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Herpes ZosterNCT01250561

Reduction of Postherpetic Neuralgia in Herpes Zoster

A study testing Gabapentin and Valacyclovir in people with Herpes Zoster and Post-herpetic Neuralgia, run by Center for Clinical Studies, Texas at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The addition of gabapentin therapy to standard antiviral treatment with valacyclovir in acute herpes zoster patients will decrease the incidence of post-herpetic neuralgia. Read more about this study

Who is it for?
Ages 50 years and older
Conditions the study is for
Herpes Zoster, Post-herpetic Neuralgia
What is being tested?
Gabapentin and Valacyclovir
How many people
133 participants
Where
1 siteUnited States
Study dates
Feb 2002to Oct 2007
Phase
Interventional
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 50 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male or female patients of 50 years of age and older.
  • Patients with a clinical diagnosis of uncomplicated herpes zoster presenting within the first 72 hours of vesicles.
  • Patients who are willing and able to comply with the requirements of the study.
  • Patients who are willing and able to give written informed consent.
  • Average pain score pre-therapy greater or equal than 4 on 10-point Likert scale.

Who cannot join

  • Sexually-active women of childbearing potential, including postmenopausal women less than 1 year since last menses, not employing adequate contraception (approved oral contraceptive, intrauterine device, barrier methods or total abstinence).
  • Pregnant females and nursing mothers.
  • Patients with immune dysfunction including congenital immune deficiency, active malignancy of any type, collagen vascular diseases, organ or bone marrow transplantations, known infection with HIV or severe atopic dermatitis.
  • Patients who have received cytotoxic drugs or immunosuppressive therapy (e.g., chronic systemic corticosteroids) within the previous 3 months.
  • Patients with evidence of cutaneous or visceral dissemination of herpes zoster infection (cutaneous dissemination is defined as > 20 discrete lesions outside adjacent dermatomes).
  • Patients who have received systemic anti-VZV medications or immunomodulatory medications (including interferon) within the previous 4 weeks.
Show all 12Show fewer
  • Patients currently receiving probenecid.
  • Patients with impaired renal function: calculated creatinine clearance of <30 mL/min using Cockcroft and Gault formula.
  • Patients with abnormal liver function (alanine transaminase (ALT) or aspartate;transaminase (AST) levels greater than five times the upper limit of the normal range).
  • Patients with a history of intolerance or hypersensitivity to acyclovir, penciclovir, valacyclovir, famciclovir or gabapentin.
  • Patients currently receiving therapy with gabapentin or tricyclic antidepressants.
  • Patients with clinical evidence of ocular involvement of herpes zoster. Patients with herpes zoster of the ophthalmic branch of the trigeminal nerve without evidence of ocular involvement will be included.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Center for Clinical Studies

    Houston, Texas, 77030

Other trials in United States

About this study

The addition of gabapentin therapy to standard antiviral treatment with valacyclovir in acute herpes zoster patients will decrease the incidence of post-herpetic neuralgia.

Being tested
Gabapentin, Valacyclovir
Keywords
gabapentin, valacyclovir, phn, shingles
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.

  • GabapentinDrug

    gabapentin 300mg/day, titrated up weekly to max tolerated dose or 3600mg/day (whichever is lower), for 4-9 weeks

  • ValacyclovirDrug

    valacyclovir 1000mg three-times daily x 7 days

What is being measured

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

  1. Proportion of patients with zoster pain at 6 months

Secondary outcomes (1)
  1. Proportion of patients with zoster pain at 4 months

Timeline

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

  1. First posted1 Dec 2010 (estimated)
  2. Study startFeb 2002
  3. Primary completionOct 2007
  4. Study completionOct 2007

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 N/A
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
133 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01250561
Sponsor's protocol ID
CCS-06-001
Status last verified
Nov 2010
First submitted
29 Nov 2010
Last updated
1 Dec 2010
Results posted
No
Data monitoring committee
Yes

Publications

  • Lapolla W, Digiorgio C, Haitz K, Magel G, Mendoza N, Grady J, Lu W, Tyring S. Incidence of postherpetic neuralgia after combination treatment with gabapentin and valacyclovir in patients with acute herpes zoster: open-label study. Arch Dermatol. 2011 Aug;147(8):901-7. doi: 10.1001/archdermatol.2011.81. Epub 2011 Apr 11.

    PubMed 21482862

Questions about this trial

What is this clinical trial studying?

A study testing Gabapentin and Valacyclovir in people with Herpes Zoster and Post-herpetic Neuralgia, run by Center for Clinical Studies, Texas 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 5 inclusion and 12 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: finished, as of the sponsor's last update on 1 Dec 2010. 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.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Proportion of patients with zoster pain at 6 months. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01250561, which also lists 1 linked publication.

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 1 Dec 2010.

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