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Clinical Study of Local and Systemic biological Impact of GLP1/GIP-Receptor Agonists in patients with Breast Cancer: The CLARA trial

Status
Not yet recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2026-525820-76-00
Enrollment
168
Registered
2026-08-31
Start date
Unknown
Completion date
Unknown
Last updated
2026-08-31

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

Conditions

Hormone Receptor positive postmenopausal breast cancer

Brief summary

The primary endpoint is the mean change in log-transformed KI67 expression values between baseline and time of surgery in the different arms.

Detailed description

Adherence to GLP1/GIP RA and letrozole treatment, The type, incidence, severity (as graded by the National Cancer Institute Common Terminology Criteria for Adverse Events [NCI CTCAE] v6.0), seriousness, time till onset and duration of Adverse Events (AEs)/SAEs and any laboratory abnormalities., Perioperative complications graded using the Clavien Dindo Classification (Dindo et al, 2004, Ann Surg) up till 3 weeks postoperative., To evaluate the presence of circulating tumor DNA (ctDNA) at baseline, during treatment and at surgery in plasma samples. To evaluate changes between baseline, during treatment and at surgery in plasma samples

Interventions

Sponsors

UZ Leuven
Lead SponsorOTHER

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
The primary endpoint is the mean change in log-transformed KI67 expression values between baseline and time of surgery in the different arms.

Secondary

MeasureTime frame
Adherence to GLP1/GIP RA and letrozole treatment, The type, incidence, severity (as graded by the National Cancer Institute Common Terminology Criteria for Adverse Events [NCI CTCAE] v6.0), seriousness, time till onset and duration of Adverse Events (AEs)/SAEs and any laboratory abnormalities., Perioperative complications graded using the Clavien Dindo Classification (Dindo et al, 2004, Ann Surg) up till 3 weeks postoperative., To evaluate the presence of circulating tumor DNA (ctDNA) at baseline, during treatment and at surgery in plasma samples. To evaluate changes between baseline, during treatment and at surgery in plasma samples

Outcome results

None listed

Source: EU CTIS · Data processed: Sep 1, 2026