0000898430-01-502716 Sample Contracts

EXHIBIT 4.3 FIRST AMENDED REGISTRATION RIGHTS AGREEMENT -------------------------------------------

Registration Rights Agreement • October 3rd, 2001 • American Pharmaceutical Partners Inc /Ca/

• Contract Type
  Registration Rights Agreement
• Filed
  October 3rd, 2001
• Company
  American Pharmaceutical Partners Inc /Ca/

ARTICLE I TERM ----

Office Lease Agreement • October 3rd, 2001 • American Pharmaceutical Partners Inc /Ca/

• Contract Type
  Office Lease Agreement
• Filed
  October 3rd, 2001
• Company
  American Pharmaceutical Partners Inc /Ca/

AGREEMENT AMB PROPERTY II, L.P. --------------------- Landlord AND AMERICAN PHARMACEUTICAL PARTNERS, INC. -------------------------------------- Tenant

Lease Agreement • October 3rd, 2001 • American Pharmaceutical Partners Inc /Ca/

• Contract Type
  Lease Agreement
• Filed
  October 3rd, 2001
• Company
  American Pharmaceutical Partners Inc /Ca/

LEASE

Lease • October 3rd, 2001 • American Pharmaceutical Partners Inc /Ca/

• Contract Type
  Lease
• Filed
  October 3rd, 2001
• Company
  American Pharmaceutical Partners Inc /Ca/