diff --git a/studies_base/data/studies_base_data.xml b/studies_base/data/studies_base_data.xml
index 11645b9..6668a8e 100644
--- a/studies_base/data/studies_base_data.xml
+++ b/studies_base/data/studies_base_data.xml
@@ -24,9 +24,9 @@
         </record>
 
         <!-- study.participant.progress.status -->
-        <record id="study_participant_progress_status_REGISTRED" model="study.participant.progress.status">
+        <record id="study_participant_progress_status_REGISTERED" model="study.participant.progress.status">
             <field name="name">Inscrit</field>
-            <field name="value">REGISTRED</field>
+            <field name="value">REGISTERED</field>
         </record>
 
         <record id="study_participant_progress_status_ACTIVE" model="study.participant.progress.status">
@@ -62,6 +62,47 @@
         </record>
 
 
+        <!-- study.phase -->
+        <record id="study_phase_NA" model="study.phase">
+            <field name="name">Sans phase</field>
+            <field name="value">NA</field>
+        </record>
+
+        <record id="study_phase_EARLY_PHASE_1" model="study.phase">
+            <field name="name">Phase précoce 1</field>
+            <field name="value">EARLY-PHASE-1</field>
+        </record>
+
+        <record id="study_phase_PHASE_1" model="study.phase">
+            <field name="name">Phase 1</field>
+            <field name="value">PHASE-1</field>
+        </record>
+
+        <record id="study_phase_PHASE_1_PHASE_2" model="study.phase">
+            <field name="name">Phase 1 / Phase 2</field>
+            <field name="value">PHASE-1-PHASE-2</field>
+        </record>
+
+        <record id="study_phase_PHASE_2" model="study.phase">
+            <field name="name">Phase 2</field>
+            <field name="value">PHASE-2</field>
+        </record>
+
+        <record id="study_phase_PHASE_2_PHASE_3" model="study.phase">
+            <field name="name">Phase 2 / Phase 3</field>
+            <field name="value">PHASE-2-PHASE-3</field>
+        </record>
+
+        <record id="study_phase_PHASE_3" model="study.phase">
+            <field name="name">Phase 3</field>
+            <field name="value">PHASE-3</field>
+        </record>
+
+        <record id="study_phase_PHASE_4" model="study.phase">
+            <field name="name">Phase 4</field>
+            <field name="value">PHASE-4</field>
+        </record>
+
 
         <!-- study.questionnaire.status -->
         <record id="study_questionnaire_status_DRAFT" model="study.questionnaire.status">
@@ -121,7 +162,7 @@
         </record>
 
 
-        
+
 
 
         <!-- study.questionnaire.subject.type -->
diff --git a/studies_base/models/study_participant.py b/studies_base/models/study_participant.py
index dce2281..6bf0f84 100644
--- a/studies_base/models/study_participant.py
+++ b/studies_base/models/study_participant.py
@@ -10,15 +10,24 @@ class StudyParticipant(models.Model):
     identifier_primary_id = fields.Char("Identifiant Seintinelles", readonly=True)
     part_of = fields.Many2one("study.study", string="Étude", readonly=True)
 
-    subject = fields.Many2one("res.partner", string="Contact", domain=[("category_patient",'=',1)], readonly=True)
+    subject = fields.Many2one(
+        "res.partner",
+        string="Contact",
+        domain=[("category_patient", "=", 1)],
+        readonly=True,
+    )
     firstname = fields.Char("Prénom", related="subject.firstname")
     lastname = fields.Char("Nom", related="subject.lastname")
-    progress_status = fields.Many2one("study.participant.progress.status", string="Statut de la participation", readonly=True)
-    state = fields.Many2one("study.participant.state", string="État de la participation", readonly=True)
-        
-    identifier = fields.Char("Idientifiants de l'enrôlement", readonly=True)
+    progress_status = fields.Many2one(
+        "study.participant.progress.status",
+        string="Statut de la participation",
+        readonly=True,
+    )
+    state = fields.Many2one(
+        "study.participant.state", string="État de la participation", readonly=True
+    )
+
+    identifier = fields.Char("Identifiants de l'enrôlement", readonly=True)
 
     created = fields.Datetime("Date de création")
     updated = fields.Datetime("Date mise à jour")
-
-