PPALM - Palm oil and Pentoxifylline Against Late Morbidity

ISRCTN ISRCTN17415294
DOI https://doi.org/10.1186/ISRCTN17415294
EudraCT/CTIS number 2012-004211-31
ClinicalTrials.gov number NCT02230800
Secondary identifying numbers 17979
Submission date
08/01/2015
Registration date
12/01/2015
Last edited
12/08/2022
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.cancerresearchuk.org/about-cancer/find-a-clinical-trial/a-trial-looking-at-treatment-to-relieve-the-side-effects-of-radiotherapy-to-the-pelvis-ppalm

Contact information

Mrs Lone Gothard
Scientific

Royal Marsden Hospital
Academic Radiotherapy Department
Downs Road
Sutton
SM2 5PT
United Kingdom

Study information

Study designRandomised; Interventional
Primary study designInterventional
Secondary study designRandomised controlled trial
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 titleRandomised double-blind controlled phase II trial of Tocovid SupraBio in combination with pentoxifylline (PTX) in patients suffering long-term adverse effects of radiotherapy for pelvic cancer
Study acronymPPALM
Study hypothesisAim: To test the benefits of oral Tocovid SupraBio (tocotrienols) with pentoxifylline (PTX) in patients suffering chronic gastrointestinal adverse effects following curative pelvic radiotherapy for cancer.
Ethics approval(s)NRES Committee London-Central, 20/08/2014, ref: 14/LO/1122
ConditionTopic: Cancer; Subtopic: Colorectal Cancer, Bladder Cancer, Gynaecological Cancer, Prostate Cancer; Disease: Bladder (advanced), Bladder (superficial), Cervix, Ovary/Fallopian tube, Prostate, Rectum, Testis, Uterus/Endometrium, Vagina
InterventionRandomisation: Treatment allocation will be in a 2:1 ratio of Tocovid SupraBio+PTX:Matched placebo and will be based on computer generated random permuted blocks.

Placebos, Matching placebos bd for 12 months; Tocovid SupraBio, 200mg po bd plus pentoxifylline (PTX) 400mg po bd for 12 months; Follow Up Length: 12 month(s)
Intervention typeDrug
Pharmaceutical study type(s)
PhasePhase II
Drug / device / biological / vaccine name(s)1. Tocovid SupraBio 2. Pentoxifylline
Primary outcome measure1. Change at 12 months in the bowel disease subset of the Modified IBDQ Quality of Life questionnaire
Secondary outcome measures1. Change at 12 months in rectal IBDQ bleeding score between the two groups in those patients presenting with grade 2, 3 or 4 bleeding
2. Change at 12 months in IBDQ faecal incontinence score between the two groups in those patients presenting with grade 1 or greater incontinence
3. Proportion of items graded as marked or severe (grade 3 or 4)
4. Physician assessment of rectal dysfunction based on the modified CTCAE Version 4 grading
5. Patient self-assessments: QLQ-C30 and CR29 and the Gastrointestinal Symptom Rating Scale
6. Photographic assessment of rectal mucosa
7. Serum fibrosis marker levels
Overall study start date26/07/2012
Overall study end date20/12/2019

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participantsPlanned Sample Size: 117; UK Sample Size: 117; Description: 99 patients will provide 85% power to detect a difference in Modified Inflammatory Bowel Disease Questionnaire bowel subset score of 7.5, which is considered a worthwhile improvement in response to 12 months of Tocovid SupraBio+PTX compared to placebo. 117 patients will be recruited to allow for a 15% drop out rate.
Total final enrolment62
Participant inclusion criteria1. Age over 18 years.
2. Past history of a malignant pelvic neoplasm (T14 N02 M0) of the rectum, prostate, testis, bladder, uterine cervix, uterus, vagina, anal canal or ovary.
3. A minimum 12 months followup postradiotherapy (24 months for patients with past history of stage T4 and/or N2 disease)
4. A maximum 7 years postradiotherapy
5. No evidence of cancer recurrence
6. Gastrointestinal symptoms attributable to prior radiotherapy: grade 2 or higher in any CTCAE Version 4 category, or grade 1 with difficult intermittent symptoms
7. Symptoms are not relieved by appropriate lifestyle advice and medication over a 3 month period
8. Physical and psychological fitness for Tocovid SupraBio+PTX therapy
9. Written informed consent and availability for follow up
10. Willingness to keep to a specified level of dietary fat intake during the study
11. Symptoms are not relieved by appropriate life-style advice and medication over a 3-month period after optimal gastroenterological assessment
Participant exclusion criteria1. Surgery for rectal cancer
2. Contraindication or other inability to undergo magnetic resonance imaging, if required to rule out malignancy
3. Dietary supplementation containing alphatocopherol above a daily dose of 30mg at any time during the last three months
4. Medication with pentoxifylline at any time since radiotherapy
5. Pregnancy or breast feeding
6. Ischaemic heart disease, uncontrolled hypertension, hypotension, acute myocardial infarction, cerebral haemorrhage, retinal haemorrhage, renal failure, liver failure and medication with insulin, ketorolac or vitamin K
7. Allergy to soya
8. Known hypersensitivity to the active constituent, pentoxifylline other methyl xanthines or any of the excipients’, as per SmPC for pentoxifylline
Recruitment start date25/11/2014
Recruitment end date05/01/2017

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

Royal Marsden Hospital
Academic Radiotherapy Department
Downs Road
Sutton
SM2 5PT
United Kingdom

Sponsor information

Royal Marsden NHS Foundation Trust
Hospital/treatment centre

Fulham Road
London
SW3 6JJ
England
United Kingdom

ROR logo "ROR" https://ror.org/0008wzh48

Funders

Funder type

Government

Malaysian Palm Oil Board (Malaysia)

No information available

Results and Publications

Intention to publish date31/12/2020
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planTo be confirmed at a later date
IPD sharing planThe datasets generated and/or analysed are available on request from the PPALM trial PI, Dr Alexandra Taylor (Alexandra.taylor@rmh.nhs.uk), via completion of a data access request form after such time that the primary analysis publication and any other key analyses have been completed.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Basic results 12/12/2020 10/01/2022 No No
Results article 01/03/2022 11/02/2022 Yes No
Protocol file version 6.0 26/06/2017 12/08/2022 No No
HRA research summary 26/07/2023 No No

Additional files

30159 PPALM Protocol_v6.0_26Jun2017.pdf

Editorial Notes

12/08/2022: Uploaded protocol (not peer-reviewed) as an additional file.
11/02/2022: The following changes have been made:
1. Publication reference added.
2. The final enrolment number has been added from the reference.
14/01/2022: The IPD sharing statement has been added and the IPD sharing summary updated accordingly.
10/01/2022: The EudraCT basic results link has been added.
05/10/2020: The overall end date was changed from 30/09/2019 to 20/12/2019.
12/06/2020: The intention to publish date was changed from 31/12/2019 to 31/12/2020.
23/07/2019: The following changes were made to the trial record:
1. ClinicalTrials.gov number added.
2. The overall end date was changed from 05/01/2019 to 30/09/2019.
3. The intention to publish date was added.