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During clinical trials of pharmaceutical treatments, sponsors and CROs need to detect possible suicidal ideation and behavior related to their drug during baseline assessments, and throughout treatment as well as during the follow up phases.
During clinical trials of pharmaceutical treatments, sponsors and CROs need to detect possible suicidal ideation and behavior (SIB) related to their drug.1 Due to the potential risk for new treatments to induce SIB, reliable and timely assessment is critical. It is equally important to identify patients who may be at risk for SIB prior to administering any treatment or drug to prevent exacerbating a pre-existing condition once treatment is initiated.
To protect research participants, SIB should be assessed at patient screening, during baseline assessments, and throughout the treatment as well as during the follow up phases of the study.
In this article, we discuss why and when SIB should be monitored, compare the different approaches to assessing SIB, and present information supporting patient self-reported assessments as the preferred approach for detecting and monitoring SIB.
SIB monitoring provides scientific data of patients’ suicidal ideations and behaviors that occur during a clinical trial, giving sponsors solid evidence to evaluate risks associated with an investigational treatment. In addition to saving patient lives, this information also supports faster go/no-go decisions during development.2
If reliable SIB data are collected during clinical trials, the data can be used to:
Assessing for SIB on a regular basis enables the sponsor to conduct a development program with confidence that patient safety is maintained and regulatory expectations are met.
Global regulators require SIB assessments for trials with therapies that cross the blood-brain barrier 1as well as making recommendations for clinical investigations of drugs in specific therapeutic indications.1,3-8
According to the FDA 1, prospective SIB assessments should be carried out in the majority of clinical trials that involve the development of a drug for any type of psychiatric indication. The FDA specifically recommends including SIB monitoring when assessing the following indications and conducting these drug trials:
In addition, drugs used to treat non-psychiatric related ailments have been found to alter mood and increase or induce SIB in patients. For example, a safety and efficacy study found that 20 mg per day of the weight-loss drug rimonabant increased the risk of psychiatric adverse events-i.e., depressed mood disorders and anxiety-despite depressed mood being an exclusion criterion in these trials. 9,10
SIB monitoring must happen at every scheduled/unscheduled clinical visit to ensure that patients demonstrating increased risk are recognized and addressed – while also collecting evidence to clarify any association (or lack thereof) between treatment and self-injurious patient behavior.1
The Columbia-Suicide Severity Rating Scale (C-SSRS) is the only risk assessment tool specifically identified by both the FDA and EMA as acceptable for use in clinical trials 1,5-8. When the C-SSRS is used in pharmaceutical research, study site personnel ask a series of simple, plain-language questions to identify whether clinical trial participants are at risk of suicide, assess the severity and immediacy of that risk, and gauge the level of support needed by the patient 11.There are both paper and electronic versions of the clinician reported C-SSRS, though electronic collection is preferred.12,13
The C-SSRS is often referred to as the gold standard for assessing SIB and has been used effectively in clinical trials around the world. Extensive research has validated the relevance and effectiveness of C-SSRS,(for a comprehensive list see http://cssrs.columbia.edu/wp-content/uploads/CSSRS_Supporting-Evidence_Book_2019-03-13-1.pdf).
SIB assessments were traditionally collected by a clinician interviewing the patient and recording responses using a paper version of the C-SSRS. However, clinician reported outcome assessments can be burdensome to clinicians and site staff, who had to sort through paper forms for historical data and copy or transcribe paper forms for monitors and sponsors.
Sponsors now have the option of providing digital tablets for clinicians to use when administering the C-SSRS. Although this solution overcomes some of the burden associated with the paper approach (i.e., branching logic and device error checks eliminate missing / invalid data), the data it collects are still subject to inter-rater bias and are less accurate than when patients complete the assessments themselves.
The electronic patient-reported C-SSRS (commonly referred to as the eC-SSRS) is a unique monitoring solution, which enables patients to complete the SIB assessment themselves and is also identified by the FDA as acceptable for use in clinical trials.
With the patient-rated eC-SSRS, patients complete the SIB assessment on their own, and are automatically presented appropriate follow-up questions (if any) based on their responses. The eC-SSRS provides significant benefits over clinician-administered assessment options (Table 1).
Research has shown that patient-reported assessments are better at detecting suicide signals than clinician-rated assessments.14-16 When patients self-report, evidence suggests that they are more comfortable, honest and open with their answers.17,18 The eC-SSRS also eliminates biases seen between different interviewers, which can occur during clinician-administered assessments.
When patients use the self-reported eC-SSRS, medical monitors (and site staff if required) receive near real-time alerts when SIB is detected, enabling investigators to intervene to ensure patient safety. This also allows sponsors to quickly and accurately identify treatment-emergent SIB, leading to faster, better-informed go / no-go decisions regarding the safety of the drug in development.
Because administration of the patient-reported eC-SSRS is faster and more efficient than the clinician assessment, the burden on site staff is greatly reduced. In one study conducted by a global biotechnology company, patients completed the ‘Lifetime’ version self-rated eC-SSRS in less than 3 minutes and the ‘Since Last Visit’ version in under one minute.19
Including SIB assessments is vital to ensuring the safety of patients taking part in any research study with possible effects on suicide risk. Enabling patients to self-report using the eC-SSRS leads to more accurate and honest answers, while reducing site staff workload and allowing faster identification of patients showing increased risk. The resulting reliable and high-quality data allows sponsors and regulators to document the drug’s true effect on suicidal ideation and behaviors. Assessing SIB throughout a clinical trial program provides trial sponsors and CROs with greater visibility into their patients’ safety and provides compliance with regulatory guidance.
Kenneth G. Faulkner PhD, VP eCOA Science and Rinah Yamamoto, PhD, Senior Scientific Advisor, both of ERT.
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