Clinical Research Interview Questions & Answers

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Clinical Research Interview Questions & Answers

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Clinical Research Interview Questions

Clinical Research Interview Questions
    1. Question 1. Explain Clinical Research?

      Answer :

      Clinical research refers to any kind of investigation in human subjects which aims to discover or check the clinical, pharmacological, and other pharmacodynamic effects of an investigational product.

    2. Question 2. Explain Various Types Of Clinical Trials?

      Answer :

      Clinical trials can be of several types. These are as follows:

      New approaches of prevention trials test like medications, vitamins, or other supplements which according to doctors may can lower the risk of development of a certain type of cancer. Generally the prevention trials are conducted with healthy people with no cancer history. Certain trials are also conducted with people who have cancer and want to reduce the chance of developing a new type of cancer or returning of cancer.

      Diagnostic trials are conducted usually on people who shows signs or symptoms of cancer whereas treatment trials are conducted with the people who actually have cancer. They answer certain questions and effectiveness of new treatment or a new way of using a standard treatment is judged. These trials test treatments such as new drugs, new approaches to surgery or radiation therapy, vaccines, or new combinations of treatments supportive care (also called Quality-of-life) trials explore ways to improve the comfort and quality of life of cancer patients and its survivors. These trials will be helpful in the study of treatment of patients experiencing nausea, vomiting, depression, sleep disorders, or other effects from cancer or its treatment. To detect cancer earlier screening trials are done and are often conducted to determine whether finding cancer at early stage of symptoms decreases the chance of dying. These trials include people who do not have any signs of cancer. Diagnostic trials study could be used to identify cancer more accurately. They are sometimes part of another cancer clinical trial. The genetics component of the trial also focus on how genetic makeup can affect diagnosis, detection, or response to cancer treatment.

    3. Question 3. Explain Clinical Trials ?

      Answer :

      There are Five phases of clinical Trials:

      Pre-clinical: animal tests and In vitro (test tube), to determine dosing and any other potential risks to administration in the human beings.

      Phase One:The determination of safe doses of a new drug by trials on healthy human volunteers and the drug’s effect on the body (pharmacodynamics) and the body’s effect on the drug (pharmokinetics). Often performed by CROs (Contract Research Organisations) or in large teaching hospitals.

      Phase Two: Treatment or the experimental drug is given to a large group of people (100-300) to see that the drug is effective or not for that treatment.

      Phase Three: Studies with large numbers of patients undertaken by GPs or in hospital. Comparing of the efficiency and side effects of the drug with existing placebos and treatments.

      Phase Four: Is performed after the product licence has been granted by the regulatory authorities. Industry conducts large, long term epidemiological studies to assess optimal use and for the marketing strategy of the drug these are essential. Safety (pharmacovigilance) is monitored by post marketing surveillance studies.

    4. Question 4. Why Sap Is Important?

      Answer :

      SAP is the document that contains detailed information regarding the statistical methods and study objectives to help in the production of the Clinical Study Report (CSR) including figures, summary tables, and subject data listings for Protocol. Documentation of the program variables and algorithms that will be used to generate summary statistics and statistical analysis are also contained in this.

    5. Question 5. What Do You Understand By Crt?

      Answer :

      CRT means Case Report Tabulation. CRT’s are sent to the FDA whenever a pharmaceutical company is submitting an NDA.

    6. Question 6. What Are All The Procs You Know?

      Answer :

      I know about many procedures like proc sort, proc report, proc format etc. I have generated the list report using the proc report; in this procedure I used subjid as order variable and sbd, trt_grp, dbd as display variables.

    7. Question 7. Explain Verification?

      Answer :

      Verification ensures the accuracy of the final tables and the quality of SAS programs which  generates the final tables. I selected the subset of the final summary tables for verification according to the instructions SOP and SAP.

    8. Question 8. Tell About Domains/datasets You Have Used In Your Studies?

      Answer :

      Medical History, ECG, Labs ,  Demog , Physical Exam, Adverse Events ,Vitals etc

    9. Question 9. Give Examples Of Edit Ckecks You Made In Your Programs?

      Answer :

      Demog: Body mass index is below expected and Weight is outside expected range

      ( check weight and height). DOB is greater than the Visit date or not.the Gender value is a valid one or invalid. Age is not within expected range.

      Adverse Event

      Visit Start is before birthdate or Stop is before the start. Study medicine discontinued due to the adverse event but completed

      Labs

      Result is within the normal range and also abnormal is not blank or the case can be ‘N’Result is outside the normal range and also abnormal is blank.

      Vitals

      Diastolic Blood pressure more than Systolic Blood Pressure

      Medical History

      Visit date prior to Screen datePhysicalPhysical exam is normal and also comment included.

    10. Question 10. Tell About Locf?

      Answer :

      Pharmaceutical companies spend several months to conduct longitudinal studies on human subject. It is unrealistic to expect patients to keep timely visit over such a long period of time. Despite all the efforts, patient data are not collected for some and these become missing values in a SAS data set later. For reporting, the most recent previously available value is substituted for each of the missing visits. This is known as Last Observation Carried Forward (LOCF).LOCF doesn’t mean the last SAS dataset observation which gets carried forward rather it means last non-missing value carried forward. It is the values of individual measures which are actually “observations” in this case. Also if there are multiple variables containing these values then they will be carried forward independently.

    11. Question 11. Explain Crm?

      Answer :

      CRM means Clinical Research Managers. They supervise informed consent forms for clinical trials, case report forms and design and writing of protocols. CRM ensures that Case Report Forms are reviewed timely and submitted to the data management group.

    12. Question 12. What Is A Clinical Trial?

      Answer :

      Clinical trials, also known as clinical studies, test potential treatments in human volunteers to see whether they should be approved for wider use in the general population. A treatment could be a drug, medical device, or biologic, such as a vaccine, blood product, or gene therapy.

      Potential treatments, however, must first be studied in laboratory animals to determine its safety before they can be tried in people. Treatments having acceptable safety profiles and showing the most promise in the animal model are then moved into clinical trials.

      Clinical trials are an integral part of new product discovery and development, and are required by all regulatory agencies (e.g. the Food and Drug Administration (FDA) in the United States), before a new product can be brought to the market.

    13. Question 13. Why Participate In A Clinical Trial?

      Answer :

      The decision to participate in a clinical trial is one that should be made by the patient and his/her loved ones working in close communication with the physician. Participants in clinical trials play a key role in drug development and discovery;

      clinical trials contribute to knowledge and progress in treating and preventing diseases. First and foremost participants can help others by contributing to medical knowledge and improving public health. Further, a participant does not need to be a patient diagnosed with a specific disease or health problem as some clinical trials, focusing on safety, will include healthy volunteers.

      Patients who take part in clinical trials may benefit from the treatments they receive. As part of a clinical trial, a patient will receive either the experimental treatment being tested, an accepted standard treatment for the condition, or a placebo. It is important to understand that there is no guarantee that any treatment received in a clinical trial will produce the desired results.

    14. Question 14. What Should One Expect During A Clinical Trial?

      Answer :

      For all types of trials, participants work with a research or clinical trial team, including doctors, nurses, social workers, and other health care professionals. Prior to the trial, the research team will check the health of the participant and review any special instructions for trial participation. As the trial begins and throughout its duration, the research team will administer treatment, (whether that be the experimental treatment, a standard treatment or a placebo depending on the requirements of the study) and monitor the participant on a regular basis to determine effectiveness and side-effects of the treatment.

      Ongoing communication is an important part of any clinical trial and after the trial has been completed the research team will stay in touch with the participant for a specified period of time to assess any effects of the treatment after treatment has stopped. The data collected before, during and after the trial is a crucial component to the drug’s approval submission to drug regulatory agencies.

    15. Question 15. What Is Informed Consent?

      Answer :

      Informed consent is the verification of a person’s willingness to participate in a research project. Prior to enrollment in a clinical trial, researchers inform participants about all relevant study details and known risks.

      Participants are then provided an informed consent document that details all the important study information including its purpose, duration, risks, potential benefits, required procedures, and key contacts. Once participants have had a chance to read this form and ask questions, if they agree to participate in the trial,they will be asked to sign an informed consent document. The informed consent document is not a contract.

      Participation in the clinical trial is voluntary and the participant may withdraw from the trial at any time without penalty or loss of benefits to which he/she is otherwise entitled. The research team actively maintains informed consent throughout the entire trial by providing the participant with any new or developing information, as needed.

    16. Question 16. Who Can Participate In A Clinical Trial?

      Answer :

      Before joining a clinical trial, a participant must meet certain criteria. This is an important aspect of any clinical trial to ensure that the treatment is being investigated accurately and safely. Factors that allow someone to participate in a clinical trial are called "inclusion criteria," and those that disallow someone from participating are called "exclusion criteria."

      These criteria are used to identify appropriate participants. Acceptance of a participant into a clinical trial is based on such factors as age, gender, the type and stage of disease, previous treatment history, and other medical conditions.

      For example, some research studies seek participants with specific illnesses or conditions, while others need healthy participants. Some studies may include only men, some studies may include men and women but not women of child-bearing potential, and some studies may include men and women within a specific age range (ie, 18-65 years of age). These criteria are defined by the amount of scientific and safety information that is known about a treatment being tested at the time the trial is planned to start.

    17. Question 17. What Are The Benefits And Risks Of Participating In A Clinical Trial?

      Answer :

      Benefits include: Playing an active role in one’s health care, gaining access to medications that may not be available for a significant amount of time, and helping others by participating in the trial so the treatment can potentially be approved and made available to the public.

      Risks include: Participation in a clinical trial may involve some risks that your doctor will explain in more detail. These risks include:

      • side-effects that are known and those that have not yet been identified;
      • risks associated with study procedures;
      • the experimental treatment may be ineffective or less effective than the current standard;
      • the experimental treatment may not work for every patient.

      Additionally, in some clinical trials the patient may not receive the experimental treatment,but the current standard or a placebo.

      In addition to the risks listed above, the trial might require the participant’s time and attention—including trips to the study site, more treatments, hospital stays or complex dosage requirements.

    18. Question 18. Will I Be Paid To Participate In The Clinical Trial Or Is There A Cost To Participate?

      Answer :

      Compensation for participants is unique with each clinical trial and each sponsoring partner. This is a question that should be discussed with the researcher when considering participating in a clinical trial.

      The experimental compound as well as tests and procedures associated with the trial are usually provided at no cost to the participant. In most cases, the cost of routine tests and procedures—not associated with the trial—are the responsibility of the participant, or the participant’s insurance carrier.

    19. Question 19. What Is A Protocol?

      Answer :

      A protocol is the study plan on which the clinical trial is based. Each trial is carefully designed to safeguard the health of participants as well as answer specific research questions. The protocol describes in detail what types of people may participate in the trial, the schedule of tests, procedures, medications, dosages, and length of the study.

    20. Question 20. What Is A Placebo?

      Answer :

      A placebo is an inactive pill, liquid or powder that has no treatment value. In a placebo controlled trial, some portion of the participants will receive placebo instead of an active drug or experimental treatment to assess the experimental treatment’s effectiveness and safety relative to no treatment at all.

    21. Question 21. What Is A Control Or Control Group?

      Answer :

      A control is the standard by which experimental observations are evaluated. In many clinical trials, one group of patients will be given an experimental drug or treatment, while the control group is given either a standard treatment for the illness or a placebo.

    22. Question 22. What Are The Phases Of Clinical Trials?

      Answer :

      Clinical trials are conducted in a series of stages, called phases, each having specific goals. This process provides information about the treatment in a controlled process intended to also protect the participants. The number of participants in each phase of the trial may be based on the overall incidence of the condition being studied.

      Clinical trials are usually classified into one of four phases:

      Phase 1: Sometimes called dosing, pharmacokinetic, or clinical pharmacology studies, these trials test methods of administering the treatment (e.g. by mouth, injection, etc.) and how often, as well as the safety of the treatment. These trials usually involve a small number of healthy participants (20-80 healthy volunteers).

      Phase 2: These trials continue to test the safety of the treatment and evaluate how well the treatment is tolerated and how well it works. Phase II studies usually evaluate the treatment in a specific condition. These trials usually involve 100-300 patients.

      Phase 3: These trials compare the experimental treatment to the current standard of treatment for a specific condition, establishing both efficacy and adverse events. Participants are usually assigned to either receive the experimental treatment or the current standard. Phase III trials typically enroll large numbers of patients (1,000-3,000) and may be carried out at hospitals and doctors’ offices nationwide.

      Phase 4: Post-marketing studies to gain a greater understanding of the treatment, including its risks, benefits, and optimal use. Depending on the purpose of these studies they may be small studies like the Phase I type OR may be even larger than a Phase III study.

    23. Question 23. What Is A Prospective, Randomized, Double-blind, Controlled Clinical Trial?

      Answer :

      A prospective, randomized, double-blind, controlled clinical trial is the most rigorous clinical trial design, and the one that regulatory agencies mandate must be conducted to demonstrate a medication’s effectiveness and safety. In a new drug application, these studies represent the highest quality data regarding the drug and its actions, and form the basis for approval. In this study design, patients are carefully selected for participation and are randomly assigned to receive the experimental drug or a matching active drug or placebo. Neither the patient nor the treating physician knows which treatment was provided, thereby eliminating possible bias.

      Individual definitions of the study descriptions are:

      Prospective: Forward looking, beginning before the patient has started treatment.

      Randomized: Patients are randomly assigned to receive the experimental treatment or alternative (e.g. standard of care or placebo)

      Double-blind: Neither patients nor the study staff knows which participants are receiving the experimental drug and which are receiving a placebo or standard treatment.

      Controlled: One group of patients will be given an experimental drug or treatment, while a second group is given either a standard treatment for the illness or a placebo.

    24. Question 24. What Are Side Effects And Adverse Reactions?

      Answer :

      1. Side effects include any undesired actions or effects of a drug or treatment.
      2. Experimental drugs must be evaluated for both immediate and long-term side effects.

    25. Question 25. Can A Participant Leave A Clinical Trial At Any Point?

      Answer :

      Yes. A participant can leave a clinical trial at any time. The participant should let the research team know when withdrawing from the trial and the reasons for leaving the study.

    26. Question 26. Who Sponsors A Clinical Trial?

      Answer :

      Clinical trials can be sponsored or funded by a variety of organizations or individuals including physicians, medical institutions, foundations, voluntary groups, and pharmaceutical companies, in addition to government agencies such as the National Institutes of Health (NIH), the Department of Defense (DOD), Human Health and Services (HHS), and the Department of Veteran's Affairs (VA).

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