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HTNV/PUUV DNA vaccine

Phase 2

Hemorrhagic Fever With Renal Syndrome | Monoclonal antibody | Nephrology |United Therapeutics Corporation|Last Updated: Feb 12, 2021

Success Probability

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Trial Design

RandomizedDouble-BlindCONTROLLEDBiomarker
Total Trials1
Total Enrollment130

FDA Designations

No designations recorded

Clinical trial landscape

HTNV/PUUV DNA vaccine · 1 trial · 1 indication

Phase 2 1
NCT02116205Phase 2a Immunogenicity Study of Hantaan/Puumala Virus DNA Vaccine for Prevention of Hemorrhagic FeverHemorrhagic Fever With Renal Syndrome
COMPLETED130 Analytics
PHASE2COMPLETED
Phase 2a Immunogenicity Study of Hantaan/Puumala Virus DNA Vaccine for Prevention of Hemorrhagic Fever
Hemorrhagic Fever With Renal SyndromeUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants With Seroconversion of HTNV and PUUV Using PsVNA50
Study Days 0 to 365

The primary endpoint will be to determine the seroconversion rates of the vaccines. Seroconversion is defined as production of neutralizing antibody titers measured using a pseudovirion neutralization assay (PsVNA). A PsVNA50 titer ≥ 20 is considered positive. Sera were collected on Days 0, 28, 56, 84, 140, 168, 196, 252, 365 and evaluated for the presence of neutralizing antibodies using PsVNA50. Percentages for seroconversion are based on the number of subjects presenting non-missing data.

Secondary Endpoints

Number of Solicited Adverse Events (AEs) in Study Subjects
The time of each injection through 14 days following the procedure
Number of Participants With Seroconversion of HTNV and PUUV Using PsVNA80
Study Days 0 to 365
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
Vaccine + Placebo at 1.0 mgEXPERIMENTAL1.0 mg HTNV/PUUV DNA vaccine IM-EP via TriGrid™ Delivery System (TDS) on Study Day 0, 56 and 168. 1.0 mg placebo administration on Study Day 28.
Vaccine at 1.0 mgEXPERIMENTAL1.0 mg HTNV/PUUV DNA vaccine IM-EP via TriGrid™ Delivery System (TDS) on Study Day 0, 28, 56 and 168.
Vaccine + Placebo at 2.0 mgEXPERIMENTAL2.0 mg HTNV/PUUV DNA vaccine IM-EP via TriGrid™ Delivery System (TDS) on Study Day 0, 56 and 168. 2.0 mg placebo administration on Study Day 28.
Vaccine at 2.0 mgEXPERIMENTAL2.0 mg HTNV/PUUV DNA vaccine IM-EP via TriGrid™ Delivery System (TDS) on Study Day 0, 28, 56 and 168.

Interventions

NameTypeDescription
HTNV/PUUV DNA vaccineBIOLOGICALHTNV/PUUV DNA vaccine mixture, composed of pWRG/HTN-M(co) and pWRG/PUU-M(s2)
PlaceboBIOLOGICAL0.9% sodium chloride
TriGrid Delivery System (TDS)DEVICEThe TDS-IM is an integrated, fully automated clinical EP system designed for delivering DNA-based vaccines and therapies to target tissues, through temporary disruption of cellular membranes via electrical pulses
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Eligibility Criteria

Age Range18 Years to 49 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Healthy adult male or non-pregnant, non-lactating female, ages 18-49 (inclusive) at the time of screening * Have provided written informed consent before screening * Free of clinically significant health problems, as determined by pertinent medical history and clinical examina...

Countries:United States
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Frequently asked questions about HTNV/PUUV DNA vaccine

What is HTNV/PUUV DNA vaccine used for?

HTNV/PUUV DNA vaccine is an investigational vaccine being studied for the prevention of Hemorrhagic Fever With Renal Syndrome, a condition caused by Hantaan and Puumala viruses. It is designed to generate an immune response against these viruses. The vaccine is currently in clinical development and has not been approved by regulatory authorities.

Who makes HTNV/PUUV DNA vaccine?

HTNV/PUUV DNA vaccine is being developed by United Therapeutics Corporation, a publicly traded company listed on NASDAQ under the ticker symbol UTHR. The company is conducting clinical trials to evaluate the vaccine's safety and immunogenicity for the prevention of Hemorrhagic Fever With Renal Syndrome.

What phase is HTNV/PUUV DNA vaccine in?

HTNV/PUUV DNA vaccine is in Phase 2 clinical development. A Phase 2a study has been completed, which evaluated the vaccine's immunogenicity for the prevention of Hemorrhagic Fever With Renal Syndrome. The vaccine remains investigational and has not received regulatory approval for commercial use.

What clinical trials is HTNV/PUUV DNA vaccine in?

HTNV/PUUV DNA vaccine has been studied in one completed clinical trial, identified as NCT02116205. This was a Phase 2a immunogenicity study conducted in the United States with 130 participants, including healthy volunteers aged 18 years and older. The trial was randomized, double-blind, and controlled, with biomarker selection.

Is HTNV/PUUV DNA vaccine the same as a Hantaan/Puumala virus vaccine?

Yes, HTNV/PUUV DNA vaccine is a DNA vaccine targeting Hantaan and Puumala viruses, which cause Hemorrhagic Fever With Renal Syndrome. The vaccine is designed to elicit an immune response against these viruses. It is being developed by United Therapeutics Corporation and has completed a Phase 2a clinical trial.