diff --git a/R/data-gather-clean.R b/R/data-gather-clean.R
index a87f5c6..463fda8 100644
--- a/R/data-gather-clean.R
+++ b/R/data-gather-clean.R
@@ -37,8 +37,8 @@ get_submissions <- function(syn, group, statuses) {
 #' Process submissions
 #'
 #' Process JSON files into a single table containing all submissions. Cleans up
-#' the data to provide user-friendly variable and section names, and remove the
-#' `metadata` section.
+#' the data to provide user-friendly variable and section names, removes the
+#' `metadata` section, and removes any fields with the hidden_field key (see ALZ-283).
 #'
 #' @param submissions A named list of paths to JSON files, i.e. the output of
 #'   [get_submissions()]. The name of each element should be its form data ID.
@@ -77,7 +77,8 @@ process_submissions <- function(submissions, lookup_table, complete = TRUE) {
   all_subs <- dplyr::filter(all_subs, .data$section != "metadata") %>%
     ## Fix display of some responses
     change_logical_responses() %>%
-    therapeutic_approach_response()
+    therapeutic_approach_response() %>%
+    remove_hidden_fields()
   
   all_subs
 }
@@ -307,6 +308,16 @@ therapeutic_approach_response <- function(data) {
   )
 }
 
+#' ALZ-283: Remove hidden fields so they aren't displayed
+#'
+#' @inheritParams append_exp_nums
+remove_hidden_fields <- function(data) {
+  dplyr::filter(
+    data,
+    variable != "hidden_field"
+  )
+}
+
 #' Combine multiple routes into one comma-separated response
 #'
 #' @param data List containing route data
diff --git a/data-raw/stopad_lookup_table.csv b/data-raw/stopad_lookup_table.csv
index 866f298..0352879 100644
--- a/data-raw/stopad_lookup_table.csv
+++ b/data-raw/stopad_lookup_table.csv
@@ -62,6 +62,7 @@ In Vivo Data,Dosing Regimen,in_vivo_data,dose_regimen
 PK In Silico,Drug Partition Coefficient (LogP),pk_in_silico,partition_coefficient
 PK In Silico,Acid Dissociation Constant (pKA),pk_in_silico,dissociation_constant
 PK In Silico,Molecular Weight (g/mol),pk_in_silico,molecular_weight
+PK In Vitro,Ignore me,pk_in_vitro,hidden_field
 PK In Vitro,Cell Permeablity Assay,pk_in_vitro,assay_description
 PK In Vitro,Permeability,pk_in_vitro,permeability
 PK In Vitro,Drug Lipophilicity Coefficient (LogD),pk_in_vitro,lipophilicity