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gold nanocrystals

Phase 2

Multiple Sclerosis | Small molecule | Neurology |Clene Inc.|Trials Updated: Dec 19, 2025

gold nanocrystals development status

Highest phase Phase 2
Registered trials 12 across 2 sponsors since Apr 2016

gold nanocrystals target and mechanism

ModalitySmall molecule

Also known as CNM-Au8

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials2
Total Enrollment46

FDA Designations

No designations recorded

gold nanocrystals clinical trials

gold nanocrystals · 2 trials · 2 indications

Phase 2 2
NCT0381591631P-MRS Imaging to Assess the Effects of CNM-Au8 on Impaired Neuronal Redox State in Parkinson's DiseaseParkinson's Disease
COMPLETED13 Analytics
NCT0399317131P-MRS Imaging to Assess the Effects of CNM-Au8 on Impaired Neuronal Redox State in Multiple Sclerosis.Multiple Sclerosis
COMPLETED33 Analytics
PHASE2COMPLETED
31P-MRS Imaging to Assess the Effects of CNM-Au8 on Impaired Neuronal Redox State in Parkinson's Disease
Parkinson's DiseaseUnlock trial analytics
PHASE2COMPLETED
31P-MRS Imaging to Assess the Effects of CNM-Au8 on Impaired Neuronal Redox State in Multiple Sclerosis.
Multiple SclerosisUnlock trial analytics

Study Endpoints

Primary Endpoints

31P-MRS Redox Ratio
Baseline to 12 Weeks

The change in 31P-MRS NAD+/NADH ratio was measured by a partial volume coil that images the parietal and occipital lobes as a single value with respect to the fraction (%) of the nicotinamide adenine dinucleotide (NAD) signal measured as either the oxidized (NAD+) or reduced form (NADH). The primary endpoint was the mean change from Baseline to Week 12 in the ratio of NAD+ to NADH (NAD+/NADH) in the Intent to Treat population. A paired t-test was used to analyze the mean change from baseline.

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 Range30 Years to 80 Years
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: 1. Able to understand and give written informed consent and follow study procedures. 2. Male or female, aged 30 - 80 years or age (inclusive) at the time of PD diagnosis. 3. PD subjects will be recruited in accordance with the MDS Clinical Diagnostic Criteria for PD: 1. P...

Countries:United States
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Frequently asked questions about gold nanocrystals

What is Gold Nanocrystals used for?

Gold Nanocrystals, also known as CNM-Au8, is an investigational small molecule being developed for Multiple Sclerosis and Parkinson's Disease. It is currently in Phase 2 clinical development and has not been approved by the FDA.

What does Gold Nanocrystals target?

Gold Nanocrystals is designed to improve impaired neuronal redox state, which is the balance of oxidation and reduction in brain cells. It is being studied for its effects on cellular energy metabolism in neurological conditions like Multiple Sclerosis and Parkinson's Disease.

Who makes Gold Nanocrystals?

Gold Nanocrystals is being developed by Clene Inc., a biopharmaceutical company. Clene Inc. is publicly traded under the ticker symbol CLNN.

What phase is Gold Nanocrystals in?

Gold Nanocrystals is in Phase 2 clinical development. It has completed two Phase 2 trials, one in Parkinson's Disease and one in Multiple Sclerosis, and is not yet approved by regulatory authorities.

What clinical trials is Gold Nanocrystals in?

Gold Nanocrystals has completed two Phase 2 trials: NCT03815916 in Parkinson's Disease with 13 participants, and NCT03993171 in Multiple Sclerosis with 33 participants. Both trials were conducted in the United States and were controlled but not randomized or double-blinded.

Is Gold Nanocrystals the same as CNM-Au8?

Yes, Gold Nanocrystals is also known as CNM-Au8. This alternative name is used in clinical trial registrations and scientific literature to refer to the same investigational drug being developed by Clene Inc.