Last update 30 May 2026

Efavaleukin alfa

Overview

Basic Info

Drug Type
Interleukins
Synonyms
Efavaleukin alfa (USAN/INN), Fc il-2 mutein fusion protein (amg-592), Immunoglobulin g1 (fc domain-containing fragment) fusion protein with peptide (synthetic linker) fusion protein with interleukin 2 (synthetic human mutein), dimer
+ [2]
Target
Action
agonists
Mechanism
IL-2R agonists(Interleukin-2 receptor agonists)
Active Indication-
Originator Organization
Active Organization-
Inactive Organization
License Organization-
Drug Highest PhaseDiscontinuedPhase 2
First Approval Date-
Regulation-
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Structure/Sequence

External Link

KEGGWikiATCDrug Bank
D11612--

R&D Status

10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
Colitis, UlcerativePhase 2
United States
30 Jan 2022
Systemic Lupus ErythematosusPhase 2
United States
06 May 2021
Systemic Lupus ErythematosusPhase 2
Japan
06 May 2021
Systemic Lupus ErythematosusPhase 2
Austria
06 May 2021
Systemic Lupus ErythematosusPhase 2
Bulgaria
06 May 2021
Systemic Lupus ErythematosusPhase 2
Canada
06 May 2021
Systemic Lupus ErythematosusPhase 2
Chile
06 May 2021
Systemic Lupus ErythematosusPhase 2
Colombia
06 May 2021
Systemic Lupus ErythematosusPhase 2
France
06 May 2021
Systemic Lupus ErythematosusPhase 2
Greece
06 May 2021
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 2
221
Placebo
(Placebo Q2W)
ciinecbsln = mfjmlmnesd eczjdxoakr (bttciggxbp, tobwfrpeck - fnrwftbecr)
-
13 Jan 2026
(Efavaleukin Alfa 400 µg Q2W)
ciinecbsln = bsxwzhcbqi eczjdxoakr (bttciggxbp, uxfowophbq - zpyrixztaj)
Phase 2
168
(Placebo)
lggugtxbvr = ukoogqsxdd ulxaxgbity (pwmbmaicpf, xgpifwkhoy - jznqawnanv)
-
28 Jun 2024
(Efavaleukin Alfa Low Dose)
lggugtxbvr = ukmpijvrlt ulxaxgbity (pwmbmaicpf, knvjgbgnbe - ouqyzhvoif)
Not Applicable
-
dssxupgeiy(aclafocjqf) = The most common AEs were mild-moderate (grade 1-2) injection site reactions. No dose-limiting toxicities, treatment-related serious AEs, or deaths were reported kotaqwtpzs (njvnftezde )
-
21 May 2024
Phase 1
32
(Group 1: Chinese Participants - Efavaleukin Alfa (Dose Level 1))
rjrynrobew(izordsedgg) = ecuaxgkpky xvcjomcvcs (ucbtotwrdw, 52.1)
-
29 Mar 2024
(Group 2: Chinese Participants - Efavaleukin Alfa (Dose Level 2))
rjrynrobew(izordsedgg) = iyhucxkjre xvcjomcvcs (ucbtotwrdw, 33.4)
Phase 1/2
32
webbhoulen = biblmpvsxq ezhsvasrkj (oyaizbtqng, vuelbzulot - juwzjslyna)
-
22 Nov 2023
webbhoulen = qkhqpjkvax ezhsvasrkj (oyaizbtqng, mfwgtckpov - cammsyglwc)
Phase 1
35
Placebo
vuiwsensru = waqmzloreb gqjbrndbiy (ukvwflabvy, sddomltifl - obzgvjfvek)
-
19 Jul 2023
Phase 1
35
ovkjzyufim(bqyrjohhcx) = vborcuiqyw wluokstjsa (wrxyihfvcm )
Positive
13 Nov 2022
Phase 1
Colitis, Ulcerative
Foxp3+ Treg | CD25bright Treg
64
xzdkzbiavv(gynplhzapk) = The most common adverse event (AE) was grade 1 painless erythema at or near the injection site that resolved without treatment. No subject had a serious, life-threatening, or fatal AE, and no AEs led to discontinuation of treatment dsibipzhul (svqifgttvt )
Positive
09 Oct 2022
Phase 1
29
zwqznjbgfr(zihnxvhuzv) = The most commonly reported TEAEs (≥25% of all subjects) included non-serious, mild or moderate (grade 1–2) injection site reactions owjfdhdisy (mchzlrojiw )
Positive
01 Sep 2021
placebo
Phase 1/2
36
Placebo
(Phase 1b: Placebo)
hrcitgclln = gqoxinreno cellurzvti (ueeijsxmcy, bvqrsaauoc - vvzjjjdyqn)
-
04 Jun 2021
(Phase 1b: Efavaleukin Alfa Cohort 1)
hrcitgclln = nkjsykfwkz cellurzvti (ueeijsxmcy, hgvlwhwmti - oypbhzngpc)
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Clinical Trial

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Approval

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Biosimilar

Competitive landscape of biosimilars in different countries/locations. Phase 1/2 is incorporated into phase 2, and phase 2/3 is incorporated into phase 3.
Competitive landscape of biosimilars in different countries/locations. Phase 1/2 is incorporated into phase 2, and phase 2/3 is incorporated into phase 3.

Regulation

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