Independent directory Public ClinicalTrials.gov records United States
Clear filters
ClinicalTrials.gov public records Last synced Sep 5, 2026, 8:28 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–18 of 18 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Macular Telangiectasia Type 2
Interventions
NT-501 CNTF Implant
Combination Product
Lead sponsor
Neurotech Pharmaceuticals
Industry
Eligibility
21 Years to 80 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
3
States / cities
Walnut Creek, California • Grand Rapids, Michigan • Bellaire, Texas
Conditions
Macular Telangiectasia Type 2 (MacTel)
Interventions
NT-501/revakinagene taroretcel-lwey
Combination Product
Lead sponsor
Neurotech Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
234 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2032
U.S. locations
23
States / cities
La Jolla, California • Los Angeles, California • Palo Alto, California + 19 more
Completed Phase 1Phase 2 Interventional Results available

CNTF Implants for CNGB3 Achromatopsia

NCT01648452
Conditions
Eye Disease, Achromatopsia
Interventions
NT-501 CNTF-releasing implant
Biological
Lead sponsor
National Eye Institute (NEI)
NIH
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Macular Telangiectasia Type 2
Interventions
NT-501, Sham
Combination Product · Procedure
Lead sponsor
Neurotech Pharmaceuticals
Industry
Eligibility
21 Years to 80 Years
Enrollment
119 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
22
States / cities
Beverly Hills, California • Colorado Springs, Colorado • Atlanta, Georgia + 18 more
Conditions
Glaucoma
Interventions
NT-501, Sham comparator
Drug · Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Palo Alto, California
Conditions
Retinitis Pigmentosa
Interventions
Ciliary Neurotrophic Factor Implant NT-501
Drug
Lead sponsor
National Eye Institute (NEI)
NIH
Eligibility
Not listed
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Retinitis Pigmentosa
Interventions
Low Dose NT-501, High Dose NT-501
Combination Product
Lead sponsor
Neurotech Pharmaceuticals
Industry
Eligibility
18 Years to 68 Years
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
11
States / cities
Beverly Hills, California • Sacramento, California • San Francisco, California + 8 more
Conditions
Retinitis Pigmentosa
Interventions
NT-501
Drug
Lead sponsor
Neurotech Pharmaceuticals
Industry
Eligibility
18 Years to 64 Years
Enrollment
73 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
12
States / cities
Beverly Hills, California • Sacramento, California • San Francisco, California + 8 more
Conditions
Macular Telangiectasia Type 2 (MacTel)
Interventions
NT-501, Sham Procedure
Combination Product · Procedure
Lead sponsor
Neurotech Pharmaceuticals
Industry
Eligibility
21 Years to 80 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
16
States / cities
La Jolla, California • Los Angeles, California • Palo Alto, California + 13 more
Conditions
Nonexudative Age-Related Macular Degeneration, Unspecified Eye, Intermediate Dry Stage
Interventions
High Dose NT-501 implant, Low Dose NT-501 implant, Sham
Combination Product · Other
Lead sponsor
Neurotech Pharmaceuticals
Industry
Eligibility
50 Years and older
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
8
States / cities
Beverly Hills, California • Hollywood, Florida • Miami, Florida + 5 more
Conditions
Glaucoma
Interventions
NT-501 ECT implant, Sham
Drug · Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2026
U.S. locations
1
States / cities
Palo Alto, California
Conditions
Ischemic Optic Neuropathy/Optic Nerve Stroke
Interventions
NT-501 CNTF Implant
Drug
Lead sponsor
Jeffrey L Goldberg
Other
Eligibility
40 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Miami, Florida
Conditions
Idiopathic Juxtafoveal Telangiectasia
Interventions
NT-501 implant
Biological
Lead sponsor
Neurotech Pharmaceuticals
Industry
Eligibility
21 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
2
States / cities
Los Angeles, California • Cleveland, Ohio
Conditions
Macular Telangiectasia Type 2
Interventions
NT-501 CNTF implant
Combination Product
Lead sponsor
Neurotech Pharmaceuticals
Industry
Eligibility
18 Years to 85 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
7
States / cities
Los Angeles, California • Washington D.C., District of Columbia • Miami, Florida + 4 more
Conditions
Macular Telangiectasia Type 2
Interventions
Ciliary neurotrophic factor (CNTF), Sham procedure, NT-501 Implant, NT-501 Implant procedure
Biological · Procedure · Device
Lead sponsor
Neurotech Pharmaceuticals
Industry
Eligibility
21 Years to 80 Years
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
8
States / cities
Los Angeles, California • Miami, Florida • Atlanta, Georgia + 5 more
Conditions
MacTel (Macular Telangiectasia) Type 2
Interventions
Ciliary neurotrophic factor (CNTF), Surgery
Biological · Procedure
Lead sponsor
Neurotech Pharmaceuticals
Industry
Eligibility
21 Years to 80 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
8
States / cities
Los Angeles, California • Miami, Florida • Atlanta, Georgia + 5 more
Conditions
Retinitis Pigmentosa, Usher Syndrome Type 2, Usher Syndrome Type 3
Interventions
NT-501, Sham
Drug · Procedure
Lead sponsor
Neurotech Pharmaceuticals
Industry
Eligibility
18 Years to 55 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2019
U.S. locations
1
States / cities
San Francisco, California
Conditions
Glaucoma, Primary Open Angle
Interventions
NT-501 CNTF Implant
Drug
Lead sponsor
Jeffrey L Goldberg
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Miami, Florida