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Trial · NCT00287469

A Safety and Efficacy Study of the Hepatitis E Vaccine in Nepal.

NCT00287469, Phase 2, Completed, U.S. Army Medical Research and Development Command; results first posted 2019-05-29

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. A Safety and Efficacy Study of the Hepatitis E Vaccine in Nepal. Trials, record NCT00287469. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT00287469

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
A Safety and Efficacy Study of the Hepatitis E Vaccine in Nepal.
NCT number
NCT00287469
Status
Completed
Phases
Phase 2
Enrollment
2,000 participants, actual
Lead sponsor
U.S. Army Medical Research and Development Command
Conditions
Hepatitis
Interventions
Hepatitis E vaccine, recombinant (Sar 56 kDa), Placebo
First posted
2006-02-06
Last updated
2019-05-29
Results first posted
2019-05-29

Source ClinicalTrials.gov

Registered outcomes3

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryPercent of Participants of Definite Hepatitis E by Category and Immunological Markers (Anti HEV) During the Follow-up Period14 days after dose 3 at 6 months
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
SecondaryPercent of Participants of Definite Hepatitis E Disease by Category During the Follow-up Period14 days after dose 2 until 14 days after dose 3
Percent of participants of definite hepatitis E and vaccine efficacy by category 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
SecondaryNumber of Suspected, Definite, Probable and Not Confirmed Hepatitis E Disease Casesbefore dose 1 thru 14 days after dose 3Number of suspected, definite, probable and not confirmed hepatitis E disease cases during surveillance period

Outcomes3

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYPercent of Participants of Definite Hepatitis E by Category and Immunological Markers (Anti HEV) During the Follow-up Period14 days after dose 3 at 6 monthsPercent of ParticipantsNUMBER
SECONDARYPercent of Participants of Definite Hepatitis E Disease by Category During the Follow-up Period14 days after dose 2 until 14 days after dose 3Percent of ParticipantsNUMBER
SECONDARYNumber of Suspected, Definite, Probable and Not Confirmed Hepatitis E Disease Casesbefore dose 1 thru 14 days after dose 3Number of Hepatitis E CasesNUMBER

Results by group76

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Percent of Participants of Definite Hepatitis E by Category and Immunological Markers (Anti HEV) During the Follow-up Period20mcg Recombinant HEVJaundice; IgM ≥ 100 WR U/mL0.095% Confidence Interval 0.0 to 0.4Percent of Participants
Percent of Participants of Definite Hepatitis E by Category and Immunological Markers (Anti HEV) During the Follow-up PeriodPlaceboJaundice; IgM ≥ 100 WR U/mL6.995% Confidence Interval 5.3 to 8.8Percent of Participants
Percent of Participants of Definite Hepatitis E by Category and Immunological Markers (Anti HEV) During the Follow-up Period20mcg Recombinant HEVJaundice; total lg ≥ 2500 WR U/mL0.395% Confidence Interval 0.1 to 1.0Percent of Participants
Percent of Participants of Definite Hepatitis E by Category and Immunological Markers (Anti HEV) During the Follow-up PeriodPlaceboJaundice; total lg ≥ 2500 WR U/mL0.195% Confidence Interval 0.0 to 0.6Percent of Participants
Percent of Participants of Definite Hepatitis E by Category and Immunological Markers (Anti HEV) During the Follow-up Period20mcg Recombinant HEVJaundice; IgM≥100 WR U/mL or total lg≥2500 WR U/mL0.395% Confidence Interval 0.1 to 1.0Percent of Participants
Percent of Participants of Definite Hepatitis E by Category and Immunological Markers (Anti HEV) During the Follow-up PeriodPlaceboJaundice; IgM≥100 WR U/mL or total lg≥2500 WR U/mL7.095% Confidence Interval 5.4 to 8.9Percent of Participants
Percent of Participants of Definite Hepatitis E by Category and Immunological Markers (Anti HEV) During the Follow-up Period20mcg Recombinant HEVIllness; IgM ≥ 100 WR U/mL0.095% Confidence Interval 0.0 to 0.4Percent of Participants
Percent of Participants of Definite Hepatitis E by Category and Immunological Markers (Anti HEV) During the Follow-up PeriodPlaceboIllness; IgM ≥ 100 WR U/mL0.395% Confidence Interval 0.1 to 1.0Percent of Participants
Percent of Participants of Definite Hepatitis E by Category and Immunological Markers (Anti HEV) During the Follow-up Period20mcg Recombinant HEVIllness; total lg ≥ 2500 WR U/mL0.095% Confidence Interval 0.0 to 0.4Percent of Participants
Percent of Participants of Definite Hepatitis E by Category and Immunological Markers (Anti HEV) During the Follow-up PeriodPlaceboIllness; total lg ≥ 2500 WR U/mL0.095% Confidence Interval 0.0 to 0.4Percent of Participants

Participant flow6

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDPlacebo1,000
Overall StudySTARTED20mcg Recombinant HEV1,000
Overall StudyCOMPLETEDPlacebo780
Overall StudyCOMPLETED20mcg Recombinant HEV786
Overall StudyNOT COMPLETEDPlacebo220
Overall StudyNOT COMPLETED20mcg Recombinant HEV214

Adverse events546

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherEosinophiliaBlood and lymphatic system disordersPlacebo01,0000
otherEosinophiliaBlood and lymphatic system disorders20mcg Recombinant HEV21,0002
otherHydroceleCongenital, familial and genetic disordersPlacebo01,0000
otherHydroceleCongenital, familial and genetic disorders20mcg Recombinant HEV21,0002
otherCerumen impactionEar and labyrinth disordersPlacebo11,0001
otherCerumen impactionEar and labyrinth disorders20mcg Recombinant HEV01,0000
otherEar painEar and labyrinth disordersPlacebo11,0001
otherEar painEar and labyrinth disorders20mcg Recombinant HEV01,0000
otherVertigoEar and labyrinth disordersPlacebo21,0002
otherVertigoEar and labyrinth disorders20mcg Recombinant HEV01,0000

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityPlacebo11,000
Total, all-cause mortality20mcg Recombinant HEV61,000
Total, other adverse eventsPlacebo2261,000
Total, other adverse events20mcg Recombinant HEV2291,000
Total, serious adverse eventsPlacebo2001,000
Total, serious adverse events20mcg Recombinant HEV1431,000

Papers6

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
8146130BACKGROUNDPubMed
12048035BACKGROUNDPubMed
12602109BACKGROUNDPubMed
15233590BACKGROUNDPubMed
15575050BACKGROUNDPubMed
17329696DERIVEDPubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons2

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

ComparisonSource
20mcg Recombinant HEV vs Placebo: deaths from any causeTrial comparisons
20mcg Recombinant HEV vs Placebo: serious adverse eventsTrial comparisons

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT00287469

GET https://conductscience.org/api/trials/v1/NCT00287469/results?page=2