Sodium Valproate

Clinical trials of Sodium Valproate are studying whether it helps in several diseases, including epilepsy, cancer, Wolfram syndrome, tuberous sclerosis complex, bipolar depression, and adenomyosis. These studies look at safety, symptom control, recovery, and other outcomes in different patient groups such as children, adults, and critically ill patients.

Table of Contents

Clinical trials overview

The trial data show that Sodium Valproate is being studied in several different diseases, not just one condition.[1][2][3]

These studies include interventional trials, which means the researchers give a treatment and then measure what happens.[1]

The trial phases range from Phase 1 to Phase 4, so the research includes early safety work and later studies that look at treatment benefit in larger groups.[2][3]

Neurology and emergency seizure studies

Several trials focus on seizure-related conditions, including status epilepticus, which is a medical emergency involving ongoing or repeated seizures.[4][5]

In NCT05263674, the FAST TRIAL, researchers compare intravenous Sodium Valproate with other anti-seizure and sedation treatments in people with status epilepticus, and the main outcome is treatment failure after 24 hours.[5]

In NCT06549426, the TELSTAR-2 trial studies comatose cardiac arrest patients with status epilepticus on continuous EEG, and it asks whether stepwise anti-seizure treatment improves functional recovery at six months.[4]

The TELSTAR-2 primary outcome is the score on the extended Glasgow Outcome Scale (eGOS), which measures recovery after brain injury or severe illness.[4]

Cancer studies

One Phase 1 study, NCT06199557, looks at Sodium Valproate in patients with acute myeloid leukemia or high-risk myelodysplastic syndrome who are considered unfit for standard chemotherapy.[2]

This trial tests combinations with hydroxyurea or 6-mercaptopurine and focuses on safety and tolerability, including adverse events, dose-limiting toxicities, lab tests, and physical exams.[2]

It also measures early signs of clinical benefit and changes in Eastern Cooperative Oncology Group (ECOG) performance status, which is a score that shows how well a person can carry out daily activities.[2]

In 2024-516844-25-01, the REVOLUTION study tests whether adding valproic acid and Sodium Valproate to bevacizumab and oxaliplatin/fluoropyrimidine regimens can improve progression-free survival in people with RAS-mutated metastatic colorectal cancer.[6]

Pediatric and rare disease studies

The AUDIOWOLF study, NCT04940572, is a Phase 2 trial in people with Wolfram syndrome due to a monogenic mutation.[1]

Its main goal is to see whether daily Sodium Valproate can preserve hearing over three years, using audiometry and high-frequency hearing tests.[1]

Another Phase 2 study, 2022-502332-39-00, includes children with tuberous sclerosis complex under 4 months of age and measures neuropsychologic outcome at 24 months using the cognitive scale of the Bayley Scales of Infant and Toddler Development III (BSID-III).[7]

In the ependymoma program NCT02265770, Sodium Valproate appears in one treatment stratum for children unable to receive radiation therapy, where the study evaluates progression-free survival when valproate is added to the main chemotherapy strategy.[3]

Psychiatry studies

Two Phase 3 studies include people with mood and other psychiatric disorders.[8][9]

NCT05973786 studies a six-week intensified drug plan for bipolar depression in people who had a first-time treatment failure on first-line treatment, and it measures change in symptom severity using the Montgomery-Åsberg Depression Rating Scale (MADRS).[8]

NCT05603104 was a larger Phase 3 study in schizophrenia, schizoaffective disorder, schizophreniform disorder, major depressive disorder, and bipolar depression, but the trial status is withdrawn.[9]

That withdrawn study also measured symptom change, using the Positive and Negative Syndrome Scale for schizophrenia and MADRS for major depressive disorder and bipolar depression.[9]

Women’s health study

In 2025-523076-23-00, researchers are studying women of reproductive age with adenomyosis in a Phase 2 trial.[10]

The trial compares a plan that includes a single intralesional administration of valproic acid followed by oral dosing with placebo-based comparators, and it looks at pelvic pain and rescue medication use over 29 days.[10]

The primary endpoint uses change in AAPP, which is the trial’s pain measure, and it also records how much ibuprofen is needed as rescue medicine.[10]

Main outcomes used in the trials

The studies use different endpoints because they are asking different clinical questions.[1][2][3]

  • Functional recovery is used in the post-cardiac arrest trial and is measured by eGOS at six months.[4]

  • Safety and tolerability are central in the leukemia trial, where the team tracks adverse events, exams, and lab results.[2]

  • Hearing preservation is the key outcome in Wolfram syndrome, with testing over three years.[1]

  • Progression-free survival is used in the colorectal cancer and ependymoma studies to see how long the disease stays controlled.[6][3]

  • Symptom severity is measured in the bipolar depression study using MADRS, while the withdrawn psychiatric study used both MADRS and PANSS depending on the diagnosis.[8][9]

  • Neuropsychologic outcome is measured in young children with tuberous sclerosis complex using blinded testing at 24 months.[7]

Trial ID Phase Condition studied Status Enrollment
NCT04940572 Phase 2 Wolfram syndrome Completed 23
2024-516844-25-01 Phase 2 RAS-mutated metastatic colorectal cancer Authorised 200
2025-523076-23-00 Phase 2 Adenomyosis Authorised 60
NCT06199557 Phase 1 Acute myeloid leukemia Authorised 48
NCT06549426 Phase 3 Cardiac arrest with comatose status epilepticus Authorised 150
NCT05263674 Phase 3 Status epilepticus Authorised 154
2022-502332-39-00 Phase 2 Tuberous sclerosis complex Authorised 64
NCT02265770 Phase 4 Ependymoma Authorised 1234
NCT05973786 Phase 3 Bipolar depression Authorised 458
NCT05603104 Phase 3 Schizophrenia, major depressive disorder, and bipolar depression Withdrawn 1254

Ongoing Clinical Trials on Sodium Valproate

  • Study of anti-seizure drug combination in comatose patients with status epilepticus after cardiac arrest

    Recruiting

    3 1 1 1
    Investigated diseases:
    Belgium The Netherlands
  • Study on Fast Sedation with Propofol and Midazolam vs. Anti-Seizure Drug Combination for Treating Refractory Status Epilepticus in Intensive Care Patients

    Recruiting

    3 1 1 1
    Denmark
  • Study on Ependymoma Treatment in Children, Adolescents, and Young Adults Using Cisplatin, Cyclophosphamide, Etoposide, and a Drug Combination

    Recruiting

    4 1 1 1
    Austria Belgium Czechia Denmark Finland France +7
  • Study on the Effects of Sirolimus and Drug Combination for Children Under 4 Months with Tuberous Sclerosis Complex

    Recruiting

    2 1 1 1
    Austria Germany
  • Study on the Effect of Citalopram, Sertraline, and Lithium for Patients with Bipolar Depression After First-Line Treatment Failure

    Recruiting

    3 1 1 1
    Austria Germany Greece Italy Spain
  • Study on Hydroxyurea and Valproic Acid or 6-Mercaptopurine with Valproic Acid for Patients with Acute Myeloid Leukemia or High-Risk Myelodysplastic Syndrome

    Recruiting

    1 1 1 1
    Investigated diseases:
    Norway
  • A study to evaluate the effect of valproic acid in women of reproductive age with adenomyosis

    Not yet recruiting

    2 1 1
    Bulgaria
  • Study on Enhanced Treatment for Schizophrenia, Depression, and Bipolar Disorder Using Esketamine, Bupropion, and Quetiapine for Patients with Initial Treatment Failure

    Not yet recruiting

    3 1 1 1
    Investigated diseases:
    Austria Germany Italy Spain
  • Study on Valproic Acid with Bevacizumab and Oxaliplatin/Fluoropyrimidine for Patients with RAS-Mutated Metastatic Colorectal Cancer

    Not recruiting

    2 1 1 1
    Italy
  • Study on the Effects of Sodium Valproate for Hearing Preservation in Patients with Wolfram Syndrome

    Not recruiting

    2 1 1 1
    Investigated diseases:
    France Spain

Glossary

  • Clinical trial: A planned research study in people that tests a treatment, compares treatments, or checks health outcomes.
  • Phase 1: An early trial phase that mainly looks at safety, tolerability, and the right dose range.
  • Phase 2: A trial phase that looks more closely at whether a treatment may work for a condition.
  • Phase 3: A later trial phase that compares treatments in larger groups to confirm benefit and monitor safety.
  • Phase 4: A study phase done after a treatment is already in wider use, often to learn more in real-world settings.
  • Status epilepticus: A medical emergency in which seizures continue for a long time or happen one after another without recovery in between.
  • Comatose: In a deep state of unconsciousness, where a person cannot be awakened normally.
  • Progression-free survival: The length of time during and after treatment when a disease does not get worse.
  • Safety and tolerability: How well people can take a treatment and what side effects or problems are seen during the study.
  • Primary outcome: The main result a trial is designed to measure.
  • Functional recovery: How well a person regains daily life abilities after illness or injury.
  • Neuropsychologic testing: Tests that measure thinking, learning, memory, and other brain-related skills.

References