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VECTIBIX
Proper Name
Panitumumab
Indication
Vectibix is an epidermal growth factor receptor antagonist indicated as a single agent for the treatment of metastatic colorectal carcinoma with disease progression on or following fluoropyrimidine, oxaliplatin, and irinotecan chemotherapy regimens.
Description

Vectibix (panitumumab) is a recombinant, human IgG2 kappa monoclonal antibody that binds specifically to the human epidermal growth factor receptor (EGFR). Panitumumab has an approximate molecular weight of 147 kDa.

Manufacturing Platform

PARAMETER

DATA

Manufacturer

Amgen Incorporated

Indication

Vectibix is an epidermal growth factor receptor antagonist indicated as a single agent for the treatment of metastatic colorectal carcinoma with disease progression on or following fluoropyrimidine, oxaliplatin, and irinotecan chemotherapy regimens. Approval is based on progression-free survival; no data demonstrate an improvement in disease-related symptoms or increased survival with Vectibix.

Cell Substrate

Genetically engineered mammalian (Chinese Hamster Ovary) cells.

Manufacturing platform

Panitumumab is produced from Chinese Hamster Ovary (CHO) cells and purified by a series of chromatography steps, viral inactivation step, viral filtration step and ultrafiltration/diafiltration steps. The expression plasmid containing the genes for the heavy and light chains was transfected into CHO cells. Following cloning and sub-cloning steps, one clone producing panitumumab at high levels was selected as lead cell line. A two-tiered cell banking system of Master Cell bank (MCB) and Working Cell Bank (WCB) has been developed and maintained in accordance to cGMP and ICH guidelines.

Dose in vial/final container

Single-use vials (20 mg/mL): 100 mg/5 mL, 200 mg/10 mL, 400 mg/20 mL.

Dose to patient

6 mg/kg every 14 days as an intravenous infusion over 60 minutes (≤ 1000 mg) or 90 minutes (> 1000 mg)

 CLINICAL TRIALS

NCT

TRIAL PHASE

NO OF PATIENTS ENROLLED

STUDY TITLE

COUNTRIES

Monotherapy (mCRC)

NCT00113763

3

463

Evaluating Panitumumab (ABX-EGF) Plus Best Supportive Care Versus Best Supportive Care in Patients with Metastatic Colorectal Cancer

-

NCT00113776

2

-

Evaluating ABX-EGF Extended Therapy in Subjects with Metastatic Colorectal Cancer

-

NCT00083616

2

185

Evaluating Panitumumab (ABX-EGF) Monotherapy in Patients with Metastatic Colorectal Cancer Following Treatment with Fluoropyrimidine, Irinotecan, and Oxaliplatin Chemotherapy

-

NCT00089635

2

203

Panitumumab (ABX-EGF) Monotherapy in Patients with Metastatic Colorectal Cancer

-

NCT00111774

2

150

Evaluating ABX-EGF in Patients with Metastatic Colorectal Carcinoma

-

Solid Tumors

NCT00425204

2

31

Study for Patients Who Have Benefited and Tolerated Prior Panitumumab Treatment

-

NCT00091806

1

86

Two Dose Schedules of Panitumumab in Subjects with Advanced Solid Tumors

-

NCT00101920

2

50

ABX-EGF as Second Line Treatment of Advanced Non-Small-Cell Lung Cancer (NSCLC)

-

NCT00425035

2

115

Safety and Efficacy Study of ABX-EGF in Patients with Renal Cancer, Part 2

-

Combination Therapy

NCT00111761

2

43

Evaluating Panitumumab (ABX-EGF) in Patients with Metastatic Colorectal Cancer

-

NCT00034346

2

194

ABX-EGF in Combination with Paclitaxel and Carboplatin for the Treatment of Advanced Non-Small-Cell Lung Cancer (NSCLC)

-

Key Regulatory Milestones

US pre-BLA

May 12, 2005

US Approval

September 27, 2006

EU Approval

December 3, 2007

Health Canada Approval

December 12, 2008

TGA

May 7, 2012

Advanced Facts