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Treatment of Moderate to Severe Facial Acne Vulgaris

This study has been completed.
Information provided by (Responsible Party):
Warner Chilcott Identifier:
First received: January 25, 2008
Last updated: April 15, 2013
Last verified: April 2013
Randomized, multi-center, double-blind, placebo-controlled 12-week study to assess the safety and efficacy of 3 doses of an oral formulation of Doxycycline oral tablets using the Investigator's Global Assessment (IGA) score and the absolute change from baseline in inflammatory lesion count in patients with moderate to severe facial acne vulgaris. Additionally, the absolute change from baseline in non-inflammatory and total lesions of the active study medication to placebo will be evaluated.

Condition Intervention Phase
Acne Vulgaris
Drug: Doxycycline 0.6 mg/kg/day
Drug: Doxycycline 1.2 mg/kg/day
Drug: Doxycycline 2.4 mg/kg/day
Drug: Placebo
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Phase 2 Study Randomized, Double-blind Study to Evaluate the Safety and Efficacy of 3 Doses of Doxycycline as Compared to Placebo in the Treatment of Moderate to Severe Facial Acne Vulgaris

Resource links provided by NLM:

Further study details as provided by Warner Chilcott:

Primary Outcome Measures:
  • Percentage Patients With Successful Outcome Investigator's Global Assessment (IGA) Score at Week 12, Intent to Treat (ITT) Population [ Time Frame: Week 12 ]
    IGA: 0/clear (clear skin no lesions, inflammatory or non-inflammatory), 1/almost clear (rare non-inflammatory lesion w/no more than 1 small inflammatory lesion), 2/mild (some non-inflammatory lesions with no more than a few inflammatory lesions, papules/pustules only, no nodular lesions), 3/moderate (up to many non-inflammatory lesions, some inflammatory lesions, no more than 1 small nodular lesion), 4/severe (many non-inflammatory & inflammatory lesions, no more than a few nodular lesions. Lower score improvement in score. Success=IGA decrease of at least 2 grades from baseline score.

  • Absolute Change in Inflammatory Lesion Count From Baseline to Week 12, ITT Population [ Time Frame: Baseline to Week 12 ]
    Change derived as Baseline evaluation minus the Week 12 evaluation. Thus a positive change reflects a reduction in lesion count. Inflammatory Lesion Count includes nodules, papules and pustules.

Secondary Outcome Measures:
  • Absolute Change From Baseline to Week 12 in NonInflammatory Lesion Count, ITT Population [ Time Frame: Baseline to Week 12 ]
    Noninflammatory Lesion Count includes open and closed comedones.

  • Absolute Change From Baseline to Week 12 in Total Lesion Count, ITT Population [ Time Frame: Baseline to Week 12 ]
    Total Lesion Count is the sum of inflammatory and noninflammatory lesions.

Enrollment: 257
Study Start Date: February 2008
Study Completion Date: December 2008
Primary Completion Date: November 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Doxycyline 0.6 mg/kg/day
Doxycycline dosed at 40 mg/day to subjects of appropriate weights
Drug: Doxycycline 0.6 mg/kg/day
doxycycline 40 mg/day, oral, 12 weeks
Experimental: Doxycycline 1.2 mg/kg/day
Doxycycline dosed at 80 mg/day to subjects of appropriate weights
Drug: Doxycycline 1.2 mg/kg/day
doxycycline 80 mg/day, 12 weeks
Experimental: Doxycycline 2.4 mg/kg/day
Doxycycline dosed at 160 mg/day to subjects of appropriate weights
Drug: Doxycycline 2.4 mg/kg/day
doxycycline 160 mg/day, 12 weeks
Placebo Comparator: Placebo Drug: Placebo
Placebo, 12 weeks


Ages Eligible for Study:   12 Years to 45 Years   (Child, Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Must be between 12 and 45 years of age.
  • Has a diagnosis of moderate to severe facial acne vulgaris with no more than two nodules on the face

Exclusion Criteria:

  • Is allergic to tetracycline-class antibiotics or to any ingredient in the study medication.
  • Has a history of pseudomembranous colitis or antibiotic-associated colitis.
  • Has a history of hepatitis or liver damage or renal impairment.
  Contacts and Locations
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Please refer to this study by its identifier: NCT00612573

  Show 23 Study Locations
Sponsors and Collaborators
Warner Chilcott
Study Director: Angelo Secci, MD Warner Chilcott
  More Information

Responsible Party: Warner Chilcott Identifier: NCT00612573     History of Changes
Other Study ID Numbers: PR-07907
Study First Received: January 25, 2008
Results First Received: February 14, 2011
Last Updated: April 15, 2013

Additional relevant MeSH terms:
Acne Vulgaris
Acneiform Eruptions
Skin Diseases
Sebaceous Gland Diseases
Anti-Bacterial Agents
Anti-Infective Agents
Antiprotozoal Agents
Antiparasitic Agents processed this record on April 27, 2017