diff --git a/CHANGELOG.md b/CHANGELOG.md
index d407954..ece3bdd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -190,3 +190,4 @@
 
 ## 0.5.0
 - integrated oa-configurator package configuration and adapted omop-constructs to current orm-loader / omop-alchemy compatibility changes
+
diff --git a/pyproject.toml b/pyproject.toml
index cd72a67..67ca320 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "omop-constructs"
-version = "0.5.0"
+version = "0.5.1"
 description = "For building complex constructs on top of the omop-alchemy library."
 readme = "README.md"
 authors = [
diff --git a/src/omop_constructs/alchemy/episodes/modality_intent_mv.py b/src/omop_constructs/alchemy/episodes/modality_intent_mv.py
index 950bd02..2e76eff 100644
--- a/src/omop_constructs/alchemy/episodes/modality_intent_mv.py
+++ b/src/omop_constructs/alchemy/episodes/modality_intent_mv.py
@@ -6,6 +6,7 @@
 from ...core.constructs import register_construct
 from ...core.sql import select_all_columns
 from .modality_intent_join import episode_join
+from .treatment_envelope_mv import TreatmentEnvelopeMV
 
 @register_construct
 class TreatmentIntentMV(
@@ -58,12 +59,20 @@ class TreatmentIntentMV(
         sa.func.coalesce(TreatmentIntentMV.rt, False).label("rt"),
         sa.func.coalesce(TreatmentIntentMV.sact, False).label("sact"),
         sa.func.coalesce(TreatmentIntentMV.concurrent, False).label("concurrent"),
+        sa.and_(
+            sa.func.coalesce(TreatmentIntentMV.rt, False),
+            sa.func.coalesce(TreatmentEnvelopeMV.concurrent_chemort, False)
+        ).label("concurrent_rt"),
     )
     .outerjoin(
         TreatmentIntentMV,
         TreatmentIntentMV.treatment_episode_parent_id
         == ConditionEpisodeMV.episode_id
     )
+    .outerjoin(
+        TreatmentEnvelopeMV,
+        TreatmentEnvelopeMV.condition_episode == ConditionEpisodeMV.episode_id
+    )
 )
 
 @register_construct
@@ -74,7 +83,11 @@ class ConditionTreatmentIntentMV(
     __mv_name__ = "condition_episode_intent_mv"
     __mv_select__ = episode_summary_select
     __mv_index__ = "episode_id"
-    __deps__ = (ConditionEpisodeMV.__mv_name__, TreatmentIntentMV.__mv_name__)
+    __deps__ = (
+        ConditionEpisodeMV.__mv_name__,
+        TreatmentIntentMV.__mv_name__,
+        TreatmentEnvelopeMV.__mv_name__,
+    )
     __tablename__ = __mv_name__
     __table_args__ = {"extend_existing": True}
 
@@ -98,3 +111,4 @@ class ConditionTreatmentIntentMV(
     rt: so.Mapped[bool | None] = so.mapped_column(sa.Boolean, nullable=True)
     sact: so.Mapped[bool | None] = so.mapped_column(sa.Boolean, nullable=True)
     concurrent: so.Mapped[bool | None] = so.mapped_column(sa.Boolean, nullable=True)
+    concurrent_rt: so.Mapped[bool | None] = so.mapped_column(sa.Boolean, nullable=True)
diff --git a/tests/artifacts/construct_registry_schema.csv b/tests/artifacts/construct_registry_schema.csv
index ccb6b12..874f999 100644
--- a/tests/artifacts/construct_registry_schema.csv
+++ b/tests/artifacts/construct_registry_schema.csv
@@ -20,21 +20,22 @@ bsa_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,BSADxMV,materialized
 bsa_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,BSADxMV,materialized_view,condition_episode_mv,person_id,,12,episode_start_date,DATE,true,false
 bsa_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,BSADxMV,materialized_view,condition_episode_mv,person_id,,13,episode_end_date,DATE,true,false
 bsa_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,BSADxMV,materialized_view,condition_episode_mv,person_id,,14,episode_delta_days,INTEGER,true,false
-condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv,episode_id,,1,mv_id,INTEGER,false,true
-condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv,episode_id,,2,episode_id,INTEGER,false,false
-condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv,episode_id,,3,person_id,INTEGER,false,false
-condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv,episode_id,,4,episode_concept_id,INTEGER,false,false
-condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv,episode_id,,5,episode_label,VARCHAR,false,false
-condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv,episode_id,,6,episode_start_date,DATE,false,false
-condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv,episode_id,,7,episode_end_date,DATE,false,false
-condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv,episode_id,,8,treatment_episode_id,INTEGER,true,false
-condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv,episode_id,,9,treatment_episode_start_date,DATE,true,false
-condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv,episode_id,,10,treatment_episode_end_date,DATE,true,false
-condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv,episode_id,,11,treatment_intent_concept_id,INTEGER,true,false
-condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv,episode_id,,12,treatment_intent_name,VARCHAR,true,false
-condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv,episode_id,,13,rt,BOOLEAN,true,false
-condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv,episode_id,,14,sact,BOOLEAN,true,false
-condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv,episode_id,,15,concurrent,BOOLEAN,true,false
+condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv|treatment_envelope_mv,episode_id,,1,mv_id,INTEGER,false,true
+condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv|treatment_envelope_mv,episode_id,,2,episode_id,INTEGER,false,false
+condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv|treatment_envelope_mv,episode_id,,3,person_id,INTEGER,false,false
+condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv|treatment_envelope_mv,episode_id,,4,episode_concept_id,INTEGER,false,false
+condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv|treatment_envelope_mv,episode_id,,5,episode_label,VARCHAR,false,false
+condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv|treatment_envelope_mv,episode_id,,6,episode_start_date,DATE,false,false
+condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv|treatment_envelope_mv,episode_id,,7,episode_end_date,DATE,false,false
+condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv|treatment_envelope_mv,episode_id,,8,treatment_episode_id,INTEGER,true,false
+condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv|treatment_envelope_mv,episode_id,,9,treatment_episode_start_date,DATE,true,false
+condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv|treatment_envelope_mv,episode_id,,10,treatment_episode_end_date,DATE,true,false
+condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv|treatment_envelope_mv,episode_id,,11,treatment_intent_concept_id,INTEGER,true,false
+condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv|treatment_envelope_mv,episode_id,,12,treatment_intent_name,VARCHAR,true,false
+condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv|treatment_envelope_mv,episode_id,,13,rt,BOOLEAN,true,false
+condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv|treatment_envelope_mv,episode_id,,14,sact,BOOLEAN,true,false
+condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv|treatment_envelope_mv,episode_id,,15,concurrent,BOOLEAN,true,false
+condition_episode_intent_mv,omop_constructs.alchemy.episodes.modality_intent_mv,ConditionTreatmentIntentMV,materialized_view,condition_episode_mv|episode_treatment_mv|treatment_envelope_mv,episode_id,,16,concurrent_rt,BOOLEAN,true,false
 condition_episode_mv,omop_constructs.alchemy.episodes.condition_episode_mv,ConditionEpisodeMV,materialized_view,,episode_id,,1,episode_id,INTEGER,false,true
 condition_episode_mv,omop_constructs.alchemy.episodes.condition_episode_mv,ConditionEpisodeMV,materialized_view,,episode_id,,2,person_id,INTEGER,false,false
 condition_episode_mv,omop_constructs.alchemy.episodes.condition_episode_mv,ConditionEpisodeMV,materialized_view,,episode_id,,3,episode_concept_id,INTEGER,false,false