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gold nanocrystals

Phase 2

Multiple Sclerosis | Small molecule | Immunology |Clene Inc.|Last Updated: Dec 19, 2025

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
CONTROLLEDBiomarker
Total Trials1
Total Enrollment33
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT0399317131P-MRS Imaging to Assess the Effects of CNM-Au8 on Impaired Neuronal Redox State in Multiple Sclerosis.PHASE2 COMPLETED 33Dec 19, 2019Jul 31, 2025Dec 19, 20251 United States
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Study Endpoints
Primary Endpoints
The change from baseline to week 12 in CNS metabolic changes, based on 31P-MRS Redox Ratio.
At 12 Weeks

Mean change in average NAD+/NADH measured brain Redox Ratio by treatment cohort from Baseline to Week 12.

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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
7.5mg CNM-Au8EXPERIMENTAL7.5mg suspension of clean-surfaced, faceted, gold nanocrystals in 120ml of sodium bicarbonate buffered water
15mg CNM-Au8EXPERIMENTAL15mg suspension of clean-surfaced, faceted, gold nanocrystals in 120ml of sodium bicarbonate buffered water
30mg CNM-Au8EXPERIMENTAL30mg suspension of clean-surfaced, faceted, gold nanocrystals in 120ml of sodium bicarbonate buffered water
60mg CNM-Au8EXPERIMENTAL60mg suspension of clean-surfaced, faceted, gold nanocrystals in 120ml of sodium bicarbonate buffered water
Interventions
NameTypeDescription
gold nanocrystalsDRUGCNM-Au8 is a dark red/purple-colored liquid formulation consisting of a stable suspension of faceted clean surfaced elemental gold nanocrystals in buffered deionized water with a concentration of up to 0.5 mg/mL of gold. The formulation is buffered by sodium bicarbonate present at a concentration of 0.546 mg/mL. There are no other excipients. The drug product is formulated to be taken orally and will be provided in single dose HDPE containers. The study doses vary by the concentration of gold nanocrystals per milliliter in a volume of 60 mL.
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Eligibility Criteria
Age Range18 Years — 55 Years
SexALL
Healthy VolunteersNo
Study Sites1

Patients enrolled in Cohort 1 must meet the following Inclusion Criteria: 1. At least 18 years of age and up to 55 years (inclusive) of age at Screening. 2. Clinical diagnosis of Relapsing Multiple Sclerosis (RMS) (meeting McDonald criteria, 2017). 3. Diagnosis of MS no longer than 15 years prior t...

Countries:United States
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