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Trackers› Clinical trials› Naples
Clinical trial register · Italy

Clinical Trials in Naples, 2026

Every study on the ClinicalTrials.gov registry that lists a site in Italy 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 6791 matching records held by the registry are in this view. Synced 11 Oct 2026, 03:19 UTC
6791
Studies in scope
all four open statuses
4079
Recruiting now
open to new participants
1019
Lead sponsors
across recruiting studies
Top sites
Milan 98 Roma 43 Rome 40 Naples 40 Rozzano 27
Narrow the registerReset
Recruitment status
Phase
Lead sponsor
AstraZeneca79 Hoffmann-La Roche48 Merck Sharp & Dohme LLC40 Bristol-Myers Squibb37 National Cancer Institute, Naples36 Clear sponsor filter
Site location
Milan98 Roma43 Rome40 Naples40 Rozzano27
All 66 locations
Target enrolment
to

Trials with a site in Naples

40 of 6791 studies
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Status
Study
Lead sponsor
Phase
Enrol
Sites in Italy
Start
Recruiting
Merck Sharp & Dohme LLC
Phase 3
904
Naples, Rome, Milan, Rozzano, Orbassano, Florence, Castelfranco Veneto, Peschiera del Garda
2025-11-26
Recruiting
Merck Sharp & Dohme LLC
Phase 3
1,000
Bergamo, Milan, Naples, Roma
2025-07-21
Recruiting
Merck Sharp & Dohme LLC
Phase 3
477
Monserrato, Milan, Naples, Padova, Ravenna, Verona
2025-07-16
Recruiting
Merck Sharp & Dohme LLC
Phase 1/2
360
Orbassano, Brescia, Milan, Naples, Roma
2025-07-03
Recruiting
Merck Sharp & Dohme LLC
Phase 2
160
Milan, Naples, Padova, Roma
2025-05-29
Recruiting
Merck Sharp & Dohme LLC
Phase 3
1,123
Meldola, Milan, Catania, Florence, Naples, Pisa, Roma, Torino
2025-05-22
Recruiting
Merck Sharp & Dohme LLC
Phase 2
594
Meldola, Rozzano, Palermo, Alessandria, Milan, Naples, Reggio Emilia
2025-04-11
Recruiting
Merck Sharp & Dohme LLC
Phase 3
770
Aviano, Milan, Pisa, Bari, Brescia, Naples, Padova, Roma
2025-04-09
Recruiting
Merck Sharp & Dohme LLC
Phase 3
680
Catanzaro, Ravenna, Rome, Milan, Naples, Padova, Verona
2024-10-21
Active, closed
Merck Sharp & Dohme LLC
Phase 3
686
Bologna, Milan, Monza, Rozzano, Turin, Brescia, Catania, Naples
2024-07-24
Active, closed
Merck Sharp & Dohme LLC
Phase 1/2
38
Milan, Naples
2024-07-17
Recruiting
Merck Sharp & Dohme LLC
Phase 3
1,530
Naples, Misterbianco, Meldola (FC), Aviano, Rome, Brescia, Milan, Monza
2024-06-24
Recruiting
Merck Sharp & Dohme LLC
Phase 3
851
Naples, Rome, Milan, Monza, Rozzano, Brescia, Genova, Novara
2024-06-10
Recruiting
Merck Sharp & Dohme LLC
Phase 3
1,200
Bari, Monserrato, Rome, Milan, Rozzano, Naples, Turin, Pontedera
2024-06-05
Recruiting
Merck Sharp & Dohme LLC
Phase 3
348
Naples, Ravenna, Aviano, Rome, Milan, Livorno, Padova
2024-05-24
Active, closed
Merck Sharp & Dohme LLC
Phase 3
450
Naples, Rome, Milan, Pisa
2024-05-03
Active, closed
Merck Sharp & Dohme LLC
Phase 1/2
230
Rome, Genoa, Milan, Naples
2024-03-28
Active, closed
Merck Sharp & Dohme LLC
Phase 3
868
Bari, Aviano, Udine, Milan, Naples, Perugia, Catania, Cuneo
2023-12-06
Active, closed
Merck Sharp & Dohme LLC
Phase 3
1,109
Monserrato, San Giovanni Rotondo, Rome, Milan, Rozzano, Rho, Naples, Palermo
2023-10-25
Active, closed
Merck Sharp & Dohme LLC
Phase 3
1,089
Milan, Siena, Perugia, Naples
2023-07-19
Active, closed
Merck Sharp & Dohme LLC
Phase 1/2
390
Naples, Milan
2023-06-23
Active, closed
Merck Sharp & Dohme LLC
Phase 3
614
Rome, Bergamo, Milan, Naples, Florence, Peschiera del Garda, Parma
2023-02-06
Recruiting
Merck Sharp & Dohme LLC
Phase 1/2
48
Milan, Naples
2022-11-16
Active, closed
Merck Sharp & Dohme LLC
Phase 3
460
Naples, Milan, Rozzano, Rome
2022-03-24
Active, closed
Merck Sharp & Dohme LLC
Phase 3
280
Naples, Bologna, Meldola, Milan, Turin, Rome, Florence, Vicenza
2022-02-03
Recruiting
Merck Sharp & Dohme LLC
Phase 2/3
290
Rozzano, Bologna, Naples, Roma
2022-01-14
Recruiting
Merck Sharp & Dohme LLC
Phase 1
830
Rozzano, Siena, Naples
2021-12-17
Recruiting
Merck Sharp & Dohme LLC
Phase 2
355
Naples, Milan, Siena, Bologna, Brescia, Verona
2021-08-12
Active, closed
Merck Sharp & Dohme LLC
Phase 2
302
Milan, Naples, Padova
2021-06-25
Active, closed
Merck Sharp & Dohme LLC
Phase 3
342
Rome, Milan, Monza, Rozzano, Bari, Catania, Naples, Padova
2021-06-18
Active, closed
Merck Sharp & Dohme LLC
Phase 3
815
Monza, Milan, Rome, Naples
2021-05-12
Active, closed
Merck Sharp & Dohme LLC
Phase 3
1,688
Modena, Rome, Bari, Milan, Naples, Terni
2021-04-14
Recruiting
Efficacy and Safety of Nemtabrutinib (MK-1026) in Participants With Hematologic Malignancies (MK-1026-003)
NCT04728893Hematologic Malignancies, Waldenstroms Macroglobulinaemia, Non-Hodgkins Lymphoma, Chronic Lymphocytic Leukaemia
DrugNemtabrutinib
Merck Sharp & Dohme LLC
Phase 2
490
Bari, Bologna, Brescia, Milan, Naples, Pavia, Reggio Emilia, Roma
2021-04-05
Active, closed
Merck Sharp & Dohme LLC
Phase 3
990
Roma, Rome, Milan, Candiolo, Brescia, Naples, Padova
2021-01-10
Active, closed
Merck Sharp & Dohme LLC
Phase 3
520
Bari, Rome, Milan, Florence, Modena, Naples, Province of Macerata
2020-05-19
Active, closed
Merck Sharp & Dohme LLC
Phase 3
595
Roma, Orbassano, Vicenza, Arezzo, Catania, Milan, Naples, Pavia
2019-07-24
Active, closed
Merck Sharp & Dohme LLC
Phase 2
329
Naples, Rozzano, Siena
2018-12-12
Active, closed
Merck Sharp & Dohme LLC
Phase 3
976
Meldola, Bari, Bergamo, Genova, Milan, Naples, Padova, Roma
2018-09-12
Active, closed
Merck Sharp & Dohme LLC
Phase 3
797
Milano, Naples, Meldola, Rozzano, Milan, Monza, Orbassano, Brescia
2018-04-24
Active, closed
Merck Sharp & Dohme LLC
Phase 2
340
Roma, Aviano, Naples, Torino
2018-04-09
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Cite this view

Priya Life Science (2026). Clinical trial register: studies with an Italian investigative site, filtered. Derived from ClinicalTrials.gov. Retrieved 11 October 2026. https://priyalifescience.com/clinical-trials-italy/city/naples

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 Italy and is recruiting, not yet recruiting, active but no longer recruiting, or enrolling by invitation: 6,791 studies in total at the last sync on 11 Oct 2026, 03:19 UTC. The full list can be downloaded as CSV or queried as JSON through the register API.

This page shows the 40 of those studies with a site in Naples that also match the filters currently applied.

How many clinical trials are recruiting in Naples?

18 of the 40 studies on this page are recruiting new participants as of the 11 Oct 2026, 03:19 UTC sync. A further 0 have not yet opened recruitment, 22 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 (Naples), 40 studies
PhaseStudiesRecruitingShare
Phase 3261065%
Phase 27417.5%
Phase 1/25212.5%
Phase 1112.5%
Phase 2/3112.5%

Most active sponsors

Lead sponsors with the most studies (Naples)
Lead sponsorStudiesRecruiting
Merck Sharp & Dohme LLC4018
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.