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Barraquer has always been a pioneer in the research of new surgical techniques and in the development of new drugs that help restore the eyesight and cure multiple eye conditions.

Clinical trials are studies devised to research new medication or techniques. They aim to bring improvements to the treatment of diseases or treat conditions that currently do not have a cure. They offer the possibility of accessing new treatment free of charge for the patient and for up to three years.

Barraquer has always been dedicated to research and innovation in the field of ophthalmology.

In each clinical trial, the patient must meet certain selection criteria. Not all patients are candidates to participate in a clinical trial. The ophthalmologist will evaluate the suitability of each candidate.

All the clinical studies conducted at the Barraquer Centre have been approved by a Drug Research Ethics Committee (CEIm), a multidisciplinary body independent from the Centre. Clinical trials are conducted based on strict ethical and scientific principles and in compliance with national and international regulations that protect the rights, safety and well-being of the individuals who participate in them.

Phases of a clinical trial

The development phases of a clinical trial are:

  • Phase 1 > The safety of a drug is assessed on a small number of healthy individuals without the pathology.
  • Phase 2 > The drug is studied on a high number of individuals affected by the condition for an initial analysis of its safety and efficacy.
  • Phase 3 > The effects of the drug are studied on a higher number of patients –which may include thousands– with the pathology aiming to be treated. It tests the safety and efficacy of the drug before its commercialisation.
  • Phase 4 or post marketing surveillance trials > The drug has been approved for sale. Long-term studies are conducted on the safety and efficacy of individuals affected by the condition. This allows for any low incidences of adverse reactions to be detected.

Fases de un ensayo clínico

Clinical trials at phases 2, 3 and 4 are currently being conducted the Barraquer Ophthalmology Centre.

Duration and cost

Each clinical trial has its own specific duration outlined by the protocol. Some may last a few days or weeks while others may be up to three years long.

The patients selected do not have to pay for the treatment or the follow-up tests, meaning they are completely free of charge. In addition, in many cases, depending on the clinical trial sponsor, transport is also covered.

Open-label clinical trials


  • ATHENA -> Open angle glaucoma or hypertension
    Patients with a diagnosis of open angle glaucoma (which may be, for example, primary pseudoexfoliative glaucoma or pigmentary glaucoma) or ocular hypertension in both eyes, that requires bilateral treatment to reduce intraocular pressure (the diagnosis doesn't have to be the same in both eyes) or ocular hypertension that requires drugs to reduce the intraocular pressure in both eyes.
    Complete study information (PDF, Spanish)


How do I take part in a clinical trial?

To take part in a trial, you should follow these steps:

  1. Fill out the application form at the bottom of this page.
  2. The clinical trial coordinator will contact you for more information and to arrange an appointment with one of our ophthalmologists.
  3. After your visit to the ophthalmologist, if you are a potential candidate then the project will be explained to you in more depth.
  4. After a period of time to think about your participation, you must inform the clinical trials department of your decision. If you wish to go ahead, you will be given an appointment to start the collaboration based on the established protocol.