Trial Outcomes & Findings for Efficacy of the Nanodropper Device on Intraocular Pressure in Patients With Glaucoma (NCT NCT05273385)

NCT ID: NCT05273385

Last Updated: 2026-03-05

Results Overview

IOP measurement of the eye will be collected at the baseline visit using routine methods including Goldman applanation tonometry and pneumotonometer.

Recruitment status

TERMINATED

Study phase

NA

Target enrollment

16 participants

Primary outcome timeframe

At Baseline

Results posted on

2026-03-05

Participant Flow

Baseline visit was done after a wash out period of 4-5 weeks was completed.

Participant milestones

Participant milestones
Measure
Standard of Care
This group administered the IOP lowering eye drops as standard of care.
Nanodropper
This group administered the IOP lowering eye drops using the Nanodropper.
Overall Study
STARTED
10
6
Overall Study
COMPLETED
7
6
Overall Study
NOT COMPLETED
3
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Efficacy of the Nanodropper Device on Intraocular Pressure in Patients With Glaucoma

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Standard of Care
n=7 Participants
This group administered the IOP lowering eye drops as standard of care.
Nanodropper
n=6 Participants
This group administered the IOP lowering eye drops using the Nanodropper.
Total
n=13 Participants
Total of all reporting groups
Age, Continuous
73.3 number of years
STANDARD_DEVIATION 11.1 • n=41 Participants
66.5 number of years
STANDARD_DEVIATION 8.7 • n=35 Participants
70.2 number of years
STANDARD_DEVIATION 10.3 • n=76 Participants
Sex: Female, Male
Female
2 Participants
n=41 Participants
3 Participants
n=35 Participants
5 Participants
n=76 Participants
Sex: Female, Male
Male
5 Participants
n=41 Participants
3 Participants
n=35 Participants
8 Participants
n=76 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=41 Participants
0 Participants
n=35 Participants
0 Participants
n=76 Participants
Race (NIH/OMB)
Asian
0 Participants
n=41 Participants
1 Participants
n=35 Participants
1 Participants
n=76 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=41 Participants
0 Participants
n=35 Participants
0 Participants
n=76 Participants
Race (NIH/OMB)
Black or African American
2 Participants
n=41 Participants
1 Participants
n=35 Participants
3 Participants
n=76 Participants
Race (NIH/OMB)
White
4 Participants
n=41 Participants
2 Participants
n=35 Participants
6 Participants
n=76 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=41 Participants
1 Participants
n=35 Participants
1 Participants
n=76 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
n=41 Participants
1 Participants
n=35 Participants
2 Participants
n=76 Participants
Participants with both Goldmann Applanation and Pneumotonometer IOP Measured
7 Participants
n=41 Participants
6 Participants
n=35 Participants
13 Participants
n=76 Participants

PRIMARY outcome

Timeframe: At Baseline

Population: Only patients with completed data was analyzed.

IOP measurement of the eye will be collected at the baseline visit using routine methods including Goldman applanation tonometry and pneumotonometer.

Outcome measures

Outcome measures
Measure
Nanodropper
n=6 Participants
Participants will receive the Nanodropper with instructions and attend clinic visits at baseline, 1, and 3 months. Participants will administer their eye drops using the Nanodropper.
Standard of Care Dropper
n=7 Participants
Participants will receive standard of care eye dropper with instructions and attend clinic visits at baseline, 1, and 3 months. Participants will administer their eye drops using the standard of care eye dropper.
Standard of Care Right Eye
Participants right eye who were randomized to the standard of care arm.
Standard of Care Left Eye
Participants left eye who were randomized to the standard of care arm.
Intraocular Pressure (IOP) at Baseline
Goldmann Right Eye
21.1 mmHg
Standard Deviation 4.0
18.4 mmHg
Standard Deviation 4.5
Intraocular Pressure (IOP) at Baseline
Goldmann Left Eye
20.1 mmHg
Standard Deviation 3.6
19.3 mmHg
Standard Deviation 5.9
Intraocular Pressure (IOP) at Baseline
Pneumotonometer Right Eye
21.3 mmHg
Standard Deviation 4.1
20.1 mmHg
Standard Deviation 7.2
Intraocular Pressure (IOP) at Baseline
Pneumotonometer Left Eye
22.6 mmHg
Standard Deviation 4.3
20.6 mmHg
Standard Deviation 6.9

PRIMARY outcome

Timeframe: 1 month

Population: Only patients with completed data was analyzed.

IOP measurement of the eye will be collected at the Month 1 visit using routine methods including Goldman applanation tonometry and pneumotonometer.

Outcome measures

Outcome measures
Measure
Nanodropper
n=6 Participants
Participants will receive the Nanodropper with instructions and attend clinic visits at baseline, 1, and 3 months. Participants will administer their eye drops using the Nanodropper.
Standard of Care Dropper
n=7 Participants
Participants will receive standard of care eye dropper with instructions and attend clinic visits at baseline, 1, and 3 months. Participants will administer their eye drops using the standard of care eye dropper.
Standard of Care Right Eye
Participants right eye who were randomized to the standard of care arm.
Standard of Care Left Eye
Participants left eye who were randomized to the standard of care arm.
Intraocular Pressure (IOP) at Month 1
Goldmann Left Eye
16.9 mmHg
Standard Deviation 2.8
16.8 mmHg
Standard Deviation 4.3
Intraocular Pressure (IOP) at Month 1
Pneumotonometer Right Eye
17.5 mmHg
Standard Deviation 3.3
18.9 mmHg
Standard Deviation 4.2
Intraocular Pressure (IOP) at Month 1
Pneumotonometer Left Eye
18.1 mmHg
Standard Deviation 3.0
19.2 mmHg
Standard Deviation 3.8
Intraocular Pressure (IOP) at Month 1
Goldmann Right Eye
17.4 mmHg
Standard Deviation 3.7
16.5 mmHg
Standard Deviation 4.8

PRIMARY outcome

Timeframe: 3 months

Population: Only data from participants who completed all visits were analyzed.

IOP measurement of the eye will be collected at the month 3 visit using routine methods including Goldman applanation tonometry and pneumotonometer.

Outcome measures

Outcome measures
Measure
Nanodropper
n=6 Participants
Participants will receive the Nanodropper with instructions and attend clinic visits at baseline, 1, and 3 months. Participants will administer their eye drops using the Nanodropper.
Standard of Care Dropper
n=7 Participants
Participants will receive standard of care eye dropper with instructions and attend clinic visits at baseline, 1, and 3 months. Participants will administer their eye drops using the standard of care eye dropper.
Standard of Care Right Eye
Participants right eye who were randomized to the standard of care arm.
Standard of Care Left Eye
Participants left eye who were randomized to the standard of care arm.
Intraocular Pressure (IOP) at Month 3
Goldmann Right Eye
16.7 mmHg
Standard Deviation 3.3
14.6 mmHg
Standard Deviation 4.3
Intraocular Pressure (IOP) at Month 3
Goldmann Left Eye
16.3 mmHg
Standard Deviation 2.9
14.6 mmHg
Standard Deviation 4.3
Intraocular Pressure (IOP) at Month 3
Pneumotonometer Right Eye
17.2 mmHg
Standard Deviation 1.4
17.6 mmHg
Standard Deviation 4.2
Intraocular Pressure (IOP) at Month 3
Pneumotonometer Left Eye
17.6 mmHg
Standard Deviation 2.2
17.3 mmHg
Standard Deviation 3.4

SECONDARY outcome

Timeframe: 3 months

Population: Only the participants randomized to the nanodropper arm was surveyed.

The following open-ended questions will be administered to participants randomized to the Nanodropper group at the end of the 3-month study. 1. Would you consider using the Nanodropper for your regular eye drop use in the future? (yes/no) 2. Did you find the Nanodropper easy to use? (yes/no) 3. Did using the Nanodropper cause more irritation compared to normal eye drop bottles? (yes/no)

Outcome measures

Outcome measures
Measure
Nanodropper
n=6 Participants
Participants will receive the Nanodropper with instructions and attend clinic visits at baseline, 1, and 3 months. Participants will administer their eye drops using the Nanodropper.
Standard of Care Dropper
Participants will receive standard of care eye dropper with instructions and attend clinic visits at baseline, 1, and 3 months. Participants will administer their eye drops using the standard of care eye dropper.
Standard of Care Right Eye
Participants right eye who were randomized to the standard of care arm.
Standard of Care Left Eye
Participants left eye who were randomized to the standard of care arm.
Survey
1. Would you consider using the Nanodropper for your regular eye drop use in the future? (yes/no) · Yes
2 Participants
0 Participants
Survey
1. Would you consider using the Nanodropper for your regular eye drop use in the future? (yes/no) · No
3 Participants
0 Participants
Survey
1. Would you consider using the Nanodropper for your regular eye drop use in the future? (yes/no) · Missing
1 Participants
0 Participants
Survey
2. Did you find the Nanodropper easy to use? (yes/no) · Yes
5 Participants
0 Participants
Survey
2. Did you find the Nanodropper easy to use? (yes/no) · No
0 Participants
0 Participants
Survey
2. Did you find the Nanodropper easy to use? (yes/no) · Missing
1 Participants
0 Participants
Survey
3. Did using the Nanodropper cause more irritation compared to normal eye drop bottles? (yes/no) · Yes
5 Participants
0 Participants
Survey
3. Did using the Nanodropper cause more irritation compared to normal eye drop bottles? (yes/no) · No
0 Participants
0 Participants
Survey
3. Did using the Nanodropper cause more irritation compared to normal eye drop bottles? (yes/no) · Missing
1 Participants
0 Participants

SECONDARY outcome

Timeframe: At baseline

Population: We used the number of eyes not participants for this analysis.

Conjunctival grading will be performed by a masked ophthalmologist at the baseline study visit. Grading will be performed with redness graded on a scale of 0-100 using the bulbar redness 5-picture validated scale. A grade of 0 is considered to be the least red and therefore a better outcome. A grade of 100 is considered the most red and therefore a worse outcome.

Outcome measures

Outcome measures
Measure
Nanodropper
n=6 Eyes
Participants will receive the Nanodropper with instructions and attend clinic visits at baseline, 1, and 3 months. Participants will administer their eye drops using the Nanodropper.
Standard of Care Dropper
n=4 Eyes
Participants will receive standard of care eye dropper with instructions and attend clinic visits at baseline, 1, and 3 months. Participants will administer their eye drops using the standard of care eye dropper.
Standard of Care Right Eye
n=6 Eyes
Participants right eye who were randomized to the standard of care arm.
Standard of Care Left Eye
n=5 Eyes
Participants left eye who were randomized to the standard of care arm.
Conjunctival Grading at Baseline
28.3 scores on a scale
Standard Deviation 9.8
25.0 scores on a scale
Standard Deviation 10.0
32.9 scores on a scale
Standard Deviation 11.1
33.3 scores on a scale
Standard Deviation 12.1

SECONDARY outcome

Timeframe: 3 months

Population: We used the number of eyes not participants for this analysis.

Conjunctival grading will be performed by a masked ophthalmologist the 3 month study visit. Grading will be performed with redness graded on a scale of 0-100 using the bulbar redness grading 5-picture validated scale. A grade of 0 is considered to be the least red and therefore a better outcome. A grade of 100 is considered the most red and therefore a worse outcome.

Outcome measures

Outcome measures
Measure
Nanodropper
n=6 eyes
Participants will receive the Nanodropper with instructions and attend clinic visits at baseline, 1, and 3 months. Participants will administer their eye drops using the Nanodropper.
Standard of Care Dropper
n=4 eyes
Participants will receive standard of care eye dropper with instructions and attend clinic visits at baseline, 1, and 3 months. Participants will administer their eye drops using the standard of care eye dropper.
Standard of Care Right Eye
n=6 eyes
Participants right eye who were randomized to the standard of care arm.
Standard of Care Left Eye
n=5 eyes
Participants left eye who were randomized to the standard of care arm.
Conjunctival Grading at Month 3
34.0 scores on a scale
Standard Deviation 13.4
32.5 scores on a scale
Standard Deviation 15.0
30.0 scores on a scale
Standard Deviation 10.0
33.3 scores on a scale
Standard Deviation 15.1

Adverse Events

Standard of Care

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Nanodropper

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Ying Han

UCSF

Phone: 415-353-2020

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place