Oncology Treatment Related Ocular Surface Changes (23AA01)

June 18, 2026 updated by: Barcsay-Veres Amarilla, Semmelweis University

Ophthalmological Examination of Changes Induced by Therapy and Ocular Surface Abnormalities in Patients With Cancer

clinical trial

The goal of this clinical trial is to learn if drug trastuzumab works to treat HER2 positive mamma carcinomas without causing dry eye related ocular surface changes in adults. The main questions it aims to answer are:

Does trastuzumab increase the dry eye related subjective symptoms? Does trastuzumab cause increased tear film instability and corneal epithelial staining (Oxford score), and lipid layer deterioration? Is a dose-dependent ocular surface effect identifiable attributable to trastuzumab and their modification by patient age?

Participants will:

Take drug trastuzumab-based chemotherapy based on the decision of the local onco-team.

Visit the clinic once every 3 months for checkups and tests Keep a diary of their ocular symptoms Make ocular examination and measure dry eye related parameters

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Actual)

35

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Hungary
      • Budapest, Hungary, 1085
        • Semmelweis University Ophthalmology Department

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

location Semmelweis University Budapest

Description

Inclusion Criteria:

  • Patients received the following anti-HER2 therapies (according to protocol and national guidelines in Hungary at the time) administered either as monotherapy or in combination based on disease characteristics: trastuzumab (alone or in combination with pertuzumab), pertuzumab (in combination with trastuzumab), trastuzumab emtansine (monotherapy), and trastuzumab deruxtecan (monotherapy).
  • General eligibility criteria for anti-HER2 therapy included patients over the age of 18 years, of either sex, with invasive breast cancer showing HER2 overexpression as determined by immunohistochemistry (IHC) and/or fluorescence in situ hybridization (FISH).

Exclusion Criteria:

  • not willing to participate
  • any preexisting ocular disease
  • Eastern Cooperative Oncology Group (ECOG) performance status higher than 2 -inadequate bone marrow, renal, and hepatic function
  • untreated cardiac disease
  • left ventricular ejection fraction (LVEF) of less than 50%.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Trastuzumab treatment
Drug: Trastuzumab (Herceptin)
trastuzumab treatment as the oncoteam advised

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Tear film break up time
Time Frame: through study completion, an average of 1 year
Zero is equivalent to no stability, very short breaking up time. The more seconds, the longer the time and higher the stability, during the tear film remains healthy and stable .
through study completion, an average of 1 year

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Ocular Surface Disease Index
Time Frame: through study completion, an average of 1 year
Zero is equivalent to no pain or discomfort and the higher the points, the more pain and discomfort is detected. Range 0-100.
through study completion, an average of 1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Semmelweis University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

May 18, 2021

Primary Completion (Actual)

May 31, 2026

Study Completion (Actual)

May 31, 2026

Study Registration Dates

First Submitted

June 9, 2026

First Submitted That Met QC Criteria

June 18, 2026

First Posted (Actual)

June 24, 2026

Study Record Updates

Last Update Posted (Actual)

June 24, 2026

Last Update Submitted That Met QC Criteria

June 18, 2026

Last Verified

June 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • OGYEI/18718-6/2021

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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