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Nalmefene

Phase 2

Pruritus | Small molecule | Gastrointestinal |Canton Strategic Holdings, Inc.|Last Updated: Sep 9, 2025

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment40

FDA Designations

No designations recorded

Clinical trial landscape

Nalmefene · 2 trials · 3 indications

Phase 2 1Phase 1 1
NCT06733519TH104 for the Treatment of Pruritus in Primary Biliary CholangitisPruritus
NOT YET_RECRUITING40 Analytics
PHASE2NOT YET_RECRUITING
TH104 for the Treatment of Pruritus in Primary Biliary Cholangitis
PruritusUnlock trial analytics

Study Endpoints

Primary Endpoints

The primary objective is to investigate the safety and tolerability of repeat doses of TH104
42 days

Percentage of participants with treatment-related adverse events as coded by MedDRA.

Area Under the Plasma Concentration Versus Time Curve (AUC) of Nalmefene
4 days

Determine the absolute bioavailability of a buccal dose of TH104

Secondary Endpoints

Difference in daily itch score between TH104 and placebo
42 days
Change in participants reported outcome for PBC-40 questionnaire
42 days
Change in participants reported outcome for 5-D itch questionnaire.
42 days
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
TreatmentEXPERIMENTAL -
ControlPLACEBO_COMPARATOR -
Sequence 1EXPERIMENTALA buccal formulation of Nalmefene 16 mg and a 1 mg intravenous dose of nalmefene injection, with a least 7 days washout period between dose
Sequence 2EXPERIMENTALA 1 mg intravenous dose of nalmefene injection, and a buccal formulation of Nalmefene 16 mg with a least 7 days washout period between dose

Interventions

NameTypeDescription
NalmefeneDRUGTh-104 Nalmefene Mucoadhesive Buccal strip
PlaceboDRUGMatching placebo to TH-104
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Eligibility Criteria

Age Range18 Years to 75 Years
SexALL
Healthy VolunteersNo

Inclusion Criteria: 1. Men or women aged 18 to 75 years, inclusive, at the time of signing the informed consent form. 2. Diagnosis of PBC, as demonstrated by the participant presenting with at least 2 of the following criteria at the Screening Visit: 1. history of sustained increased alkaline p...

Countries:United States
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Recent Changes (Last 90 Days)

LOWMay 26, 2026NCT06733519primaryCompletionDate: changed
LOWMay 24, 2026NCT06733519studyFirstPostDate: changed

Frequently asked questions about Nalmefene

What is Nalmefene used for?

Nalmefene is an investigational small molecule being developed by Canton Strategic Holdings, Inc. (ticker: CNTN) for the treatment of pruritus, specifically pruritus associated with primary biliary cholangitis. It is also being studied in healthy volunteers for bioavailability assessment. Nalmefene is currently in clinical development and is not approved for any indication.

How does Nalmefene work?

Nalmefene is an opioid receptor antagonist. It works by blocking the action of opioids at their receptors, which is thought to help reduce the sensation of itching in conditions like pruritus associated with primary biliary cholangitis. The exact mechanism in this context is under investigation in clinical trials.

Who makes Nalmefene?

Nalmefene is being developed by Canton Strategic Holdings, Inc., a company traded under the ticker symbol CNTN. The company is conducting clinical trials to evaluate the drug's safety and efficacy for treating pruritus in primary biliary cholangitis and for assessing its bioavailability in healthy volunteers.

What phase is Nalmefene in?

Nalmefene is in Phase 1 and Phase 2 clinical development. A Phase 1 study (NCT06198686) evaluating the absolute bioavailability of TH104 in healthy volunteers has been completed. A Phase 2 study (NCT06733519) for the treatment of pruritus in primary biliary cholangitis is not yet recruiting. Nalmefene is investigational and not FDA approved.

What clinical trials is Nalmefene in?

Nalmefene has two clinical trials. NCT06198686 is a completed Phase 1 study evaluating the absolute bioavailability of TH104 in 20 healthy volunteers in the United States. NCT06733519 is a not-yet-recruiting Phase 2 study of TH104 for the treatment of pruritus in primary biliary cholangitis, with a planned enrollment of 40 participants.

Is Nalmefene the same as TH104?

Yes, Nalmefene is also known as TH104. Clinical trials for the drug use the name TH104, including NCT06198686 and NCT06733519. Both names refer to the same investigational drug being developed by Canton Strategic Holdings, Inc.