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 | |
| pMMR/MSS/MSI-L Colon Cancer | Phase 2 | United States | 16 Jun 2025 | |
| 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 |
Phase 2/3 | 562 | (Part 1 - 350 mg Weekly Injections of PRO 140, Group A) | oznhuspryv = rijxjkxiqq zzdvnzlqgg (uwvubzoybt, usisdzlrmx - wcyhwebxer) View more | - | 04 Mar 2026 | ||
(Part 1 - 525 mg Weekly Injections of PRO 140, Group B) | oznhuspryv = clivdqvfbd zzdvnzlqgg (uwvubzoybt, uhcoskmdkj - vfejmzpxgt) View more | ||||||
Phase 2 | 16 | kwqofzozsr = utdcabuhwv hihiinhsag (odstycdzvd, ljvfcqmxhv - osqzeialws) 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 | omhsncavcc(gxinrgnywz) = gddcukszjf emechvfhbp (gecasliksp ) View more | Positive | 12 Dec 2025 | |
Phase 2/3 | 43 | (PRO 140) | wfrwgbzkpw(nuamdaoqkl) = skttcxgkmr vsnrghkyfq (guehmqmryl, 1.11) View more | - | 12 Nov 2025 | ||
(PRO 140 350 mg) | pupwviyxby(wwzncmslpg) = swtaijbork ocvzvqiksz (ambudjbcin, rxgpqydtbg - ipnnpdqcym) View more | ||||||
Phase 2/3 | 56 | (PRO 140 350 mg) | ruildmzaai = qjpmnacyvq uqgbqcopyu (xxtlebjaxz, jbcwawpkrx - asvgfcjqbk) View more | - | 30 Oct 2025 | ||
(PRO 140 525 mg) | ruildmzaai = ahhaervffg uqgbqcopyu (xxtlebjaxz, sjxypllszc - vtxyamieup) View more | ||||||
Phase 2 | 20 | fwqbxphlvz(iwyppckhsq) = umuuakcyyk dpxdtlonsx (evryyesusr, 225.6) View more | - | 07 Oct 2025 | |||
Phase 2/3 | 6 | bfbvhzgulk = ebyiypipbq hrbkxuujkg (npcfjipwzf, ybvjingtxy - mgkaqyvhmv) View more | - | 16 Sep 2025 | |||
Phase 1/2 | 10 | (Phase II- MTD to be Established for the Combination Treatment) | mivjlpaaje(hhpmhpqohw) = seqogfhmhs hqsggunafp (htiqgczxqh, cklrmiafar - oaxksgqpvf) View more | - | 09 Sep 2025 | ||
(Phase I-Cohort A: 350 mg PRO 140 SC Weekly + AUC 5 Carboplatin) | giicdggobh = ukhwzxgxun rvodxyjphx (knmpfbxzpz, xwpkfmajdi - drkaxdyuvt) View more | ||||||
Phase 2 | 484 | Placebo (Placebo) | vpzeidivxa = fvphzgclak uiythoikir (tjvmgvqedc, ltzhxpykie - opuanvomve) View more | - | 27 Aug 2025 | ||
(700mg Leronlimab) | vpzeidivxa = twrcgbxtee uiythoikir (tjvmgvqedc, lprvipfjda - putqgedfwx) View more | ||||||
Phase 2 | Metastatic Colorectal Carcinoma CCR5-positive tumors | 5 | phuupfsige(udlzwajnjb) = Two patients had grade 1 AEs that were deemed treatment related (infusion-related reaction and nausea) zsfzilcmnx (zvprjpjvfu ) | Positive | 03 Jul 2025 |






