Final Recruitment Numbers

We are happy to share that the Add-Aspirin trial, which began in 2015, has now completed recruitment after 10 years. Thank you to all the amazing support from all participating sites, we’ve successfully recruited 10,000 patients.

A huge thank you to everyone who made this possible – especially the teams still supporting patients through their ongoing visits.

Scroll down to see the final recruitment numbers and the top recruitment sites for each cohort.

 

Final recruitment numbers by cohort

Cohorts

Total

Breast Cohort

Registered

Randomised

4301

3662

Colorectal Cohort

Registered

Randomised

2760

2332

Gastro-oesophageal Cohort

Registered

Randomised

1012

844

Prostate Cohort

Registered

Randomised

2196

1917

Total in all cohorts

10269

8755

 

Top 10 Recruiting sites (Gastro-oesophageal Cohort)

 

Site Name

Registrations overall

Randomisations overall

1

Tata Memorial Hospital, Mumbai

239

201

2

Cancer Institute (WIA)

102

90

3

Basavatarakam Indo-American Cancer Hospital & Research Institute

86

64

4

Christie Hospital

45

40

5

University Hospital Coventry and Warwickshire

43

36

6

Cachar Cancer Hospital and Research Centre, Silchar

41

33

7

JIPMER, Pondicherry

37

33

8

St James University Hospital

28

24

9

Churchill Hospital

22

16

10

Bristol Haematology & Oncology Centre

19

17

 

Top 10 Recruiting sites (Breast Cohort)

 

Site Name

Registrations overall

Randomisations overall

1

Tata Memorial Hospital, Mumbai

252

187

2

Western General Hospital, Edinburgh

123

108

3

Worcestershire Royal Hospital, Worcester

104

88

4

Churchill Hospital, Oxford

89

70

5

Royal Marsden Hospital (Sutton), Sutton

86

74

6

University Hospital Coventry and Warwickshire, Coventry

81

66

7

Raigmore Hospital

80

59

8

Royal Lancaster Infirmary, Lancaster

80

72

9

Addenbrooke's Hospital, Cambridge

76

64

10

Royal Shrewsbury Hospital, Shrewsbury

70

59

 

Top 10 Recruiting sites (Colorectal Cohort)

 

Site Name

Registrations overall

Randomisations overall

1

Western General Hospital, Edinburgh

94

83

2

Tata Memorial Hospital, Mumbai

80

62

3

St James University Hospital (Leeds), Leeds

73

58

4

Bristol Haematology & Oncology Centre, Bristol

66

57

5

George Eliot Hospital, Nuneaton

64

53

6

Velindre Hospital, Cardiff

61

50

7

Southampton General Hospital

57

51

8

Royal Marsden Hospital (Sutton), Sutton

56

50

9

Victoria Hospital (Blackpool), Blackpool

55

50

10

Victoria Hospital (Kirkcaldy), Kirkcaldy

51

47

 

Top 10 Recruiting sites (Prostate Cohort)

 

Site Name

Registrations overall

Randomisations overall

1

University Hospital Coventry and Warwickshire, Coventry

177

162

2

Darent Valley Hospital, Dartford

96

83

3

University Hospital of Wales, Cardiff

87

79

4

Queen Elizabeth Hospital, King's Lynn

69

59

5

Bradford Royal Infirmary, Bradford

64

59

6

Worcestershire Royal Hospital, Worcester

62

57

7

Royal Preston Hospital , Preston

60

52

8

Leicester General Hospital, Leicester

60

59

9

Raigmore Hospital

58

43

10

Bristol Haematology & Oncology Centre, Bristol

54

45

Contact Details

If you are an individual who is interested in taking part in Add-Aspirin, please talk to your doctor who will be able to consider whether you are suitable for the trial.

For healthcare professionals

Please log into the members area for Add-Aspirin contact details.

Register Interest

For healthcare professionals

If your centre would like to recruit participants to Add-Aspirin, contact us:
mrcctu.add-aspirin@ucl.ac.uk

Register a participant

From Monday 16th March 2020, to RANDOMISE a participant in the UK please call +44 (0)20 7670 4925, rather than the usual randomisation line.

To RANDOMISE a participant from Republic of Ireland or India only, please use the 'Register a participant' link above to randomise online. Please make sure to press 'Randomise' once logged in to the server.

Unblind a participant in the UK

Unblind a participant in the RoI

Unblind a participant in India