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CTRI Number  CTRI/2022/07/043859 [Registered on: 08/07/2022] Trial Registered Prospectively
Last Modified On: 04/09/2025
Post Graduate Thesis  No 
Type of Trial  PMS 
Type of Study   Medical Device
Other (Specify) [Eye drops]  
Study Design  Other 
Public Title of Study   the study is to evaluate safety and performance of Preservative Free Eye Preparations - Sodium Hyaluronate Preservative Free Eye Drops. 
Scientific Title of Study   A post market clinical follow up prospective study to evaluate safety and performance of Preservative free Eye Preparations – Eye Drops/Sodium Hyaluronate Preservative free Eye Drops  
Trial Acronym   
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  DrChethan S Sadanand 
Designation  MBBS, MS (OPHTHALMIC-SURGEON) 
Affiliation  Vivekananda Eye Hospital,Bengaluru,Karnataka 
Address  1st Floor, Room no.4, Vivekananda Eye Hospital, 2951, Esturi Towers, complex, Krishna Rajendra Rd, Siddanna Layout, Banashankari Stage II, Banashankari, Bengaluru, Karnataka 560070

Bangalore
KARNATAKA
560070
India 
Phone  9600122287  
Fax    
Email  chethan.sadanand@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  DrChethan S Sadanand 
Designation  MBBS, MS (OPHTHALMIC-SURGEON) 
Affiliation  Vivekananda Eye Hospital,Bengaluru,Karnataka 
Address  1st Floor, Room no.4, Vivekananda Eye Hospital, 2951, Esturi Towers, complex, Krishna Rajendra Rd, Siddanna Layout, Banashankari Stage II, Banashankari, Bengaluru, Karnataka 560070

Bangalore
KARNATAKA
560070
India 
Phone  9600122287  
Fax    
Email  chethan.sadanand@gmail.com  
 
Details of Contact Person
Public Query
 
Name  DrChethan S Sadanand 
Designation  MBBS, MS (OPHTHALMIC-SURGEON) 
Affiliation  Vivekananda Eye Hospital,Bengaluru,Karnataka 
Address  1st Floor, Room no.4, Vivekananda Eye Hospital, 2951, Esturi Towers, complex, Krishna Rajendra Rd, Siddanna Layout, Banashankari Stage II, Banashankari, Bengaluru, Karnataka 560070

Bangalore
KARNATAKA
560070
India 
Phone  9600122287  
Fax    
Email  chethan.sadanand@gmail.com  
 
Source of Monetary or Material Support  
STERICON PHARMA PRIVATE LIMITED 
 
Primary Sponsor  
Name  STERICON PHARMA PRIVATE LIMITED 
Address  STERICON PHARMA PRIVATE LIMITED. Plot No. 9R, Sub layout of Plot No 9, 1st Phase, Bommasandra Industrial Area, Bangalore - 560 099  
Type of Sponsor  Pharmaceutical industry-Indian 
 
Details of Secondary Sponsor  
Name  Address 
NIL  NIL 
 
Countries of Recruitment     India  
Sites of Study  
No of Sites = 1  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
DrChethan S Sadanand  Vivekananda Eye Hospital, Bengaluru, Karnataka  1st Floor, Room no.4, Vivekananda Eye Hospital, 2951, Esturi Towers, complex, Krishna Rajendra Rd, Siddanna Layout, Banashankari Stage II, Banashankari, Bengaluru, Karnataka 560070
Bangalore
KARNATAKA 
9600122287

chethan.sadanand@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
ACE Independent Ethics Committee  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: H28||Cataract in diseases classified elsewhere,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Not Applicable  Not Applicable 
Intervention  PRESERVATIVE FREE EYE PREPARATIONS -EYE DROPS/ SODIUM HYALURONATE PRESERVATIVE FREE EYE DROPS  Eye drops soothes and gives comfort to the eyes. It is recommended to use one or two drops into the eye (or eyes) affected by dryness. Many people find it is sufficient to use the drops three or four times a day, but it can be used as often as needed to if the eyes are very dry. If the drops have been prescribed then follow the directions given by the doctor. To apply the eye drops: •Instill one or two drops into each eye when required, or use as directed by your eye care practitioner. •Blink several times. •Replace the cap tightly after use. Persons who experience dryness/itchiness/discomfort of eyes due to the continuous use of computer/TV/ exposed pollution /dry environment. The frequency of application of eye drops depends upon Eye dryness condition of the subject. The study duration for intervention is 90 days.  
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  75.00 Year(s)
Gender  Both 
Details  At the time of screening and usage of the product all subjects must meet the following criteria for inclusion into the study and the subjects must be which is prescribed by a medical practitioner. The inclusion criteria for the subjects for this study are as follows:
-Subjects who experience dryness, Itchiness, discomfort of eyes due to the continuous use of computer/TV/exposed pollution/dry environment
-Subjects wearing contact lenses who experience dryness, Itchiness, discomfort of eyes due to the continuous use of computer/TV/exposed pollution/dry environment
 
 
ExclusionCriteria 
Details  The below Subjects are excluded from the study:
-Subjects who are not willing to participate in the study
-Anyone with known allergic reaction to Sodium Hyaluronate Preservative Free eye drops
-Subjects with existing eye infection
-Subjects undergone recent (6 weeks)cataract surgery who are on other eye drops
 
 
Method of Generating Random Sequence   Other 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
The primary objective is to confirm clinical safety and performance of the product Sodium Hyaluronate (Preservative free eye drop) by performing a set of eye examinations (i.e. -visual acuity test, IOP measurement, corneal staining, TBUT test, Schirmer’s Test) considering the baseline from the initial visit and the data obtained during the follow up visits. If the end user is a contact lens wearer contact lens characteristics will be checked at the end of the study  1st Visit - After 8 days of using the product
2nd Visit - After one month of using the product
3rd Visit - After two months of using the product
4th Visit - After three months of using the product 
 
Secondary Outcome  
Outcome  TimePoints 
The secondary objective is to assess any emerging undesirable events along with monitoring of desired events, contraindications, residual risk, emerging risk under normal usage of the eye drops for prolonged period to ensure acceptability of benefit risk ratio of the Eye drop, which will be recorded in CRF during every follow up visit based on the subject rating. The study will be focused on identifying possible systematic misuse or off-label use of the device.  1st Visit - After 8 days of using the product
2nd Visit - After one month of using the product
3rd Visit - After two months of using the product
4th Visit - After three months of using the product 
 
Target Sample Size   Total Sample Size="396"
Sample Size from India="396" 
Final Enrollment numbers achieved (Total)= "396"
Final Enrollment numbers achieved (India)="396" 
Phase of Trial   Post Marketing Surveillance 
Date of First Enrollment (India)   15/07/2022 
Date of Study Completion (India) 28/06/2023 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Date Missing 
Estimated Duration of Trial   Years="0"
Months="8"
Days="0" 
Recruitment Status of Trial (Global)
Modification(s)  
Not Applicable 
Recruitment Status of Trial (India)  Completed 
Publication Details   No 
Individual Participant Data (IPD) Sharing Statement

Will individual participant data (IPD) be shared publicly (including data dictionaries)?  

Response - NO
Brief Summary
Modification(s)  
A post market clinical follow up prospective study to evaluate safety and performance of Preservative free Eye Preparations – Eye Drops/Sodium Hyaluronate Preservative free Eye Drops .

Sodium Hyaluronate Preservative free Eye Drops are used to relieve eye discomfort and soreness due to environmental factors. They moisten, soothe and lubricate the surface of the eye, making it feel more comfortable. Sodium hyaluronate is a derivative of hyaluronic acid. Sodium hyaluronate has water retaining properties and provides a low resistance to blinking. It is highly effective at entrapping water and preventing evaporation; this prolongs any beneficial effects. Sodium Hyaluronate (SH) is a glycosaminoglycan, present in natural tears, with excellent viscoelastic; lubricating and water retention properties. Its retention time on the ocular surface is high.

Phosphate buffer (disodium hydrogen phosphate & Sodium dihydrogen phosphate dihydrate) and & Citrate Buffer (Sodium Citrate & Citric Acid ) are the most physiologic of all the common buffers, as it’s a natural buffer occurring in tears.

Sodium Hyaluronate Preservative free Eye Drops can be used to protect the eye from irritations/dryness/discomfort due to continuous use of computer/TV/exposed pollution/dry environment, and use of contact lenses.
 There will be 4 follow up visits expected after using the product:

  1st Visit - After 8 days of using the product

 2nd Visit - After one month of using the product

 3rd Visit - After two months of using the product

                  4th Visit - After three months of using the product 

Intended purpose

Persons who experience dryness, Itchiness, discomfort of eyes due to the continuous use of computer/TV/exposed pollution/dry environment use the eye drops to soothe the eyes.

Intended users

Persons who experience dryness/itchiness/discomfort of eyes due to the continuous use of computer/TV/ exposed pollution /dry environment.


This study will be a prospective, multi-centric, non-randomized study. The subjects visiting the study centers with the complaints such as eye dryness, Itchiness, discomfort of eyes due to the continuous use of computer/TV/exposed pollution/dry environment will be screened then they will be selected for the study. A total of 396 subjects will be recruited for this study for the Sodium Hyaluronate Preservative Free Eye Drops.

Results-
PMCF studies were conducted at Vivekananda Sevasharama Eye Hospital, Bangalore, to evaluate Sodium Hyaluronate Eye Drops in different concentrations (0.1%, 0.2%, 0.3%) and buffer systems (Citrate and Phosphate), covering 396 subjects across various age groups (17–85 years), with a slightly higher proportion of female participants. The target population included individuals with dryness, irritation, itching, redness, strain, watering, and eye discomfort due to screen exposure, pollution, or dry environments. 

Across all formulations, corneal staining remained stable, intraocular pressure (IOP) and visual acuity showed no clinically significant changes, and best corrected distance visual acuity (BCDVA) stayed within the normal range. Schirmer’s test and TBUT consistently demonstrated improved tear film stability and eye moisture, confirming product efficacy, with better results in younger age groups. Contact lens wearers showed no adverse changes in lens characteristics, confirming compatibility. 

Safety was well established for 0.1% (Citrate/Phosphate) and 0.3% Citrate formulations, with no adverse events reported. For 0.2% Citrate, only mild, transient discomfort was observed without dropouts. In contrast, with 0.2% Phosphate buffer, some subjects reported irritation/redness on days 8 and 30, leading to dropouts (19 and 11 respectively). Investigation revealed no product quality issues; possible causes included user sensitivity or IFU non-compliance. These events were non-serious, and overall safety remained acceptable. 

Clinical performance was consistently positive, with subjects reporting soothing, lubricating, moisturizing, and refreshing effects. Symptom relief lasted 2–5 hours for 0.1% Citrate, 5–8 hours for 0.2% Citrate, and extended up to an entire day for 0.3% Citrate and 0.1%/0.2% Phosphate formulations. Doctors (PIs) rated overall satisfaction as “good” for all subjects, and most participants reported improved comfort, reduced soreness, and better quality of life.In conclusion, all formulations of Sodium Hyaluronate Eye Drops demonstrated strong safety, efficacy, and performance profiles. While transient irritation was observed with the 0.2% Phosphate formulation in a minority of subjects, the overall benefit–risk ratio remained highly favorable across all products.
 
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