diff --git a/DESCRIPTION b/DESCRIPTION
index 93220e9b3..3ff5bdc60 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,6 +1,6 @@
 Package: aNCA
 Title: (Pre-)Clinical NCA in a Dynamic Shiny App
-Version: 0.1.0.9175
+Version: 0.1.0.9176
 Authors@R: c(
     person("Ercan", "Suekuer", email = "ercan.suekuer@roche.com", role = "aut",
            comment = c(ORCID = "0009-0001-1626-1526")),
diff --git a/NEWS.md b/NEWS.md
index 9ac7adfd1..e2d4f1520 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -94,6 +94,7 @@
 * NCA results flagging correctly distinguishes missing vs not-requested parameters (#934)
 * Custom units table join uses correct keys instead of hardcoded columns (#1159)
 * "Summarise by" selector in Matrix Ratios fixed (input ID mismatch) (#1198)
+* `export_cdisc()` now includes `ATPTREF` and `ROUTE` columns in ADPP output (#1276)
 
 ### Settings & Upload
 * SASS compilation moved from runtime to build-time script, fixing startup crashes on read-only deployments (#1107)
diff --git a/R/data.R b/R/data.R
index 12408448c..a78a5ba26 100644
--- a/R/data.R
+++ b/R/data.R
@@ -39,7 +39,7 @@
 #'
 #' A dataset containing pharmacokinetic variable specifications.
 #'
-#' @format A data frame with 359 rows and 19 variables:
+#' @format A data frame with 363 rows and 19 variables:
 #' \describe{
 #'   \item{Dataset}{Character. Indicates the dataset the variable belongs to (PP, ADNCA, ADPP).}
 #'   \item{Order}{Numeric. Variable order within its domain, based on Role, Core and Variable}
diff --git a/data-raw/metadata_nca_variables.csv b/data-raw/metadata_nca_variables.csv
index 71b080203..e010349bf 100644
--- a/data-raw/metadata_nca_variables.csv
+++ b/data-raw/metadata_nca_variables.csv
@@ -361,3 +361,5 @@ ADNCA,264,PKSUM1F,PK Summary Exclusion Flag 1,text,Record Qualifier,Perm,FALSE,F
 ADNCA,265,PKSUM1FN,PK Summary Exclusion Flag 1 (N),integer,Record Qualifier,Perm,FALSE,FALSE,12,,FALSE,,FALSE,,,,NA,FALSE
 ADPP,193,PPSUMFL,PP Summary Exclusion Flag,text,Record Qualifier,Perm,FALSE,FALSE,1,,FALSE,,FALSE,,,,NA,FALSE
 ADPP,194,PPSUMRSN,PP Summary Exclusion Reason,text,Record Qualifier,Perm,FALSE,FALSE,200,,FALSE,,FALSE,,,,NA,FALSE
+ADPP,229,ATPTREF,Analysis Timepoint Reference,text,Timing,Perm,FALSE,FALSE,200,,FALSE,,FALSE,,,,NA,FALSE
+ADPP,88,ROUTE,Route of Administration,text,Topic,Perm,FALSE,FALSE,40,C66729,FALSE,,FALSE,,,,NA,FALSE
diff --git a/data/metadata_nca_variables.rda b/data/metadata_nca_variables.rda
index b0677ea7d..3551d8358 100644
Binary files a/data/metadata_nca_variables.rda and b/data/metadata_nca_variables.rda differ
diff --git a/man/metadata_nca_variables.Rd b/man/metadata_nca_variables.Rd
index a634fd13c..a438ace66 100644
--- a/man/metadata_nca_variables.Rd
+++ b/man/metadata_nca_variables.Rd
@@ -5,7 +5,7 @@
 \alias{metadata_nca_variables}
 \title{metadata_nca_variables}
 \format{
-A data frame with 359 rows and 19 variables:
+A data frame with 363 rows and 19 variables:
 \describe{
 \item{Dataset}{Character. Indicates the dataset the variable belongs to (PP, ADNCA, ADPP).}
 \item{Order}{Numeric. Variable order within its domain, based on Role, Core and Variable}
diff --git a/tests/testthat/test-export_cdisc.R b/tests/testthat/test-export_cdisc.R
index 0b4f7907e..ca97b73e2 100644
--- a/tests/testthat/test-export_cdisc.R
+++ b/tests/testthat/test-export_cdisc.R
@@ -969,4 +969,10 @@ describe("export_cdisc: flag columns do not leak to other outputs", {
     crit_cols <- grep("^CRIT|PPSUMFL|PPSUMRSN", names(pp), value = TRUE)
     expect_length(crit_cols, 0)
   })
+
+  it("includes ATPTREF and ROUTE in ADPP when present in source data (#1276)", {
+    result <- export_cdisc(test_pknca_res)
+    expect_true("ATPTREF" %in% names(result$adpp))
+    expect_true("ROUTE" %in% names(result$adpp))
+  })
 })