Development of a Clinical Trial Specific Question Prompt List

Inclusion Criteria: * Population Segment 1 who have participated in a clinical trial * Diagnosis and treatment at MSKCC of lung, prostate or breast cancer * Completion of a Phase I, II, or III clinical trial at MSKCC * Ability to provide informed consent Patient caregiver eligibility requirements will be: * Nomination by patient as the primary caregiver * Ability to provide informed consent Population Segment 2 who have not participated in a clinical trial: * Diagnosis and treatment at MSKCC of lung, prostate or breast cancer or the primary patient caregiver * Ability to provide informed consent Patient caregiver eligibility requirements will be: * Nomination by patient as the primary caregiver * Ability to provide informed consent Population Segment 3 who are health care professionals: * A current health care professional at MSKCC * Current involvement in recruiting patients with lung, prostate or breast cancer to Phase I,II, or III clinical trials at MSKCC * Ability to provide informed consent Exclusion Criteria: Potential subjects will be considered ineligible for either/both phases of this study if they are: * Fewer than 18 years of age * Cognitively or physically impaired, rendering them incapable of providing informed consent to participate in the study * Population Segment 2 participants will be excluded if they have ever participated in a clinical trial.