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Dorzolamide/Brimonidine/Timolol Impact on Ocular Surface, Glaucoma Progression & Chatbot Follow-up: GLAUCO-TECH (GLAUCO-TECH)

5. juli 2026 oppdatert av: Tecnoquimicas

GLAUCO-TECH Study: Safety & Efficacy of Preservative-free vs. Preserved Dorzolamide-Timolol-Brimonidine. Impact on the Ocular Surface, Glaucoma Progression, Tear Proteomics, and AI/Chatbot-led Patient Follow-up.

The primary objective of this study is to evaluate the ocular surface safety of an ophthalmic solution indicated for the management of glaucoma, containing the active ingredients dorzolamide, timolol, and brimonidine, in patients diagnosed with primary open-angle glaucoma. The most relevant questions to be answered by this study are:

In patients with ocular hypertension or open-angle glaucoma, does treatment with the preservative-free dorzolamide-timolol-brimonidine combination improve ocular surface health?

Will there be differences in treatment adherence between patients with ocular hypertension or open-angle glaucoma using a preservative-free dorzolamide-timolol-brimonidine combination versus a combination with preservatives?

Will there be differences in therapeutic efficacy between patients with ocular hypertension or open-angle glaucoma when using a preservative-free dorzolamide-timolol-brimonidine combination versus a preservative-containing dorzolamide-timolol-brimonidine combination?

Will there be differences in changes in biomolecular markers on the ocular surface between patients with ocular hypertension or open-angle glaucoma when using a preservative-free dorzolamide-timolol-brimonidine combination versus a preservative-containing dorzolamide-timolol-brimonidine combination?

Researchers will study these differences by comparing a formulation with the dorzolamide, timolol, and brimonidine combination that uses a preservative versus another with the same combination that does not use preservatives. Preservatives are used in ophthalmic solutions to prevent bacterial contamination. New technological developments in bottles allow for solutions without the need for preservatives. Participants must:

  • Take their medication according to the investigator's instructions for at least 4 months
  • Attend follow-up appointments at the beginning, and every 2 months until 4 months have passed
  • Answer phone calls every 15 days
  • Complete the quality of life questionnaires within the timeframes defined by the investigator

Studieoversikt

Status

Aktiv, ikke rekrutterende

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

A prospective, randomized, comparative, single-blind (masked evaluator) clinical trial will evaluate the preservative-free fixed-dose combination of dorzolamide, timolol, and brimonidine versus the same combination with preservatives in patients diagnosed with primary open-angle glaucoma or ocular hypertension treated in Cali, Colombia.

Adult patients with a clinical indication for topical triple hypotensive therapy, currently receiving treatment with the preservative formulation or in the process of initiating or changing treatment, will be included. Participants will be assigned to one of the two treatment groups and will be followed longitudinally under real-world clinical practice conditions, with standardized measurements.

The primary objective of the study is to compare the impact of both formulations on ocular surface health, integrating objective and subjective measures of dry eye. Secondary objectives include evaluating intraocular pressure control, ocular and systemic safety and tolerability, treatment adherence, vision-related quality of life, and signs of structural and functional glaucomatous progression. In addition, the study incorporates two substudies. The technology substudy will evaluate the effect of an educational chatbot and reminders on patient adherence, disease knowledge, and self-efficacy. The molecular substudy will explore the proteomic profile of the tear film and its variation in response to treatment, in order to identify molecular markers associated with tolerability, ocular surface inflammation, and clinical response.

Studietype

Intervensjonell

Registrering (Antatt)

140

Fase

  • Fase 4

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

    • Valle del Cauca Department
      • Cali, Valle del Cauca Department, Colombia, 760044
        • Clínica Sigma Cali

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen
  • Eldre voksen

Tar imot friske frivillige

Nei

Beskrivelse

Inclusion Criteria: Age 18 years or older.

  • Diagnosis of primary open-angle glaucoma or ocular hypertension, confirmed by the treating ophthalmologist.
  • Continuous and stable treatment with a topical fixed-dose combination of dorzolamide, timolol, and brimonidine in a preservative formulation, for a minimum of 3 months and a maximum of 12 months prior to study enrollment.
  • No prior use of preservative-free formulations of dorzolamide, timolol, and brimonidine.
  • Exclusive use of the fixed-dose combination of dorzolamide, timolol, and brimonidine, without other concomitant ocular hypotensive agents.
  • Ability to attend all study visits and procedures.
  • Signed written informed consent.

Exclusion Criteria: Patients with any of the following conditions will be excluded:

  • History of glaucoma, retinal, or cataract surgery.
  • History of corneal refractive surgery (LASIK, PRK, SMILE).
  • Diagnosis of secondary glaucoma (neovascular, inflammatory, traumatic, or other secondary causes).
  • History of previous iridotomy, iridoplasty, or trabeculoplasty procedures.
  • Presence of concomitant ocular diseases that may interfere with the evaluation of the ocular surface (e.g., Sjögren's syndrome, active infectious keratitis, or severe ocular allergy).
  • Decompensated systemic conditions that contraindicate the use of topical beta-blockers (uncontrolled asthma, bradycardia, second- or third-degree AV block).
  • Pregnancy or breastfeeding.
  • Any medical or ophthalmological condition that, in the investigator's judgment, compromises the participant's safety or the validity of the data.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Dobbelt

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Aktiv komparator: Preservative-free dorzolamide-timolol-brimonidine combination
Participants will receive treatment with a combination of brimonidine, timolol, and dorzolamide, one drop every 12 hours for four months.
At the start of the study, participants will complete quality-of-life questionnaires and undergo clinical follow-up tests. During the study, they will be randomly assigned to interact with a chatbot during the follow-up phase to compare the impact on treatment adherence. Studies using ocular surface biomarkers will be conducted before and after the assigned treatment.
Andre navn:
  • Biomarkører
  • OSDI
  • Educational Chatbot and Artificial Intelligence-Assisted Electronic Health Record
Annen: Preservative dorzolamide-timolol-brimonidine combination
Participants will receive treatment with a combination of brimonidine, timolol, and dorzolamide, one drop every 12 hours for four months.
At the start of the study, participants will complete quality-of-life questionnaires and undergo clinical follow-up tests. During the study, they will be randomly assigned to interact with a chatbot during the follow-up phase to compare the impact on treatment adherence. Studies using ocular surface biomarkers will be conducted before and after the assigned treatment.
Andre navn:
  • Biomarkører
  • OSDI
  • Educational Chatbot and Artificial Intelligence-Assisted Electronic Health Record

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Changes in efficacy and quality of life and adherence questionnaires between two different formulations
Tidsramme: From enrollment to the end of treatment at 16 weeks
Are there significant differences in ocular surface health, adherence, quality of life, or clinical effectiveness between patients treated with preservative-free Dorzolamide-Timolol-Brimonidine and those receiving preservative-containing Dorzolamide-Timolol-Brimonidine?
From enrollment to the end of treatment at 16 weeks

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Etterforskere

  • Hovedetterforsker: Carlos Cifuentes, MD, Clinica Sigma

Publikasjoner og nyttige lenker

Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.

Generelle publikasjoner

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

10. juni 2026

Primær fullføring (Antatt)

10. juli 2027

Studiet fullført (Antatt)

1. september 2027

Datoer for studieregistrering

Først innsendt

10. juni 2026

Først innsendt som oppfylte QC-kriteriene

5. juli 2026

Først lagt ut (Faktiske)

8. juli 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

8. juli 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

5. juli 2026

Sist bekreftet

1. juli 2026

Mer informasjon

Begreper knyttet til denne studien

Andre studie-ID-numre

  • CEI-002

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

IPD-planbeskrivelse

The information obtained in the study will be at the research center and the analysis will be carried out exclusively by the principal investigator and staff in charge at the Sigma Clinic.

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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