diff --git a/book/listings/pharmacokinetic/adal01.qmd b/book/listings/pharmacokinetic/adal01.qmd
index 19660293f8..b4186ef4b4 100644
--- a/book/listings/pharmacokinetic/adal01.qmd
+++ b/book/listings/pharmacokinetic/adal01.qmd
@@ -55,15 +55,6 @@ adab_f1 <- adab_f %>%
   select(USUBJID, VISIT, NFRLT, ISTPT, AVAL_pk, R1800000, R1800001, RESULT1, RESULT2, ADASTAT1, ADASTAT2) %>% 
   mutate(ADA = R1800000, NAB = R1800001) %>% select(-R1800000, -R1800001)
 
-# %>%
-#   rename(
-#     RES_ADA = `ADA interpreted per sample result`,
-#     TES_ADA = `Treatment Emergent - Positive`,
-#     TU_ADA = `Antibody titer units`,
-#     RES_NAB = `NAB interpreted per sample result`,
-#     TES_NAB = `Treatment Emergent - Positive, Neutralizing Antibody`,
-#     TU_NAB = `Neutralizing Antibody titer units`
-#   )
 
 # Find subject level ADA status
 adab_s <- adab_f1 %>% select(USUBJID, ADASTAT1, ADASTAT2) %>% filter(!is.na(ADASTAT1), !is.na(ADASTAT2))