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Pragmatic Free Trial Meta<br><br>Pragmatic Free Trial Meta is a non-commercial, open data platform and infrastructure that supports research on pragmatic trials. It collects and shares cleaned trial data and ratings using PRECIS-2, allowing for multiple and diverse meta-epidemiological studies that compare treatment effects estimates across trials that have different levels of pragmatism as well as other design features.<br><br>Background<br><br>Pragmatic studies are increasingly acknowledged as providing evidence from the real world to support clinical decision-making. However, the usage of the term "pragmatic" is inconsistent and its definition and evaluation requires further clarification. Pragmatic trials are intended to guide the practice of clinical medicine and policy decisions rather than prove a physiological or clinical hypothesis. A pragmatic trial should try to be as close as possible to the real-world clinical practice, including recruiting participants, setting, design, implementation and delivery of interventions, determining and analysis results, as well as primary analysis. This is a significant distinction from explanation trials (as described by Schwartz and Lellouch1) that are designed to provide more thorough proof of a hypothesis.<br><br>The most pragmatic trials should not blind participants or the clinicians. This can lead to an overestimation of the effects of treatment. Practical trials should also aim to attract patients from a variety of health care settings to ensure that their findings are generalizable to the real world.<br><br>Furthermore the focus of pragmatic trials should be on outcomes that are vital to patients, like quality of life or functional recovery. This is especially important in trials that involve surgical procedures that are invasive or have potential for dangerous adverse events. The CRASH trial29, for example was focused on functional outcomes to compare a two-page report with an electronic system for monitoring of patients admitted to hospitals with chronic heart failure. In addition, the catheter trial28 utilized urinary tract infections that are symptomatic of catheters as its primary outcome.<br><br>In addition to these features, pragmatic trials should minimize the procedures for conducting trials and requirements for data collection to reduce costs and time commitments. In the end the aim of pragmatic trials is to make their findings as relevant to real-world clinical practices as possible. This can be achieved by ensuring their primary analysis is based on the intention-to treat method (as described in CONSORT extensions).<br><br>Despite these criteria, many RCTs with features that challenge the concept of pragmatism have been mislabeled as pragmatic and published in journals of all kinds. This can lead to false claims of pragmaticity and the use of the term should be standardized. The creation of the PRECIS-2 tool, which provides an objective standard for assessing practical features, is a good first step.<br><br>Methods<br><br>In a pragmatic research study it is the intention to inform clinical or policy decisions by showing how an intervention could be integrated into routine treatment in real-world settings. This is distinct from explanation trials, which test hypotheses about the causal-effect relationship in idealized situations. In this way, pragmatic trials can have a lower internal validity than explanatory studies and [https://lovewiki.faith/wiki/Haysfabricius4736 프라그마틱 사이트] 정품인증 ([https://www.google.com.co/url?q=http://lovewiki.faith/index.php?title=carlsenmoos1430 mouse click the up coming post]) are more susceptible to biases in their design, analysis, and conduct. Despite their limitations, pragmatic research can be a valuable source of information to make decisions in the context of healthcare.<br><br>The PRECIS-2 tool assesses the level of pragmatism that is present in an RCT by assessing it on 9 domains, ranging from 1 (very explicative) to 5 (very pragmatic). In this study, the recruit-ment, organisation, flexibility: delivery, flexible adherence and follow-up domains received high scores, however, the primary outcome and the procedure for missing data were not at the limit of practicality. This suggests that a trial can be designed with well-thought-out practical features, yet not damaging the quality.<br><br>It is difficult to determine the level of pragmatism within a specific trial since pragmatism doesn't possess a specific characteristic. Some aspects of a research study can be more pragmatic than others. Additionally, logistical or protocol modifications during the course of the trial may alter its pragmatism score. Additionally 36% of 89 pragmatic trials discovered by Koppenaal and colleagues were placebo-controlled, or conducted prior to licensing and most were single-center. They are not close to the norm and are only referred to as pragmatic if their sponsors agree that these trials are not blinded.<br><br>A common feature of pragmatic studies is that researchers try to make their findings more meaningful by analyzing subgroups of the trial sample. This can lead to unbalanced results and lower statistical power, which increases the chance of not or misinterpreting the results of the primary outcome. This was a problem during the meta-analysis of pragmatic trials because secondary outcomes were not adjusted for covariates' differences at baseline.<br><br>Additionally, studies that are pragmatic can pose difficulties in the collection and interpretation safety data. It is because adverse events tend to be self-reported and are susceptible to delays, errors or coding variations. It is important to improve the quality and accuracy of the outcomes in these trials.<br><br>Results<br><br>Although the definition of pragmatism may not require that all clinical trials are 100% pragmatic, there are benefits when incorporating pragmatic components into trials. These include:<br><br>By including routine patients, the trial results can be translated more quickly into clinical practice. However, pragmatic trials be a challenge. For instance, the appropriate type of heterogeneity could help the trial to apply its findings to a variety of settings and patients. However the wrong kind of heterogeneity could reduce assay sensitiveness and consequently reduce the power of a study to detect even minor effects of treatment.<br><br>A number of studies have attempted to classify pragmatic trials using various definitions and scoring systems. Schwartz and Lellouch1 created a framework to distinguish between explanation-based trials that support the clinical or physiological hypothesis and pragmatic trials that help in the choice of appropriate therapies in real-world clinical practice. Their framework comprised nine domains, each scored on a scale ranging from 1-5, with 1 indicating more lucid and 5 indicating more pragmatic. The domains included recruitment, setting, intervention delivery with flexibility, follow-up and primary analysis.<br><br>The original PRECIS tool3 featured similar domains and an assessment scale ranging from 1 to 5. Koppenaal et al10 created an adaptation of this assessment dubbed the Pragmascope which was more user-friendly to use in systematic reviews. They discovered that pragmatic systematic reviews had higher average score in most domains but lower scores in the primary analysis domain.<br><br>The difference in the primary analysis domains could be due to the way in which most pragmatic trials analyse data. Certain explanatory trials however don't. The overall score was lower for systematic reviews that were pragmatic when the domains on the organization, flexibility of delivery and follow-up were merged.<br><br>It is crucial to keep in mind that a study that is pragmatic does not necessarily mean a low-quality study. In fact, there is a growing number of clinical trials that employ the word 'pragmatic,' either in their title or abstract (as defined by MEDLINE but which is not precise nor sensitive). These terms may signal a greater appreciation of pragmatism in titles and abstracts, but it's not clear whether this is reflected in content.<br><br>Conclusions<br><br>As the value of real-world evidence becomes increasingly widespread, pragmatic trials have gained traction in research. They are clinical trials randomized which compare real-world treatment options instead of experimental treatments under development, they include patients that are more similar to the ones who are treated in routine care, they use comparators that are used in routine practice (e.g. existing drugs), and they depend on participants' self-reports of outcomes. This approach can overcome the limitations of observational research, like the biases that come with the reliance on volunteers, and the lack of codes that vary in national registers.<br><br>Other advantages of pragmatic trials are the possibility of using existing data sources, as well as a higher likelihood of detecting meaningful changes than traditional trials. However, pragmatic tests may have some limitations that limit their effectiveness and generalizability. Participation rates in some trials could be lower than expected due to the healthy-volunteering effect, financial incentives or competition from other research studies. Many pragmatic trials are also restricted by the necessity to enroll participants on time. In addition, some pragmatic trials lack controls to ensure that the observed differences are not due to biases in trial conduct.<br><br>The authors of the Pragmatic Free Trial Meta identified RCTs that were published between 2022 and 2022 that self-described as pragmatic. The PRECIS-2 tool was employed to evaluate pragmatism. It includes areas like eligibility criteria as well as recruitment flexibility and adherence to intervention and follow-up. They discovered 14 trials scored highly pragmatic or pragmatic (i.e. scoring 5 or above) in at least one of these domains.<br><br>Trials that have a high pragmatism score tend to have higher eligibility criteria than traditional RCTs that have specific criteria that are unlikely to be found in the clinical setting, and comprise patients from a wide variety of hospitals. These characteristics, according to the authors, may make pragmatic trials more useful and applicable in everyday clinical. However they do not guarantee that a trial is free of bias. The pragmatism principle is not a fixed characteristic; a pragmatic test that does not have all the characteristics of an explanation study can still produce valid and [https://weheardit.stream/story.php?title=why-pragmatic-slots-free-will-be-your-next-big-obsession 프라그마틱 무료] 슬롯 무료 ([https://maps.google.com.sl/url?q=https://writeablog.net/congotenor1/what-is-pragmatic-slots-return-rate-and-why-is-everyone-talking-about-it https://maps.google.com.sl/url?q=https://writeablog.net/congotenor1/what-is-pragmatic-slots-return-rate-and-why-is-everyone-talking-about-it]) useful outcomes.
Pragmatic Free Trial Meta<br><br>Pragmatic Free Trail Meta is an open data platform that allows research into pragmatic trials. It is a platform that collects and shares clean trial data and ratings using PRECIS-2 allowing for multiple and diverse meta-epidemiological studies to evaluate the effect of treatment on trials that have different levels of pragmatism, as well as other design features.<br><br>Background<br><br>Pragmatic trials provide evidence from the real world that can be used to make clinical decisions. However, the use of the term "pragmatic" is not uniform and its definition and evaluation requires clarification. Pragmatic trials must be designed to inform policy and clinical practice decisions, rather than confirm a physiological or clinical hypothesis. A pragmatic study should strive to be as close as is possible to the real-world clinical practice which include the recruitment of participants, setting up, implementation and delivery of interventions, determining and analysis outcomes, and primary analyses. This is a major difference between explanatory trials, as defined by Schwartz and Lellouch1 that are designed to confirm a hypothesis in a more thorough manner.<br><br>The trials that are truly pragmatic should be careful not to blind patients or clinicians, as this may lead to bias in the estimation of the effect of treatment. The trials that are pragmatic should also try to recruit patients from a variety of health care settings, so that their results can be compared to the real world.<br><br>Finally, pragmatic trials must concentrate on outcomes that are important to patients, like the quality of life and functional recovery. This is particularly relevant in trials that involve surgical procedures that are invasive or have potentially serious adverse events. The CRASH trial29 compared a 2-page report with an electronic monitoring system for patients in hospitals with chronic heart failure. The catheter trial28 on the other hand was based on symptomatic catheter-related urinary tract infections as its primary outcome.<br><br>In addition to these aspects, pragmatic trials should minimize the trial procedures and data collection requirements to reduce costs. Additionally pragmatic trials should strive to make their results as applicable to clinical practice as is possible by making sure that their primary analysis is based on the intention-to-treat method (as described in CONSORT extensions for pragmatic trials).<br><br>Despite these criteria, many RCTs with features that defy the notion of pragmatism were incorrectly labeled pragmatic and published in journals of all types. This can result in misleading claims of pragmatism, and the usage of the term must be standardized. The creation of the PRECIS-2 tool, which provides an objective and standard assessment of practical features, is a good first step.<br><br>Methods<br><br>In a pragmatic study the goal is to inform clinical or [https://abelov.com/bitrix/redirect.php?event1=click_to_call&event2=&event3=&goto=https://pragmatickr.com/ 프라그마틱 카지노] policy decisions by showing how an intervention could be integrated into everyday routine care. This differs from explanation trials that test hypotheses regarding the cause-effect relationship in idealised situations. In this way, pragmatic trials could have less internal validity than explanatory studies and be more susceptible to biases in their design as well as analysis and conduct. Despite these limitations, pragmatic trials may contribute valuable information to decision-making in healthcare.<br><br>The PRECIS-2 tool assesses the degree of pragmatism in an RCT by assessing it on 9 domains,  [https://www.meteoromania.ro/anm/wp-content/themes/meteo/altepdf.php?link=https%3A%2F%2Fpragmatickr.com%2F 프라그마틱 무료체험] [https://www.sttechno.ru/bitrix/redirect.php?goto=https://pragmatickr.com/ 프라그마틱 슬롯 무료] ([http://the-playbarn.co.uk/?wptouch_switch=desktop&redirect=//pragmatickr.com%2F these details]) ranging from 1 (very explicative) to 5 (very pragmatic). In this study the areas of recruitment, organisation, flexibility in delivery, [http://mgts-v8.techmas.ru/bitrix/redirect.php?event1=click_to_call&event2=&event3=&goto=https://pragmatickr.com/ 프라그마틱 정품확인방법] 슬롯 팁 - [https://www.td-belarus.ru/redirect/aHR0cHM6Ly9wcmFnbWF0aWNrci5jb20v Our Web Site], flexible adherence, and follow-up received high scores. However, the main outcome and the method for missing data scored below the pragmatic limit. This suggests that a trial can be designed with well-thought-out practical features, but without damaging the quality.<br><br>It is difficult to determine the amount of pragmatism in a particular study because pragmatism is not a have a binary attribute. Certain aspects of a study can be more pragmatic than others. A trial's pragmatism can be affected by changes to the protocol or logistics during the trial. Koppenaal and colleagues found that 36% of the 89 pragmatic studies were placebo-controlled or conducted prior to the licensing. The majority of them were single-center. They are not in line with the norm, and can only be considered pragmatic if the sponsors agree that the trials aren't blinded.<br><br>Another common aspect of pragmatic trials is that the researchers attempt to make their findings more valuable by studying subgroups of the sample. This can lead to unbalanced analyses with lower statistical power. This increases the chance of omitting or ignoring differences in the primary outcomes. In the instance of the pragmatic trials included in this meta-analysis, this was a significant problem since the secondary outcomes weren't adjusted for variations in baseline covariates.<br><br>Additionally the pragmatic trials may be a challenge in the gathering and interpretation of safety data. This is because adverse events are typically reported by participants themselves and are susceptible to reporting delays, inaccuracies or coding deviations. It is important to increase the accuracy and quality of the results in these trials.<br><br>Results<br><br>While the definition of pragmatism may not require that clinical trials be 100% pragmatist, there are benefits when incorporating pragmatic components into trials. These include:<br><br>By incorporating routine patients, the results of trials can be translated more quickly into clinical practice. However, pragmatic trials may also have drawbacks. The right kind of heterogeneity for instance could allow a study to generalise its findings to many different patients or settings. However the wrong type of heterogeneity could decrease the sensitivity of the test, and therefore lessen the power of a trial to detect even minor effects of treatment.<br><br>A variety of studies have attempted to classify pragmatic trials using a variety of definitions and scoring methods. Schwartz and Lellouch1 have developed a framework that can differentiate between explanation studies that confirm a physiological hypothesis or clinical hypothesis, and pragmatic studies that guide the selection of appropriate treatments in the real-world clinical practice. The framework was comprised of nine domains that were scored on a 1-5 scale which indicated that 1 was more explanatory while 5 was more practical. The domains included recruitment and setting, delivery of intervention and follow-up, as well as flexible adherence and primary analysis.<br><br>The initial PRECIS tool3 had similar domains and a scale of 1 to 5. Koppenaal et. al10 devised an adaptation of this assessment, called the Pragmascope, that was easier to use for systematic reviews. They discovered that pragmatic systematic reviews had a higher average score in most domains, with lower scores in the primary analysis domain.<br><br>This difference in the main analysis domain could be explained by the fact that most pragmatic trials analyze their data in the intention to treat manner while some explanation trials do not. The overall score for systematic reviews that were pragmatic was lower when the areas of organisation, flexible delivery and following-up were combined.<br><br>It is important to remember that a pragmatic trial doesn't necessarily mean a poor quality trial, and there is a growing number of clinical trials (as defined by MEDLINE search, but this is neither specific nor sensitive) that use the term "pragmatic" in their title or abstract. These terms could indicate an increased awareness of pragmatism within abstracts and titles, but it's unclear if this is reflected in the content.<br><br>Conclusions<br><br>In recent years, pragmatic trials have been gaining popularity in research as the value of real world evidence is increasingly recognized. They are randomized studies that compare real-world treatment options with new treatments that are being developed. They involve patient populations closer to those treated in regular care. This method can help overcome the limitations of observational research such as the biases that come with the reliance on volunteers, as well as the insufficient availability and codes that vary in national registers.<br><br>Pragmatic trials also have advantages, like the ability to use existing data sources and a higher probability of detecting meaningful differences from traditional trials. However, they may still have limitations which undermine their effectiveness and generalizability. The participation rates in certain trials may be lower than expected due to the healthy-volunteering effect, financial incentives, or competition from other research studies. A lot of pragmatic trials are restricted by the need to recruit participants on time. Certain pragmatic trials lack controls to ensure that any observed variations aren't due to biases during the trial.<br><br>The authors of the Pragmatic Free Trial Meta identified RCTs published up to 2022 that self-described as pragmatic. The PRECIS-2 tool was used to assess the pragmatism of these trials. It includes domains such as eligibility criteria as well as recruitment flexibility as well as adherence to interventions and follow-up. They discovered that 14 of these trials scored highly or pragmatic sensible (i.e. scores of 5 or higher) in one or more of these domains, and that the majority of them were single-center.<br><br>Studies with high pragmatism scores are likely to have more lenient criteria for eligibility than traditional RCTs. They also have populations from many different hospitals. The authors argue that these characteristics can help make pragmatic trials more effective and applicable to everyday practice, but they do not guarantee that a trial using a pragmatic approach is completely free of bias. Moreover, the pragmatism of trials is not a predetermined characteristic A pragmatic trial that does not contain all the characteristics of a explanatory trial can yield valid and useful results.

Latest revision as of 07:54, 6 January 2025

Pragmatic Free Trial Meta

Pragmatic Free Trail Meta is an open data platform that allows research into pragmatic trials. It is a platform that collects and shares clean trial data and ratings using PRECIS-2 allowing for multiple and diverse meta-epidemiological studies to evaluate the effect of treatment on trials that have different levels of pragmatism, as well as other design features.

Background

Pragmatic trials provide evidence from the real world that can be used to make clinical decisions. However, the use of the term "pragmatic" is not uniform and its definition and evaluation requires clarification. Pragmatic trials must be designed to inform policy and clinical practice decisions, rather than confirm a physiological or clinical hypothesis. A pragmatic study should strive to be as close as is possible to the real-world clinical practice which include the recruitment of participants, setting up, implementation and delivery of interventions, determining and analysis outcomes, and primary analyses. This is a major difference between explanatory trials, as defined by Schwartz and Lellouch1 that are designed to confirm a hypothesis in a more thorough manner.

The trials that are truly pragmatic should be careful not to blind patients or clinicians, as this may lead to bias in the estimation of the effect of treatment. The trials that are pragmatic should also try to recruit patients from a variety of health care settings, so that their results can be compared to the real world.

Finally, pragmatic trials must concentrate on outcomes that are important to patients, like the quality of life and functional recovery. This is particularly relevant in trials that involve surgical procedures that are invasive or have potentially serious adverse events. The CRASH trial29 compared a 2-page report with an electronic monitoring system for patients in hospitals with chronic heart failure. The catheter trial28 on the other hand was based on symptomatic catheter-related urinary tract infections as its primary outcome.

In addition to these aspects, pragmatic trials should minimize the trial procedures and data collection requirements to reduce costs. Additionally pragmatic trials should strive to make their results as applicable to clinical practice as is possible by making sure that their primary analysis is based on the intention-to-treat method (as described in CONSORT extensions for pragmatic trials).

Despite these criteria, many RCTs with features that defy the notion of pragmatism were incorrectly labeled pragmatic and published in journals of all types. This can result in misleading claims of pragmatism, and the usage of the term must be standardized. The creation of the PRECIS-2 tool, which provides an objective and standard assessment of practical features, is a good first step.

Methods

In a pragmatic study the goal is to inform clinical or 프라그마틱 카지노 policy decisions by showing how an intervention could be integrated into everyday routine care. This differs from explanation trials that test hypotheses regarding the cause-effect relationship in idealised situations. In this way, pragmatic trials could have less internal validity than explanatory studies and be more susceptible to biases in their design as well as analysis and conduct. Despite these limitations, pragmatic trials may contribute valuable information to decision-making in healthcare.

The PRECIS-2 tool assesses the degree of pragmatism in an RCT by assessing it on 9 domains, 프라그마틱 무료체험 프라그마틱 슬롯 무료 (these details) ranging from 1 (very explicative) to 5 (very pragmatic). In this study the areas of recruitment, organisation, flexibility in delivery, 프라그마틱 정품확인방법 슬롯 팁 - Our Web Site, flexible adherence, and follow-up received high scores. However, the main outcome and the method for missing data scored below the pragmatic limit. This suggests that a trial can be designed with well-thought-out practical features, but without damaging the quality.

It is difficult to determine the amount of pragmatism in a particular study because pragmatism is not a have a binary attribute. Certain aspects of a study can be more pragmatic than others. A trial's pragmatism can be affected by changes to the protocol or logistics during the trial. Koppenaal and colleagues found that 36% of the 89 pragmatic studies were placebo-controlled or conducted prior to the licensing. The majority of them were single-center. They are not in line with the norm, and can only be considered pragmatic if the sponsors agree that the trials aren't blinded.

Another common aspect of pragmatic trials is that the researchers attempt to make their findings more valuable by studying subgroups of the sample. This can lead to unbalanced analyses with lower statistical power. This increases the chance of omitting or ignoring differences in the primary outcomes. In the instance of the pragmatic trials included in this meta-analysis, this was a significant problem since the secondary outcomes weren't adjusted for variations in baseline covariates.

Additionally the pragmatic trials may be a challenge in the gathering and interpretation of safety data. This is because adverse events are typically reported by participants themselves and are susceptible to reporting delays, inaccuracies or coding deviations. It is important to increase the accuracy and quality of the results in these trials.

Results

While the definition of pragmatism may not require that clinical trials be 100% pragmatist, there are benefits when incorporating pragmatic components into trials. These include:

By incorporating routine patients, the results of trials can be translated more quickly into clinical practice. However, pragmatic trials may also have drawbacks. The right kind of heterogeneity for instance could allow a study to generalise its findings to many different patients or settings. However the wrong type of heterogeneity could decrease the sensitivity of the test, and therefore lessen the power of a trial to detect even minor effects of treatment.

A variety of studies have attempted to classify pragmatic trials using a variety of definitions and scoring methods. Schwartz and Lellouch1 have developed a framework that can differentiate between explanation studies that confirm a physiological hypothesis or clinical hypothesis, and pragmatic studies that guide the selection of appropriate treatments in the real-world clinical practice. The framework was comprised of nine domains that were scored on a 1-5 scale which indicated that 1 was more explanatory while 5 was more practical. The domains included recruitment and setting, delivery of intervention and follow-up, as well as flexible adherence and primary analysis.

The initial PRECIS tool3 had similar domains and a scale of 1 to 5. Koppenaal et. al10 devised an adaptation of this assessment, called the Pragmascope, that was easier to use for systematic reviews. They discovered that pragmatic systematic reviews had a higher average score in most domains, with lower scores in the primary analysis domain.

This difference in the main analysis domain could be explained by the fact that most pragmatic trials analyze their data in the intention to treat manner while some explanation trials do not. The overall score for systematic reviews that were pragmatic was lower when the areas of organisation, flexible delivery and following-up were combined.

It is important to remember that a pragmatic trial doesn't necessarily mean a poor quality trial, and there is a growing number of clinical trials (as defined by MEDLINE search, but this is neither specific nor sensitive) that use the term "pragmatic" in their title or abstract. These terms could indicate an increased awareness of pragmatism within abstracts and titles, but it's unclear if this is reflected in the content.

Conclusions

In recent years, pragmatic trials have been gaining popularity in research as the value of real world evidence is increasingly recognized. They are randomized studies that compare real-world treatment options with new treatments that are being developed. They involve patient populations closer to those treated in regular care. This method can help overcome the limitations of observational research such as the biases that come with the reliance on volunteers, as well as the insufficient availability and codes that vary in national registers.

Pragmatic trials also have advantages, like the ability to use existing data sources and a higher probability of detecting meaningful differences from traditional trials. However, they may still have limitations which undermine their effectiveness and generalizability. The participation rates in certain trials may be lower than expected due to the healthy-volunteering effect, financial incentives, or competition from other research studies. A lot of pragmatic trials are restricted by the need to recruit participants on time. Certain pragmatic trials lack controls to ensure that any observed variations aren't due to biases during the trial.

The authors of the Pragmatic Free Trial Meta identified RCTs published up to 2022 that self-described as pragmatic. The PRECIS-2 tool was used to assess the pragmatism of these trials. It includes domains such as eligibility criteria as well as recruitment flexibility as well as adherence to interventions and follow-up. They discovered that 14 of these trials scored highly or pragmatic sensible (i.e. scores of 5 or higher) in one or more of these domains, and that the majority of them were single-center.

Studies with high pragmatism scores are likely to have more lenient criteria for eligibility than traditional RCTs. They also have populations from many different hospitals. The authors argue that these characteristics can help make pragmatic trials more effective and applicable to everyday practice, but they do not guarantee that a trial using a pragmatic approach is completely free of bias. Moreover, the pragmatism of trials is not a predetermined characteristic A pragmatic trial that does not contain all the characteristics of a explanatory trial can yield valid and useful results.