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Trackers› Clinical trials› Paris
Clinical trial register · France

Clinical Trials in Paris, 2026

Every study on the ClinicalTrials.gov registry that lists a site in France 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 9697 matching records held by the registry are in this view. Synced 26 Oct 2026, 03:20 UTC
9697
Studies in scope
all four open statuses
6025
Recruiting now
open to new participants
1033
Lead sponsors
across recruiting studies
Top sites
Paris 51 Lille 43 Nantes 35 Lyon 33 Marseille 25
Narrow the registerReset
Recruitment status
Phase
Lead sponsor
Assistance Publique - Hôpitaux de Paris602 Novartis Pharmaceuticals68 Fondation Ophtalmologique Adolphe de Rothschild66 AstraZeneca64 Institut National de la Santé Et de la Recherche Médicale, France63 Clear sponsor filter
Site location
Paris51 Lille43 Nantes35 Lyon33 Marseille25
All 67 locations
Target enrolment
to

Trials with a site in Paris

51 of 9697 studies
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Status
Study
Lead sponsor
Phase
Enrol
Sites in France
Start
Recruiting
Janssen Research & Development, LLC
Phase 3
530
Amiens, Clermont-Ferrand, Échirolles, Marseille, Nantes, Neuilly-sur-Seine, Nîmes, Paris
2026-04-21
Recruiting
Janssen Research & Development, LLC
Phase 3
600
Caen, La Tronche, Le Mans, Lyon, Paris, Toulouse
2026-03-05
Recruiting
Janssen Research & Development, LLC
Phase 3
400
Lille, Lyon, Nancy, Nantes, Paris, Pessac, Poitiers, Toulouse
2026-02-04
Recruiting
Janssen Research & Development, LLC
Phase 1
340
Lille, Paris, Pierre-Bénite, Toulouse
2026-01-20
Recruiting
Janssen Research & Development, LLC
Phase 3
800
Bordeaux, Clermont-Ferrand, Lille, Lyon, Nîmes, Paris, Rennes, Villejuif
2025-12-19
Recruiting
Janssen Research & Development, LLC
Phase 3
500
Avignon, Le Mans, Lille, Marseille, Paris, Rouen, Saint-Herblain, Villejuif
2025-12-03
Recruiting
Janssen Research & Development, LLC
Phase 3
220
Marseille, Paris, Quint-Fonsegrives, Saint-Grégoire, Villejuif
2025-09-10
Recruiting
Janssen Research & Development, LLC
Phase 3
1,203
Bordeaux, Brest, Dijon, Lille, Lyon, Paris, Pierre-Bénite, Saint-Herblain
2025-09-02
Recruiting
Janssen Research & Development, LLC
Phase 3
600
Angers, Clermont-Ferrand, Lille, Marseille, Montpellier, Nice, Paris, Pierre-Bénite
2025-06-04
Recruiting
Janssen Research & Development, LLC
Phase 3
39
Lille, Paris
2024-11-11
Recruiting
Janssen Research & Development, LLC
Phase 3
1,000
Avignon, Lille, Lyon, Montpellier, Nantes, Paris, Pessac, Poitiers
2024-10-18
Active, closed
Janssen Research & Development, LLC
Phase 2
333
Clermont-Ferrand, Nantes, Paris, Pierre-Bénite, Reims, Strasbourg
2024-05-30
Recruiting
Janssen Research & Development, LLC
Phase 1/2
287
Avignon, Lille, Nantes, Paris, Villejuif
2024-04-22
Recruiting
Janssen Research & Development, LLC
Phase 3
641
Lille, Limoges, Lyon, Marseille, Paris, Quint-Fonsegrives, Rennes, Toulouse
2024-04-18
Active, closed
Janssen Research & Development, LLC
Phase 3
272
Lille, Limoges, Marseille, Paris, Quint-Fonsegrives, Rennes, Suresnes
2024-04-09
Recruiting
Janssen Research & Development, LLC
Phase 3
120
Amiens, Lille, Paris
2024-03-13
Active, closed
Janssen Research & Development, LLC
Phase 2
305
Marseille, Nice, Paris
2024-02-16
Active, closed
Janssen Research & Development, LLC
Phase 3
838
Lille, Limoges, Lyon, Marseille, Nantes, Paris, Pessac, Strasbourg
2024-01-22
Active, closed
Janssen Research & Development, LLC
Phase 3
112
Bron, Dijon, Lille, Paris, Toulouse
2024-01-19
Recruiting
Janssen Research & Development, LLC
Phase 1
300
Paris, Pierre-Bénite, Toulouse
2023-12-20
Recruiting
Janssen Research & Development, LLC
Phase 3
120
Bron, Lille, Paris
2023-12-20
Active, closed
Janssen Research & Development, LLC
Phase 3
420
Bordeaux, Lyon, Paris, Rennes, Villejuif
2023-08-31
Active, closed
Janssen Research & Development, LLC
Phase 2
68
Brest, Lyon, Paris, Rouen, Strasbourg
2023-05-18
Active, closed
Janssen Research & Development, LLC
Phase 3
614
Amiens, Caen, Grenoble, Le Mans, Lille, Montpellier, Nantes, Paris
2023-03-29
Active, closed
Janssen Research & Development, LLC
Phase 3
213
Caen, Nantes, Paris, Pessac
2022-12-15
Recruiting
Janssen Research & Development, LLC
Phase 2
520
Caen, Dijon, Nîmes, Paris, Saint-Herblain, Villejuif
2022-11-11
Recruiting
Janssen Research & Development, LLC
Phase 3
1,590
Créteil, Lille, Lyon, Nantes, Paris, Pessac, Poitiers, Rennes
2022-10-25
Active, closed
Janssen Research & Development, LLC
Phase 3
864
Créteil, Dijon, Lyon, Montpellier, Nantes, Nice, Paris, Pessac
2022-10-13
Recruiting
Janssen Research & Development, LLC
Phase 2/3
201
Bordeaux, Bron, Le Kremlin-Bicêtre, Marseille, Nice, Nîmes, Paris, Strasbourg
2022-09-23
Active, closed
Janssen Research & Development, LLC
Phase 1
167
Lille, Paris, Strasbourg, Toulouse
2022-08-18
Active, closed
Janssen Research & Development, LLC
Phase 2
36
Nice, Paris, Strasbourg
2022-07-05
Recruiting
Janssen Research & Development, LLC
Phase 4
295
Nord, Paris
2022-03-09
Active, closed
Janssen Research & Development, LLC
Phase 3
350
Bayonne, Besançon, Colombes, Nantes, Nice, Paris, Pierre-Bénite, Reims
2022-01-19
Active, closed
Janssen Research & Development, LLC
Phase 3
776
Avignon, Bron, La Tronche, Le Mans, Lille, Marseille, Montpellier, Paris
2021-11-17
Active, closed
A Long-term Extension Study of Ustekinumab in Pediatric Participants
NCT05092269Crohn Disease, Colitis, Ulcerative, Arthritis, Psoriatic
DrugUstekinumab
Janssen Research & Development, LLC
Phase 3
159
Paris
2021-10-18
Active, closed
Janssen Research & Development, LLC
Phase 3
743
Lille, Nantes, Paris, Poitiers, Toulouse
2021-08-19
Recruiting
Janssen Research & Development, LLC
Phase 3
199
Bron, Grenoble, Paris, Provence-Alpes-Côte d'Azur
2021-07-15
Recruiting
Janssen Research & Development, LLC
Phase 1/2
420
Besançon, Marseille, Nantes, Paris, Pessac, Pierre-Bénite, Strasbourg, Toulouse
2021-05-19
Active, closed
Janssen Research & Development, LLC
Phase 3
308
Bordeaux, Bron, Dijon, Le Mans, Lille, Nantes, Paris, Pessac
2020-10-13
Active, closed
Janssen Research & Development, LLC
Phase 3
1,074
Bordeaux, Bron, La Tronche, Lille, Limoges, Marseille, Paris, Pessac
2020-09-30
Active, closed
Janssen Research & Development, LLC
Phase 3
419
Lille, Lyon, Montpellier, Nantes, Paris, Poitiers, Toulouse
2020-06-12
Active, closed
Janssen Research & Development, LLC
Phase 2
208
Lille, Nantes, Paris
2019-11-07
Active, closed
Janssen Research & Development, LLC
Phase 2/3
1,064
Caen, Clichy, Lille, Montpellier, Nice, Paris, Pessac, Pierre-Bénite
2019-09-26
Active, closed
Janssen Research & Development, LLC
Phase 1
701
Bordeaux, Lyon, Marseille, Paris, Poitiers, Saint-Mandé, Villejuif
2019-09-04
Active, closed
Janssen Research & Development, LLC
Phase 3
2,517
Angers, Besançon, Bordeaux, Créteil, Lyon, Nantes, Paris, Quint-Fonsegrives
2019-06-11
Active, closed
Janssen Research & Development, LLC
Phase 3
765
Besançon, Bordeaux, Clermont-Ferrand, Lyon, Montpellier, Nancy, Nice, Paris
2019-01-25
Active, closed
Janssen Research & Development, LLC
Phase 3
84
Bordeaux, Paris
2018-10-29
Active, closed
Janssen Research & Development, LLC
Phase 1/2
125
Angers, Bordeaux, Caen, La Rochelle, Lyon, Marseille, Paris, Strasbourg
2018-04-05
Active, closed
Janssen Research & Development, LLC
Phase 1
751
Bordeaux, Dijon, Lyon, Marseille, Paris, Saint-Herblain, Villejuif
2016-05-24
Active, closed
Janssen Research & Development, LLC
Phase 2
239
Angers, Bordeaux, Caen Cédex 05, Dijon, Lyon, Nice, Nîmes, Paris
2015-04-22
Active, closed
A Long-term Extension Study of PCI-32765 (Ibrutinib)
NCT01804686Chronic Lymphocytic Leukemia, Small Lymphocytic Lymphoma, Mantle Cell Lymphoma, Follicular Lymphoma
DrugIbrutinib
Janssen Research & Development, LLC
Phase 3
539
Créteil, Mulhouse, Paris, Pessac, Pierre-Bénite, Tours
2013-09-09
Rows per page Showing 1–51 of 51
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Cite this view

Priya Life Science (2026). Clinical trial register: studies with a French investigative site, filtered. Derived from ClinicalTrials.gov. Retrieved 26 October 2026. https://priyalifescience.com/clinical-trials-france/city/paris

Query this register directly
GET /api/trials?country=in&status=recruiting&format=json Try it now →

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 France and is recruiting, not yet recruiting, active but no longer recruiting, or enrolling by invitation: 9,697 studies in total at the last sync on 26 Oct 2026, 03:20 UTC. The full list can be downloaded as CSV or queried as JSON through the register API.

This page shows the 51 of those studies with a site in Paris that also match the filters currently applied.

How many clinical trials are recruiting in Paris?

22 of the 51 studies on this page are recruiting new participants as of the 26 Oct 2026, 03:20 UTC sync. A further 0 have not yet opened recruitment, 29 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 (Paris), 51 studies
PhaseStudiesRecruitingShare
Phase 3331564.7%
Phase 27113.7%
Phase 1529.8%
Phase 1/2325.9%
Phase 2/3213.9%
Phase 4112%

Most active sponsors

Lead sponsors with the most studies (Paris)
Lead sponsorStudiesRecruiting
Janssen Research & Development, LLC5122
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.