Last Updated: May 9, 2026

CLINICAL TRIALS PROFILE FOR CAMPRAL


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All Clinical Trials for Campral

Trial ID Title Status Sponsor Phase Start Date Summary
NCT00006206 ↗ COMBINE (Acamprosate/Naltrexone) Completed Lipha Pharmaceuticals Phase 3 1997-08-01 Combine is a multicenter, randomized clinical trial that will evaluate combinations of three interventions for treating alcohol dependence. The goal is to determine whether improvement in treatment outcomes can be achieved by various combinations of drug and behavioral interventions. Two of the interventions will consist of pharmacological treatment with naltrexone (Revia) or acamprosate (Campral). The third intervention is a multicomponent behavioral therapy including such components as motivational enhancement therapy, cognitive behavioral therapy, and referral to self-help groups, including AA. All three interventions will include a component supporting compliance to medications and reduction in drinking.
NCT00006206 ↗ COMBINE (Acamprosate/Naltrexone) Completed National Institute on Alcohol Abuse and Alcoholism (NIAAA) Phase 3 1997-08-01 Combine is a multicenter, randomized clinical trial that will evaluate combinations of three interventions for treating alcohol dependence. The goal is to determine whether improvement in treatment outcomes can be achieved by various combinations of drug and behavioral interventions. Two of the interventions will consist of pharmacological treatment with naltrexone (Revia) or acamprosate (Campral). The third intervention is a multicomponent behavioral therapy including such components as motivational enhancement therapy, cognitive behavioral therapy, and referral to self-help groups, including AA. All three interventions will include a component supporting compliance to medications and reduction in drinking.
NCT00006206 ↗ COMBINE (Acamprosate/Naltrexone) Completed University of North Carolina, Chapel Hill Phase 3 1997-08-01 Combine is a multicenter, randomized clinical trial that will evaluate combinations of three interventions for treating alcohol dependence. The goal is to determine whether improvement in treatment outcomes can be achieved by various combinations of drug and behavioral interventions. Two of the interventions will consist of pharmacological treatment with naltrexone (Revia) or acamprosate (Campral). The third intervention is a multicomponent behavioral therapy including such components as motivational enhancement therapy, cognitive behavioral therapy, and referral to self-help groups, including AA. All three interventions will include a component supporting compliance to medications and reduction in drinking.
NCT00106106 ↗ Acamprosate to Reduce Symptoms of Alcohol Withdrawal Completed National Institute on Alcohol Abuse and Alcoholism (NIAAA) Phase 2 2005-03-01 This study will examine whether a new drug called acamprosate can be helpful for alcohol withdrawal, a result of drinking high amounts of alcohol for long periods of time. Alcohol withdrawal can cause various symptoms, including nausea or vomiting, anxiety or depression, tremor, high blood pressure, and others. During withdrawal, brain chemicals called neurotransmitters change, with some rising to abnormally high levels. These changes may contribute to alcohol craving, drinking relapse and impaired mental performance. This study will see if taking acamprosate for 4 weeks can lower the levels of neurotransmitters, such as glutamate, lessen withdrawal symptoms and decrease alcohol craving and brain damage associated with withdrawal. Healthy normal volunteers and alcohol-dependent patients between 21 and 65 years of age may be eligible for this study. Participants are admitted to the hospital for 28 days. They receive standard inpatient care for alcohol detoxification, including a medical history and physical examination, neurological evaluation, laboratory tests, nursing, nutrition, discharge planning and referrals for treatment of concomitant conditions, if needed. In addition, they are randomly assigned to take either two acamprosate or two placebo pills three times a day for 28 days and undergo the following tests and procedures: - Days 1-28: Drug treatment. Patients take acamprosate or placebo daily. Patients with severe withdrawal symptoms may also receive diazepam (Valium). Throughout their hospitalization, patients fill out questionnaires about their emotional state and personality and are interviewed by staff about their mental health, use of alcohol, cigarettes, and illicit drugs, employment, support systems and family and social relationships, and their legal status. - Days 2 and 3: Blood tests. Blood is tested for levels of the stress hormones cortisol and ACTH, which are released to excess during alcohol withdrawal. For this test, a heparin lock (thin, flexible plastic tube with a rubber stopper on the end) is placed in an arm vein for blood collections each day at 6 AM, 12 noon, 6 PM and 12 midnight. Patients rest in bed for 30 minutes before each collection. - Day 4: Magnetic resonance imaging (MRI) and magnetic resonance spectroscopy (MRS). These procedures are done at the same time. They use a strong magnetic field and radio waves to show structural and chemical changes in the brain. The patient lies on a table in a space enclosed by a metal cylinder (the scanner) for about 20 to 30 minutes during the test. - Day 5: Lumbar puncture (spinal tap). A local anesthetic is given to numb the area for the procedure. Then, a needle is inserted in the space between the bones in the lower back where the cerebrospinal fluid circulates below the spinal cord. A small amount of fluid is collected through the needle. - Days 5 and 6: Dexamethasone-corticotropin releasing factor (CRF) test. This test measures the effect of alcohol withdrawal on ACTH and cortisol. The patient takes a standard dose of the steroid dexamethasone at 11 PM on day 5. At noon the next day, they are given lunch and then stay in bed and rest. A plastic tube is put in an arm vein. A salt water solution is slowly infused through the catheter and a blood sample is withdrawn through it. At 3 p.m., the patient is given 100 micrograms of the hormone CRF. Repeated blood samples are obtained to measure ACTH and cortisol. - Days 23-27: All of the tests done on days 2-6 are repeated, except the MRI. MRS is repeated to measure neurotransmitters.
NCT00106106 ↗ Acamprosate to Reduce Symptoms of Alcohol Withdrawal Completed National Institutes of Health Clinical Center (CC) Phase 2 2005-03-01 This study will examine whether a new drug called acamprosate can be helpful for alcohol withdrawal, a result of drinking high amounts of alcohol for long periods of time. Alcohol withdrawal can cause various symptoms, including nausea or vomiting, anxiety or depression, tremor, high blood pressure, and others. During withdrawal, brain chemicals called neurotransmitters change, with some rising to abnormally high levels. These changes may contribute to alcohol craving, drinking relapse and impaired mental performance. This study will see if taking acamprosate for 4 weeks can lower the levels of neurotransmitters, such as glutamate, lessen withdrawal symptoms and decrease alcohol craving and brain damage associated with withdrawal. Healthy normal volunteers and alcohol-dependent patients between 21 and 65 years of age may be eligible for this study. Participants are admitted to the hospital for 28 days. They receive standard inpatient care for alcohol detoxification, including a medical history and physical examination, neurological evaluation, laboratory tests, nursing, nutrition, discharge planning and referrals for treatment of concomitant conditions, if needed. In addition, they are randomly assigned to take either two acamprosate or two placebo pills three times a day for 28 days and undergo the following tests and procedures: - Days 1-28: Drug treatment. Patients take acamprosate or placebo daily. Patients with severe withdrawal symptoms may also receive diazepam (Valium). Throughout their hospitalization, patients fill out questionnaires about their emotional state and personality and are interviewed by staff about their mental health, use of alcohol, cigarettes, and illicit drugs, employment, support systems and family and social relationships, and their legal status. - Days 2 and 3: Blood tests. Blood is tested for levels of the stress hormones cortisol and ACTH, which are released to excess during alcohol withdrawal. For this test, a heparin lock (thin, flexible plastic tube with a rubber stopper on the end) is placed in an arm vein for blood collections each day at 6 AM, 12 noon, 6 PM and 12 midnight. Patients rest in bed for 30 minutes before each collection. - Day 4: Magnetic resonance imaging (MRI) and magnetic resonance spectroscopy (MRS). These procedures are done at the same time. They use a strong magnetic field and radio waves to show structural and chemical changes in the brain. The patient lies on a table in a space enclosed by a metal cylinder (the scanner) for about 20 to 30 minutes during the test. - Day 5: Lumbar puncture (spinal tap). A local anesthetic is given to numb the area for the procedure. Then, a needle is inserted in the space between the bones in the lower back where the cerebrospinal fluid circulates below the spinal cord. A small amount of fluid is collected through the needle. - Days 5 and 6: Dexamethasone-corticotropin releasing factor (CRF) test. This test measures the effect of alcohol withdrawal on ACTH and cortisol. The patient takes a standard dose of the steroid dexamethasone at 11 PM on day 5. At noon the next day, they are given lunch and then stay in bed and rest. A plastic tube is put in an arm vein. A salt water solution is slowly infused through the catheter and a blood sample is withdrawn through it. At 3 p.m., the patient is given 100 micrograms of the hormone CRF. Repeated blood samples are obtained to measure ACTH and cortisol. - Days 23-27: All of the tests done on days 2-6 are repeated, except the MRI. MRS is repeated to measure neurotransmitters.
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for Campral

Condition Name

Condition Name for Campral
Intervention Trials
Alcohol Dependence 8
Alcoholism 5
Bipolar Disorder 2
Fragile X Syndrome 2
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Condition MeSH

Condition MeSH for Campral
Intervention Trials
Alcoholism 13
Schizophrenia 2
Syndrome 2
Fragile X Syndrome 2
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Clinical Trial Locations for Campral

Trials by Country

Trials by Country for Campral
Location Trials
United States 32
Germany 1
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Trials by US State

Trials by US State for Campral
Location Trials
Ohio 3
Maryland 3
South Carolina 3
Pennsylvania 3
Massachusetts 2
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Clinical Trial Progress for Campral

Clinical Trial Phase

Clinical Trial Phase for Campral
Clinical Trial Phase Trials
Phase 4 6
Phase 3 3
Phase 2/Phase 3 1
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Clinical Trial Status

Clinical Trial Status for Campral
Clinical Trial Phase Trials
Completed 20
Terminated 2
Recruiting 1
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Clinical Trial Sponsors for Campral

Sponsor Name

Sponsor Name for Campral
Sponsor Trials
Forest Laboratories 8
National Institute on Alcohol Abuse and Alcoholism (NIAAA) 6
National Alliance for Research on Schizophrenia and Depression 2
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Sponsor Type

Sponsor Type for Campral
Sponsor Trials
Other 29
Industry 9
NIH 9
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Campral Market Analysis and Financial Projection

Last updated: April 28, 2026

Campral (acamprosate) Clinical Trials Update, Market Analysis and Projections

What is Campral and how is it positioned today?

Campral is the brand name for acamprosate (active ingredient: acamprosate calcium) used in the maintenance of abstinence in patients with alcohol dependence. The product class is established, with the drug used for long-term relapse prevention rather than detoxification or acute withdrawal.

How do the latest clinical trial developments look?

No active, practice-changing late-stage (Phase 3) clinical trial readouts for acamprosate/Campral were identified in the available public record used for this update. The clinical landscape for acamprosate is dominated by earlier efficacy demonstrations and ongoing observational or methodological work rather than new registrational Phase 3 programs.

That pattern matters for planning because Campral is not entering the market with a new label expansion driven by large, contemporary efficacy trials. The current evidence base remains the driver for ongoing use and payer coverage, with any incremental updates typically coming through guideline revisions, real-world studies, or formulation and adherence approaches.

What does the trial landscape imply for near-term differentiation?

Given the lack of new late-stage pivotal programs, near-term differentiation is more likely to come through:

  • Real-world effectiveness and adherence evidence tied to relapse rates and service utilization
  • Safety and tolerability confirmation in broader routine use populations
  • Formulation and supply continuity rather than new mechanism claims (acamprosate’s mechanism remains established)

What is the market size and where does Campral sell most?

Regulatory footprint

Campral has long-running regulatory presence in multiple jurisdictions as an alcohol dependence maintenance therapy. That footprint supports stable demand tied to ongoing alcohol use disorder (AUD) treatment pathways, especially where relapse-prevention programs are standardized.

Commercial demand drivers

Demand is typically sustained by:

  • Chronic relapse prevention need in AUD maintenance treatment
  • Guideline inclusion in relapse prevention strategies in many regions
  • Generic competition that limits pricing power but preserves patient access

Pricing and competitive dynamics

Campral competes primarily against:

  • Other AUD relapse-prevention options (notably naltrexone and disulfiram, plus psychosocial care pathways)
  • Generic acamprosate (where available) that compresses branded economics

The net effect is a market characterized by:

  • Volume stability
  • Lower upside from pricing
  • Sustained use where payer rules and local clinical protocols support acamprosate

How should an investment-grade projection be modeled?

Projection framework

For a mature, off-patent drug with limited registrational activity, projecting revenue needs a structure based on:

  • Patient treated counts
  • Daily dosing and treatment duration assumptions
  • Payer share and generic substitution rates
  • Geographic mix and reimbursement rules

Market projection logic (directional)

Campral revenue trajectory is expected to follow:

  • Modest growth tied to AUD treatment penetration (if treatment capacity expands)
  • Flat-to-declining revenue per patient due to generic pricing competition
  • Volatility from local reimbursement and formulary decisions rather than trial-driven label expansions

In other words, the market is likely to behave like a mature maintenance therapy with growth anchored in epidemiology and health system coverage, not in new clinical breakthroughs.


What are the key clinical and safety considerations driving ongoing use?

Safety signals and monitoring

Across routine use, the main clinical considerations for acamprosate are:

  • Renal function assessment, since dosing and safety are tied to kidney status
  • Adherence, because maintenance benefit depends on sustained dosing

Utilization pattern

Campral is typically used in the context of:

  • Confirmed abstinence period or early abstinence following detox or stabilization
  • Maintenance treatment plans alongside psychosocial support

This treatment design creates a demand profile that tracks access to addiction services and abstinence-oriented programs.


What is the most likely “next value” for Campral?

With the late-stage trial pipeline not showing a clear registrational push, the next identifiable value driver is:

  • Defensive commercialization (retain formularies and prescriber share amid generics)
  • Conversion to adherence-based outcomes in real-world cohorts
  • Supply-chain and formulation continuity that prevents stockouts and treatment interruptions

Key Takeaways

  • Campral (acamprosate) is a mature AUD maintenance therapy, with clinical development currently lacking identifiable late-stage pivotal readouts in the available public record.
  • Market economics are dominated by generic substitution, limiting pricing power but supporting ongoing volume.
  • Near-term revenue growth is best modeled from treated-patient counts and reimbursement coverage, not from new efficacy label expansions.
  • The strongest business focus is formulary retention, payer compliance, and adherence-oriented real-world evidence rather than trial-driven differentiation.

FAQs

1) Is Campral undergoing new Phase 3 development that could change the label?

No practice-changing late-stage (Phase 3) registrational activity was identified in the available public record for this update.

2) What is Campral used for in alcohol dependence?

It is used for the maintenance of abstinence in patients with alcohol dependence.

3) What drives Campral demand in most markets?

Treated-patient volume tied to AUD service access, plus payer coverage of relapse-prevention regimens.

4) How do generics affect Campral revenue?

Generics typically compress branded pricing while maintaining access, shifting growth toward patient counts rather than price.

5) What is the main clinical consideration for dosing?

Renal function is a key dosing/safety determinant for acamprosate-based regimens.


References

[1] FDA. Drug Label Information for Campral (acamprosate). United States Food and Drug Administration.
[2] European Medicines Agency (EMA). Campral (acamprosate calcium) product information. European Medicines Agency.
[3] ClinicalTrials.gov. Acamprosate-related interventional studies. National Library of Medicine.
[4] National Institute on Alcohol Abuse and Alcoholism (NIAAA). Treatment for Alcohol Use Disorder: medication overview. National Institutes of Health.

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