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Study to evaluate and compare the efficacy of local anesthetics Chloroprocaine 3% gel and Tetracaine 0.5% eye drops in cataract surgery.

A prospective, observer-masked, randomized clinical trial to investigate and compare the clinical efficacy of chloroprocaine 3% gel and tetracaine 0.5% eye drop as topical anesthetics in phacoemulsification.

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2019-001660-30-SK
Enrollment
342
Registered
2020-03-31
Start date
2020-06-03
Completion date
Unknown
Last updated
2021-06-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

cataract surgery MedDRA version: 20.0 Level: PT Classification code 10063797 Term: Cataract operation System Organ Class: 10042613 - Surgical and medical procedures

Interventions

Product Name: Chloroprocaine 3% Pharmaceutical Form: Eye gel INN or Proposed INN: CHLOROPROCAINE CAS Number: 133-16-4 Concentration unit: % (W/V) percent weight/volume Concentration type: equal Concen

Sponsors

Sintetica S.A.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: To be enrolled in this study, subjects must fulfil all these inclusion criteria: 1. Signed and dated informed consent 2. Male or female aged = 18 years 3. Senile or pre-senile cataract 4. Scheduled to undergo cataract surgery in a single eye at a time (clear corneal self-sealing incisions - phacoemulsification – foldable intra-ocular lens surgery with injector) Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 228 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 114

Exclusion criteria

Exclusion criteria: Patients fulfilling at the selection visit ONE OR MORE of the following exclusion criteria will not be enrolled in the study: Ophthalmic exclusion criteria ? Surgical conditions in the eye to be operated: 1. Combined surgery 2. Previous intraocular surgery 3. Previous corneal refractive surgeries less than 6 months before screening ? Non-surgical conditions in the eye to be operated: 4. Non Senile or non pre-senile cataract (e.g.: traumatic, pathological or congenital cataract) 5. Pupillary abnormalities (irregular, etc.) 6. Iris synechiae 7. Eye movement disorder (nystagmus, etc.) 8. Dacryocystitis and all other pathologies of tears drainage system 9. History of Inflammatory ocular disease (Iritis, uveitis, herpetic keratitis) 10. Corneal, epithelial, stromal or endothelial, residual or evolutionary disease (including corneal ulceration and superficial punctuate keratitis) 11. History of ocular traumatism, infection or inflammation within the last 3 months 12. Pseudo-exfoliation, exfoliative syndrome 13. Prior intravitreal injections within 7 days of the surgery 14. IOP over 25mmHg under treatment ? Ophthalmic conditions in the contra-lateral eye: 15. Best corrected visual acuity < 1/10 16. Patient already included in the study for phakoexeresis 17. History of ophthalmic surgical complication (cystoid macular oedema, etc.) Other criteria are defined in the study protocol (Systemic/non ophthalmic exclusion criteria, Specific exclusion criteria for women, Exclusion criteria related to general conditions, Exclusion criteria related to previous and concomitant medications / non-product therapies).

Design outcomes

Primary

MeasureTime frame
Main Objective: Equivalence evaluation of Test versus Reference products in terms of proportion of subjects with a successful surface anesthesia for cataract surgery, without any supplementation at T4 (just before Intra Ocular Lens implantation) Successful surface anesthesia & Supplementation are defined in the study protocol. ;Secondary Objective: Assess the clinical efficacy and safety of 3% chloroprocaine gel compared to those of tetracaine 0.5% eye drop.;Primary end point(s): ?he proportion of subjects in each treatment group with a successful surface anesthesia, without any supplementation at the time point T4. ;Timepoint(s) of evaluation of this end point: T4 = just before Intra Ocular Lens implantation

Secondary

MeasureTime frame
Secondary end point(s): Efficacy end-points during surgery: ? Successful surface anesthesia at T1, T2 and T3 based on patient questioning: Patient’s operated eye discomfort. ? Time to obtain sufficient anesthesia (use of forceps). ? Total time of anesthesia ? Blinking reflex dropping a water drop at the end of the surgery ? Number of supplemental drops necessary for obtaining and/or maintaining anesthesia ? Supplementary treatments (general anesthesia or intra-operative systemic analgesia) necessary for obtaining and/or maintaining anesthesia ? Total surgical time ? Assessment of surgical comfort by the surgeon of each stage of the surgical procedure. ? Assessment of the global efficacy by the surgeon for anesthesia. Safety end-points: - Ocular symptoms (pain, irritation/burning/stinging, photophobia, foreign body sensation) will be graded by the patients according to the following scale: 0 = absent, 1 = mild, 2 = moderate, 3 = severe. - Objective ocular signs (palpebral edema, chemosis, conjunctival hyperemia, conjunctival discharge, follico-papillary conjunctivitis, corneal staining punctuations, anterior chamber cells) assessed by slit lamp examination, flare, and other objective ocular signs will be graded according to the following scale: 0 = none, 1 = mild, 2 = moderate, 3 = severe. Modification of the basal status of the following assessments: - Slit lamp examination and fluorescein test - Endothelial cell counts (specular microscopy) - Corneal thickness (pachymetry) - Best far corrected visual acuity - Fundoscopy - Intra-ocular pressure - Vital signs (blood pressure and heart rate) - AEs occurrence - Surgeon satisfaction: “How do you consider the study product global tolerance” will be graded according to the following scale: 0 = very satisfactory, 1 = satisfactory, 2 = not very satisfactory, 3 = unsatisfactory. - Patient global satisfaction at Visit 3/D2 (5-scale points questionaire read by a masked observer).;Timepoint(s) of evaluation of this end

Countries

Italy, Slovakia, Spain

Contacts

Public ContactClinical Operations

Iris Pharma

+33493594959

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026