CClinicalTrials.gg
RecruitingNCT03297281SOAPUpdated Mar 6, 2026

Stop or Ongoing Oral Anticoagulation in Patients Undergoing Pvp (SOAP)

An interventional study of Maintenance of OAC in surgery of BPH by PVP. and Discontinuation of OAC in surgery of BPH by PVP. in Benign Prostatic Hyperplasia and Anticoagulant Adverse Reaction, sponsored by Clinique Pasteur. Recruiting at 1 site in France. Open to male participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-03-06.

Sponsored by Clinique Pasteur · Not applicable, Interventional, and Other

Phase
Not applicable
Study type
Interventional
Enrollment
389
Allocation
Randomized
Ages
18 Years and older
Sex
Male
01

Study summary

Benign prostatic hyperplasia (BPH) is a very common pathology of the aging man with an incidence that rises from 40% in men aged 50 to 60 years to 90% in men over 80 years. Studies such as the MTOPS (the Medical Therapy of Prostatic Symptoms) study show that more than half of the patients recruited had an aggravation of their disease over time either by an increase in symptoms or by the appearance of complications such as acute retention of urine.

For benign symptomatic prostate hypertrophy, apart from any complication, first-line treatment is now a medical treatment. For patients who respond poorly to medical treatment or who have complications related to benign prostatic hypertrophy, the treatment becomes surgical. The reference treatment is endoscopic prostate resection (TURP). It is mainly to improve the safety of hemostasis in patients older and older and at significant surgical risk that new "minimally invasive" surgical techniques have emerged. Thus, lasers have been developed and are currently used as an alternative to the TURP. Used in clinical practice since 2000, prostatic photosensitive vaporization (PVP) relies on the absorption of a 532nm (green) wavelength laser beam by the oxyhemoglobin contained in richly vascularized prostate tissue.

Given the aging of the population, more and more patients are being treated with oral anticoagulants (Anti Vitamin K (AVK) or direct oral anticoagulants (DOACs)). Today there are about 1.4 million people on oral anticoagulants, 40% of whom are over 80 years of age. The peri-operative management of the AVK is currently based on the recommendations published by the FHA (French Health Authority) in 2008. Concerning the perioperative management of DOACs, the perioperative haemostasis interest group (GIHP) made proposals updated in September 2015.

Numerous studies published in the literature have concluded the feasibility of prostate removal surgery by PVP with greenlight laser without relay (or interruption) of AVK or DOACs because of the properties of hemostasis. But the levels of evidence for these studies remain low.

No study has focused on rigorously assessing the perioperative hemorrhagic risk associated with OAC therapy in patients eligible for PVP, and this is the originality of this study.

This study is a multicenter prospective randomized study whose objective is to show that the PVP performed in patients with OAC is not associated with an increase in perioperative hemorrhagic risk.

Read the detailed description

SOAP is a non-inferiority, multicentric, open-labelled, two parallel arms study.

The expected benefits are to foster and make the perioperative management of OAC safer in patients undergoing BPH surgery with PVP.

02

Conditions studied

  • Benign Prostatic Hyperplasia
  • Anticoagulant Adverse Reaction

Browse trials for

Keywords

  • Photovaporization
  • Laser
  • Benign prostatic hyperplasia
  • Oral anticoagulation
  • Complication
03

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Male
Accepts healthy volunteers
No

Inclusion criteria

  • Prostate volume \< or = 30 gr
  • Micturition disorders resistant to medical treatment related to HBP and/or complications related to BPH (retention, lithiasis...)
  • Patient candidate for photovaporization of the prostate
  • Patient under treatment AVK (Anti Vitamin K) for more than 3 months with an objective of INR (International Normalized Ratio) between 2 and 3 or patient under DOACs (Direct Oral Anti-coagulants) for more than 3 months
  • Unprotected major
  • Patient affiliated to a social security scheme or equivalent
  • Patient is willing and able to comply with all study requirements and to sign a study-specific informed consent form.

Exclusion criteria

Exclusion Criteria:

  • History of prostate cancer
  • Previous pelvic radiotherapy
  • History of stenosis of the urethra
  • Patient with one or more bladder polyps
  • Patient under antiplatelet agent other than aspirin
  • Allergy to heparin or history of heparin-induced thrombocytopenia
  • Patients under anticoagulant injectable therapy at baseline (heparin, LMWH (Low Molecular Weight Heparin), fondaparinux)
  • Any mechanical prosthetic heart valve
  • Stroke (ischemic or hemorrhagic), systemic embolism or transient ischemic attack within past 12 weeks
  • Venous thromboembolism (deep vein thrombosis and/or pulmonary embolism) within past 12 weeks
  • Major bleeding within past 6 weeks
  • Severe renal insufficiency (calculated creatinine clearance \< 30 mL / min)
  • Thrombocytopenia (platelet count \< 100 x 10\^9 / L)
  • Life expectancy \< 1 month
  • Condition that impairs compliance with trial protocol (e.g. cognitive impairment, uncontrolled psychiatric condition, geographic inaccessibility)
  • Contra-indication to PVP surgery or contra-indication to general anesthesia
  • Protected patients : majors under some form of guardianship
  • Patient participating in another clinical study
04

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
389 participants (estimated)

Study arms

  • Experimental
    S1: maintenance

    Maintenance of OAC in surgery of BPH by PVP.

    Other: Maintenance of OAC in surgery of BPH by PVP.

  • Active comparator
    S2 : discontinuation

    Discontinuation of OAC in surgery of BPH by PVP.

    Other: Discontinuation of OAC in surgery of BPH by PVP.

Interventions

  • OtherMaintenance of OAC in surgery of BPH by PVP.

    The maintenance of AVK or DOACs treatment in the perioperative setting (without interruption of oral treatment).

  • OtherDiscontinuation of OAC in surgery of BPH by PVP.

    The discontinuation of AVK or DOACs treatment with perioperative heparin relay during postoperative course.

05

What researchers measure

Primary outcomes

  1. Number of patients with at least one complication classified higher or equal to grade 2 according to the Clavien classification related to maintenance of oral-anticoagulant (OAC) during the surgical resection of BPH by laser at 1 month

    Time frame: Between day 0 (day of the surgery) and day 30 (1 month after surgery)

Secondary outcomes

  1. Number of patients with at least one hemorrhagic complication related to maintenance of oral-anticoagulant (OAC) during the surgical resection of BPH by laser at 1 month, 3 months and 6 months

    Haemorrhagic complications are defined by hematuria, bladder clotting removed from patient bed or operating room.

    Time frame: At 1 month, 3 months and 6 months

  2. Number of patients with at least one thrombotic complication related to maintenance of oral-anticoagulant (OAC) during the surgical resection of BPH by laser at 1 month, 3 months and 6 months

    Thrombotic complications are defined by stroke, transient ischemic attacks and systemic embolisms.

    Time frame: At 1 month, 3 months and 6 months

  3. Duration of hospitalization related to perioperative management of anticoagulants will be measured at the patient's discharge

    Time frame: At the patient's discharge, on average 3 days after surgery

  4. Prostatic residual volume will be measured to evaluate the quality of resection under oral-anticoagulant at 1 month, 3 months, and 6 months

    Time frame: At 1 month, 3 months and 6 months

  5. PSA level will be measured to evaluate the quality of resection under oral-anticoagulant at 1 month, 3 months, and 6 months

    Time frame: At 1 month, 3 months and 6 months

  6. Questionnaires International Prostate Symptom Score (IPSS) will be complemented by patients to evaluate the functional success of surgery under oral-anticoagulant at 1 month, 3 months and 6 months

    Time frame: At 1 month, 3 months and 6 months

  7. International Continence Society (ICS) will be complemented by patients to evaluate the functional success of surgery under oral-anticoagulant at 1 month, 3 months and 6 months

    Time frame: At 1 month, 3 months and 6 months

  8. Volume of post-voiding residue will be measured to evaluate the functional success of surgery under oral-anticoagulant at 1 month, 3 months and 6 months

    Time frame: At 1 month, 3 months and 6 months

06

Study locations

1 of 1 sites recruiting
  • Clinique Pasteur
    Toulouse, 31 076, France
    • Vincent Misraï, Dr · Contact · vmisrai@clinique-pasteur.com · 05 62 21 33 26
    • Nicolas Barry Delongchamps, Dr · Principal investigator
    • Emmanuel Della Negra, Dr · Principal investigator
    • Romain Mathieu, Dr · Principal investigator
    • Gilles Karsenty, Pr · Principal investigator
    • Charles Ballereau, Dr · Principal investigator
    • Franck Bruyère, Pr · Principal investigator
    • Luc Corbel, Dr · Sub investigator
    • Sébastien Vincendeau, Dr · Principal investigator
    • Gaëlle Fiard, Dr · Sub investigator
    • Caroline Thuillier, Dr · Sub investigator
    • Jean-Luc Descotes, Pr · Principal investigator
    • Pierre Colin, Dr · Sub investigator
    • Souhil Lebdai, Dr · Principal investigator
    • Camille Overs, Dr · Principal investigator
    • Pierre Bigot, Pr · Sub investigator
    • Idir Ouzaid, Dr · Principal investigator
    • Evanguelos Xylinas, Dr · Sub investigator
    • Matthieu Durand, Dr · Principal investigator
    • Brannwel Tibi, Dr · Sub investigator
    • Youness Ahallal, Dr · Sub investigator
    • Simon Bernardeau, Dr · Principal investigator
    • Maxime Vallée, Dr · Sub investigator
    • Romain Huet, Dr · Principal investigator
    • Romain Haider, Dr · Sub investigator
    • Héloïse Ducousso, Dr · Sub investigator
    • Benjamin Pradère, Dr · Principal investigator
    • Thibaut Culty, Dr · Sub investigator
    Recruiting
07

References and documents

Publications

  • Kaplan SA, McConnell JD, Roehrborn CG, Meehan AG, Lee MW, Noble WR, Kusek JW, Nyberg LM Jr; Medical Therapy of Prostatic Symptoms (MTOPS) Research Group. Combination therapy with doxazosin and finasteride for benign prostatic hyperplasia in patients with lower urinary tract symptoms and a baseline total prostate volume of 25 ml or greater. J Urol. 2006 Jan;175(1):217-20; discussion 220-1. doi: 10.1016/S0022-5347(05)00041-8. PubMed 16406915 ↗
  • Rosen R, Altwein J, Boyle P, Kirby RS, Lukacs B, Meuleman E, O'Leary MP, Puppo P, Robertson C, Giuliano F. Lower urinary tract symptoms and male sexual dysfunction: the multinational survey of the aging male (MSAM-7). Eur Urol. 2003 Dec;44(6):637-49. doi: 10.1016/j.eururo.2003.08.015. PubMed 14644114 ↗
  • Thomas JA, Tubaro A, Barber N, d'Ancona F, Muir G, Witzsch U, Grimm MO, Benejam J, Stolzenburg JU, Riddick A, Pahernik S, Roelink H, Ameye F, Saussine C, Bruyere F, Loidl W, Larner T, Gogoi NK, Hindley R, Muschter R, Thorpe A, Shrotri N, Graham S, Hamann M, Miller K, Schostak M, Capitan C, Knispel H, Bachmann A. A Multicenter Randomized Noninferiority Trial Comparing GreenLight-XPS Laser Vaporization of the Prostate and Transurethral Resection of the Prostate for the Treatment of Benign Prostatic Obstruction: Two-yr Outcomes of the GOLIATH Study. Eur Urol. 2016 Jan;69(1):94-102. doi: 10.1016/j.eururo.2015.07.054. Epub 2015 Aug 15. PubMed 26283011 ↗
  • Misrai V, Roupret M, Guillotreau J, Bordier B, Bruyere F. [Greenlight((R)) photoselective vaporisation for benign prostatic hyperplasia: a systematic review]. Prog Urol. 2013 Feb;23(2):77-87. doi: 10.1016/j.purol.2012.10.013. Epub 2012 Nov 26. French. PubMed 23352299 ↗
  • Peyronnet B, Cornu JN, Roupret M, Bruyere F, Misrai V. Trends in the Use of the GreenLight Laser in the Surgical Management of Benign Prostatic Obstruction in France Over the Past 10 Years. Eur Urol. 2015 Jun;67(6):1193-1195. doi: 10.1016/j.eururo.2015.01.003. Epub 2015 Jan 17. No abstract available. PubMed 25605646 ↗
  • Ruszat R, Wyler S, Forster T, Reich O, Stief CG, Gasser TC, Sulser T, Bachmann A. Safety and effectiveness of photoselective vaporization of the prostate (PVP) in patients on ongoing oral anticoagulation. Eur Urol. 2007 Apr;51(4):1031-8; discussion 1038-41. doi: 10.1016/j.eururo.2006.08.006. Epub 2006 Aug 18. PubMed 16945475 ↗
  • Reich O, Bachmann A, Siebels M, Hofstetter A, Stief CG, Sulser T. High power (80 W) potassium-titanyl-phosphate laser vaporization of the prostate in 66 high risk patients. J Urol. 2005 Jan;173(1):158-60. doi: 10.1097/01.ju.0000146631.14200.d4. PubMed 15592063 ↗
  • Charbonneau H, Pathak A, Albenque JP, Misrai V. Greenlight photovaporization of the prostate in patients under rivaroxaban: Lesson learned after the first cases. Prog Urol. 2016 Apr;26(5):273-5. doi: 10.1016/j.purol.2016.02.002. Epub 2016 Mar 9. No abstract available. PubMed 26970929 ↗
  • Douketis JD, Spyropoulos AC, Kaatz S, Becker RC, Caprini JA, Dunn AS, Garcia DA, Jacobson A, Jaffer AK, Kong DF, Schulman S, Turpie AG, Hasselblad V, Ortel TL; BRIDGE Investigators. Perioperative Bridging Anticoagulation in Patients with Atrial Fibrillation. N Engl J Med. 2015 Aug 27;373(9):823-33. doi: 10.1056/NEJMoa1501035. Epub 2015 Jun 22. PubMed 26095867 ↗
  • Gratzke C, Bachmann A, Descazeaud A, Drake MJ, Madersbacher S, Mamoulakis C, Oelke M, Tikkinen KAO, Gravas S. EAU Guidelines on the Assessment of Non-neurogenic Male Lower Urinary Tract Symptoms including Benign Prostatic Obstruction. Eur Urol. 2015 Jun;67(6):1099-1109. doi: 10.1016/j.eururo.2014.12.038. Epub 2015 Jan 19. PubMed 25613154 ↗
  • Malek RS, Kuntzman RS, Barrett DM. High power potassium-titanyl-phosphate laser vaporization prostatectomy. J Urol. 2000 Jun;163(6):1730-3. PubMed 10799170 ↗
  • Clavien PA, Barkun J, de Oliveira ML, Vauthey JN, Dindo D, Schulick RD, de Santibanes E, Pekolj J, Slankamenac K, Bassi C, Graf R, Vonlanthen R, Padbury R, Cameron JL, Makuuchi M. The Clavien-Dindo classification of surgical complications: five-year experience. Ann Surg. 2009 Aug;250(2):187-96. doi: 10.1097/SLA.0b013e3181b13ca2. PubMed 19638912 ↗
  • Bachmann A, Tubaro A, Barber N, d'Ancona F, Muir G, Witzsch U, Grimm MO, Benejam J, Stolzenburg JU, Riddick A, Pahernik S, Roelink H, Ameye F, Saussine C, Bruyere F, Loidl W, Larner T, Gogoi NK, Hindley R, Muschter R, Thorpe A, Shrotri N, Graham S, Hamann M, Miller K, Schostak M, Capitan C, Knispel H, Thomas JA. 180-W XPS GreenLight laser vaporisation versus transurethral resection of the prostate for the treatment of benign prostatic obstruction: 6-month safety and efficacy results of a European Multicentre Randomised Trial--the GOLIATH study. Eur Urol. 2014 May;65(5):931-42. doi: 10.1016/j.eururo.2013.10.040. Epub 2013 Nov 11. PubMed 24331152 ↗
  • Peyronnet B, Pradere B, Brichart N, Bodin T, Bertrand P; Members of French Group of GreenLight Users; Bruyere F. Complications associated with photoselective vaporization of the prostate: categorization by a panel of GreenLight users according to Clavien score and report of a single-center experience. Urology. 2014 Sep;84(3):657-64. doi: 10.1016/j.urology.2014.05.028. PubMed 25168547 ↗
  • Charbonneau H, Pasquie M, Peyronnet B, Descazeaud A, Barry-Delongchamps N, Della Negra E, Mathieu R, Karsenty G, Long JA, Ballereau C, Azzouzi AR, Pradere B, Bruyere F, Fournier G, Lebdai S, Calves J, Corbel L, Vincendeau S, Fiard G, Thuillier C, Descotes JL, Colin P, Culty T, Hesbois A, Fuzier V, Savy N, Pathak A, Albaladejo P, Samama CM, Guerrero F, Misrai V. Stopping or maintaining oral anticoagulation in patients undergoing photoselective vaporization of the prostate (SOAP) surgery for benign prostate obstruction: study protocol for a multicentre randomized controlled trial. Trials. 2018 Dec 27;19(1):705. doi: 10.1186/s13063-018-3066-9. PubMed 30587221 ↗
08

Registry details

Key details

Study ID
NCT03297281
Lead sponsor
Clinique Pasteur
Collaborators
Boston Scientific Corporation, IQVIA Pty Ltd
Responsible party
Sponsor
First posted
Sep 29, 2017
Start date
Oct 30, 2017
Primary completion
Nov 30, 2027 (estimated)
Completion
May 31, 2028 (estimated)
Last update
Mar 6, 2026

Study contacts

Vincent Misraï, Dr
Contact
vmisrai@clinique-pasteur.com
05 62 21 33 26
Vincent Misrai, Dr
principal investigator · Clinique Pasteur

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Interested in this study?

Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.

Contact study team

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion