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. 2020 Oct 30;17(4):1539–1562. doi: 10.1007/s13311-020-00940-4

Table 3.

Summary of GF GT trials to date

NCT number, sponsor and site Virus and dosing Study details and outcomes

NCT00252850

Sponsor: Ceregene

Site: Univ. California, San Francisco, and Rush, Chicago

Duration: 12 months

Status: completed

Refs: [85]

AAV2-NRTN (CERE-120)

Putamen, bilateral

Low dose: 1·3 × 1011 vg/patient

High dose: 5.4 × 1011 vg/patient

Infusion: 8 × 5μl deposits/side, split between 4 needle tracks/side

iMRI—no

Category: phase 1, safety and dosing

Patients: 12 subjects

Disease stage: advanced PD; avg. 11 years

Primary: safe and well tolerated

Secondary: no significant benefits in OFF UPDRS3 at 12 months and 18F-L-DOPA PET at 6 and 12 months

NCT00400634

Sponsor: Ceregene

Site: multicenter

Duration: 12 months

Status: completed

Refs: (86)

AAV2-NRTN (CERE-120)

Putamen, bilateral

Dose: 5.4 × 1011 vg/patient

Infusion: 8 × 5μl deposits/side (40 μl)

4 needle tracks/side, 2 deposits/track

iMRI—no

Category: phase 2, randomized, double-blind, sham-surgery–controlled

Patients: 58 subjects–38/20 in surgery/sham arms

Disease stage: advanced PD; avg. 9.5/10.0 years, in active/sham arms

Primary outcome: nonsignificant improvements over sham surgery in OFF UPDRS3

Secondary outcome: nonsignificant trends to improvement UPDRS; timed motor tests; dyskinesia rating scale; diaries; PDQ-39, SF-36, and clinical global impression

NCT00985517

Sponsor: Ceregene

Site: multicenter

Duration: 15–24 months

Status: completed

Refs: (87)

AAV2-neurturin (CERE-120)

Putamen and SN, bilateral

Dose: 2.4 × 1011 vg/SNc; 1.0 × 1012 vg/putamen

Infusion: two deposits of 15 μl/SNc; one deposit of 50 μl in each of 3 putaminal tracts

iMRI—no

Trial category: phase 2, randomized, double-blind, sham-surgery–controlled

Patients: 48 patients, 23/25 treated/sham arms

Disease stage: advanced PD; avg. duration 7.8/8.6 years in treatment/sham arms

Primary: no significant change in OFF UPDRS part 3 at 15 months

Secondary: nonsignificant changes in other UPDRS, diaries, PDQ-39

NCT01621581

Sponsor: NIHCC

Site: Bethesda

Status: active, NR

Duration: 18 months

Refs: (88)

AAV2-GDNF

Putamen, bilateral

Low dose: 4.5 × 1010 vg per putamen

Medium dose: 1.5 × 1011 vg/putamen

High dose: 4.5 × 1011 vg/putamen

450 μl/putamen

iMRI—yes

Trial category: phase 1, safety and dose finding, 4 dose levels

Patients: 25 subjects; three dose levels

Disease stage: > 5 years disease

Primary: safety and tolerability. Well tolerated. Six SAEs, none attributable to study drug; all resolved

Secondary: Nonsignificant improvements in 18F-F-DOPA PET at 18 months. No significant change in UPDRS, LED at 6/18 months; PET scan at 18 months

NCT04167540

Sponsor: Brain Neurotherapy Bio, Inc.

Site: University of California NYR Ohio,

Duration: TBA

Status: recruiting

REFS: clinicaltrials.gov

AAV2-GDNF

Putamen, bilateral

iMRI—yes

Trial category: phase 1, safety

Patients: 12 subjects, 2 cohorts

Disease stage: earlier (< 5 years) and later (> 5 years, moderate–severe disease)

Primary: safety tolerability over 5 years

Secondary: UPDRS, nonmotor scores, and DAT scan changes over 18 months