ISRCTN ISRCTN11631773
DOI https://doi.org/10.1186/ISRCTN11631773
Secondary identifying numbers 08/0230
Submission date
28/11/2008
Registration date
17/12/2008
Last edited
25/01/2022
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Cancer
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English Summary

http://www.cancerhelp.org.uk/trials/a-trial-looking-treosulfan-treat-Ewings-sarcoma-come-back-after-treatment-OTIS

Study website

Contact information

Dr Maria Michelagnoli
Scientific

University College London
6th Floor Central
250 Euston Road
London
NW1 2PG
United Kingdom

Study information

Study designNon-randomised phase II study
Primary study designInterventional
Secondary study designNon randomised study
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific titleA phase II study to determine the efficacy and safety of conventional dose oral treosulfan in patients with advanced pre-treated Ewing's sarcoma
Study acronymOTIS
Study hypothesisThis is a non-randomised phase II study which aims to explore the efficacy and toxicity of oral treosulfan in patients with advanced, pre-treated Ewing's sarcoma. If conventional dose oral treosulfan is demonstrated to be active in patients with advanced Ewing's sarcoma, it is proposed that this study should be followed by a phase III prospective randomised controlled trial comparing oral etoposide (the traditional active palliation agent in solid tumours) with oral treosulfan.
Ethics approval(s)Derby 1 (Trent) and Derby 2 Research Ethics Committees, 07/08/2009, ref: 09H0405-29
ConditionEwing's sarcoma
InterventionNon-randomised phase II study of oral treosulfan in advanced pre-treated Ewing's sarcoma. Treosulfan 1 g/m^2 will be administered in three divided doses, daily over 7 days and repeated every 28 days, until disease progression, unacceptable toxicity or patient refusal.
Intervention typeDrug
Pharmaceutical study type(s)
PhasePhase II
Drug / device / biological / vaccine name(s)Treosulfan
Primary outcome measureCurrent primary outcomes measure as of 29/11/2011:
Objective response rate achieved: tumour response will be measured as defined by the RECIST guidelines.

Previous primary outcome measure:
Objective response rate achieved: tumour response will be measured as defined by the RECIST guidelines. Following analysis of data for initial 15 patients, if the measured success is less than or equal to 10% then the study will be stopped. Otherwise, the study will close once a total of 25 eligible patients have been enrolled.
Secondary outcome measuresCurrent secondary outcome measures as of 29/11/2011:
1. Event-free survival
2. Overall survival
3. Toxicity : if there is more than one toxic death, or more than two unexpected treatment related serious adverse events occurring in two separate individuals, an Independent Data Monitoring Committee meeting will take place and advice sought regarding continuing the trial
4. Duration of response
5. Time to progression/relapse

Previous secondary outcome measures:
1. Toxicity: if there is more than one toxic death, or more than two unexpected serious adverse events occurring in two separate individuals, the chief/co-investigators will consider stopping the trial
2. Duration of response
3. Time to progression
4. Correlation of deoxyribonucleic acid (DNA) cross-linking and retention with response and toxicity
Overall study start date01/03/2009
Overall study end date11/09/2012

Eligibility

Participant type(s)Patient
Age groupOther
SexBoth
Target number of participants25 patients in total
Total final enrolment21
Participant inclusion criteriaCurrent inclusion criteria as of 29/11/2011:
1. Age less than 50 years, either sex
2. Histologically proven Ewing's sarcoma/peripheral neuroectodermal tumour
3. Patients with advanced, refractory disease who have failed at least one course of conventional chemotherapy and for whom no curative option exists
4. Measurable disease, defined by Response Evaluation Criteria in Solid Tumors (RECIST)
5. Evidence of disease progression within the preceding 8 weeks
6. Neutrophils greater than or equal to 1.5 x 10^9/l and platelet count greater than or equal to 100 x 10^9/l
7. Creatinine less than or equal to 1.5 x upper limit of normal (ULN)
8. Serum bilirubin and aspartate aminotransferase (AST)/alanine aminotransferase (ALT) less than or equal to 1.5 x ULN
9. Performance status 0-2 (patients 16 years or older) or Lansky Performance Status greater than 30 (patients under 16 years). (n.b. patients with WHO performance status 3 due to spinal disease will be eligible provided they are otherwise medically well)
10. Patient able to comply with protocol treatment (swallow capsules) and follow up
11. Life expectancy of three months or greater
12. Written informed consent of patient or parent/legal guardian

Previous inclusion criteria:
9. World Health Organization (WHO) performance status greater than 3 (patients greater than 16 years); or Lansky Performance Status greater than 30
Participant exclusion criteria1. Newly diagnosed, or resectable Ewing's sarcoma
2. Pregnant/lactating women, or women of childbearing potential unless using effective contraception
3. Concurrent treatment with any other anti-cancer therapy, except palliative radiotherapy to non-target lesions
4. Concurrent treatment with other experimental drugs
5. Concurrent treatment with growth factors
Recruitment start date02/02/2010
Recruitment end date11/09/2012

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

University College London
London
NW1 2PG
United Kingdom

Sponsor information

University College London (UK)
University/education

c/o Joanna Galea-Lauri
Head of Clinical Trials
Joint UCLH and UCL Biomedical Research Unit
Ground Floor, Rosenheim Wing
25 Grafton Way
London
WC1E 5DB
England
United Kingdom

Website http://www.ucl.ac.uk/
ROR logo "ROR" https://ror.org/02jx3x895

Funders

Funder type

Charity

Adam Dealey Foundation (UK)

No information available

Medac International (UK)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing planNot provided at time of registration

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 01/01/2015 Yes No
Plain English results 28/05/2015 25/01/2022 No Yes

Editorial Notes

25/01/2022: The following changes have been made:
1. The Cancer Research UK lay results summary has been added.
2. The total final enrolment number has been added.