diff --git a/migrations/versions/93a1e2ce38dc_.py b/migrations/versions/93a1e2ce38dc_.py
new file mode 100644
index 0000000..2eccb84
--- /dev/null
+++ b/migrations/versions/93a1e2ce38dc_.py
@@ -0,0 +1,30 @@
+"""empty message
+
+Revision ID: 93a1e2ce38dc
+Revises: 6cd52db404f6
+Create Date: 2021-03-29 15:06:32.100287
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '93a1e2ce38dc'
+down_revision = '6cd52db404f6'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.drop_column('study_details', 'DSMB')
+    op.add_column('study_details', sa.Column('DSMB', sa.VARCHAR, nullable=True))
+    op.add_column('study_details', sa.Column('REVIEW_TYPE', sa.Integer, nullable=True))
+    op.add_column('study_details', sa.Column('REVIEWTYPENAME', sa.VARCHAR, nullable=True))
+
+
+def downgrade():
+    op.drop_column('study_details', 'DSMB')
+    op.add_column('study_details', sa.Column('DSMB', sa.Integer, nullable=True))
+    op.drop_column('study_details', 'REVIEW_TYPE')
+    op.drop_column('study_details', 'REVIEWTYPENAME')