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CompletedNCT05181046Updated Jan 18, 2023

Evaluation of Nanodropper-mediated Microdrops vs. Standard Drops of 0.5% Timolol Maleate in Glaucoma Patients

An interventional study of Nanodropper adaptor and Original eyedrop bottle/No Nanodropper in Glaucoma, Glaucoma, Open-Angle and Glaucoma, Primary Open Angle, sponsored by Nanodropper, Inc.. Completed at 2 sites in India. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-01-18.

Sponsored by Nanodropper, Inc. · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Dec 2022, 3 years 9 months ago, and no results have been posted to the registry.
Phase
Not applicable
Study type
Interventional
Enrollment
420
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this study is to evaluate the effect of microdrops vs. standard eyedrops of 0.5% timolol maleate in adults with primary open-angle glaucoma or ocular hypertension in terms of intraocular pressure-lowering efficacy and cardiovascular side effects.

Read the detailed description

This randomized, single-masked, parallel study aims to evaluate the safety and efficacy of microdrops of 0.5% timolol maleate administered with Nanodropper (experimental intervention) compared to standard drops of 0.5% timolol maleate (active comparator) in patients with primary open-angle glaucoma (OAG) or ocular hypertension (OHT) at Aravind Eye Hospital. At the beginning of the test day, baseline (pre-drug) intraocular pressure (IOP), resting heart rate (HR), and resting systolic and diastolic blood pressure (BP) measurements will be collected. Participants will be randomized to receive standard eyedrops or microdrops of 0.5% timolol maleate (one drop per eye), which will be administered by a trained technician at t = 0. IOP, HR, and BP measurements will be repeated by a masked investigator at t = 1, 2, 5, and 8 hours after drug administration.

02

Conditions studied

  • Glaucoma
  • Glaucoma, Open-Angle
  • Glaucoma, Primary Open Angle
  • Glaucoma and Ocular Hypertension
  • Ocular Hypertension

Keywords

  • Glaucoma
  • Eyedrops
  • Microdrops
03

In context

Glaucoma

1,818 studies on the registry are indexed under Glaucoma; 231 are open to participants now.

This study's enrollment of 420 is above the median of 65 across 1,272 interventional studies indexed under Glaucoma.

Browse Glaucoma studies →

Lead sponsor

This is the only study on the registry with Nanodropper, Inc. as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • ≥18 years old
  • Recent diagnosis of primary OAG or OHT
  • Treatment-naive (not currently using ophthalmic medication)
  • Baseline IOP between 21-35 mm Hg
  • Corrected Snellen visual acuity of 6/60 or better in each eye

Exclusion criteria

Exclusion Criteria:

  • \<18 years old
  • A recent history (within the past 6 months) of ocular trauma, infection, or uveitis
  • Baseline IOP \<21 mm Hg or >35 mm Hg
  • History of cardiovascular, pulmonary, cerebrovascular, or chronic renal disease
  • History of borderline or uncontrolled systemic arterial hypertension
  • Use of any systemic α-agonist or β-blocker within 30 days of study commencement
  • History of receiving general anesthesia within the previous 30 days
  • Pregnant women and nursing mothers
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Investigator)
Enrollment
420 participants (actual)

Study arms

  • Active comparator
    Standard eyedrops of 0.5% timolol maleate

    Participants randomized to this arm will receive one standard drop of 0.5% timolol maleate in each eye.

    Other: Original eyedrop bottle/No Nanodropper

  • Experimental
    Nanodropper-mediated microdrops of 0.5% timolol maleate

    Participants randomized to this arm will receive one microdrop of 0.5% timolol maleate in each eye. Microdrops will be dispensed from bottles with installed Nanodropper adaptors.

    Device: Nanodropper adaptor

Interventions

  • DeviceNanodropper adaptor

    The Nanodropper adaptor is a sterile medical device that reduces the size of administered eyedrops by coupling to the original bottle.

  • OtherOriginal eyedrop bottle/No Nanodropper

    The original eyedrop bottle dispenses standard eyedrops.

06

What researchers measure

Primary outcomes

  1. Intraocular pressure (mm Hg)

    Time frame: 1 hour after drug administration

  2. Intraocular pressure (mm Hg)

    Time frame: 2 hours after drug administration

  3. Intraocular pressure (mm Hg)

    Time frame: 5 hours after drug administration

  4. Intraocular pressure (mm Hg)

    Time frame: 8 hours after drug administration

Secondary outcomes

  1. Resting heart rate (bpm)

    Time frame: 1 hour after drug administration

  2. Resting heart rate (bpm)

    Time frame: 2 hours after drug administration

  3. Resting heart rate (bpm)

    Time frame: 5 hours after drug administration

  4. Resting heart rate (bpm)

    Time frame: 8 hours after drug administration

  5. Resting systolic and diastolic blood pressure (mm Hg)

    Time frame: 1 hour after drug administration

  6. Resting systolic and diastolic blood pressure (mm Hg)

    Time frame: 2 hours after drug administration

  7. Resting systolic and diastolic blood pressure (mm Hg)

    Time frame: 5 hours after drug administration

  8. Resting systolic and diastolic blood pressure (mm Hg)

    Time frame: 8 hours after drug administration

07

Study locations

2 sites
  • Aravind Eye Hospital
    Madurai, India
  • Aravind Eye Hospital
    Pondicherry, India
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 18, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05181046
Lead sponsor
Nanodropper, Inc.
Collaborators
Aravind Eye Care System
Responsible party
Sponsor
First posted
Jan 6, 2022
Start date
Nov 6, 2021
Primary completion
Dec 19, 2022
Completion
Dec 19, 2022
Last update
Jan 18, 2023

Study contacts

Jennifer Steger, PhD
study director · Nanodropper, Inc.

Oversight

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

Not currently enrolling

This study is completed, as verified in Jan 2023. You cannot join it, but the record below documents what was studied.

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