A Comparative Study Between ABP 501 and Humira® in Participants With Moderate to Severe Plaque Psoriasis
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ClinicalTrials.gov Identifier: NCT05073315 |
Recruitment Status :
Completed
First Posted : October 11, 2021
Last Update Posted : January 5, 2023
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Condition or disease | Intervention/treatment | Phase |
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Plaque Psoriasis | Drug: Adalimumab Drug: ABP 501 | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 425 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Double (Participant, Investigator) |
Masking Description: | Study is double-blind. |
Primary Purpose: | Treatment |
Official Title: | A Multicenter, Randomized, Double-blind Study Evaluating the Pharmacokinetics, Efficacy, Safety, and Immunogenicity of Multiple Switches Between Humira® (Adalimumab [US]) and ABP 501 Compared With Continued Use of Adalimumab in Subjects With Moderate to Severe Plaque Psoriasis |
Actual Study Start Date : | October 4, 2021 |
Actual Primary Completion Date : | December 19, 2022 |
Actual Study Completion Date : | December 19, 2022 |

Arm | Intervention/treatment |
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Active Comparator: Continued-use Group (Adalimumab)
Randomized participants will receive continuous injection of adalimumab Q2W until last dose at Week 28.
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Drug: Adalimumab
Participants will receive subcutaneous (SC) injection of adalimumab
Other Name: Humira® |
Experimental: Switching Group (Adalimumab - ABP 501)
Participants will initially receive adalimumab until Week 10 during the lead-in period. Thereafter, starting from Week 12, participants will switch between ABP 501 and adalimumab Q2W with last dose of ABP 501 at Week 28.
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Drug: Adalimumab
Participants will receive subcutaneous (SC) injection of adalimumab
Other Name: Humira® Drug: ABP 501 Participants will receive SC injection of ABP 501 |
- Area Under the Curve From Time 0 Over the Dosing Interval (AUCtau) of Adalimumab and ABP 501 [ Time Frame: Week 28 (Pre-dose and Post-dose) through Week 30 ]To evaluate similarity of AUCtau in participants after multiple switches between adalimumab and ABP 501, compared to participants receiving continued-use of adalimumab.
- Maximum Concentration (Cmax) of Adalimumab and ABP 501 [ Time Frame: Week 28 (Pre-dose and Post-dose) through Week 30 ]To evaluate similarity of Cmax in participants after multiple switches between adalimumab and ABP 501, compared to participants receiving continued-use of adalimumab.
- Time of Maximum Concentration (tmax) of Adalimumab and ABP 501 [ Time Frame: Week 28 (Pre-dose and Post-dose) through Week 30 ]To evaluate tmax in participants after multiple switches between adalimumab and ABP 501, compared to participants receiving continued-use of adalimumab.
- Trough Concentration (Ctrough) of Adalimumab and ABP 501 [ Time Frame: Week 14 through Week 28 (Pre-dose and Post-dose) ]To evaluate Ctrough in participants after multiple switches between adalimumab and ABP 501, compared to participants receiving continued-use of adalimumab.
- Percent Improvement in PASI From Baseline to Week 30 [ Time Frame: Baseline (Day 1) through Week 30 ]The PASI is a measure of the average redness (erythema), thickness (induration), and scaliness (scaling); each graded on a 0-4 scale (0 = clear; 1-4= increasing severity) of the lesions, weighted by the area of involvement in the four main body areas (i.e., head, arms, trunk to groin, and legs to top of buttocks). The PASI score ranges from 0 to 72. The higher score represents the worse symptom severity.
- Percentage of Participants with PASI 75 Response at Week 30 [ Time Frame: At Week 30 ]Reduction in disease as measured by PASI score. The PASI 75 response is a 75% or greater improvement (reduction in disease [PASI 75]) from baseline in PASI score. The PASI is a measure of the average redness (erythema), thickness (induration), and scaliness (scaling; each graded on a 0-4 scale (0 = clear; 1-4= increasing severity) of the lesions, weighted by the area of involvement in the four main body areas (i.e., head, arms, trunk to groin, and legs to top of buttocks). The PASI score ranges from 0 to 72. The higher score represents the worse symptom severity.
- Percentage of Participants with PASI 90 Response at Week 30 [ Time Frame: At Week 30 ]Reduction in disease as measured by PASI score. The PASI 90 response is a 90% or greater improvement (reduction in disease [PASI 90]) from baseline in PASI score. The PASI is a measure of the average redness (erythema), thickness (induration), and scaliness (scaling; each graded on a 0-4 scale (0 = clear; 1-4= increasing severity) of the lesions, weighted by the area of involvement in the four main body areas (i.e., head, arms, trunk to groin, and legs to top of buttocks). The PASI score ranges from 0 to 72. The higher score represents the worse symptom severity.
- Percentage of Participants with PASI 100 Response at Week 30 [ Time Frame: At Week 30 ]Reduction in disease as measured by PASI score. The PASI 100 response is a 100% improvement (reduction in disease [PASI 100]) from baseline in PASI score. The PASI is a measure of the average redness (erythema), thickness (induration), and scaliness (scaling; each graded on a 0-4 scale (0 = clear; 1-4= increasing severity) of the lesions, weighted by the area of involvement in the four main body areas (i.e., head, arms, trunk to groin, and legs to top of buttocks). The PASI score ranges from 0 to 72. The higher score represents the worse symptom severity.
- Number of Participants With Treatment Related Adverse Events (TEAEs) [ Time Frame: From Screening (≤ 28 days) through Week 32 or End of Study ]To assess the safety in participants after multiple switches between ABP 501 and adalimumab compared with participants receiving continued-use of adalimumab.
- Number of Participants With Events of Interest [ Time Frame: From Screening (≤ 28 days) through Week 32 or End of Study ]To assess the safety in participants after multiple switches between ABP 501 and adalimumab compared with participants receiving continued-use of adalimumab.
- Percentage of participants with Anti-drug Antibodies (ADA)/Neutralizing Antibodies (Nab) over time [ Time Frame: Baseline (Day 1) through Week 32 (Pre-dose) or End of Study ]To assess the immunogenicity in participants after multiple switches between ABP 501 and adalimumab compared with participants receiving continued-use of adalimumab.

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years to 75 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Participants has moderate to severe plaque psoriasis (with or without psoriatic arthritis) for at least 6 months and has stable disease for at least 2 months
- Participants has a score of PASI ≥ 12, involvement of ≥ 10% body surface area (BSA) and static Physician's Global Assessment (sPGA) ≥ 3 at screening and at baseline
- Participant has no known history of latent or active tuberculosis
Exclusion Criteria:
- Participant has erythrodermic psoriasis, pustular psoriasis, guttate psoriasis, medication induced psoriasis, or other skin conditions at the time of screening (eg, eczema) that would interfere with evaluations of the effect of investigational product of psoriasis
- Participant has an active infection or history of infections
- Participant has received biologic treatment for psoriasis within the previous month or 5 drug half-lives (whichever is longer) prior to enrollment
- Participant has received nonbiologic systemic psoriasis therapy within 4 weeks prior to enrollment
- Participant has received ultraviolet (UV) A phototherapy (with or without psoralen) or excimer laser within 4 weeks prior to enrollment, or UV B phototherapy within 2 weeks prior to enrollment
- Participant has received topical psoriasis treatment within 2 weeks prior to enrollment

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05073315

Study Director: | MD | Amgen |
Responsible Party: | Amgen |
ClinicalTrials.gov Identifier: | NCT05073315 |
Other Study ID Numbers: |
20200497 2021-000542-18 ( EudraCT Number ) |
First Posted: | October 11, 2021 Key Record Dates |
Last Update Posted: | January 5, 2023 |
Last Verified: | January 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | De-identified individual patient data for variables necessary to address the specific research question in an approved data sharing request |
Supporting Materials: |
Study Protocol Statistical Analysis Plan (SAP) Informed Consent Form (ICF) Clinical Study Report (CSR) |
Time Frame: | Data sharing requests relating to this study will be considered beginning 18 months after the study has ended and either 1) the product and indication have been granted marketing authorization in both the US and Europe or 2) clinical development for the product and/or indication discontinues and the data will not be submitted to regulatory authorities. There is no end date for eligibility to submit a data sharing request for this study. |
Access Criteria: | Qualified researchers may submit a request containing the research objectives, the Amgen product(s) and Amgen study/studies in scope, endpoints/outcomes of interest, statistical analysis plan, data requirements, publication plan, and qualifications of the researcher(s). In general, Amgen does not grant external requests for individual patient data for the purpose of re-evaluating safety and efficacy issues already addressed in the product labelling. Requests are reviewed by a committee of internal advisors. If not approved, a Data Sharing Independent Review Panel will arbitrate and make the final decision. Upon approval, information necessary to address the research question will be provided under the terms of a data sharing agreement. This may include anonymized individual patient data and/or available supporting documents, containing fragments of analysis code where provided in analysis specifications. Further details are available at the URL below. |
URL: | http://www.amgen.com/datasharing |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
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