# Extension Study of NT-501 Ciliary Neurotrophic Factor (CNTF) Implant for Macular Telangiectasia (MacTel)

> **NCT03071965** · PHASE2 · COMPLETED · sponsor: **Neurotech Pharmaceuticals** · enrollment: 70 (actual)

## Conditions studied

- MacTel (Macular Telangiectasia) Type 2

## Interventions

- **BIOLOGICAL:** Ciliary neurotrophic factor (CNTF)
- **PROCEDURE:** Surgery
- **PROCEDURE:** Surgery

## Key facts

- **NCT ID:** NCT03071965
- **Lead sponsor:** Neurotech Pharmaceuticals
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2017-05-12
- **Primary completion:** 2021-05-11
- **Final completion:** 2021-05-11
- **Target enrollment:** 70 (ACTUAL)
- **Last updated:** 2025-05-09


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03071965

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03071965, "Extension Study of NT-501 Ciliary Neurotrophic Factor (CNTF) Implant for Macular Telangiectasia (MacTel)". Retrieved via AI Analytics 2026-06-23 from https://api.ai-analytics.org/clinical/NCT03071965. Licensed CC0.

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