Topiramate is an anticonvulsant medication used to treat epileepsy and prevent migraines.
It works by blocking sodium channels and enhancing the activity of gamma-aminobutyric acid (GABA), a neurotransmitter that regulates neuronal excitability.
Topiramate is effective in treating a variety of seizure types and has also been shown to be useful in the prophylaxis of migraine headaches.
Researchers can use PubCompare.ai to identify cutting-edge protocols from literature, preprints, and patents, and leverage AI-driven comparisons to find the most accurate and reproducible methods for studying Topiramate.
Animals Central Nervous System Ethanol Hypersensitivity Injections, Intraperitoneal Intrathecal Injection Lumbar Region Mice, House Needles Nitroglycerin Normal Saline Pharmaceutical Preparations Propylene Glycol Sumatriptan Topiramate
Drinking data were aggregated to the weekly level. The number of days/week of heavy drinking (i.e., ≥4 drinks in a day for women and ≥5 drinks in a day for men) and of abstinence were the primary outcomes. Generalized linear mixed models with a binomial distribution and logit link function were used to examine medication group differences in changes in these outcomes during treatment. The models included fixed effects for medication group, week, and the interaction between medication and week, and a random effect for intercept. “Week” was recoded by subtracting the number of weeks of the study (12 (link)) so that the test of treatment compared groups at the conclusion of the study, week 12, rather than at baseline. The interaction term tested for different rates of change in the outcome during the study. Two sets of analyses of the number of heavy drinking and abstinent days were conducted. First, an intent-to-treat analysis included all 138 patients. In addition to examining changes in drinking over time, we conducted a responder analysis that examined the number of patients in each group with no heavy drinking days during the last four weeks of treatment, consistent with the approach recommended by the Food and Drug Administration (29 (link)). Second, we conducted a pharmacogenetic analysis that was limited to self-identified European-American patients (N=122) due to substantial population differences in rs2832407 allele frequency. Initially, we used the three-level genotype for rs2832407 by adding it to the linear mixed analysis. We then combined the AA and AC groups, comparing them with the CC group as a dichotomous genotype. Timeline follow-back data were available for 92.4% (SD=22.7) of the 84 days of treatment [92.9% (SD=20.9) in topiramate patients and 91.9% (SD=24.5) in placebo patients]. To examine the impact of missing data, multiple imputation using Markov Chain Monte Carlo single chain, based on patient baseline characteristics and weekly drinking, was employed to create 10 imputed data sets. Models were re-run on the imputed data sets using SAS proc mianalyze.
Kranzler H.R., Covault J., Feinn R., Armeli S., Tennen H., Arias A.J., Gelernter J., Pond T., Oncken C, & Kampman K.M. (2014). Topiramate Treatment of Heavy Drinkers: Moderation by a GRIK1 Polymorphism. The American journal of psychiatry, 171(4), 445-452.
The meta-analysis was conducted and reported according to recommendations of the Meta-analysis of Observational Studies in Epidemiology (MOOSE) group [36] (link). A review protocol was construed following the MOOSE guidelines. This was not published but only for internal use of this study. A PubMed and Embase search was conducted for articles on metabolic side effect profiles of antipsychotic medication. The search term used was: ((“weight gain” OR “BMI” OR “7% weight”) AND (chlorpromazine OR haloperidol OR bromperidol OR fluphenazine OR zuclopenthixol OR pentixol OR flupentixol OR levopromazine OR perphenazine OR pimozide OR penfluridol OR sulpiride OR amisulpride OR amoxapine OR asenapine OR aripiprazole OR blonanserine OR clozapine OR iloperidone OR melperone OR olanzapine OR risperidone OR paliperidone OR quetiapine OR sertindole OR lurasidone OR ziprasidone)) NOT (addition OR additive OR adjunctive OR augmentation OR lithium OR valproate OR carbamazepine OR metformin OR topiramate OR ramelteon OR rimonabant OR modafinil OR sibutramine OR genetics OR pharmacokinetics OR vomiting OR nausea OR review OR “cognitive behavioural therapy” OR “cognitive behavioral therapy” OR delirium OR steroids OR ropinirole OR sleep OR “brain volume”) Limits Activated: Humans, Clinical Trial, Randomized Controlled Trial, Clinical Trial, Phase IV, Controlled Clinical Trial, English, German, All Adult: 18+ years, Publication Date from 1999/01/01 to 2011/12/31.
Bak M., Fransen A., Janssen J., van Os J, & Drukker M. (2014). Almost All Antipsychotics Result in Weight Gain: A Meta-Analysis. PLoS ONE, 9(4), e94112.
The study was a parallel-groups, placebo-controlled trial of topiramate in heavy drinkers, all of whom received medical management (20 ), a brief psychosocial intervention, at each of 9 treatment visits. Patients were randomly assigned to treatment group and double-blind conditions were maintained throughout the study. Raters were trained in the reliable use of all assessments. The study was conducted in three phases: a one-week pre-treatment assessment period, a 12-week treatment period, and a 9-day medication taper period.
Kranzler H.R., Covault J., Feinn R., Armeli S., Tennen H., Arias A.J., Gelernter J., Pond T., Oncken C, & Kampman K.M. (2014). Topiramate Treatment of Heavy Drinkers: Moderation by a GRIK1 Polymorphism. The American journal of psychiatry, 171(4), 445-452.
The oral liquid suspension of Example 1 was manufactured for packaging, shipment, storage, and for use with the following.
ContainerOral Dispenser
Plastic bottleMeasuring cup
Glass bottleMeasuring syringe
Measuring dropper
Example 4
The oral liquid suspension of Example 1 was formulated for administration that includes the following.
1. Shake well before using to ensure sufficient redispersion and content uniformity.
2. Measure the prescribed dose of the oral liquid suspension into the dispenser.
3. Orally administer the dose from the dispenser to the subject (with or without food). The medication may be administered by the patient, a caregiver, or a health professional.
US11872309B2. Topiramate oral liquid suspension and use thereof (2024-01-16). OWP Pharmaceuticals, Inc. [US]. Inventors: Paul Sudhakar [US], Scott Boyer [US].
The storage stability of the suspension has been tested over a 6-month storage period under accelerated conditions 40° C. and 75% RH for a period of 6 months and for 24 months at 25° C. and 60% RH. Sufficient bottles of 236 mL bottles were stored at these conditions at each time point of the stability program the composition of suspension was analyzed by HPLC chromatography and the amount of topiramate and its known impurities were determined by a validated HPLC assay. Other tests such as sedimentation rate or redispersibility, during the storage period.
US11872309B2. Topiramate oral liquid suspension and use thereof (2024-01-16). OWP Pharmaceuticals, Inc. [US]. Inventors: Paul Sudhakar [US], Scott Boyer [US].
We retrospectively collected demographic data (age, sex, height, and weight), medical history (psychiatric, gastrointestinal, vascular, hormonal, cancer, respiratory, and immuno-rheumatologic), and the following headache characteristics: onset age, family history of headache, migraine characteristics (unilateral pain, pulsating pain, or aggravation by routine physical activity), pain intensity (0–10; numerical rating scale [NRS]), associated symptoms (photophobia, phonophobia, and nausea/vomiting; none, mild, moderate, or severe), and the presence of aura. The headache specialist explained the criteria for migraine based on the ICHD-3 to all patients who were asked to track headache and migraine days (including probable migraine days). Patients completed a questionnaire on monthly migraine days (MMD), monthly headache days (MHD), monthly acute medication intake days (AMD) at baseline and MMD after 3 months of treatment. A month was defined as 28 days. The headache specialist verified the accuracy and reliability of the completed questionnaire by interviewing and occasionally reviewing each patient’s headache diary. Patients were classified as having episodic migraine or chronic migraine, according to the ICHD-3. Patients were also diagnosed with MOH based on the ICHD-3. Patients completed the Generalized Anxiety Disorder-7 (GAD-7) questionnaire [27 (link), 28 ] and Patient Health Questionnaire-9 (PHQ-9) [29 (link)] upon CGRPmAb administration to determine the extent of anxiety and depression, respectively. We also collected patient migraine-preventive drug data, including failures of preventative drugs (lomerizine, propranolol, valproate, amitriptyline, or topiramate) before CGRPmAb treatment and response frequency to triptan (0, 1, 2, 3 out of three uses) [10 (link)].
Ihara K., Ohtani S., Watanabe N., Takahashi N., Miyazaki N., Ishizuchi K., Hori S., Takemura R., Nakahara J, & Takizawa T. (2023). Predicting response to CGRP-monoclonal antibodies in patients with migraine in Japan: a single-centre retrospective observational study. The Journal of Headache and Pain, 24(1), 23.
Families were recruited through internet and newspaper services, local clinics, and patient support groups in Montréal, Québec. Families were mostly of white, middle-class, intact, and French-Canadian. Inclusion criteria for all families consisted of having at least one child between the ages of 6 and 11 years, and fluency in either English or French. General demographic information presented by risk status can be found in Table 1. Control families were excluded if either parent presented with a current axis-I disorder or reported a history of affective disorders. Inclusion criteria for families having a parent with BD consisted of have one parent with a BD1 or BD2 diagnosis. Psychopathology in parents was assessed with the Structured Clinical Diagnostic Interview for DSM-IV-R (SCID-I; 24). The sample consisted of 25 families with a parent having BD (72% mothers) and 28 families with parents having no mental disorders (90% mothers).
Demographic characteristics presented by risk-status
Variable
OBD
Control Offspring
Offspring age at first timepoint
7.77 years (SD = 1.74)
8.67 years (SD = 1.68)
Offspring sex
Girls
17
18
Boys
17
14
Family ethnicity
Aboriginal (e.g., First Nations, Inuit, Metis, Native American, Native Australian)
1
0
Black (e.g., African–American, Nigerian, Haitian, Jamaican, Somali)
Middle Eastern, North African, Central Asian (e.g., Jordanian, Saudi, Egyptian, Moroccan, Iranian, Afghan, Tajikistani)
2
3
White (Caucasian)
20
16
Parental marital status
Single
5
2
Married
18
18
Separated
2
5
Divorced
0
3
Parental educational attainment
Highschool Diploma
1
0
CÉGEP Diploma
4
4
Some university achievement
1
3
University Degree
19
21
Family annual income
Less than $25,000
4
4
$25,001 to $50,000
8
8
$50,001 to $75,00
5
5
$75,001 to $100,000
1
7
More than $100,000
7
3
Family SES compositea
9.44 (SD = 2.10)
9.48 (SD = 1.67)
aSES Composite = socioeconomic composite score, which combines both parental educational attainment and family annual income
Within families having a parent with BD, most affected parents presented with BD-I (90%), and all reported a history of depression. At the start of the study, most parents with BD were asymptomatic, while two were in a current manic episode. While the latter two individuals were included in the study on the basis of their diagnosis, it was their partners who completed the RUSH program and all accompanying assessments. For the other 23 families, the affected parents attended the program and completed all assessments. All parents with BD were receiving pharmacological treatment at the time of the study, which included various combinations of antidepressant (bupropion, citalopram, escitalopram, sertraline, venlafaxine; n = 6), anticonvulsant (divalproex, lamotrigine, topiramate, valproate, n = 12), antipsychotic (chlorpromazine, lurasidone, olanzapine, quetiapine, ziprasidone; n = 12) and mood stabilizing medication (lithium; n = 9). There were 66 children across the 53 families (34 OBD; 32 control; 48% female), aged between 6 and 11 years (M = 8.20 years, SD = 1.20 years). None of the control offspring met criteria for a psychological disorder, while ten OBD had a current diagnosis at T1, including an anxiety disorder (n = 1), enuresis (n = 2), oppositional defiant disorder (n = 1), and attention deficit/hyperactivity disorder (n = 6; all of whom were being treated with psychostimulants). None of the OBD were receiving any psychosocial treatments throughout the duration of the study. Psychopathology in offspring was assessed with the parent-version of the Kiddie-Schedule of Affective Disorders and Schizophrenia-Present and Lifetime Version [K-SADS-PL; (Kaufman and Schweder 2004 ). Children were excluded on the basis of presenting with pervasive developmental disorder, an intellectual or chronic physical disorder, or any history of an affective or psychotic disorder. Groups of children did not significantly differ on any key demographic variable (e.g., sex, ethnicity, or socioeconomic status) (all p > 0.05). Of the initial 25 families having a parent with BD who underwent the T1 assessment, 20 completed the RUSH program. Of the 20 families who completed the RUSH program, all returned for T2 and T3 assessments, but only 17 families were retained at T4. Families most commonly reported a lack of time as the reason for dropping out at T4. No differences were observed between the original sample and those who dropped out prior to participating in the RUSH program or at T4 with regards to various demographic variables (offspring and parent sex and age, socioeconomic status), parental diagnosis (BD-I v. BD-II), offspring psychopathology at T1, as well as parents’ baseline scores across all four scores of parenting stress (all p > 0.05).
Resendes T., Serravalle L., Iacono V, & Ellenbogen M.A. (2023). Reduced parenting stress following a prevention program decreases internalizing and externalizing symptoms in the offspring of parents with bipolar disorder. International Journal of Bipolar Disorders, 11, 10.
As the etiologically relevant exposure window, the outcome assessment window, and the covariate assessment window differ by study outcome, we created two separate study cohorts. First, cohort 1 was constructed for the analysis of congenital malformations by setting the window of interest between the last menstrual period (LMP) to LMP+90 (hereafter, first trimester), and we excluded the following: (1) pregnancies with exposure to known teratogenic drugs (e.g., antineoplastic agent, warfarin, lithium, systemic retinoids, misoprostol, thalidomide, androgens, antiepileptic medications [valproate, topiramate, carbamazepine, oxcarbazepine, phenobarbital, phenytoin]); (2) infants with chromosomal abnormalities, genetic syndromes, and malformation syndromes with known causes; (3) pregnancies with no NSAID prescription during the first trimester, but with ≥1 NSAID prescription within 3 months before the LMP (LMP-90 to LMP-1); and (4) pregnancies with only 1 NSAID prescription during the first trimester to minimize potential for misclassification of exposure. Second, cohort 2 was constructed for the analysis of nonmalformation outcomes of low birth weight, antepartum hemorrhage, and oligohydramnios, by setting a broader window to evaluate the effects of exposure prior to the outcome assessment period (LMP to 19 week of gestation [hereafter, early pregnancy]), where we excluded (1) pregnancies with no NSAID prescription during early pregnancy, but with ≥1 NSAID prescription within 3 months before the LMP, and (2) pregnancies with only 1 NSAID prescription during early pregnancy.
Choi E.Y., Jeong H.E., Noh Y., Choi A., Yon D.K., Han J.Y., Sung J.H., Choe S.A, & Shin J.Y. (2023). Neonatal and maternal adverse outcomes and exposure to nonsteroidal anti-inflammatory drugs during early pregnancy in South Korea: A nationwide cohort study. PLOS Medicine, 20(2), e1004183.
Topiramate is a pharmaceutical compound developed by Merck Group. It is a white crystalline powder that acts as a sodium channel blocker and gamma-aminobutyric acid (GABA) receptor agonist. Topiramate is primarily used as an active ingredient in various Merck Group's pharmaceutical products.
Sourced in United States, Germany, United Kingdom, Poland, Switzerland, Italy, Spain
Carbamazepine is a chemical compound used as a reference standard in analytical testing procedures. It is a white, crystalline powder that is commonly used to verify the accuracy and precision of analytical equipment and methods.
Ethosuximide is a pharmaceutical compound used as an anticonvulsant medication. It is primarily utilized in the treatment of absence seizures, a type of epileptic seizure. The compound functions by suppressing the spread of seizure activity within the brain.
Lamotrigine is a laboratory instrument used for the detection and quantification of various molecules, compounds, or analytes in a sample. It operates on the principle of liquid chromatography-mass spectrometry (LC-MS) technology.
Sourced in United States, Germany, United Kingdom, France, Poland
Phenobarbital is a pharmaceutical product manufactured by Merck Group. It is a barbiturate compound commonly used as a sedative and anticonvulsant medication. The core function of Phenobarbital is to depress the central nervous system and induce a calming effect.
Levetiracetam is a pharmaceutical active ingredient manufactured by Merck Group. It is a synthetic derivative of the naturally occurring amino acid piracetam. Levetiracetam is used as a broad-spectrum antiepileptic drug.
Gabapentin is a pharmaceutical compound used as a precursor in the synthesis of various pharmaceutical products. It is commonly used in the production of medications for the treatment of neurological conditions. The product is a white, crystalline solid with a molecular formula of C9H17NO2 and a molecular weight of 171.24 g/mol.
Clobazam is a benzodiazepine medication used as an anticonvulsant. It is utilized in the treatment of epilepsy. Clobazam acts on the central nervous system to reduce seizure activity.
Sourced in United States, Germany, Poland, India, United Kingdom
Phenytoin is a laboratory reagent used in the analysis and identification of pharmaceutical and biological samples. It is a crystalline solid compound that is commonly used as a standard for high-performance liquid chromatography (HPLC) and other analytical techniques. Phenytoin is a widely recognized and well-characterized compound that is often used as a reference material in the pharmaceutical and scientific research industries.
Sourced in United States, Germany, China, Italy, Sao Tome and Principe, United Kingdom, France
Valproic acid is a chemical compound used in various laboratory applications. It is a clear, colorless liquid with a characteristic odor. Valproic acid is commonly used as a standard reference material in analytical chemistry and as a reagent in biochemical and pharmaceutical research. Its core function is to serve as a reference or control substance in scientific experiments and analyses.
Topiramate is primarily used to treat epilepsy and prevent migraines. It works by blocking sodium channels and enhancing the activity of gamma-aminobutyric acid (GABA), a neurotransmitter that regulates neuronal excitability. Topiramate is effective in treating various seizure types and has also been shown to be useful in the prophylaxis of migraine headaches.
Yes, Topiramate is available in different formulations, including immediate-release and extended-release tablets. The extended-release version allows for once-daily dosing, which can improve patient compliance. Researchers may need to consider the specific formulation when designing studies to ensure accurate and reproducible results.
PubCompare.ai can help researchers in several ways when studying Topiramate. The platform allows you to screen protocol literature more efficiently, leveraging AI to pinpoint critical insights. PubCompare.ai's AI-driven analysis can highlight key differences in protocol effectiveness, enabling you to choose the best option for reproducibility and accuracy in your Topiramate research. This can help you identify the most effective protocols related to Topiramate for your specific research goals.
One challenge with Topiramate is the potential for side effects, such as drowsiness, dizziness, and weight loss. Researchers need to be aware of these potential issues when designing studies and monitoring participants. Additionally, Topiramate can interact with other medications, so caution is required when using it in combination with other drugs. PubCompare.ai can help researchers stay up-to-date on the latest protocols and best practices for managing these challenges in Topiramate studies.
In addition to treating epilepsy and preventing migraines, Topiramate has also been studied for other applications, such as the treatment of bipolar disorder, binge eating disorder, and alcohol dependence. Researchers can use PubCompare.ai to identify the most effective protocols for these specialized uses of Topiramate, ensuring they are using the most accurate and reproducible methods in their studies.
More about "Topiramate"
Topiramate is an anticonvulsant medication that has been widely used to treat epilepsy and prevent migraines.
This versatile drug works by blocking sodium channels and enhancing the activity of the neurotransmitter gamma-aminobutyric acid (GABA), which helps regulate neuronal excitability.
Topiramate has proven effective in treating a variety of seizure types, including partial-onset, generalized tonic-clonic, and absence seizures.
Additionally, it has been shown to be useful in the prophylaxis of migraine headaches.
Researchers can leverage PubCompare.ai to identify cutting-edge protocols from literature, preprints, and patents, and utilize AI-driven comparisons to find the most accurate and reproducible methods for studying Topiramate.
This powerful tool can help optimize research by providing insights into the latest advancements in Topiramate-related studies.
Other anticonvulsant medications, such as Carbamazepine, Ethosuximide, Lamotrigine, Phenobarbital, Levetiracetam, Gabapentin, Clobazam, Phenytoin, and Valproic acid, may also be studied in conjunction with or as alternatives to Topiramate, depending on the specific needs of the research.
By exploring the synergies and differences between these drugs, researchers can gain a deeper understanding of the mechanisms and applications of Topiramate in the treatment of neurological disorders.