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Office-based verg/accomm therapy (OBVAT) for Convergence Insufficiency (CITT-ART Trial)

Phase 3
Waitlist Available
Led By Lynn MItchell, MAS
Research Sponsored by Salus University
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Be younger than 18 years old
Timeline
Screening 3 weeks
Treatment Varies
Follow Up after 16 weeks of treatment
Awards & highlights
Pivotal Trial

Summary

CITT-ART is a multicenter study (8 locations around the United States) of 324 children ages 9 to \<14 years with symptomatic convergence insufficiency (CI). The purpose of this study is to see if office-based therapy for convergence insufficiency (CI) improves reading ability and attention. CI is an eye-teaming problem where the eyes would like to drift outward when reading or doing close work. When eyes drift out, double vision can happen. To prevent double vision one must use extra effort to keep the eyes from going out. This extra effort can cause symptoms that can interfere with reading and working comfortably at near. These symptoms often include eyestrain, blurred vision, headaches, double vision, and loss of place when reading or performing tasks at near. In a prior study we found that therapy improves these symptoms. In this study we are looking at whether the therapy improves reading and attention

Eligible Conditions
  • Convergence Insufficiency

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~after 16 weeks of treatment
This trial's timeline: 3 weeks for screening, Varies for treatment, and after 16 weeks of treatment for reporting.

Treatment Details

Study Objectives

Study objectives can provide a clearer picture of what you can expect from a treatment.
Primary study objectives
The change in the Wechsler Individual Achievement Test-III (WIAT-III) reading comprehension score as measured after the completion of 16 weeks of assigned treatment (OBVAT or OBPT).
Secondary study objectives
Academic Behavior Survey (ABS)
Curriculum Based Measurement (CBM)
Gates-McGintie 4
+2 more

Awards & Highlights

Pivotal Trial
The final step before approval, pivotal trials feature drugs that have already shown basic safety & efficacy.

Trial Design

2Treatment groups
Experimental Treatment
Placebo Group
Group I: Office-based verg/accomm therapy (OBVAT)Experimental Treatment1 Intervention
OBVAT requires a participant to undergo a specific vision therapy regimen with 16 weekly, 60-minute in-office treatment sessions. Vision Therapists (O.D., M.D., Orthoptists, or specially-trained technicians) administer the therapy in the office. OBVAT procedures are then supplemented with various home therapy procedures
Group II: Office-based placebo therapy (OBPT)Placebo Group1 Intervention
Office-based Placebo Therapy (OBPT) requires a participant to undergo a specific therapy regimen of 16 weekly, 60 minute, in-office treatment sessions. Vision therapists (optometrists, ophthalmologists, orthoptists, or specially-trained technicians) administer the therapy in the office. OBPT procedures are then supplemented with placebo home therapy procedures. The procedures for OBPT are designed with the intent of not providing a beneficial training effect on vergence, accommodation, saccadic accuracy, or visual attention beyond normal activities. However, the procedures are designed to simulate real vision therapy in such a way that it will be difficult for participants and parents to know that they have been assigned to the control group and thus are not receiving bonafide OBVAT

Find a Location

Who is running the clinical trial?

Salus UniversityLead Sponsor
14 Previous Clinical Trials
666 Total Patients Enrolled
3 Trials studying Convergence Insufficiency
210 Patients Enrolled for Convergence Insufficiency
Marshall B. Ketchum UniversityUNKNOWN
1 Previous Clinical Trials
264 Total Patients Enrolled
1 Trials studying Convergence Insufficiency
264 Patients Enrolled for Convergence Insufficiency
Ohio State UniversityOTHER
866 Previous Clinical Trials
654,813 Total Patients Enrolled
3 Trials studying Convergence Insufficiency
621 Patients Enrolled for Convergence Insufficiency
~27 spots leftby Nov 2025