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Study to Demonstrate Equivalent Efficacy and to Compare Safety of Biosimilar Adalimumab (GP2017) and Humira

A Randomized, Double-blind, Multicenter Study to Demonstrate Equivalent Efficacy and to Compare Safety and Immunogenicity of a Biosimilar Adalimumab (GP2017) and Humira® in Patients With Moderate to Severe Chronic Plaque-type Psoriasis

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02016105
Acronym
ADACCESS
Enrollment
465
Registered
2013-12-19
Start date
2013-12-31
Completion date
2016-02-29
Last updated
2017-05-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Plaque Type Psoriasis

Keywords

plaque type psoriasis, equivalent efficacy, safety and immunogenicity, GP2017, Humira®

Brief summary

The aim of the study is to demonstrate equivalent efficacy and similarity in the safety profile of GP2017 and Humira® in patients with moderate to severe chronic plaque-type psoriasis.

Detailed description

The aim of this study (Treatment Period 1) was to demonstrate equivalent efficacy, primarily based on the PASI75 response rate at Week 16, and similar safety of the proposed biosimilar GP2017 and Humira in patients with moderate to severe chronic plaque-type psoriasis at the end of Treatment Period 1, after 17 weeks of study treatment. The subsequent Treatment Period 2 (Week 17 to Week 35) and the Extension Period (Week 35 to Week 51) were performed to evaluate long-term effects, including immunogenicity (i.e. ADAs), and the effects of repeated switching between GP2017 and Humira.

Interventions

DRUGGP2017 Adalimumab
DRUGHumira ® Adalimumab

Sponsors

Hexal AG
CollaboratorINDUSTRY
Sandoz
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Men or women at least 18 years of age at time of screening * Chronic plaque-type psoriasis diagnosed for at least 6 months before randomization * Moderate to severe psoriasis as defined at baseline by: * PASI score of 12 or greater * Investigator´s Global Assessment score of 3 or greater (based on a scale of 0 - 4) and, * Body Surface Area affected by plaque-type psoriasis of 10% or greater * Chronic plaque-type psoriasis patients who have previously received phototherapy or systemic psoriasis therapy at least once or who are candidates for such therapies in the opinion of the investigator.

Exclusion criteria

* Forms of psoriasis other than chronic plaque-type * Drug-induced psoriasis * Ongoing use of prohibited psoriasis treatments * Previous exposure to adalimumab * Active ongoing inflammatory diseases other than psoriasis that might confound the evaluation of the benefit of treatment with adalimumab Other In-/

Design outcomes

Primary

MeasureTime frameDescription
PASI 75 Response Rate at Week 16 - GP2017 Adalimumab vs Humira ® AdalimumabAt Week 16 onlyThe primary variable was the PASI75 response rate at Week 16, defined as the proportion of patients achieving a reduction of 75% or more of the PASI score at Week 16 compared with baseline.

Secondary

MeasureTime frameDescription
Mean ATE of Percent Change From Baseline in PASI Score up to Week 16 (ANCOVA)Baseline to Week 16The key secondary efficacy variable was the average treatment effect (ATE) which is the weighted average of % change from baseline in PASI scores between Week 1 and Week 16 (weights based on the time interval between two consecutive visits).
PASI 50, PASI 75, PASI 90 and PASI 100 Response RatesAt Week 17 onlyProportion of patients achieving PASI 50, 75, 90 and 100 at Week 17 (end of Treatment Period 1)
PASI 50, PASI75, PASI 90 and PASI100 Response RatesAt Week 35 onlyProportion of Patients Achieving PASI 50, 75, 90 and 100 at Week 35 (end of Treatment Period 2)
Mean Percent Change From Baseline in PASI Score up to Week 16 (MMRM)Baseline to Week 16The key secondary efficacy variable was the percentage change from baseline in PASI score at each visit up to Week 16.
DLQIAt Week 17 onlyProportion of patients reporting a DLQI of 0 or 1 (no effect at all on patient's life)
ADA Formation Against GP2017 Adalimumab and Humira® Adalimumab From Randomization Until Week 17At Week 17 onlyProportion of patients with at least one confirmed positive anti-drug antibodies (ADA) response to adalimumab from Randomization to Week 17. Patients with ADA positive results at baseline were excluded from subsequent results.
ADA Formation Against GP2017 Adalimumab and Humira® Adalimumab From Randomization Until Week 51At Week 51 onlyProportion of patients with at least one confirmed positive anti-drug antibodies (ADA) response to adalimumab from Randomization to Week 51. Patients with ADA positive results at baseline were excluded from subsequent results.
IGA Response RateAt Week 17 onlyProportion of patients achieving a score of 0 (clear) or 1 (almost clear) or improved by at least 2 points of the IGA scale compared to baseline at Week 17.

Countries

Bulgaria, France, Slovakia, United States

Participant flow

Recruitment details

661 patients were screened. 465 patients were randomized 1:1 into Treatment Period 1 and stratified by region (US/EU), body weight (\<90/≥90 kg) and prior systemic therapy (no/any). In Treatment Period 2 patients were re-randomized 2:1 to either continue originally assigned treatment or switch treatment and were stratified by region only.

Pre-assignment details

Screening lasted for at least 2 weeks and up to 4 weeks. Main inclusion criteria: * Men or women of at least 18 years * Chronic plaque-type psoriasis ≥ 6 months before randomization * Moderate to severe psoriasis : * PASI score ≥ 12 * IGA score ≥3 * BSA affected by plaque-type psoriasis ≥ 10% * No previous exposure to adalimumab

Participants by arm

ArmCount
GP2017 Adalimumab
Solution for subcutaneous (s.c.) injection in pre-filled syringe. Study drug is administered on Day 1 with an intial dose of 80mg followed by 40mg every other week (eow) starting one week after initial dose for the first 17 weeks (Treatment Period 1).
231
Humira ® Adalimumab
Solution for subcutaneous (s.c.) injection in pre-filled syringe. Study drug is administered on Day 1 with an intial dose of 80mg followed by 40mg every other week (eow) starting one week after initial dose for the first 17 weeks (Treatment Period 1).
234
Total465

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005
EXTENSION PERIODAdverse Event002010
EXTENSION PERIODLack of Efficacy001311
EXTENSION PERIODLost to Follow-up000002
EXTENSION PERIODNew therapy for study indication000011
EXTENSION PERIODNon-compliance with study indication000010
EXTENSION PERIODWithdrawal by Subject002222
TREATMENT PERIOD 1Adverse Event350000
TREATMENT PERIOD 1Lack of Efficacy420000
TREATMENT PERIOD 1Lost to Follow-up640000
TREATMENT PERIOD 1Physician Decision020000
TREATMENT PERIOD 1Pregnancy010000
TREATMENT PERIOD 1Protocol Violation280000
TREATMENT PERIOD 1Withdrawal by Subject15110000
TREATMENT PERIOD 2Adverse Event000401
TREATMENT PERIOD 2Death000001
TREATMENT PERIOD 2Lack of Efficacy002632
TREATMENT PERIOD 2Lost to Follow-up001001
TREATMENT PERIOD 2Non compliance study medication000001
TREATMENT PERIOD 2Pregnancy000001
TREATMENT PERIOD 2Withdrawal by Subject003117

Baseline characteristics

CharacteristicGP2017 AdalimumabHumira ® AdalimumabTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
26 Participants26 Participants52 Participants
Age, Categorical
Between 18 and 65 years
205 Participants208 Participants413 Participants
Age, Continuous45.6 years
STANDARD_DEVIATION 14.16
46.9 years
STANDARD_DEVIATION 14.09
46.3 years
STANDARD_DEVIATION 14.12
Region of Enrollment
Europe
43 participants44 participants87 participants
Region of Enrollment
United States
188 participants190 participants378 participants
Sex: Female, Male
Female
89 Participants92 Participants181 Participants
Sex: Female, Male
Male
142 Participants142 Participants284 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 630 / 1270 / 631 / 126
other
Total, other adverse events
40 / 6385 / 12747 / 6384 / 126
serious
Total, serious adverse events
6 / 6310 / 1272 / 634 / 126

Outcome results

Primary

PASI 75 Response Rate at Week 16 - GP2017 Adalimumab vs Humira ® Adalimumab

The primary variable was the PASI75 response rate at Week 16, defined as the proportion of patients achieving a reduction of 75% or more of the PASI score at Week 16 compared with baseline.

Time frame: At Week 16 only

Population: The Per-protocol analysis set (PPS) consists of patients who completed the study up to Week 16 and had no major protocol deviations or additional exclusion criteria up to and including Week 16.

ArmMeasureValue (NUMBER)
GP2017 AdalimumabPASI 75 Response Rate at Week 16 - GP2017 Adalimumab vs Humira ® Adalimumab66.8 percent of participants
Humira ® AdalimumabPASI 75 Response Rate at Week 16 - GP2017 Adalimumab vs Humira ® Adalimumab65.0 percent of participants
95% CI: [-7.46, 11.15]
Secondary

ADA Formation Against GP2017 Adalimumab and Humira® Adalimumab From Randomization Until Week 17

Proportion of patients with at least one confirmed positive anti-drug antibodies (ADA) response to adalimumab from Randomization to Week 17. Patients with ADA positive results at baseline were excluded from subsequent results.

Time frame: At Week 17 only

Population: The Safety analysis set (SAF) includes all patients who received at least one dose of study treatment during Treatment Period 1. Patients were analyzed according to the treatment received.

ArmMeasureValue (NUMBER)
GP2017 AdalimumabADA Formation Against GP2017 Adalimumab and Humira® Adalimumab From Randomization Until Week 1736.8 % patients with at least 1 ADA+ sample
Humira ® AdalimumabADA Formation Against GP2017 Adalimumab and Humira® Adalimumab From Randomization Until Week 1734.1 % patients with at least 1 ADA+ sample
Secondary

ADA Formation Against GP2017 Adalimumab and Humira® Adalimumab From Randomization Until Week 51

Proportion of patients with at least one confirmed positive anti-drug antibodies (ADA) response to adalimumab from Randomization to Week 51. Patients with ADA positive results at baseline were excluded from subsequent results.

Time frame: At Week 51 only

Population: The Safety analysis set (SAF) includes all patients who received at least one dose of study treatment during Treatment Period 1. Patients were analyzed according to the treatment received.

ArmMeasureValue (NUMBER)
GP2017 AdalimumabADA Formation Against GP2017 Adalimumab and Humira® Adalimumab From Randomization Until Week 5139.3 % patients with at least 1 ADA+ sample
Humira ® AdalimumabADA Formation Against GP2017 Adalimumab and Humira® Adalimumab From Randomization Until Week 5145.1 % patients with at least 1 ADA+ sample
GP2017 Adalimumab SwitchedADA Formation Against GP2017 Adalimumab and Humira® Adalimumab From Randomization Until Week 5146.7 % patients with at least 1 ADA+ sample
GP2017 Adalimumab ContinuedADA Formation Against GP2017 Adalimumab and Humira® Adalimumab From Randomization Until Week 5135.8 % patients with at least 1 ADA+ sample
Secondary

DLQI

Proportion of patients reporting a DLQI of 0 or 1 (no effect at all on patient's life)

Time frame: At Week 35 only

ArmMeasureValue (NUMBER)
GP2017 AdalimumabDLQI49.0 % of patients with DLQI of 0 or 1
Humira ® AdalimumabDLQI54.5 % of patients with DLQI of 0 or 1
GP2017 Adalimumab SwitchedDLQI52.9 % of patients with DLQI of 0 or 1
GP2017 Adalimumab ContinuedDLQI55.9 % of patients with DLQI of 0 or 1
Secondary

DLQI

Proportion of patients reporting a DLQI of 0 or 1 (no effect at all on patient's life)

Time frame: At Week 17 only

Population: The Per-protocol analysis set (PPS) consists of patients who completed the study up to Week 16 and had no major protocol deviations or additional exclusion criteria up to and including Week 16.

ArmMeasureValue (NUMBER)
GP2017 AdalimumabDLQI50.5 % of patients with DLQI of 0 or 1
Humira ® AdalimumabDLQI48.4 % of patients with DLQI of 0 or 1
Secondary

DLQI

Proportion of patients reporting a DLQI of 0 or 1 (no effect at all on patient's life)

Time frame: At Week 51 only

ArmMeasureValue (NUMBER)
GP2017 AdalimumabDLQI48.8 % of patients with DLQI of 0 or 1
Humira ® AdalimumabDLQI55.6 % of patients with DLQI of 0 or 1
GP2017 Adalimumab SwitchedDLQI54.2 % of patients with DLQI of 0 or 1
GP2017 Adalimumab ContinuedDLQI59.8 % of patients with DLQI of 0 or 1
Secondary

IGA Response Rate

Proportion of patients achieving a score of 0 (clear) or 1 (almost clear) or improved by at least 2 points of the IGA scale compared to baseline at Week 51

Time frame: At Week 35 only

ArmMeasureValue (NUMBER)
GP2017 AdalimumabIGA Response Rate59.2 percent of participants
Humira ® AdalimumabIGA Response Rate58.2 percent of participants
GP2017 Adalimumab SwitchedIGA Response Rate58.8 percent of participants
GP2017 Adalimumab ContinuedIGA Response Rate58.8 percent of participants
Secondary

IGA Response Rate

Proportion of patients achieving a score of 0 (clear) or 1 (almost clear) or improved by at least 2 points of the IGA scale compared to baseline at Week 17.

Time frame: At Week 17 only

Population: The Per-protocol analysis set (PPS) consists of patients who completed the study up to Week 16 and had no major protocol deviations or additional exclusion criteria up to and including Week 16.

ArmMeasureValue (NUMBER)
GP2017 AdalimumabIGA Response Rate53.6 percent of participants
Humira ® AdalimumabIGA Response Rate53.6 percent of participants
Secondary

IGA Response Rate

Proportion of patients achieving a score of 0 (clear) or 1 (almost clear) or improved by at least 2 points of the IGA scale compared to baseline at Week 51

Time frame: At Week 51 only

ArmMeasureValue (NUMBER)
GP2017 AdalimumabIGA Response Rate46.5 percent of participants
Humira ® AdalimumabIGA Response Rate55.1 percent of participants
GP2017 Adalimumab SwitchedIGA Response Rate58.3 percent of participants
GP2017 Adalimumab ContinuedIGA Response Rate59.8 percent of participants
Secondary

Mean ATE of Percent Change From Baseline in PASI Score up to Week 16 (ANCOVA)

The key secondary efficacy variable was the average treatment effect (ATE) which is the weighted average of % change from baseline in PASI scores between Week 1 and Week 16 (weights based on the time interval between two consecutive visits).

Time frame: Baseline to Week 16

Population: The Per-protocol analysis set (PPS) consists of patients who completed the study up to Week 16 and had no major protocol deviations or additional exclusion criteria up to and including Week 16.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
GP2017 AdalimumabMean ATE of Percent Change From Baseline in PASI Score up to Week 16 (ANCOVA)-59.7 percentage change from baselineStandard Error 1.59
Humira ® AdalimumabMean ATE of Percent Change From Baseline in PASI Score up to Week 16 (ANCOVA)60.8 percentage change from baselineStandard Error 1.61
95% CI: [-2.78, 5.08]
Secondary

Mean Percent Change From Baseline in PASI Score up to Week 16 (MMRM)

The key secondary efficacy variable was the percentage change from baseline in PASI score at each visit up to Week 16.

Time frame: Baseline to Week 16

Population: The Per-protocol analysis set (PPS) consists of patients who completed the study up to Week 16 and had no major protocol deviations or additional exclusion criteria up to and including Week 16.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
GP2017 AdalimumabMean Percent Change From Baseline in PASI Score up to Week 16 (MMRM)-60.7 percentage change from baselineStandard Error 1.54
Humira ® AdalimumabMean Percent Change From Baseline in PASI Score up to Week 16 (MMRM)-61.5 percentage change from baselineStandard Error 1.55
95% CI: [-3.15, 4.84]
Secondary

PASI 50, PASI 75, PASI 90 and PASI 100 Response Rates

Proportion of patients achieving PASI 50, 75, 90 and 100 at Week 17 (end of Treatment Period 1)

Time frame: At Week 17 only

Population: The Per-protocol analysis set (PPS) consists of patients who completed the study up to Week 16 and had no major protocol deviations or additional exclusion criteria up to and including Week 16.

ArmMeasureGroupValue (NUMBER)
GP2017 AdalimumabPASI 50, PASI 75, PASI 90 and PASI 100 Response Rates% of patients achieving PASI50 at Week 1793.2 percent of participants
GP2017 AdalimumabPASI 50, PASI 75, PASI 90 and PASI 100 Response Rates% of patients achieving PASI75 at Week 1771.4 percent of participants
GP2017 AdalimumabPASI 50, PASI 75, PASI 90 and PASI 100 Response Rates% of patients achieving PASI90 at Week 1751.6 percent of participants
GP2017 AdalimumabPASI 50, PASI 75, PASI 90 and PASI 100 Response Rates% of patients achieving PASI100 at Week 1721.9 percent of participants
Humira ® AdalimumabPASI 50, PASI 75, PASI 90 and PASI 100 Response Rates% of patients achieving PASI100 at Week 1716.5 percent of participants
Humira ® AdalimumabPASI 50, PASI 75, PASI 90 and PASI 100 Response Rates% of patients achieving PASI50 at Week 1792.8 percent of participants
Humira ® AdalimumabPASI 50, PASI 75, PASI 90 and PASI 100 Response Rates% of patients achieving PASI90 at Week 1744.8 percent of participants
Humira ® AdalimumabPASI 50, PASI 75, PASI 90 and PASI 100 Response Rates% of patients achieving PASI75 at Week 1768.6 percent of participants
Secondary

PASI 50, PASI75, PASI 90 and PASI100 Response Rates

Proportion of Patients Achieving PASI 50, 75, 90 and 100 at Week 51 (Entire Study)

Time frame: At Week 51 only

ArmMeasureGroupValue (NUMBER)
GP2017 AdalimumabPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI50 at Week 5195.3 percent of participants
GP2017 AdalimumabPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI75 at Week 5176.7 percent of participants
GP2017 AdalimumabPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI90 at Week 5148.8 percent of participants
GP2017 AdalimumabPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI100 at Week 5125.6 percent of participants
Humira ® AdalimumabPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI75 at Week 5179.6 percent of participants
Humira ® AdalimumabPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI90 at Week 5151.0 percent of participants
Humira ® AdalimumabPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI100 at Week 5129.6 percent of participants
Humira ® AdalimumabPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI50 at Week 5193.9 percent of participants
GP2017 Adalimumab SwitchedPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI90 at Week 5160.4 percent of participants
GP2017 Adalimumab SwitchedPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI75 at Week 5175.0 percent of participants
GP2017 Adalimumab SwitchedPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI100 at Week 5131.3 percent of participants
GP2017 Adalimumab SwitchedPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI50 at Week 5187.5 percent of participants
GP2017 Adalimumab ContinuedPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI100 at Week 5135.1 percent of participants
GP2017 Adalimumab ContinuedPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI75 at Week 5184.5 percent of participants
GP2017 Adalimumab ContinuedPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI50 at Week 5195.9 percent of participants
GP2017 Adalimumab ContinuedPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI90 at Week 5162.9 percent of participants
Secondary

PASI 50, PASI75, PASI 90 and PASI100 Response Rates

Proportion of Patients Achieving PASI 50, 75, 90 and 100 at Week 35 (end of Treatment Period 2)

Time frame: At Week 35 only

ArmMeasureGroupValue (NUMBER)
GP2017 AdalimumabPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI50 at Week 3595.9 percent of participants
GP2017 AdalimumabPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI75 at Week 3573.5 percent of participants
GP2017 AdalimumabPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI90 at Week 3553.1 percent of participants
GP2017 AdalimumabPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI100 at Week 3528.6 percent of participants
Humira ® AdalimumabPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI75 at Week 3573.6 percent of participants
Humira ® AdalimumabPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI90 at Week 3552.7 percent of participants
Humira ® AdalimumabPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI100 at Week 3530.9 percent of participants
Humira ® AdalimumabPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI50 at Week 3596.4 percent of participants
GP2017 Adalimumab SwitchedPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI90 at Week 3562.7 percent of participants
GP2017 Adalimumab SwitchedPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI75 at Week 3570.6 percent of participants
GP2017 Adalimumab SwitchedPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI100 at Week 3535.3 percent of participants
GP2017 Adalimumab SwitchedPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI50 at Week 3594.1 percent of participants
GP2017 Adalimumab ContinuedPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI100 at Week 3533.3 percent of participants
GP2017 Adalimumab ContinuedPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI75 at Week 3574.5 percent of participants
GP2017 Adalimumab ContinuedPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI50 at Week 3596.1 percent of participants
GP2017 Adalimumab ContinuedPASI 50, PASI75, PASI 90 and PASI100 Response Rates% of patients achieving PASI90 at Week 3561.8 percent of participants

Source: ClinicalTrials.gov · Data processed: Mar 7, 2026