DOTA-TOC in Metastasized Neuroendocrine Tumors

This study has been completed.
Information provided by (Responsible Party):
University Hospital, Basel, Switzerland Identifier:
First received: September 15, 2009
Last updated: August 5, 2015
Last verified: August 2015

The investigators aim to explore the efficacy of [90Y-DOTA]-TOC and [177LuDOTA]-TOC therapy in advanced neuroendocrine cancer. Therefore, the investigators assess response, survival and long-term safety profile of systemic [90Y-DOTA]-TOC and [177LuDOTA]-TOC treatment in metastasized neuroendocrine cancer patients. Adverse events are assessed according to the criteria of the National Cancer Institute. Survival analyses are performed using multiple regression models.

Condition Intervention Phase
Neuroendocrine Tumors
Drug: DOTA-TOC Treatment
Phase 2

Study Type: Interventional
Study Design: Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Phase II Study of [90Y-DOTA]-TOC and [177Lu-DOTA]-TOC in Metastasized Neuroendocrine Tumors

Resource links provided by NLM:

Further study details as provided by University Hospital, Basel, Switzerland:

Primary Outcome Measures:
  • Response [ Time Frame: 3 months ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Toxicity [ Time Frame: 3 months ] [ Designated as safety issue: Yes ]
  • Survival [ Time Frame: life-long ] [ Designated as safety issue: No ]

Enrollment: 1499
Study Start Date: September 1997
Study Completion Date: December 2013
Primary Completion Date: September 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: DOTA-TOC
Treatment arm
Drug: DOTA-TOC Treatment

Intravenous injections of DOTA-TOC. Repeated treatment cycles for responders, except in case of

  • renal toxicity
  • loss of patient transferability or
  • denial of further treatment.
Other Names:
  • tetraazacyclododecanetetraacetic acid (DOTA) modified
  • somatostatin analog Tyr3-octreotide (TOC)

Detailed Description:

Background: Systemic treatment with the 90Yttrium (90Y) labeled, tetraazacyclododecanetetraacetic acid (DOTA) modified somatostatin analog Tyr3-octreotide (TOC) was introduced in 1998 (Otte et al. Lancet 1998). [90Y-DOTA]-TOC is administered intravenously and binds to the somatostatin receptor subtype 2, located on the surface of the tumor cell, and exerts its cytotoxic effects by β-irradiation. The treatment has moderate acute hematologic and nephrologic toxicity and has developed into a promising therapeutic tool for tumors expressing its target receptor (Iten et al. Clin Cancer Res 2007, Iten et al. Cancer 2009).

Study Aim: To explore the efficacy of [90Y-DOTA]-TOC and [177LuDOTA]-TOC therapy in advanced neuroendocrine cancer.

Study Hypothesis: Response to DOTA-TOC is correlated with prolonged survival.

Study Type: Clinical phase II, single-center, open-label trial

Patients: 1500 patients


Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • histologically confirmed neuroendocrine cancer
  • stage IVc disease by definition of the American Joint Committee on Cancer, i.e. occurrence of distant metastases
  • visible tumor uptake in the pretherapeutic somatostatin receptor subtype 2 scintigraphy (111In-Octreoscan)

Exclusion Criteria:

  • concurrent anti-tumor treatment
  • secondary malignancies
  • pregnancy
  • breast-feeding
  • incontinence
  • severe concomitant illness including severe psychiatric disorders
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Please refer to this study by its identifier: NCT00978211

University Hospital
Basel, BS, Switzerland, 4031
Sponsors and Collaborators
University Hospital, Basel, Switzerland
Principal Investigator: Martin A Walter, MD, Dr. Institute of Nuclear Medicine; Inselspital Bern
  More Information

Additional publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: University Hospital, Basel, Switzerland Identifier: NCT00978211     History of Changes
Other Study ID Numbers: MAW002
Study First Received: September 15, 2009
Last Updated: August 5, 2015
Health Authority: Switzerland: Federal Office of Public Health
Switzerland: Swissmedic

Keywords provided by University Hospital, Basel, Switzerland:

Additional relevant MeSH terms:
Carcinoid Tumor
Neuroendocrine Tumors
Neoplasms by Histologic Type
Neoplasms, Germ Cell and Embryonal
Neoplasms, Glandular and Epithelial
Neoplasms, Nerve Tissue
Neuroectodermal Tumors
Hormones, Hormone Substitutes, and Hormone Antagonists
Pharmacologic Actions
Physiological Effects of Drugs processed this record on October 06, 2015