Danger: Are Patients Misusing Their Study Meds in Your Clinical Trials?
In every clinical trial, the role of the patient is critical. The decisions that patients make can significantly impact the trial results.
The study design and participation of health professionals may be flawless…but if the patient does not understand the medication instructions and is not motivated to take the study medications as prescribed, the results of the clinical trial will be flawed.
A patient compliance strategy can help ensure more accurate clinical trial results and help prevent these post-marketing dilemmas.
It is not uncommon for clinical investigators to assume that medications taken during clinical trials are taken correctly. This is a very dangerous assumption to make. While it is unreasonable to expect 100% compliance in a clinical trial, the investigators need to identify a patient medication adherence level that will be adequate to allow testing against a control or comparison treatment.

Research is demonstrating that many patients are overestimating their adherence and not providing the study investigators with honest self-reports.
The Needs of Patients During Clinical Trials
Poor adherence is not the patients’ fault. Patients try their best to make good decisions about their medications and when they make a mistake, it is usually because they do not have all the background information they need or are afraid to tell the physician they have made a mistake. To reverse this, there are two issues that must be addressed in the study design:
Make Sure Patients are Compliant with Their Study Meds
If patients do not feel free to discuss their problems in carrying out the trial instructions, they usually “cover up” the problems so they can please the study team. In the Lung Health Study, a 5-year clinical trial sponsored by the National Heart, Lung and Blood Institute of the National Institutes of Health, 14% of the participants had at least one medication dumping episode during the first 4-month follow-up period. A follow-up study extended the result to the first year and reported the following:

Self-reported inhaler use and canister weights usually indicated satisfactory compliance with the study protocol even when dumping had occurred. The authors concluded that deception among noncompliers occurs frequently in clinical trials, is often not revealed by the usual methods of monitoring and cannot be predicted by data readily available in clinical trials.
These findings have wide-ranging implications.

Make Sure Patients Understand the Information Given to Them
The majority of written and verbal information given to patients during clinical trials is not presented in language they can understand.
Patients need the following understandable clinical study materials during Phase III - and even Phase II:
- Patient education materials including brochures, videos
- Informed Consent documents
- “How to Take” Patient Medication Instructions
- Patient Diaries & Personal Progress logs
- Study Packaging
By motivating patients to take the study medication more accurately, Phase II and Phase III study results will reflect a more accurate side effect profile and more accurate dose.
Conclusion
The key to improving patient management of medications during the clinical trial is to identify all the potential patient compliance variables and then develop appropriate educational and behavior modification strategies to address each variable.
For more information about how Consumer Health Information Corporation can help you develop understandable patient education materials for clinical trials click here. |