A Safety and Efficacy Study of the Hepatitis E Vaccine in Nepal.
A Phase II, Prospective, Randomized, Double-blind, Placebo Controlled, Field Efficacy Trial of a Candidate Hepatitis E Vaccine in Nepal.
4 other identifiers
interventional
2,000
1 country
1
Brief Summary
The purpose of this study is to determine if a hepatitis E vaccine is safe and able to prevent symptomatic liver disease due to the hepatitis E virus.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started Jul 2001
Typical duration for phase_2
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
July 9, 2001
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 19, 2004
CompletedStudy Completion
Last participant's last visit for all outcomes
January 1, 2005
CompletedFirst Submitted
Initial submission to the registry
February 2, 2006
CompletedFirst Posted
Study publicly available on registry
February 6, 2006
CompletedResults Posted
Study results publicly available
May 29, 2019
CompletedMay 29, 2019
May 1, 2019
2.5 years
February 2, 2006
October 9, 2018
May 8, 2019
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Percent of Participants of Definite Hepatitis E by Category and Immunological Markers (Anti HEV) During the Follow-up Period
Percent of participants of definite hepatitis E by category and immunological markers (anti HEV) during the follow-up period. * Illness for at least 3 days comprised of at least 3 of the following symptoms: fatigue, loss of appetite, abdominal discomfort, right upper quadrant pain, nausea, vomiting * Peak of Alanine Aminotransferase (ALT) greater then 2.5 times the upper limit of normal (2.5 x 42 =105) * Percent of Participants = n x 100 / N
14 days after dose 3 at 6 months
Secondary Outcomes (2)
Percent of Participants of Definite Hepatitis E Disease by Category During the Follow-up Period
14 days after dose 2 until 14 days after dose 3
Number of Suspected, Definite, Probable and Not Confirmed Hepatitis E Disease Cases
before dose 1 thru 14 days after dose 3
Study Arms (2)
20mcg Recombinant HEV
EXPERIMENTAL20mcg of recombinant HEV antigen administered intramuscularly in the deltoid according to a 0, 1 and 6 month schedule
Placebo
PLACEBO COMPARATORPBS buffer placebo containing alum was administered intramuscularly in the deltoid according to a 0, 1 and 6 month schedule.
Interventions
20mcg or rhE Sar 56 kDa/dose of 0.5 mL, aluminium hydroxide (0.5 mg/dose) and phenoxyethanol (2.5 mg/dose)
Eligibility Criteria
You may qualify if:
- A male or female 18 years of age or older at the time of the first vaccination.
- Written or oral witnessed (if the subject was illiterate) informed consent obtained from the subject
- Free of obvious health problems as established by medical history before entering into the study
- If the subject was female, she must have a negative serum pregnancy test within 48 hours prior to each vaccination and must agree to avoid becoming pregnant during the course of vaccination and until 30 days after the last dose of vaccine.
You may not qualify if:
- Use of any investigational or non-registered drug or vaccine other than the study vaccine(s) within 30 days preceding the first dose of study vaccine, or planned use during the study period.
- Administration of chronic (defined as more than 14 days) immunosuppressants or other immune modifying drugs within six months of vaccination. For corticosteroids, this will mean prednisone, or equivalent, \* 0.5 mg/kg/day. Inhaled and topical steroids are allowed.
- Any chronic drug therapy to be continued during the study period with the exception of contraceptive agents, homeopathic remedies, vitamins, minerals and any other dietary supplements or other drug therapy at the discretion of the investigator.
- Planned administration/administration of a vaccine not foreseen by the study protocol within 30 days of the first dose of study vaccine, excluding tetanus toxoid or rabies vaccine.
- Any confirmed or suspected immunosuppressive or immunodeficient condition, including human immunodeficiency virus (HIV) infection, as reported by the volunteer (testing for HIV will not be performed).
- History of allergic disease or reactions likely to be exacerbated by any component of the vaccine.
- Major congenital defects or serious chronic illness.
- History of any neurologic disorders or seizures.
- Acute disease at the time of enrollment. Acute disease was defined as the presence of a moderate or severe illness with or without fever. All vaccines could be administered to persons with a minor illness such as diarrhea, mild upper respiratory infection with or without low-grade febrile illness, i.e., oral temperature \< 38.0°C (100.4°F).
- Acute or chronic, clinically significant pulmonary, cardiovascular, hepatic or renal functional abnormality, as determined by history.
- Administration of immunoglobulins and/or any blood products within the three months preceding the first dose of study vaccine or planned administration during the study period.
- Pregnant female.
- History of chronic alcohol consumption (defined as the consumption of the equivalent of 4 or more 12 ounce beers 4 or more times a week) and/or intravenous drug abuse.
- Antibodies to rHEV (\* 20 WR U/mL).
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Shree Birendra Hospital
Kathmandu, Nepal
Related Publications (6)
Worm HC, Schlauder GG, Brandstatter G. Hepatitis E and its emergence in non-endemic areas. Wien Klin Wochenschr. 2002 Aug 30;114(15-16):663-70.
PMID: 12602109BACKGROUNDWorm HC, van der Poel WH, Brandstatter G. Hepatitis E: an overview. Microbes Infect. 2002 May;4(6):657-66. doi: 10.1016/s1286-4579(02)01584-8.
PMID: 12048035BACKGROUNDEmerson SU, Purcell RH. Running like water--the omnipresence of hepatitis E. N Engl J Med. 2004 Dec 2;351(23):2367-8. doi: 10.1056/NEJMp048285. No abstract available.
PMID: 15575050BACKGROUNDPurcell RH. Hepatitis viruses: changing patterns of human disease. Proc Natl Acad Sci U S A. 1994 Mar 29;91(7):2401-6. doi: 10.1073/pnas.91.7.2401.
PMID: 8146130BACKGROUNDWorm HC, Wirnsberger G. Hepatitis E vaccines: progress and prospects. Drugs. 2004;64(14):1517-31. doi: 10.2165/00003495-200464140-00002.
PMID: 15233590BACKGROUNDShrestha MP, Scott RM, Joshi DM, Mammen MP Jr, Thapa GB, Thapa N, Myint KS, Fourneau M, Kuschner RA, Shrestha SK, David MP, Seriwatana J, Vaughn DW, Safary A, Endy TP, Innis BL. Safety and efficacy of a recombinant hepatitis E vaccine. N Engl J Med. 2007 Mar 1;356(9):895-903. doi: 10.1056/NEJMoa061847.
PMID: 17329696DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Mrigendra P. Shrestha MD
- Organization
- Armed Forces Research Institute of Medical Services
Study Officials
- PRINCIPAL INVESTIGATOR
Mrigendra P Shrestha, MD
Armed Forces Research Institute of Medical Sciences, Thailand
- PRINCIPAL INVESTIGATOR
Robert M Scott, MD
Walter Reed Army Institute of Research (WRAIR)
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- FED
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
February 2, 2006
First Posted
February 6, 2006
Study Start
July 9, 2001
Primary Completion
January 19, 2004
Study Completion
January 1, 2005
Last Updated
May 29, 2019
Results First Posted
May 29, 2019
Record last verified: 2019-05