Please assess the completion status of the following clinical trial:

Trial Title: Efficacy of a Decision Aid for Hydroxyurea in Sickle Cell Disease

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: FACTORIAL
- Observational Model: None
- Primary Purpose: SUPPORTIVE_CARE
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Individuals with sickle cell disease ages 18 to 80 years, inclusive Or parents of children (ages 9 months to \<18 years) whose child has not started Hydroxyurea~* Patients who have made a past decision to not obtain treatment with Hydroxyurea or who have not obtained treatment with Hydroxyurea in past 12 months. Or parents of children who have made a past decision to not obtain treatment with Hydroxyurea or who have not obtained treatment with Hydroxyurea in the past 12 months.~* Patients or parents of children who's doctor identifies the patient/child as someone who should be on Hydroxyurea~* All participants will be able to comprehend English~* Subjects will have access to the internet from iPad, smart phone, or personal computer~* For the cognitive interviews participants will not be eligible to consider hydroxyurea as a treatment option~Exclusion Criteria:~* Patient who has already made a decision to begin and has started Hydroxyurea. Or parent who has already made a decision for their child to begin and the child has started Hydroxyurea.~* Participated in prior Decision Aid study

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 80 Years
- Healthy Volunteers: f

Study Arms:
- Training for use of web based Decision Aid (Type: EXPERIMENTAL): Subjects will be provided access to the decision aid website and will receive a log-in identification, user password and url at time of consent and will be guided during a 30 minutes training session to use the website. They will ben be asked to continue to peruse the website at home to learn more about hydroxyurea. Participants in each group will be further randomized to 1) pretest surveys and posttest surveys; and 2)only posttest surveys
- No training for use of web based Decision Aid (Type: PLACEBO_COMPARATOR): Subjects will receive a log-in identification, user password and url at time of scheduled appointment for web access. They will not receive training but will be instructed to maneuver through the website and access the information pertaining to hydroxyurea and access the videos for the purposes of learning. Participants will be asked to peruse the website for 30 minutes at time of consent then to continue to access the website at home to learn about hydroxyurea treatment. Participants in each group will be further randomized to 1) pretest surveys and posttest surveys; and 2)only posttest surveys

Based on this trial design, predict the completion outcome and termination type (if applicable).