NCT00597376

Brief Summary

The purpose of this six-month research study is to determine if Cerefolin NAC reduces levels of substances in the blood that may be associated with thinking ability and the health of brain cells in subjects with memory concerns when compared to a standard multivitamin. Cerefolin NAC is available as a dietary supplement via a prescription from a physician. The multivitamin used in the study contains the Recommended Daily Intake recommended for older persons.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
104

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Nov 2007

Longer than P75 for not_applicable

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

Study Start

First participant enrolled

November 1, 2007

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

January 9, 2008

Completed
9 days until next milestone

First Posted

Study publicly available on registry

January 18, 2008

Completed
3.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2011

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2011

Completed
2.1 years until next milestone

Results Posted

Study results publicly available

May 23, 2013

Completed
Last Updated

May 23, 2013

Status Verified

May 1, 2013

Enrollment Period

3.5 years

First QC Date

January 9, 2008

Results QC Date

January 25, 2013

Last Update Submit

May 20, 2013

Conditions

Keywords

memory loss

Outcome Measures

Primary Outcomes (1)

  • Six Month Blood Levels of Homocysteine, Glutathione, and the Ratio of Aβ42 to Aβ40 (as a Percent of Baseline Levels) After Daily Intake of Cerefolin NAC Plus a Multivitamin Versus a Multivitamin Only

    Primary outcome markers were plasma homocysteine (tHcy), glutathione, and the ratio of amyloid proteins, Aβ42 and Aβ40. Plasma tHcy and glutathione were assayed using a high performance liquid chromatography (HPLC) with fluorescence detection method. Enzyme-linked immunosorbent assays (ELISA) were used for Aβ42 (Wako Chemicals USA, Inc., Richmond, VA) and Aβ40 (Invitrogen Corporation, Canarillo, CA) detection. Primary analyses utilized Last Observation Carried Forward (LOCF) to assess the primary biomarker level at 6 months versus baseline. Six month levels in biomarker outcomes were compared using t-tests of the logarithmically transformed values and the antilogarithm was applied to the SDs obtain 95% confidence intervals (95% CIs). A significant difference between treatments was needed for at least one of the primary outcome variables (tHcy, glutathione, or the Aβ42 to Aβ40 ratio) to declare the study positive.

    6 months

Secondary Outcomes (2)

  • Tolerability of Cerefolin NAC and a Multivitamin Versus a Multivitamin Only

    6 months

  • Six Month Levels of Inflammation and Oxidative Stress Markers(as a Percent of Baseline Levels) After Daily Treatment With Cerefolin NAC and a Multivitamin or a Multivitamin Only

    6 months

Study Arms (2)

1

EXPERIMENTAL

On Cerefolin NAC and open-label multivitamin supplement

Other: Cerefolin NAC (a medical food)

2

PLACEBO COMPARATOR

On placebo and open label multivitamin supplement

Other: Cerefolin NAC placebo

Interventions

Cerefolin NAC one tablet each day

1

Placebo tablet once a day

2

Eligibility Criteria

Age60 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age greater than 60;
  • Memory complaints as defined by two questions:
  • "Do The subject think your have memory problems?"; and,
  • "Has there been a decline in your memory over the last 10 years?"
  • Fluency in English;
  • Ability to ingest oral medications; and,
  • Willing to replace current vitamin intake with a standardized multivitamin provided for the study.

You may not qualify if:

  • Clinical stroke or Parkinson's disease;
  • Taking FDA approved drug for symptomatic treatment of Alzheimer's disease (Aricept, Razadyne, Exelon, and/or Namenda);
  • History of significant renal insufficiency (creatinine ≥1.5);
  • History of renal stones or peptic ulcer disease;
  • Use of vitamin supplements containing more than 400mcg of folic acid per day within 2 months of Screen Visit;
  • As determined by the study physician, clinically significant serum folate and vitamin B12 deficiency on screening blood tests that would require further clinical evaluation and treatment
  • As determined by the study physician, clinically significant medical conditions, physical exam findings or abnormal blood tests at screening that would require further clinical evaluation and treatment
  • B12 injections 6 months prior to the Screen Visit;
  • Confirmed clinical diagnosis of Mild Cognitive Impairment (MCI), vascular dementia or Alzheimer's Disease (AD); and,
  • Known hypersensitivity to L-methylfolate, methyl-cobalamin or N-acetylcysteine.
  • Use of any other investigational agent used during the 30 days prior to Screening.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Rush Alzheimer's Disease Center

Chicago, Illinois, 60612, United States

Location

Related Links

MeSH Terms

Conditions

Memory Disorders

Condition Hierarchy (Ancestors)

Neurobehavioral ManifestationsNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Limitations and Caveats

No limitations or caveats to report.

Results Point of Contact

Title
Raj C. Shah, MD
Organization
Rush University Medical Center

Study Officials

  • Raj C Shah, MD

    Rush University Medical Center

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor, Family Medicine and Rush Alzheimer's Disease Center

Study Record Dates

First Submitted

January 9, 2008

First Posted

January 18, 2008

Study Start

November 1, 2007

Primary Completion

May 1, 2011

Study Completion

May 1, 2011

Last Updated

May 23, 2013

Results First Posted

May 23, 2013

Record last verified: 2013-05

Locations