Drug Type Monoclonal antibody |
Synonyms Bosatria, Mepolizamab, Mepolizumab (Genetical Recombination) + [8] |
Target |
Action inhibitors |
Mechanism IL-5 inhibitors(Interleukin-5 inhibitors) |
Therapeutic Areas |
Active Indication |
Inactive Indication |
Originator Organization |
Active Organization |
Inactive Organization- |
License Organization- |
Drug Highest PhaseApproved |
First Approval Date United States (04 Nov 2015), |
RegulationFast Track (United States), Orphan Drug (United States), Priority Review (China), Orphan Drug (South Korea) |


| KEGG | Wiki | ATC | Drug Bank |
|---|---|---|---|
| D04923 | Mepolizumab |
| Indication | Country/Location | Organization | Date |
|---|---|---|---|
| Pulmonary Disease, Chronic Obstructive | United States | 22 May 2025 | |
| Asthma | Japan | 25 Mar 2020 | |
| Chronic rhinosinusitis with nasal polyps | European Union | 01 Dec 2015 | |
| Chronic rhinosinusitis with nasal polyps | Iceland | 01 Dec 2015 | |
| Chronic rhinosinusitis with nasal polyps | Liechtenstein | 01 Dec 2015 | |
| Chronic rhinosinusitis with nasal polyps | Norway | 01 Dec 2015 | |
| Churg-Strauss Syndrome | European Union | 01 Dec 2015 | |
| Churg-Strauss Syndrome | Iceland | 01 Dec 2015 | |
| Churg-Strauss Syndrome | Liechtenstein | 01 Dec 2015 | |
| Churg-Strauss Syndrome | Norway | 01 Dec 2015 | |
| Eosinophilic Asthma | European Union | 01 Dec 2015 | |
| Eosinophilic Asthma | Iceland | 01 Dec 2015 | |
| Eosinophilic Asthma | Liechtenstein | 01 Dec 2015 | |
| Eosinophilic Asthma | Norway | 01 Dec 2015 | |
| Hypereosinophilic Syndrome | European Union | 01 Dec 2015 | |
| Hypereosinophilic Syndrome | Iceland | 01 Dec 2015 | |
| Hypereosinophilic Syndrome | Liechtenstein | 01 Dec 2015 | |
| Hypereosinophilic Syndrome | Norway | 01 Dec 2015 | |
| Severe asthma | United States | 04 Nov 2015 |
| Indication | Highest Phase | Country/Location | Organization | Date |
|---|---|---|---|---|
| Pulmonary Eosinophilia | NDA/BLA | China | 14 Mar 2023 | |
| Asthma, Nasal Polyps, and Aspirin Intolerance | Phase 3 | China | 22 Apr 2021 | |
| Asthma, Nasal Polyps, and Aspirin Intolerance | Phase 3 | Japan | 22 Apr 2021 | |
| Asthma, Nasal Polyps, and Aspirin Intolerance | Phase 3 | Russia | 22 Apr 2021 | |
| Eosinophilia | Phase 3 | United Kingdom | 07 Sep 2020 | |
| Nasal Polyps | Phase 3 | United States | 25 May 2017 | |
| Nasal Polyps | Phase 3 | Argentina | 25 May 2017 | |
| Nasal Polyps | Phase 3 | Australia | 25 May 2017 | |
| Nasal Polyps | Phase 3 | Canada | 25 May 2017 | |
| Nasal Polyps | Phase 3 | Germany | 25 May 2017 |
Phase 3 | 30 | rhwelnmfhz(ckpmtrlwpe) = No major adverse events occurred fxlvowfesi (zbrlvpnwao ) View more | Negative | 06 Nov 2025 | |||
Placebo | |||||||
Not Applicable | 2,639 | jhqufwbrac(hgomryduef) = adverse events reported primarily as mild to moderate upper respiratory tract infections nwwojhhipt (afboxbsrdr ) | Positive | 24 Oct 2025 | |||
Phase 3 | Churg-Strauss Syndrome myeloperoxidase (MPO)-ANCA | proteinase 3 (PR3)-ANCA | 128 | (ANCA-positive) | ndwuhszvww(ybpvrfcwoo) = mfvmwcdkoc brncnwzfcl (etsjzrbnig ) View more | Positive | 24 Oct 2025 | |
(ANCA-negative) | ndwuhszvww(ybpvrfcwoo) = dmbztjoxyx brncnwzfcl (etsjzrbnig ) View more | ||||||
Phase 3 | 140 | lmnpwjbgzo(cgupynjnli) = fislznmtsw bzkngqlyht (xqonyipkub ) View more | Positive | 24 Oct 2025 | |||
ntcofvhyes(qkthtdgwih) = vdneixxwqn pdwfyydfgu (fmmsmhwjrq ) | |||||||
Not Applicable | 48 | fmsgvhtrer(uobshzamqe) = byudmeqwik zlqjkkmshs (dlxwnoykkn, 60 - 223) View more | Positive | 24 Oct 2025 | |||
Not Applicable | 35 | Mepolizumab + Glucocorticoid | mxcfjarkue(mfnsjmspsk) = inpbqcyrqy tcbffnkwav (przizwcolg ) View more | Positive | 24 Oct 2025 | ||
Not Applicable | 7 | nafnlbpjwk(gjgmsqobdn) = ehvvgyufnr lklutndmee (bcjknrbdah ) View more | Positive | 24 Oct 2025 | |||
Phase 3 | 128 | jarjryvavv(yqiiesusbz) = In total, 128 patients entered the OLE. At the beginning of the double-blind period (baseline), the most commonly reported airway-related manifestations were asthma (25.8% of patients), paranasal sinus involvement (15.6%), and bloody nasal discharge/crusts/ulcers/granulomata (14.1%). All these manifestations resolved rapidly in most patients and were present in < 4% of patients by Week 104 (Figure 1). Sensory peripheral neuropathy (9.4%), arthralgia/arthritis (7.8%), and myalgia (6.3%) were the most reported non-airway manifestations at baseline, and their frequency also decreased rapidly to < 3% by Week 104. Cutaneous (3.9%) and renal manifestations (1.6%) were infrequent at baseline and either resolved or affected < 1% of patients by Week 104. Cardiac manifestations were not present at baseline; however, ischaemic cardiac pain and congestive cardiac failure experienced in one patient (0.9%), were present at Week 60. emayljnjif (ggnqgtskog ) | Positive | 24 Oct 2025 | |||
Phase 3 | 18 | (Mepolizumab) | tchmwkpcyp(qqqghqcxjg) = wkikimwxzk irqecsotfc (fmnkehbcxh, 6.60) View more | - | 24 Sep 2025 | ||
placebo (Placebo) | tchmwkpcyp(qqqghqcxjg) = axsrdnptat irqecsotfc (fmnkehbcxh, 11.49) View more | ||||||
Phase 4 | 46 | (Mepolizumab Arm) | zozvzqtqvx(hkqrqbyjuy) = bbkthzoopf rprxslsmue (wubvtxfxfb, aotogqpdwc - ugztnfnjyr) View more | - | 16 Sep 2025 | ||
(Placebo Arm) | zozvzqtqvx(hkqrqbyjuy) = uqwuifduoa rprxslsmue (wubvtxfxfb, fdbnfidxye - kzqctbhxzd) View more |






