This site became the new on June 19th. Learn more.
Show more Menu IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu IMPORTANT: Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu
Give us feedback

Ocular Pharmacokinetics After a Single Drop Instillation of T1225 0.5, 1, 1.5% in 91 Healthy Volunteers

This study has been completed.
Information provided by:
Laboratoires Thea Identifier:
First received: July 25, 2006
Last updated: NA
Last verified: July 2006
History: No changes posted
To evaluate azithromycin tear concentrations after instillation of one drop of one of the three T1225 concentrations (0.5%, 1% and 1.5%) and to evaluate the ocular safety.

Condition Intervention Phase
Eye Infections, Bacterial Drug: Azithromycin Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double
Primary Purpose: Treatment
Official Title: Ocular Pharmacokinetics After a Single Drop Instillation, in Each Eye of One of Three Different Concentrations of T1225 (0.5% - 1% - 1.5% Dihydrate) in 91 Healthy Volunteers

Resource links provided by NLM:

Further study details as provided by Laboratoires Thea:

Primary Outcome Measures:
  • Area Under the Curve from 0 to 24 hours (AUC0-24h)
  • Elimination half-life (t1/2)
  • Maximum Concentration (Cmax)
  • Concentration 24 hours after instillation (C24h)

Secondary Outcome Measures:
  • Tolerance

Study Start Date: May 2002
Estimated Study Completion Date: June 2002
Detailed Description:
The aim of the present study was to compare azithromycin tear ocular concentrations after a single instillation of three different T1225 concentrations in order to determine early azithromycin tear concentration and to assess the T1225 concentration, which allowed having the higher azithromycin tear concentration, 24 hours after a single instillation.

Ages Eligible for Study:   18 Years to 45 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Male/female aged from 18 to 45 years;
  • Written informed consent;
  • Healthy volunteers without any subjective ocular symptom;
  • Corrected visual acuity >= 6/10;
  • Registered in the national register of healthy volunteers

Exclusion Criteria:

  • Ocular trauma, infection or inflammation within the last 3 months;
  • Conjunctival hyperaemia (score >= 2);
  • Folliculo-papillary conjunctivitis (score >= 2);
  • Topical ocular treatment within the last month;
  • Ocular surgery, including LASIK and PRK, within the last 12 months;
  • Other ocular laser within the last 3 months;
  • Zithromax® and Azadose® within the last 3 months;
  • Medication during the study (except: paracetamol, contraceptives
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00356850

Sponsors and Collaborators
Laboratoires Thea
Principal Investigator: Claude DUBRAY, Professor Centre de Pharmacologie Clinique - Clermont-Ferrand (France)
  More Information Identifier: NCT00356850     History of Changes
Other Study ID Numbers: LT1225-PI2-03/02(F)
Study First Received: July 25, 2006
Last Updated: July 25, 2006

Additional relevant MeSH terms:
Bacterial Infections
Eye Infections
Eye Infections, Bacterial
Eye Diseases processed this record on September 21, 2017