R Popert

Affiliations

Guy's and St Thomas' NHS Foundation Trust, London, UK.

Publications (22)

Guy's and St Thomas NHS Foundation active surveillance prostate cancer cohort: a characterisation of a prostate cancer active surveillance database.

BMC cancer

Avec: Salonee Shah , Kerri Beckmann , Mieke Van Hemelrijck , Ben Challacombe , Rick Popert , Prokar Dasgupta , Jonah Rusere , Grace Zisengwe , Oussama Elhage , Aida Santaolalla

Is the Toxicity of Salvage Prostatectomy Related to the Primary Prostate Cancer Therapy Received?

The Journal of urology

Avec: Luis Ribeiro , Thomas Stonier , Luke Stroman , Rafael Tourinho-Barbosa , Omar Alghazo , Mathias Winkler , Prokar Dasgupta , Rick Popert , Xavier Cathelineau , Rafael Sanchez-Salas , Declan G Murphy , Mark Emberton , Paul Cathcart

Timing of radiotherapy after radical prostatectomy (RADICALS-RT): a randomised, controlled phase 3 trial.

Lancet (London, England)

Avec: Christopher C Parker , Noel W Clarke , Adrian D Cook , Howard G Kynaston , Peter Meidahl Petersen , Charles Catton , William Cross , John Logue , Wendy Parulekar , Heather Payne , Rajendra Persad , Holly Pickering , Fred Saad , Juliette Anderson , Amit Bahl , David Bottomley , Klaus Brasso , Rohit Chahal , Peter W Cooke , Ben Eddy , Stephanie Gibbs , Chee Goh , Sandeep Gujral , Catherine Heath , Alastair Henderson , Ramasamy Jaganathan , Henrik Jakobsen , Nicholas D James , Subramanian Kanaga Sundaram , Kathryn Lees , Jason Lester , Henriette Lindberg , Julian Money-Kyrle , Stephen Morris , Joe O'Sullivan , Peter Ostler , Lisa Owen , Prashant Patel , Alvan Pope , Richard Popert , Rakesh Raman , Martin Andreas Røder , Ian Sayers , Matthew Simms , Jim Wilson , Anjali Zarkar , Mahesh K B Parmar , Matthew R Sydes

Negative first follow-up prostate biopsy on active surveillance is associated with decreased risk of upgrading, suspicion of progression and converting to active treatment.

BJU international

Avec: Sohail Singh , Preeti Sandhu , Kerri Beckmann , Aida Santaolalla , Kamal Dewan , Sharon Clovis , Jonah Rusere , Grace Zisengwe , Benjamin Challacombe , Christian Brown , Paul Cathcart , Rick Popert , Prokar Dasgupta , Mieke Van Hemelrijck , Oussama Elhage

A Single Educational Seminar Increases Confidence and Decreases Dropout from Active Surveillance by 5 Years After Diagnosis of Prostate Cancer.

European urology oncology

Avec: Netty Kinsella , Kerri Beckmann , Declan Cahill , Oussama Elhage , Rick Popert , Paul Cathcart , Ben Challacombe , Christian Brown , Mieke Van Hemelrijck

Targeted and systematic cognitive freehand-guided transperineal biopsy: is there still a role for systematic biopsy?

BJU international

Avec: Anoushka Neale , Luke Stroman , Francesca Kum , Dost Jabarkhyl , Antonina Di Benedetto , Nicholas Mehan , Jonah Rusere , Ashish Chandra , Ben Challacombe , Paul Cathcart , Prokar Dasgupta , Oussama Elhage , Rick Popert

Salvage Radical Prostatectomy for Recurrent Prostate Cancer: Morbidity and Functional Outcomes from a Large Multicenter Series of Open versus Robotic Approaches.

The Journal of urology

Avec: Paolo Gontero , Giancarlo Marra , Paolo Alessio , Claudia Filippini , Marco Oderda , Fernando Munoz , Estefania Linares , Rafael Sanchez-Salas , Ben Challacombe , Prokar Dasgupta , Sanchia Goonewardene , Rick Popert , Declan Cahill , David Gillatt , Raj Persad , Juan Palou , Steven Joniau , Thierry Piechaud , Alessandro Morlacco , Sharma Vidit , Morgan Rouprêt , Alexandre De La Taille , Simone Albisinni , Giorgio Gandaglia , Alexander Mottrie , Shreyas Joshi , Gabriel Fiscus , Andre Berger , Monish Aron , Henk Van Der Poel , Derya Tilki , Nathan Lawrentschuk , Declan G Murphy , Gordon Leung , John Davis , Robert Jeffrey Karnes , Auteur inconnu

EXIT from TRansrectal prostate biopsies (TREXIT): sepsis rates of transrectal biopsy with rectal swab culture guided antimicrobials versus freehand transperineal biopsy.

Prostate cancer and prostatic diseases

Avec: Thomas Hedley Newman , Luke Stroman , Marios Hadjipavlou , Arman Haque , Jonah Rusere , Kimberley Chan , Demetris Ioannides , Antonina Di Benedetto , Tibor Pinczes , Rick Popert , Mohamed Y Hammadeh

Clinical outcomes of anterior prostate cancers treated with robotic assisted radical prostatectomy.

BJUI compass

Avec: Reyan Saghir , Beth Russell , Francesca Kum , Raef Darwish , Jude Deane , Christopher Allen , Hira Rizwi , Noman Saghir , Nikhil Mayor , Paul Cathcart , Prokar Dasgupta , Rick Popert , Christian Brown , Ben Challacombe

Oncological outcomes of salvage radical prostatectomy for recurrent prostate cancer in the contemporary era: A multicenter retrospective study.

Urologic oncology

Avec: Giancarlo Marra , Robert Jeffrey Karnes , Giorgio Calleris , Marco Oderda , Paolo Alessio , Anna Palazzetti , Antonino Battaglia , Francesca Pisano , Stefania Munegato , Fernando Munoz , Claudia Filippini , Umberto Ricardi , Estefania Linares , Rafael Sanchez-Salas , Sanchia Goonewardene , Prokar Dasgupta , Ben Challacombe , Rick Popert , Declan Cahill , David Gillatt , Raj Persad , Juan Palou , Steven Joniau , Salvatore Smelzo , Thierry Piechaud , Alexandre De La Taille , Morgan Roupret , Simone Albisinni , Roland van Velthoven , Alessandro Morlacco , Sharma Vidit , Giorgio Gandaglia , Alexander Mottrie , Joseph Smith , Shreyas Joshi , Gabriel Fiscus , Andre Berger , Monish Aron , Andre Abreu , Inderbir S Gill , Henk Van Der Poel , Derya Tilki , Declan Murphy , Nathan Lawrentschuk , John Davis , Paolo Gontero

Safety of "hot" and "cold" site admissions within a high-volume urology department in the United Kingdom at the peak of the COVID-19 pandemic.

BJUI compass

Avec: Luke Stroman , Beth Russell , Pinky Kotecha , Anastasia Kantartzi , Luis Ribeiro , Bethany Jackson , Vugar Ismaylov , Adeoye Oluwakanyinsola Debo-Aina , Findlay MacAskill , Francesca Kum , Meghana Kulkarni , Raveen Sandher , Anna Walsh , Ella Doerge , Katherine Guest , Yamini Kailash , Nick Simson , Cassandra McDonald , Elsie Mensah , Li June Tay , Ramandeep Chalokia , Sharon Clovis , Elizabeth Eversden , Jane Cossins , Jonah Rusere , Grace Zisengwe , Louisa Fleure , Leslie Cooper , Kathryn Chatterton , Amelia Barber , Catherine Roberts , Thomasia Azavedo , Jeffrey Ritualo , Harold Omana , Liza Mills , Lily Studd , Oussama El Hage , Rajesh Nair , Sachin Malde , Arun Sahai , Archana Fernando , Claire Taylor , Benjamin Challacombe , Ramesh Thurairaja , Rick Popert , Jonathon Olsburgh , Paul Cathcart , Christian Brown , Marios Hadjipavlou , Ella Di Benedetto , Matthew Bultitude , Jonathon Glass , Tet Yap , Rhana Zakri , Majed Shabbir , Susan Willis , Kay Thomas , Tim O'Brien , Muhammad Shamim Khan , Prokar Dasgupta

HoLEPs: A Comparative Study of Men With Massive Prostate Volumes ≥150 mL and <150 mL.

Urology

Avec: Li June Tay , Meghana Kulkarni , Akinlolu Oluwole-Ojo , Leigh James Spurling , Oussama El-Hage , Ella DiBenedetto , Marios Hadjipavlou , Rick Popert , Ben Challacombe

Timing of Radiotherapy (RT) After Radical Prostatectomy (RP): Long-term outcomes in the RADICALS-RT trial [NCT00541047].

Annals of oncology : official journal of the European Society for Medical Oncology

Avec: C C Parker , P M Petersen , A D Cook , N W Clarke , C Catton , W R Cross , H Kynaston , W R Parulekar , R A Persad , F Saad , L Bower , G C Durkan , J Logue , C Maniatis , D Noor , H Payne , J Anderson , A K Bahl , F Bashir , D M Bottomley , K Brasso , L Capaldi , P W Cooke , C Chung , J Donohue , B Eddy , C M Heath , A Henderson , A Henry , R Jaganathan , H Jakobsen , N D James , J Joseph , K Lees , J Lester , H Lindberg , A Makar , S L Morris , N Oommen , P Ostler , L Owen , P Patel , A Pope , R Popert , R Raman , V Ramani , A Røder , I Sayers , M Simms , V Srinivasan , S Sundaram , K L Tarver , A Tran , P Wells , J Wilson , A M Zarkar , M K M Parmar , M R Sydes , Auteur inconnu

The management impact of

European journal of nuclear medicine and molecular imaging

Avec: Meghana Kulkarni , Simon Hughes , Andrew Mallia , Victoria Gibson , Jennifer Young , Ajay Aggarwal , Stephen Morris , Ben Challacombe , Rick Popert , Christian Brown , Paul Cathcart , Prokar Dasgupta , Victoria S Warbey , Gary J R Cook

The clinical and financial implications of a decade of prostate biopsies in the NHS: analysis of Hospital Episode Statistics data 2008-2019.

BJU international

Avec: Ashwin Sunil Tamhankar , Omar El-Taji , Nikhil Vasdev , Charlotte Foley , Rick Popert , Jim Adshead

Prostate artery embolisation: an all-comers, single-operator experience in 159 patients with lower urinary tract symptoms, urinary retention, or haematuria with medium-term follow-up.

Clinical radiology

Avec: N Thulasidasan , H K Kok , O Elhage , S Clovis , R Popert , T Sabharwal

Initial outcomes of local anaesthetic freehand transperineal prostate biopsies in the outpatient setting.

BJU international

Avec: Francesca Kum , Oussama Elhage , Jed Maliyil , Kathie Wong , Nicholas Faure Walker , Meghana Kulkarni , Benjamin Namdarian , Benjamin Challacombe , Paul Cathcart , Rick Popert

Recent Advances in Systematic and Targeted Prostate Biopsies.

Research and reports in urology

Avec: Konstantinos Devetzis , Francesca Kum , Richard Popert

Local anaesthetic transperineal (LATP) prostate biopsy using a probe-mounted transperineal access system: a multicentre prospective outcome analysis.

BJU international

Avec: J Francisco Lopez , Angus Campbell , Altan Omer , Luke Stroman , Jasper Bondad , Tom Austin , Thomas Reeves , Curtis Phelan , Aaron Leiblich , Yiannis Philippou , Catherine E Lovegrove , Nithesh Ranasinha , Richard J Bryant , Tom Leslie , Freddie C Hamdy , Simon Brewster , C Richard Bell , Rick Popert , Dominic Hodgson , Mohammed Elsaghir , Ben Eddy , Stefanos Bolomytis , Raj Persad , Utsav D Reddy , Charlotte Foley , Simon van Rij , Wayne Lam , Alastair D Lamb

Presentation, follow-up, and outcomes among African/Afro-Caribbean men on active surveillance for prostate cancer: experiences of a high-volume UK centre.

Prostate cancer and prostatic diseases

Avec: Francesca Kum , Kerri Beckmann , Haleema Aya , Sohail Singh , Preeti Sandhu , Sukhmani Sra , Jonah Rusere , Grace Zisengwe , Aida Santaolalla , Paul Cathcart , Ben Challacombe , Christian Brown , Rick Popert , Prokar Dasgupta , Mieke Van Hemelrijck , Oussama Elhage

Erectile Function Following Surgery for Benign Prostatic Obstruction: A Systematic Review and Network Meta-analysis of Randomised Controlled Trials.

European urology

Avec: Alexander Light , Dost Jabarkhyl , Peter Gilling , Gincy George , Mieke Van Hemelrijck , Ben Challacombe , Sachin Malde , Rick Popert , Prokar Dasgupta , Oussama Elhage

Decision Regret in Patients with Localised Prostate Cancer: A Systematic Review and Meta-analysis.

European urology oncology

Avec: Jack B Fanshawe , Vinson Wai-Shun Chan , Aqua Asif , Alexander Ng , Mieke Van Hemelrijck , Paul Cathcart , Ben Challacombe , Christian Brown , Rick Popert , Oussama Elhage , Kamran Ahmed , Oliver Brunckhorst , Prokar Dasgupta

Réseau de co-auteurs

Rick Popert 18 collaborations

Prokar Dasgupta 12 collaborations

Ben Challacombe 11 collaborations

Paul Cathcart 10 collaborations

Oussama Elhage 8 collaborations

Christian Brown 7 collaborations

Mieke Van Hemelrijck 6 collaborations

Jonah Rusere 6 collaborations

Francesca Kum 6 collaborations

Luke Stroman 5 collaborations

Kerri Beckmann 4 collaborations

Grace Zisengwe 4 collaborations

Meghana Kulkarni 4 collaborations

Aida Santaolalla 3 collaborations

Rafael Sanchez-Salas 3 collaborations

Benjamin Challacombe 3 collaborations

Declan Cahill 3 collaborations

Raj Persad 3 collaborations

Marios Hadjipavlou 3 collaborations

Luis Ribeiro 2 collaborations

Declan G Murphy 2 collaborations

Ben Eddy 2 collaborations

Stephen Morris 2 collaborations

Richard Popert 2 collaborations

Sohail Singh 2 collaborations

Preeti Sandhu 2 collaborations

Sharon Clovis 2 collaborations

Dost Jabarkhyl 2 collaborations

Antonina Di Benedetto 2 collaborations

Paolo Gontero 2 collaborations

Giancarlo Marra 2 collaborations

Paolo Alessio 2 collaborations

Claudia Filippini 2 collaborations

Marco Oderda 2 collaborations

Fernando Munoz 2 collaborations

Estefania Linares 2 collaborations

Sanchia Goonewardene 2 collaborations

David Gillatt 2 collaborations

Juan Palou 2 collaborations

Steven Joniau 2 collaborations

Thierry Piechaud 2 collaborations

Alessandro Morlacco 2 collaborations

Sharma Vidit 2 collaborations

Alexandre De La Taille 2 collaborations

Simone Albisinni 2 collaborations

Giorgio Gandaglia 2 collaborations

Alexander Mottrie 2 collaborations

Shreyas Joshi 2 collaborations

Gabriel Fiscus 2 collaborations

Andre Berger 2 collaborations

Monish Aron 2 collaborations

Henk Van Der Poel 2 collaborations

Derya Tilki 2 collaborations

Nathan Lawrentschuk 2 collaborations

John Davis 2 collaborations

Robert Jeffrey Karnes 2 collaborations

None None 2 collaborations

Beth Russell 2 collaborations

Li June Tay 2 collaborations

Sachin Malde 2 collaborations

Charlotte Foley 2 collaborations

Salonee Shah 1 collaboration

Thomas Stonier 1 collaboration

Rafael Tourinho-Barbosa 1 collaboration

Omar Alghazo 1 collaboration

Mathias Winkler 1 collaboration

Xavier Cathelineau 1 collaboration

Mark Emberton 1 collaboration

Christopher C Parker 1 collaboration

Noel W Clarke 1 collaboration

Adrian D Cook 1 collaboration

Howard G Kynaston 1 collaboration

Peter Meidahl Petersen 1 collaboration

Charles Catton 1 collaboration

William Cross 1 collaboration

John Logue 1 collaboration

Wendy Parulekar 1 collaboration

Heather Payne 1 collaboration

Rajendra Persad 1 collaboration

Holly Pickering 1 collaboration

Fred Saad 1 collaboration

Juliette Anderson 1 collaboration

Amit Bahl 1 collaboration

David Bottomley 1 collaboration

Klaus Brasso 1 collaboration

Rohit Chahal 1 collaboration

Peter W Cooke 1 collaboration

Stephanie Gibbs 1 collaboration

Chee Goh 1 collaboration

Sandeep Gujral 1 collaboration

Catherine Heath 1 collaboration

Alastair Henderson 1 collaboration

Ramasamy Jaganathan 1 collaboration

Henrik Jakobsen 1 collaboration

Nicholas D James 1 collaboration

Subramanian Kanaga Sundaram 1 collaboration

Kathryn Lees 1 collaboration

Jason Lester 1 collaboration

Henriette Lindberg 1 collaboration

Julian Money-Kyrle 1 collaboration

Joe O'Sullivan 1 collaboration

Peter Ostler 1 collaboration

Lisa Owen 1 collaboration

Prashant Patel 1 collaboration

Alvan Pope 1 collaboration

Rakesh Raman 1 collaboration

Martin Andreas Røder 1 collaboration

Ian Sayers 1 collaboration

Matthew Simms 1 collaboration

Jim Wilson 1 collaboration

Anjali Zarkar 1 collaboration

Mahesh K B Parmar 1 collaboration

Matthew R Sydes 1 collaboration

Kamal Dewan 1 collaboration

Netty Kinsella 1 collaboration

Anoushka Neale 1 collaboration

Nicholas Mehan 1 collaboration

Ashish Chandra 1 collaboration

Morgan Rouprêt 1 collaboration

Gordon Leung 1 collaboration

Thomas Hedley Newman 1 collaboration

Arman Haque 1 collaboration

Kimberley Chan 1 collaboration

Demetris Ioannides 1 collaboration

Tibor Pinczes 1 collaboration

Mohamed Y Hammadeh 1 collaboration

Reyan Saghir 1 collaboration

Raef Darwish 1 collaboration

Jude Deane 1 collaboration

Christopher Allen 1 collaboration

Hira Rizwi 1 collaboration

Noman Saghir 1 collaboration

Nikhil Mayor 1 collaboration

Giorgio Calleris 1 collaboration

Anna Palazzetti 1 collaboration

Antonino Battaglia 1 collaboration

Francesca Pisano 1 collaboration

Stefania Munegato 1 collaboration

Umberto Ricardi 1 collaboration

Salvatore Smelzo 1 collaboration

Morgan Roupret 1 collaboration

Roland van Velthoven 1 collaboration

Joseph Smith 1 collaboration

Andre Abreu 1 collaboration

Inderbir S Gill 1 collaboration

Declan Murphy 1 collaboration

Pinky Kotecha 1 collaboration

Anastasia Kantartzi 1 collaboration

Bethany Jackson 1 collaboration

Vugar Ismaylov 1 collaboration

Adeoye Oluwakanyinsola Debo-Aina 1 collaboration

Findlay MacAskill 1 collaboration

Raveen Sandher 1 collaboration

Anna Walsh 1 collaboration

Ella Doerge 1 collaboration

Katherine Guest 1 collaboration

Yamini Kailash 1 collaboration

Nick Simson 1 collaboration

Cassandra McDonald 1 collaboration

Elsie Mensah 1 collaboration

Ramandeep Chalokia 1 collaboration

Elizabeth Eversden 1 collaboration

Jane Cossins 1 collaboration

Louisa Fleure 1 collaboration

Leslie Cooper 1 collaboration

Kathryn Chatterton 1 collaboration

Amelia Barber 1 collaboration

Catherine Roberts 1 collaboration

Thomasia Azavedo 1 collaboration

Jeffrey Ritualo 1 collaboration

Harold Omana 1 collaboration

Liza Mills 1 collaboration

Lily Studd 1 collaboration

Oussama El Hage 1 collaboration

Rajesh Nair 1 collaboration

Arun Sahai 1 collaboration

Archana Fernando 1 collaboration

Claire Taylor 1 collaboration

Ramesh Thurairaja 1 collaboration

Jonathon Olsburgh 1 collaboration

Ella Di Benedetto 1 collaboration

Matthew Bultitude 1 collaboration

Jonathon Glass 1 collaboration

Tet Yap 1 collaboration

Rhana Zakri 1 collaboration

Majed Shabbir 1 collaboration

Susan Willis 1 collaboration

Kay Thomas 1 collaboration

Tim O'Brien 1 collaboration

Muhammad Shamim Khan 1 collaboration

Akinlolu Oluwole-Ojo 1 collaboration

Leigh James Spurling 1 collaboration

Oussama El-Hage 1 collaboration

Ella DiBenedetto 1 collaboration

C C Parker 1 collaboration

P M Petersen 1 collaboration

A D Cook 1 collaboration

N W Clarke 1 collaboration

C Catton 1 collaboration

W R Cross 1 collaboration

H Kynaston 1 collaboration

W R Parulekar 1 collaboration

R A Persad 1 collaboration

F Saad 1 collaboration

L Bower 1 collaboration

G C Durkan 1 collaboration

J Logue 1 collaboration

C Maniatis 1 collaboration

D Noor 1 collaboration

H Payne 1 collaboration

J Anderson 1 collaboration

A K Bahl 1 collaboration

F Bashir 1 collaboration

D M Bottomley 1 collaboration

K Brasso 1 collaboration

L Capaldi 1 collaboration

P W Cooke 1 collaboration

C Chung 1 collaboration

J Donohue 1 collaboration

B Eddy 1 collaboration

C M Heath 1 collaboration

A Henderson 1 collaboration

A Henry 1 collaboration

R Jaganathan 1 collaboration

H Jakobsen 1 collaboration

N D James 1 collaboration

J Joseph 1 collaboration

K Lees 1 collaboration

J Lester 1 collaboration

H Lindberg 1 collaboration

A Makar 1 collaboration

S L Morris 1 collaboration

N Oommen 1 collaboration

P Ostler 1 collaboration

L Owen 1 collaboration

P Patel 1 collaboration

A Pope 1 collaboration

R Raman 1 collaboration

V Ramani 1 collaboration

A Røder 1 collaboration

I Sayers 1 collaboration

M Simms 1 collaboration

V Srinivasan 1 collaboration

S Sundaram 1 collaboration

K L Tarver 1 collaboration

A Tran 1 collaboration

P Wells 1 collaboration

J Wilson 1 collaboration

A M Zarkar 1 collaboration

M K M Parmar 1 collaboration

M R Sydes 1 collaboration

Simon Hughes 1 collaboration

Andrew Mallia 1 collaboration

Victoria Gibson 1 collaboration

Jennifer Young 1 collaboration

Ajay Aggarwal 1 collaboration

Victoria S Warbey 1 collaboration

Gary J R Cook 1 collaboration

Ashwin Sunil Tamhankar 1 collaboration

Omar El-Taji 1 collaboration

Nikhil Vasdev 1 collaboration

Jim Adshead 1 collaboration

N Thulasidasan 1 collaboration

H K Kok 1 collaboration

O Elhage 1 collaboration

S Clovis 1 collaboration

T Sabharwal 1 collaboration

Jed Maliyil 1 collaboration

Kathie Wong 1 collaboration

Nicholas Faure Walker 1 collaboration

Benjamin Namdarian 1 collaboration

Konstantinos Devetzis 1 collaboration

J Francisco Lopez 1 collaboration

Angus Campbell 1 collaboration

Altan Omer 1 collaboration

Jasper Bondad 1 collaboration

Tom Austin 1 collaboration

Thomas Reeves 1 collaboration

Curtis Phelan 1 collaboration

Aaron Leiblich 1 collaboration

Yiannis Philippou 1 collaboration

Catherine E Lovegrove 1 collaboration

Nithesh Ranasinha 1 collaboration

Richard J Bryant 1 collaboration

Tom Leslie 1 collaboration

Freddie C Hamdy 1 collaboration

Simon Brewster 1 collaboration

C Richard Bell 1 collaboration

Dominic Hodgson 1 collaboration

Mohammed Elsaghir 1 collaboration

Stefanos Bolomytis 1 collaboration

Utsav D Reddy 1 collaboration

Simon van Rij 1 collaboration

Wayne Lam 1 collaboration

Alastair D Lamb 1 collaboration

Haleema Aya 1 collaboration

Sukhmani Sra 1 collaboration

Alexander Light 1 collaboration

Peter Gilling 1 collaboration

Gincy George 1 collaboration

Jack B Fanshawe 1 collaboration

Vinson Wai-Shun Chan 1 collaboration

Aqua Asif 1 collaboration

Alexander Ng 1 collaboration

Kamran Ahmed 1 collaboration

Oliver Brunckhorst 1 collaboration