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ShinglesPhase 3NCT02412917

A Comparative Study of FV-100 vs. Valacyclovir for the Prevention of Post-Herpetic Neuralgia

A Phase 3 study testing FV-100 and valacyclovir in people with Shingles and Herpes Zoster, run by ContraVir Pharmaceuticals, Inc. at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This is a multicenter, randomized, double-blind, parallel-group, active controlled comparative study of the safety and efficacy of 2 dosing regimens of FV-100 versus valacyclovir administered for 7 days in subjects with uncomplicated AHZ(acute herpes zoster). Read more about this study

Who is it for?
Ages 30 years and older
Conditions the study is for
Shingles, Herpes Zoster, Postherpetic Neuralgia
What is being tested?
FV-100 and valacyclovir
Could I receive a placebo?
No, everyone receives an active treatment
How many people
237 participants
Where
1 siteUnited States
Study dates
Jun 2015to Nov 2017
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 30 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Receive a clinical diagnosis of uncomplicated AHZ as evidenced by a unilateral dermatomal rash
  • Have zoster-related pain
  • Are able to be randomized and receive their first dose within approximately 120 hours from appearance of rash

Who cannot join

  • Have multidermal or disseminated AHZ
  • Have facial, ophthalmologic or oral manifestations
  • Have received Zostavax

Trial locations and contacts

1 site in 1 country.

United States1 site
  • TX

    Webster, Texas, 77598

Other trials in United States

About this study

Official title: A Multicenter, Randomized, Double-Blind, Parallel-Group, Comparative Study of FV-100 vs. Valacyclovir for the Prevention of Post-Herpetic Neuralgia and Treatment of Acute Herpes Zoster Associated Pain

This is a multicenter, randomized, double-blind, parallel-group, active controlled comparative study of the safety and efficacy of 2 dosing regimens of FV-100 versus valacyclovir administered for 7 days in subjects with uncomplicated AHZ(acute herpes zoster).

Read the detailed description

This is a multicenter, randomized, double-blind, parallel-group, active controlled comparative study of the safety and efficacy of 2 dosing regimens of FV-100 versus valacyclovir administered for 7 days in subjects with uncomplicated AHZ(acute herpes zoster). Subjects diagnosed with uncomplicated AHZ within 72 hours of lesion appearance and worst pain of 4 or greater at day 1, will be randomized (1:1:1) to one of three treatment groups and will begin study treatment at the Day 1 visit(within 72 hours of AHZ lesion appearance) to either: 1. FV-100 400mg QD, 2. FV-100 400mg BID(total daily dose of 800mg), or 3. Valacyclovir 1000mg 3 times a day for a total daily dose of 3000mg. Subjects will be monitored for adverse events through day 21. Efficacy assessments for lesion status and AHZ pain are captured til day 120.

Being tested
FV-100, valacyclovir
Medical subject headings
Herpes Zoster, Neuralgia, Postherpetic

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • FV-100Drug

    Also called antiviral nucleoside analog

    antiviral nucleoside analog

  • valacyclovirDrug

    Also called valtrex

    antiviral nucleoside analog

Study groups in NCT02412917
Study groupRoleWhat they receive
FV-100 400 mg QDExperimentalFV-100 400mg QD
Receives: Drug: FV-100
FV-100 400mg BIDExperimentalFV-100 400mg BID(total daily dose of 800mg)
Receives: Drug: FV-100
valacyclovirActive comparatorvalacyclovir 1000mg TID
Receives: Drug: valacyclovir

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The incidence of post-herpetic neuralgia(PHN) following treatment with 2 dose regimens of FV-100 compared to valacyclovir.

    efficacy measure

    Measured: Day 1 to Day 120

Secondary outcomes (4)
  1. Acute herpes zoster associated pain, as measured by Zoster Brief Pain Inventory(ZBPI)

    efficacy measure

    Measured: Day 1 to Day 120

  2. The effect on lesion formation and healing of 2 dose regimens of FV-100 compared to valacyclovir

    efficacy measure

    Measured: Day 1 to Day 120

  3. The number and classification of adverse events in 2 dosing regimens of FV-100

    Safety measure

    Measured: Day 1 to Day 120

  4. The pharmacokinetic profile of the active metabolite of FV-100 after 7 days of dosing at 400mg QD versus compared with 400mg BID

    Pharmacokinetic

    Measured: Day 1 to Day 120

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Apr 2015 (estimated)
  2. Study startJun 2015
  3. Primary completionNov 2017
  4. Study completionNov 2017

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
237 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02412917
Sponsor's protocol ID
CTRV-FV-2-007
Status last verified
Dec 2017
First submitted
23 Mar 2015
Last updated
22 Dec 2017
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing FV-100 and valacyclovir in people with Shingles and Herpes Zoster, run by ContraVir Pharmaceuticals, Inc. at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 22 Dec 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early. Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The incidence of post-herpetic neuralgia(PHN) following treatment with 2 dose regimens of FV-100 compared to valacyclovir. (time frame: Day 1 to Day 120). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Dec 2017; AzTrials last refreshed its copy on 31 Oct 2026.

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