Study to Evaluate Safety, Tolerability & PK of rhNGF in Healthy Volunteers

• Sponsor: Dompé Farmaceutici S.p.A (Industry)
• Overall Status: Completed
• CT.gov ID: NCT03836859
• Collaborator: Cromsource (Industry)
• Enrollment: 30
• Location: 1
• Arms: 2
• Actual Duration (Months): 2.1
• Patients Per Site Per Month: 14.5

Study Details

Study Description

Brief Summary

The primary objective of this study is to assess the safety and tolerability of a single short-term and a multiple dose scheme of rhNGF when administered as eye drops in healthy subjects of Japanese ethnicity.

The secondary objective of this study is to assess the pharmacokinetics of single and multiple doses of rhNGF when administered as eye drops in healthy subjects of Japanese ethnicity.

Condition or Disease	Intervention/Treatment	Phase
Healthy Volunteers	Drug: rhNGF 20μg/mL; Other: Placebo	Phase 1

Detailed Description

This is a Phase I, randomized, double-masked, placebo-controlled eye drops administration study of rhNGF in healthy male and female subjects of Japanese Ethnicity to evaluate the Safety, Tolerability and Pharmacokinetics of Recombinant Human Nerve Growth Factor Eye Drops (rhNGF 20 μg/mL -formulation containing L-methionine as excipient) versus vehicle (vehicle control containing L-methionine as excipient) in Healthy Male and Female Volunteers of

Japanese Ethnicity. The IMP was administered in the study Eye with the following scheme:

Day 1: One drop instilled into study eye (35 μL, corresponding to 0.70 μg of rhNGF).

Day 2, 3, 4, 5, 6: One drop six times a day (every 2h) into study eye (210 μL, corresponding to 4.20 μg of rhNGF).

Total dose in the study eye will be 31 drops (1085 μL, equivalent to 21.7 μg rhNGF) over 6 days.

The reference product (vehicle) was administered in the study eye with the following scheme:

Day 1: One drop instilled into study eye (35 μL, corresponding to 0 μg of rhNGF].

Day 2, 3, 4, 5, 6: One drop six times a day (every 2h) into study eye (210 μL, corresponding to 0 μg of rhNGF).

A total dose of placebo vehicle in the study eye will be 31 drops (1085 μL, 0 μg rhNGF) over 6 days.

For the Fellow (Non-Study) Eye for all subjects, the scheme was the following:

Day 1: One drop instilled into a fellow eye (35 μL, corresponding to 0 μg of rhNGF).

Day 2, 3, 4, 5, 6: One drop six times a day (every 2h) into a fellow eye (210 μL, corresponding to 0 μg of rhNGF).

A total dose of placebo vehicle in the fellow eye will be 31 drops (1085 μL, 0 μg rhNGF) over 6 days.

Study Design

• Study Type: Interventional
• Actual Enrollment: 30 participants
• Allocation: Randomized
• Intervention Model: Parallel Assignment
• Intervention Model Description: Parallel assignmentParallel assignment
• Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
• Masking Description: Quadruple (subject, Investigator, site staff and Sponsor's clinical research personnel)
• Primary Purpose: Treatment
• Official Title: Phase I, Randomized, Double-masked, Placebo-controlled Study (6 Days) to Evaluate the Safety, Tolerability and Pharmacokinetics of Recombinant Human Nerve Growth Factor Eye Drops in Healthy Male and Female Volunteers of Japanese Ethnicity
• Actual Study Start Date: Mar 30, 2018
• Actual Primary Completion Date: Jun 1, 2018
• Actual Study Completion Date: Jun 1, 2018

Arms and Interventions

Arm	Intervention/Treatment
Experimental: rhNGF 20μg/mL rhNGF 20μg/mL eye drop solution, formulation containing L-methionine as excipient.	Drug: rhNGF 20μg/mL; Study Eye (For subjects randomized to rhNGF group) Day 1: One drop instilled into study eye (35 μL, corresponding to 0.70 μg of rhNGF). Day 2, 3, 4, 5, 6: One drop six times a day (every 2h) into study eye (210 μL, corresponding to 4.20 μg of rhNGF). Total dose in the study eye will be 31 drops (1085 μL, equivalent to 21.7 μg rhNGF) over 6 days.; Other Names: cenegermin
Placebo Comparator: Placebo Vehicle: formulation containing L-methionine as excipient.	Other: Placebo; Vehicle: formulation containing L-methionine as excipient.

Outcome Measures

Primary Outcome Measures

1. Number of Treatment Emergent Adverse Events (TEAEs). [On Day 1 (single dose scheme), Days 2-6 (multiple dose scheme), Day 7 (Follow-up [FU] 1), Day 8 (FU 2); Day 16 (FU 3), and Day 35-42 (FU 4)]

   TEAEs were defined as an adverse event (AE), which started after the first dose of study treatment. These comprise AEs during the treatment and follow-up period. For TEAE the number of events was provided.

2. Number of Treatment Emergent Adverse Events During First Dose Schedule (TEAEs Dose 1). [During first dose schedule (TEAE Dose 1, which started after first dose of study treatment at Day 1 till before administration of the first dose at Treatment Day 2)]

   TEAEs Dose 1 were defined as TEAEs, which started after the first dose of study treatment and before administration of the first dose at Treatment Day 2. For TEAE the number of events was provided.

3. Number of Treatment Emergent Adverse Events During Second Dose Schedule (TEAEs Dose 2). [During second dose schedule (TEAE Dose 2, which started on/after the first dose at Treatment Day 2 till before Follow-Up Day 7 (FU1) visit]

   TEAEs Dose 2 were defined as TEAEs, which started on/after the first dose at Treatment Day 2 and before Follow-Up Day 7 visit.

4. Change From Baseline in Visual Analogue Scale (VAS) Ocular Tolerability Score in Study Eye: Single Dose [at Treatment Day 2 pre-dose]

   Change from baseline in VAS ocular tolerability score in study eye at Treatment Day 2 predose (Tolerability of 1x0.70 μg rhNGF per day) for overall is presented. In this context, "Baseline" was defined as the pre-treatment assessment at the Baseline (D-1) visit. A ocular tolerability score was determined using a 100 mm VAS on which 0 meant No symptoms and 100 meant the Worst possible discomfort. The patients subjectively evaluated their ocular symptoms (foreign body sensation, burning or stinging, itching, pain, sticky feeling, blurred vision and photophobia) using the VAS giving the value they were feeling from none to an extreme value. The ocular symptoms were evaluated by the patients through the scale.

5. Change From Baseline in Visual Analogue Scale (VAS) Ocular Tolerability Score in Study Eye: Multiple Dose [at Day 2 8h, Day 3 predose, Day 6 pre-dose, Day 6 8h, Day 7 (FU1), Day 8 (FU2), Day 16 (FU3)]

   Change from baseline in VAS ocular tolerability score in study eye at Day 2 8h, Day 3 predose, Day 6 pre-dose, Day 6 8h, Day 7 (FU1), Day 8 (FU2), Day 16 (FU3) (Tolerability of 6x0.70 μg rhNGF per day) for overall is presented. In this context, "Baseline" was defined as the pre-treatment assessment at the Baseline (D-1) visit.A ocular tolerability score was determined using a 100 mm VAS on which 0 meant No symptoms and 100 meant the Worst possible discomfort. The patients subjectively evaluated their ocular symptoms (foreign body sensation, burning or stinging, itching, pain, sticky feeling, blurred vision and photophobia) using the VAS giving the value they were feeling from none to an extreme value. The ocular symptoms were evaluated by the patients through the scale.

Secondary Outcome Measures

1. Number of Follow-Up AEs (FUAE) [on or after Follow-Up Day 7 (FU1)]

   Follow-Up AEs (FUAE) were defined as TEAEs which start on or after Follow-Up Day 7 (FU1) visit

2. Number of Ocular TEAEs by Eyes [On Day 1 (single dose scheme), Days 2-6 (multiple dose scheme), Day 7 (Follow-up [FU] 1), Day 8 (FU 2); Day 16 (FU 3), and Day 35-42 (FU 4)]

   Ocular TEAEs were defined as an adverse event (AE) interesting the study or the non-study eye, which started after the first dose of study treatment. These comprise ocular AEs during the treatment and follow-up period. For these AE, the number of events was provided for the study eye and the non-study eye, separately.

3. Change From Baseline in Intraocular Pressure (IOP) by Eye Over All Visits [on Day -1 and at Day 8 (Follow up [FU] 2) and Day 16 (FU3)]

   IOP was performed using either Goldmann applanation tonometry after the instillation of a topical anaesthetic. IOP was measured in both eyes after completion of all other slit lamp examinations to avoid potential interference with the other evaluations.

4. Change From Baseline in Visual Acuity Score for the Study Eye Over All Visits [On Day 1 (single dose scheme), Days 2,3,6 (multiple dose scheme), Day 7 (Follow-up [FU] 1), Day 8 (FU 2); Day 16 (FU 3)]

   Values of Best-Corrected Distance Visual Acuity (BCDVA) scores were measured using the Early Treatment Diabetic Retinopathy Study (ETDRS) score. The ETDRS charts use letters, or a geometric progression in letter size from line to line, under standardized lighting conditions. The patient starts at the top of the chart, or on the last row where he or she can read all of the letters, and reads down the chart until he or she reaches a row where a minimum of three letters on a line cannot be read. The patient is scored by how many letters could be correctly identified. Therefore, the higher the number of letters the higher the visual acuity. Changes in the ETDRS score from baseline are summarised for the study eye.

5. Change in Baseline in LogMAR [Derived as - Log (Snellen Equivalent Result)] for the Study Eye Over All Visits. [On Day 1 (single dose scheme), Days 2,3,6 (multiple dose scheme), Day 7 (Follow-up [FU] 1), Day 8 (FU 2); Day 16 (FU 3)]

   LogMAR is the logarithm of the minimal angle of resolution. The LogMAR was derived as - log (Snellen Equivalent result). LogMAR values range from 1.6 (20/800 Snellen Equivalent) to -0.2 (20/12 Snellen Equivalent). The lower the LogMAR value, the better the visual acuity.

6. Change From Baseline in Tear Film Break-Up Time (TFBUT) for the Study Eye Over All Visits.. [On Day 1 (single dose scheme), Days 2,3,6 (multiple dose scheme), Day 7 (Follow-up [FU] 1), Day 8 (FU 2); Day 16 (FU 3)]

   The TFBUT was performed after instillation of 5 μl of 2% preservative-free sodium fluorescein solution into the inferior conjunctival cul-de-sac of each eye. With the aid of a slit lamp at 10X magnification using cobalt blue illumination, the examiner will monitor the integrity of the tear film, noting the time it takes to form lacunae (clear spaces in the tear film) from the time that the eye is opened after the last blink. The range of TFBUT normality in this trial is > 8' to 12' in either eye at screening or baseline. The longer the time the better the integrity of the tear film.

7. Change From Baseline in Overall National Eye Institute (NEI) Score for the Study Eye Over All Visits. [On Day 1 (single dose scheme), Days 2,3,6 (multiple dose scheme), Day 7 (Follow-up [FU] 1), Day 8 (FU 2); Day 16 (FU 3)]

   Corneal Staining was derived as the sum of scores of the five corneal sectors (central, superior, inferior, nasal, and temporal) each of which was scored on a scale of 0-3, with a minimum score of 0 and a maximal score of 15 (sum > 3 out of 15 is abnormal).

8. Course of Visual Analogue Scale (VAS) Ocular Tolerability Score for the Study Eye Over All Visits. [On Day 1 (single dose scheme), Days 2,3,6 (multiple dose scheme), Day 7 (Follow-up [FU] 1), Day 8 (FU 2); Day 16 (FU 3)]

   The course of VAS ocular tolerability score by eye over all visits was assessed. Only data "Overall" for study's eye are reported hereunder. A ocular tolerability score was determined using a 100 mm VAS on which 0 meant No symptoms and 100 meant the Worst possible discomfort. The patients subjectively evaluated their ocular symptoms (foreign body sensation, burning or stinging, itching, pain, sticky feeling, blurred vision and photophobia) using the VAS giving the value they were feeling from none to an extreme value. The ocular symptoms were evaluated by the patients through the scale.

9. Intraindividual Change in VAS Ocular Tolerability Scores Between Study Eye and Fellow (Non-study) Eye at All Study Visits [On Day 1 (single dose scheme), Days 2,3,6 (multiple dose scheme), Day 7 (Follow-up [FU] 1), Day 8 (FU 2); Day 16 (FU 3)]

   Intraindividual differences between study eye and non-study (fellow) eye at all study visits were assessed. Data "overall" are reported hereunder.A ocular tolerability score was determined using a 100 mm VAS on which 0 meant No symptoms and 100 meant the Worst possible discomfort. The patients subjectively evaluated their ocular symptoms (foreign body sensation, burning or stinging, itching, pain, sticky feeling, blurred vision and photophobia) using the VAS giving the value they were feeling from none to an extreme value. The ocular symptoms were evaluated by the patients through the scale.

10. Kinetics of rhNGF Plasma Levels After Single-dose Administration and Multiple-dose Administration Through Enzyme-Linked Immunosorbent Assay I (ELISA I) [Day 1 (Pre-Dose, 0.5, 2, 4, 8, 9, 10, 11, 12, 14, 16 hr) and Day 2 (Pre-Dose, 0.5, 2, 4, 6, 8, 10, 10.5, 11, 12, 13, 14, 16 hr),]

    Time points for rhNGF plasma levels measurement were the following: Day 1 (Pre-Dose, 0.5, 2, 4, 8, 9, 10, 11, 12, 14, 16 hr), Day 2 (Pre-Dose, 0.5, 2, 4, 6, 8, 10, 10.5, 11, 12, 13, 14, 16 hr), Day 3 (Pre-Dose, 2, 4, 6, 8, 10 hr), Day 4 Pre-Dose, Day 5 Pre-Dose, Day 6 (Pre-Dose, 4, 8, 10, 10.5, 11, 12, 13, 14, 16 hr), FU 1 0 hr, FU 2 (0 and 8 hr), and FU 3 0 hr. Values are reported for the single-dose regimen (Day 1) and the first day of the multiple-dose regimen (Day 2). From Day 1, most values were below the detectable level (i.e. <32 pg/ml). Values below this value are reported as not applicable (NA).

11. Kinetics of rhNGF Plasma Levels After Single-dose Administration and Multiple-dose Administration Through Enzyme-Linked Immunosorbent Assay II (ELISA II) [Day 1 (Pre-Dose, 0.5, 2, 4, 8, 9, 10, 11, 12, 14, 16 hr) and Day 2 (Pre-Dose, 0.5, 2, 4, 8, 9, 10, 10.5, 11, 12, 13, 14, 16 hr)]

    Time points for rhNGF plasma levels measurement were the following: Day 1 (Pre-Dose, 0.5, 2, 4, 8, 9, 10, 11, 12, 14, 16 hr), Day 2 (Pre-Dose, 0.5, 2, 4, 6, 8, 10, 10.5, 11, 12, 13, 14, 16 hr), Day 3 (Pre-Dose, 2, 4, 6, 8, 10 hr), Day 4 Pre-Dose, Day 5 Pre-Dose, Day 6 (Pre-Dose, 4, 8, 10, 10.5, 11, 12, 13, 14, 16 hr), FU 1 0 hr, FU 2 (0 and 8 hr), and FU 3 0 hr. Values are reported for the single-dose regimen (Day 1) and the first day of the multiple-dose regimen (Day 2). From Day 1, most values were below the detectable level (i.e. <15 pg/ml). Values below this value are reported as not applicable (NA).

Eligibility Criteria

Criteria

• Ages Eligible for Study: 18 Years to 60 Years
• Sexes Eligible for Study: All
• Accepts Healthy Volunteers: Yes

Inclusion Criteria:

To be eligible for inclusion into this study, each subject must fulfil the following inclusion criteria.Each subject must meet all of the following inclusion criteria at the pre-study Screening visit (within 20 days prior to admission in the Unit for the dosing period) in order to participate in this study.

1. Male or female subjects of Japanese ethnicity, aged between 18 and 60 years inclusive, who must have all four Japanese grandparents who were born in Japan.

2. Subject has to be able to communicate well with the investigator, understands and complies with the requirements of the study, and understands and signs the written volunteer informed consent form.

3. Subject's systemic and ocular medical history must be considered normal in the opinion of the investigator at the Screening and Baseline visits.

4. Subject with Best corrected distance visual acuity (BCDVA) score ≥83 ETDRS letters, ≤ 0.00 LogMAR [20/20 Snellen or 1.0 decimal fraction] in each eye at the Screening and Baseline visits.

5. Normal anterior segment on external and slit lamp examination in both eyes at the Screening and Baseline visits.

6. Normal posterior segment on fundus ophthalmoscopic examination in both eyes at the Screening and Baseline visits.

7. Subject must be considered in good systemic health in the opinion of the investigator at the Screening and Baseline visits, as determined by:

8. Subject's body mass index is between 18.5 and 30.4 kg/m2 inclusive

9. A pre-study physical examination with no clinically significant abnormalities.

10. Vital signs within clinically acceptable ranges for the purposes of the study (sitting systolic blood pressure [BP] ≥ 90 mmHg and ≤ 150 mmHg; diastolic BP ≥ 50 mmHg and ≤ 95 mmHg; heart rate ≥ 40 and ≤ 100 beats per minute; oral body temperature ≥ 35.5°C and ≤ 37.5°C).

11. An ECG with no clinically significant abnormalities.

12. Pre-study clinical laboratory findings within normal range or not deemed clinically significant in the opinion of the investigator if outside of the normal range

13. Woman subject who meets the criteria for post-menopausal stage (post menopause is defined as the period following peri-menopause, i.e. postmenopausal after 12 months without a menstrual period and with a serum FSH value within the reference range for postmenopausal females at Screening) or permanently sterilised (e.g. tubal occlusion, hysterectomy, bilateral salpingectomy) or woman subject using oral, injected or implanted hormonal methods of contraception or with a double barrier methods of contraception: condom and occlusive cap (diaphragm or cervical/vault caps) with spermicidal foam/gel/film/cream/suppository. A female condom and a male condom should not be used together as friction between the two can result in either product failing.

14. Male subjects with female partners of child-bearing potential must use 2 different forms of highly effective contraception throughout the study and for a further 3 months after the follow-up visit and all male subjects must be willing to avoid donating sperm during this time. The following methods of contraception are considered to be highly effective: established use of oral, injected or implanted hormonal contraception; placement of an intrauterine device or intrauterine system; use of a barrier method of contraception (condom or occlusive cap with use of a spermicide); male sterilisation (post-vasectomy documentation of the absence of sperm in the ejaculate must be provided).

Exclusion Criteria:

Subjects meeting any of the following criteria at Screening will be excluded from entry into the study:

1. Subject has had a clinically significant illness in the 6 weeks before screening in the opinion of the investigator.

2. Subject is not suitable to participate in the study in the opinion of the investigator

3. Subject has participated in any clinical study with an investigational drug/device within 3 months prior to the first day of dosing.

4. Subject has had a serious adverse reaction or significant hypersensitivity to any drug or chemically related compounds or has a clinically significant allergy to drugs, foods or other materials (in the opinion of the investigator).

5. Administration of any topical ocular (prescription or over the counter including artificial tears) or systemic medication including herbal product or fish oil preparations within 14 days before the first dose of study drug. Vitamins and mineral supplements not containing other substances are allowed until 96 hours before each dose if considered by the Investigator unlikely to interfere with the study results. Paracetamol at doses of at most 2 grams per day and ibuprofen at doses of at most 1200 mg per day for no more than 3 consecutive days or 6 non-consecutive days are allowed. Oral, injectable and implantable hormonal contraceptives are allowed without restrictions for female subjects. Longer exclusion periods apply for:

6. amiodarone and hydroxychloroquine (210 days),

7. monoclonal antibodies/ immunoglobulins/ other therapeutic proteins (120 days)

8. Experimental drugs with a half life known to the Study Unit: Five half lives plus 2 weeks

9. Experimental drugs with a half-life unknown to the Study Unit: 120 days

10. chloroquine and flunarizine (100 days)

11. fluoxetine (75 days),

12. benzodiazepines different from midazolam, lorazepam and triazolam, chlorpromazine, mephenytoin, nortryptyline, phenobarbital, primidone, carbamazepine, phenytoin and phenprocoumon (35 days).

13. Subject has a significant history of drug/solvent abuse or a positive drugs of abuse test at any time during the study.

14. Subject has a history of alcohol abuse or currently drinks in excess of 28 units per week or has a positive alcohol breath test at any time during the study.

15. Subject is a smoker or has smoked in the 6 months prior to dosing.

16. Subject who has a positive human immunodeficiency virus (HIV) screen, hepatitis B screen or hepatitis C screen.

17. Subject has donated blood or blood products (e.g., plasma or platelets) within the 3 months prior to screening.

18. Subject has a partner who will be pregnant or breastfeeding during the study

19. Pregnant or breastfeeding female or those with a positive pregnancy test or who will not use a medically acceptable contraceptive method from selection and during the study

20. Subject having used corticosteroid sporadically in the last 30 days whichever the route of administration, or any medication by ocular or nasal administration route

21. Subjects diagnosed with any ocular disease other than refractive error

22. Subject with history of ocular surgery, including laser refractive surgery

23. Subject using a contact lens within 7 days prior administration of the first dose

24. Intraocular pressure (IOP) ≥ 22 mmHg in either eye at screening or baseline

25. Presence of any corneal opacity or corneal fluorescein staining >0.5 grade using the modified Oxford scale in either eye at screening or baseline

26. Schirmer's test without anesthesia ≤ 9 mm/5 minutes in either eye at screening or baseline

27. Tear film break up time (TFBUT) < 8 seconds in either eye at screening or baseline Note: Alcoholic beverages should not be taken from 48 h before first drug administration until discharge from the Study center.

Contacts and Locations

Locations

	Site	City	State	Country	Postal Code
1	WCCT Global	Cypress	California	United States	90630

Sponsors and Collaborators

• Dompé Farmaceutici S.p.A
• Cromsource

Investigators

• Study Director: Flavio Mantelli, MD, PhD, Dompé SpA Milan

Study Documents (Full-Text)

• Study Protocol - Jan 26, 2018
• Statistical Analysis Plan - Sep 27, 2018

More Information

Publications

None provided.

• Responsible Party: Dompé Farmaceutici S.p.A
• ClinicalTrials.gov Identifier: NCT03836859
• Other Study ID Numbers: NGF0117
• First Posted: Feb 11, 2019
• Last Update Posted: Jun 11, 2020
• Last Verified: May 1, 2020

• Studies a U.S. FDA-regulated Drug Product: Yes
• Studies a U.S. FDA-regulated Device Product: No
• Keywords provided by Dompé Farmaceutici S.p.A: Tolerability and PK

Study Results

Participant Flow

Arm/Group Title	rhNGF 20μg/mL	Placebo
Arm/Group Description	rhNGF 20μg/mL eye drop solution, formulation containing L-methionine as excipient. rhNGF 20μg/mL: Study Eye (For subjects randomized to rhNGF group) Day 1: One drop instilled into study eye (35 μL, corresponding to 0.70 μg of rhNGF). Day 2, 3, 4, 5, 6: One drop six times a day (every 2h) into study eye (210 μL, corresponding to 4.20 μg of rhNGF). Total dose in the study eye will be 31 drops (1085 μL, equivalent to 21.7 μg rhNGF) over 6 days.	Vehicle: formulation containing L-methionine as excipient. Placebo: Vehicle: formulation containing L-methionine as excipient.
Period Title: Overall Study
STARTED	20	10
COMPLETED	20	10
NOT COMPLETED	0	0

Baseline Characteristics

Arm/Group Title	rhNGF 20μg/mL	Placebo	Total
Arm/Group Description	rhNGF 20μg/mL eye drop solution, formulation containing L-methionine as excipient. rhNGF 20μg/mL: Study Eye (For subjects randomized to rhNGF group) Day 1: One drop instilled into study eye (35 μL, corresponding to 0.70 μg of rhNGF). Day 2, 3, 4, 5, 6: One drop six times a day (every 2h) into study eye (210 μL, corresponding to 4.20 μg of rhNGF). Total dose in the study eye will be 31 drops (1085 μL, equivalent to 21.7 μg rhNGF) over 6 days.	Vehicle: formulation containing L-methionine as excipient. Placebo: Vehicle: formulation containing L-methionine as excipient.	Total of all reporting groups
Overall Participants	20	10	30
Age (Count of Participants)
<=18 years	0 0%	0 0%	0 0%
Between 18 and 65 years	20 100%	10 100%	30 100%
>=65 years	0 0%	0 0%	0 0%
Age (years) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [years]	40.5 (10.82)	33.1 (9.69)	38.0 (10.87)
Sex: Female, Male (Count of Participants)
Female	9 45%	4 40%	13 43.3%
Male	11 55%	6 60%	17 56.7%
Ethnicity (NIH/OMB) (Count of Participants)
Hispanic or Latino	0 0%	0 0%	0 0%
Not Hispanic or Latino	20 100%	10 100%	30 100%
Unknown or Not Reported	0 0%	0 0%	0 0%
Region of Enrollment (participants) [Number]
United States	20 100%	10 100%	30 100%

Outcome Measures

1. Primary Outcome

Title	Number of Treatment Emergent Adverse Events (TEAEs).
Description	TEAEs were defined as an adverse event (AE), which started after the first dose of study treatment. These comprise AEs during the treatment and follow-up period. For TEAE the number of events was provided.
Time Frame	On Day 1 (single dose scheme), Days 2-6 (multiple dose scheme), Day 7 (Follow-up [FU] 1), Day 8 (FU 2); Day 16 (FU 3), and Day 35-42 (FU 4)

Outcome Measure Data

Analysis Population Description

The safety population is represented by randomized subjects who received a dose of study medication in at least one eye. All 30 randomized subjects were included in the Safety population.

Arm/Group Title	rhNGF 20μg/mL	Placebo
Arm/Group Description	rhNGF 20μg/mL eye drop solution, formulation containing L-methionine as excipient. rhNGF 20μg/mL: Study Eye (For subjects randomized to rhNGF group) Day 1: One drop instilled into study eye (35 μL, corresponding to 0.70 μg of rhNGF). Day 2, 3, 4, 5, 6: One drop six times a day (every 2h) into study eye (210 μL, corresponding to 4.20 μg of rhNGF). Total dose in the study eye will be 31 drops (1085 μL, equivalent to 21.7 μg rhNGF) over 6 days.	Vehicle: formulation containing L-methionine as excipient. Placebo: Vehicle: formulation containing L-methionine as excipient.
Measure Participants	20	10
Number [events]	27	9

2. Primary Outcome

Title	Number of Treatment Emergent Adverse Events During First Dose Schedule (TEAEs Dose 1).
Description	TEAEs Dose 1 were defined as TEAEs, which started after the first dose of study treatment and before administration of the first dose at Treatment Day 2. For TEAE the number of events was provided.
Time Frame	During first dose schedule (TEAE Dose 1, which started after first dose of study treatment at Day 1 till before administration of the first dose at Treatment Day 2)

Outcome Measure Data

Analysis Population Description

The safety population is represented by randomized subjects who received a dose of study medication in at least one eye. All 30 randomized subjects were included in the Safety population.

Arm/Group Title	rhNGF 20μg/mL	Placebo
Arm/Group Description	rhNGF 20μg/mL eye drop solution, formulation containing L-methionine as excipient. rhNGF 20μg/mL: Study Eye (For subjects randomized to rhNGF group) Day 1: One drop instilled into study eye (35 μL, corresponding to 0.70 μg of rhNGF). Day 2, 3, 4, 5, 6: One drop six times a day (every 2h) into study eye (210 μL, corresponding to 4.20 μg of rhNGF). Total dose in the study eye will be 31 drops (1085 μL, equivalent to 21.7 μg rhNGF) over 6 days.	Vehicle: formulation containing L-methionine as excipient. Placebo: Vehicle: formulation containing L-methionine as excipient.
Measure Participants	20	10
Number [events]	3	2

3. Primary Outcome

Title	Number of Treatment Emergent Adverse Events During Second Dose Schedule (TEAEs Dose 2).
Description	TEAEs Dose 2 were defined as TEAEs, which started on/after the first dose at Treatment Day 2 and before Follow-Up Day 7 visit.
Time Frame	During second dose schedule (TEAE Dose 2, which started on/after the first dose at Treatment Day 2 till before Follow-Up Day 7 (FU1) visit

Outcome Measure Data

Analysis Population Description

The safety population is represented by randomized subjects who received a dose of study medication in at least one eye. All 30 randomized subjects were included in the Safety population.

Arm/Group Title	rhNGF 20μg/mL	Placebo
Arm/Group Description	rhNGF 20μg/mL eye drop solution, formulation containing L-methionine as excipient. rhNGF 20μg/mL: Study Eye (For subjects randomized to rhNGF group) Day 1: One drop instilled into study eye (35 μL, corresponding to 0.70 μg of rhNGF). Day 2, 3, 4, 5, 6: One drop six times a day (every 2h) into study eye (210 μL, corresponding to 4.20 μg of rhNGF). Total dose in the study eye will be 31 drops (1085 μL, equivalent to 21.7 μg rhNGF) over 6 days.	Vehicle: formulation containing L-methionine as excipient. Placebo: Vehicle: formulation containing L-methionine as excipient.
Measure Participants	20	10
Number [events]	16	4

4. Primary Outcome

Title	Change From Baseline in Visual Analogue Scale (VAS) Ocular Tolerability Score in Study Eye: Single Dose
Description	Change from baseline in VAS ocular tolerability score in study eye at Treatment Day 2 predose (Tolerability of 1x0.70 μg rhNGF per day) for overall is presented. In this context, "Baseline" was defined as the pre-treatment assessment at the Baseline (D-1) visit. A ocular tolerability score was determined using a 100 mm VAS on which 0 meant No symptoms and 100 meant the Worst possible discomfort. The patients subjectively evaluated their ocular symptoms (foreign body sensation, burning or stinging, itching, pain, sticky feeling, blurred vision and photophobia) using the VAS giving the value they were feeling from none to an extreme value. The ocular symptoms were evaluated by the patients through the scale.
Time Frame	at Treatment Day 2 pre-dose

Outcome Measure Data

Analysis Population Description

[Not Specified]

Arm/Group Title	rhNGF 20μg/mL	Placebo
Arm/Group Description	rhNGF 20μg/mL eye drop solution, formulation containing L-methionine as excipient. rhNGF 20μg/mL: Study Eye (For subjects randomized to rhNGF group) Day 1: One drop instilled into study eye (35 μL, corresponding to 0.70 μg of rhNGF). Day 2, 3, 4, 5, 6: One drop six times a day (every 2h) into study eye (210 μL, corresponding to 4.20 μg of rhNGF). Total dose in the study eye will be 31 drops (1085 μL, equivalent to 21.7 μg rhNGF) over 6 days.	Vehicle: formulation containing L-methionine as excipient. Placebo: Vehicle: formulation containing L-methionine as excipient.
Measure Participants	20	10
Mean (Standard Deviation) [score on a scale]	0.36 (1.325)	0.24 (0.410)

5. Primary Outcome

Title	Change From Baseline in Visual Analogue Scale (VAS) Ocular Tolerability Score in Study Eye: Multiple Dose
Description	Change from baseline in VAS ocular tolerability score in study eye at Day 2 8h, Day 3 predose, Day 6 pre-dose, Day 6 8h, Day 7 (FU1), Day 8 (FU2), Day 16 (FU3) (Tolerability of 6x0.70 μg rhNGF per day) for overall is presented. In this context, "Baseline" was defined as the pre-treatment assessment at the Baseline (D-1) visit.A ocular tolerability score was determined using a 100 mm VAS on which 0 meant No symptoms and 100 meant the Worst possible discomfort. The patients subjectively evaluated their ocular symptoms (foreign body sensation, burning or stinging, itching, pain, sticky feeling, blurred vision and photophobia) using the VAS giving the value they were feeling from none to an extreme value. The ocular symptoms were evaluated by the patients through the scale.
Time Frame	at Day 2 8h, Day 3 predose, Day 6 pre-dose, Day 6 8h, Day 7 (FU1), Day 8 (FU2), Day 16 (FU3)

Outcome Measure Data

Analysis Population Description

The safety population is represented by randomized subjects who received a dose of study medication in at least one eye. All 30 randomized subjects were included in the Safety population.

Arm/Group Title	rhNGF 20μg/mL	Placebo
Arm/Group Description	rhNGF 20μg/mL eye drop solution, formulation containing L-methionine as excipient. rhNGF 20μg/mL: Study Eye (For subjects randomized to rhNGF group) Day 1: One drop instilled into study eye (35 μL, corresponding to 0.70 μg of rhNGF). Day 2, 3, 4, 5, 6: One drop six times a day (every 2h) into study eye (210 μL, corresponding to 4.20 μg of rhNGF). Total dose in the study eye will be 31 drops (1085 μL, equivalent to 21.7 μg rhNGF) over 6 days.	Vehicle: formulation containing L-methionine as excipient. Placebo: Vehicle: formulation containing L-methionine as excipient.
Measure Participants	20	10
Day 2 - 8h	0.14 (0.882)	-0.09 (0.376)
Day 3 - predose	0.47 (0.673)	0.14 (0.559)
Day 6 - predose	1.60 (5.091)	0.17 (0.740)
Day 6 - 8h	1.85 (2.781)	-0.06 (0.358)
FUI1 - 0h	0.66 (3.828)	-0.13 (0.353)
FUI2 - 8h	0.40 (4.035)	-0.30 (0.474)
FUI3 - 0h	-0.23 (1.470)	-0.01 (0.389)

6. Secondary Outcome

Title	Number of Follow-Up AEs (FUAE)
Description	Follow-Up AEs (FUAE) were defined as TEAEs which start on or after Follow-Up Day 7 (FU1) visit
Time Frame	on or after Follow-Up Day 7 (FU1)

Outcome Measure Data

Analysis Population Description

The safety population is represented by randomized subjects who received a dose of study medication in at least one eye. All 30 randomized subjects were included in the Safety population.

Arm/Group Title	rhNGF 20μg/mL	Placebo
Arm/Group Description	rhNGF 20μg/mL eye drop solution, formulation containing L-methionine as excipient. rhNGF 20μg/mL: Study Eye (For subjects randomized to rhNGF group) Day 1: One drop instilled into study eye (35 μL, corresponding to 0.70 μg of rhNGF). Day 2, 3, 4, 5, 6: One drop six times a day (every 2h) into study eye (210 μL, corresponding to 4.20 μg of rhNGF). Total dose in the study eye will be 31 drops (1085 μL, equivalent to 21.7 μg rhNGF) over 6 days.	Vehicle: formulation containing L-methionine as excipient. Placebo: Vehicle: formulation containing L-methionine as excipient.
Measure Participants	20	10
Number [events]	8	3

7. Secondary Outcome

Title	Number of Ocular TEAEs by Eyes
Description	Ocular TEAEs were defined as an adverse event (AE) interesting the study or the non-study eye, which started after the first dose of study treatment. These comprise ocular AEs during the treatment and follow-up period. For these AE, the number of events was provided for the study eye and the non-study eye, separately.
Time Frame	On Day 1 (single dose scheme), Days 2-6 (multiple dose scheme), Day 7 (Follow-up [FU] 1), Day 8 (FU 2); Day 16 (FU 3), and Day 35-42 (FU 4)

Outcome Measure Data

Analysis Population Description

The safety population is represented by randomized subjects who received a dose of study medication in at least one eye. All 30 randomized subjects were included in the Safety population.

Arm/Group Title	rhNGF 20μg/mL	Placebo
Arm/Group Description	rhNGF 20μg/mL eye drop solution, formulation containing L-methionine as excipient. rhNGF 20μg/mL: Study Eye (For subjects randomized to rhNGF group) Day 1: One drop instilled into study eye (35 μL, corresponding to 0.70 μg of rhNGF). Day 2, 3, 4, 5, 6: One drop six times a day (every 2h) into study eye (210 μL, corresponding to 4.20 μg of rhNGF). Total dose in the study eye will be 31 drops (1085 μL, equivalent to 21.7 μg rhNGF) over 6 days.	Vehicle: formulation containing L-methionine as excipient. Placebo: Vehicle: formulation containing L-methionine as excipient.
Measure Participants	20	10
study eye	17	4
non-study eye	10	4

8. Secondary Outcome

Title	Change From Baseline in Intraocular Pressure (IOP) by Eye Over All Visits
Description	IOP was performed using either Goldmann applanation tonometry after the instillation of a topical anaesthetic. IOP was measured in both eyes after completion of all other slit lamp examinations to avoid potential interference with the other evaluations.
Time Frame	on Day -1 and at Day 8 (Follow up [FU] 2) and Day 16 (FU3)

Outcome Measure Data

Analysis Population Description

The safety population is represented by randomized subjects who received a dose of study medication in at least one eye. All 30 randomized subjects were included in the Safety population

Arm/Group Title	rhNGF 20μg/mL	Placebo
Arm/Group Description	rhNGF 20μg/mL eye drop solution, formulation containing L-methionine as excipient. rhNGF 20μg/mL: Study Eye (For subjects randomized to rhNGF group) Day 1: One drop instilled into study eye (35 μL, corresponding to 0.70 μg of rhNGF). Day 2, 3, 4, 5, 6: One drop six times a day (every 2h) into study eye (210 μL, corresponding to 4.20 μg of rhNGF). Total dose in the study eye will be 31 drops (1085 μL, equivalent to 21.7 μg rhNGF) over 6 days.	Vehicle: formulation containing L-methionine as excipient. Placebo: Vehicle: formulation containing L-methionine as excipient.
Measure Participants	20	10
Study eye - FU 2	-0.4 (2.70)	0.5 (1.51)
Study eye - FU 3	-0.4 (3.03)	-0.3 (2.75)
Non-study eye - FU 2	-0.8 (1.92)	-0.3 (1.49)
Non-study eye - FU 3	-0.5 (2.48)	-0.5 (2.17)

9. Secondary Outcome

Title	Change From Baseline in Visual Acuity Score for the Study Eye Over All Visits
Description	Values of Best-Corrected Distance Visual Acuity (BCDVA) scores were measured using the Early Treatment Diabetic Retinopathy Study (ETDRS) score. The ETDRS charts use letters, or a geometric progression in letter size from line to line, under standardized lighting conditions. The patient starts at the top of the chart, or on the last row where he or she can read all of the letters, and reads down the chart until he or she reaches a row where a minimum of three letters on a line cannot be read. The patient is scored by how many letters could be correctly identified. Therefore, the higher the number of letters the higher the visual acuity. Changes in the ETDRS score from baseline are summarised for the study eye.
Time Frame	On Day 1 (single dose scheme), Days 2,3,6 (multiple dose scheme), Day 7 (Follow-up [FU] 1), Day 8 (FU 2); Day 16 (FU 3)

Outcome Measure Data

Analysis Population Description

The safety population is represented by randomized subjects who received a dose of study medication in at least one eye. All 30 randomized subjects were included in the Safety population.

Arm/Group Title	rhNGF 20μg/mL	Placebo
Arm/Group Description	rhNGF 20μg/mL eye drop solution, formulation containing L-methionine as excipient. rhNGF 20μg/mL: Study Eye (For subjects randomized to rhNGF group) Day 1: One drop instilled into study eye (35 μL, corresponding to 0.70 μg of rhNGF). Day 2, 3, 4, 5, 6: One drop six times a day (every 2h) into study eye (210 μL, corresponding to 4.20 μg of rhNGF). Total dose in the study eye will be 31 drops (1085 μL, equivalent to 21.7 μg rhNGF) over 6 days.	Vehicle: formulation containing L-methionine as excipient. Placebo: Vehicle: formulation containing L-methionine as excipient.
Measure Participants	20	10
Day 1 - 8h	1.1 (3.03)	0.6 (2.76)
Day 2 - predose	0.5 (3.47)	0.4 (2.80)
Day 2 - 8h	1.8 (4.10)	2.1 (2.77)
Day 3 - predose	0.8 (3.27)	0.1 (3.87)
Day 6 - predose	1.6 (2.93)	2.0 (3.43)
Day 6 - 8h	1.4 (3.72)	2.5 (2.42)
FU1 - 0h	3.1 (3.62)	2.4 (1.90)
FU2 - 8h	2.3 (3.06)	1.5 (3.17)
FU3 - 0h	2.7 (3.59)	1.4 (3.81)

10. Secondary Outcome

Title	Change in Baseline in LogMAR [Derived as - Log (Snellen Equivalent Result)] for the Study Eye Over All Visits.
Description	LogMAR is the logarithm of the minimal angle of resolution. The LogMAR was derived as - log (Snellen Equivalent result). LogMAR values range from 1.6 (20/800 Snellen Equivalent) to -0.2 (20/12 Snellen Equivalent). The lower the LogMAR value, the better the visual acuity.
Time Frame	On Day 1 (single dose scheme), Days 2,3,6 (multiple dose scheme), Day 7 (Follow-up [FU] 1), Day 8 (FU 2); Day 16 (FU 3)

Outcome Measure Data

Analysis Population Description

The safety population is represented by randomized subjects who received a dose of study medication in at least one eye. All 30 randomized subjects were included in the Safety population.

Arm/Group Title	rhNGF 20μg/mL	Placebo
Arm/Group Description	rhNGF 20μg/mL eye drop solution, formulation containing L-methionine as excipient. rhNGF 20μg/mL: Study Eye (For subjects randomized to rhNGF group) Day 1: One drop instilled into study eye (35 μL, corresponding to 0.70 μg of rhNGF). Day 2, 3, 4, 5, 6: One drop six times a day (every 2h) into study eye (210 μL, corresponding to 4.20 μg of rhNGF). Total dose in the study eye will be 31 drops (1085 μL, equivalent to 21.7 μg rhNGF) over 6 days.	Vehicle: formulation containing L-methionine as excipient. Placebo: Vehicle: formulation containing L-methionine as excipient.
Measure Participants	20	10
Day 1 - 8 h	-0.025 (0.0547)	-0.019 (0.0757)
Day 2 - predose	-0.015 (0.0785)	0.010 (0.0536)
Day 2 - 8h	-0.043 (0.0731)	-0.055 (0.0478)
Day 3 - predose	-0.025 (0.0758)	-0.009 (0.0539)
Day 6 - predose	-0.034 (0.0576)	-0.037 (0.0475)
day 6 - 8h	-0.035 (0.0743)	-0.055 (0.0472)
FU 1 - 0h	-0.073 (0.0820)	-0.055 (0.0478)
FU2 - 8h	-0.049 (0.0684)	-0.018 (0.0594)
FU3 - 0h	-0.054 (0.0751)	-0.028 (0.0901)

11. Secondary Outcome

Title	Change From Baseline in Tear Film Break-Up Time (TFBUT) for the Study Eye Over All Visits..
Description	The TFBUT was performed after instillation of 5 μl of 2% preservative-free sodium fluorescein solution into the inferior conjunctival cul-de-sac of each eye. With the aid of a slit lamp at 10X magnification using cobalt blue illumination, the examiner will monitor the integrity of the tear film, noting the time it takes to form lacunae (clear spaces in the tear film) from the time that the eye is opened after the last blink. The range of TFBUT normality in this trial is > 8' to 12' in either eye at screening or baseline. The longer the time the better the integrity of the tear film.
Time Frame	On Day 1 (single dose scheme), Days 2,3,6 (multiple dose scheme), Day 7 (Follow-up [FU] 1), Day 8 (FU 2); Day 16 (FU 3)

Outcome Measure Data

Analysis Population Description

The safety population is represented by randomized subjects who received a dose of study medication in at least one eye. All 30 randomized subjects were included in the Safety population.

Arm/Group Title	rhNGF 20μg/mL	Placebo
Arm/Group Description	rhNGF 20μg/mL eye drop solution, formulation containing L-methionine as excipient. rhNGF 20μg/mL: Study Eye (For subjects randomized to rhNGF group) Day 1: One drop instilled into study eye (35 μL, corresponding to 0.70 μg of rhNGF). Day 2, 3, 4, 5, 6: One drop six times a day (every 2h) into study eye (210 μL, corresponding to 4.20 μg of rhNGF). Total dose in the study eye will be 31 drops (1085 μL, equivalent to 21.7 μg rhNGF) over 6 days.	Vehicle: formulation containing L-methionine as excipient. Placebo: Vehicle: formulation containing L-methionine as excipient.
Measure Participants	20	10
Day 1 - 8h1	-1.343 (2.0648)	-1.187 (1.5874)
Day 2 - predose	-1.370 (1.9129)	-1.227 (1.3582)
Day 2 - 8h	-1.000 (1.9806)	-1.761 (1.3983)
Day 3 - predose	-0.612 (2.4824)	0.344 (2.3712)
Day 6 - predose	-0.593 (2.5198)	-1.442 (1.6595)
Day 6 - 8h	-0.892 (2.0086)	-1.892 (1.5450)
FU1 - 0h	-0.768 (2.0851)	0.462 (1.3560)
FU2 - 8h	-0.610 (1.8211)	-0.655 (2.4522)
FU3 - 0h	-0.795 (2.1053)	-0.800 (1.4070)

12. Secondary Outcome

Title	Change From Baseline in Overall National Eye Institute (NEI) Score for the Study Eye Over All Visits.
Description	Corneal Staining was derived as the sum of scores of the five corneal sectors (central, superior, inferior, nasal, and temporal) each of which was scored on a scale of 0-3, with a minimum score of 0 and a maximal score of 15 (sum > 3 out of 15 is abnormal).
Time Frame	On Day 1 (single dose scheme), Days 2,3,6 (multiple dose scheme), Day 7 (Follow-up [FU] 1), Day 8 (FU 2); Day 16 (FU 3)

Outcome Measure Data

Analysis Population Description

The safety population is represented by randomized subjects who received a dose of study medication in at least one eye. All 30 randomized subjects were included in the Safety population.

Arm/Group Title	rhNGF 20μg/mL	Placebo
Arm/Group Description	rhNGF 20μg/mL eye drop solution, formulation containing L-methionine as excipient. rhNGF 20μg/mL: Study Eye (For subjects randomized to rhNGF group) Day 1: One drop instilled into study eye (35 μL, corresponding to 0.70 μg of rhNGF). Day 2, 3, 4, 5, 6: One drop six times a day (every 2h) into study eye (210 μL, corresponding to 4.20 μg of rhNGF). Total dose in the study eye will be 31 drops (1085 μL, equivalent to 21.7 μg rhNGF) over 6 days.	Vehicle: formulation containing L-methionine as excipient. Placebo: Vehicle: formulation containing L-methionine as excipient.
Measure Participants	20	10
Day 1 - 8h1	0.00 (0.00)	0.00 (0.00)
Day 2 - predose	0.5 (1.23)	0.5 (1.27)
Day 2 - 8h	0.1 (0.22)	0.0 (0.00)
Day 3 - predose	0.7 (1.79)	0.6 (1.90)
Day 6 - predose	0.4 (1.35)	0.0 (0.00)
Day 6 - 8h	0.0 (0.00)	0.0 (0.00)
FU1 - 0h	0.7 (1.42)	0.0 (0.00)
FU2 - 8h	0.1 (0.45)	0.0 (0.00)
FU3 - 0h	0.1 (0.45)	0.0 (0.00)

13. Secondary Outcome

Title	Course of Visual Analogue Scale (VAS) Ocular Tolerability Score for the Study Eye Over All Visits.
Description	The course of VAS ocular tolerability score by eye over all visits was assessed. Only data "Overall" for study's eye are reported hereunder. A ocular tolerability score was determined using a 100 mm VAS on which 0 meant No symptoms and 100 meant the Worst possible discomfort. The patients subjectively evaluated their ocular symptoms (foreign body sensation, burning or stinging, itching, pain, sticky feeling, blurred vision and photophobia) using the VAS giving the value they were feeling from none to an extreme value. The ocular symptoms were evaluated by the patients through the scale.
Time Frame	On Day 1 (single dose scheme), Days 2,3,6 (multiple dose scheme), Day 7 (Follow-up [FU] 1), Day 8 (FU 2); Day 16 (FU 3)

Outcome Measure Data

Analysis Population Description

The safety population is represented by randomized subjects who received a dose of study medication in at least one eye. All 30 randomized subjects were included in the Safety population.

Arm/Group Title	rhNGF 20μg/mL	Placebo
Arm/Group Description	rhNGF 20μg/mL eye drop solution, formulation containing L-methionine as excipient. rhNGF 20μg/mL: Study Eye (For subjects randomized to rhNGF group) Day 1: One drop instilled into study eye (35 μL, corresponding to 0.70 μg of rhNGF). Day 2, 3, 4, 5, 6: One drop six times a day (every 2h) into study eye (210 μL, corresponding to 4.20 μg of rhNGF). Total dose in the study eye will be 31 drops (1085 μL, equivalent to 21.7 μg rhNGF) over 6 days.	Vehicle: formulation containing L-methionine as excipient. Placebo: Vehicle: formulation containing L-methionine as excipient.
Measure Participants	20	10
Day 1 - 8h	0.46 (0.890)	0.09 (0.154)
Day 2 - predose	0.66 (1.739)	0.31 (0.461)
Day 2 - 8h	0.81 (1.703)	0.23 (0.358)
Day 3 - predose	1.14 (2.066)	0.46 (0.499)
Day 6 - predose	2.26 (5.132)	0.49 (0.661)
Day 6 - 8h	2.51 (7.089)	0.26 (0.268)
FU1 - 0h	1.32 (3.548)	0.19 (0.337)
FU2 - 8h	1.06 (3.727)	0.01 (0.045)
Fu3 - 0h	0.44 (0.578)	0.30 (0.428)

14. Secondary Outcome

Title	Intraindividual Change in VAS Ocular Tolerability Scores Between Study Eye and Fellow (Non-study) Eye at All Study Visits
Description	Intraindividual differences between study eye and non-study (fellow) eye at all study visits were assessed. Data "overall" are reported hereunder.A ocular tolerability score was determined using a 100 mm VAS on which 0 meant No symptoms and 100 meant the Worst possible discomfort. The patients subjectively evaluated their ocular symptoms (foreign body sensation, burning or stinging, itching, pain, sticky feeling, blurred vision and photophobia) using the VAS giving the value they were feeling from none to an extreme value. The ocular symptoms were evaluated by the patients through the scale.
Time Frame	On Day 1 (single dose scheme), Days 2,3,6 (multiple dose scheme), Day 7 (Follow-up [FU] 1), Day 8 (FU 2); Day 16 (FU 3)

Outcome Measure Data

Analysis Population Description

The safety population is represented by randomized subjects who received a dose of study medication in at least one eye. All 30 randomized subjects were included in the Safety population.

Arm/Group Title	rhNGF 20μg/mL	Placebo
Arm/Group Description	rhNGF 20μg/mL eye drop solution, formulation containing L-methionine as excipient. rhNGF 20μg/mL: Study Eye (For subjects randomized to rhNGF group) Day 1: One drop instilled into study eye (35 μL, corresponding to 0.70 μg of rhNGF). Day 2, 3, 4, 5, 6: One drop six times a day (every 2h) into study eye (210 μL, corresponding to 4.20 μg of rhNGF). Total dose in the study eye will be 31 drops (1085 μL, equivalent to 21.7 μg rhNGF) over 6 days.	Vehicle: formulation containing L-methionine as excipient. Placebo: Vehicle: formulation containing L-methionine as excipient.
Measure Participants	20	10
Day 1 - 8h	0.04 (0.258)	-0.06 (0.168)
Day 2 - predose	0.29 (1.024)	0.10 (0.286)
Day 2 - 8h	0.11 (0.560)	-0.07 (0.205)
Day 3 - predose	0.54 (1.412)	0.13 (0.519)
Day 6 - predose	1.16 (3.537)	0.27 (0.698)
Day 6 - 8h	2.03 (6.942)	-0.09 (0.303)
FU1 - 0h	0.72 (2.823)	0.04 (0.096)
FU2 - 8h	0.87 (3.697)	-0.03 (0.090)
FU3 - 0h	0.04 (0.346)	0.00 (0.243)

15. Secondary Outcome

Title	Kinetics of rhNGF Plasma Levels After Single-dose Administration and Multiple-dose Administration Through Enzyme-Linked Immunosorbent Assay I (ELISA I)
Description	Time points for rhNGF plasma levels measurement were the following: Day 1 (Pre-Dose, 0.5, 2, 4, 8, 9, 10, 11, 12, 14, 16 hr), Day 2 (Pre-Dose, 0.5, 2, 4, 6, 8, 10, 10.5, 11, 12, 13, 14, 16 hr), Day 3 (Pre-Dose, 2, 4, 6, 8, 10 hr), Day 4 Pre-Dose, Day 5 Pre-Dose, Day 6 (Pre-Dose, 4, 8, 10, 10.5, 11, 12, 13, 14, 16 hr), FU 1 0 hr, FU 2 (0 and 8 hr), and FU 3 0 hr. Values are reported for the single-dose regimen (Day 1) and the first day of the multiple-dose regimen (Day 2). From Day 1, most values were below the detectable level (i.e. <32 pg/ml). Values below this value are reported as not applicable (NA).
Time Frame	Day 1 (Pre-Dose, 0.5, 2, 4, 8, 9, 10, 11, 12, 14, 16 hr) and Day 2 (Pre-Dose, 0.5, 2, 4, 6, 8, 10, 10.5, 11, 12, 13, 14, 16 hr),

Outcome Measure Data

Analysis Population Description

PK-Set (PKS), defined as all subjects completing the PK sampling according to the study protocol and who did not show serious protocol deviations or non-compliance.

Arm/Group Title	rhNGF 20μg/mL	Placebo
Arm/Group Description	rhNGF 20μg/mL eye drop solution, formulation containing L-methionine as excipient. rhNGF 20μg/mL: Study Eye (For subjects randomized to rhNGF group) Day 1: One drop instilled into study eye (35 μL, corresponding to 0.70 μg of rhNGF). Day 2, 3, 4, 5, 6: One drop six times a day (every 2h) into study eye (210 μL, corresponding to 4.20 μg of rhNGF). Total dose in the study eye will be 31 drops (1085 μL, equivalent to 21.7 μg rhNGF) over 6 days.	Vehicle: formulation containing L-methionine as excipient. Placebo: Vehicle: formulation containing L-methionine as excipient.
Measure Participants	20	10
Day 1 - Pre-Dose	NA (94.16)	NA (NA)
Day 1 - 0.5 hr	NA (83.06)	NA (NA)
Day 1 - 2 hr	NA (66.73)	NA (NA)
Day 1 - 4 hr	35.69 (113.04)	NA (NA)
Day 1 - 8 hr	NA (63.34)	NA (NA)
Day 1 - 9 hr	NA (95.53)	NA (NA)
Day 1 - 10 hr	34.12 (94.85)	NA (NA)
Day 1 - 11 hr	NA (82.12)	NA (NA)
Day 1 - 12 hr	33.10 (110.96)	NA (NA)
Day 1 - 14 hr	NA (79.92)	NA (NA)
Day 1 - 16 hr	35.88 (117.91)	NA (NA)
Day 2 - Pre-Dose	33.87 (113.95)	NA (NA)
Day 2 - 0.5 hr	32.30 (108.85)	NA (NA)
Day 2 - 2 hr	NA (93.63)	1.02 (0)
Day 2 - 4 hr	NA (77.01)	NA (NA)
Day 2 - 6 hr	NA (83.02)	NA (NA)
Day 2 - 8 hr	NA (90.77)	NA (NA)
Day 2 - 10 hr	NA (90.40)	NA (NA)
Day 2 - 10.5 hr	34.68 (113.00)	NA (NA)
Day 2 - 11 hr	37.42 (120.37)	NA (NA)
Day 2 - 12 hr	32.22 (100.26)	NA (36.51)
Day 2 - 13 hr	NA (81.69)	NA (34.96)
Day 2 - 14 hr	NA (96.51)	NA (NA)
Day 2 - 16 hr	NA (101.13)	NA (NA)

16. Secondary Outcome

Title	Kinetics of rhNGF Plasma Levels After Single-dose Administration and Multiple-dose Administration Through Enzyme-Linked Immunosorbent Assay II (ELISA II)
Description	Time points for rhNGF plasma levels measurement were the following: Day 1 (Pre-Dose, 0.5, 2, 4, 8, 9, 10, 11, 12, 14, 16 hr), Day 2 (Pre-Dose, 0.5, 2, 4, 6, 8, 10, 10.5, 11, 12, 13, 14, 16 hr), Day 3 (Pre-Dose, 2, 4, 6, 8, 10 hr), Day 4 Pre-Dose, Day 5 Pre-Dose, Day 6 (Pre-Dose, 4, 8, 10, 10.5, 11, 12, 13, 14, 16 hr), FU 1 0 hr, FU 2 (0 and 8 hr), and FU 3 0 hr. Values are reported for the single-dose regimen (Day 1) and the first day of the multiple-dose regimen (Day 2). From Day 1, most values were below the detectable level (i.e. <15 pg/ml). Values below this value are reported as not applicable (NA).
Time Frame	Day 1 (Pre-Dose, 0.5, 2, 4, 8, 9, 10, 11, 12, 14, 16 hr) and Day 2 (Pre-Dose, 0.5, 2, 4, 8, 9, 10, 10.5, 11, 12, 13, 14, 16 hr)

Outcome Measure Data

Analysis Population Description

PK-Set (PKS), defined as all subjects completing the PK sampling according to the study protocol and who did not show serious protocol deviations or non-compliance.

Arm/Group Title	rhNGF 20μg/mL	Placebo
Arm/Group Description	rhNGF 20μg/mL eye drop solution, formulation containing L-methionine as excipient. rhNGF 20μg/mL: Study Eye (For subjects randomized to rhNGF group) Day 1: One drop instilled into study eye (35 μL, corresponding to 0.70 μg of rhNGF). Day 2, 3, 4, 5, 6: One drop six times a day (every 2h) into study eye (210 μL, corresponding to 4.20 μg of rhNGF). Total dose in the study eye will be 31 drops (1085 μL, equivalent to 21.7 μg rhNGF) over 6 days.	Vehicle: formulation containing L-methionine as excipient. Placebo: Vehicle: formulation containing L-methionine as excipient.
Measure Participants	20	10
Day 1 - Pre-Dose	39.22 (105.51)	NA (36.08)
Day 1 - 0.5 hr	36.28 (99.46)	NA (31.31)
Day 1 - 2 hr	38.52 (105.06)	NA (28.70)
Day 1 - 4 hr	39.43 (111.73)	NA (30.72)
Day 1 - 8 hr	33.76 (90.93)	NA (31.69)
Day 1 - 9 hr	35.27 (94.70)	NA (29.23)
Day 1 - 10 hr	28.77 (68.13)	NA (23.69)
Day 1 - 11 hr	34.87 (95.60)	NA (33.46)
Day 1 - 12 hr	31.97 (86.13)	NA (32.38)
Day 1 - 14 hr	34.23 (89.93)	NA (30.36)
Day 1 - 16 hr	39.29 (111.35)	NA (25.93)
Day 2 - Pre-Dose	39.53 (113.26)	NA (32.57)
Day 2 - 0.5 hr	34.35 (98.20)	NA (36.71)
Day 2 - 2 hr	38.27 (103.68)	NA (37.84)
Day 2 - 4 hr	35.51 (96.54)	17.02 (41.93)
Day 2 - 6 hr	38.43 (106.00)	NA (31.75)
Day 2 - 8 hr	33.90 (93.43)	NA (26.91)
Day 2 - 10 hr	37.84 (102.03)	NA (27.13)
Day 2 - 10.5 hr	39.64 (110.40)	NA (26.77)
Day 2 - 11 hr	44.55 (121.82)	NA (26.51)
Day 2 - 12 hr	37.81 (101.13)	NA (34.16)
Day 2 - 13 hr	39.35 (104.93)	NA (33.78)
Day 2 - 14 hr	37.31 (99.77)	NA (27.79)
Day 2 - 16 hr	40.55 (118.50)	NA (16.32)

Adverse Events

Time Frame	From Day -1 to Day 42
Arm/Group Title	rhNGF 20μg/mL		Placebo
Arm/Group Description	rhNGF 20μg/mL eye drop solution, formulation containing L-methionine as excipient. rhNGF 20μg/mL: Study Eye (For subjects randomized to rhNGF group) Day 1: One drop instilled into study eye (35 μL, corresponding to 0.70 μg of rhNGF). Day 2, 3, 4, 5, 6: One drop six times a day (every 2h) into study eye (210 μL, corresponding to 4.20 μg of rhNGF). Total dose in the study eye will be 31 drops (1085 μL, equivalent to 21.7 μg rhNGF) over 6 days.		Vehicle: formulation containing L-methionine as excipient. Placebo: Vehicle: formulation containing L-methionine as excipient.
All Cause Mortality
	rhNGF 20μg/mL		Placebo
	Affected / at Risk (%)	# Events	Affected / at Risk (%)	# Events
Total	0/20 (0%)		0/10 (0%)
Serious Adverse Events
	rhNGF 20μg/mL		Placebo
	Affected / at Risk (%)	# Events	Affected / at Risk (%)	# Events
Total	0/20 (0%)		0/10 (0%)
Other (Not Including Serious) Adverse Events
	rhNGF 20μg/mL		Placebo
	Affected / at Risk (%)	# Events	Affected / at Risk (%)	# Events
Total	10/20 (50%)		5/10 (50%)
Eye disorders
Eye pain	2/20 (10%)	2	0/10 (0%)	0
Eye pruritus	0/20 (0%)	0	1/10 (10%)	1
Eye irritation	1/20 (5%)	1	0/10 (0%)	0
Gastrointestinal disorders
Aphthous ulcer	1/20 (5%)	1	1/10 (10%)	1
General disorders
Catheter site oedema	1/20 (5%)	1	0/10 (0%)	0
Injection site reaction	0/20 (0%)	0	1/10 (10%)	1
Infections and infestations
Conjunctivitis	6/20 (30%)	6	0/10 (0%)	0
Investigations
Alanine aminotransferase increased	2/20 (10%)	2	1/10 (10%)	1
Aspartate aminotransferase incresed	2/20 (10%)	2	1/10 (10%)	1
Vital dye staining corneal present	5/20 (25%)	9	3/10 (30%)	4
Nervous system disorders
Headache	1/20 (5%)	1	0/10 (0%)	0
Skin and subcutaneous tissue disorders
Pruritus	1/20 (5%)	2	0/10 (0%)	0

Limitations/Caveats

[Not Specified]

More Information

Certain Agreements

Principal Investigators are NOT employed by the organization sponsoring the study.

There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.