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Trial · NCT04381468

SEMA4D Blockade Safety and Brain Metabolic Activity in Alzheimer's Disease (AD)

NCT04381468, Phase 1, Phase 2, Completed, Vaccinex Inc.

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. SEMA4D Blockade Safety and Brain Metabolic Activity in Alzheimer's Disease (AD). Trials, record NCT04381468. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT04381468

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
SEMA4D Blockade Safety and Brain Metabolic Activity in Alzheimer's Disease (AD)
NCT number
NCT04381468
Status
Completed
Phases
Phase 1, Phase 2
Enrollment
50 participants, actual
Lead sponsor
Vaccinex Inc.
Conditions
Alzheimer Disease
Interventions
Pepinemab, Placebo
First posted
2020-05-08
Last updated
2024-08-22

Source ClinicalTrials.gov

Registered outcomes22

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryNumber of subjects with treatment emergent adverse events (TEAEs)Up to 40 weeks
TEAEs are defined as Adverse events (AEs) with onset after date-time of first dose, or medical conditions present prior to the start of IP but increased in severity or relationship after date-time of first dose of IP.
SecondaryEffects on brain metabolismUp to 36 weeksAs assessed by \[18F\]fluorodeoxyglucose (FDG)-PET in the resting state following administration of 20 mg/kg or 40 mg/kg pepinemab or placebo.
SecondaryAlzheimer's Disease Assessment Scale- Cognitive subscale (ADAS-cog13)Up to 36 weeksThe Alzheimer's Disease Assessment Scale (ADAS-cog13) will be performed to test the cognition of subjects. The score ranges from 0 to 75,and higher values represent a better outcome.
SecondaryClinical Dementia Rating (CDR)Up to 36 weeks
The CDR assesses 3 domains of cognition (memory, orientation, judgment/problem solving) and 3 domains of function (community affairs, home/hobbies, personal care) using semi-structured interviews of both the study subject and an informant carried out by a trained rater. The CDR is scored using a standard methodology. Each domain is rated on a 5-point scale and lower numbers represent a better outcome.
SecondaryMini Mental State Examination (MMSE)Up to 36 weeksMini-Mental State Examination scores(MMSE) will be performed to test the cognition of subjects. The score ranges from 0 to 30,and higher values represent a better outcome.
SecondaryAlzheimer's Disease Cooperative Study - Activities of Daily LivingUp to 36 weeks
The ADCS-ADL assesses the competence of participants with AD in basic and instrumental activities of daily living (ADLs). It is administered by a clinician as a structured interview with a caregiver. The maximum score is 30. A higher score is better.
SecondaryAlzheimer's Disease Cooperative Study- Clinical Global Impression of Change (ADCS-CGIC)Up to 36 weeks
The ADCS-CGIC focuses on clinicians' observations of change in the patient's cognitive, functional, and behavioral performance since the beginning of a trial. The ADCS-CGIC gives a discrete score that ranges from 1-7 with 7 being the worst outcome.
SecondaryNeuropsychiatric Inventory (NPI)Up to 36 weeks
The NPI is a trial partner interview-based rating scale assessing 12 behavioral disturbances occurring in dementia subjects. Items are scored for both frequency and severity. Total scores range from 0-144 with higher scores indicating greater behavioral disturbances. For each item, the associated trial partner distress is also assessed.
SecondaryImmunogenicity of pepinemab in serumUp to 36 weeksAs assessed by the frequency and titer of anti-drug antibodies.
OtherPeak serum concentration (Cmax)Up to 36 weeksPK parameter

Outcomes0

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

None in this release.

Results by group0

Each measurement the trial posted, group by group, in the words and numbers it posted.

None in this release.

Participant flow0

How many started, completed or left each group, period by period.

None in this release.

Adverse events0

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

None in this release.

Adverse event totals0

The totals the trial posted for each group.

None in this release.

Papers31

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
1566067BACKGROUNDPubMed
14534257BACKGROUNDPubMed
14707103BACKGROUNDPubMed
16247181BACKGROUNDPubMed
16278236BACKGROUNDPubMed
16571604BACKGROUNDPubMed
16741123BACKGROUNDPubMed
17207662BACKGROUNDPubMed
17855350BACKGROUNDPubMed
18246065BACKGROUNDPubMed

1 to 10 of 31

See all 31 papers

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons0

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

None in this release.

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT04381468

GET https://conductscience.org/api/trials/v1/NCT04381468/registered?page=2