The ELATIVE® Phase 3 Trial
ELATIVE was a double-blind, randomized, placebo-controlled study to evaluate the efficacy and safety of IQIRVO in patients with PBC and inadequate response or intolerance to UDCA.1
Placebo + UDCA referred to as “UDCA alone.”
- IQIRVO was tested in combination with UDCA: 95% (153/161) of patients were receiving concurrent UDCA therapy1
- ULN for ALP was defined as 104 U/L for women and 129 U/L for men1
There were no clinically relevant imbalances in baseline characteristics between IQIRVO and placebo treatment groups.3
- 96% of patients in the study were female
- Mean (SD) baseline ALP was 321.3 (±121.9) U/L in patients taking IQIRVO and 323.1 (±198.6) U/L in patients taking UDCA alone
- Mean (SD) baseline total bilirubin was 0.57 (±0.30) mg/dL in patients taking IQIRVO and 0.55 (±0.29) mg/dL in patients taking UDCA alone
- Mean liver stiffness was 9.9 kPA in patients taking IQIRVO and 10.7 kPA in patients taking UDCA alone
Approximately 40% of patients had ALP >3 x ULN at baseline and ~35% started the trial with advanced disease3,a
13x more patients achieved biochemical response vs UDCA alone1
Robust treatment response in 51% of patients receiving IQIRVO at week 52 vs 4% on UDCA alone (P<0.0001) (95% CI: 32% to 57%)1
Biochemical response at 52 weeks2:
ALP <1.67 x ULN
ALP decrease ≥15% from baseline
Total bilirubin ≤ ULN
Biochemical response at week 521,b
Redefine response with the IQIRVO Effect:
13x more patients achieving biochemical response demonstrates a 47% treatment difference between IQIRVO and UDCA alone1
Helen, age 42
Disease history
- 24 months since diagnosis
- Treated with UDCA (900 mg daily) for 24 months
- Current ALP 218 U/L (2.1 x ULN) vs 353 U/L (3.4 x ULN) at diagnosis4
- 220 U/L ALP at 6-month marker vs 240 U/L at 12 months after starting therapy
- Current bilirubin 0.56 mg/dL (normal) vs 0.56 mg/dL (normal) at diagnosis5
Risk factors for progression
- Inadequate response to treatment6
- Age <45 at diagnosis6,7
ALP levels
With IQIRVO, 15% of patients were able to achieve ALP normalization, which is associated with improved outcomes in PBC1,8
71% of patients in a subgroup analysis saw biochemical response3
Biochemical response at week 52 in patients with ALP ≤3 x ULN at baseline3
ALP ≤3 x ULN
71% (n=46/65) of patients
with baseline ALP ≤3 x ULN saw biochemical response3
ALP >3 x ULN
21% (n=9/43) of patients
with baseline ALP >3 x ULN saw biochemical response3
Marie, age 57
Disease history
- 5 years since diagnosis
- Second-line treatment added 6 months ago, in combination with UDCA (prescribed at diagnosis)
- 5 years (UDCA), 1.5 years (UDCA + obeticholic acid)
- Recently reported symptoms of increased pruritus
- Current ALP of 239 U/L (2.3 x ULN) vs 187 U/L (1.8 x ULN) at diagnosis4
IQIRVO could help patients like Marie achieve biochemical response with an established safety profile1
Review safety and tolerability findings for IQIRVO.
IQIRVO decreased ALP quickly1,2
Rapid ALP reduction in just 4 weeks— an effect sustained through 52 weeks1,b
Mean ALP reduction from baseline of 117 U/L with IQIRVO.3
ALP normalization was achieved with IQIRVO1
ALP normalization at week 521
Data on reduction of pruritus with IQIRVO2
IQIRVO was studied in patients with moderate to severe pruritus, defined as a PBC WI-NRS score ≥4. The change in pruritus from baseline through weeks 24 and 52 were secondary endpoints of the study2
A trend toward improving pruritus was observed with IQIRVO, as measured by WI-NRS (LS mean change from baseline -1.93 vs -1.15 with UDCA alone; 95% CI: -2.0 to 0.4). Results with IQIRVO were not statistically significant, and therefore, these results are descriptive only.2
Pruritus impact vs UDCA alone was measured by PBC-40 and 5-D itch scales2,b
PBC-40 itch domain at week 522
The PBC-40 is a patient-derived measure validated for PBC, covering 6 domains: fatigue, pruritus, cognitive, emotional, social, and other symptoms.9
A 0.5-point change per question in the itch domain was a threshold for response, with ≥1.5 change being clinically meaningful.9,11
5-D itch score at week 522
The 5-D itch scale is a patient-reported measure of the degree, duration, direction, disability, and distribution of pruritus.10
aAdvanced disease stage defined as liver stiffness at baseline >10 kPa and/or bridging fibrosis or cirrhosis on histology.2,3
bSix patients in the IQIRVO group took IQIRVO alone, while 2 patients in the UDCA group took placebo alone.1
ALP=alkaline phosphatase; CI=confidence interval; LS=least squares; OLE=open-label extension; PBC=primary biliary cholangitis; QoL=quality of life; SD=standard deviation; UDCA=ursodeoxycholic acid; ULN=upper limit of normal; WI-NRS=worst itch numeric rating scale.
References: 1. IQIRVO [package insert]. Ipsen Biopharmaceuticals, Inc. Cambridge, MA. 2. Kowdley KV, Bowlus CL, Levy C, et al; ELATIVE Study Investigators’ Group. Efficacy and safety of elafibranor in primary biliary cholangitis. N Engl J Med. 2024;390(9):795-805, suppl. 3. Data on file. Ipsen Biopharmaceuticals, Inc. 4. ALKI. Mayo Clinic Laboratories. Accessed February 24, 2024. https://www.mayocliniclabs.com/test-catalog/overview/89503#Clinical-and-Interpretive. 5. BILI3. Mayo Clinic Laboratories. Accessed February 24, 2024. https://www.mayocliniclabs.com/test-catalog/overview/8452#Clinical-and-Interpretive. 6. Hirschfield GM, Chazouillères O, Cortez-Pinto H, et al. A consensus integrated care pathway for patients with primary biliary cholangitis: a guideline-based approach to clinical care of patients. Expert Rev Gastroenterol Hepatol. 2021;15(8):929-939. 7. European Association for the Study of the Liver. EASL Clinical Practice Guidelines: the diagnosis and management of patients with primary biliary cholangitis. J Hepatol. 2017;67(1):145-172. 8. Murillo Perez CF, Harms MH, Lindor KD, et al; Global PBC Study Group. Goals of treatment for improved survival in primary biliary cholangitis: treatment target should be bilirubin within the normal range and normalization of alkaline phosphatase. Am J Gastroenterol. 2020;115(7):1066-1074. 9. Jacoby A, Rannard A, Buck D, et al. Development, validation, and evaluation of the PBC-40, a disease specific health related quality of life measure for primary biliary cirrhosis. Gut. 2005;54(11):1622-1629. 10. Elman S, Hynan LS, Gabriel V, et al. The 5-D itch scale: a new measure of pruritus. Br J Dermatol. 2010;162(3):587-593. 11. Jones D, Carbone M, Invernizzi P, et al. Impact of setanaxib on quality of life outcomes in primary biliary cholangitis in a phase 2 randomized controlled trial. Hepatol Commun. 2023;7(3):e0057.