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A Phase 3, Randomized, Double Blind, Multinational Trial of Intravenous Telavancin Versus Vancomycin for Treatment of Complicated Gram positive Skin and Skin Structure Infections with a Focus on Patients with Infections Due to Methicillin resistant Staphylococcus aureus (ATLAS I)

A Phase 3, Randomized, Double Blind, Multinational Trial of Intravenous Telavancin Versus Vancomycin for Treatment of Complicated Gram positive Skin and Skin Structure Infections with a Focus on Patients with Infections Due to Methicillin resistant Staphylococcus aureus (ATLAS I)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12605000323628
Acronym
ATLAS I
Enrollment
862
Registered
2005-09-06
Start date
2005-01-19
Completion date
2006-05-15
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

A large multinational, double-blind, randomized Phase III clinical study designed to compare the efficacy and safety of telavancin (10mg/kg IV once daily) versus vancomycin (1gm IV q12 hr) in adult patients with complicated skin and skin structure infections (cSSSI) caused by Gram-positive bacteria. The primary objective of the study was to compare the efficacy and safety of telavancin to vancomycin in the treatment of adults with complicated Gram positive skin and skin structure infections with an emphasis on patients with infections due to methicillin resistant Staphylococcus aureus (MRSA). A key secondary objective of this study was to pool the data from this study with data from a second study of identical design (Study 0018) and to assess the superiority of telavancin to vancomycin in patients with MRSA infections. Patients were assessed for clinical response by assessing a patient’s signs and symptoms at the specified evaluation compared to their Baseline evaluation. A cure consisted of resolution of signs and symptoms associated with the skin infection present at study admission such that no further antibiotic therapy was necessary. Not cured meant there was an inadequate response to study therapy and Indeterminate meant the outcome was not able to be determined.

Interventions

Telavancin 10 mg/kg IV for 7 to 14 days

Sponsors

Theravance, Inc
Lead SponsorCommercial sector/Industry

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used)

Eligibility

Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Diagnosis of complicated skin and skin structure infections with MRSA either suspected or confirmed as the major cause of the infection:Require at least 7 days of IV antibiotic treatment.

Exclusion criteria

More than 24 hours of prior therapy or is a treatment failure. Pregnancy.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026