How to write a regular expression in js to replace multiple matching substrings at the end of a string

input:
"aaaaddabcabcabc"

use regular to replace the ending n "abc" with"
output:
"aaaadd"

the following can only replace the last substring:

nt
n

"\n\tqwe
\n\t<br />\n
qwe\n
\n\n\t<br />\n
\n\n\t<br />\n
\n\n\t<br />\n
\n\n\t<br />\n
\n\n\t<br />\n
\n\n\t<br />\n"
      .replace(/(\n\t<br \/>\n<\/p>)*$/g,"");

Javascript regular-expression java

Mar.24,2021

'aaaaddabcabcabc'.replace(/(abc)*$/g,''); //"aaaadd"

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