Trobalt™ Products Risk Survey

NCT ID: NCT01721213

Last Updated: 2015-01-21

Basic Information

• Recruitment Status: COMPLETED
• Total Enrollment: 1 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2012-09-30
• Study Completion Date: 2013-12-31

Brief Summary

As part of a European post-marketing commitment, GSK will conduct a survey of physicians' and patients' understanding of the significant risks associated with Trobalt™ (retigabine), as described in the Patient Information Leaflet (PIL) and the Physician's Guide. The goal of the surveys is to evaluate the effectiveness of the educational plan as specified in the European Risk Management Plan (RMP).

The objectives of this study are to assess patients' and prescribers' understanding and knowledge of the significant risks associated with Trobalt™ use as evaluated by a survey instrument.

This is a cross sectional survey of:

1. 250 patients recruited from across the following countries (United Kingdom, Sweden, Denmark, Switzerland, Spain, Slovakia and Norway) and up to 100 patients from Germany who are currently using or have filled a prescription for Trobalt™ at least once in the last 3 months.

2. 200 neurologists who have prescribed an anti-epileptic drug (AED) at least once in the last 3 months, and who were on the list to which a letter containing the Physician's Guide for Trobalt™ was distributed from across the following countries (United Kingdom, Sweden, Denmark, Switzerland, Spain, Slovakia and Norway). At least 75 of the neurologists will have prescribed Trobalt™. The survey will also aim to include up to 100 neurologists from Germany of which approximately 50 will have prescribed Trobalt™.

Patients eligible for the survey will be asked to take the survey online or via a telephone interview if the latter is preferred. Neurologists will be invited to take the survey online.

The selected countries were the first five countries to launch Trobalt™ (Germany, Denmark, United Kingdom, Switzerland and Sweden) and an additional three countries with launch in 2011, but with relatively high rates of uptake of Trobalt™ (Spain, Slovakia and Norway). The selection of countries includes Switzerland, which is not part of the European Union. However, the key messages regarding the risks with Trobalt™ are in alignment. The rationale for surveying the first five countries to launch is so that any issues identified from these countries regarding the effectiveness of the Physician's Guide and PIL in communicating the risks of Trobalt™ can be addressed as soon as possible, and the key messages can be revised in a timely manner. In addition, these countries are likely to provide the greatest number of neurologists with experience of prescribing Trobalt™, and their patients.

The primary outcome of the survey is the proportion of patients/neurologists providing correct responses to a series of questions concerning the significant risks associated with Trobalt™. The risks evaluated will be those described in the Trobalt™ PIL and in the Physician's Guide.

Conditions

Epilepsy

Study Design

• Study Time Perspective: PROSPECTIVE

Study Groups

Patients using Trobalt™

Use of Trobalt™ current use or at least one prescription filled within the previous three months.

Trobalt™

Intervention Type: DRUG

Trobalt™ is a potassium channel opener used as an adjunctive treatment for partial onset seizures (a form of epilepsy where a seizure begins in a specific area in one side of the brain), with or without secondary generalization in adults aged 18 years and above with epilepsy.

Physicians prescribing AEDs

Physicians (neurologists) who prescribed AEDs at least once in the three months prior to the survey.

Trobalt™

Intervention Type: DRUG

Trobalt™ is a potassium channel opener used as an adjunctive treatment for partial onset seizures (a form of epilepsy where a seizure begins in a specific area in one side of the brain), with or without secondary generalization in adults aged 18 years and above with epilepsy.

Physicians Prescribing Trobalt™

Physicians (neurologists) who have had experience of prescribing Trobalt™ specifically, from among those who have prescribed AEDs at least once in the three months prior to the survey.

Trobalt™

Intervention Type: DRUG

Trobalt™ is a potassium channel opener used as an adjunctive treatment for partial onset seizures (a form of epilepsy where a seizure begins in a specific area in one side of the brain), with or without secondary generalization in adults aged 18 years and above with epilepsy.

Interventions

Trobalt™

Trobalt™ is a potassium channel opener used as an adjunctive treatment for partial onset seizures (a form of epilepsy where a seizure begins in a specific area in one side of the brain), with or without secondary generalization in adults aged 18 years and above with epilepsy.

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

• Use of Trobalt™: current use or at least one prescription filled within the previous three months.
• 18 years of age or older.
• Willing to take the online survey or have the survey administered via a telephone interview.

• Must have prescribed an AED at least once in the last 3 months
• Must be on the list to which the Physician's Guide for Trobalt™ was distributed.

Exclusion Criteria

Patients meeting any of the following criteria will not be eligible to take the survey:

• Unable to understand and complete the survey by internet or phone.
• Currently an employee of GSK or UBC.

Physicians meeting any of the following criteria will not be eligible to take the survey:

• Currently an employee of GSK or UBC.

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

GlaxoSmithKline

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

GSK Clinical Trials

Role: STUDY_DIRECTOR

GlaxoSmithKline

References

Ishihara L, Lewis A, Kolli S, Brickel N. European Survey of Prescriber Understanding of Risks Associated with Retigabine. Drugs Real World Outcomes. 2015;2(4):345-353. doi: 10.1007/s40801-015-0044-3. Epub 2015 Nov 16.

Reference Type: DERIVED

PMID: 26688787 (View on PubMed)

Other Identifiers

WEUKBRE5744

Identifier Type: OTHER

Identifier Source: secondary_id

116771

Identifier Type: -

Identifier Source: org_study_id