STUDY DESIGN
The NEURO-TTRansform trial studied the efficacy and safety of WAINUA in adults with hATTR-PN1,2

A Phase 3, randomized, open-label, externally controlled, multicenter study1-5
All patients received supplemental doses of the recommended daily allowance of vitamin A.
The external placebo control from NEURO-TTR was appropriate because of similar eligibility criteria and endpoints1,3,6
*Patients included in NEURO-TTRansform were 18 to 82 years of age, and had a confirmed diagnosis of hATTR-PN as defined by all of the following: Stage 1 (ambulatory without assistance) or Stage 2 (ambulatory with assistance) familial amyloid polyneuropathy or Coutinho stage; documented mutation of the TTR gene; and signs and symptoms consistent with hATTR-PN, including NIS ≥10 and ≤130. Patients must have discontinued active treatment with any other approved drug for hATTR 2 weeks prior to study.2,3
†The inotersen reference group was intended to confirm sufficiently comparable disease progression and treatment response patterns between NEURO-TTR and NEURO-TTRansform trials.3
‡All endpoints were compared with the placebo arm of the earlier NEURO-TTR trial (NCT01737398).1,2,6
§The final analysis endpoints were distributed over 2 visits (Week 65 and Week 66), as prespecified in the protocol.3
- Week 35
- Week 66
- Week 85
- Week 162
WEEK 35 INTERIM ANALYSIS EFFICACY ENDPOINTS1-3
Co-primary Endpoints:
SERUM TTR
% CHANGE FROM BASELINE vs PLACEBO AT WEEK 35
mNIS+7
CHANGE FROM BASELINE
vs PLACEBO AT WEEK 35
Key Secondary Endpoint:
NORFOLK QoL-DN
CHANGE FROM BASELINE vs PLACEBO AT WEEK 35
WEEK 66 FINAL ANALYSIS EFFICACY ENDPOINTS2,3
Co-primary Endpoints:
SERUM TTR
% CHANGE FROM BASELINE
vs PLACEBO AT WEEK 65
mNIS+7
CHANGE FROM BASELINE
vs PLACEBO AT WEEK 66
NORFOLK QoL-DN
CHANGE FROM BASELINE
vs PLACEBO AT WEEK 66
Key Secondary Endpoint:
mBMI
CHANGE FROM BASELINE
vs PLACEBO AT WEEK 65
WEEK 85 EOT ANALYSIS POST HOC AND EXPLORATORY ENDPOINTS2,3
Post Hoc Endpoint:
SERUM TTR
% CHANGE FROM
BASELINE AT WEEK 85
Exploratory Endpoints:
mNIS+7
CHANGE FROM BASELINE
AT WEEK 85
NORFOLK QoL-DN
CHANGE FROM BASELINE
AT WEEK 85
COMPASS-31
CHANGE FROM BASELINE
AT WEEK 81
WEEK 162 EXTENSION INTERIM ANALYSIS EXPLORATORY ENDPOINTS4
Exploratory Endpoints:
SERUM TTR
MEAN % CHANGE FROM INDEX STUDY BASELINE
NIS
MEAN CHANGE FROM INDEX STUDY BASELINE
NORFOLK QoL-DN
MEAN CHANGE FROM INDEX STUDY BASELINE
mBMI
MEAN (SEM) CHANGE IN mBMI FROM INDEX STUDY BASELINE
Discover the efficacy of WAINUA
Explore the safety profile of WAINUA
FOOTNOTES AND ABBREVIATIONS
COMPASS-31, Composite Autonomic Symptom Score-31; EOT, end of treatment; hATTR, hereditary transthyretin-mediated amyloidosis; hATTR-PN, polyneuropathy of hereditary transthyretin-mediated amyloidosis; mBMI, modified body mass index; mNIS+7, modified Neuropathy Impairment Score +7; NIS, Neuropathy Impairment Score; Norfolk QoL-DN, Norfolk Quality of Life-Diabetic Neuropathy; Q4W, every 4 weeks; QW, every week; SC, subcutaneous; TTR, transthyretin.
REFERENCES
- 1. WAINUA® (eplontersen) [prescribing information]. Wilmington, DE: AstraZeneca Pharmaceuticals LP; 2025.
- 2. Coelho T, Ando Y, Benson MD, et al. Design and rationale of the global phase 3 NEURO-TTRansform study of antisense oligonucleotide AKCEA-TTR-LRx (ION-682884-CS3) in hereditary transthyretin-mediated amyloid polyneuropathy. Neurol Ther. 2021;10(1):375-389.
- 3. Coelho T, Marques W Jr, Dasgupta NR, et al. Eplontersen for hereditary transthyretin amyloidosis with polyneuropathy [article and supplementary online content]. JAMA. 2023;330(15):1448-1458.
- 4. Berk J, Coelho T, Conceição I, et al. Long-term efficacy and safety of eplontersen in patients with hereditary transthyretin amyloidosis with polyneuropathy: initial report from the open-label extension of the NEURO-TTRansform study. Presented at: 5th International ATTR Amyloidosis Meeting 2025; September 25-26, 2025; Baveno, Italy.
- 5. Data on File, REF-297876, AZPLP.
- 6. Benson MD, Waddington-Cruz M, Berk JL, et al. Inotersen treatment for patients with hereditary transthyretin amyloidosis. N Engl J Med. 2018;379(1):22-31.


