Cerebyx

Epilepsy, Neurosurgery, prophylaxis of Seizures + 3 more

Treatment

16 Active Studies for Cerebyx

What is Cerebyx

Fosphenytoin

The Generic name of this drug

Treatment Summary

Fosphenytoin is a drug used in hospitals to treat epileptic seizures. It works by slowing down signals in the brain that cause seizures. It does this by blocking certain sodium channels in the neurons, which helps stop the continuous firing of nerve signals that cause seizures.

Cerebyx

is the brand name

image of different drug pills on a surface

Cerebyx Overview & Background

Brand Name

Generic Name

First FDA Approval

How many FDA approvals?

Cerebyx

Fosphenytoin

1996

38

Effectiveness

How Cerebyx Affects Patients

Fosphenytoin is a medication used to control epileptic seizures. After it is given, it is changed into the active ingredient phenytoin by the body. The dose of fosphenytoin should be calculated carefully as 1.5 mg of fosphenytoin is equal to 1.0mg of phenytoin. Severe side effects such as skin rashes, blisters, and blood problems may happen, and a different seizure medication should be used if these occur. When stopping fosphenytoin, it should be done gradually as this may cause seizures.

How Cerebyx works in the body

Fosphenytoin is a form of phenytoin, which is a drug used to treat seizures. It works by stabilizing the electrical activity in the brain, preventing it from becoming too active and causing seizures. This is accomplished by blocking sodium channels on the neurons, which helps stop the spread of seizure activity. By reducing sodium levels, it can also prevent seizures that are triggered by changes in the environment.

When to interrupt dosage

The amount of Cerebyx is contingent upon the diagnosed affliction, including prophylaxis of Seizures, Status Epilepticus (Convulsive) and Neurosurgery. The dosage also fluctuates in relation to the delivery technique (e.g. Liquid or Solution) specified in the table beneath.

Condition

Dosage

Administration

Status Epilepticus

, 50.0 mg/mL, 75.0 mg/mL, 100.0 mg/mL

, Injection, solution, Injection, solution - Intramuscular; Intravenous, Intramuscular; Intravenous, Injection, Injection - Intramuscular; Intravenous, Liquid, Liquid - Intramuscular; Intravenous, Intramuscular; Intravascular, Injection, solution - Intramuscular; Intravascular, Intravenous, Injection - Intravenous, Injection, solution - Intravenous

Epilepsy

, 50.0 mg/mL, 75.0 mg/mL, 100.0 mg/mL

, Injection, solution, Injection, solution - Intramuscular; Intravenous, Intramuscular; Intravenous, Injection, Injection - Intramuscular; Intravenous, Liquid, Liquid - Intramuscular; Intravenous, Intramuscular; Intravascular, Injection, solution - Intramuscular; Intravascular, Intravenous, Injection - Intravenous, Injection, solution - Intravenous

Therapeutic procedure

, 50.0 mg/mL, 75.0 mg/mL, 100.0 mg/mL

, Injection, solution, Injection, solution - Intramuscular; Intravenous, Intramuscular; Intravenous, Injection, Injection - Intramuscular; Intravenous, Liquid, Liquid - Intramuscular; Intravenous, Intramuscular; Intravascular, Injection, solution - Intramuscular; Intravascular, Intravenous, Injection - Intravenous, Injection, solution - Intravenous

Seizures

, 50.0 mg/mL, 75.0 mg/mL, 100.0 mg/mL

, Injection, solution, Injection, solution - Intramuscular; Intravenous, Intramuscular; Intravenous, Injection, Injection - Intramuscular; Intravenous, Liquid, Liquid - Intramuscular; Intravenous, Intramuscular; Intravascular, Injection, solution - Intramuscular; Intravascular, Intravenous, Injection - Intravenous, Injection, solution - Intravenous

Neurosurgery

, 50.0 mg/mL, 75.0 mg/mL, 100.0 mg/mL

, Injection, solution, Injection, solution - Intramuscular; Intravenous, Intramuscular; Intravenous, Injection, Injection - Intramuscular; Intravenous, Liquid, Liquid - Intramuscular; Intravenous, Intramuscular; Intravascular, Injection, solution - Intramuscular; Intravascular, Intravenous, Injection - Intravenous, Injection, solution - Intravenous

prophylaxis of Seizures

, 50.0 mg/mL, 75.0 mg/mL, 100.0 mg/mL

, Injection, solution, Injection, solution - Intramuscular; Intravenous, Intramuscular; Intravenous, Injection, Injection - Intramuscular; Intravenous, Liquid, Liquid - Intramuscular; Intravenous, Intramuscular; Intravascular, Injection, solution - Intramuscular; Intravascular, Intravenous, Injection - Intravenous, Injection, solution - Intravenous

Warnings

Cerebyx has seven contraindications, so it should not be administered when experiencing any of the conditions in the following table.

Cerebyx Contraindications

Condition

Risk Level

Notes

Adams-Stokes Syndrome

Do Not Combine

phenytoin

Do Not Combine

Sinoatrial Block

Do Not Combine

Atrioventricular Block

Do Not Combine

Sinus Bradycardia

Do Not Combine

Pulse Frequency

Do Not Combine

Severe Hypersensitivity Reactions

Do Not Combine

Fosphenytoin may interact with Pulse Frequency

There are 20 known major drug interactions with Cerebyx.

Common Cerebyx Drug Interactions

Drug Name

Risk Level

Description

1,2-Benzodiazepine

Major

The metabolism of 1,2-Benzodiazepine can be increased when combined with Fosphenytoin.

3,5-diiodothyropropionic acid

Major

The metabolism of 3,5-diiodothyropropionic acid can be increased when combined with Fosphenytoin.

5-androstenedione

Major

The metabolism of 5-androstenedione can be increased when combined with Fosphenytoin.

6-O-benzylguanine

Major

The metabolism of 6-O-benzylguanine can be increased when combined with Fosphenytoin.

Abemaciclib

Major

The metabolism of Abemaciclib can be increased when combined with Fosphenytoin.

Cerebyx Toxicity & Overdose Risk

Overdosing on fosphenytoin may cause nausea, vomiting, fatigue, rapid heartbeat, slow heartbeat, heart stoppage, low blood pressure, fainting, low calcium levels, acidosis in the blood, and even death. In animal studies, the median lethal dose was found to be 156mg/kg in mice and 250mg/kg in rats, which is about 0.6 to 2 times the maximum human loading dose. Signs of toxicity in animals included difficulty walking, heavy breathing, drooping eyelids, and lack of activity.

image of a doctor in a lab doing drug, clinical research

Cerebyx Novel Uses: Which Conditions Have a Clinical Trial Featuring Cerebyx?

54 active clinical studies are in progress to ascertain the effectiveness of Cerebyx in treating Epilepsy, Neurosurgery and Generalized Tonic-Clonic Status Epilepticus.

Condition

Clinical Trials

Trial Phases

Neurosurgery

1 Actively Recruiting

Early Phase 1

prophylaxis of Seizures

0 Actively Recruiting

Epilepsy

19 Actively Recruiting

Not Applicable, Phase 2, Phase 3, Early Phase 1, Phase 4, Phase 1

Seizures

0 Actively Recruiting

Status Epilepticus

0 Actively Recruiting

Therapeutic procedure

0 Actively Recruiting

Cerebyx Reviews: What are patients saying about Cerebyx?

1

Patient Review

3/10/2014

Cerebyx for Convulsive Seizures

I had a seizure and was given this treatment at the ER. Almost immediately, I began to twitch on one side of my body, then I threw up. For the past two days, I've been dealing with numbness and severe twitching on the left side. Do not take this; it's dangerous.

1

Patient Review

11/15/2007

Cerebyx for Epileptic Seizure

The emergency room gave me this medication intravenously, but I started itching all over my body almost immediately. The nurse had to stop the IV and give me a dose of Benadryl to calm down the reaction.
image of drug pills surrounding a glass of water symbolizing drug consumption

Patient Q&A Section about cerebyx

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

Is fosphenytoin the same as Dilantin?

"Fosphenytoin is a pro-drug of Phenytoin. The main difference between the two is that fosphenytoin is more water soluble."

Answered by AI

How long does Cerebyx last?

"Fosphenytoin is quickly converted to phenytoin following IV or IM administration, with a half-life of around 15 minutes. Plasma total phenytoin concentrations peak in about 3 hours after IM administration."

Answered by AI

What is Cerebyx used for?

"Cerebyx is a drug used to prevent or control seizures that is only meant to be used for a short time when other forms of phenytoin cannot be given."

Answered by AI

Can Cerebyx be given IV push?

"The highest concentration of CEREBYX that should be used in any solution is 25 mg PE/mL. When CEREBYX is given as an IV infusion, it needs to be diluted and should not be given at a rate higher than 150 mg PE/min."

Answered by AI

Clinical Trials for Cerebyx

Image of University of Texas Southwestern Medical Center in Dallas, United States.

Cobenfy KarXT for Memory Loss

18 - 75
All Sexes
Dallas, TX

The goal of this study is to learn about the effects of Cobenfy KarXT (xanomeline and trospium chloride) on episodic memory processing, including specific effects on areas of the brain involved in memory and changes it may have on brain activity. The investigators will do this by testing epileptic patients who are already undergoing intracranial surgery for seizure monitoring, and measuring the activity from the brain areas being assessed. The main questions it aims to answer are 1) whether Cobenfy KarXT changes memory activity based on its agonist effect on muscarinic receptors and acetylcholine, and 2) what the nature of these brain activity changes are. This work builds on previous experiments evaluating cholinergic antagonists. Participants will complete two treatment arms. One of these will be with the drug, and the other will be with a placebo pill, so that the participants are unaware which session the actual drug has been received. Patients will complete a verbal serial recall and/or associative recognition task each of the two days. An anesthesiologist or patient nurse will administer either the drug or the placebo at a critical point which addresses both of the research questions. Researchers will compare the brain activity between the two treatment arms to determine what brain activity changes, and whether there is an additional behavioral effect on memory.

Phase < 1
Waitlist Available

University of Texas Southwestern Medical Center

Bradley C Lega, MD

Image of Yale Comprehensive Epilepsy Center in New Haven, United States.

BHV-7000 for Epilepsy

18 - 75
All Sexes
New Haven, CT

This is an open label study to assess the biological effect of BHV-7000 on abnormal activity recorded by the RNS System in patients with focal epilepsy implanted with the RNS System. BHV-7000 is a potassium channel activator being evaluated for use in epilepsy. Participants are offered the drug for 4 weeks. Activity during that treatment period is compared to a 90-day retrospective baseline period in which other medications and device settings were stable, and also to a 4-week withdrawal period after treatment is discontinued. The study is open to patients with RNS regardless of whether they report clinical seizures, as long as the device recordings continue to show epileptiform activity.

Phase 1
Recruiting

Yale Comprehensive Epilepsy Center

Imran Quraishi, MD, PhD

Biohaven Pharmaceuticals, Inc.

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Image of Duke University Health Sustem in Durham, United States.

Factors Affecting Oxygen Toxicity

18 - 45
All Sexes
Durham, NC

The goal of this clinical trial is to learn about the mechanisms of oxygen toxicity in scuba divers. The main questions it aims to answer are: * How does the training of respiratory muscles affect oxygen toxicity? * How do environmental factors, such as sleep deprivation, the ingestion of commonly utilized medications, and chronic exposure to carbon dioxide, impact the risk of oxygen toxicity? * How does immersion in water affect the development of oxygen toxicity? Participants will be asked to do the following: * Undergo a basic screening exam composed of health history, vital signs, and some respiratory function tests * Train their respiratory muscles at regular intervals * Exercise on a cycle ergometer both in dry conditions and underwater/under pressure in the context of medication, sleep deprivation, or carbon dioxide exposure Researchers will compare the performance of each subject before and after the possible interventions described above to see if there are changes in exercise performance, respiratory function, cerebral blood flow, and levels of gene expression.

Recruiting
Has No Placebo

Duke University Health Sustem

Derek B Covington, MD

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Image of University of Arizona in Tucson, United States.

Age-Based Seizure Protocol for Pediatric Seizures

6 - 13
All Sexes
Tucson, AZ

The Pediatric Dose Optimization for Seizures in Emergency Medical Services (PediDOSE) study is designed to improve how paramedics treat seizures in children on ambulances. Seizures are one of the most common reasons why people call an ambulance for a child, and paramedics typically administer midazolam to stop the seizure. One-third of children with active seizures on ambulances arrive at emergency departments still seizing. Prior research suggests that seizures on ambulances continue due to under-dosing and delayed delivery of medication. Under-dosing happens when calculation errors occur, and delayed medication delivery occurs due to the time required for dose calculation and placement of an intravenous line to give the medication. Seizures stop quickly when standardized medication doses are given as a muscular injection or a nasal spray. This research has primarily been done in adults, and evidence is needed to determine if this is effective and safe in children. PediDOSE optimizes how paramedics choose the midazolam dose by eliminating calculations and making the dose age-based. This study involves changing the seizure treatment protocols for ambulance services in 20 different cities, in a staggered and randomly-assigned manner. One aim of PediDOSE is to determine if using age to select one of four standardized doses of midazolam and giving it as a muscular injection or nasal spray is more effective than the current calculation-based method, as measured by the number of children arriving at emergency departments still seizing. The investigators believe that a standardized seizure protocol with age-based doses is more effective than current practice. Another aim of PediDOSE is to determine if a standardized seizure protocol with age-based doses is just as safe as current practice, since either ongoing seizures or receiving too much midazolam can interfere with breathing. The investigators believe that a standardized seizure protocol with age-based doses is just as safe as current practice, since the seizures may stop faster and these doses are safely used in children in other healthcare settings. If this study demonstrates that standardized, age-based midazolam dosing is equally safe and more effective in comparison to current practice, the potential impact of this study is a shift in the treatment of pediatric seizures that can be easily implemented in ambulance services across the United States and in other parts of the world.

Phase 3
Recruiting

University of Arizona (+20 Sites)

Manish I Shah, MD, MS

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