NCT02771366

Brief Summary

Cerebral energy metabolism declines with advanced aging, and is implicated in age-related cognitive decline, Alzheimer's disease (AD), and other forms of neurodegenerative disease (Parkinson's disease). In addition, age-associated increase in systemic and neuroinflammation is associated with a higher likelihood for development of Alzheimer's disease and neurodegenerative disease in older adults. Furthermore, decreased cerebral energy metabolism and increased neuroinflammation are both associated with deficits in cognitive function, even in the absence of neurodegenerative disease. In older adults, decreased cognition is strongly associated with the development of AD, increased rates of hospitalization, loss of functional independence, and increased mortality rate. Novel methods for preventing cognitive decline and neurodegenerative diseases in older adults are needed the world's aging population. Current research suggests that nutrients in fruits and vegetables produce strong anti-oxidant and anti-proliferative effects. Most Americans are not consuming the minimum recommendations of fruits and vegetables per day to receive these benefits. Whole food-based nutritional products, such as Fermented Papaya Product (FPP), may provide a healthy alternative for individuals. FPP, which is made by bio-fermentation of Carica papaya, has been found to enhance antioxidant protection and to decrease DNA damage in healthy older adults. Furthermore, if FPP increases cerebral energy metabolism and down-regulates neuroinflammation, with resulting effects on cognition, dietary supplementation with FPP may have preventative benefits for age-related cognitive conditions, including MCI, AD, Parkinson's disease and other neurodegenerative diseases.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
30

participants targeted

Target at P25-P50 for phase_2

Timeline
Completed

Started Nov 2016

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 11, 2016

Completed
2 months until next milestone

First Posted

Study publicly available on registry

May 13, 2016

Completed
6 months until next milestone

Study Start

First participant enrolled

November 1, 2016

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 27, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 27, 2018

Completed
1.2 years until next milestone

Results Posted

Study results publicly available

October 17, 2019

Completed
Last Updated

October 17, 2019

Status Verified

October 1, 2019

Enrollment Period

1.7 years

First QC Date

March 11, 2016

Results QC Date

July 23, 2019

Last Update Submit

October 15, 2019

Conditions

Keywords

neuroinflammationcognitive functionaging adults

Outcome Measures

Primary Outcomes (1)

  • Magnetic Resonance Spectroscopy (MRS) Will Measure a Change in Cerebral Energy Function in Brain Tissue

    Cerebral energy metabolism will be defined by phosphorus magnetic resonance spectroscopy markers of ATP/mitochondrial function in brain tissue (α-ATP, β-ATP, and γ-ATP). Within-subject crossover design; difference between drug and placebo arms. Treatment duration: weeks 0-8 followed by washout then weeks 14 to 22. Data reported in the outcome measures data table represents difference between pre and post measurement values (post-pre) for each arm.

    Participants received MRS at weeks 0, 8, 14, and 22. Data reported in the outcome measures data table represents difference between pre and post measurement values (post-pre) for each arm.

Study Arms (2)

Fermented Papaya Preparation, then granulated sugar

EXPERIMENTAL

Participants will start taking the Fermented Papaya Preparation (FPP) three times per day, for 8 week. Then there will be a 6 week washout period. After the washout period the participants will start taking the granulated sugar in the same way as the FPP was taken. In addition, the following test will be performed: Magnetic Resonance Spectroscopy (MRS) of the brain, functional magnetic resonance imaging (fMRI), RAND 36-item Health Survey (SF-36) questionnaire, Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-Fatigue) blood samples,

Drug: Fermented Papaya PreparationOther: Granulated Sugar

Granulated Sugar, then Fermented Papaya Preparation

PLACEBO COMPARATOR

Participants will start taking the granulated sugar three times per day, for 8 week. Then there will be a 6 week washout period. After the washout period the participants will start taking the Fermented Papaya Preparation (FPP) in the same way as the granulated sugar was taken. In addition, the following test will be performed: Magnetic Resonance Spectroscopy (MRS) of the brain, functional magnetic resonance imaging (fMRI), RAND 36-item Health Survey (SF-36) questionnaire, Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-Fatigue) blood samples,

Drug: Fermented Papaya PreparationOther: Granulated Sugar

Interventions

This will be provided in a 3g sachet for use 3 times a day 30-40 minutes before a meal. This will be done for 8 weeks.

Also known as: FPP
Fermented Papaya Preparation, then granulated sugarGranulated Sugar, then Fermented Papaya Preparation

This will be provided in a 3g sachet for use 3 times a day 30-40 minutes before a meal. This will be done for 8 weeks.

Also known as: Placebo
Fermented Papaya Preparation, then granulated sugarGranulated Sugar, then Fermented Papaya Preparation

Eligibility Criteria

Age65 Years - 100 Years
Sexall
Healthy VolunteersYes
Age GroupsOlder Adult (65+)

You may qualify if:

  • Willing and able to participate in all aspects of the study;
  • Not confined to a wheelchair;
  • Evidence of cognitive aging based on Montreal Cognitive Assessment score less than or equal to 28, but greater than or equal to 23;
  • Presence of elevated levels of systemic inflammation at screening (C-reactive protein levels \> 1.0)
  • Able to swallow study product as directed.

You may not qualify if:

  • Failure to give consent;
  • Active treatment for cancer (\< 3 years);
  • Stroke (\< 6 mo);
  • Serious heart condition, peripheral vascular disease, coronary artery disease (myocardial infarction\<6 mo), Class III, IV Congestive Heart Failure;
  • Dementia (e.g., Alzheimer's disease)
  • Severe anemia (Hgb \< 8.0 g/dL);
  • Any blood or bleeding disorders;
  • Liver or renal disease;
  • Diabetes;
  • Severe osteoarthritis;
  • Anticoagulant therapy (aspirin use is permitted);
  • Parkinson's disease;
  • Severe psychiatric disease or psychological disorder (e.g., severe depression, bi-polar disorder, schizophrenia) or current use of antipsychotics;
  • Current use of anabolic medications (e.g., growth hormone or testosterone) or anticholinesterase inhibitor (i.e., Aricept);
  • High amounts of physical activity (i.e., running, bicycling, etc.) \> 120 min/week;
  • +9 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Florida Institute on Aging

Gainesville, Florida, 32610, United States

Location

MeSH Terms

Conditions

Neuroinflammatory Diseases

Interventions

fermented papaya preparation

Condition Hierarchy (Ancestors)

Nervous System DiseasesInflammationPathologic ProcessesPathological Conditions, Signs and Symptoms

Results Point of Contact

Title
Adam Woods, Ph.D.
Organization
University of Florida

Study Officials

  • Adam Woods, Ph.D

    University of Flrodia

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 11, 2016

First Posted

May 13, 2016

Study Start

November 1, 2016

Primary Completion

July 27, 2018

Study Completion

July 27, 2018

Last Updated

October 17, 2019

Results First Posted

October 17, 2019

Record last verified: 2019-10

Data Sharing

IPD Sharing
Will not share

Locations