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Trackers› Clinical trials› Hoofddorp
Clinical trial register · Netherlands

Clinical Trials in Hoofddorp, 2026

Every study on the ClinicalTrials.gov registry that lists a site in Netherlands and is open, about to open, active-but-closed, or enrolling by invitation. Filter it, cite it, and take it away as a file.

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Source: ClinicalTrials.gov, U.S. National Library of Medicine. Complete coverage — all 3171 matching records held by the registry are in this view. Synced 10 Nov 2026, 03:17 UTC
3171
Studies in scope
all four open statuses
1789
Recruiting now
open to new participants
601
Lead sponsors
across recruiting studies
Top sites
Amsterdam 1239 Rotterdam 853 Groningen 601 Nijmegen 565 Utrecht 543
Narrow the registerReset
Recruitment status
Phase
Lead sponsor
AstraZeneca5 Merck Sharp & Dohme LLC4 Spaarne Gasthuis4 Janssen Research & Development, LLC3 Novartis Pharmaceuticals2 Amsterdam UMC, location VUmc2 Karyopharm Therapeutics Inc2 Novo Nordisk A/S2 Stichting Hemato-Oncologie voor Volwassenen Nederland2 GlaxoSmithKline2 Leiden University Medical Center2 Aragon Pharmaceuticals, Inc.1 The Netherlands Cancer Institute1 Bayer1 UNICANCER1 Isabelle Henskens1 Liselot Ribbert1 Pfizer1 Italfarmaco1 Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)1 Eli Lilly and Company1 Sanofi1
Site location
Amsterdam1239 Rotterdam853 Groningen601 Nijmegen565 Utrecht543 Maastricht420 Leiden385 Eindhoven208 Arnhem182 Breda172 Nieuwegein149 The Hague121 's-Hertogenbosch119 Tilburg114 Zwolle109 Enschede107 Dordrecht103 Amersfoort96 Leeuwarden87 Alkmaar86 Heerlen65 Delft60 Deventer59 Apeldoorn52 Almelo51 Ede50 Almere Stad49 Hilversum42 Hoofddorp41 Harderwijk39 Veldhoven26 Beverwijk22 Haarlem22 Venlo21 Doetinchem20 Sittard-Geleen18 Amstelveen18 Emmen17 Geleen16 Wageningen16 Hengelo16 Leidschendam15 Gouda14 Helmond14 Hoorn14 Goes14 Leiderdorp13 Assen13 Roosendaal13 Sittard12 Dirksland12 Uden12 Schiedam11 Amsterdam-Zuidoost11 Geldrop10 Sneek9 Heeze9 Zutphen9 Capelle aan den IJssel8 Bergen op Zoom8 Bilthoven7 Zaandam7 Hoogeveen7 Blaricum7 Zoetermeer6 Terneuzen6 Halsteren6 Zwijndrecht5 Born5 Scheemda5 Heemstede5 Ubbergen5 Tiel5 Boxmeer4 Drachten4 Multiple Locations4 Zeist4 Boekel3 GE Rotterdam3 Roermond3 Oegstgeest3 Velp3 Heerenveen3 Brunssum2 Flushing2 Waalwijk2 Warnsveld2 Gorinchem2 Purmerend2 Oss2 Hardenberg2 Doorn2 Heerjansdam1 Mill1 Hoensbroek1 Woerden1 Eersel1 Rosmalen1 Valkenswaard1 Vlijmen1 Amsterdam, Noord-Holland1 Zuidlaren1 Balkbrug1 Goes/Vlissingen1 Deurne1 Leuven1 Friesland1 Many Locations1 Den Helder1 Heerhugowaard1 Westzeedijk 3531 Holland1 Zeeland1 Winterswijk1 Weert1 Haps1 Valkenburg1 Heemskerk1 EJ Eindhoven1 Zetten1 Ermelo1 Waalre1 Venray1 Wijk aan Zee1 Sgravenhage1 Doedrecht1 Geert Grooteplein-Zuid 81 Diemen1 HEERLENHeerlen1 Apeldoorn & Zutphen1 Eindhoven & Veldhoven1 Groningen de Brug1 Alphen aan den Rijn1 Hazerswoude-Rijndijk1 's-Gravenhage (Den Haag, the Hague)1 Beek1 Santpoort-Noord1 Maastrich1 Hoogenveen, Emmen, Stadskanaal1 Zutphens1 Baarn1 Meppel1 Beetsterzwaag1 Groesbeek1 Rotterrdam1 Etten-Leur1 Sittard Geleen1 Nederland1 Hengstdal1 Rijswijk1 Limburg1 Lochem1 IJsselstein1 Vianen1 Naarden1 Elst1 Schiphol1 Christchurch1 Lower Hutt1 Tauranga1 Wellington1 Vught1 Almere1 NL -rotterdam1
All 164 locations
Target enrolment
to

Trials with a site in Hoofddorp

41 of 3171 studies
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Status
Study
Lead sponsor
Phase
Enrol
Sites in Netherlands
Start
Recruiting
Novo Nordisk A/S
Phase 3
2,500
Born, 's-Hertogenbosch, Arnhem, Eindhoven, Hoofddorp, Hoogeveen, Rotterdam, The Hague
2026-05-21
Recruiting
GlaxoSmithKline
Phase 2
200
Amersfoort, Hoofddorp, The Hague
2026-04-15
Recruiting
UNICANCER
Phase 3
3,902
Arnhem, Hilversum, Hoofddorp, Leeuwarden, Leiden, Venlo
2025-12-18
Recruiting
Sanofi
Phase 4
218
Groningen, Hoofddorp, Nijmegen, Rotterdam
2025-09-22
Recruiting
Janssen Research & Development, LLC
Phase 3
1,203
Delft, Groningen, Hilversum, Hoofddorp, Maastricht, Nijmegen, Rotterdam, Zwolle
2025-09-02
Recruiting
Early Versus Delayed Trial Without Catheter in Men With Acute Urinary Retention.
NCT07283484Acute Urinary Retention, Benign Prostate Obstruction, Benign Prostate Hyperplasia, Benign Prostate Hypertrophy(BPH)
Liselot Ribbert
Not applicable
478
Harderwijk, Nijmegen, Heerlen, Maastricht, Eindhoven, Amsterdam, Hoofddorp, Hengelo
2025-08-21
Recruiting
AstraZeneca
Phase 3
700
Hilversum, Hoofddorp, Maastricht, Nijmegen, Roosendaal
2025-08-06
Active, closed
Novartis Pharmaceuticals
Phase 2
168
Zwolle, Dordrecht, Hoofddorp
2025-07-07
Active, closed
Novartis Pharmaceuticals
Phase 2
138
Nijmegen, Hoofddorp
2025-07-03
Recruiting
Poly vs Hybrid Glenoid in Stemless aTSA
NCT07520721Glenohumeral Osteoarthritis
Spaarne Gasthuis
Not applicable
94
Hoofddorp
2025-06-30
Recruiting
GlaxoSmithKline
Phase 3
981
Zutphen, Breda, Zwolle, Deventer, Enschede, Harderwijk, Hoofddorp, Nijmegen
2025-06-20
Recruiting
Merck Sharp & Dohme LLC
Phase 3
1,440
Nijmegen, Maastricht, Venlo, Amsterdam, Hilversum, Hoofddorp, Hengelo, Rotterdam
2025-05-13
Recruiting
Implementation of Indocyanine Green to Identify Sentinel Lymph Nodes During Surgery for Breast Cancer
NCT07146295Breast Cancer, Sentinel Lymph Node Biopsy (SLNB), Sentinel Lymph Node Detection, Sentinel Lymph Node
DrugIndocyanine Green
Isabelle Henskens
Not applicable
1,760
Alkmaar, Hengelo, Hoofddorp, Hoorn, Leiden, Nijmegen, Utrecht
2025-04-18
Recruiting
Spaarne Gasthuis
Phase 3
752
Heerlen, Veldhoven, Alkmaar, Beverwijk, Hoofddorp, Hoorn, Zaandam, Almelo
2025-02-24
Active, closed
Brief-intensive CBT Versus Once-weekly CBT in Anxiety-related Disorders
NCT05942391Anxiety Disorders, Obsessive-Compulsive Disorder, Posttraumatic Stress Disorder, Hypochondriasis
Amsterdam UMC, location VUmc
Not applicable
120
Amstelveen, Amsterdam, Haarlem, Hilversum, Hoofddorp, Utrecht
2024-04-26
Recruiting
Karyopharm Therapeutics Inc
Phase 2
58
Hoofddorp
2024-04-22
Recruiting
Italfarmaco
Phase 3
220
Hoofddorp, Enschede, Dordrecht
2024-03-26
Active, closed
Stage II-IIIa Urothelial Cancer Randomizing Pre-operative Nivolumab With or Without Relatlimab
NCT06237920Urologic Neoplasms, Urogenital Neoplasms, Neoplasms by Site, Neoplasms
DrugsRelatlimab·Opdivo·Nivolumab
The Netherlands Cancer Institute
Phase 2
90
Arnhem, Nijmegen, Amsterdam, Hoofddorp, Zwolle, Leiden, Rotterdam, Utrecht
2024-02-19
Active, closed
Merck Sharp & Dohme LLC
Phase 3
340
Hoofddorp, Dordrecht, Groningen
2023-12-31
Recruiting
Merck Sharp & Dohme LLC
Phase 3
1,310
Nijmegen, Sittard-Geleen, Venlo, Tilburg, Amsterdam, Hoofddorp, Leeuwarden, Schiedam
2023-12-31
Active, closed
Stichting Hemato-Oncologie voor Volwassenen Nederland
Phase 2
75
Amersfoort, Amsterdam, Arnhem, Eindhoven, Goes, Groningen, Hoofddorp, Leeuwarden
2023-07-14
Recruiting
Rifampicin Combination Therapy Versus Monotherapy for Staphylococcal Prosthetic Joint Infection
NCT06172010Prosthetic-joint Infection, Infection Hip, Infection; Knee, Joint
DrugClindamycin
Leiden University Medical Center
Phase 4
316
Leiden, Amsterdam, Groningen, Hoofddorp, Leeuwarden, Leiderdorp, Nijmegen, Rotterdam
2023-04-01
Recruiting
AstraZeneca
Phase 3
4,300
Dirksland, Geleen, Groningen, Hoofddorp, Rotterdam
2023-03-31
Active, closed
Janssen Research & Development, LLC
Phase 3
1,135
Hoofddorp, Nijmegen
2023-03-23
Active, closed
The UPDATE Trial (Uvb Phototherapy in Dermatology for ATopic Eczema)
NCT05704205Atopic Dermatitis Eczema, Atopic Dermatitis
Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
Not applicable
316
Almere Stad, 's-Hertogenbosch, Alkmaar, Amsterdam, Haarlem, Hoofddorp, Purmerend, Zwolle
2023-02-22
Recruiting
Amsterdam UMC, location VUmc
Phase 4
258
Almere Stad, Arnhem, Nijmegen, 's-Hertogenbosch, Amsterdam, Hoofddorp, Groningen, Gouda
2022-12-02
Recruiting
Leiden University Medical Center
Phase 2
168
Nijmegen, Hoofddorp, Zwolle, Gouda, Leiden, Amersfoort, Groningen
2022-11-10
Active, closed
ALknee Follow-up Study of the Cementless ATTUNE Rotating Platform and the Cementless LCS Rotating Platform Knee System
NCT05623215Total Knee Arthroplasty, Total Knee Replacement, Knee Osteoarthritis
Spaarne Gasthuis
Observational
49
Hoofddorp
2022-11-10
Active, closed
Novo Nordisk A/S
Phase 3
3,400
Amsterdam, Arnhem, Hoofddorp, Roosendaal, Zwijndrecht
2022-11-01
Active, closed
Eli Lilly and Company
Phase 3
8,000
Assen, Breda, Delft, Deventer, Dordrecht, Hengelo, Hoofddorp, Maastricht
2022-10-04
Active, closed
AstraZeneca
Phase 3
1,035
Hoofddorp, The Hague
2022-03-25
Active, closed
Merck Sharp & Dohme LLC
Phase 3
1,800
Arnhem, Nijmegen, Maastricht, Breda, Eindhoven, Amsterdam, Hilversum, Hoofddorp
2022-03-15
Active, closed
Pfizer
Phase 3
38,861
Amersfoort, Amsterdam, Eindhoven, Groningen, Helmond, Hoofddorp, Nieuwegein, Rotterdam
2021-08-31
Active, closed
AstraZeneca
Phase 3
712
Arnhem, Breda, Groningen, Hoofddorp, Leiden, Utrecht
2021-08-05
Active, closed
Karyopharm Therapeutics Inc
Phase 3
353
Hoofddorp, Groningen
2021-03-11
Active, closed
Bayer
Phase 3
774
Geleen, Tilburg, Amsterdam, Hilversum, Hoofddorp, Dordrecht, The Hague
2020-10-20
Recruiting
The ATtune Knee Outcome Study
NCT04247672Osteoarthritis, Knee, Knee Osteoarthritis, Knee Rheumatism, Rheumatoid Arthritis
Spaarne Gasthuis
Observational
900
Hoofddorp
2020-02-03
Active, closed
Stichting Hemato-Oncologie voor Volwassenen Nederland
Phase 2
58
's-Hertogenbosch, Amsterdam, Hoofddorp, Leeuwarden, Nijmegen, Rotterdam, Sittard, Utrecht
2018-11-19
Active, closed
Janssen Research & Development, LLC
Phase 3
211
Almere Stad, Amsterdam, Delft, Dordrecht, Eindhoven, Hoofddorp, Sittard-Geleen, Sneek
2018-04-17
Active, closed
AstraZeneca
Phase 3
682
Amsterdam, Arnhem, Hoofddorp, Zwolle
2015-10-21
Active, closed
Aragon Pharmaceuticals, Inc.
Phase 3
1,207
Alkmaar, Eindhoven, Hoofddorp, Leidschendam, Nijmegen, Rotterdam
2013-10-14
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Cite this view

Priya Life Science (2026). Clinical trial register: studies with a Dutch investigative site, filtered. Derived from ClinicalTrials.gov. Retrieved 12 November 2026. https://priyalifescience.com/clinical-trials-netherlands/city/hoofddorp

Query this register directly
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About this register

This register is built from ClinicalTrials.gov, the trial registry run by the U.S. National Library of Medicine. It includes every study on the registry that lists at least one investigative site in Netherlands and is recruiting, not yet recruiting, active but no longer recruiting, or enrolling by invitation: 3,171 studies in total at the last sync on 10 Nov 2026, 03:17 UTC. The full list can be downloaded as CSV or queried as JSON through the register API.

This page shows the 41 of those studies with a site in Hoofddorp.

How many clinical trials are recruiting in Hoofddorp?

20 of the 41 studies on this page are recruiting new participants as of the 10 Nov 2026, 03:17 UTC sync. A further 0 have not yet opened recruitment, 21 are active but closed to new participants, and 0 are enrolling by invitation only. Eligibility for any study is decided by its study team.

Summary by phase

Studies by phase (Hoofddorp), 41 studies
PhaseStudiesRecruitingShare
Phase 3231056.1%
Phase 28319.5%
Not applicable5312.2%
Phase 4337.3%
Observational214.9%

Most active sponsors

Lead sponsors with the most studies (Hoofddorp)
Lead sponsorStudiesRecruiting
AstraZeneca52
Merck Sharp & Dohme LLC42
Spaarne Gasthuis43
Janssen Research & Development, LLC31
Amsterdam UMC, location VUmc21
GlaxoSmithKline22
Karyopharm Therapeutics Inc21
Leiden University Medical Center22
Novartis Pharmaceuticals20
Novo Nordisk A/S21
Listing here is informational and not medical advice; eligibility is determined by each study team. See also the Ireland, UK, EU, USA and China registers.