# Safety and Effectiveness Study of 532nm Laser Subthreshold Panretinal Photocoagulation for Severe NPDR

> **NCT01759121** · NA · UNKNOWN · sponsor: **Sun Yat-sen University** · enrollment: 84 (estimated)

## Conditions studied

- Severe Non-proliferative Diabetic Retinopathy

## Interventions

- **RADIATION:** T-PRP
- **RADIATION:** S-PRP

## Key facts

- **NCT ID:** NCT01759121
- **Lead sponsor:** Sun Yat-sen University
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2016-03
- **Primary completion:** 2018-12
- **Final completion:** 2018-12
- **Target enrollment:** 84 (ESTIMATED)
- **Last updated:** 2017-10-13


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01759121

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01759121, "Safety and Effectiveness Study of 532nm Laser Subthreshold Panretinal Photocoagulation for Severe NPDR". Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/clinical/NCT01759121. Licensed CC0.

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