MyopiaNCT06034366
the Efficacy of 0.01% Atropine for Near Work-induced Transient Myopia and Myopic Progression
A study testing 0.01% atropine and 0.9% sodium chloride in people with Myopia, run by He Eye Hospital at 2 sites in China.
Trial summary
Near work-induced transient myopia (NITM) is an important factor in permanent myopia (PM) development and progression. Atropine eye drop is beneficial in reducing initial NITM and slowing down myopic progression.Participants were randomly assigned in a 1:1 ratio to receive 0.01% atropine or placebo eye drop once… Read more about this study
- Who is it for?
- Ages 6 to 12 years
- Conditions the study is for
- Myopia
- What is being tested?
- 0.01% atropine and 0.9% sodium chloride
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 150 participants
- Where
- 2 sitesChina
- Study dates
- 1 Oct 2023to 31 May 2025
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 6 to 12 years
- All sexes
- No healthy volunteers
- Child
Who may be able to join
- Age 6 to 12 years
- Subjects and their guardians agreed to participate in this study
- Best-corrected visual acuity (BCVA) 0.1 (log minimum angle of resolution, LogMAR) or better.
- Initial NITM (spherical equivalent) ≤ -0.25 D
- Cycloplegic refractions ≥ -1.0 D and astigmatism ≤ 2.5 D in both eyes.
- Anisometropia in both eyes ≤ 1.5 D
Who cannot join
- Children with existing systemic diseases including asthma, collagen disease, immune system disorders, prostate hypertrophy, spastic paralysis, Down's syndrome, severe cardiac, pulmonary, hepatic, and renal dysfunction.
- Patients with glaucoma or high intraocular pressure, ocular inflammatory diseases, strabismus, amblyopia, corneal diseases, diseases of lens, retinal and optic neuropathy
- Regular use of medications that may affect the efficacy of 0.01% atropine, including hairy fruit rutabaga eye drops, tropicamide eye drops, anticholinergic drugs such as pirenzepine and tropicamide, and cholinergic drugs such as carbachol and hairy fruit rutabaga.
- Previous experiences with myopia control therapy.
- A history of allergies to atropine.
- Patients were deemed inappropriate for trial participation by the lead investigator.
Trial locations and contacts
2 sites in 1 country.
China2 sites, 2 recruiting
- Recruiting
He Eye Hospital
Shenyang, Liaoning, 110034
Emmanuel Eric Pazo, PhD, 0086-18612782131, ericpazo@outlook.com
Qin Guanghao, MD, 0086-18842664420, qinguanghao@hsyk.com.cn
- Recruiting
He Eye Specialist Hospital
Shenyang, 110034
Emmanuel Eric Pazo, +8618612782131, ericpazo@outlook.com
About this study
Official title: a Parallel Assignment Prospective, Randomized, Double-blinded, Placebo-controlled Trial to Evaluate the Efficacy of 0.01% Atropine for Near Work-induced Transient Myopia and Myopic Progression
Near work-induced transient myopia (NITM) is an important factor in permanent myopia (PM) development and progression. Atropine eye drop is beneficial in reducing initial NITM and slowing down myopic progression.Participants were randomly assigned in a 1:1 ratio to receive 0.01% atropine or placebo eye drop once nightly bilaterally for one year. Initial NITM, cycloplegic refraction, axial length (AL), best-corrected visual acuity (BCVA), intraocular pressure (IOP), and pupil diameter will be measured at baseline, 4-week, 12-week, 24-week, 36-week, and 48-week. Visual Function Questionnaire was administered at baseline and each follow-up visit. Adverse events also will be monitored and documented at each subsequent follow-up visit. This study investigates the efficacy of 0.01% atropine in the treatment of NITM and its possible association with the progression of refractive change in Chinese myopic children.
Read the detailed description
Myopia is a common condition that develops primarily during childhood and early adulthood when excessive elongation of the eye results in images of distant objects coming into focus in front of the retina, resulting in blurred distance vision. Myopia is the most common ocular disorder worldwide, with increasing prevalence over the past decades, predominantly in East Asia. Previous studies suggested that environmental factors, such as near-work demands, likely play an important role in myopia development in the younger population.
Near work, a main environmental-based factor in the development and progression of permanent myopia (PM), induced via near work-induced transient myopia (NITM). Compared with PM, NITM refers to the prolonged period required for the accommodation of the eyes to return to a normal level after engaging in a sustained near task. It was proposed some years ago that NITM, which produces minor and chronic retinal defocus, may be one of many possible environmentally-based, myopigenic, contributory factors to permanent myopia.
As a nonselective muscarinic antagonist, atropine eye drops with different concentrations have been reported to slow down the myopic progression in myopes. Recently, a two weeks study assessed the efficacy of a low-concentration of atropine (0.01%) on the initial NITM magnitude among Chinese myopic children. The results suggested 0.01% atropine reduced the initial NITM magnitude. However, the long-term efficacy of 0.01% atropine in treating NITM and the relationship between NITM and refractive change after treatment is still unclear.
This study aimed to investigate the efficacy of 0.01% atropine in treating NITM and its possible association with the progression of refractive change in Chinese myopic children.
- Conditions
- Myopia
- Being tested
- 0.01% atropine, 0.9% sodium chloride
- Medical subject headings
- Myopia
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
0.01% atropineDrug
0.01% atropine (3 ml unit-concentration, preservative-free) once nightly in both eyes for 48 weeks,
0.9% sodium chlorideOther
placebo eye drops (0.9% sodium chloride, 3 ml unit-concentration, preservative-free) once nightly in both eyes for 48 weeks
| Study group | Role | What they receive |
|---|---|---|
| study group | Experimental | Participants in the study group will use 0.01% atropine (3 ml unit-concentration, preservative-free) once nightly in both eyes for 48 weeks, Receives: Drug: 0.01% atropine |
| placebo eye drops | Other | participants in the control group will utilize placebo eye drops (0.9% sodium chloride, 3 ml unit-concentration, preservative-free) once nightly in both eyes for 48 weeks. Receives: Other: 0.9% sodium chloride |
What is being measured
The primary outcome is the main question the study is designed to answer.
Nearwork-induced transient myopia (NITM) in diopter
WAM-5500; Grand Seiko, Japan, will be used to assess the NITM in diopter unit.
Measured: At baseline, week 4, week 12, week 24, week 36, and week 48
Secondary outcomes (3)
Spherical equivalent (SE) in diopter
WAM-5500; Grand Seiko, Japan, will be used to assess the SE of each eye in diopter unit.
Measured: At baseline, week 4, week 12, week 24, week 36, and week 48
Axial length (AL) in millimetre
Zeiss IOL Master 700 will be used to assess the AL of each eye in diopter unit.
Measured: At baseline, week 4, week 12, week 24, week 36, and week 48
25-Item National Eye Institute Visual Function Questionnaire (NEI-VFQ-25)
The NEI-VFQ-25 contains 25 questions: general health, general vision, ocular pain, distance, near tasks, dependency on others, role limitation, mental health, social function, driving, peripheral vision, and color vision difficulty. The answer is converted into a 100-point scale for each question, with 100 being the best and 0 the worst. One or more questions are specific to each subscale; therefore, the subscale score is the average of one or more specific questions. The Chinese version of the NEI-VFQ-25 questionnaire was used
Measured: At baseline, week 4, week 12, week 24, week 36, and week 48
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Sep 2023
- Study start1 Oct 2023
- Primary completion31 May 2025 (estimated)
- Study completion31 May 2025 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (14)Papers the sponsor has linked to this study.
- Other trials for MyopiaStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Care provider
- Enrolment
- 150 participants (estimated)
Sponsor and investigators
- Lead sponsor
- He Eye Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06034366
- Sponsor's protocol ID
- atropine2023
- Status last verified
- Sep 2023
- First submitted
- 23 Aug 2023
- Last updated
- 29 Nov 2023
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: The study's findings will be shared regardless of the effect's direction. All possible beneficiaries of the research, including patients, carers, family, doctors, advisory boards, and medical boards, will receive trial data. Publications in high-impact, open-access medical journals and talks at national and international medical conferences will serve this purpose.
Publications
Baird PN, Saw SM, Lanca C, Guggenheim JA, Smith Iii EL, Zhou X, Matsui KO, Wu PC, Sankaridurg P, Chia A, Rosman M, Lamoureux EL, Man R, He M. Myopia. Nat Rev Dis Primers. 2020 Dec 17;6(1):99. doi: 10.1038/s41572-020-00231-4.
PubMed 33328468He M, Huang W, Li Y, Zheng Y, Yin Q, Foster PJ. Refractive error and biometry in older Chinese adults: the Liwan eye study. Invest Ophthalmol Vis Sci. 2009 Nov;50(11):5130-6. doi: 10.1167/iovs.09-3455. Epub 2009 Jun 24.
PubMed 19553618Wong TY, Foster PJ, Hee J, Ng TP, Tielsch JM, Chew SJ, Johnson GJ, Seah SK. Prevalence and risk factors for refractive errors in adult Chinese in Singapore. Invest Ophthalmol Vis Sci. 2000 Aug;41(9):2486-94.
PubMed 10937558Ciuffreda KJ, Vasudevan B. Nearwork-induced transient myopia (NITM) and permanent myopia--is there a link? Ophthalmic Physiol Opt. 2008 Mar;28(2):103-14. doi: 10.1111/j.1475-1313.2008.00550.x.
PubMed 18339041Vera-Diaz FA, Strang NC, Winn B. Nearwork induced transient myopia during myopia progression. Curr Eye Res. 2002 Apr;24(4):289-95. doi: 10.1076/ceyr.24.4.289.8418.
PubMed 12324868Lin Z, Vasudevan B, Ciuffreda KJ, Wang NL, Zhang YC, Rong SS, Qiao LY, Pang CC, Liang YB. Nearwork-induced transient myopia and parental refractive error. Optom Vis Sci. 2013 May;90(5):507-16. doi: 10.1097/OPX.0b013e31828deef1.
PubMed 23538434Yam JC, Zhang XJ, Zhang Y, Wang YM, Tang SM, Li FF, Kam KW, Ko ST, Yip BHK, Young AL, Tham CC, Chen LJ, Pang CP. Three-Year Clinical Trial of Low-Concentration Atropine for Myopia Progression (LAMP) Study: Continued Versus Washout: Phase 3 Report. Ophthalmology. 2022 Mar;129(3):308-321. doi: 10.1016/j.ophtha.2021.10.002. Epub 2021 Oct 7.
PubMed 34627809Yam JC, Li FF, Zhang X, Tang SM, Yip BHK, Kam KW, Ko ST, Young AL, Tham CC, Chen LJ, Pang CP. Two-Year Clinical Trial of the Low-Concentration Atropine for Myopia Progression (LAMP) Study: Phase 2 Report. Ophthalmology. 2020 Jul;127(7):910-919. doi: 10.1016/j.ophtha.2019.12.011. Epub 2019 Dec 21.
PubMed 32019700Guo L, Fan L, Tao J, Hua R, Yang Q, Gu H, Yu S, Li L, Zhao X. Use of Topical 0.01% Atropine for Controlling Near Work-Induced Transient Myopia: A Randomized, Double-Masked, Placebo-Controlled Study. J Ocul Pharmacol Ther. 2020 Mar;36(2):97-101. doi: 10.1089/jop.2019.0062. Epub 2019 Dec 3.
PubMed 31800355Chan AW, Tetzlaff JM, Gotzsche PC, Altman DG, Mann H, Berlin JA, Dickersin K, Hrobjartsson A, Schulz KF, Parulekar WR, Krleza-Jeric K, Laupacis A, Moher D. SPIRIT 2013 explanation and elaboration: guidance for protocols of clinical trials. BMJ. 2013 Jan 8;346:e7586. doi: 10.1136/bmj.e7586.
PubMed 23303884Jimenez R, Redondo B, Galan T, Machado P, Molina R, Vera J. Impact of dual-focus soft contact lens wear on near work-induced transient myopia. Clin Exp Optom. 2023 Apr;106(3):296-302. doi: 10.1080/08164622.2022.2029684. Epub 2022 Jan 24.
PubMed 35073496Chan CW, Wong D, Lam CL, McGhee S, Lai WW. Development of a Chinese version of the National Eye Institute Visual Function Questionnaire (CHI-VFQ-25) as a tool to study patients with eye diseases in Hong Kong. Br J Ophthalmol. 2009 Nov;93(11):1431-6. doi: 10.1136/bjo.2009.158428. Epub 2009 Jun 9.
PubMed 19515645Miura M, Inomata T, Nojiri S, Sung J, Nagao M, Shimazaki J, Midorikawa-Inomata A, Okumura Y, Fujio K, Akasaki Y, Kuwahara M, Huang T, Nakamura M, Iwagami M, Hirosawa K, Fujimoto K, Murakami A. Clinical efficacy of diquafosol sodium 3% versus hyaluronic acid 0.1% in patients with dry eye disease after cataract surgery: a protocol for a single-centre, randomised controlled trial. BMJ Open. 2022 Jan 31;12(1):e052488. doi: 10.1136/bmjopen-2021-052488.
PubMed 35105626Qin G, Chen J, Hu L, Qi Y, Xu L, He W, Yu S, Pazo EE, He X. Protocol for a parallel assignment prospective, randomised, double-blinded, placebo-controlled trial to evaluate the efficacy of 0.01% atropine for near work-induced transient myopia and myopic progression in China. BMJ Open. 2023 Dec 20;13(12):e079833. doi: 10.1136/bmjopen-2023-079833.
PubMed 38128934
Study at a glance
From the registry record, last updated by the sponsor on 29 Nov 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- a Parallel Assignment Prospective, Randomized, Double-blinded, Placebo-controlled Trial to Evaluate the Efficacy of 0.01% Atropine for Near Work-induced Transient Myopia and Myopic Progression
- ClinicalTrials.gov ID
- NCT06034366
- Acronym / sponsor ID
- atropine2023
- Conditions
- Myopia
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 150 participants (estimated)
- Lead sponsor
- He Eye HospitalUniversity, hospital or other
- Study start
- 1 Oct 2023 (actual)
- Primary completion
- 31 May 2025 (estimated)
- Study completion
- 31 May 2025 (estimated)
- First posted
- 13 Sep 2023 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Near work-induced transient myopia (NITM) is an important factor in permanent myopia (PM) development and progression. Atropine eye drop is beneficial in reducing initial NITM and slowing down myopic progression.Participants were randomly assigned in a 1:1 ratio to receive 0.01% atropine or placebo eye drop once nightly bilaterally for one year. Initial NITM, cycloplegic refraction, axial length (AL), best-corrected visual acuity (BCVA), intraocular pressure (IOP), and pupil diameter will be measured at baseline, 4-week, 12-week, 24-week, 36-week, and 48-week. Visual Function Questionnaire was administered at baseline and each follow-up visit. Adverse events also will be monitored and documented at each subsequent follow-up visit. This study investigates the efficacy of 0.01% atropine in the treatment of NITM and its possible association with the progression of refractive change in Chinese myopic children.
Detailed description
Myopia is a common condition that develops primarily during childhood and early adulthood when excessive elongation of the eye results in images of distant objects coming into focus in front of the retina, resulting in blurred distance vision. Myopia is the most common ocular disorder worldwide, with increasing prevalence over the past decades, predominantly in East Asia. Previous studies suggested that environmental factors, such as near-work demands, likely play an important role in myopia development in the younger population.
Near work, a main environmental-based factor in the development and progression of permanent myopia (PM), induced via near work-induced transient myopia (NITM). Compared with PM, NITM refers to the prolonged period required for the accommodation of the eyes to return to a normal level after engaging in a sustained near task. It was proposed some years ago that NITM, which produces minor and chronic retinal defocus, may be one of many possible environmentally-based, myopigenic, contributory factors to permanent myopia.
As a nonselective muscarinic antagonist, atropine eye drops with different concentrations have been reported to slow down the myopic progression in myopes. Recently, a two weeks study assessed the efficacy of a low-concentration of atropine (0.01%) on the initial NITM magnitude among Chinese myopic children. The results suggested 0.01% atropine reduced the initial NITM magnitude. However, the long-term efficacy of 0.01% atropine in treating NITM and the relationship between NITM and refractive change after treatment is still unclear.
This study aimed to investigate the efficacy of 0.01% atropine in treating NITM and its possible association with the progression of refractive change in Chinese myopic children.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, care provider)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| study group | Experimental | Drug: 0.01% atropineParticipants in the study group will use 0.01% atropine (3 ml unit-concentration, preservative-free) once nightly in both eyes for 48 weeks, |
| placebo eye drops | Other | Other: 0.9% sodium chlorideparticipants in the control group will utilize placebo eye drops (0.9% sodium chloride, 3 ml unit-concentration, preservative-free) once nightly in both eyes for 48 weeks. |
Who may qualify
- Ages
- 6 to 12 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child
Key inclusion criteria (6 listed)
- Age 6 to 12 years
- Subjects and their guardians agreed to participate in this study
- Best-corrected visual acuity (BCVA) 0.1 (log minimum angle of resolution, LogMAR) or better.
- Initial NITM (spherical equivalent) ≤ -0.25 D
- Cycloplegic refractions ≥ -1.0 D and astigmatism ≤ 2.5 D in both eyes.
Key exclusion criteria (6 listed)
- Children with existing systemic diseases including asthma, collagen disease, immune system disorders, prostate hypertrophy, spastic paralysis, Down's syndrome, severe cardiac, pulmonary, hepatic, and renal dysfunction.
- Patients with glaucoma or high intraocular pressure, ocular inflammatory diseases, strabismus, amblyopia, corneal diseases, diseases of lens, retinal and optic neuropathy
- Regular use of medications that may affect the efficacy of 0.01% atropine, including hairy fruit rutabaga eye drops, tropicamide eye drops, anticholinergic drugs such as pirenzepine and tropicamide, and cholinergic drugs such as carbachol and hairy fruit rutabaga.
- Previous experiences with myopia control therapy.
- A history of allergies to atropine.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| 0.01% atropine0.01% atropine (3 ml unit-concentration, preservative-free) once nightly in both eyes for 48 weeks, | Drug | study group |
| 0.9% sodium chlorideplacebo eye drops (0.9% sodium chloride, 3 ml unit-concentration, preservative-free) once nightly in both eyes for 48 weeks | Other | placebo eye drops |
Primary outcome
Nearwork-induced transient myopia (NITM) in diopter
Time frame: At baseline, week 4, week 12, week 24, week 36, and week 48
WAM-5500; Grand Seiko, Japan, will be used to assess the NITM in diopter unit.
3 secondary outcomes
Spherical equivalent (SE) in diopter
Time frame: At baseline, week 4, week 12, week 24, week 36, and week 48
Axial length (AL) in millimetre
Time frame: At baseline, week 4, week 12, week 24, week 36, and week 48
25-Item National Eye Institute Visual Function Questionnaire (NEI-VFQ-25)
Time frame: At baseline, week 4, week 12, week 24, week 36, and week 48
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 29 Nov 2023.
- Background: PubMed 33328468Baird PN, Saw SM, Lanca C, Guggenheim JA, Smith Iii EL, Zhou X, Matsui KO, Wu PC, Sankaridurg P, Chia A, Rosman M, Lamoureux EL, Man R, He M. Myopia. Nat Rev Dis Primers. 2020 Dec 17;6(1):99. doi: 10.1038/s41572-020-00231-4.
- Background: PubMed 19553618He M, Huang W, Li Y, Zheng Y, Yin Q, Foster PJ. Refractive error and biometry in older Chinese adults: the Liwan eye study. Invest Ophthalmol Vis Sci. 2009 Nov;50(11):5130-6. doi: 10.1167/iovs.09-3455. Epub 2009 Jun 24.
- Background: PubMed 10937558Wong TY, Foster PJ, Hee J, Ng TP, Tielsch JM, Chew SJ, Johnson GJ, Seah SK. Prevalence and risk factors for refractive errors in adult Chinese in Singapore. Invest Ophthalmol Vis Sci. 2000 Aug;41(9):2486-94.
- Background: PubMed 18339041Ciuffreda KJ, Vasudevan B. Nearwork-induced transient myopia (NITM) and permanent myopia--is there a link? Ophthalmic Physiol Opt. 2008 Mar;28(2):103-14. doi: 10.1111/j.1475-1313.2008.00550.x.
- Background: PubMed 12324868Vera-Diaz FA, Strang NC, Winn B. Nearwork induced transient myopia during myopia progression. Curr Eye Res. 2002 Apr;24(4):289-95. doi: 10.1076/ceyr.24.4.289.8418.
- Background: PubMed 23538434Lin Z, Vasudevan B, Ciuffreda KJ, Wang NL, Zhang YC, Rong SS, Qiao LY, Pang CC, Liang YB. Nearwork-induced transient myopia and parental refractive error. Optom Vis Sci. 2013 May;90(5):507-16. doi: 10.1097/OPX.0b013e31828deef1.
- Background: PubMed 34627809Yam JC, Zhang XJ, Zhang Y, Wang YM, Tang SM, Li FF, Kam KW, Ko ST, Yip BHK, Young AL, Tham CC, Chen LJ, Pang CP. Three-Year Clinical Trial of Low-Concentration Atropine for Myopia Progression (LAMP) Study: Continued Versus Washout: Phase 3 Report. Ophthalmology. 2022 Mar;129(3):308-321. doi: 10.1016/j.ophtha.2021.10.002. Epub 2021 Oct 7.
- Background: PubMed 32019700Yam JC, Li FF, Zhang X, Tang SM, Yip BHK, Kam KW, Ko ST, Young AL, Tham CC, Chen LJ, Pang CP. Two-Year Clinical Trial of the Low-Concentration Atropine for Myopia Progression (LAMP) Study: Phase 2 Report. Ophthalmology. 2020 Jul;127(7):910-919. doi: 10.1016/j.ophtha.2019.12.011. Epub 2019 Dec 21.
- Background: PubMed 31800355Guo L, Fan L, Tao J, Hua R, Yang Q, Gu H, Yu S, Li L, Zhao X. Use of Topical 0.01% Atropine for Controlling Near Work-Induced Transient Myopia: A Randomized, Double-Masked, Placebo-Controlled Study. J Ocul Pharmacol Ther. 2020 Mar;36(2):97-101. doi: 10.1089/jop.2019.0062. Epub 2019 Dec 3.
- Background: PubMed 23303884Chan AW, Tetzlaff JM, Gotzsche PC, Altman DG, Mann H, Berlin JA, Dickersin K, Hrobjartsson A, Schulz KF, Parulekar WR, Krleza-Jeric K, Laupacis A, Moher D. SPIRIT 2013 explanation and elaboration: guidance for protocols of clinical trials. BMJ. 2013 Jan 8;346:e7586. doi: 10.1136/bmj.e7586.
- Background: PubMed 35073496Jimenez R, Redondo B, Galan T, Machado P, Molina R, Vera J. Impact of dual-focus soft contact lens wear on near work-induced transient myopia. Clin Exp Optom. 2023 Apr;106(3):296-302. doi: 10.1080/08164622.2022.2029684. Epub 2022 Jan 24.
- Background: PubMed 19515645Chan CW, Wong D, Lam CL, McGhee S, Lai WW. Development of a Chinese version of the National Eye Institute Visual Function Questionnaire (CHI-VFQ-25) as a tool to study patients with eye diseases in Hong Kong. Br J Ophthalmol. 2009 Nov;93(11):1431-6. doi: 10.1136/bjo.2009.158428. Epub 2009 Jun 9.
- Individual participant dataSharing planned: Yes. The study's findings will be shared regardless of the effect's direction. All possible beneficiaries of the research, including patients, carers, family, doctors, advisory boards, and medical boards, will receive trial data. Publications in high-impact, open-access medical journals and talks at national and international medical conferences will serve this purpose.
Related trials for Myopia
Recruiting
Managing Premyopia in Chinese Children Using Artificial Intelligence Assisted Defocus Incorporated Multiple Segments Based Spectacle Lens: a Randomized Controlled Clinical Trial
Pre-myopia, Myopia
Not yet recruiting
BRIGHT-LIGHT: Studying Red Light Therapy for Severe Short-Sightedness or Short-Sightedness That Worsens Despite Standard Treatment
Myopia, Myopia Progressing
Not yet recruiting
Clinical Performance and Outcomes After Toric Lens Transition
Astigmatism
Active, not recruiting
Effect of IOP Lowering on Progressive HM
High Myopia, Intraocular Pressure
Recruiting
Evaluation of a New Laser Refractive Vision Correction Using the TENEO™ 317 Model 2
Hyperopia and Myopia
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
2 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing 0.01% atropine and 0.9% sodium chloride in people with Myopia, run by He Eye Hospital at 2 sites in China.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 29 Nov 2023. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 2 sites in China. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Nearwork-induced transient myopia (NITM) in diopter (time frame: At baseline, week 4, week 12, week 24, week 36, and week 48). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT06034366, which also lists 14 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Nov 2023.