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Efficacy and Safety of Systemic Treatments of Bone Metastases From Kidney Cancer in Patients Treated With Targeted Therapies

Multicenter Randomized Phase III Study Evaluating the Efficacy and Safety of Systemic Treatments of Bone Metastases From Kidney Cancer in Patients Treated With Targeted Therapies

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03408652
Acronym
MOSCAR
Enrollment
1
Registered
2018-01-24
Start date
2019-03-15
Completion date
2020-06-22
Last updated
2021-10-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Metastatic Renal Cell Carcinoma

Keywords

Bone Metastases

Brief summary

Multicenter, randomized, open-label, 2-arm, parallel-group, phase III study whose goal is to assess the efficacy and safety profile of bone-targeted treatments (Arm A: denosumab or zoledronic acid) versus the control arm (Arm B: no specific treatment) in patients with bone metastases under targeted therapy for Metastatic Renal Cell Carcinoma.

Interventions

DRUGdenosumab

Single subcutaneous injection of denosumab 120 mg every 4 weeks One intravenous infusion of zoledronic acid 4 mg every 4 weeks, according to labelled use.

Sponsors

Centre Leon Berard
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age ≥ 18 years. * Histologically proven mRCC. * Administration of one of the systemic agents in use for the treatment of mRCC (no more than three prior systemic therapy regimens). Patients with at least 6 months of 1st line treatment and a bone event may be included. * More than 1 bone metastasis. * Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) ≤ 2. * Adequate renal function (serum creatinine ≤ 200 mmol/L or creatinine clearance ≥ 30 mL/min according to Cockroft formula or MDRD formula for patients older than 65 years). * Covered by a medical insurance. * Willingness and ability to comply with scheduled visits, treatment plans, laboratory tests, and other study procedures. * Signed informed consent. * Accepting to use effective contraception during study treatment and within 5 months after final dose of study therapy.

Exclusion criteria

* Prior bisphosphonate or denosumab treatment in the year before inclusion. * Imminent or ongoing nerve or spinal compression as per the investigator's judgement. * Ongoing first-line therapy, started for less than 6 months (patients with BM at time of metastases diagnosis will initially benefit from the angiogenesis targeted agents used and are not at higher risk). * Anticancer treatment under investigation. * Paraneoplastic hypercalcemia (corrected total calcium \> 2.7 mmol/L). * Grade 4 toxicity under previous targeted agents. * Liver failure (AST and/or ALT ≥ 5.0 x upper limit of normal (ULN) or total bilirubin beyond normal limits). * Severe hypocalcaemia \> 2.8 mmol/l. * Fructose intolerance. * Invasive dental procedure (i.e. tooth extraction, dental implants, oral surgery) within the 10 days prior to randomization or required dental procedures at the pre-inclusion dental examination. * Psychological, familial, sociological, geographical conditions that would limit compliance with study protocol requirements. * Pregnant or breastfeeding woman. Females of child-bearing potential must have a negative serum pregnancy test within 7 days prior inclusion. * Life expectancy ≤ 3 months. * Participation to another clinical trial that might interfere with the evaluation of the main criterion. * Known hypersensitivity to the active substance or to any of the excipients of bisphosphonate or denosumab.

Design outcomes

Primary

MeasureTime frameDescription
Time to first Skeletal Related EventUp to 54 months after the first inclusionDefined as the time from randomization to first SRE. Patients without event will be censored at the time of the last clinical evaluation.

Secondary

MeasureTime frameDescription
Number of participants with treatment-related adverse events as assessed by CTCAE v4.0Every 3 months until the 18th month for each patientIncidence of adverse events (AEs) assessed using the National Cancer Institute - Common Terminology Criteria for Adverse Event (NCI-CTCAE) v4 grading scale, specific registration of ONJ or other osteonecrosis and rate of skeletal event per patient during study duration
Evolution of pain severityEvery 3 months until the 18th month for each patientProportion of patients with a clinically meaningful change in pain severity evaluated using a numerical rating scale (NRS)
Evolution of painEvery 3 months until the 18th month for each patientProportion of patients that shifted from not taking a strong opioid at baseline
Patient's condition evaluationUp to 9 months for each patient (evaluated at baseline, months 3, 6, 9)Functional Assessment of cancer Therapy-General (FACT-G) questionnaire, made of 27 items measuring the respondents' health state, each of which is answered using a five-point scale from 0 (not at all) to 4 (very much). Questions are phrased so that higher numbers indicate a better health state. Subscale scores are added to obtain total score.
Number of specific event-free survivalsUp to 54 months after the first inclusionSpecific times from randomization to appearance of the first Skeletal Related Event.
Evaluation of the different practices for bone metastases treatmentsUp to 18 months for each patientFinancial evaluation of centers' practices (home or hospitalization)
Cost-utility analysisUp to 18 months for each patientAll the hospitalization costs will be collected during the timeframe: outpatient, inpatient, and home care
Cost-effectiveness analysesUp to 18 months for each patientAll the hospitalization costs will be collected during the timeframe: outpatient, inpatient, and home care
Budget impact analysisUp to 18 months for each patientQuantification of financial consequences of rolling out this kind of medical supportive care strategy throughout the health system.
Overall survivalUp to 54 months after the first inclusionMeasured from the date of randomization to the date of death from any cause

Countries

France

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026