EphemerisXResearch

Complete Response Letters

Akebia Therapeutics, Inc.: vadadustat

What FDA's Complete Response Letters to the company say, in the letters' own words.

Complete Response Letter, Mar 29, 2022

DD-CKD Trial 0016, ESA rescue for worsening anemia was reported in 22% of vadadustat-treated patients compared to 5% of darbepoetin alfa-treated patients.
Complete Response Letter · Mar 29, 2022 · p. 2Open the letter at p. 2 ↗CRL_NDA215192_20220329:p1:s23
DILI can cause acute liver failure, the need for liver transplantation, or death.
Complete Response Letter · Mar 29, 2022 · p. 5Open the letter at p. 5 ↗CRL_NDA215192_20220329:p3:s11
We expect these findings to be adequately mitigated with labeling when vadadustat can be approved, provided there are no concerning gastrointestinal findings in future clinical trials of vadadustat.
Complete Response Letter · Mar 29, 2022 · p. 7Open the letter at p. 7 ↗CRL_NDA215192_20220329:p4:s17

More Complete Response Letters

All companies in the CRL Tracker →

Updated Sep 30, 2026 · built from 283 companies in the EphemerisX knowledge graph. This page is regenerated as companies are added.