diff --git a/backend/packages/Upgrade/src/api/controllers/ExperimentClientController.ts b/backend/packages/Upgrade/src/api/controllers/ExperimentClientController.ts
index 5713161d03..4e6709435e 100644
--- a/backend/packages/Upgrade/src/api/controllers/ExperimentClientController.ts
+++ b/backend/packages/Upgrade/src/api/controllers/ExperimentClientController.ts
@@ -1,4 +1,13 @@
-import { JsonController, Post, Body, UseBefore, Req, InternalServerError, Delete } from 'routing-controllers';
+import {
+  JsonController,
+  Post,
+  Body,
+  UseBefore,
+  Req,
+  InternalServerError,
+  Delete,
+  Authorized,
+} from 'routing-controllers';
 import { ExperimentService } from '../services/ExperimentService';
 import { ExperimentAssignmentService } from '../services/ExperimentAssignmentService';
 import { MarkExperimentValidator } from './validators/MarkExperimentValidator';
@@ -19,7 +28,6 @@ import { ExperimentUserAliasesValidator } from './validators/ExperimentUserAlias
 import { Metric } from '../models/Metric';
 import * as express from 'express';
 import { AppRequest } from '../../types';
-import { env } from '../../env';
 import flatten from 'lodash.flatten';
 import { CaliperLogEnvelope } from './validators/CaliperLogEnvelope';
 import { ExperimentUserValidator } from './validators/ExperimentUserValidator';
@@ -1090,13 +1098,9 @@ export class ExperimentClientController {
    *          '500':
    *            description: DEMO mode is disabled
    */
+  @Authorized()
   @Delete('clearDB')
   public async clearDB(@Req() request: AppRequest): Promise<string> {
-    // if DEMO mode is enabled, then clear the database:
-    if (env.app.demo) {
-      await this.experimentUserService.clearDB(request.logger);
-      return 'DB truncate successful';
-    }
-    return Promise.resolve('DEMO mode is disabled. You cannot clear DB.');
+    return this.experimentUserService.clearDB(request.logger);
   }
 }
diff --git a/backend/packages/Upgrade/src/api/controllers/ExperimentClientController.v1.ts b/backend/packages/Upgrade/src/api/controllers/ExperimentClientController.v1.ts
index d36fa28c8e..481ef7e1c1 100644
--- a/backend/packages/Upgrade/src/api/controllers/ExperimentClientController.v1.ts
+++ b/backend/packages/Upgrade/src/api/controllers/ExperimentClientController.v1.ts
@@ -7,7 +7,7 @@ import {
   InternalServerError,
   Delete,
   Patch,
-  OnUndefined,
+  Authorized,
 } from 'routing-controllers';
 import { ExperimentService } from '../services/ExperimentService';
 import { ExperimentAssignmentService } from '../services/ExperimentAssignmentService';
@@ -27,7 +27,6 @@ import { ExperimentUserAliasesValidator } from './validators/ExperimentUserAlias
 import { Metric } from '../models/Metric';
 import * as express from 'express';
 import { AppRequest } from '../../types';
-import { env } from '../../env';
 import { MonitoredDecisionPointLog } from '../models/MonitoredDecisionPointLog';
 import { Log } from '../models/Log';
 import flatten from 'lodash.flatten';
@@ -1023,15 +1022,9 @@ export class ExperimentClientController {
    *          '500':
    *            description: DEMO mode is disabled
    */
+  @Authorized()
   @Delete('clearDB')
-  @OnUndefined(204)
-  public clearDB(@Req() request: AppRequest) {
-    // if DEMO mode is enabled, then clear the database:
-    if (!env.app.demo) {
-      this.experimentUserService.clearDB(request.logger);
-    } else {
-      request.logger.error({ message: 'DEMO mode is disabled. You cannot clear DB.' });
-    }
-    return;
+  public async clearDB(@Req() request: AppRequest): Promise<string> {
+    return this.experimentUserService.clearDB(request.logger);
   }
 }
diff --git a/backend/packages/Upgrade/src/api/controllers/ExperimentClientController.v4.ts b/backend/packages/Upgrade/src/api/controllers/ExperimentClientController.v4.ts
index b4ba343665..e392e8e5e7 100644
--- a/backend/packages/Upgrade/src/api/controllers/ExperimentClientController.v4.ts
+++ b/backend/packages/Upgrade/src/api/controllers/ExperimentClientController.v4.ts
@@ -7,7 +7,7 @@ import {
   InternalServerError,
   Delete,
   Patch,
-  OnUndefined,
+  Authorized,
 } from 'routing-controllers';
 import { ExperimentService } from '../services/ExperimentService';
 import { ExperimentAssignmentService } from '../services/ExperimentAssignmentService';
@@ -32,7 +32,6 @@ import { ExperimentUserAliasesValidator } from './validators/ExperimentUserAlias
 import { Metric } from '../models/Metric';
 import * as express from 'express';
 import { AppRequest } from '../../types';
-import { env } from '../../env';
 import { MonitoredDecisionPointLog } from '../models/MonitoredDecisionPointLog';
 import { MarkExperimentValidatorv4 } from './validators/MarkExperimentValidator.v4';
 import { Log } from '../models/Log';
@@ -979,15 +978,9 @@ export class ExperimentClientController {
    *          '500':
    *            description: DEMO mode is disabled
    */
+  @Authorized()
   @Delete('clearDB')
-  @OnUndefined(204)
-  public clearDB(@Req() request: AppRequest) {
-    // if DEMO mode is enabled, then clear the database:
-    if (!env.app.demo) {
-      this.experimentUserService.clearDB(request.logger);
-    } else {
-      request.logger.error({ message: 'DEMO mode is disabled. You cannot clear DB.' });
-    }
-    return;
+  public async clearDB(@Req() request: AppRequest): Promise<string> {
+    return this.experimentUserService.clearDB(request.logger);
   }
 }
diff --git a/backend/packages/Upgrade/src/api/controllers/ExperimentClientController.v5.ts b/backend/packages/Upgrade/src/api/controllers/ExperimentClientController.v5.ts
index 58f747b1e6..69caaf5d38 100644
--- a/backend/packages/Upgrade/src/api/controllers/ExperimentClientController.v5.ts
+++ b/backend/packages/Upgrade/src/api/controllers/ExperimentClientController.v5.ts
@@ -7,7 +7,7 @@ import {
   InternalServerError,
   Delete,
   Patch,
-  OnUndefined,
+  Authorized,
 } from 'routing-controllers';
 import { ExperimentService } from '../services/ExperimentService';
 import { ExperimentAssignmentService } from '../services/ExperimentAssignmentService';
@@ -31,7 +31,6 @@ import { MetricService } from '../services/MetricService';
 import { ExperimentUserAliasesValidator } from './validators/ExperimentUserAliasesValidator';
 import * as express from 'express';
 import { AppRequest } from '../../types';
-import { env } from '../../env';
 import { MonitoredDecisionPointLog } from '../models/MonitoredDecisionPointLog';
 import { MarkExperimentValidatorv5 } from './validators/MarkExperimentValidator.v5';
 import { Log } from '../models/Log';
@@ -888,15 +887,9 @@ export class ExperimentClientController {
    *          '500':
    *            description: DEMO mode is disabled
    */
+  @Authorized()
   @Delete('clearDB')
-  @OnUndefined(204)
-  public clearDB(@Req() request: AppRequest) {
-    // if DEMO mode is enabled, then clear the database:
-    if (!env.app.demo) {
-      this.experimentUserService.clearDB(request.logger);
-    } else {
-      request.logger.error({ message: 'DEMO mode is disabled. You cannot clear DB.' });
-    }
-    return;
+  public async clearDB(@Req() request: AppRequest): Promise<string> {
+    return this.experimentUserService.clearDB(request.logger);
   }
 }
diff --git a/backend/packages/Upgrade/src/api/services/ExperimentUserService.ts b/backend/packages/Upgrade/src/api/services/ExperimentUserService.ts
index db63bf8ea7..9b56de00d1 100644
--- a/backend/packages/Upgrade/src/api/services/ExperimentUserService.ts
+++ b/backend/packages/Upgrade/src/api/services/ExperimentUserService.ts
@@ -12,6 +12,7 @@ import { GroupExclusionRepository } from '../repositories/GroupExclusionReposito
 import { Experiment } from '../models/Experiment';
 import isEqual from 'lodash/isEqual';
 import { RequestedExperimentUser } from '../controllers/validators/ExperimentUserValidator';
+import { env } from '../../env';
 
 @Service()
 export class ExperimentUserService {
@@ -345,10 +346,16 @@ export class ExperimentUserService {
     }
   }
 
-  public async clearDB(logger: UpgradeLogger): Promise<void> {
+  public async clearDB(logger: UpgradeLogger): Promise<string> {
+    if (!env.app.demo) {
+      return 'DEMO mode is disabled. You cannot clear DB.';
+    }
+
     await getConnection().transaction(async (transactionalEntityManager) => {
       await this.experimentRepository.clearDB(transactionalEntityManager, logger);
     });
+
+    return 'DB truncate successful';
   }
 
   /**