diff --git a/database-connector/src/main/java/life/qbic/projectmanagement/experiment/persistence/SamplePreviewJpaRepository.java b/database-connector/src/main/java/life/qbic/projectmanagement/experiment/persistence/SamplePreviewJpaRepository.java
index 4b540c478..4d132deb3 100644
--- a/database-connector/src/main/java/life/qbic/projectmanagement/experiment/persistence/SamplePreviewJpaRepository.java
+++ b/database-connector/src/main/java/life/qbic/projectmanagement/experiment/persistence/SamplePreviewJpaRepository.java
@@ -1,5 +1,9 @@
 package life.qbic.projectmanagement.experiment.persistence;
 
+import jakarta.persistence.criteria.CriteriaBuilder;
+import jakarta.persistence.criteria.Predicate;
+import jakarta.persistence.criteria.Root;
+import java.util.ArrayList;
 import java.util.List;
 import java.util.Objects;
 import life.qbic.persistence.OffsetBasedRequest;
@@ -65,17 +69,12 @@ private Specification<SamplePreview> generateExperimentIdandFilterSpecification(
     Specification<SamplePreview> batchLabelSpec = SamplePreviewSpecs.batchLabelContains(filter);
     Specification<SamplePreview> bioReplicateLabelSpec = SamplePreviewSpecs.BioReplicateLabelContains(
         filter);
-  /*
-    Specification<SamplePreview> experimentalGroupSpec = SamplePreviewSpecs.experimentalGroupContains(
-        filter);
-
-   */
     Specification<SamplePreview> speciesSpec = SamplePreviewSpecs.speciesContains(filter);
     Specification<SamplePreview> specimenSpec = SamplePreviewSpecs.specimenContains(filter);
     Specification<SamplePreview> analyteSpec = SamplePreviewSpecs.analyteContains(filter);
-
+    Specification<SamplePreview> conditionSpec = SamplePreviewSpecs.conditionContains(filter);
     Specification<SamplePreview> containsFilterSpec = Specification.anyOf(sampleCodeSpec,
-        sampleLabelSpec, batchLabelSpec, bioReplicateLabelSpec, speciesSpec,
+        sampleLabelSpec, batchLabelSpec, bioReplicateLabelSpec, conditionSpec, speciesSpec,
         specimenSpec,
         analyteSpec);
     return Specification.where(experimentIdSpec).and(containsFilterSpec);
@@ -119,14 +118,14 @@ public static Specification<SamplePreview> sampleLabelContains(String filter) {
               builder.like(root.get("sampleLabel"), "%" + filter + "%");
     }
 
-    /*
-        public static Specification<SamplePreview> experimentalGroupContains(String filter) {
-          return (root, query, builder) ->
-              StringUtil.isBlank(filter) ?
-                  builder.conjunction() :
-                  builder.any(), "%" + filter + "%")
-        }
-    */
+
+    public static Specification<SamplePreview> conditionContains(String filter) {
+      return (root, query, builder) ->
+          StringUtil.isBlank(filter) ?
+              builder.conjunction() :
+              generateConditionPredicates(root, builder, filter);
+    }
+
     public static Specification<SamplePreview> speciesContains(String filter) {
       return (root, query, builder) ->
           StringUtil.isBlank(filter) ?
@@ -148,4 +147,22 @@ public static Specification<SamplePreview> analyteContains(String filter) {
               builder.like(root.get("analyte"), "%" + filter + "%");
     }
   }
+
+  private static Predicate generateConditionPredicates(Root<SamplePreview> root,
+      CriteriaBuilder builder, String filter) {
+    List<Predicate> predicates = new ArrayList<>();
+    Predicate experimentalVariableNamePredicate = builder.like(
+        root.get("experimentalGroup").get("condition").get("variableLevels").get("variableName")
+            .as(String.class), "%" + filter + "%");
+    predicates.add(experimentalVariableNamePredicate);
+    Predicate experimentalValueValuePredicate = builder.like(
+        root.get("experimentalGroup").get("condition").get("variableLevels")
+            .get("experimentalValue").get("value"), "%" + filter + "%");
+    predicates.add(experimentalValueValuePredicate);
+    Predicate experimentalValueUnitPredicate = builder.like(
+        root.get("experimentalGroup").get("condition").get("variableLevels")
+            .get("experimentalValue").get("unit"), "%" + filter + "%");
+    predicates.add(experimentalValueUnitPredicate);
+    return builder.or(predicates.toArray(new Predicate[0]));
+  }
 }
diff --git a/projectmanagement/src/main/java/life/qbic/projectmanagement/application/sample/SampleInformationService.java b/projectmanagement/src/main/java/life/qbic/projectmanagement/application/sample/SampleInformationService.java
index bb0f6b9ba..f3e9ba0ca 100644
--- a/projectmanagement/src/main/java/life/qbic/projectmanagement/application/sample/SampleInformationService.java
+++ b/projectmanagement/src/main/java/life/qbic/projectmanagement/application/sample/SampleInformationService.java
@@ -59,8 +59,6 @@ public List<SamplePreview> queryPreview(ExperimentId experimentId, int offset, i
         limit,
         sortOrders, filter);
     // the list must be modifiable for spring security to filter it
-    previewList.forEach(
-        samplePreview -> System.out.println(samplePreview.experimentalVariables().size()));
     return new ArrayList<>(previewList);
   }
 
diff --git a/projectmanagement/src/main/java/life/qbic/projectmanagement/application/sample/SamplePreview.java b/projectmanagement/src/main/java/life/qbic/projectmanagement/application/sample/SamplePreview.java
index 70b43dc78..9da03a835 100644
--- a/projectmanagement/src/main/java/life/qbic/projectmanagement/application/sample/SamplePreview.java
+++ b/projectmanagement/src/main/java/life/qbic/projectmanagement/application/sample/SamplePreview.java
@@ -6,19 +6,14 @@
 import jakarta.persistence.Embedded;
 import jakarta.persistence.EmbeddedId;
 import jakarta.persistence.Entity;
-import jakarta.persistence.FetchType;
 import jakarta.persistence.JoinColumn;
-import jakarta.persistence.OneToMany;
 import jakarta.persistence.OneToOne;
 import jakarta.persistence.Table;
-import java.util.ArrayList;
-import java.util.List;
 import java.util.Objects;
 import life.qbic.projectmanagement.domain.project.experiment.BiologicalReplicate;
 import life.qbic.projectmanagement.domain.project.experiment.Experiment;
 import life.qbic.projectmanagement.domain.project.experiment.ExperimentId;
 import life.qbic.projectmanagement.domain.project.experiment.ExperimentalGroup;
-import life.qbic.projectmanagement.domain.project.experiment.ExperimentalVariable;
 import life.qbic.projectmanagement.domain.project.experiment.vocabulary.Analyte;
 import life.qbic.projectmanagement.domain.project.experiment.vocabulary.Species;
 import life.qbic.projectmanagement.domain.project.experiment.vocabulary.Specimen;
@@ -55,9 +50,6 @@ public class SamplePreview {
   private String species;
   private String specimen;
   private String analyte;
-  @OneToMany(fetch = FetchType.EAGER, orphanRemoval = true, cascade = CascadeType.ALL)
-  @JoinColumn(name = "experimentId", referencedColumnName = "experiment_id")
-  private final List<ExperimentalVariable> experimentalVariables = new ArrayList<>();
 
   protected SamplePreview() {
     //needed by JPA
@@ -159,10 +151,6 @@ public ExperimentalGroup experimentalGroup() {
     return experimentalGroup;
   }
 
-  public List<ExperimentalVariable> experimentalVariables() {
-    return experimentalVariables;
-  }
-
   @Override
   public boolean equals(Object o) {
     if (this == o) {