A patient may appear to qualify for a clinical trial, but one overlooked requirement can change the screening outcome. Research teams need a reliable way to review every eligibility requirement before assessing a participant’s potential eligibility. The process begins with the study protocol, which defines who can participate, what may prevent participation, and what screening needs to establish.
The challenge is turning these requirements into clear, consistent screening questions. Reviewing lengthy protocols, preparing questionnaires, conducting calls, and assessing responses can add significant work for research teams. Calendax connects these stages in one workflow, starting with its Protocol Questionnaire and continuing with AI Screening Agent or Live Calling. AI Call Intelligence and Call Recording then support call review and documentation.
What Are Inclusion and Exclusion Criteria?
Inclusion and exclusion criteria define the requirements for participation in a clinical trial. Researchers establish these criteria in the study protocol to identify the intended study population and assess potential eligibility.
Although both categories guide screening, they serve different purposes. Inclusion criteria describe the characteristics participants must have, whereas exclusion criteria identify factors that prevent participation. Research teams must consider both categories when assessing a potential participant.
What Are Inclusion Criteria?
Inclusion criteria are the requirements a person must meet to qualify for consideration in a clinical trial. These requirements help researchers identify participants who match the study’s intended population.
Depending on the study, inclusion criteria may address:
1. Age: Participants must fall within a specified age range.
2. Diagnosis: Participants must have a particular medical condition.
3. Disease characteristics: Participants must meet defined requirements related to their condition.
4. Treatment history: Participants may need to have received a specific treatment or completed a required treatment period.
5. Clinical findings: Participants may need laboratory results or other measurements within specified ranges.
For example, a migraine clinical trial may require participants aged 18 to 65 with a documented migraine diagnosis. The protocol could also require a specific number of migraine days each month before screening can continue.
Meeting these requirements does not automatically establish final eligibility. The research team must also assess the exclusion criteria and follow the study’s screening procedures.
What Are Exclusion Criteria?
Exclusion criteria are the requirements or characteristics that prevent a person from participating in a clinical trial. These criteria help researchers identify participants who may not meet the study’s eligibility requirements.
Depending on the study, exclusion criteria may address:
1. Medical conditions: Participants may be excluded if they have certain health conditions specified in the protocol.
2. Medications: Participants may be excluded if they currently use or recently used certain medications.
3. Recent treatments: Participants may be excluded if they received a specified treatment within a defined period.
4. Laboratory findings: Participants may be excluded if their test results fall outside specified ranges.
5. Previous clinical trial participation: Participants may be excluded if they recently participated in another clinical study.
For example, a migraine clinical trial may exclude participants who recently received a specified preventive treatment. The protocol could also exclude people with a medical condition that may affect the study’s assessment.
Meeting the inclusion criteria does not mean a patient automatically qualifies for the study. The research team must also check the exclusion criteria before assessing potential eligibility.
How to Screen Patients for Clinical Trial Eligibility
Effective screening begins with a clear understanding of the protocol. Research teams then need to translate its requirements into questions, collect patient responses, and assess the information against the defined criteria.
Calendax supports this process with connected tools that address different stages of the screening workflow.
1. Review the Protocol and Identify Eligibility Criteria
The study protocol provides the foundation for patient screening. Before contacting potential participants, the research team needs to identify the relevant inclusion and exclusion criteria.
This review can become time-consuming when protocols contain lengthy eligibility sections or numerous conditions. Researchers must identify each requirement and understand what information screening needs to establish.
Missing a criterion during questionnaire preparation can leave an important eligibility question unanswered. Starting with the protocol helps connect the screening process to the study’s defined requirements.
2. Generate a Screening Questionnaire With Calendax
Once the eligibility criteria have been identified, the next step is converting them into clear screening questions. Each question should gather information needed to assess a particular requirement.
For example, if the protocol requires participants to have experienced at least four migraine days per month, the screening question could ask, “How many migraine days do you typically experience each month?” If the protocol excludes patients taking a specific medication, the questionnaire could ask, “Are you currently taking [medication name]?”
Calendax’s Protocol Questionnaire is designed to simplify this preparation stage. It uses an uploaded study protocol to generate a screening questionnaire based on its inclusion and exclusion criteria. Research teams can review and approve the questions before using them.
This connects protocol review with practical questionnaire preparation. Instead of developing every question manually, the team can begin with a protocol-based draft and check it against the study requirements.
The resulting questionnaire provides the foundation for the next stage: screening potential participants.
3. Conduct Screening With the AI Screening Agent or Live Calling
After preparing the questionnaire, research teams can conduct screening calls. Calendax offers two options for this stage: the AI Screening Agent and Live Calling.
Both approaches use the prepared screening questions, but they support different approaches to patient screening.
AI Screening Agent
The AI Screening Agent supports automated initial screening using configured questions and eligibility criteria. It can contact potential participants, ask screening questions, and assess their responses against the defined requirements.
This approach can reduce the need for staff to conduct every initial screening conversation manually. However, automated screening does not replace the research team’s responsibilities. Responses may require clarification, additional documentation, or further assessment under the study’s procedures.
Live Calling
Live Calling supports screening conversations conducted by research staff. Coordinators can use the prepared questions during calls rather than relying on memory or separate notes.
This approach maintains direct interaction between the coordinator and potential participant. It also provides a structured framework for collecting information relevant to the study’s eligibility requirements.
Both options build on the same protocol-based questionnaire. Research teams can use the approach that fits their screening workflow.
4. Analyze Screening Conversations With AI Call Intelligence
Collecting patient responses is only one part of screening. Research teams may also need to review conversations, identify relevant details, and determine whether follow-up is necessary.
Manually reviewing calls can add to the workload, especially when recruitment generates numerous screening conversations. Important details may also require additional attention before the team can assess a potential participant’s status.
Calendax’s AI Call Intelligence analyzes call information to support this review process. It can help organize relevant details from screening conversations and provide information that research teams can review.
This stage follows the screening interaction rather than replacing it. The questionnaire establishes what needs to be asked, and the call collects the responses. AI Call Intelligence then helps organize the information gathered during the call, making it easier for the research team to review the screening results.
The research team can then review those results and determine whether any responses require clarification or further assessment.
5. Review Conversations With Call Recording
Screening calls may contain details that the research team needs to revisit. A recording provides a reference to the original interaction when questions arise during later review.
Calendax’s Call Recording feature retains recordings of calls, allowing research teams to return to the original screening call when needed.
AI Call Intelligence can help the team identify relevant information from the call, while the recording allows them to review the patient’s actual responses and the context in which they were given.
This gives the research team both the analyzed information and the original call for review.
Common Challenges When Screening Patients
Even with clearly defined eligibility criteria, screening can involve several operational challenges. These often arise when teams must manage protocol requirements, patient conversations, and documentation separately.
Translating Protocol Requirements Into Questions
Eligibility criteria describe study requirements, but they do not always read like questions that patients can answer directly. Research teams must interpret each requirement and express it clearly without changing its meaning.
A protocol-based questionnaire can simplify this preparation by generating questions from the study document. The research team can then review the questions before using them.
Maintaining Consistency Across Screening Calls
Different coordinators may approach conversations differently, especially when questions are prepared manually. A structured questionnaire provides a common framework for collecting eligibility information.
Consistent questions can reduce the likelihood of overlooking a screening point. They also make it easier to compare responses against the same protocol requirements.
Managing Screening Workloads
Research teams may receive numerous potential participant leads during recruitment. Conducting every initial screening call manually can place additional demands on staff time.
An AI Screening Agent can support automated initial screening, while Live Calling accommodates coordinator-led conversations. Both options use the prepared questionnaire as their starting point.
Reviewing and Documenting Call Information
Screening conversations can contain several details relevant to eligibility. Reviewing each call and organizing its information manually can add another task to the workflow.
AI Call Intelligence supports the analysis of call information, and Call Recording provides a reference for reviewing the original conversation. These capabilities address different parts of the same documentation and review process.
Keeping Questions Aligned With Protocol Changes
Protocol amendments can change eligibility requirements. Screening questions may therefore need revision to reflect the current protocol.
When eligibility requirements change, older screening questions may no longer reflect the study’s current requirements. Research teams should first review the amended protocol to identify changes that affect screening. They can then revise the questions and check them against the updated eligibility criteria before using them.
How Calendax Connects the Patient Screening Workflow
Patient screening can involve several transitions between protocol review, questionnaire preparation, screening, and call review. Calendax connects these stages within one workflow, so information gathered at one stage can support the next.
This connected approach gives research teams a consistent screening process without requiring them to manage each stage separately. It also provides a clearer path from the study’s eligibility requirements to the information collected during screening and reviewed afterward.
Frequently Asked Questions
What Are Inclusion and Exclusion Criteria?
Inclusion criteria describe the requirements a participant must meet for participating in a clinical trial. Exclusion criteria identify factors that prevent participation under the study protocol.
Why Are Inclusion and Exclusion Criteria Important?
They define the study population and guide the assessment of potential participants. Applying both categories helps research teams evaluate eligibility against the protocol.
What Are Examples of Inclusion Criteria?
Examples include age requirements, a confirmed diagnosis, specific disease characteristics, treatment history, and defined laboratory findings. The applicable requirements depend on the individual study.
What Are Examples of Exclusion Criteria?
Examples may include certain medical conditions, prohibited medications, recent treatments, or laboratory findings outside specified limits. The protocol determines which factors prevent participation.
How Do You Screen a Patient for a Clinical Trial?
Start by reviewing the protocol and identifying its eligibility criteria. Convert those requirements into screening questions, collect patient responses, and assess the information against the protocol.
Can AI Help With Clinical Trial Patient Screening?
AI can support initial screening by asking configured questions and assessing responses against defined criteria. Research teams remain responsible for reviewing uncertain cases and following study procedures.
How Can a Tool Generate a Screening Questionnaire From a Study Protocol?
A protocol-based tool can use the study document to generate questions from its eligibility criteria. The research team should review the resulting questionnaire before using it for patient screening.
Conclusion
Effective patient screening starts with understanding the study protocol and translating its eligibility requirements into clear questions. Calendax connects the key steps of the screening process in one workflow, from questionnaire generation to call review. This helps research teams collect and review patient information while keeping screening aligned with the study protocol.
