Trial reportThe Lancet. Neurology2010
Gene delivery of AAV2-neurturin for Parkinson's disease: a double-blind, randomised, controlled trial.
Trial report in The Lancet. Neurology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00400634 (Multicenter, Randomized, Double-Blind, Sham Surgery-Controlled Study of CERE-120), which is not on this map. Cited by 303 papers, 4 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Multicenter, Randomized, Double-Blind, Sham Surgery-Controlled Study of CERE-120 (Adeno-Associated Virus Serotype 2 [AAV2]-Neurturin [NTN]) to Assess the Efficacy and Safety of Bilateral Intraputaminal (IPu) Delivery in Subjects With Idiopathic Parkinson's Disease
Who cites it
303 citing papers in PubMed, 4 syntheses or guidelines pooled it, 673 citations in OpenAlex.
- A Systematic Review on Disease-Modifying Therapies in Parkinsonian Disorders.Clinical pharmacology and therapeutics · 2026Pooled it
- Gene Therapy in Movement Disorders: A Systematic Review of Ongoing and Completed Clinical Trials.Frontiers in neurology · 2021Pooled it
- Pooled it
- Placebo effects in trials evaluating 12 selected minimally invasive interventions: a systematic review and meta-analysis.BMJ open · 2015Pooled it
- Randomized trial of intermittent intraputamenal glial cell line-derived neurotrophic factor in Parkinson's disease.Brain : a journal of neurology · 2019Trial
- Long-Term Follow-Up of a Phase I/II Study of ProSavin, a Lentiviral Vector Gene Therapy for Parkinson's Disease.Human gene therapy. Clinical development · 2018Trial
- Nerve Growth Factor Gene Therapy: Activation of Neuronal Responses in Alzheimer Disease.JAMA neurology · 2015Trial
- A Phase 1 Study of Convection-Enhanced Delivery of Intraputaminal AAV2-GDNF in Advanced Parkinson's Disease.Movement disorders : official journal of the Movement Disorder Society · 2026Article
- AAV2 capsid clearance and neuronal trafficking dynamics in the central nervous system.Gene therapy · 2026Article
- Dual-Pathway Astrocyte Failure in Parkinson's Disease: Therapeutic Targeting of Nrf2/TFEB Suppression and cGAS-STING/Ferroptosis Activation.Molecular neurobiology · 2026Review
- Dual-target gene therapy in Parkinson's disease: a multicenter phase 1 trial.Nature medicine · 2026Article
- Trends in the Engineering of Adeno-Associated Virus (AAV) for Precision Gene Delivery to the Central Nervous System (CNS).International journal of molecular sciences · 2026Review
- Clinical GDNF delivery methods for Parkinson's disease.Journal of Parkinson's disease · 2026Review
- Astrocytic dysfunction in Parkinson's disease pathogenesis: focusing on alpha-synuclein.Inflammopharmacology · 2026Review
- Comparison of AAV9-driven motor neuron transduction following different CNS-directed delivery methods in mice.Scientific reports · 2026Article
- Application of Neurotrophic Factors as a Therapeutic Approach for Neurodegenerative Diseases.Experimental neurobiology · 2025Review
- Advances and Challenges in Adeno-Associated Virus Gene Therapy Applications of Localized Delivery Strategies.Current medical science · 2025Review
- Investigational Gene Therapies for Parkinson's Disease.CNS drugs · 2025Review
- Temperature-modulated separation of therapeutic cells, viral vectors, and exosomes using functional polymers.Analytical sciences : the international journal of the Japan Society for Analytical Chemistry · 2025Review
- Intraputaminal Delivery of Adeno-Associated Virus Serotype 2-Glial Cell Line-Derived Neurotrophic Factor in Mild or Moderate Parkinson's Disease.Movement disorders : official journal of the Movement Disorder Society · 2025Article
243 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
26 authors at 11 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIn an open-label phase 1 trial, gene delivery of the trophic factor neurturin via an adeno-associated type-2 vector (AAV2) was well tolerated and seemed to improve motor function in patients with advanced Parkinson's disease. We aimed to assess the safety and efficacy of AAV2-neurturin in a double-blind, phase 2 randomised trial.
methodsWe did a multicentre, double-blind, sham-surgery controlled trial in patients with advanced Parkinson's disease. Patients were randomly assigned (2:1) by a central, computer generated, randomisation code to receive either AAV2-neurturin (5·4 × 10¹¹ vector genomes) injected bilaterally into the putamen or sham surgery. All patients and study personnel with the exception of the neurosurgical team were masked to treatment assignment. The primary endpoint was change from baseline to 12 months in the motor subscore of the unified Parkinson's disease rating scale in the practically-defined off state. All randomly assigned patients who had at least one assessment after baseline were included in the primary analyses. This trial is registered at ClinicalTrials.gov, NCT00400634.
resultsBetween December, 2006, and November, 2008, 58 patients from nine sites in the USA participated in the trial. There was no significant difference in the primary endpoint in patients treated with AAV2-neurturin compared with control individuals (difference -0·31 [SE 2·63], 95% CI -5·58 to 4·97; p=0·91). Serious adverse events occurred in 13 of 38 patients treated with AAV2-neurturin and four of 20 control individuals. Three patients in the AAV2-neurturin group and two in the sham surgery group developed tumours.
interpretationIntraputaminal AAV2-neurturin is not superior to sham surgery when assessed using the UPDRS motor score at 12 months. However, the possibility of a benefit with additional targeting of the substantia nigra and longer term follow-up should be investigated in further studies.
fundingCeregene and Michael J Fox Foundation for Parkinson's Research.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.