ClinicalTrials.gg
CompletedNCT01745198Updated Apr 28, 2015

Effect of Cerefolin®/CerefolinNAC® on Biomarker Measurements

An observational study in Mild Cognitive Impairment, Alzheimer's Disease and Alzheimer's Disease Related Disorders, sponsored by Pamlab, Inc.. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2015-04-28.

Sponsored by Pamlab, Inc. (part of Alfasigma S.p.A.) · Observational

Study type
Observational
Model
Case-control
Time perspective
Retrospective
Enrollment
121
Ages
18 Years and older
Sex
All
01

Study summary

In a retrospective analysis of data from 1100 patients, disease-delaying effects of Cerefolin®/CerefolinNAC® were examined in terms of cognition. The purpose of the current study is to expand the retrospective study dataset by prospectively collecting additional biomarker and imaging data.

Read the detailed description

CerefolinNAC® is an orally administered prescription medical food, and is formulated as a combination of L-methylfolate calcium (as Metafolin®), methylcobalamin, and N-acetylcysteine. In a retrospective analysis, disease-delaying effects of Cerefolin®/CerefolinNAC® (CFLN) are examined in terms of cognition (measured by MCI Screen (MCIS)), and functional capacity (measured by Functional Assessment Staging Test (FAST)). - the treatment effect of CFLN on cognitive and functional measures, and on biomarker measures in patients with Alzheimer's disease and related disorders (ADRD).

The current study will expand the NAC-002b study dataset by prospectively collecting additional biomarker and imaging data in a more comprehensively assessed, matched sample of patients. This will allow more precise evaluation of cognitive and functional outcome measures, and biomarker measures will be assessed in an attempt to identify specific populations or conditions in which CFLN is most effective.

The sample will consist of patients with homocysteinemia plus past/current CFLN treatment (Treatment Group) matched to those without homocysteinemia plus no past/current B12, folate or CFLN treatment (Non-Treatment Group). Also 65 additional subjects will be recruited for the non-Treatment group, which will be used to improve the rate of decline estimates for the cognitive and functional outcome measures.

02

Conditions studied

  • Mild Cognitive Impairment
  • Alzheimer's Disease
  • Alzheimer's Disease Related Disorders

Keywords

  • homocysteinemia
  • dementia
  • depression
  • vitamin B12
  • folate
  • mild cognitive impairment
  • alzheimer's
  • homocysteine
03

In context

Cognitive Dysfunction

3,930 studies on the registry are indexed under Cognitive Dysfunction; 1,114 are open to participants now.

This study's enrollment of 121 is below the median of 150 across 989 observational studies indexed under Cognitive Dysfunction.

Browse Cognitive Dysfunction studies →

Lead sponsor

Pamlab, Inc. is the lead sponsor of 10 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patients with homocysteinemia plus past/current CFLN treatment (Treatment Group) will be matched to those without homocysteinemia plus no past/current B12, folate or CFLN treatment (Non-Treatment Group).

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • With a diagnosis of normal aging (NL), cognitive impairment or dementia not otherwise specified (CI/D), or ADRD
  • With at least one previous quantitative MRI (qMRI)
  • With at least one previous homocysteine level
  • Without homocysteinemia plus no past or current B12, folate or Cerefolin® treatment, OR with homocysteinemia plus past or current Cerefolin® treatment

Exclusion criteria

Exclusion Criteria:

Subjects who do not meet the inclusion criteria will be excluded from the study.

05

Study design

Observational model
Case-control
Time perspective
Retrospective
Enrollment
121 participants (actual)
Patient registry
No
Biospecimen retention
Samples with dna

Groups and cohorts

  • Treatment Group

    This group consists of patients diagnosed with homocysteinemia who have been treated with Cerefolin®/CerefolinNAC® in the past or are currently being treated with Cerefolin®/CerefolinNAC®.

  • Non-Treatment Group

    This group consists of patients not diagnosed with homocysteinemia who have no past or current treatment with Vitamin B12, Folate or Cerefolin®/CerefolinNAC®.

06

What researchers measure

Primary outcomes

  1. Change in rate of cognitive decline as measured by the Memory Performance Index (MPI)

    Change in MPI over time will be calculated using multiple retrospective time points.

    Time frame: Baseline to end of study (estimated average of 48 months)

Secondary outcomes

  1. Change in rate of cognitive decline as measured by the MCI Screen

    Change in MCI Screen over time will be calculated using multiple retrospective time points.

    Time frame: Baseline to end of study (estimated average of 48 months)

  2. Change in rate of cognitive decline as measured by The Consortium to Establish a Registry for Alzheimer's Disease (CERAD) Drawings

    Change in CERAD drawings over time will be evaluated using multiple retrospective time points

    Time frame: Baseline to end of study (estimated average of 48 months)

  3. Change in rate of cognitive decline as measured by Trails A & B

    Change in Trails A \& B over time will be assessed using multiple retrospective time points

    Time frame: Baseline to end of study (estimated average of 48 months)

  4. Rate of atrophy of hippocampal volume

    Decrease in hippocampal volume over time will be assessed using volumetric MRI

    Time frame: Baseline to end of study (estimated average of 48 months)

  5. Rate of atrophy in cortical volume

    Decrease in cortical volume over time will be assessed using volumetric MRI

    Time frame: Baseline to end of study (estimated average of 48 months)

  6. Rate of atrophy in ventricular volume

    Decrease in ventricular volume over time will be assessed using volumetric MRI

    Time frame: Baseline to end of study (estimated average of 48 months)

  7. Change in rate of cognitive decline as measured by Functional Assessment Staging Test (FAST)

    Change in FAST over time will be calculated using multiple retrospective time points.

    Time frame: Baseline to end of study (estimated average of 48 months)

07

Study locations

1 site
  • Hoag Memorial Hospital
    Newport Beach, California 92663, United States
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 28, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01745198
Lead sponsor
Pamlab, Inc.
Collaborators
The Shankle Clinic, Hoag Memorial Hospital Presbyterian
Responsible party
Sponsor
First posted
Dec 10, 2012
Start date
Dec 2012
Primary completion
Mar 2014
Completion
Jun 2014
Last update
Apr 28, 2015

Study contacts

William R Shankle, MS, MD, FACP
principal investigator · Shankle Clinic

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2015. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion