Phase 2 study of carlumab (CNTO 888), a human monoclonal antibody against CC-chemokine ligand 2 (CCL2), in metastatic castration-resistant prostate cancer.
Invest New Drugs
; 31(3): 760-8, 2013 Jun.
Article
em En
| MEDLINE
| ID: mdl-22907596
ABSTRACT
BACKGROUND:
CC-chemokine ligand 2 (CCL2) promotes tumor growth by angiogenesis, macrophage infiltration and tumor invasion, and distant metastasis. Carlumab (CNTO 888) is a human IgG1κ mAb with high affinity and specificity for human CCL2. Preclinical data suggest carlumab may offer clinical benefit to cancer patients.METHODS:
In a phase 2, open-label study, patients with metastatic castration-resistant prostate cancer (CRPC) previously treated with docetaxel received a 90-min infusion of 15 mg/kg carlumab q2w. The primary endpoint was response rate change from baseline in skeletal lesions, extraskeletal lesions, and PSA values. Secondary endpoints included overall response rate (CR + PR) by RECIST, OS, PSA response, safety, pharmacodynamics, pharmacokinetics, immunogenicity.RESULTS:
Forty-six patients were treated with 6 median (range 1, 26) doses. One patient had SD >6 months. There were no PSA or RECIST responses. Fourteen (34 %) patients had SD ≥ 3 months. Median OS was 10.2 (95 % CI 5.2, not estimable) months. Twelve (39 %) patients reported improved pain scores. AEs occurred in 43 (93 %) patients, including 27 (59 %) with grade ≥ 3 AEs. Common grade ≥ 3 AEs were back (11 %) and bone (9 %) pain. Twenty (43 %) patients experienced SAEs, including pneumonia, spinal cord compression, back pain. No patient developed antibodies to carlumab. Steady-state serum concentrations were achieved after 3 repeated doses and were above the 10-µg/mL target concentration. Suppression of free CCL2 serum concentrations was briefly observed following each dose but was not sustained.CONCLUSION:
Carlumab was well-tolerated but did not block the CCL2/CCR2 axis or show antitumor activity as a single agent in metastatic CRPC.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Neoplasias da Próstata
/
Quimiocina CCL2
/
Anticorpos Neutralizantes
/
Anticorpos Monoclonais
/
Antineoplásicos
Tipo de estudo:
Clinical_trials
Limite:
Aged
/
Humans
/
Male
/
Middle aged
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article