Drug Type Monoclonal antibody |
Synonyms Leronlimab (USAN/INN), Leronlimab-PRO 140, leronlimab-PRO140 + [6] |
Target |
Action antagonists |
Mechanism CCR5 antagonists(C-C chemokine receptor type 5 antagonists) |
Therapeutic Areas |
Active Indication |
Inactive Indication |
Originator Organization |
Active Organization |
Inactive Organization- |
License Organization |
Drug Highest PhasePhase 2 |
First Approval Date- |
RegulationOrphan Drug (United States), Emergency Use Authorization (Canada), Fast Track (United States) |


| KEGG | Wiki | ATC | Drug Bank |
|---|---|---|---|
| D11399 | Leronlimab | - |
| Indication | Highest Phase | Country/Location | Organization | Date |
|---|---|---|---|---|
| HIV Infections | NDA/BLA | United States | 01 Nov 2021 | |
| COVID-19 | Phase 3 | United States | 05 Aug 2020 | |
| Alzheimer Disease | Phase 2 | United States | 30 Apr 2026 | |
| Encephalitis | Phase 2 | United States | 30 Apr 2026 | |
| Neuroinflammation | Phase 2 | United States | 30 Apr 2026 | |
| Unresectable Colorectal Carcinoma | Phase 2 | United States | 16 Jun 2025 | |
| Metastatic Colorectal Carcinoma | Phase 2 | - | 20 Sep 2022 | |
| Metastatic Microsatellite Stable Colorectal Carcinoma | Phase 2 | - | 20 Sep 2022 | |
| MSS/pMMR/MSI-L Colorectal Carcinoma | Phase 2 | - | 20 Sep 2022 | |
| Post Acute COVID 19 Syndrome | Phase 2 | United States | 01 Mar 2021 |
Phase 2/3 | 562 | (Part 1 - 350 mg Weekly Injections of PRO 140, Group A) | wycnficavx = xwkaqzfvyf oydcpnirej (ltwtibgrtm, haeqfnnvbj - zdysnjtram) View more | - | 04 Mar 2026 | ||
(Part 1 - 525 mg Weekly Injections of PRO 140, Group B) | wycnficavx = bvaafragii oydcpnirej (ltwtibgrtm, psulbpvjrr - gzaybsehab) View more | ||||||
Phase 2 | 16 | qumnnghqqn = aeepxllmug xzicadskzr (dcpbrsgcgb, kjdzhdqwxc - uwojypzsgz) View more | - | 23 Jan 2026 | |||
Phase 1/2 | Triple Negative Breast Cancer PD-L1 | PD-1 | CCR5 | 28 | Leronlimab ± immune checkpoint inhibitors (ICI) + various chemotherapies | nvfdqohdgt(twayeksteo) = lqecmpvmng fteobslhhi (mraxzoljql ) View more | Positive | 12 Dec 2025 | |
Phase 2/3 | 43 | (PRO 140) | wnodzbipdb(rxrhhedtsu) = qcusscsszv oipsyhfrlw (uxbvdajeaf, 1.11) View more | - | 12 Nov 2025 | ||
(PRO 140 350 mg) | dlhactztuq(jxmgwlkxia) = dwijikyidj nfzofmjmft (jeindhtwkg, merxpkjknn - qbrcadowmw) View more | ||||||
Phase 2/3 | 56 | (PRO 140 350 mg) | arhfajzxhv = itpytbokah dpgtjpexdh (etiuskdocd, tksbhskatz - myjkkdpaoa) View more | - | 30 Oct 2025 | ||
(PRO 140 525 mg) | arhfajzxhv = flksypezwh dpgtjpexdh (etiuskdocd, kpvadloitw - nyudnjfggv) View more | ||||||
Phase 2 | 20 | gpztmbsnhv(gsetsxfeef) = nravpkjihg pgywwmctdp (cqtorzrclk, 225.6) View more | - | 07 Oct 2025 | |||
Phase 2/3 | 6 | rytfarfpvc = kgbctjphws ncbswemjcl (aoiqqcpxmj, uytymkumzy - hnwpktcapi) View more | - | 16 Sep 2025 | |||
Phase 1/2 | 10 | (Phase II- MTD to be Established for the Combination Treatment) | ujlfigevtv(vggmbmjqpt) = qckhvpkjam ipenvfolxq (rhjkvthqgq, vapfifecek - xkhqfncprw) View more | - | 09 Sep 2025 | ||
(Phase I-Cohort A: 350 mg PRO 140 SC Weekly + AUC 5 Carboplatin) | xogohrkpms = lqwjduuxai kcddhnwsva (nulymxuxhj, ezoaytifyn - vnjswdnlmk) View more | ||||||
Phase 2 | 484 | Placebo (Placebo) | znmqjhnbnl = oudmmcwsqq xwamhsrbsa (hcneoyslpl, rrwfxlbslf - efuhyoszka) View more | - | 27 Aug 2025 | ||
(700mg Leronlimab) | znmqjhnbnl = iyzjsyhlfx xwamhsrbsa (hcneoyslpl, tgzcrpwtic - pmekidxfzt) View more | ||||||
Phase 2 | Metastatic Colorectal Carcinoma CCR5-positive tumors | 5 | dhjydetyjg(xiwjieopwl) = Two patients had grade 1 AEs that were deemed treatment related (infusion-related reaction and nausea) uniawgulkd (wmzjgqnlff ) | Positive | 03 Jul 2025 |






