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A Phase II Study to Assess the Safety, Tolerability, and Efficacy of MK-0822 (Cathepsin-K Inhibitor) in the Treatment of Women with Breast Cancer and Established Bone Metastases (MBD) - Women with Breast Cancer and Established Metastatic Bone Disease

A Phase II Study to Assess the Safety, Tolerability, and Efficacy of MK-0822 (Cathepsin-K Inhibitor) in the Treatment of Women with Breast Cancer and Established Bone Metastases (MBD) - Women with Breast Cancer and Established Metastatic Bone Disease

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2006-002669-38-DE
Enrollment
45
Registered
2006-09-20
Start date
2006-12-07
Completion date
Unknown
Last updated
2012-03-19

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

Conditions

Metastatic Bone Disease (MBD) MedDRA version: 8.1 Level: LLT Classification code 10027452 Term: Metastases to bone

Interventions

Product Name: MK-0822 () Chemical name: N1-(1-cyanocyclopropyl)-4-fluoro-N2-{(1S)-2,2,2-trifluoro-1-[4’-(methylsul Product Code: MK-0822 Pharmaceutical Form: Tablet Pharmaceutical form of the placebo:

Sponsors

Merck & Co Inc.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: • Women with breast cancer and MBD • Postmenopausal or using adequate contraception • Stable chemotherapy or hormone therapy regimen • Recovered from radiotherapy or surgery • Urinary NTx > 50 nmol BCE/mmol creatinine • Performance status =65 years) yes F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: • Current bisphosphonate use or bisphosphonate use within the prior 3 m months • Investigational drugs within the prioir 4 weeks • CNS metastases or meningeal involvement or primary CNS tumor • Ascites or pleural effusion with significant symptoms • Other primary cancer • Other significant, concurrent disease • Psychiatric disorders or substance abuse • Breast feeding or expected to conceive Patient has significant hypercalcemia (defined as serum calcium >2.7 mmol/L or >10.8 mg/dL). Patient is known to be HIV positive or has an AIDS-related illness or has a known history of active hepatitis B or C. Patient had a prior malignancy with the exceptions of cervical intraepithelial neoplasia; basal cell carcinoma of the skin; or has undergone potentially curative therapy with no evidence of recurrence for 5 years and is deemed at low risk for recurrence by the treating physician. The patient has a known clinical hypersensitivity to zoledronic acid, or other bisphosphonates. The patient plans to undergo invasive dental procedures, such as dental surgery or tooth extraction, during the 6 weeks of the study.

Design outcomes

Primary

MeasureTime frame
Main Objective: E.2.1 Main objective: To assess the safety, tolerability, and biochemical efficacy (changes in urinary NTx) of MK-0822 in women with breast cancer and MBD;Secondary Objective: E.2.2 Secondary objectives: To assess the efficacy of MK-0822 on additional biochemical parameters and its pharmakokinetic properties;Primary end point(s): • Urinary NTx • Safety and tolerability

Countries

Germany, Italy, Norway

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026