ClinicalTrials.gg
RecruitingNCT07405164Updated Oct 21, 2026

Extension Study for Participants in Studies That Include Belzutifan (MK-6482-043/LITESPARK-043)

A Phase 3 interventional study of Belzutifan and Nivolumab in Von Hippel-Lindau Disease and Malignant Neoplasms, sponsored by Merck Sharp & Dohme LLC. Recruiting at 57 sites in 22 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-21.

Sponsored by Merck Sharp & Dohme LLC (part of Merck & Co., Inc) · Phase 3, Interventional, and Treatment

From the registry’s dates

  • Started Mar 2026; still recruiting 7 months later.
Updated Oct 21, 20264 sites added1 site removedGo to Updates ↓
Phase
Phase 3
Study type
Interventional
Enrollment
450
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 33 studies in von Hippel-Lindau Disease with a site in United States — 8 open to participants now, 11 under way, 1 of them phase 3. von Hippel-Lindau Disease · United States.

Planned enrollment
3rd of 23
450 · median 15
Started
2026
the only one that year
Phase 3
Only one
of the 33
Registered
33rd of 33
by date
Lead sponsor
2 of 33
Merck Sharp & Dohme LLC

Among the 33 studies in von Hippel-Lindau Disease with a site in United States, this one is the 3rd largest by planned enrollment of the 23 interventional ones, is the only one that started in 2026, is the only one in phase 3, and was the 33rd registered.

By phase

33 studies; the count open now beside each. This study's row is marked.

Phase 211 · 2 open
Observational10 · 4 open
Phase 16 · 0 open
Phase 1/23 · 0 open
No phase2 · 1 open
Phase 3this study1 · 1 open

By the year they started

First in 1997; this study’s year is marked. 1 started in 2026.

Size and results

Median enrollment 15 across the 23 interventional studies, 300 across the 10 observational. Of the 22 that completed or were terminated, 9 (41%) have results posted.

Was this useful?
Watch this landscapeDownload CSVWith an account: a weekly mail of what changed among 33 studies in von Hippel-Lindau Disease with a site in United States, or all of them as a file.
02

Study summary

Researchers are looking for new ways to treat advanced solid tumors and von Hippel-Lindau (VHL)-related tumors:

  • Advanced means the cancer has spread to other parts of the body (metastatic) or cannot be removed with surgery
  • Solid tumors are cancers mostly in body organs and tissues, not in the blood or other body liquids
  • VHL-related tumors are tumors caused by VHL disease. VHL disease is passed down from parents to children and people with VHL disease have a higher chance of getting certain types of cancer

Researchers want to learn about the long-term effects of a trial medicine called belzutifan. Belzutifan, also called MK-6482, is designed to block a protein that helps tumors grow and survive. This is an extension trial, which means only people who were in certain other belzutifan trials (called parent trials) may be able to join. The goal of this trial is to learn how long people live after they start taking belzutifan.

03

Conditions studied

  • Von Hippel-Lindau Disease
  • Malignant Neoplasms
04

Who can participate

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

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

The main inclusion criteria include but are not limited to the following:

  • Participants with advanced solid tumors or von Hippel-Lindau-related neoplasms who are participating in belzutifan-containing studies and on active treatment in a belzutifan parent study.

Exclusion criteria

Exclusion Criteria:

The main exclusion criteria include but are not limited to the following:

  • Has an on-going serious adverse event in the parent study, unless no longer hospitalized and considered clinically stable.
  • Is currently on a dose interruption due to an Adverse Event (AE) in the parent study; once treatment has been resumed in the parent study, the participant is eligible to enroll.
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
450 participants (estimated)

Study arms

  • Experimental
    Cohort A: Belzutifan Monotherapy

    Participants on active treatment assigned to belzutifan monotherapy in a parent study are transitioned to this extension study. Participants will continue the same dose and frequency of intervention as they were receiving in the parent study at the time of the transition. Treatment will continue until progressive disease (PD), unacceptable toxicity, withdrawal of consent, death, investigator decision, or study termination.

    Drug: Belzutifan

  • Experimental
    Cohort B: Belzutifan Combination Therapy

    Participants on active treatment assigned to a belzutifan combination therapy in a parent study are transitioned to this extension study. Participants will continue the same dose and frequency of intervention as they were receiving in the parent study at the time of the transition. Treatment will continue until PD, unacceptable toxicity, withdrawal of consent, death, investigator decision, or study termination.

    Drug: Belzutifan · Drug: Nivolumab · Drug: Lenvatinib · Drug: Cabozantinib

  • Active comparator
    Cohort C: Non-Belzutifan Therapy

    Participants on active treatment assigned to a non-belzutifan therapy in a parent study are transitioned to this extension study. Participants will continue the same dose and frequency of intervention as they were receiving in the parent study at the time of the transition. Treatment will continue until PD, unacceptable toxicity, withdrawal of consent, death, investigator decision, or study termination.

    Drug: Lenvatinib · Drug: Cabozantinib

Interventions

  • Belzutifan is administered orally at 120 mg once daily (qd) OR 200 mg qd until progressive disease (PD), unacceptable toxicity, withdrawal of consent, death, investigator decision, or study termination.

    Also known as: MK-6482, PT2977, WELIREG

  • Nivolumab is administered intravenously at 480 mg until PD, unacceptable toxicity, withdrawal of consent, death, investigator decision, or study termination.

  • Lenvatinib is administered orally at 20 mg qd until PD, unacceptable toxicity, withdrawal of consent, death, investigator decision, or study termination.

  • Cabozantinib is administered orally at 60 mg qd until PD, unacceptable toxicity, withdrawal of consent, death, investigator decision, or study termination.

06

What researchers measure

Primary outcomes

  1. Cohort A and Cohort B: Overall Survival (OS)

    Overall survival is defined as the time from randomization or the first dose of any study intervention in the parent study to death due to any cause.

    Time frame: Up to approximately 7 years

Secondary outcomes

  1. Number of Participants Who Experience One or More Adverse Events (AE)

    An AE was defined as any unfavorable and unintended sign including an abnormal laboratory finding, symptom or disease associated with the use of a medical treatment or procedure, regardless of whether it was considered related to the medical treatment or procedure, that occurred during the course of the study.

    Time frame: Up to approximately 2 years

  2. Number of Participants Who Discontinued Study Intervention Due to an AE

    An AE was defined as any unfavorable and unintended sign including an abnormal laboratory finding, symptom or disease associated with the use of a medical treatment or procedure, regardless of whether it was considered related to the medical treatment or procedure, that occurred during the course of the study.

    Time frame: Up to approximately 2 years

07

Study locations

50 of 57 sites recruiting
  • Beth Israel Deaconess Medical Center ( Site 0107)
    Boston, Massachusetts 02215, United States
    Recruiting
    • Study Coordinator · Contact617-667-7000
  • Dana-Farber Cancer Institute ( Site 0105)
    Boston, Massachusetts 02215, United States
    Recruiting
    • Study Coordinator · Contact617-632-3466
  • Karmanos Cancer Center ( Site 0108)
    Detroit, Michigan 48201, United States
    Recruiting
    • Study Coordinator · Contact800-527-6266
  • Hospital of the University of Pennsylvania Perelman Center for Advanced Medicine ( Site 0100)
    Philadelphia, Pennsylvania 19104, United States
    Recruiting
    • Study Coordinator · Contact215-360-0737
  • UPMC Hillman Cancer Center ( Site 0101)
    Pittsburgh, Pennsylvania 15232, United States
    Recruiting
    • Study Coordinator · Contact412-647-2811
  • SCRI Oncology Partners ( Site 7000)
    Nashville, Tennessee 37203, United States
    Recruiting
    • Study Coordinator · Contact615-329-7274
  • START San Antonio ( Site 0104)
    San Antonio, Texas 78229, United States
    Recruiting
    • Study Coordinator · Contact210-593-5265
  • Fred Hutchinson Cancer Center ( Site 0106)
    Seattle, Washington 98109, United States
    Recruiting
    • Study Coordinator · Contact206-606-7341
  • St George Hospital-Oncology Clinical Research Unit ( Site 2701)
    Kogarah, New South Wales 2217, Australia
    Recruiting
    • Study Coordinator · Contact+6191133830
  • Westmead Hospital ( Site 2703)
    Sydney, New South Wales 2145, Australia
    Recruiting
    • Study Coordinator · Contact+61288908383
  • Frankston Hospital-Oncology and Haematology ( Site 2705)
    Frankston, Victoria 3199, Australia
    Recruiting
    • Study Coordinator · Contact+610397847175
  • One Clinical Research ( Site 2704)
    Nedlands, Western Australia 6009, Australia
    Recruiting
    • Study Coordinator · Contact+6186279 9466
  • UZ Leuven ( Site 0900)
    Leuven, Vlaams-Brabant 3000, Belgium
    Recruiting
    • Study Coordinator · Contact+32 (0)16 34 69 12
  • BP - A Beneficencia Portuguesa de São Paulo ( Site 0200)
    São Paulo, São Paulo 01323-001, Brazil
    Active, not recruiting

    Not enrolling at this site — choose another above.

  • Jewish General Hospital ( Site 0001)
    Montreal, Quebec H3T 1E2, Canada
    Active, not recruiting

    Not enrolling at this site — choose another above.

  • James Lind Centro de Investigacion del Cancer ( Site 0304)
    Temuco, Araucania 4800827, Chile
    Recruiting
    • Study Coordinator · Contact+56452316296
  • CIDO SpA ( Site 0305)
    Temuco, Araucania 4810148, Chile
    Recruiting
    • Study Coordinator · Contact+56452657374
  • Fundación Arturo López Pérez ( Site 0300)
    Santiago, Region M. de Santiago 7500921, Chile
    Recruiting
    • Study Coordinator · Contact+56224457254
  • Oncovida ( Site 0303)
    Santiago, Region M. de Santiago 7500994, Chile
    Recruiting
    • Study Coordinator · Contact+56225992900
  • Bradfordhill ( Site 0301)
    Santiago, Region M. de Santiago 8420383, Chile
    Recruiting
    • Study Coordinator · Contact+56229490970
  • ONCOCENTRO APYS ( Site 0302)
    Viña del Mar, Valparaiso 2520598, Chile
    Recruiting
    • Study Coordinator · Contact+56323320861
  • Fakultni nemocnice Olomouc-Onkologicka klinika ( Site 1000)
    Olomouc, 77900, Czechia
    Recruiting
    • Study Coordinator · Contact588441111
  • Herlev and Gentofte Hospital ( Site 1200)
    Herlev, Capital Region 2370, Denmark
    Recruiting
    • Study Coordinator · Contact+45 38688798
  • Tampereen yliopistollinen sairaala ( Site 1305)
    Tampere, Pirkanmaa 33520, Finland
    Recruiting
    • Study Coordinator · Contact+358331163082
  • Hôpitaux Universitaires de Strasbourg ( Site 1702)
    Strasbourg, Bas-Rhin 67200, France
    Recruiting
    • Study Coordinator · Contact+33368766767
  • Institut Claudius Regaud ( Site 1703)
    Toulouse, Haute-Garonne 31059, France
    Recruiting
    • Study Coordinator · Contact+33531155050
  • Gustave Roussy ( Site 1701)
    Villejuif, Val-de-Marne 94805, France
    Recruiting
    • Study Coordinator · Contact0033142114211
  • Országos Onkológiai Intézet-Urogenitális Tumorok és Klinikai Farmakológiai Osztály ( Site 1501)
    Budapest, 1122, Hungary
    Recruiting
    • Study Coordinator · Contact+3612248600 #3162
  • Rambam Health Care Campus ( Site 1600)
    Haifa, 3109601, Israel
    Recruiting
    • Study Coordinator · Contact+97247772688
  • Hadassah Medical Center ( Site 1604)
    Jerusalem, 9112001, Israel
    Recruiting
    • Study Coordinator · Contact+97226777333
  • Rabin Medical Center ( Site 1602)
    Petah Tikva, 4941492, Israel
    Recruiting
    • Study Coordinator · Contact+97239377377
  • Sheba Medical center ( Site 1601)
    Ramat Gan, 5265601, Israel
    Recruiting
    • Study Coordinator · Contact+972035303030
  • Sourasky Medical Center ( Site 1603)
    Tel Aviv, 64239, Israel
    Recruiting
    • Study Coordinator · Contact+ 972 3 6947284
  • Toranomon Hospital ( Site 3100)
    Minato, Tokyo 105-8470, Japan
    Recruiting
    • Study Coordinator · Contact+81-3-3588-1111
  • Kyushu University Hospital ( Site 3101)
    Fukuoka, 812-8582, Japan
    Recruiting
    • Study Coordinator · Contact+81-92-641-1151
  • Tokushima University Hospital ( Site 3102)
    Tokushima, 770-8503, Japan
    Recruiting
    • Study Coordinator · Contact+81-88-631-3111
  • Maastricht Universitair Medisch Centrum - MUMC ( Site 1900)
    Maastricht, Limburg 6229 HX, Netherlands
    Recruiting
    • Study Coordinator · Contact+31433876400
  • Nederlands Kanker Instituut Antoni van Leeuwenhoek (NKI AVL) ( Site 1901)
    Amsterdam, North Holland 1066 CX, Netherlands
    Recruiting
    • Study Coordinator · Contact+31205129111
  • Isala, locatie Zwolle ( Site 1902)
    Zwolle, Overijssel 8025 AB, Netherlands
    Recruiting
    • Study Coordinator · Contact+31886246040
  • Auckland City Hospital ( Site 3000)
    Auckland, 1023, New Zealand
    Recruiting
    • Study Coordinator · Contact093074949
  • Centrum Onkologii im. Prof. Franciszka Lukaszczyka ( Site 2000)
    Bydgoszcz, Kuyavian-Pomeranian Voivodeship 85-796, Poland
    Recruiting
    • Study Coordinator · Contact+48523743862
  • Narodowy Instytut Onkologii im. Marii Sklodowskiej-Curie ( Site 2002)
    Warsaw, Masovian Voivodeship 02-781, Poland
    Recruiting
    • Study Coordinator · Contact+48 22 546 23 31
  • N.N. Blokhin NMRCO ( Site 2101)
    Moscow, Moscow 115478, Russia
    Active, not recruiting

    Not enrolling at this site — choose another above.

  • Russian Scientific Center of Radiology and Surgical Technologies ( Site 2100)
    Saint Petersburg, Sankt-Peterburg 197758, Russia
    Active, not recruiting

    Not enrolling at this site — choose another above.

  • Samsung Medical Center ( Site 2902)
    Gangnam, Seoul 06351, South Korea
    Recruiting
    • Study Coordinator · Contact+82-2-3410-1767
  • Severance Hospital, Yonsei University Health System ( Site 2901)
    Seodaemun-gu, Seoul 03722, South Korea
    Recruiting
    • Study Coordinator · Contact+82-2-2228-8138
  • Asan Medical Center ( Site 2900)
    Seoul, 05505, South Korea
    Recruiting
    • Study Coordinator · Contact+82-2-3010-5977
  • Hospital Universitari Vall d'Hebron ( Site 2300)
    Barcelona, 08035, Spain
    Recruiting
    • Study Coordinator · Contact+34934894350
  • Hospital Universitario 12 de Octubre ( Site 2301)
    Madrid, 28041, Spain
    Recruiting
    • Study Coordinator · Contact+34 91 390 83 39
  • Taipei Veterans General Hospital ( Site 2800)
    Taipei, 11217, Taiwan
    Active, not recruiting

    Not enrolling at this site — choose another above.

  • ME І.І. Mechnykov Dnipro Regional Clinical Hospital ( Site 2601)
    Dnipropetrovsk, Dnipropetrovsk Oblast 49005, Ukraine
    Recruiting
    • Study Coordinator · Contact+380505896241
  • CNCE Precarpathian Clinical Oncologic Center ( Site 2600)
    Ivano-Frankivsk, Ivano-Frankivsk Oblast 76018, Ukraine
    Active, not recruiting

    Not enrolling at this site — choose another above.

  • The Beatson West of Scotland Cancer Centre ( Site 2505)
    Glasgow, Glasgow City G12 0YN, United Kingdom
    Recruiting
    • Study Coordinator · Contact+441413017064
  • St Bartholomew's Hospital ( Site 2500)
    London, London, City of EC1A 7BE, United Kingdom
    Recruiting
    • Study Coordinator · Contact+442072533411
  • ROYAL MARSDEN HOSPITAL (CHELSEA) ( Site 2502)
    London, London, City of SW3 6JJ, United Kingdom
    Recruiting
    • Study Coordinator · Contact+442087523829
  • Imperial College Healthcare NHS Trust, Charing Cross Hospital ( Site 2504)
    London, London, City of W6 8RF, United Kingdom
    Active, not recruiting

    Not enrolling at this site — choose another above.

  • The Christie NHS Foundation Trust ( Site 2501)
    Manchester, M20 4BX, United Kingdom
    Recruiting
    • Study Coordinator · Contact0161 918 7884
08

References and documents

Individual participant data

Plan to share: Yes — https://trialstransparency.msdclinicaltrials.com/pdf/ProcedureAccessClinicalTrialData.pdf

Data sharing details ↗ · externaldatasharing-msd.com

09

Timeline

3 registry updates since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Mar 2026 (actual). Primary completion is estimated for Apr 2034, 96 months after the start.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 5, 2026
First posted
Feb 12, 2026
StartActual
Mar 23, 2026
Primary completionEst.
Apr 22, 2034
CompletionEst.
Apr 22, 2034
Last update
Oct 21, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Sites
4 sites added, 1 site removed
Show 4 added (1 Chile, 1 Poland, 1 United States, 1 Australia)
  • Fundación Arturo López Pérez ( Site 0300) · Santiago, Chile
  • Narodowy Instytut Onkologii im. Marii Sklodowskiej-Curie ( Site 2002) · Warsaw, Poland
  • UPMC Hillman Cancer Center ( Site 0101) · Pittsburgh, United States
  • One Clinical Research ( Site 2704) · Nedlands, Australia
Show 1 removed
  • FALP ( Site 0300) · Santiago, Chile
across 3 updates, Oct 6, 2026 – Oct 21, 2026
Show all 3 updates
  1. Oct 21, 2026
    2 sites added
    Show 2 added (1 United States, 1 Australia)
    • UPMC Hillman Cancer Center ( Site 0101) · Pittsburgh, United States
    • One Clinical Research ( Site 2704) · Nedlands, Australia
  2. Oct 16, 2026
    1 site added
    Show site
    • Narodowy Instytut Onkologii im. Marii Sklodowskiej-Curie ( Site 2002) · Warsaw, Poland
  3. Oct 6, 2026
    1 site added, 1 site removed
    Show site
    • Fundación Arturo López Pérez ( Site 0300) · Santiago, Chile
    Show 1 removed
    • FALP ( Site 0300) · Santiago, Chile
    + 1 other change: verification date

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07405164
Responsible party
Sponsor
First posted
Feb 12, 2026
Start date
Mar 23, 2026
Primary completion
Apr 22, 2034 (estimated)
Completion
Apr 22, 2034 (estimated)
Last update
Oct 21, 2026

Study contacts

Toll Free Number
Contact
Trialsites@msd.com
1-888-577-8839
Medical Director
study director · Merck Sharp & Dohme LLC

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drugs tested here: Belzutifan · Cabozantinib

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