ClinicalTrials.gg
CompletedNCT03519516PRO-174/IUpdated Oct 25, 2019Results posted

Safety and Tolerability of the PRO-174 Versus Sophixín Ofteno®, on the Ocular Surface of Healthy Subjects

A Phase 1 interventional study of PRO-174 and Sophixín Ofteno® in Conjunctivitis and Conjunctivitis, Bacterial, sponsored by Laboratorios Sophia S.A de C.V.. Completed at 1 site in Mexico. Open to participants aged 18 Years to 45 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2019-10-25.

Primary conditionConjunctivitis, BacterialRegistry: ConjunctivitisReclassifiedWhy we changed it
Registry
Conjunctivitis — the first condition term the registry derived for this study.
ClinicalTrials.gg
Conjunctivitis, Bacterial
Why
  1. The study's listed conditions name Conjunctivitis, Bacterial, a narrower term within Conjunctivitis.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Laboratorios Sophia S.A de C.V. · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Registered 3 months after the study started (first participant enrolled Jan 2018, registered Apr 2018).
Phase
Phase 1
Study type
Interventional
Enrollment
30
Allocation
Randomized
Ages
18 Years to 45 Years
Sex
All
01

Study summary

Phase I clinical trial, to evaluate the safety and tolerability of the ophthalmic solution PRO-174 versus Sophixín Ofteno®, elaborated by Laboratorios Sophia, S.A. of C.V. on the ocular surface of ophthalmologically and clinically healthy subjects.

Goals:

To evaluate the safety and tolerability of the formulation PRO-174 manufactured by Laboratorios Sophia, S.A. of C.V. on the ocular surface of clinically healthy subjects.

Hypothesis:

The ophthalmic solution PRO-174 presents a safety and tolerability profile similar to the comparator in healthy subjects.

Read the detailed description

Phase I clinical trial, to evaluate the safety and tolerability of the ophthalmic solution PRO-174 versus Sophixín Ofteno®, elaborated by Laboratorios Sophia, S.A. of C.V. on the ocular surface of ophthalmologically and clinically healthy subjects.

Goals:

Methodology:

Phase I clinical trial, controlled, of parallel groups, double blind, randomized, exploratory.

Number of patients:

30 subjects, divided into 2 groups [15 subjects (30 eyes) exposed per group]

Test product, dose and route of administration, lot number:

  • PRO-174. Levofloxacin 0.5% ophthalmic solution. Prepared by Laboratorios Sophia, S.A. of C.V., Zapopan, Jalisco, Mexico.
  • Dosage: 1 drop every 2 hours during the waking period (8 daily applications), on day 1 and 2; continuing with 1 drop every 4 hours during the waking period (4 daily applications) from day 3 to 7. Both eyes.
  • Route of administration: ophthalmic

Duration of treatment: 7 days

Statistical methodology:

The data will be expressed with measures of central tendency: mean and standard deviation for the quantitative variables. The qualitative variables will be presented in frequencies and percentages. The statistical analysis will be carried out through the Mann-Whitney U test for the quantitative variables for the difference between the groups. The intra-group difference will be made with the Wilcoxon rank test. The difference between the qualitative variables will be analyzed by means of X2 (Chi2). An alpha ≤ 0.05 will be considered significant.

02

Conditions studied

  • Conjunctivitis
  • Conjunctivitis, Bacterial

Browse trials for

Keywords

  • ocular antibiotic
  • quinolone
  • levofloxacin
  • ophthalmic antibiotic
  • antibiotic in drops
03

In context

Conjunctivitis, Bacterial Reclassified

40 studies on the registry are indexed under Conjunctivitis, Bacterial; 2 are open to participants now.

This study's enrollment of 30 is below the median of 261 across 36 interventional studies indexed under Conjunctivitis, Bacterial.

Browse Conjunctivitis, Bacterial studies →

Lead sponsor

Laboratorios Sophia S.A de C.V. is the lead sponsor of 45 studies on the registry; 5 are open to participants now.

Compared within Conjunctivitis, Bacterial, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Conjunctivitis. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
18 Years to 45 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Signed .
  • Systemically and ophthalmologically healthy subjects evaluated during the clinical history.
  • Age between 18 to 45 years.
  • Both genders.
  • Blood tests (complete blood count, blood chemistry of three elements and liver function tests) within normal parameters specified by the reference laboratory with a lower and upper margin of 10%.
  • Vital signs within normal parameters. (Vital signs at rest: blood pressure ≤ 139/89 mmHg, heart rate 60 -100 beats per minute and respiratory rate of 12-24 breaths per minute).
  • Visual capacity 20/30 or better, in both eyes.
  • Intraocular pressure ≥11 and ≤ 21 mmHg.

Exclusion criteria

Exclusion Criteria:

General criteria

  • Subjects with a history of to any of the components of the research products.
  • Subject users of topical ophthalmic medications of any pharmacological group.
  • Subject users of medication by any other route of administration.
  • Pregnant or lactating women.
  • Women of childbearing age, who do not ensure a hormonal method or intrauterine device during the study period or without a history of bilateral tubal obstruction, oophorectomy or hysterectomy; as fertile age we understand women who have not had their menopause, defined as 12 months since the last menstruation in women over 40 years.
  • Subjects with participation in clinical research studies 90 days prior to inclusion in the present study.
  • Diagnosis of liver disease or elevation to three times the normal upper value of any of the following liver enzymes: aspartate transferase (), alanine transferase (ALT) or .
  • Inability to attend or answer the evaluations made in each of the visits.
  • Positive smoking (specified as cigarette consumption regardless of amount and frequency)
  • Positive alcoholism (specified as the consumption of alcoholic beverages, regardless of quantity and frequency, during the study intervention period).
  • Contact lens users.
  • An occlusive iridocorneal angle, defined as a trabecular mesh visible at less than 90 ° from the angular circumference to gonioscopy.
Terms in these criteria, in plain language(5)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
30 participants (actual)

Study arms

  • Experimental
    PRO-174

    Active ingredient: Levofloxacin 0.5% o Dosage: 1 drop in both eyes, 8 times a day during the waking period

    Drug: PRO-174

  • Active comparator
    Sophixín Ofteno®

    o Dosage: 1 drop in both eyes, 8 times a day during the waking period

    Drug: Sophixín Ofteno®

Interventions

  • Pharmaceutical form: ophthalmic solution * Prepared by: Laboratorios Sophia, S.A. of C.V. * Description of the solution: transparent solution, free of visible particles. * Description of container: sterile multi-dose bottle

    Also known as: PRO174, Levofloxacin Ophthalmic Solution

  • DrugSophixín Ofteno®

    * Active substance: Ciprofloxacin 0.3% * Pharmaceutical form: Ophthalmic solution * Prepared by: Laboratorios Sophia, S.A. of C.V. * Description of the solution: transparent solution, free of visible particles. * Description of container: sterile multi-dose bottle

    Also known as: Ciprofloxacin Ophthalmic solution

06

What researchers measure

Primary outcomes

  1. Number of Adverse Events (EAS)

    primary security variable the adverse events will be evaluated with a scale of Present / Absent, it is a nominal variable, the normal value is absent.

    Time frame: during the 12 days of evaluation, including the safety call (day 12).

  2. Ocular Burning (OB)

    primary tolerability variable Ocular burning is a nominal variable that will be evaluated by direct questioning to the research subject, then it will be staged according to the following scale: Severity: Absent, very mild, mild, moderate and severe, where the normality of severity is absent.

    Time frame: will be evaluated at the end of the treatment at the final visit (day 7)

Secondary outcomes

  1. Intraocular Pressure (IOP)

    the intraocular pressure will be evaluated by means of the Goldman applanation tonometry whose unit of measurement is millimeters of mercury (mmHg), it is a continuous variable and its normality range is between 11 - 21 mmHg

    Time frame: will be evaluated at the end of the treatment at the final visit (day 7)

  2. Breakup Time (BUT)

    breakup time lacrimal film is a continuous variable that will be measured in seconds, evaluating the time it takes to break it, is done by direct counting and the normality range and mayor to 10 seconds.

    Time frame: will be evaluated at the end of the treatment at the final visit (day 7)

  3. Number of Eyes With Epithelial Defects (ED) by Grade

    The epithelial defects will be evaluated by means of two stains, green lysine and fluorescein, it is a discrete variable that will be realized by direct observation, it will be staged according to the degrees of the oxford scale that go from 0 to 5 (0-V) according to its severity, where 0 is the normal lower limit and 5 the upper limit of defects.

    Time frame: will be evaluated at the end of the treatment at the final visit (day 7)

  4. Percentage of Eyes With Conjunctival Hyperemia (CH) by Grade

    Conjunctival hyperemia will be evaluated as an ordinal variable, by direct observation and staged using the Efron scale as Normal / Very Light / Mild / Moderate / Severe. Based on this scale, the normal and mild stages are considered without pathologies or normal. Mild, moderate and severe are considered pathological.

    Time frame: will be evaluated at the end of the treatment at the final visit (day 7)

  5. Number of Eyes With Foreign Body Sensation (FBS) by Grade

    Foreign body sensation is a nominal variable that will be evaluated by direct questioning to the research subject, then it will be staged according to the following scale: Severity: Absent, very mild, mild, moderate and severe, where the normality of severity is absent.

    Time frame: will be evaluated at the end of the treatment at the final visit (day 7)

  6. Number of Eyes With Ocular Pruritus (P) by Grade

    Ocular pruritus is a nominal variable that will be evaluated by direct questioning to the research subject, then it will be staged according to the following scale: Severity: Absent, very mild, mild, moderate and severe, where the normality of severity is absent.

    Time frame: will be evaluated at the end of the treatment at the final visit (day 7)

  7. Number of Eyes of Chemosis

    The chemosis will be evaluated, as a nominal variable, by direct observation and it will be staged as present and absent, where the normality is that said variable is absent.

    Time frame: will be evaluated at the end of the treatment at the final visit (day 7)

  8. Visual Capacity

    The visual capacity variable will be reported using as a unit of measure a fraction, this is taken from a visual test with the Snellen primer, it is a Nominal type variable. where the optimal vision is 20/20 and higher scores indicate worse visual acuity. Snellen Scale: 20/200, 20/100, 20/70, 20/50, 20/40, 20/30, 20/25, 20/20, 20/15, 20/12, 20/10 only the denominator of the fraction of each case is reported and averaged per group.

    Time frame: will be evaluated at the end of the treatment at the final visit (day 7)

07

Results

Posted Oct 25, 2019

Participant flow

Participant flow — Overall Study
MilestonePRO-174Sophixín Ofteno®
Started1515
Completed1514
Not completed01
Withdrew: Adverse event01

Outcome measures

PrimaryNumber of Adverse Events (EAS)

primary security variable the adverse events will be evaluated with a scale of Present / Absent, it is a nominal variable, the normal value is absent.

Time frame:
during the 12 days of evaluation, including the safety call (day 12).
Reported as:
Number · adverse events
Number of Adverse Events (EAS)
adverse eventsPRO-174Sophixín Ofteno®
Number of Adverse Events (EAS)1110
Statistical analysis
  • PRO-174 vs Sophixín Ofteno® · Wilcoxon (Mann-Whitney) · p = 0.749
PrimaryOcular Burning (OB)

primary tolerability variable Ocular burning is a nominal variable that will be evaluated by direct questioning to the research subject, then it will be staged according to the following scale: Severity: Absent, very mild, mild, moderate and severe, where the normality of severity is absent.

Time frame:
will be evaluated at the end of the treatment at the final visit (day 7)
Reported as:
Number · percentage of participants
Ocular Burning (OB)
percentage of participantsPRO-174Sophixín Ofteno®
Normal86.757.1
Very mild6.714.3
mild6.728.6
Statistical analysis
  • PRO-174 vs Sophixín Ofteno® · Chi-squared · p = 0.041
SecondaryIntraocular Pressure (IOP)

the intraocular pressure will be evaluated by means of the Goldman applanation tonometry whose unit of measurement is millimeters of mercury (mmHg), it is a continuous variable and its normality range is between 11 - 21 mmHg

Time frame:
will be evaluated at the end of the treatment at the final visit (day 7)
Reported as:
Mean · mmHg
Intraocular Pressure (IOP)
mmHgPRO-174Sophixín Ofteno®
Intraocular Pressure (IOP)12.53 ± 1.012.68 ± 1.7
Statistical analysis
  • PRO-174 vs Sophixín Ofteno® · Wilcoxon (Mann-Whitney) · p = 0.694
SecondaryBreakup Time (BUT)

breakup time lacrimal film is a continuous variable that will be measured in seconds, evaluating the time it takes to break it, is done by direct counting and the normality range and mayor to 10 seconds.

Time frame:
will be evaluated at the end of the treatment at the final visit (day 7)
Reported as:
Mean · seconds
Breakup Time (BUT)
secondsPRO-174Sophixín Ofteno®
Breakup Time (BUT)15.27 ± 2.715.79 ± 2.9
Statistical analysis
  • PRO-174 vs Sophixín Ofteno® · Wilcoxon (Mann-Whitney) · p = 0.495
SecondaryNumber of Eyes With Epithelial Defects (ED) by Grade

The epithelial defects will be evaluated by means of two stains, green lysine and fluorescein, it is a discrete variable that will be realized by direct observation, it will be staged according to the degrees of the oxford scale that go from 0 to 5 (0-V) according to its severity, where 0 is the normal lower limit and 5 the upper limit of defects.

Time frame:
will be evaluated at the end of the treatment at the final visit (day 7)
Reported as:
Number · eyes
Number of Eyes With Epithelial Defects (ED) by Grade
eyesPRO-174Sophixín Ofteno®
Green lissamine grade 120
Green lissamine grade 02828
luorescein grade 130
fluorescein grade 02728
Statistical analysis
  • PRO-174 vs Sophixín Ofteno® · Chi-squared · p = 0.492 (statistical analysis between groups for final visit with green lissamine)
  • PRO-174 vs Sophixín Ofteno® · Chi-squared, Corrected · p = 0.238 (statistical analysis between groups for final visit with fluorescein)
SecondaryPercentage of Eyes With Conjunctival Hyperemia (CH) by Grade

Conjunctival hyperemia will be evaluated as an ordinal variable, by direct observation and staged using the Efron scale as Normal / Very Light / Mild / Moderate / Severe. Based on this scale, the normal and mild stages are considered without pathologies or normal. Mild, moderate and severe are considered pathological.

Time frame:
will be evaluated at the end of the treatment at the final visit (day 7)
Reported as:
Number · percentage of eyes
Percentage of Eyes With Conjunctival Hyperemia (CH) by Grade
percentage of eyesPRO-174Sophixín Ofteno®
normal96.792.9
very mild3.30
Mild00
moderate07.1
severo00
Statistical analysis
  • PRO-174 vs Sophixín Ofteno® · Chi-squared · p = 0.213
SecondaryNumber of Eyes With Foreign Body Sensation (FBS) by Grade

Foreign body sensation is a nominal variable that will be evaluated by direct questioning to the research subject, then it will be staged according to the following scale: Severity: Absent, very mild, mild, moderate and severe, where the normality of severity is absent.

Time frame:
will be evaluated at the end of the treatment at the final visit (day 7)
Reported as:
Number · eyes
Number of Eyes With Foreign Body Sensation (FBS) by Grade
eyesPRO-174Sophixín Ofteno®
Absent3028
Very mild00
Mild00
Moderate00
Severe00
SecondaryNumber of Eyes With Ocular Pruritus (P) by Grade

Ocular pruritus is a nominal variable that will be evaluated by direct questioning to the research subject, then it will be staged according to the following scale: Severity: Absent, very mild, mild, moderate and severe, where the normality of severity is absent.

Time frame:
will be evaluated at the end of the treatment at the final visit (day 7)
Reported as:
Number · number of eyes with Ocular pruritus
Number of Eyes With Ocular Pruritus (P) by Grade
number of eyes with Ocular pruritusPRO-174Sophixín Ofteno®
Absent2424
Very mild42
Mild22
Moderate00
Severe00
Statistical analysis
  • PRO-174 vs Sophixín Ofteno® · Chi-squared, Corrected · p = 0.741
SecondaryNumber of Eyes of Chemosis

The chemosis will be evaluated, as a nominal variable, by direct observation and it will be staged as present and absent, where the normality is that said variable is absent.

Time frame:
will be evaluated at the end of the treatment at the final visit (day 7)
Reported as:
Number · eyes
Number of Eyes of Chemosis
eyesPRO-174Sophixín Ofteno®
Number of Eyes of Chemosis00
SecondaryVisual Capacity

The visual capacity variable will be reported using as a unit of measure a fraction, this is taken from a visual test with the Snellen primer, it is a Nominal type variable. where the optimal vision is 20/20 and higher scores indicate worse visual acuity. Snellen Scale: 20/200, 20/100, 20/70, 20/50, 20/40, 20/30, 20/25, 20/20, 20/15, 20/12, 20/10 only the denominator of the fraction of each case is reported and averaged per group.

Time frame:
will be evaluated at the end of the treatment at the final visit (day 7)
Reported as:
Mean · units on a scale (snellen)
Visual Capacity
units on a scale (snellen)PRO-174Sophixín Ofteno®
Visual Capacity20.6 ± 2.1720 ± 0
Statistical analysis
  • PRO-174 vs Sophixín Ofteno® · Wilcoxon (Mann-Whitney) · p = 0.110

Adverse events

Collected over the adverse events were evaluated for a period of 13 days, from the baseline visit (day one) until the safety call three days after the last application of the study medication (day 13). MedDRA (V. 20.1). Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
PRO-1740/15 (0%)0/15 (0%)9/15 (60%)
Sophixín Ofteno®0/15 (0%)0/15 (0%)8/15 (53.3%)
Most frequent other events
Most frequent other events
EventPRO-174Sophixín Ofteno®
ocular burningEye disorders5/157/15
itching in the eyeEye disorders3/151/15
skin rashMusculoskeletal and connective tissue disorders2/150/15
allergic rhinitisRespiratory, thoracic and mediastinal disorders0/151/15
conjunctival hyperemiaEye disorders1/150/15
tearingEye disorders0/151/15

Baseline characteristics

ophthalmologically and clinically healthy

Age, Continuous
Age, Continuous(years)PRO-174Sophixín Ofteno®Total
Mean23.67 ± 4.1528.93 ± 9.3826.3 ± 6.77
Sex: Female, Male
Sex: Female, Male(Participants)PRO-174Sophixín Ofteno®Total
Female91019
Male6511
Race (NIH/OMB)
Race (NIH/OMB)(Participants)PRO-174Sophixín Ofteno®Total
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American000
White000
More than one race151530
Unknown or Not Reported000
Region of Enrollment
Region of Enrollment(Participants)PRO-174Sophixín Ofteno®Total
Mexico151530
08

Study locations

1 site
  • Private Medical Offices
    Guadalajara, Jalisco 44650, Mexico
09

References and documents

Publications

  • Munoz-Villegas P, Navarro-Sanchez AA, Sanchez-Rios A, Olvera-Montano O, Baiza-Duran LM. Reexamining Ophthalmic Drugs, Safety and Tolerability in Phase 1 Clinical Trials. Ther Clin Risk Manag. 2021 Oct 21;17:1123-1134. doi: 10.2147/TCRM.S331294. eCollection 2021. PubMed 34707360 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Jan 2018 to primary completion in May 2018, 4 months.

Results were first posted in Oct 2019, 1 year 5 months after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 26, 2018
First posted
May 9, 2018
StartActual
Jan 25, 2018
Primary completionActual
May 25, 2018
CompletionActual
Jun 10, 2018
Results first posted
Oct 25, 2019
Last update
Oct 25, 2019
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Oct 25, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03519516
Responsible party
Sponsor
First posted
May 9, 2018
Start date
Jan 25, 2018
Primary completion
May 25, 2018
Completion
Jun 10, 2018
Results posted
Oct 25, 2019
Last update
Oct 25, 2019

Study contacts

Leopoldo Baiza Durán, MD
study director · Laboratorios Sophia S.A de C.V.

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Levofloxacin

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