# A Comparative Study of the Efficacy of Penciclovir 10mg/g (1%) Cream in Preventing the Appearance of Classical Lesion in Recurrent Cold Sore Sufferers

> **NCT00820534** · PHASE4 · COMPLETED · sponsor: **Novartis** · enrollment: 126 (actual)

## Conditions studied

- Cold Sore

## Interventions

- **DRUG:** Penciclovir
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT00820534
- **Lead sponsor:** Novartis
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2008-12
- **Primary completion:** 2009-11
- **Final completion:** 2009-11
- **Target enrollment:** 126 (ACTUAL)
- **Last updated:** 2012-04-20


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00820534

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00820534, "A Comparative Study of the Efficacy of Penciclovir 10mg/g (1%) Cream in Preventing the Appearance of Classical Lesion in Recurrent Cold Sore Sufferers". Retrieved via AI Analytics 2026-05-25 from https://api.ai-analytics.org/clinical/NCT00820534. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*