Clinical trial NCT02968433: The Stanford Parkinson's Disease Plasma Study
Official title: The Stanford Parkinson's Disease Plasma (SPDP) Study: Intravenously-Administered Plasma From Young Donors for Treatment of Moderate Parkinson's Disease
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE1
Conditions: Parkinson Disease(PD)
Keywords: Young Male Plasma
Lead sponsor: Stanford University
Sponsor class: OTHER
First posted: 2016-11-18
Enrollment: 16
Sex: ALL
Minimum age (years): 50
Maximum age (years): 80
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: The purpose of this study is to demonstrate that young plasma infusions can be performed safely in patients with Parkinson's Disease (PD). Secondary outcomes will include behavioral and laboratory data that will support the next study that will inquire whether young plasma infusions improve or slow the progression of cognitive, mood and/or motor impairment and rate markers of the disease.

Detailed description: Parkinson's disease (PD) is a neurodegenerative disease that affects over 1.6 million people in the United States and whose incidence increases with age, affecting over 1% of people over the age of 65. The neuropathological processes involved in PD are widespread throughout the brain, and are reflected in a constellation of motor, cognitive, mood and other non-motor symptoms. Treatments to date have largely focused on dopamine replacement strategies or deep brain stimulation, both symptomatic treatments.

As neurodegenerative diseases progress, there are major changes throughout the body and brain. These changes are transmitted in the body via the circulatory system between organs, tissues and cells. Recent findings from multiple laboratories have shown that infusions of young plasma into aging rodents can have beneficial effects on cognitive functions. This suggests that the circulating components of plasma can improve cognitive and disease-relevant symptoms. This has motivated the field to treat multiple disorders with blood products and their constituent active components.

The established safety of blood transfusions allows the investigators to test whether infusions of young plasma can ease the neurological symptoms in human subjects with neurodegenerative diseases. A related study of plasma infusions has already been completed at Stanford in patients with Alzheimer's disease (ClinicalTrials.gov identifier NCT02256306).

The investigator proposes to test the safety and efficacy of transfusing young plasma into PD participants, in order to establish its effects on motor and cognitive functions in participants in a Phase 1 study. The successful completion of this study will inform the design of future, larger and multicenter studies with the goal to determine whether infusions of young plasma can ameliorate the neurodegenerative symptoms and underlying pathophysiology in Parkinson's disease.

Eligibility criteria: Inclusion Criteria:

* A diagnosis of clinically probable or established Parkinson's Disease (MDS criteria)
* Subject must be on a stable dose of dopaminergic medication and/or Deep Brain Stimulation (DBS) parameters for at least 4 weeks prior to screening and for the duration of the study
* Subject must be competent to sign consent
* Subject must be willing to commit to being available for testing and infusions for 6 consecutive weeks (2 testing consecutive weeks, 4 infusion consecutive weeks) followed by two visits a month after final infusion.
* The availability of a study partner who knows the patient well and is willing to accompany the subject to all trial (optional if participant is able to consent and travel by self)

Exclusion Criteria:

* The participation in any other interventional clinical trial
* The inability to travel to Stanford
* Inability to walk without assistance in the off or on medication state
* The clinically determined presence of dementia
* A clinical suspicion/diagnosis of Multiple System Atrophy (MSA), Progressive Supranuclear Palsy (PSP), Lewy Body Dementia (LBD), Essential Tremor (ET)
* Subject's pregnancy or likelihood of pregnancy within the next 6 months.
* Subject's positive test results for Hepatitis B, Hepatitis C or HIV at screening
* Any other condition or situation that the investigator believes may interfere with the safety of the subject or the intent and conduct of the study
* Subject's medical history of:

Stroke Anaphylaxis Gout- may cause an increase in uric acid Prior adverse reaction to any human blood product Any history of a blood coagulation disorder or hypercoagulability Congestive heart failure Uncontrolled hypertension Renal failure Prior intolerance to intravenous fluids Recent history of uncontrolled atrial fibrillation immunoglobulin A deficiency (by history)

* Subject's relation to medications or other treatments:
* Any concurrent use of an anticoagulant therapy. Antiplatelet drugs (e.g., aspirin or clopidogrel) are acceptable.
* The use of Inosine, which may alter urate levels
* Initiation or change in the dosage of a cholinesterase inhibitor or memantine during the trial. A participant already on a cholinesterase inhibitor or memantine must be on a stable dose for at least one month prior to Screening.
* Concurrent participation in another interventional treatment trial for Parkinson's disease. If there was prior participation, the last dose of the investigational agent must have been at least 6 months prior to Screening.
* Treatment with any human blood product, including intravenous immunoglobulin, during the 6 months prior to Screening or during the trial.
* Concurrent daily treatment with benzodiazepines, typical or atypical antipsychotics, long-acting opioids, or other medications that, in the investigator's opinion, interfere with cognition. Intermittent treatment with short-acting benzodiazepines or atypical antipsychotics may be permitted, provided that no dose is administered within the 72 hours preceding any cognitive assessment.

Primary outcomes:
measure: Number of Related and Unrelated Adverse Events
timeFrame: 8 weeks
Secondary outcomes:
Other outcomes:
measure: Change in Quantitative Data of Cognitive Ability (Neuropsychological Battery)
timeFrame: 8 weeks
measure: Change in Quality of Life
timeFrame: 8 weeks
measure: Change in Quantitative Data of Motor Movements up to 8 Weeks
timeFrame: 8 weeks
Locations:
city: Stanford
country: United States
facility: Stanford Movement Disorders Clinic
state: California
Study officials:
affiliation: Stanford University
name: Helen Bronte-Stewart, MS, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Sha SJ, Deutsch GK, Tian L, Richardson K, Coburn M, Gaudioso JL, Marcal T, Solomon E, Boumis A, Bet A, Mennes M, van Oort E, Beckmann CF, Braithwaite SP, Jackson S, Nikolich K, Stephens D, Kerchner GA, Wyss-Coray T. Safety, Tolerability, and Feasibility of Young Plasma Infusion in the Plasma for Alzheimer Symptom Amelioration Study: A Randomized Clinical Trial. JAMA Neurol. 2019 Jan 1;76(1):35-40. doi: 10.1001/jamaneurol.2018.3288.
citation: Villeda SA, Luo J, Mosher KI, Zou B, Britschgi M, Bieri G, Stan TM, Fainberg N, Ding Z, Eggel A, Lucin KM, Czirr E, Park JS, Couillard-Despres S, Aigner L, Li G, Peskind ER, Kaye JA, Quinn JF, Galasko DR, Xie XS, Rando TA, Wyss-Coray T. The ageing systemic milieu negatively regulates neurogenesis and cognitive function. Nature. 2011 Aug 31;477(7362):90-4. doi: 10.1038/nature10357.
citation: Villeda SA, Plambeck KE, Middeldorp J, Castellano JM, Mosher KI, Luo J, Smith LK, Bieri G, Lin K, Berdnik D, Wabl R, Udeochu J, Wheatley EG, Zou B, Simmons DA, Xie XS, Longo FM, Wyss-Coray T. Young blood reverses age-related impairments in cognitive function and synaptic plasticity in mice. Nat Med. 2014 Jun;20(6):659-63. doi: 10.1038/nm.3569. Epub 2014 May 4.
citation: Parker JE, Martinez A, Deutsch GK, Prabhakar V, Lising M, Kapphahn KI, Anidi CM, Neuville R, Coburn M, Shah N, Bronte-Stewart HM. Safety of Plasma Infusions in Parkinson's Disease. Mov Disord. 2020 Nov;35(11):1905-1913. doi: 10.1002/mds.28198. Epub 2020 Jul 7.