NCT01182753

Brief Summary

The study is a prospective randomised clinical phase III trial. Proton therapy is the gold standard in the treatment of low and intermediate grad chondrosarcomas of the skull base. However, high-LET beams such as carbon ions theoretically offer biologic advantages by enhanced biologic effectiveness in slow-growing tumors. Up until now it was impossible to compare two different particle therapies, i.e. proton and carbon ion therapy directly with each other. The aim of this study is to find out, whether the biological advantages of carbon ion therapy mentioned above can also be clinically confirmed.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
154

participants targeted

Target at P25-P50 for phase_3

Timeline
Completed

Started Aug 2010

Longer than P75 for phase_3

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 1, 2010

Completed
11 days until next milestone

First Submitted

Initial submission to the registry

August 12, 2010

Completed
5 days until next milestone

First Posted

Study publicly available on registry

August 17, 2010

Completed
12 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2022

Completed
Last Updated

August 17, 2010

Status Verified

August 1, 2010

Enrollment Period

12 years

First QC Date

August 12, 2010

Last Update Submit

August 16, 2010

Conditions

Keywords

ChondrosarcomaRadiationcarbon ion

Outcome Measures

Primary Outcomes (1)

  • Local-Progression Free Survival (LPFS)

    The primary objective of this study is to evaluate, if the innovative carbon ion therapy in chondrosarcomas is not relevantly inferior to the standard proton treatment with respect to the 5 year LPFS rate defined as time from the randomisation to observed local reccurrence. It is assumed that the LPFS rate for the proton therapy is 90%.

    5 years

Secondary Outcomes (3)

  • Survival

    12 years

  • Toxicity

    12 years

  • Patterns of recurrence and local control rate

    5 years

Study Arms (2)

A

EXPERIMENTAL

Arm A (carbon ion therapy): Total dose to the PTV2 - 45 Gy E in 3 Gy E /d, 4 - 6 days a week, 15 fractions Total dose to the PTV1 - 60 Gy E ± 5%, further 4 - 6 fractions a 3 Gy E.

Radiation: carbon ion therapy

B

ACTIVE COMPARATOR

Arm B (proton therapy): Total dose to the PTV2 - 50 to 56 Gy E in 2 Gy E /d, 4 - 6 days a week, 25 - 28 fractions Total dose to the PTV1 - 70 Gy E ± 5%, further 6 - 10 fractions a 2 Gy E.

Radiation: proton therapy

Interventions

Arm A (carbon ion therapy): Total dose to the PTV2 - 45 Gy E in 3 Gy E /d, 4 - 6 days a week, 15 fractions Total dose to the PTV1 - 60 Gy E ± 5%, further 4 - 6 fractions a 3 Gy E.

A

Arm B (proton therapy): Total dose to the PTV2 - 50 to 56 Gy E in 2 Gy E /d, 4 - 6 days a week, 25 - 28 fractions Total dose to the PTV1 - 70 Gy E ± 5%, further 6 - 10 fractions a 2 Gy E.

B

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Karnofsky Performance Score ≥60%
  • Age \>18 years and \<80 years
  • Informed consent signed by the patient
  • Histological confirmation of low/ intermediate grade chondrosarcoma with infiltration of the skull base.

You may not qualify if:

  • Inability to understand the aims of the study, no informed consent
  • Prior RT of skull base region
  • Other malignancies with disease-free interval \< 5 years (excepting pre-cancerous lesions)
  • Participation in another trial
  • Pregnancy
  • Simultaneous CHT or Immunotherapy.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Heidelberg

Heidelberg, Im Neuenheimer Feld 400, 69120, Germany

RECRUITING

Related Publications (7)

  • Schulz-Ertner D, Nikoghosyan A, Hof H, Didinger B, Combs SE, Jakel O, Karger CP, Edler L, Debus J. Carbon ion radiotherapy of skull base chondrosarcomas. Int J Radiat Oncol Biol Phys. 2007 Jan 1;67(1):171-7. doi: 10.1016/j.ijrobp.2006.08.027. Epub 2006 Oct 23.

    PMID: 17056193BACKGROUND
  • Munzenrider JE, Liebsch NJ. Proton therapy for tumors of the skull base. Strahlenther Onkol. 1999 Jun;175 Suppl 2:57-63. doi: 10.1007/BF03038890.

    PMID: 10394399BACKGROUND
  • Ares C, Hug EB, Lomax AJ, Bolsi A, Timmermann B, Rutz HP, Schuller JC, Pedroni E, Goitein G. Effectiveness and safety of spot scanning proton radiation therapy for chordomas and chondrosarcomas of the skull base: first long-term report. Int J Radiat Oncol Biol Phys. 2009 Nov 15;75(4):1111-8. doi: 10.1016/j.ijrobp.2008.12.055. Epub 2009 Apr 20.

    PMID: 19386442BACKGROUND
  • Hug EB, Slater JD. Proton radiation therapy for chordomas and chondrosarcomas of the skull base. Neurosurg Clin N Am. 2000 Oct;11(4):627-38.

    PMID: 11082173BACKGROUND
  • Hug EB, Loredo LN, Slater JD, DeVries A, Grove RI, Schaefer RA, Rosenberg AE, Slater JM. Proton radiation therapy for chordomas and chondrosarcomas of the skull base. J Neurosurg. 1999 Sep;91(3):432-9. doi: 10.3171/jns.1999.91.3.0432.

    PMID: 10470818BACKGROUND
  • Weber DC, Rutz HP, Pedroni ES, Bolsi A, Timmermann B, Verwey J, Lomax AJ, Goitein G. Results of spot-scanning proton radiation therapy for chordoma and chondrosarcoma of the skull base: the Paul Scherrer Institut experience. Int J Radiat Oncol Biol Phys. 2005 Oct 1;63(2):401-9. doi: 10.1016/j.ijrobp.2005.02.023.

    PMID: 16168833BACKGROUND
  • Nikoghosyan AV, Rauch G, Munter MW, Jensen AD, Combs SE, Kieser M, Debus J. Randomised trial of proton vs. carbon ion radiation therapy in patients with low and intermediate grade chondrosarcoma of the skull base, clinical phase III study. BMC Cancer. 2010 Nov 5;10:606. doi: 10.1186/1471-2407-10-606.

MeSH Terms

Conditions

Chondrosarcoma

Interventions

Heavy Ion RadiotherapyProton Therapy

Condition Hierarchy (Ancestors)

Neoplasms, Connective TissueNeoplasms, Connective and Soft TissueNeoplasms by Histologic TypeNeoplasmsSarcoma

Intervention Hierarchy (Ancestors)

RadiotherapyTherapeutics

Study Officials

  • Juergen Debus, MD PhD

    Heidelberg University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER

Study Record Dates

First Submitted

August 12, 2010

First Posted

August 17, 2010

Study Start

August 1, 2010

Primary Completion

August 1, 2022

Study Completion

August 1, 2022

Last Updated

August 17, 2010

Record last verified: 2010-08

Locations