A Phase 3 interventional study of Chloroprocaine 3% eye gel and Oxybuprocaine Hydrochloride 4 Mg/mL Eye Drops in Local Anesthetic, sponsored by Sintetica SA. Completed at 3 sites in Italy. Open to participants aged 1 Day to 18 Years. Per ClinicalTrials.gov, last updated 2026-03-09.
Sponsored by Sintetica SA · Phase 3, Interventional, and Treatment
The goal of this clinical trial is to assess the efficacy and safety of Chloroprocaine 3% eye gel compared to Oxybuprocaine 0,4% eye drops when used for inducing ocular surface anesthesia in pediatric patients.
74 Participants (male and female, aged 0-17 yrs) will be 1:1 randomized for receiving either the test drug (Chloroprocaine) or the reference drug (Oxybuprocaine) before undergoing to ocular exam who needs ocular surface anesthesia.
The successful surface anesthesia will be evaluated 5 minutes after receiving 2 drops (1 minute apart) of either test or reference drug by an eye spear sponge
Sintetica SA is the lead sponsor of 11 studies on the registry; none are open to participants now.
Counted across the registry records on this site, refreshed daily.
To be enrolled in this study, patients must fulfil all these inclusion criteria:
Female subjects currently either of:
Exclusion Criteria:
Ophthalmic exclusion criteria
History of ocular traumatism, infection or inflammation within the last 3 months Systemic/non ophthalmic exclusion criteria
Any other medical or surgical history, disorder or disease such as acute or chronic severe organic disease: hepatic, endocrine neoplasia, hematological diseases, severe psychiatric illness, cardiac rhythm disorders and/or any complicating factor or structural abnormality judged by the investigator to be incompatible with the study
NOT ALLOWED CONCOMITANT MEDICATIONS (washout times) Any change in concomitant anti-depressant medication: no changes permitted during the entire trial duration Any topical ocular treatment: within 15 days before inclusion Systemic opioids and morphine drugs, Sulohonamides, Anticholinesterase drugs: from 15 day before the inclusion visit onwards Any change in other systemic medication already ongoing before the inclusion visit: 7 days before the inclusion visit onwards Other systemic antalgics drugs (except for paracetamol)* from Day 1 onwards
*Paracetamol after primary endpoint assessment and oral, implantable, transdermal, or injectable contraceptives for child-bearing potential girls during the entire study will be allowed
The assigned investigational product (2 drops) will be instilled in both eyes of each subject. Administrations will be performed at the clinical centre by the Investigator or his/her deputy on study day 1. For each administration, the 2 drops will be instilled one at the time, at a 1 min interval.
Drug: Chloroprocaine 3% eye gel
The assigned active comparator (2 drops) will be instilled in both eyes of each subject. Administrations will be performed at the clinical centre by the Investigator or his/her deputy on study day 1. For each administration, the 2 drops will be instilled one at the time, at a 1 min interval.
Drug: Oxybuprocaine Hydrochloride 4 Mg/mL Eye Drops
ocular surface anesthesia
Also known as: Chemical Abstracts Service (CAS) nr 3858-89-7
ocular surface anesthesia
Also known as: Benoxinate
Conjunctiva Anesthesia With Chloroprocaine 3% Eye Gel as Compared With Oxybuprocaine Chlorhydrate 0.4% Eye Drops
Efficacy outcome: assess of patients in each treatment group with a successful conjunctiva anesthesia in the right eye, 5 minutes after study product administration, i.e. right before the ocular examination, to be assessed by eye spear sponge.
Time frame: day 1
Number of Participants With Adverse Events
Evaluation of safety by assessing the occurrence of adverse events throughout the study
Time frame: from day 1 until study end (day 8 or day 15)
Assessing the Product Global Tolerance Graded
Evaluation of safety by assessing the product global tolerance graded by the Investigator by answering the following question "How do you consider the study product global tolerance" using the following scale: 0=very unsatisfactory, 1=unsatisfactory, 2= satisfactory, 3=very satisfactory.
Time frame: day 1, post dose
| Milestone | Chloroprocaine 3% Gel | Oxybuprocaine 0,4% Solution |
|---|---|---|
| Started | 38 | 36 |
| Completed | 37 | 36 |
| Not completed | 1 | 0 |
Efficacy outcome: assess of patients in each treatment group with a successful conjunctiva anesthesia in the right eye, 5 minutes after study product administration, i.e. right before the ocular examination, to be assessed by eye spear sponge.
| participants | Chloroprocaine 3% Gel | Oxybuprocaine 0,4% Solution |
|---|---|---|
| Conjunctiva Anesthesia With Chloroprocaine 3% Eye Gel as Compared With Oxybuprocaine Chlorhydrate 0.4% Eye Drops | 19 | 23 |
Evaluation of safety by assessing the occurrence of adverse events throughout the study
| Participants | Chloroprocaine 3% Gel | Oxybuprocaine 0,4% Solution |
|---|---|---|
| Number of Participants With Adverse Events | 1 | 0 |
Evaluation of safety by assessing the product global tolerance graded by the Investigator by answering the following question "How do you consider the study product global tolerance" using the following scale: 0=very unsatisfactory, 1=unsatisfactory, 2= satisfactory, 3=very satisfactory.
| Participants | Chloroprocaine 3% Gel | Oxybuprocaine 0,4% Solution |
|---|---|---|
| Scores 3 | 25 | 27 |
| Scores 2 | 10 | 7 |
| Scores 1 | 0 | 0 |
| Score 0 | 1 | 2 |
| Not done | 1 | 0 |
Collected over 18 days. Non-serious events are listed at a 0% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Chloroprocaine 3% Gel | 0/37 (0%) | 0/37 (0%) | 1/37 (2.7%) |
| Oxybuprocaine 0,4% Solution | 0/36 (0%) | 0/36 (0%) | 0/36 (0%) |
| Event | Chloroprocaine 3% Gel | Oxybuprocaine 0,4% Solution |
|---|---|---|
| eye pruritusEye disorders | 1/37 | 0/36 |
| Injury cornealEye disorders | 1/37 | 0/36 |
| Age, Categorical(Participants) | Chloroprocaine 3% Gel | Oxybuprocaine 0,4% Solution | Total |
|---|---|---|---|
| <=18 years | 37 | 36 | 73 |
| Between 18 and 65 years | 0 | 0 | 0 |
| >=65 years | 0 | 0 | 0 |
| Sex: Female, Male(Participants) | Chloroprocaine 3% Gel | Oxybuprocaine 0,4% Solution | Total |
|---|---|---|---|
| Female | 14 | 12 | 26 |
| Male | 23 | 24 | 47 |
| Ethnicity (NIH/OMB)(Participants) | Chloroprocaine 3% Gel | Oxybuprocaine 0,4% Solution | Total |
|---|---|---|---|
| Hispanic or Latino | 4 | 2 | 6 |
| Not Hispanic or Latino | 33 | 32 | 65 |
| Unknown or Not Reported | 0 | 2 | 2 |
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Sintetica SA