A Phase I Clinical Trial to Evaluate the Ebola Adenovirus Vector Vaccine (Ad5-EBOV) in Healthy Adults.

NCT ID: NCT02326194

Last Updated: 2015-08-28

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

120 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-12-31

Study Completion Date

2015-07-31

Brief Summary

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Since its first outbreak occurred in 1976, Zaire Ebola virus have been associated with 14 outbreaks reported up to 2014. The Zaire Ebola virus in 2014 causing the most serious outbreak was considered to be a new epidemic strain, with GP homology of the gene was only 97.6%, compared to the GP gene of the strain in 1976. This investigational Ad5-EBOV vaccine was developed according to the 2014 epidemic Zaire strain and formulated as freeze-dry products which could be stored at 4℃.

This is a single center, double-blind, placebo control, dose-escalation phase 1 clinical trial. This study will determine the safety and side-effect profile, and immunogenicity of an investigational Ad5-EBOV vaccine.

Detailed Description

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Conditions

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Ebola Virus Disease

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

TRIPLE

Participants Caregivers Investigators

Study Groups

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Placebo group (one shot)

one dose

Group Type PLACEBO_COMPARATOR

placebo (one dose)

Intervention Type BIOLOGICAL

placebo, one doses

Placebo group (two shots)

two doses, with one dose to each arm at a same time.

Group Type PLACEBO_COMPARATOR

placebo (two doses)

Intervention Type BIOLOGICAL

placebo, two doses, with one dose to each arm at a same time.

Low dose vaccine group

one dose, low dose Ebola Zaire vaccine (Ad5-EBOV)

Group Type EXPERIMENTAL

Low dose Ebola Zaire vaccine (Ad5-EBOV)

Intervention Type BIOLOGICAL

one dose, Low dose Ebola Zaire vaccine (Ad5-EBOV)

High dose vaccine group

two doses, high dose, with one dose to each arm at a same time

Group Type EXPERIMENTAL

High dose Ebola Zaire vaccine (Ad5-EBOV)

Intervention Type BIOLOGICAL

two doses, High dose Ebola Zaire vaccine (Ad5-EBOV), with one dose to each arm at a same time.

Interventions

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Low dose Ebola Zaire vaccine (Ad5-EBOV)

one dose, Low dose Ebola Zaire vaccine (Ad5-EBOV)

Intervention Type BIOLOGICAL

High dose Ebola Zaire vaccine (Ad5-EBOV)

two doses, High dose Ebola Zaire vaccine (Ad5-EBOV), with one dose to each arm at a same time.

Intervention Type BIOLOGICAL

placebo (one dose)

placebo, one doses

Intervention Type BIOLOGICAL

placebo (two doses)

placebo, two doses, with one dose to each arm at a same time.

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* Aged between 18 and 60 years.
* Able to understand the content of informed consent and willing to sign the informed consent
* Able and willing to complete all the secluded study process during the whole study follow-up period (about 6 months).
* A body mass index (BMI) \<35
* Hemoglobin 110-150g/L for female, and 120-160g/L for male.
* White blood cells (WBC) 4.0-10.0×109 cells/L
* Total lymphocyte Count 0.8-4.5×109 cells/L
* Platelets 100-300×109 cells/L
* Alanine aminotransferase (ALT) 0-40U/L
* Serum creatinine 44-106μmol/L
* Partial thromboplastin time (PTT) 20-40 seconds
* Prothrombin time (PT) 10-14 seconds
* Negative in HIV diagnostic blood test
* Axillary temperature ≤37.0°C on the day of enrollment
* General good health as established by medical history and physical examination.

Exclusion Criteria

* Family history of seizure, epilepsy, brain or mental disease
* Subject that has a medical history of any of the following: allergic history of any vaccination or drugs, or allergic to any ingredient of the Ad5-EBOV vaccine, such as mannitol
* Woman who is pregnant, breast-feeding or positive in β-HCG (human chorionic gonadotropin) pregnancy test (urine) on day of enrollment, or become pregnant during the next 6 months
* Any acute fever disease or infections in last 7 days
* Major congenital defects or not well-controlled chronic illness, such as asthma, diabetes, or thyroid disease
* Hereditary angioneurotic edema or acquired angioneurotic edema
* Urticaria in last one year
* Asplenia or functional asplenia
* Platelet disorder or other bleeding disorder may cause injection contraindication
* Faint at the sight of blood or needles.
* Prior administration of immunodepressant or corticosteroids, antianaphylaxis treatment, cytotoxic treatment in last 6 months
* Prior administration of blood products in last 4 months
* Prior administration of other research medicines in last 1 month
* Prior administration of attenuated vaccine in last 1 month
* Prior administration of inactivated vaccine in last 14 days
* Current anti-tuberculosis prophylaxis or therapy
* Any condition that in the opinion of the investigators may interfere with the evaluation of study objectives
Minimum Eligible Age

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Beijing Institute of Biotechnology

OTHER

Sponsor Role collaborator

Tianjin Cansino Biotechnology Inc

INDUSTRY

Sponsor Role collaborator

Jiangsu Province Centers for Disease Control and Prevention

NETWORK

Sponsor Role lead

Responsible Party

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Fengcai Zhu

Jiangsu Province Centers for Disease Control and Prevention

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Phase 1 vaccine clinical trial center of Jiangsu Provincial Center for Disease Control and Prevention

Taizhou, Jiangsu, China

Site Status

Countries

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China

References

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Li JX, Hou LH, Meng FY, Wu SP, Hu YM, Liang Q, Chu K, Zhang Z, Xu JJ, Tang R, Wang WJ, Liu P, Hu JL, Luo L, Jiang R, Zhu FC, Chen W. Immunity duration of a recombinant adenovirus type-5 vector-based Ebola vaccine and a homologous prime-boost immunisation in healthy adults in China: final report of a randomised, double-blind, placebo-controlled, phase 1 trial. Lancet Glob Health. 2017 Mar;5(3):e324-e334. doi: 10.1016/S2214-109X(16)30367-9. Epub 2016 Dec 23.

Reference Type DERIVED
PMID: 28017642 (View on PubMed)

Zhu FC, Hou LH, Li JX, Wu SP, Liu P, Zhang GR, Hu YM, Meng FY, Xu JJ, Tang R, Zhang JL, Wang WJ, Duan L, Chu K, Liang Q, Hu JL, Luo L, Zhu T, Wang JZ, Chen W. Safety and immunogenicity of a novel recombinant adenovirus type-5 vector-based Ebola vaccine in healthy adults in China: preliminary report of a randomised, double-blind, placebo-controlled, phase 1 trial. Lancet. 2015 Jun 6;385(9984):2272-9. doi: 10.1016/S0140-6736(15)60553-0. Epub 2015 Mar 25.

Reference Type DERIVED
PMID: 25817373 (View on PubMed)

Other Identifiers

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JSVCT020

Identifier Type: -

Identifier Source: org_study_id

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