazepines are not exclusionary if prescribed by a physician and consistent with medical history) or positive alcohol breath test at Screening or pre-dose. One re-test permitted for drugs of abuse screen where justified (e.g., false positive suspected).

16. Clinically significant chronic illness that, in the opinion of the Investigator, is at a stage where it might interfere with study conduct or completion. Examples include congestive heart failure NHYA Grade 3 or 4, COAD with breathlessness interfering with daily activities; severe psychiatric conditions, poorly controlled asthma or diabetes 17. Any chronic medical condition e.g., asthma, gout, which is likely to need systemic corticosteroid therapy during the study.

18. Renal impairment requiring dialysis 19. Identified as a site employee of the Investigator or study center, with direct involvement in the proposed study or other studies under the direction of that Investigator or study center, as well as family members (i.e., immediate, husband, wife or de facto and their children, adopted or natural) of the site employees or the Investigator.

20. Poor venous access making scheduled blood sampling likely to be unsuccessful

Study design
Purpose of the study
Prevention
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s
The people assessing the outcomes
The people analysing the results/data
Intervention assignment
Parallel
Other design features
Phase
Phase 1
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Recruiting
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
26/08/2024
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
1/06/2026
Actual
Sample size
Target
105
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
SA
Recruitment hospital [1] 0 0
CMAX Fusion - Adelaide
Recruitment postcode(s) [1] 0 0
5065 - Adelaide

Funding & Sponsors
Primary sponsor type
Commercial sector/industry
Name
GPN Vaccines
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
Phase 1 double- blind randomised active comparator dose escalating study of Gamma PN3 in the elderly
Trial website
https://clinicaltrials.gov/study/NCT06562790
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Paul Rolan, MD
Address 0 0
Country 0 0
Phone 0 0
0405670420
Fax 0 0
Email 0 0
[email protected]
Contact person for scientific queries



Summary Results

For IPD and results data, please see https://clinicaltrials.gov/study/NCT06562790