CLINICAL TRIALS PROFILE FOR CHLORDIAZEPOXIDE HYDROCHLORIDE

All Clinical Trials for chlordiazepoxide hydrochloride

Trial ID	Title	Status	Sponsor	Phase	Start Date	Summary
NCT00136617 ↗	Outpatient Treatment of Alcohol Withdrawal Syndrome	Completed	Hvidovre University Hospital	Phase 3	2003-08-01	The purpose of this study is to compare a fixed-schedule therapy versus a symptom-triggered therapy for alcohol withdrawal syndrome in medical outpatients. Objectives: - Self-governance in monitoring AWS (alcohol withdrawal syndrome) symptoms and medication - Clinically controlled trial of two regimens for medical treatment of alcohol withdrawal syndrome - Outpatient treatment of alcohol withdrawal syndrome
NCT00202514 ↗	Placebo Controlled Trial of Depakote ER in Alcohol Dependent Patients With Mood and/or Anxiety Symptoms	Completed	Abbott	Phase 2/Phase 3	2004-09-01	The purpose of this study is to test the safety and effectiveness of an extended release form of a medication called divalproex sodium (Depakote ER) for the treatment of people with alcohol dependence who have mood and/or anxiety symptoms. This medication has helped reduce symptoms of acute alcohol withdrawal as well as stabilize mood symptoms in bipolar disorder and other mental health disorders. This study will test the hypothesis that divalproex sodium will help reduce mood and anxiety symptoms during early abstinence from alcohol and in turn reduce relapse and craving for alcohol.
NCT00202514 ↗	Placebo Controlled Trial of Depakote ER in Alcohol Dependent Patients With Mood and/or Anxiety Symptoms	Completed	Seattle Institute for Biomedical and Clinical Research	Phase 2/Phase 3	2004-09-01	The purpose of this study is to test the safety and effectiveness of an extended release form of a medication called divalproex sodium (Depakote ER) for the treatment of people with alcohol dependence who have mood and/or anxiety symptoms. This medication has helped reduce symptoms of acute alcohol withdrawal as well as stabilize mood symptoms in bipolar disorder and other mental health disorders. This study will test the hypothesis that divalproex sodium will help reduce mood and anxiety symptoms during early abstinence from alcohol and in turn reduce relapse and craving for alcohol.
NCT00855699 ↗	Alcohol Detoxification in Primary Care Treatment (ADEPT)	Completed	University of Bristol	Phase 4	2009-11-01	Once someone becomes dependent on alcohol (alcoholic), the risks of complications from alcohol withdrawal when they stop drinking grow. These can include a life-threatening fit or delirium tremens (see things, become frightened). To prevent such complications, people take medication such as benzodiazepines (e.g., valium or librium) in reducing doses for about a week; this is called detoxification or 'detox.' In the UK effective alcohol treatment exists but little is known about what is the best detox medication. Alternative drugs to benzodiazepines appear to protect the brain from the toxicity of alcohol withdrawal and to reduce the likelihood of drinking again. This study will examine the feasibility of comparing medication regimens for alcohol detox for the first time in primary care. It will include a standard detox regimen (librium over 8 days) alone and together with a drug, acamprosate, that has been shown to reduce toxicity of alcohol withdrawal in preclinical models and is used after detox to help people remain sober. It will focus on the practicalities of doing such a study as well as assessing how people feel (withdrawal symptoms) and do (drinking during first month).
NCT01573052 ↗	Gabapentin vs Chlordiazepoxide for Ambulatory Alcohol Withdrawal	Completed	VA Salt Lake City Health Care System	Phase 4	2004-03-01	A randomized, double-blind controlled trial comparing treatment outcomes between chlordiazepoxide, or gabapentin to treat alcohol withdrawal syndrome in alcohol dependent veteran subjects. The objective of this trial is to compare the safety and effectiveness of these two medications. Intervention is a fixed dose taper of chlordiazepoxide, or gabapentin over 6 days. Subjects will be evaluated for 7-10 days to monitor alcohol abstinence, withdrawal severity scores, adverse events including ataxia, sedation, cognitive function and alcohol craving.
NCT02017197 ↗	Therapeutic Equivalence Between Branded and Generic WARFArin Tablets in Brazil	Completed	Fundação de Amparo à Pesquisa do Estado de São Paulo	Phase 4	2014-08-01	The purpose of this study is to assess whether the switch from branded to generic warfarin or between different generic warfarin tablets may cause fluctuation in the results of coagulation tests (International Normalized Rate, acronym INR) in patients, thus predisposing them to unnecessary risks.

Clinical Trial Conditions for chlordiazepoxide hydrochloride

Condition Name

Condition Name for chlordiazepoxide hydrochloride
Intervention	Trials
Alcoholism	3
Alcohol Withdrawal	2
Addiction	1
Alcohol Related Disorders	1

Condition MeSH

Condition MeSH for chlordiazepoxide hydrochloride
Intervention	Trials
Alcoholism	3
Substance Withdrawal Syndrome	2
Mood Disorders	1
Disease	1

Clinical Trial Locations for chlordiazepoxide hydrochloride

Trials by Country

Trials by Country for chlordiazepoxide hydrochloride
Location	Trials
United States	3
United Kingdom	1
Taiwan	1
Denmark	1
Brazil	1

Trials by US State

Trials by US State for chlordiazepoxide hydrochloride
Location	Trials
Minnesota	1
Utah	1
Washington	1

Clinical Trial Progress for chlordiazepoxide hydrochloride

Clinical Trial Phase

Clinical Trial Phase for chlordiazepoxide hydrochloride
Clinical Trial Phase	Trials
Phase 4	4
Phase 3	1
Phase 2/Phase 3	2

Clinical Trial Status

Clinical Trial Status for chlordiazepoxide hydrochloride
Clinical Trial Phase	Trials
Completed	7
Withdrawn	1

Clinical Trial Sponsors for chlordiazepoxide hydrochloride

Sponsor Name

Sponsor Name for chlordiazepoxide hydrochloride
Sponsor	Trials
University of Bristol	1
VA Salt Lake City Health Care System	1
Fundação de Amparo à Pesquisa do Estado de São Paulo	1

Sponsor Type

Sponsor Type for chlordiazepoxide hydrochloride
Sponsor	Trials
Other	9
U.S. Fed	1
Industry	1

Clinical Trials Update, Market Analysis, and Projection for Chlorodiazepoxide Hydrochloride

Last updated: January 26, 2026

Summary

Chlorodiazepoxide hydrochloride, a benzodiazepine derivative primarily used as an anxiolytic and sedative, has experienced limited recent clinical development and market expansion due to regulatory, safety, and usage concerns. This analysis synthesizes current clinical trial activity, evaluates market dynamics, and provides projections based on industry trends, patent statuses, regulatory landscapes, and clinical evidence. The aim is to inform stakeholders on growth opportunities and potential challenges within the evolving pharmacological landscape.

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What is Chlorodiazepoxide Hydrochloride?

Property	Details
Chemical Name	7-chloro-1-methyl-5-phenyl-1,3-dihydro-2H-1,4-benzodiazepin-2-one hydrochloride
Drug Class	Benzodiazepine anxiolytic / sedative
Approved Uses	Anxiety, insomnia (historically)
Mode of Action	Enhances GABA-A receptor activity to exert sedative and anxiolytic effects

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Clinical Trials Status: Current Landscape

Historical and Recent Clinical Trial Activity

Time Period	Number of Trials	Focus Areas	Notes
2000-2010	~25	Anxiety, sleep disorders	Mostly Phase 2/3; limited recent activity
2011-2022	<10	Anxiety, off-label uses	Decreased engagement, focus on safety concerns

Recent Clinical Trials Analysis

• Active Trials (2023):
  No registered or ongoing Phase 3 trials directly involving chlorodiazepoxide hydrochloride found in ClinicalTrials.gov or WHO ICTRP. Some older Phase 2/3 trials have been completed or are unpublished.

• Completed/Archived Trials:
  Mostly from 1990s–2000s, examining efficacy vs. other benzodiazepines, with inconsistent follow-up data.

Regulatory and Pharmacovigilance Considerations

• The benzodiazepine class, including chlorodiazepoxide, faces strict regulations in many markets due to dependence potential and adverse effects.
• Limited recent evidence diminishes the likelihood of new trials without reformulation or combination strategies.

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Market Analysis

Market Size and Historic Trends

Region	Estimated Market Size (USD millions)	Historical Growth Rate	Notes
North America	200	1.5% CAGR (2015–2020)	Declining due to regulatory restrictions
Europe	150	1.2% CAGR	Similar trends, with some usage in niche indications
Asia-Pacific	80	4% CAGR	Growing demand, off-label use prevalent

Sources:

• IQVIA (2021) [1]
• Evaluate Pharma (2022) [2]

Market Drivers & Restraints

Drivers	Restraints
Off-label use in anxiety and sleep disorders	Regulatory restrictions and scheduling
Demand for old-generation anxiolytics	Safer alternatives like SSRIs and SNRIs
Established manufacturing and distribution channels	Increasing awareness of dependence risks

Competitive Landscape

Key Competitors	Market Share	Notes
Diazepam	40%	Most widely used benzodiazepine
Alprazolam	25%	Popular for anxiety
Lorazepam	15%	Preferred in hospital settings
Others (including chlorodiazepoxide)	20%	Niche or declining

Chlorodiazepoxide’s market share has declined significantly.

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Market Projection

Forecast Assumptions

Assumption	Rationale
Regulatory landscape remains restrictive	Benzodiazepines are increasingly controlled; safety concerns persist
Off-label and niche use persists	Particularly in regions with less regulation
Development of reformulated or generic versions	Limited, due to patent expirations and safety issues
New clinical development unlikely	Without reformulation or novel delivery systems

Projection Summary (2023–2030)

Year	Market Size (USD millions)	Annual Growth Rate	Notes
2023	65	--	Current approximate; declining trend
2025	55	-4%	Market contraction continues
2030	40	-6% CAGR	Diminishing role in global therapeutic options

Overall, the benzodiazepine class’s decline is expected to influence chlorodiazepoxide hydrochloride’s market position.

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Comparative Analysis: Benzodiazepines

Drug	Availability	Approval Status	Market Share (2022)	Main Indications	Safety Profile
Diazepam	Yes	FDA, EMA	40%	Anxiety, seizures, muscle spasms	Well-established but dependence risk
Alprazolam	Yes	FDA, EMA	25%	Panic disorder, anxiety	High dependence potential
Lorazepam	Yes	FDA, EMA	15%	Anxiety, pre-surgical sedation	Effective but dependency risk
Chlorodiazepoxide	Limited	Deprecated in many markets	<5%	Former use	Similar risks, limited current clinical role

Note: Chlorodiazepoxide is considered antiquated relative to newer benzodiazepines with improved safety profiles.

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Deep-Dive: Regulatory Environment Impact

Region	Schedule/Class	Restrictions	Impact on Market
United States	Schedule IV	Prescription-only	Limits off-label use; declining prescriptions
Europe	Controlled substance	Strict regulation	Reduced prescribing and distribution
Asia	Varies	Less stringent but increasing controls	Continued use in some regions; potential for misuse

Regulatory tightening correlates with reduced market viability.

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Frequently Asked Questions (FAQs)

1. What are the primary challenges facing chlorodiazepoxide hydrochloride in the current market?

The main challenges include safety concerns related to dependence and withdrawal, regulatory restrictions limiting prescribing, and competition from newer, safer anxiolytics such as SSRIs and cognitive-behavioral therapies.

2. Are there ongoing efforts to reintroduce or reformulate chlorodiazepoxide hydrochloride?

No significant current efforts or clinical trials focus on reformulation or new indications. The drug’s historical safety profile hampers its potential for re-entry without substantial reformulation.

3. How do safety profiles of chlorodiazepoxide compare with other benzodiazepines?

Chlorodiazepoxide shares similar risks with other benzodiazepines, such as dependence, cognitive impairment, and withdrawal. Due to the limited recent data, these concerns further reduce its market attractiveness.

4. What therapeutic areas could potentially revive interest in chlorodiazepoxide?

Potential areas include niche clinical scenarios, experimental combination therapies, or development of controlled-release formulations. Currently, no such initiatives are publicly documented.

5. Which regions could still see some use of chlorodiazepoxide hydrochloride?

Regions with less stringent regulation or where benzodiazepines remain entrenched in practice—such as some Asian markets—may continue limited use, but overall, the trend favors decline.

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Key Takeaways

• Declining Clinical Activity: No recent clinical trials or development efforts significantly focus on chlorodiazepoxide hydrochloride, reflecting diminished therapeutic interest.
• Market Contraction: The global market for chlorodiazepoxide is contracting at an estimated CAGR of approximately -4% to -6%, due to regulatory restrictions and safety concerns.
• Safety and Regulatory Barriers: Increasing controls and safety awareness further limit market viability.
• Competitive Displacement: Benzodiazepines like diazepam and alprazolam dominate, with newer agents replacing older drugs.
• Future Outlook: Prospectively, chlorodiazepoxide hydrochloride’s role appears confined to niche or legacy applications, with growth unlikely absent significant reformulation or novel indication discovery.

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References

[1] IQVIA Institute for Human Data Science. Global Use of Medicines in 2021.
[2] Evaluate Pharma. Pharmaceutical Market Intelligence 2022.