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NCT04508725

Serial Ultrasound in Metastatic Renal Cell Carcinoma (mRCC)

Completed NA Results posted Last updated 25 July 2025
What this trial tests

NA trial testing Doppler Ultrasound in Kidney Cancer in 22 participants. Completed in 30 November 2023.

Timeline
5 December 2020
Primary endpoint
30 November 2023
30 November 2023

Quick facts

Lead sponsorStanford University
PhaseNA
StatusCompleted
Study typeINTERVENTIONAL
Allocationnon randomized
Designsingle group
Maskingnone
Primary purposediagnostic
Enrollment22
Start date5 December 2020
Primary completion30 November 2023
Estimated completion30 November 2023
Sites1 location across United States

Drugs / interventions tested

Conditions studied

Sponsor

Stanford University

Who can join

18 and older, any sex, with Kidney Cancer or Renal Cell Carcinoma. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Initial Objective Response- First Participation Primary · 12 weeks

Initial objective response was defined as having either Complete Response (CR) or Partial Response (PR) per RECIST v1.1 at first on-treatment response evaluation 8-16 weeks after initiating treatment.

Yes (CR or PR)
GroupValue95% CI
ARM 1: Tyrosine Kinase Inhibitor (TKI) Plus Immune Checkpoint Inhibitor (ICI)5
ARM 2: Non-ICI Therapy1
No (SD or PD)
GroupValue95% CI
ARM 1: Tyrosine Kinase Inhibitor (TKI) Plus Immune Checkpoint Inhibitor (ICI)7
ARM 2: Non-ICI Therapy4
Initial Objective Response- Second Participation Primary · 12 weeks

Initial objective response is defined as having either Complete Response (CR) or Partial Response (PR) per RECIST v1.1 at first on-treatment response evaluation 8-16 weeks after initiating treatment.

Yes (CR or PR)
GroupValue95% CI
ARM 3: Enrolled Consecutively in Both Arms0
No (SD or PD)
GroupValue95% CI
ARM 3: Enrolled Consecutively in Both Arms1
Initial Relative Change in Tumor Burden Compared to Baseline - First Participation Secondary · 8-16 weeks after the start of treatment

Tumor burden was assessed as the sum of all tumor diameters at baseline compared to the first on-treatment response evaluation (8-16 weeks after the start of treatment) using RECIST v1.1 criteria

GroupValue95% CI
ARM 1: Tyrosine Kinase Inhibitor (TKI) Plus Immune Checkpoint Inhibitor (ICI)-16.0± 70.3
ARM 2: Non-ICI Therapy43.7± 94.8
Initial Relative Change in Tumor Burden Compared to Baseline - Second Participation Secondary · 8-16 weeks after the start of treatment

Tumor burden was assessed as the sum of all tumor diameters at baseline compared to the first on-treatment response evaluation (8-16 weeks after the start of treatment) using RECIST v1.1 criteria

GroupValue95% CI
ARM 3: Enrolled Consecutively in Both Arms-20.7± 0
Initial Per-Lesion Response Compared To Baseline - First Participation Secondary · 12 weeks

The relative change in tumor diameter of a single lesion between treatment 'baseline' and the first on-treatment response evaluation 8-16 weeks after the start of treatment, using RECIST v1.1 for tumor diameter measurements. This was measured as percent change and reported as mean ± standard deviation.

GroupValue95% CI
ARM 1: Tyrosine Kinase Inhibitor (TKI) Plus Immune Checkpoint Inhibitor (ICI)-28.0± 23.0
ARM 2: Non-ICI Therapy-4.6± 19.0
Initial Per-Lesion Response Compared To Baseline - Second Participation Secondary · 12 weeks

The relative change in tumor diameter of a single lesion between treatment 'baseline' and the first on-treatment response evaluation 8-16 weeks after the start of treatment, using RECIST v1.1 for tumor diameter measurements. This was measured as percent change and reported as mean ± standard deviation.

GroupValue95% CI
ARM 3: Enrolled Consecutively in Both Arms-6.3± 18.7
12-month Progression Free Survival (PFS)- First Participation Secondary · 12 months

PFS was defined as not having experienced any progressive disease (PD) per RECIST v1.1 within the first 12 months after initiating treatment (day 1 will be treatment start date).

Yes (No PD and no death experienced)
GroupValue95% CI
ARM 1: Tyrosine Kinase Inhibitor (TKI) Plus Immune Checkpoint Inhibitor (ICI)7
ARM 2: Non-ICI Therapy3
No (PD or death experienced)
GroupValue95% CI
ARM 1: Tyrosine Kinase Inhibitor (TKI) Plus Immune Checkpoint Inhibitor (ICI)4
ARM 2: Non-ICI Therapy2
12-month Progression Free Survival (PFS)- Second Participation Secondary · 12 months

PFS is defined as not having experienced any progressive disease (PD) per RECIST v1.1 within the first 12 months after initiating treatment (day 1 will be treatment start date), as a number and proportion without dispersion.

Yes (No PD and no death experienced)
GroupValue95% CI
ARM 3: Enrolled Consecutively in Both Arms0
No (PD or death experienced)
GroupValue95% CI
ARM 3: Enrolled Consecutively in Both Arms1

Adverse events — posted to ClinicalTrials.gov

Time frame: First study ultrasound exam through 12 weeks after starting treatment.. Reporting threshold: 5%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

ARM 1: Tyrosine Kinase Inhibitor (TKI) Plus Immune Checkpoint Inhibitor (ICI)
Serious: 0/12 (0%)
Deaths: 1/12
ARM 2: Non-ICI Therapy
Serious: 0/5 (0%)
Deaths: 0/5
ARM 3: Enrolled Consecutively in Both Arms
Serious: 0/2 (0%)
Deaths: 0/2
Other adverse events (1 terms — click to expand)

ReactionSystemARM 1: Tyrosine Kinase Inh…ARM 2: Non-ICI TherapyARM 3: Enrolled Consecutiv…
Abdominal PainGastrointestinal disorders

Data from ClinicalTrials.gov NCT04508725 adverse events section.

Sponsor's own description

To assess whether changes in quantitative tumor perfusion parameters after 3 or 6 weeks of treatment, as measured by power Doppler ultrasound, can predict initial objective response, defined by current standard-of-care, to therapy at 12 weeks after start of treatment

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.

Verify or expand the search:

Other trials of Doppler Ultrasound

Trials testing the same drug.

Other recruiting trials for Kidney Cancer

Currently open trials in the same condition.

Other Stanford University trials

Trials by the same sponsor.

Verify against primary sources

Data sources for this page

Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT04508725.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing