During the first consultation (V1), the doctor will present the patient on the therapeutic treatment information related to diabetes according to the shared decision making (options, benefits, risks) with the assistance of decision support tools. The decision-making visit will take place after a reflection period of 8 to 15 days after V1. A discussion based on the feedback from this period of reflection will take place between the two actors and either there is a common agreement on the decision taken (shared decision-making), or the decision is taken by the patient, or the decision is made by the physician at the request of the patient. A social sciences and humanities methodologist will attend each consultation, onsite or in videoconferencing. After the consultation, he realized a semi-structured interview with the patient. During this interview, the patient filled the self-administered questionnaires: SDM-Q-9, SURE, CollaboRATE, Spielberger test and the research team questionnaire

Decision-making for insulin therapy is based on the usual practice defined in each Cystic Fibrosis Centers Competences with decision-making procedures specific to each center and doctor. The decision-making process is generally carried out in two consultations.

A social sciences and humanities methodologist will attend each consultation, onsite or in videoconferencing.

After the consultation, he realized a semi-structured interview with the patient. During this interview, the patient filled the self-administered questionnaires (SDM-Q-9, SURE, CollaboRATE, Spielberger test and the research team questionnaire).

The intervention consists of 5 components: 1) Online shared decision making training (2 hours, e-learning); 2) Individual coaching for doctors by a shared decision making expert; 3) Implementation of the shared decision making; 4) Link to institutional approaches to patient engagement; 5) Integration of the shared decision making into the multidisciplinary consultation meetings of the Cystic Fibrosis Centers Competences.

The SDM-Q-9 is a self-administered questionnaire of 9 items coded on a 6-point Likert scale. A total score between 0 and 45 is calculated from the sum of the scores obtained for the 9 questions. This score is converted between 0 and 100 by multiplying by a factor of 20/9, 0 indicating a non adoption of shared decision making as perceived by the patient and conversely 100 indicating an adoption of shared decision making as perceived by the patient. The total score will be described in each group by mean, standard deviation, median, quartiles and extent, and will be compared between the 2 groups with a non-parametric Wilcoxon test.