STUDY DESIGN1*

Graphic depicting the interchangeability study design

Study Design1

  • Multicenter, randomized, double-blind, parallel‐group, phase 3 study evaluating the pharmacokinetics, efficacy, safety, and immunogenicity of SIMLANDI versus Humira in 567 patients with moderate to severe chronic plaque psoriasis
  • Following 12-week open-label lead-in period in which all participants received Humira, PASI ≥75 responders were randomized 1:1 to receive SIMLANDI alternating with Humira (switching arm) or Humira only (nonswitching arm) (n=550)
  • At Week 28, participants who were PASI ≥50 responders could opt in to open-label extension phase to receive SIMLANDI up to Week 50 (n=525), with end-of-study follow-up at Week 52

PRIMARY ENDPOINTS1

  • Area under the concentration–time curve over the dosing interval from Weeks 26-28
  • Maximum concentration over the dosing interval from Weeks 26-28

SECONDARY ENDPOINTS1

  • PASI and DLQI score improvement from Weeks 1-28 and sPGA responses from Weeks 12-28
  • Included analysis of incidence, type, and severity of AEs (including adverse drug reactions), injection-site reactions,
    ADAs, physical examination, and laboratory parameters through Week 28 and during optional extension phase (Weeks 28-52)

ADA=antidrug antibody; AE=adverse event; DLQI=Dermatology Life Quality Index; PASI=Psoriasis Area and Severity Index; PK=pharmacokinetics;
sPGA=static Physician's Global Assessment.

*Study used EU-approved Humira.

Review pharmacokinetics
results from this study

SIMLANDI and Humira had similar pharmacokinetic profiles1

Pharmacokinetics from Weeks 26-28*

Chart showing pharmacokinetics results from the interchangeability study
  • The mean concentration–time profiles for the switching and nonswitching arms were similar
  • Maximum concentration over the dosing interval from Weeks 26-28 was comparable

*Study used EU-approved Humira.

See efficacy results
from this study

PASI, DLQI, and sPGA responses were similar for SIMLANDI and Humira1,2

PASI efficacy results*

Chart showing PASI results from the interchangeability study

DLQI efficacy results*

Chart showing DLQI results from the interchangeability study

sPGA efficacy results*

Chart showing sPGA results from the interchangeability study]

DLQI=Dermatology Life Quality Index; PASI=Psoriasis Area and Severity Index; sPGA=static Physician's Global Assessment.

*Study used EU-approved Humira.

Review safety results
from this study

Safety results in patients switched between Humira and SIMLANDI supported interchangeability1,2

TEAEs IN ≥1% OF PATIENTS IN ANY TREATMENT GROUP*

Stage 2 (Weeks 12-28) Stage 3 (Weeks 28-52)
System organ class preferred term SIMLANDI/Humira/
SIMLANDI (n=277)

n (%)
Humira (n=273)
n (%)
SIMLANDI (n=525)
n (%)
Any TEAE 86 (31.0) 90 (33.0) 123 (23.4)
Blood and lymphatic system disorders 12 (4.3) 15 (5.5) 9 (1.7)
Leukopenia 2 (0.7) 3 (1.1)
Neutropenia 8 (2.9) 12 (4.4) 7 (1.3)
General disorders and administration-site conditions 12 (4.3) 17 (6.2) 16 (3.0)
Influenza-like illness 3 (1.1) 1 (0.4)
Injection-site reaction 7 (2.5) 15 (5.5) 14 (2.7)
Infections and infestations 28 (10.1) 19 (7.0) 32 (6.1)
COVID-19 9 (3.2) 10 (3.7) 7 (1.3)
Nasopharyngitis 6 (2.2) 4 (1.5)
Urinary tract infection 5 (1.8) 1 (0.4)
Investigations 38 (13.7) 25 (9.2) 43 (8.2)
Alanine aminotransferase increased 13 (4.7) 7 (2.6) 13 (2.5)
Aspartate aminotransferase increased 4 (1.4) 4 (1.5) 6 (1.1)
Blood creatine phosphokinase increased 11 (4.0) 3 (1.1) 6 (1.1)
Blood triglycerides increased 3 (1.1) 1 (0.4)
Gamma-glutamyl transferase increased 5 (1.8) 7 (2.6)
Hepatic enzyme increased 3 (1.1) 2 (0.7)
Neutrophil count decreased 3 (1.1) 3 (1.1)
Metabolism and nutrition disorders 7 (2.5) 12 (4.4) 13 (2.5)
Hyperglycemia 1 (0.4) 4 (1.5)
Hypertriglyceridemia 5 (1.8) 5 (1.8) 6 (1.1)
Nervous system disorders 1 (0.4) 5 (1.8) 8 (1.5)
Headache 1 (0.4) 5 (1.8) 7 (1.3)
Skin and subcutaneous tissue disorders 3 (1.1) 12 (4.4) 12 (2.3)
Alopecia 0 3 (1.1)
Psoriasis* 0 6 (2.2) 7 (1.3)

*Preferred term “Psoriasis” was used for all AEs that presented as worsening on study indication (moderate to severe chronic plaque psoriasis).

  • The AE profiles of the switching and nonswitching arms were comparable
  • Overall, there were no notable differences in severe TEAEs between treatment groups

AE=adverse event; TEAE=treatment-emergent adverse event.

*Study used EU-approved Humira.

See immunogenicity results
from this study

Immunogenicity was comparable between SIMLANDI and Humira out to 52 weeks2

Immunogenicity results*

Chart showing immunogenicity results from the interchangeability study
  • There were no clinically meaningful differences between the immunogenicity assessments of switching between SIMLANDI and Humira and using Humira only

ADA=antidrug antibody.

*Study used EU-approved Humira.

Explore the biosimilarity
study for SIMLANDI

References:

1. Feldman SR, Kay R, Reznichenko N, et al. Assessing the interchangeability of AVT02 and Humira® in participants with moderate-to-severe chronic plaque psoriasis: pharmacokinetics, efficacy, safety, and immunogenicity results from a multicenter, double-blind, randomized, parallel-group study. BioDrugs. 2023;37(4):551-567. 2. Feldman SR, Kay R, Reznichenko N, et al. Assessing the interchangeability of AVT02 and Humira® in participants with moderate-to-severe chronic plaque psoriasis: pharmacokinetics, efficacy, safety, and immunogenicity results from a multicenter, double-blind, randomized, parallel-group study [supplementary information]. BioDrugs. 2023;37(4):551-567. Accessed February 1, 2024. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10197027/# 2. Data on file. Parsippany, NJ. Teva Pharmaceuticals.