Study type

Study topic

Human medicinal product

Study type

Non-interventional study

Scope of the study

Assessment of risk minimisation measure implementation or effectiveness

Data collection methods

Primary data collection
Non-interventional study

Non-interventional study design

Cross-sectional
Study drug and medical condition

Name of medicine

ELIQUIS

Study drug International non-proprietary name (INN) or common name

APIXABAN

Anatomical Therapeutic Chemical (ATC) code

(B01AF02) apixaban
apixaban
Population studied

Short description of the study population

HCPs will be considered for participation in the study if they prescribe/dispense Eliquis® for any of the three currently approved indications, including the following subgroups:

• Cardiologists (including allied specialties, e.g., angiologists, electrophysiologists)
• General practitioners/internal medicine physicians
• Other HCPs (e.g., pharmacists).

Estimated number of subjects

20
Study design details

Study design

This will be a cross-sectional non-interventional PASS to evaluate the effectiveness of RM tools for Eliquis® in the KSA.
The study objectives will be accomplished by means of a cross-sectional survey among HCPs who prescribe and/or dispense Eliquis® in the KSA.

Main study objective

The primary objective of this study will be to:
1. Assess HCPs’ knowledge of RM tools (i.e., Prescriber Guide and Patient Alert Card) with regards to the bleeding risk associated with Eliquis® treatment.

The secondary objectives of this study are to:
1. Assess utilization of Eliquis® RM tools (i.e., Prescriber Guide and Patient Alert Card) by HCPs.
2. Assess HCPs’ self- declared behavior with regards to the specific guidance related to the prevention and management of bleeding associated with Eliquis® treatment.

Setting

At the time of protocol writing, approximately 85 HCPs were prescribing/dispensing Eliquis® in KSA and around 73 of these have received the RM tools in-person and 12 by email.
Given this relatively small pool of HCPs, an empirical sample size of 20 HCPs is proposed. Data will be collected during the data collection period of approximately 4-6 months.

The HCPs must meet all of the following criteria to be eligible for inclusion in the survey:
1. Involved in the treatment of at least one patient with Eliquis® within the last 12 months
2. Willing to participate in the self-administered HCP survey by providing voluntary consent to participate in this survey conducted in the KSA

The HCPs meeting any of the following criteria will not be included in the study:
1. Employed in full time research or hospital administration (i.e., non-practicing physicians)
2. Employment by Pfizer, Inc or any research organization/vendor contracted by Pfizer to administer the survey.

HCPs recruitment and survey will be conducted by the following process:
• HCPs will be invited to participate in the survey by email and/or phone. An email invitation will include a web link directing to a webtool named ‘Decipher’, where the survey questionnaire will be available.
• If the HCPs agree to participate in the survey, they can access the survey and the instructions for the web questionnaire by clicking on the web link included in the email.
• If the web questionnaire is not completed in the first attempt, HCPs will receive a reminder email and/or phone (first reminder) 1 week after the initial invitation.
• If the web questionnaire remains incomplete, a second reminder will be sent about 2 weeks after the initial invitation.
• If the web questionnaire still remains incomplete, a third (and final) reminder will be sent 3 weeks after the initial invitation.

An HCP will be considered unreachable if he/she has been contacted up to 3 times without an answer.

Outcomes

The primary endpoint is:

1. The proportion of targeted HCPs who responds to the knowledge-related questions in agreement with the RM tools for Eliquis®.

The secondary endpoints are:

1. The proportion of targeted HCPs using Eliquis® for any approved indication who have utilized the RM tools.
2. The proportion of targeted HCPs whose responses to the practice-related questions, self-declared behavior, are in agreement with the RM tools.

Data analysis plan

The statistical analysis will be conducted using the SAS® software V9.4 (SAS Institute North Carolina, USA), or R version 3.6 or higher on Windows™.

All the analyses will be descriptive. Continuous variables will be described by their number (of valid cases, of missing values), mean, standard deviation, and median, Q1, Q3, minimum and maximum. Categorical variables will be described as the total number and relative percentage per category.

In case of multiple-choice questions, the frequency of each option provided by the HCPs will be reported as the total number and relative percentage per category. Different combinations of the answers provided (if any) will not be considered.

Wilson CIs of 95% will be evaluated on the overall result.

The participation rate will be analyzed overall for HCPs.

The proportion of correct and desirable answers to the selected questions asked in the questionnaire will be expressed for HCPs who provide answers to those questions (the missing data will not be counted as a denominator in proportions). Success indicators by objectives will be presented for HCPs.

1. Primary analysis: The general statistical considerations described above will be applied to quantitative and qualitative variables. The number of missing data will be indicated. Missing values are expected to be few and distributed at random. Since there is no applicable method unanimously accepted, there will be no replacement or imputation of missing data.9 Confidence interval of 95% will be evaluated for endpoint variables.

Detailed methodology for summary and statistical analyses of data collected in this study will be documented in a statistical analysis plan (SAP).

2. Analysis of participation rate: the following different cases will be distinguished
• HCPs who do not participate (R)
• HCPs with partially answered questionnaires (P)
• Failed screening (F)
• HCPs with completed questionnaire (C)
• Contacted HCPs
• HCPs who agree to participate