Registry Platform Urologic Cancer (CARAT)

September 19, 2025 updated by: iOMEDICO AG

Clinical Research Platform On Urologic Cancer Treatment And Outcome (Registry Platform Urologic Cancer; CARAT)

The purpose of the project is to set up a national, prospective, longitudinal, multicenter cohort study with associated satellites, a tumor registry platform, to document uniform data on characteristics, molecular diagnostics, treatment and course of disease, to collect patient-reported outcomes and to establish a decentralized biobank for patients with advanced renal cell carcinoma or urothelial cancer in Germany.

Study Overview

Status

Recruiting

Detailed Description

CARAT is a national, observational, prospective, longitudinal, multicenter cohort study (tumor registry platform) with the purpose to record information on the antineoplastic treatment of renal cell carcinoma and urothelial cancer in Germany. The registry will follow patients with advanced renal carcinoma for up to three years, and patients with advanced urothelial cancer for up to two years. It will identify common therapeutic sequences and changes in the treatment of the disease. At inclusion, data in patient characteristics, comorbidities, tumor characteristics and previous treatments are collected. During the course of observation data on all systemic treatments, radiotherapies, surgeries, and outcome are documented. Moreover, data on perioperative therapies in patients with high-risk muscle-invasive urothelial carcinoma and radical surgery will be collected.

Health-related quality of life (HRQoL) in patients with advanced renal cell carcinoma or advanced urothelial cancel will be evaluated for up to two years.

Study Type

Observational

Enrollment (Estimated)

1930

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

      • Multiple Locations, Germany
        • Recruiting
        • Multiple sites, Germany
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Adult patients with locally advanced and inoperable, or metastatic Renal Cell Carcinoma (aRCC); locally advanced and inoperable, or metastatic Urothelial Cancer (including Bladder Cancer) (aUBC); or High-risk Muscle-Invasive Urothelial Carcinoma (High-risk MIUC)

Description

Inclusion Criteria:

Cohorts aRCC and aUBC (prospective)

  • Female and male patients with aRCC or aUBC (locally advanced, inoperable or metastatic)
  • Patients at start of their first-line systemic treatment for aRCC or aUBC
  • Written informed consent

    • Patients participating in the PRO module: signing of in-formed consent form and completion of baseline questionnaire before start of initial systemic treatment
    • Patients not participating in the PRO module: within twelve weeks after start of systemic first-line for aRCC or aUBC
  • Age ≥ 18 years

Cohort High-risk MIUC (prospective and retrospective)

  • Histologically proven muscle-invasive urothelial carcinoma (MIUC) of the lower or upper urinary tract (ICD-10 C65, C66, C67.x, C68.x). Mixed histologies are allowed (main compo-nent must be urothelial carcinoma, with minor variants accept-ed).
  • Radical surgery (e.g., radical cystectomy, nephroureterecto-my) between October 1, 2021 and October 31, 2024.
  • High-risk of recurrence, defined as follows: Post-operative, pathological tumor status

    • ypT2-ypT4 and/or ypN+ and without clinically detectable metastases (M0) at cystectomy for patients with prior neo-adjuvant chemotherapy or
    • pT3-pT4 and/or pN+ and without clinically detectable me-tastases (M0) at cystectomy for patients without prior neo-adjuvant chemotherapy.
  • Age ≥ 18 years at the time of surgery.
  • Written informed consent (only if patient is alive at time of data entry; not applicable for inclusion of deceased patients' data)

Exclusion Criteria:

Cohorts aRCC and aUBC (prospective)

  • Patients with prior systemic therapy for aRCC or aUBC
  • No systemic treatment for aRCC or aUBC

Cohort High-risk MIUC (prospective and retrospective)

  • Partial cystectomy or partial nephrectomy of the primary tumor as definitive therapy
  • Metastatic disease (M1) at the time of surgery

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
aRCC
Patients with advanced renal cell carcinoma
Physician's choice according to patient's needs.
aUBC
Patients with advanced urothelial carcinoma (locally advanced and inoperable, or metastatic)
Physician's choice according to patient's needs.
High-risk MIUC
Patients with muscle-invasive urothelial carcinoma classified as high-risk after radical surgery (ypT2-ypT4 and/or ypN+,M0 for patients with prior neoadjuvant chemotherapy; pT3-pT4 and/or pN+, M0 for patients without prior neoadjuvant chemotherapy)
Physician's choice according to patient's needs.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Course of treatment (treatment reality)
Time Frame: 3 years per patient
Documentation of anamnestic data and therapy sequences
3 years per patient

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Best Response
Time Frame: 3 years per patient
Documentation of response rates per line of treatment.
3 years per patient
Progression-free survival
Time Frame: 3 years per patient
Documentation of progression-free survival per line of treatment.
3 years per patient
Overall survival
Time Frame: 3 years per patient
Documentation of overall survival time.
3 years per patient
Health-related quality of life (Patient-reported outcome)
Time Frame: 2 years per patient
Cohort aRCC: National Comprehensive Cancer Network/ Functional Assessment of Cancer Therapy (FACT)-Kidney Symptom Index 19 (NCCN-FACT FKSI-19) Cohort aUBC: NCCN/FACT Bladder Symptom Index (NCCN-FACT FBlSI-18, Version 2)
2 years per patient
Treatment symptom related quality of life
Time Frame: 2 years per patient
Patient-Reported Outcomes version of the Common Terminology Criteria for Adverse Events (PRO-CTCAE™) - Items/Scores cohort aRCC: 3/7/15/22/24/27/28/50/51; Items/Scores cohort aUBC: 3/7/15/22/24/27/28/39/45/50/51
2 years per patient

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Investigators

  • Study Chair: Michael Staehler, Prof. Dr., Ludwig Maximilian University of Munich, Dept. of Urology - University Hospital, Munich, Germany
  • Study Chair: Peter Goebell, Prof. Dr., University Clinic Erlangen, Department of Urology Comprehensive Cancer Center Erlangen EMN, Erlangen, Germany
  • Study Chair: Lothar Müller, Dr., Onkologie UnterEms, Leer-Emden-Papenburg, Leer, Germany
  • Study Chair: Viktor Grünwald, Prof. Dr., University Hospital Essen West German Cancer Center Essen, Clinic for Medical Oncology and Clinic for Urology, Essen, Germany
  • Study Chair: Carsten Grüllich, Prof. Dr., Sana Clinic Hof, Dept. of Hematology and Oncology, Hof, Germany
  • Study Chair: Christian Gratzke, Prof. Dr., University Hospital Freiburg, Dept. of Urology, Freiburg, Germany

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

December 7, 2017

Primary Completion (Estimated)

September 1, 2028

Study Completion (Estimated)

September 1, 2028

Study Registration Dates

First Submitted

December 12, 2017

First Submitted That Met QC Criteria

December 12, 2017

First Posted (Actual)

December 15, 2017

Study Record Updates

Last Update Posted (Estimated)

September 22, 2025

Last Update Submitted That Met QC Criteria

September 19, 2025

Last Verified

September 1, 2025

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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