Condition category
Date applied
Date assigned
Last edited
Prospectively registered
Overall trial status
Recruitment status
Publication status

Contact information



Primary contact

Mr Colin Lunt


Contact details

Clinical Trials Co-ordination Unit
The Christie NHS Foundation Trust
Wilmslow Road
M20 4BX
United Kingdom
+44 (0)161 918 7492

Additional identifiers

EudraCT number number


Protocol/serial number


Study information

Scientific title

A phase III randomised trial of prophylactic irradiation of tracts in patients with malignant pleural mesothelioma following invasive chest wall intervention



Study hypothesis

The PIT (Prophylactic Irradiation of Tracts) trial will determine the efficacy, as assessed by the incidence of chest wall metastasis, of PIT following invasive chest wall intervention in malignant pleural mesothelioma compared to no prophylactic radiotherapy.

Patients will be randomised on a 1:1 basis to receive PIT or No PIT. The trial is a phase III multi-centre trial that aims to recruit 374 patients across the UK.

After randomisation PIT patients will receive 21 Gy over 3 fractions. All patients will be followed up for a total of 52 weeks with regular clinic visits and then followed up over the phone.

The primary endpoint is Incidence of chest wall tract metastasis 6 months from randomisation. The secondary endpoints are: time from randomisation to chest wall metastasis; position of metastasis in relation to radiation field for PIT patients; acute and late skin toxicity for PIT patients; and pain from chest wall metastasis evaluated using the Visual Analogue Scale (VAS) pain score

Ethics approval

Greater Manchester West Ethics Committee, 04/04/2012, ref: 12/NW/0249

Study design

Randomised interventional prevention trial

Primary study design


Secondary study design

Randomised controlled trial

Trial setting


Trial type


Patient information sheet

Not available in web format, please use the contact details to request a patient information sheet


Lung Cancer, Mesothelioma


Patients who meet the eligibility criteria will be randomised to PIT or No PIT. The PIT patients will receive radiotherapy at 21 Gy in 3 fractions to the intervention (surgery) site. Chemotherapy on both arms is optional. Follow up is for 2 years on both arms (or until chest wall recurrence or death) and includes regular telephone follow up and for the first year patients coming in to the hospital regularly as outpatients.

Intervention type



Phase III

Drug names

Primary outcome measure

Efficacy as assessed by the incidence of chest wall metastasis

Secondary outcome measures

1. Toxicity of PIT
2. Time to chest wall metastasis in patients undergoing PIT as compared to no radiotherapy
3. Pain from chest wall metastasis

Overall trial start date


Overall trial end date


Reason abandoned (if study stopped)


Participant inclusion criteria

1. Either sex, age = 18 year
2. Diagnosis of mesothelioma by MDT
3. All histological subtypes. Where the histological diagnosis is unclear, a specialist thoracic pathologist should be consulted.
4. ECOG performance status 0-2.
5. Inoperable disease or operable disease in patients unsuitable for surgery as decided by a MDT.
6. Chest wall intervention with video-assisted thoracoscopy (VATS), open surgical biopsy, local anaesthetic thoracoscopy or chest drain.
7. Able to start radiotherapy within 42 days (6 weeks) from most recent chest wall intervention.
8. Chest wall intervention scar visible at time of randomisation.
9. No indwelling pleural catheters in-situ at the intervention site
10. RT target volume acceptable by the local radiotherapist.
11. No previous open thoracotomy.
12. No previous radiotherapy to the region of the chest wall intervention site.
13. Not currently receiving chemotherapy and not received chemotherapy for mesothelioma before randomisation
14. No other previous or concomitant illness or treatment which in the opinion of the clinician will interfere with the trial treatments or comparisons.
15. Patients enrolled on other clinical trials could be considered after discussion with the chief investigators.
16. Female patients must satisfy the investigator that they are not pregnant, or are not of childbearing potential, or are using adequate contraception.
17. Patients must not be breastfeeding
18. Absence of any psychological, familial, sociological or geographical condition potentially hampering compliance with the trial protocol and follow-up schedule; those conditions should be discussed with the patient before registration in the trial
19. Before patient registration/randomisation, written informed consent must be given according to ICH/GCP, and national/local regulations.
20. Patients can only be randomised in this trial once.

Participant type


Age group




Target number of participants

Planned Sample Size: 374; UK Sample Size: 374

Participant exclusion criteria

1. Patients who underwent a thoracotomy (as large thoracotomy scars may not be adequately covered by this radiotherapy technique)
2. Previous radiotherapy to the region of the chest wall intervention site
3. Patients currently receiving chemotherapy

Recruitment start date


Recruitment end date



Countries of recruitment

United Kingdom

Trial participating centre

The Christie NHS Foundation Trust
M20 4BX
United Kingdom

Sponsor information


Christie Hospital NHS Foundation Trust (UK)

Sponsor details

550 Wilmslow Road
M20 4BX
United Kingdom

Sponsor type

Hospital/treatment centre



Funder type


Funder name

Research for Patient Benefit Programme

Alternative name(s)

NIHR Research for Patient Benefit Programme, RfPB

Funding Body Type

government organisation

Funding Body Subtype

National government


United Kingdom

Results and Publications

Publication and dissemination plan

Not provided at time of registration

Intention to publish date


Participant level data

Not provided at time of registration

Basic results (scientific)

Publication list

2016 protocol in:

Publication citations

Additional files

Editorial Notes

21/06/2019: stated that this trial was terminated. 11/12/2018: No publications found, verifying study status with principal investigator. 29/01/2016: Publication reference added.