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An exploratory study of PRecision dOsing of moLecular targeted agents based On therapeutic drug monitoriNG

An exploratory study of PRecision dOsing of moLecular targeted agents based On therapeutic drug monitoriNG - PROLONG study

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000036158
Enrollment
50
Registered
2019-03-11
Start date
2015-05-27
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

1) Colorectal cancer 2) Gastrointestinal stromal tumors 3) Hepatocellular carcinoma 4) Renal cell carcinoma 5) Soft tissue sarcoma

Interventions

1) PK profiles of regorafenib and its metabolites (M-2/M-5 and M-7/M-8) at week 1, 2, and 3 during the first cycle will be examined. In addition, the subsequent drug concentrations after dose adaptat

Sponsors

Department of Hospital Pharmacy and Pharmacology, Asahikawa Medical University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) All patients treated with regorafenib 2) All patients treated with pazopanib 3) All patients treated with axitinib 4) Patients who can give written informed consent

Exclusion criteria

Exclusion criteria: 1) Patients who are currently participating in or will be enrolled in clinical trials 2) Patients receiving molecular targeted therapy as an off-label use

Design outcomes

Primary

MeasureTime frame
To reveal the clinical benefit of therapeutic drug monitoring (TDM) of molecular targeted agents (regorafenib, pazopanib, and axitinib) in terms of prolonged duration of treatment by determining a tolerable maintenance dose in individual patients, compared with the empirical approach based only on clinical and laboratory findings.

Secondary

MeasureTime frame
1) To explore associations between drug exposure and clinical efficacy and safety. 2) To clarify the impact of genetic polymorphisms on the interindividual variability in plasma and urine drug concentrations.

Countries

Japan

Contacts

Public ContactMasahide Fukudo

Asahikawa Medical University Department of Hospital Pharmacy and Pharmacology

mfukudo@asahikawa-med.ac.jp0166-69-3482

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026