NCT00261456

Brief Summary

The IMPACT study is an international targeted prostate screening study of men at increased prostate cancer risk due to the presence of known pathogenic mutations in BRCA1 and BRCA2 genes and Mis-Match Repair genes (MLH1, MSH6, MSH2). There are only approximately 150 men with a known BRCA1 or BRCA2 mutation in the UK. Research has shown that these men are at an increased risk of developing prostate cancer but more information is needed about the pathogenesis of prostate cancer in this defined group and the role of screening in these men. The study will offer annual PSA screening to these men to determine the incidence of prostate cancer in this group. The study will also look at new markers of early prostate cancer in this cohort. The power calculations for this study are 850 carriers and 850 controls (age-matched men without BRCA1/2. Mis match repair mutations). It is therefore essential to gain international collaboration to meet the target of recruiting 850 men with these known mutations and a control group of 850 men who have tested negative for a known familial mutation.

Trial Health

75
On Track

Trial Health Score

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

Enrollment
3,500

participants targeted

Target at P75+ for all trials

Timeline
46mo left

Started Mar 2005

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
active not recruiting

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 Progress85%
Mar 2005Mar 2030

Study Start

First participant enrolled

March 1, 2005

Completed
9 months until next milestone

First Submitted

Initial submission to the registry

December 1, 2005

Completed
4 days until next milestone

First Posted

Study publicly available on registry

December 5, 2005

Completed
24.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 28, 2030

Expected
1 day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2030

Last Updated

September 26, 2025

Status Verified

September 1, 2025

Enrollment Period

25 years

First QC Date

December 1, 2005

Last Update Submit

September 25, 2025

Conditions

Keywords

Prostate cancerBRCA1BRCA2prostate screeningPSAprostate biopsyLynch SyndromeMismatch Repair GenesMLH1MSH2MSH6

Outcome Measures

Primary Outcomes (2)

  • Primary Endpoint (BRCA)

    To determine the yearly incidence of screen-detected prostate cancer in BRCA1 and BRCA2 mutation carriers compared with the control population (predictive test negative for a known familial BRCA1/2 gene mutation). "

    Through study completion, a minimum of 10 years follow up in participants.

  • Primary Endpoint (Mismatch Repair/Lynch Cohort)

    To determine the yearly incidence of screen-detected prostate cancer in mismatch repair gene mutation carriers compared with the control population (predictive test negative for a known familial MMR gene mutation).

    Through study completion, a minimum of 10 years follow up in participants.

Secondary Outcomes (4)

  • PSA threshold for prostate cancer detection

    Through study completion, a minimum of 10 years follow up in participants.

  • Positive Predictive value of PSA level for prostate cancer detection

    Through study completion, a minimum of 10 years follow up in participants.

  • Cancer Pathology (BRCA)

    Through study completion, a minimum of 10 years follow up in participants.

  • Cancer Pathology (Mismatch Repair/Lynch Cohort)

    Through study completion, a minimum of 10 years follow up in participants.

Study Arms (4)

BRCA1/2 carriers

Carriers of a BRCA1 or BRCA2 mutation.

Diagnostic Test: PSA testProcedure: Prostate Biopsy

BRCA1/2 non Carriers

Do not carry a mutation in either the BRCA1 or 2 genes that has been found in other members of the family.

Diagnostic Test: PSA testProcedure: Prostate Biopsy

Mismatch Repair gene mutation carriers

Carriers of a MSH2, MSH6 or MLH1 mutation.

Diagnostic Test: PSA testProcedure: Prostate Biopsy

Mismatch Repair gene mutation non-carriers

Do not carry a mutation in either the MLH1, MSH2 or MSH6 genes that has been found in other members of the family.

Diagnostic Test: PSA testProcedure: Prostate Biopsy

Interventions

PSA testDIAGNOSTIC_TEST

Patients tested for their level of Prostate Specific Antigen.

BRCA1/2 carriersBRCA1/2 non CarriersMismatch Repair gene mutation carriersMismatch Repair gene mutation non-carriers

A Prostate biopsy is given as an option to the patient if their PSA level is raised or at the end of 5 years screening.

BRCA1/2 carriersBRCA1/2 non CarriersMismatch Repair gene mutation carriersMismatch Repair gene mutation non-carriers

Eligibility Criteria

Age40 Years - 69 Years
Sexmale(Gender-based eligibility)
Gender Eligibility DetailsPerson must have a prostate.
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Any patient that meets the eligibility criteria and maybe attending a genetics clinic at a number of international centres that have gone through ethical approval.

You may qualify if:

  • Male carriers of a known pathogenic BRCA1/2 or Mismatch Repair gene mutations (MSH2, MSH6, MLH1) or men testing negative for a known BRCA1/2/ Mismatch repair mutation (MSH2, MSH6, MLH1) in their family
  • Aged between 40-69 years old
  • WHO performance status 0-2
  • No previous history of prostate cancer
  • No previous prostate biopsy for raised PSA
  • Absence of any psychological, familial, sociological or geographical situation potentially hampering compliance with the study protocol and follow-up schedule
  • Fully informed, written consent according to ICH/EU GCP and national/local regulations before subject registration.

You may not qualify if:

  • Previous cancer with terminal prognosis of less than 5 years
  • Previous prostate cancer

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Cancer Genetics Unit, Royal Marsden Hospital

Sutton, Surrey, SM2 5PT, United Kingdom

Location

Related Publications (14)

  • Tischkowitz M, Eeles R; IMPACT study: Identification of Men with genetic predisposition to Prostate Cancer and its Clinical Treatment collaborators. Mutations in BRCA1 and BRCA2 and predisposition to prostate cancer. Lancet. 2003 Jul 5;362(9377):80; author reply 80. doi: 10.1016/S0140-6736(03)13823-8. No abstract available.

    PMID: 12853213BACKGROUND
  • Cremers RG, Eeles RA, Bancroft EK, Ringelberg-Borsboom J, Vasen HF, Van Asperen CJ; IMPACT Steering Committee; Schalken JA, Verhaegh GW, Kiemeney LA. The role of the prostate cancer gene 3 urine test in addition to serum prostate-specific antigen level in prostate cancer screening among breast cancer, early-onset gene mutation carriers. Urol Oncol. 2015 May;33(5):202.e19-28. doi: 10.1016/j.urolonc.2015.01.018. Epub 2015 Mar 5.

    PMID: 25746941BACKGROUND
  • Killick E, Morgan R, Launchbury F, Bancroft E, Page E, Castro E, Kote-Jarai Z, Aprikian A, Blanco I, Clowes V, Domchek S, Douglas F, Eccles D, Evans DG, Harris M, Kirk J, Lam J, Lindeman G, Mitchell G, Pachter N, Selkirk C, Tucker K, Zgajnar J, Eeles R, Pandha H. Role of Engrailed-2 (EN2) as a prostate cancer detection biomarker in genetically high risk men. Sci Rep. 2013;3:2059. doi: 10.1038/srep02059.

    PMID: 23792811BACKGROUND
  • Whitaker HC, Kote-Jarai Z, Ross-Adams H, Warren AY, Burge J, George A, Bancroft E, Jhavar S, Leongamornlert D, Tymrakiewicz M, Saunders E, Page E, Mitra A, Mitchell G, Lindeman GJ, Evans DG, Blanco I, Mercer C, Rubinstein WS, Clowes V, Douglas F, Hodgson S, Walker L, Donaldson A, Izatt L, Dorkins H, Male A, Tucker K, Stapleton A, Lam J, Kirk J, Lilja H, Easton D; IMPACT Study Steering Committee; IMPACT Study Collaborators; UK GPCS Collaborators; Cooper C, Eeles R, Neal DE. The rs10993994 risk allele for prostate cancer results in clinically relevant changes in microseminoprotein-beta expression in tissue and urine. PLoS One. 2010 Oct 13;5(10):e13363. doi: 10.1371/journal.pone.0013363.

    PMID: 20967219BACKGROUND
  • Mikropoulos C, Selkirk CGH, Saya S, Bancroft E, Vertosick E, Dadaev T, Brendler C, Page E, Dias A, Evans DG, Rothwell J, Maehle L, Axcrona K, Richardson K, Eccles D, Jensen T, Osther PJ, van Asperen CJ, Vasen H, Kiemeney LA, Ringelberg J, Cybulski C, Wokolorczyk D, Hart R, Glover W, Lam J, Taylor L, Salinas M, Feliubadalo L, Oldenburg R, Cremers R, Verhaegh G, van Zelst-Stams WA, Oosterwijk JC, Cook J, Rosario DJ, Buys SS, Conner T, Domchek S, Powers J, Ausems MG, Teixeira MR, Maia S, Izatt L, Schmutzler R, Rhiem K, Foulkes WD, Boshari T, Davidson R, Ruijs M, Helderman-van den Enden AT, Andrews L, Walker L, Snape K, Henderson A, Jobson I, Lindeman GJ, Liljegren A, Harris M, Adank MA, Kirk J, Taylor A, Susman R, Chen-Shtoyerman R, Pachter N, Spigelman A, Side L, Zgajnar J, Mora J, Brewer C, Gadea N, Brady AF, Gallagher D, van Os T, Donaldson A, Stefansdottir V, Barwell J, James PA, Murphy D, Friedman E, Nicolai N, Greenhalgh L, Obeid E, Murthy V, Copakova L, McGrath J, Teo SH, Strom S, Kast K, Leongamornlert DA, Chamberlain A, Pope J, Newlin AC, Aaronson N, Ardern-Jones A, Bangma C, Castro E, Dearnaley D, Eyfjord J, Falconer A, Foster CS, Gronberg H, Hamdy FC, Johannsson O, Khoo V, Lubinski J, Grindedal EM, McKinley J, Shackleton K, Mitra AV, Moynihan C, Rennert G, Suri M, Tricker K; IMPACT study collaborators; Moss S, Kote-Jarai Z, Vickers A, Lilja H, Helfand BT, Eeles RA. Prostate-specific antigen velocity in a prospective prostate cancer screening study of men with genetic predisposition. Br J Cancer. 2018 Jan;118(2):266-276. doi: 10.1038/bjc.2017.429. Epub 2018 Jan 4.

    PMID: 29301143BACKGROUND
  • Moynihan C, Bancroft EK, Mitra A, Ardern-Jones A, Castro E, Page EC, Eeles RA. Ambiguity in a masculine world: Being a BRCA1/2 mutation carrier and a man with prostate cancer. Psychooncology. 2017 Nov;26(11):1987-1993. doi: 10.1002/pon.4530. Epub 2017 Sep 18.

    PMID: 28812325BACKGROUND
  • Mitra AV, Bancroft EK, Barbachano Y, Page EC, Foster CS, Jameson C, Mitchell G, Lindeman GJ, Stapleton A, Suthers G, Evans DG, Cruger D, Blanco I, Mercer C, Kirk J, Maehle L, Hodgson S, Walker L, Izatt L, Douglas F, Tucker K, Dorkins H, Clowes V, Male A, Donaldson A, Brewer C, Doherty R, Bulman B, Osther PJ, Salinas M, Eccles D, Axcrona K, Jobson I, Newcombe B, Cybulski C, Rubinstein WS, Buys S, Townshend S, Friedman E, Domchek S, Ramon Y Cajal T, Spigelman A, Teo SH, Nicolai N, Aaronson N, Ardern-Jones A, Bangma C, Dearnaley D, Eyfjord J, Falconer A, Gronberg H, Hamdy F, Johannsson O, Khoo V, Kote-Jarai Z, Lilja H, Lubinski J, Melia J, Moynihan C, Peock S, Rennert G, Schroder F, Sibley P, Suri M, Wilson P, Bignon YJ, Strom S, Tischkowitz M, Liljegren A, Ilencikova D, Abele A, Kyriacou K, van Asperen C, Kiemeney L; IMPACT Study Collaborators; Easton DF, Eeles RA. Targeted prostate cancer screening in men with mutations in BRCA1 and BRCA2 detects aggressive prostate cancer: preliminary analysis of the results of the IMPACT study. BJU Int. 2011 Jan;107(1):28-39. doi: 10.1111/j.1464-410X.2010.09648.x. Epub 2010 Sep 14.

  • Bancroft EK, Page EC, Castro E, Lilja H, Vickers A, Sjoberg D, Assel M, Foster CS, Mitchell G, Drew K, Maehle L, Axcrona K, Evans DG, Bulman B, Eccles D, McBride D, van Asperen C, Vasen H, Kiemeney LA, Ringelberg J, Cybulski C, Wokolorczyk D, Selkirk C, Hulick PJ, Bojesen A, Skytte AB, Lam J, Taylor L, Oldenburg R, Cremers R, Verhaegh G, van Zelst-Stams WA, Oosterwijk JC, Blanco I, Salinas M, Cook J, Rosario DJ, Buys S, Conner T, Ausems MG, Ong KR, Hoffman J, Domchek S, Powers J, Teixeira MR, Maia S, Foulkes WD, Taherian N, Ruijs M, Helderman-van den Enden AT, Izatt L, Davidson R, Adank MA, Walker L, Schmutzler R, Tucker K, Kirk J, Hodgson S, Harris M, Douglas F, Lindeman GJ, Zgajnar J, Tischkowitz M, Clowes VE, Susman R, Ramon y Cajal T, Patcher N, Gadea N, Spigelman A, van Os T, Liljegren A, Side L, Brewer C, Brady AF, Donaldson A, Stefansdottir V, Friedman E, Chen-Shtoyerman R, Amor DJ, Copakova L, Barwell J, Giri VN, Murthy V, Nicolai N, Teo SH, Greenhalgh L, Strom S, Henderson A, McGrath J, Gallagher D, Aaronson N, Ardern-Jones A, Bangma C, Dearnaley D, Costello P, Eyfjord J, Rothwell J, Falconer A, Gronberg H, Hamdy FC, Johannsson O, Khoo V, Kote-Jarai Z, Lubinski J, Axcrona U, Melia J, McKinley J, Mitra AV, Moynihan C, Rennert G, Suri M, Wilson P, Killick E; IMPACT Collaborators; Moss S, Eeles RA. Targeted prostate cancer screening in BRCA1 and BRCA2 mutation carriers: results from the initial screening round of the IMPACT study. Eur Urol. 2014 Sep;66(3):489-99. doi: 10.1016/j.eururo.2014.01.003. Epub 2014 Jan 15.

  • Page EC, Bancroft EK, Brook MN, Assel M, Hassan Al Battat M, Thomas S, Taylor N, Chamberlain A, Pope J, Raghallaigh HN, Evans DG, Rothwell J, Maehle L, Grindedal EM, James P, Mascarenhas L, McKinley J, Side L, Thomas T, van Asperen C, Vasen H, Kiemeney LA, Ringelberg J, Jensen TD, Osther PJS, Helfand BT, Genova E, Oldenburg RA, Cybulski C, Wokolorczyk D, Ong KR, Huber C, Lam J, Taylor L, Salinas M, Feliubadalo L, Oosterwijk JC, van Zelst-Stams W, Cook J, Rosario DJ, Domchek S, Powers J, Buys S, O'Toole K, Ausems MGEM, Schmutzler RK, Rhiem K, Izatt L, Tripathi V, Teixeira MR, Cardoso M, Foulkes WD, Aprikian A, van Randeraad H, Davidson R, Longmuir M, Ruijs MWG, Helderman van den Enden ATJM, Adank M, Williams R, Andrews L, Murphy DG, Halliday D, Walker L, Liljegren A, Carlsson S, Azzabi A, Jobson I, Morton C, Shackleton K, Snape K, Hanson H, Harris M, Tischkowitz M, Taylor A, Kirk J, Susman R, Chen-Shtoyerman R, Spigelman A, Pachter N, Ahmed M, Ramon Y Cajal T, Zgajnar J, Brewer C, Gadea N, Brady AF, van Os T, Gallagher D, Johannsson O, Donaldson A, Barwell J, Nicolai N, Friedman E, Obeid E, Greenhalgh L, Murthy V, Copakova L, Saya S, McGrath J, Cooke P, Ronlund K, Richardson K, Henderson A, Teo SH, Arun B, Kast K, Dias A, Aaronson NK, Ardern-Jones A, Bangma CH, Castro E, Dearnaley D, Eccles DM, Tricker K, Eyfjord J, Falconer A, Foster C, Gronberg H, Hamdy FC, Stefansdottir V, Khoo V, Lindeman GJ, Lubinski J, Axcrona K, Mikropoulos C, Mitra A, Moynihan C, Rennert G, Suri M, Wilson P, Dudderidge T; IMPACT Study Collaborators; Offman J, Kote-Jarai Z, Vickers A, Lilja H, Eeles RA. Interim Results from the IMPACT Study: Evidence for Prostate-specific Antigen Screening in BRCA2 Mutation Carriers. Eur Urol. 2019 Dec;76(6):831-842. doi: 10.1016/j.eururo.2019.08.019. Epub 2019 Sep 16.

  • Dias A, Brook MN, Bancroft EK, Page EC, Chamberlain A, Saya S, Amin J, Mikropoulos C, Taylor N, Myhill K, Thomas S, Saunders E, Dadaev T, Leongamornlert D, Dyrso Jensen T, Evans DG, Cybulski C, Liljegren A, Teo SH, Side L; IMPACT study collaborators and Steering Committee; Kote-Jarai Z, Eeles RA. Serum testosterone and prostate cancer in men with germline BRCA1/2 pathogenic variants. BJUI Compass. 2023 Jan 9;4(3):361-373. doi: 10.1002/bco2.156. eCollection 2023 May.

  • Bancroft EK, Page EC, Brook MN, Thomas S, Taylor N, Pope J, McHugh J, Jones AB, Karlsson Q, Merson S, Ong KR, Hoffman J, Huber C, Maehle L, Grindedal EM, Stormorken A, Evans DG, Rothwell J, Lalloo F, Brady AF, Bartlett M, Snape K, Hanson H, James P, McKinley J, Mascarenhas L, Syngal S, Ukaegbu C, Side L, Thomas T, Barwell J, Teixeira MR, Izatt L, Suri M, Macrae FA, Poplawski N, Chen-Shtoyerman R, Ahmed M, Musgrave H, Nicolai N, Greenhalgh L, Brewer C, Pachter N, Spigelman AD, Azzabi A, Helfand BT, Halliday D, Buys S, Ramon Y Cajal T, Donaldson A, Cooney KA, Harris M, McGrath J, Davidson R, Taylor A, Cooke P, Myhill K, Hogben M, Aaronson NK, Ardern-Jones A, Bangma CH, Castro E, Dearnaley D, Dias A, Dudderidge T, Eccles DM, Green K, Eyfjord J, Falconer A, Foster CS, Gronberg H, Hamdy FC, Johannsson O, Khoo V, Lilja H, Lindeman GJ, Lubinski J, Axcrona K, Mikropoulos C, Mitra AV, Moynihan C, Ni Raghallaigh H, Rennert G, Collier R; IMPACT Study Collaborators; Offman J, Kote-Jarai Z, Eeles RA. A prospective prostate cancer screening programme for men with pathogenic variants in mismatch repair genes (IMPACT): initial results from an international prospective study. Lancet Oncol. 2021 Nov;22(11):1618-1631. doi: 10.1016/S1470-2045(21)00522-2. Epub 2021 Oct 19.

  • Bancroft EK, Saya S, Page EC, Myhill K, Thomas S, Pope J, Chamberlain A, Hart R, Glover W, Cook J, Rosario DJ, Helfand BT, Hutten Selkirk C, Davidson R, Longmuir M, Eccles DM, Gadea N, Brewer C, Barwell J, Salinas M, Greenhalgh L, Tischkowitz M, Henderson A, Evans DG, Buys SS; IMPACT Study Steering Committee; IMPACT Collaborators; Eeles RA, Aaronson NK. Psychosocial impact of undergoing prostate cancer screening for men with BRCA1 or BRCA2 mutations. BJU Int. 2019 Feb;123(2):284-292. doi: 10.1111/bju.14412. Epub 2018 Jun 22.

  • Bancroft EK, Page EC, Brook MN, Pope J, Thomas S, Myhill K, Helfand BT, Talaty P, Ong KR, Douglas E, Cook J, Rosario DJ, Salinas M, Buys SS, Anson J, Davidson R, Longmuir M, Side L, Eccles DM, Tischkowitz M, Taylor A, Cruellas M, Ballestero EP, Cleaver R, Varughese M, Barwell J, LeButt M, Greenhalgh L, Hart R, Azzabi A, Jobson I, Cogley L, Evans DG, Rothwell J, Taylor N, Hogben M, Saya S; IMPACT Study Steering Committee; IMPACT Collaborators; Eeles RA, Aaronson NK. The psychosocial impact of prostate cancer screening for BRCA1 and BRCA2 carriers. BJU Int. 2024 Sep;134(3):484-500. doi: 10.1111/bju.16432. Epub 2024 Jun 5.

  • Das S, Salami SS, Spratt DE, Kaffenberger SD, Jacobs MF, Morgan TM. Bringing Prostate Cancer Germline Genetics into Clinical Practice. J Urol. 2019 Aug;202(2):223-230. doi: 10.1097/JU.0000000000000137. Epub 2019 Jul 8.

Related Links

Biospecimen

Retention: SAMPLES WITH DNA

Whole blood, Serum, Plasma, Urine, Prostate tissue.

MeSH Terms

Conditions

Prostatic NeoplasmsGenetic Predisposition to DiseaseColorectal Neoplasms, Hereditary Nonpolyposis

Condition Hierarchy (Ancestors)

Genital Neoplasms, MaleUrogenital NeoplasmsNeoplasms by SiteNeoplasmsGenital Diseases, MaleGenital DiseasesUrogenital DiseasesProstatic DiseasesMale Urogenital DiseasesDisease SusceptibilityDisease AttributesPathologic ProcessesPathological Conditions, Signs and SymptomsColorectal NeoplasmsIntestinal NeoplasmsGastrointestinal NeoplasmsDigestive System NeoplasmsNeoplastic Syndromes, HereditaryDigestive System DiseasesGastrointestinal DiseasesColonic DiseasesIntestinal DiseasesGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesDNA Repair-Deficiency DisordersMetabolic DiseasesNutritional and Metabolic Diseases

Study Officials

  • Rosalind A Eeles, FRCP FRCR

    Institute of Cancer Research and Royal Marsden Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 1, 2005

First Posted

December 5, 2005

Study Start

March 1, 2005

Primary Completion (Estimated)

February 28, 2030

Study Completion (Estimated)

March 1, 2030

Last Updated

September 26, 2025

Record last verified: 2025-09

Data Sharing

IPD Sharing
Will share

Anonymised data can be applied for via the Data Access Committee

Locations