Inclusion Criteria:

        For inclusion in the study, patients must fulfill all of the following criteria:

          1. Male or female at least 18 years of age at the time of first dosing

          2. Patients must give signed informed consent before any study-related activities are
             conducted.

          3. Patients in the United States must have given written authorization for the release of
             protected health information in compliance with HIPAA regulations; patients in other
             countries must provide appropriate authorization as needed by regulatory authorities
             in each country.

          4. Histologically or cytologically confirmed diagnosis of malignant paraganglioma or
             pheochromocytoma and either evidence of metastases or unresectability.

          5. Evidence of recent disease progression (radiological, biochemical, symptomatic) while
             the patient was either not receiving any therapy or was receiving a therapy that was
             deemed ineffective.

          6. Measurable disease defined as that which can be measured in at least one dimension
             with a minimum size of 10 mm by CT scan. The patient must also have at least three
             baseline radiographic studies obtained in the previous twelve months with at least one
             scan obtained within six weeks of enrollment. If a patient being considered for
             enrollment on trial has not had three scans performed in the twelve months prior to
             enrollment and if in the opinion of the investigator a delay of one month will not
             impact the clinical course, then enrollment on protocol and the start of the
             lanreotide therapy can be delayed by one month or longer to obtain the additional time
             point. If in the opinion of the investigator such a delay may have adverse
             consequences then enrollment on the protocol should not be considered as an option

          7. Confirmation of positive somatostatin receptor status (SRS) by Somatostatin Receptor
             Scintigraphy. Either of these studies will need to have been performed in the 6 months
             prior to the screening visit. Only if one has not been performed within the previous 6
             months will a SRS study be required. if an SRS is required, it will be performed
             greater than or equal to 24 hours after a previous injection of subcutaneous
             octreotide).

          8. Patients may not have had prior octreotide, long acting release (LAR)-octreotide,
             lanreotide or a therapeutic radiolabeled somatostatin analog (PRRT)

          9. Eastern Cooperative Oncology Group (ECOG) 0-2.

         10. Life expectancy of greater than 12 weeks.

         11. Patients must have prothrombin time (PT)/international normalized ratio (INR)/partial
             thromboplastin time (PTT) within 2 x the upper limit

         12. Patients may have had prior radiation therapy. A minimum of 42 days must have elapsed
             between the end of radiotherapy and registration onto the study. Measurable disease
             must exist outside of the radiation field for eligibility.

         13. Previous surgery: Previous major surgery is permitted provided that it was performed
             at least 28 days prior to patient registration.

         14. Laboratory requirements [parameter limits]: Absolute granulocyte count (AGC) greater
             than 1.5 x 109/L; platelet count greater than100 x 109/L; serum bilirubin less than
             1.5 x upper limit of normal (ULN); serum aspartate aminotransferase (AST) and alanine
             aminotransferase (ALT) less than 2.5 x ULN; serum amylase less than1.5 x ULN; serum
             lipase less than 1.5 x ULN; serum calcium less than 3 mmol/L; serum creatinine less
             than 1.5 x ULN

         15. If female, the patient must not be pregnant (confirmed by negative pregnancy test) and
             must have the following documented via verbally given history:

               -  At least 1 year postmenopausal (natural cessation of menses), or

               -  Surgically sterile (if by tubal ligation, surgery must have been performed more
                  than 3 months prior to entry into the study), or

               -  If of childbearing potential and sexually active, she must be using or agree to
                  use an acceptable form of contraception (oral, injected, transdermal or implanted
                  contraceptives, diaphragm or barrier method with spermicidal and/or intrauterine
                  device); local methods such as condoms or sponges/vaginal tablets are only to be
                  used as an additional form of contraception.

         16. If the male patient has a partner of childbearing potential and he is sexually active,
             he must be using or agree to use a barrier method of contraception (condom with
             spermicidal preferred).

         17. Be able to communicate and cooperate with the principal investigator and the staff and
             willing to comply with the study instructions

        Exclusion Criteria:

        A patient who meets any of the following criteria is ineligible for participation in the
        study:

          1. Patient has a history of known allergy or hypersensitivity to:

               -  Investigational drug or any components of its formulation

               -  Lanreotide, octreotide or any other somatostatin analog

          2. Treatment with any other investigational drug or with "cytotoxic chemotherapy" within
             28 days prior to the start of study therapy (lanreotide) and/or at any time during the
             patient's participation in the study

          3. Treatment with sunitinib, radiotherapy, a radiolabelled specific somatostatin receptor
             (SSTR) analog, and/or tumor debulking less than 14 days prior to the start of study
             therapy (lanreotide). Treatment with metaiodobenzylguanidine (MIBG) therapy less than
             90 days prior to the start of study therapy (lanreotide).

          4. History of hepatic arterial embolization or hepatic arterial chemoembolization less
             than 28 days prior to the start of study therapy (lanreotide). Measurable disease
             shall exist outside of treated lesions for eligibility.

          5. History of hepatic selective internal radiation therapy (e.g. Sir-spheres) less than
             90 days prior the start of study therapy (lanreotide). Measurable disease shall exist
             outside the liver for eligibility.

          6. Uncontrolled diabetes (defined as inability to maintain fasting blood glucose levels
             below 200 mg/dL despite best medical therapy, within last 28 days prior to screening)
             and/or hypertension (defined as inability to maintain blood pressure levels below
             systolic 140 mm Hg and/or diastolic 90 mm Hg on at least three antihypertensive
             medications, within last 28 days prior to screening).

          7. Renal impairment (glomerular filtration rate less than 30 ml/min/1.73m2) and/or liver
             impairment (serum total bilirubin greater than 1.5 x ULN, or greater than 2.5 x ULN if
             liver metastases)

          8. Uncontrolled cardiac disease (acute myocardial infarction, unstable angina or
             hospitalization for decompensation of congestive heart failure within the 28 days
             prior to the start of study therapy (lanreotide).

          9. Any malignancies except:

               -  Basal cell carcinoma of the skin

               -  In situ carcinoma of the cervix

               -  2 years disease-free after curative cancer treatment (completion of surgery,
                  adjuvant chemotherapy and/or radiation, and considered no evidence of disease
                  from non phaeochromocytomas and paragangliomas (PPGL) malignancy)

         10. Any serious medical condition that could jeopardize the safety of the patient and/or
             the efficacy assessments of the study