NCT03568968

A Randomized Controlled Trial of Nicotinamide Riboside Supplementation in Early Parkinson's Disease

A Randomized Controlled Trial of Nicotinamide Riboside Supplementation in Early Parkinson's Disease: the NOPARK Study

• Status: Completed
• Phase: Phase 3
• Study type: Interventional
• Enrollment: 410 (actual)
• Sponsor: Haukeland University Hospital · Academic / Other
• Sex: All
• Age: 35 Years
• Healthy volunteers: Not accepted

Summary

NOPARK is a double-blinded randomized controlled phase II trial, with the aim to assess the efficacy of nicotinamide adenine dinucleotide (NAD)-replenishment therapy in the form of oral nicotinamide riboside (NR) in delaying the progression of early Parkinson's disease (PD). A total of 400 persons with early stage Parkinson's disease will be enrolled, randomized on nicotinamide riboside (NR) 500mg x 2 per day or placebo, and followed for 52 weeks.

Detailed description

NOPARK is a multi-center, double-blinded randomized controlled trial, with the aim to assess the efficacy of NAD-replenishment therapy in the form of oral nicotinamide riboside (NR) in delaying the progression of early Parkinson's disease (PD). Individuals with PD (n = 400) will be recruited from multiple centers across Norway. Eligible participants must have been diagnosed with PD within 2 years of study enrollment and meet the trial's inclusion criteria. All participants will be given a standard PD-treatment regimen comprising selegiline 10 mg/day and oral levodopa (Sinemet or Madopar) at a dose of 100mg x 3, 150mg x3, or 200mg x 3 per day. The PD-treatment regimen will be frozen at baseline and remain stable throughout the duration of the study. At baseline, participants will be randomized on a 1:1 ratio on either nicotinamide riboside (NR) 500mg x 2 per day or placebo. Both the participants and the investigators will be blinded. The trial duration will be 52 weeks, during which participants will be assessed at baseline, 13, 26, 39 and 52 weeks. Measures include clinical evaluation using established scales for motor and non-motor dysfunction, as well as quality of life, 123I-N-ω-fluoropropyl-2β-carbomethoxy-3β-(4-iodophenyl) nortropane (\[¹²³I\]FP-CIT) single photon emission tomography (DaTscan), magnetic resonance imaging (MRI) of the brain, blood safety tests, and blood sampling for metabolomics, transcriptomics, and other exploratory analyses. The primary outcome of the study is the total score of the Movement Disorders Society Unified Parkinson's Disease Rating Scale (MDS-UPDRS).

Conditions

• Parkinson Disease

Interventions

Type	Name	Description
DIETARY_SUPPLEMENT	Nicotinamide Riboside	Nicotinamide Riboside 500mg administered two times a day. Given as capsules. Duration of the trial; 52 weeks.
OTHER	Placebo	Placebo drug, administered two times a day. Given as capsules. Duration of the trial; 52 weeks.

Timeline

• Start date: 2020-05-06
• Primary completion: 2025-06-17
• Completion: 2025-06-17
• First posted: 2018-06-26
• Last updated: 2025-09-26

Locations

11 sites across 1 country: Norway