diff --git a/src/core/ddsc/src/dds_psmx.c b/src/core/ddsc/src/dds_psmx.c
index 94049c6940..0953c04b8c 100644
--- a/src/core/ddsc/src/dds_psmx.c
+++ b/src/core/ddsc/src/dds_psmx.c
@@ -194,7 +194,12 @@ dds_return_t dds_psmx_topic_cleanup_generic (struct dds_psmx_topic *psmx_topic)
 dds_loaned_sample_t * dds_psmx_endpoint_request_loan (struct dds_psmx_endpoint *psmx_endpoint, uint32_t sz)
 {
   assert (psmx_endpoint->ops.request_loan);
-  return psmx_endpoint->ops.request_loan (psmx_endpoint, sz);
+  dds_loaned_sample_t *loaned_sample = psmx_endpoint->ops.request_loan (psmx_endpoint, sz);
+  loaned_sample->metadata->sample_state = DDS_LOANED_SAMPLE_STATE_UNITIALIZED;
+  loaned_sample->metadata->sample_size = sz;
+  loaned_sample->metadata->instance_id = psmx_endpoint->psmx_topic->psmx_instance->instance_id;
+  loaned_sample->metadata->data_type = psmx_endpoint->psmx_topic->data_type;
+  return loaned_sample;
 }
 
 static dds_psmx_instance_id_t get_psmx_instance_id (const struct ddsi_domaingv * gv, const char *config_name)
diff --git a/src/core/ddsc/src/dds_write.c b/src/core/ddsc/src/dds_write.c
index edc4bbb854..d23b84fd23 100644
--- a/src/core/ddsc/src/dds_write.c
+++ b/src/core/ddsc/src/dds_write.c
@@ -319,9 +319,6 @@ static dds_return_t dds_writecdr_impl_ensureloan (struct dds_writer *wr, struct
     ddsi_serdata_to_ser (&din->a, 4, sersize - 4, loan->sample_ptr);
   struct dds_psmx_metadata * const md = loan->metadata;
   md->sample_state = (din->a.kind == SDK_KEY) ? DDS_LOANED_SAMPLE_STATE_SERIALIZED_KEY : DDS_LOANED_SAMPLE_STATE_SERIALIZED_DATA;
-  md->data_type = wr->m_endpoint.psmx_endpoints.endpoints[0]->psmx_topic->data_type;
-  md->instance_id = wr->m_endpoint.psmx_endpoints.endpoints[0]->psmx_topic->psmx_instance->instance_id;
-  md->sample_size = sersize - 4;
   memcpy (&md->guid, &wr->m_entity.m_guid, sizeof (md->guid));
   md->timestamp = din->a.timestamp.v;
   md->statusinfo = din->a.statusinfo;
diff --git a/src/core/ddsc/tests/psmx_cdds_impl.c b/src/core/ddsc/tests/psmx_cdds_impl.c
index 4bbca5410f..6a74346f9f 100644
--- a/src/core/ddsc/tests/psmx_cdds_impl.c
+++ b/src/core/ddsc/tests/psmx_cdds_impl.c
@@ -303,10 +303,6 @@ static dds_loaned_sample_t * cdds_psmx_ep_request_loan (struct dds_psmx_endpoint
     ls->loan_origin.origin_kind = DDS_LOAN_ORIGIN_KIND_PSMX;
     ls->loan_origin.psmx_endpoint = (struct dds_psmx_endpoint *) cep;
     ls->metadata = dds_alloc (sizeof (*ls->metadata));
-    ls->metadata->sample_state = DDS_LOANED_SAMPLE_STATE_UNITIALIZED;
-    ls->metadata->sample_size = size_requested;
-    ls->metadata->instance_id = cep->c.psmx_topic->psmx_instance->instance_id;
-    ls->metadata->data_type = cep->c.psmx_topic->data_type;
     ls->sample_ptr = dds_alloc (sz);
     memset (ls->sample_ptr, 0, sz);
     ddsrt_atomic_st32 (&ls->refc, 1);
diff --git a/src/psmx_iox/src/psmx_iox_impl.cpp b/src/psmx_iox/src/psmx_iox_impl.cpp
index bffab365d6..1d87dc938a 100644
--- a/src/psmx_iox/src/psmx_iox_impl.cpp
+++ b/src/psmx_iox/src/psmx_iox_impl.cpp
@@ -357,11 +357,11 @@ iox_psmx_endpoint::~iox_psmx_endpoint()
 
 struct iox_loaned_sample : public dds_loaned_sample_t
 {
-  iox_loaned_sample(struct dds_psmx_endpoint * origin, uint32_t sz, const void * ptr, dds_loaned_sample_state_t st);
+  iox_loaned_sample(struct dds_psmx_endpoint * origin, const void * iox_payload);
   ~iox_loaned_sample();
 };
 
-iox_loaned_sample::iox_loaned_sample(struct dds_psmx_endpoint * origin, uint32_t sz, const void * iox_payload, dds_loaned_sample_state_t st):
+iox_loaned_sample::iox_loaned_sample(struct dds_psmx_endpoint * origin, const void * iox_payload):
   dds_loaned_sample_t {
     .ops = ls_ops,
     .loan_origin = { .origin_kind = DDS_LOAN_ORIGIN_KIND_PSMX, .psmx_endpoint = origin },
@@ -370,10 +370,6 @@ iox_loaned_sample::iox_loaned_sample(struct dds_psmx_endpoint * origin, uint32_t
     .refc = { .v = 1 }
   }
 {
-  metadata->sample_state = st;
-  metadata->data_type = origin->psmx_topic->data_type;
-  metadata->instance_id = origin->psmx_topic->psmx_instance->instance_id;
-  metadata->sample_size = sz;
 }
 
 iox_loaned_sample::~iox_loaned_sample()
@@ -519,7 +515,7 @@ static dds_loaned_sample_t * iox_req_loan(struct dds_psmx_endpoint *psmx_endpoin
     const std::lock_guard<std::mutex> lock(cpp_ep_ptr->lock);
     publisher->loan(size_requested, iox::CHUNK_DEFAULT_USER_PAYLOAD_ALIGNMENT, sizeof(dds_psmx_metadata_t), alignof(dds_psmx_metadata_t))
       .and_then([&](const void* iox_payload) {
-        loaned_sample = new iox_loaned_sample(psmx_endpoint, size_requested, iox_payload, DDS_LOANED_SAMPLE_STATE_UNITIALIZED);
+        loaned_sample = new iox_loaned_sample(psmx_endpoint, iox_payload);
       })
       .or_else([&](auto& error) {
         std::cerr << ERROR_PREFIX "failure getting loan" << iox::popo::asStringLiteral(error) << std::endl;
@@ -570,8 +566,7 @@ static dds_return_t iox_write(struct dds_psmx_endpoint * psmx_endpoint, dds_loan
 
 static dds_loaned_sample_t * incoming_sample_to_loan(iox_psmx_endpoint *psmx_endpoint, const void *iox_payload)
 {
-  auto metadata = static_cast<const dds_psmx_metadata_t *>(iox::mepoo::ChunkHeader::fromUserPayload(iox_payload)->userHeader());
-  return new iox_loaned_sample(psmx_endpoint, metadata->sample_size, iox_payload, metadata->sample_state);
+  return new iox_loaned_sample(psmx_endpoint, iox_payload);
 }
 
 static dds_loaned_sample_t * iox_take(struct dds_psmx_endpoint * psmx_endpoint)