Actively Recruiting

Phase 3
Age: 70Years +
All Genders
ID06275958

DOSAGE Study: a Multicenter Randomized Phase III Trial of Dose-Reduced Chemotherapy for Advanced Colorectal Cancer in Older Patients

Led by Leiden University Medical Center · Updated on 2024-10-16

587

Participants Needed

36

Research Sites

26 weeks

Total Duration

On this page

Sponsors

L

Leiden University Medical Center

Lead Sponsor

D

Dutch Colorectal Cancer Group

Collaborating Sponsor

AI-Summary

What this Trial Is About

Researchers are evaluating chemotherapy dosing strategies in older patients aged 70 years and above who have metastatic colorectal cancer and are eligible for first-line palliative chemotherapy. This phase III randomized controlled trial aims to compare upfront dose-reduced chemotherapy with standard full-dose chemotherapy, focusing on progression-free survival (PFS). Patients are assessed using the Geriatric 8 (G8) questionnaire to determine their risk of chemotherapy toxicity, which guides treatment assignment. The study seeks to balance treatment effectiveness with minimizing toxicity, hospital admissions, and maintaining quality of life (QoL) and physical functioning. Participants classified as low risk for toxicity (G8 score 15 or higher) are randomized to receive either doublet chemotherapy (a fluoropyrimidine combined with oxaliplatin) at full dose or with a 25% dose reduction upfront. Those at high risk (G8 score 14 or lower or judged high risk by their oncologist) receive fluoropyrimidine monotherapy either at full dose or with a 25% dose reduction. The study also allows the addition of targeted treatments like bevacizumab or EGFR inhibitors. Dose adjustments are made for patients with moderate kidney impairment. Chemotherapy is given orally or intravenously on schedules varying between every two and three weeks, depending on the regimen. Participants will be closely monitored throughout treatment, with assessments including radiological or clinical evaluations for disease progression, quality of life and physical functioning questionnaires at 1, 3, 6, and 12 months, and tracking of chemotherapy toxicity, overall survival, treatment cycles, dose changes, hospital admissions, and cumulative drug dosage. Safety and cost-effectiveness will also be evaluated over an average study duration of eight months and up to one year for some outcomes. The study plans to include 587 patients and will continue until December 2028.

CONDITIONS

Brief Title

DOSAGE Study: Upfront Dose-Reduced Chemotherapy in Older Patients with Metastatic Colorectal Cancer

Who Can Participate

Age: 70Years +
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Patients aged 70 years or older with colorectal cancer and distant metastases without localized treatment options.
  • Candidates for first-line palliative chemotherapy as judged by their treating oncologist.
  • Ability to understand the Dutch language.
  • Adequate bone marrow and organ function: Absolute neutrophil count (ANC) > 1.5 x 10^9 mmol/L, Hemoglobin (Hb) > 6.0 mmol/L, Platelets >100 x 109 / L, Serum bilirubin ≤ 2 x upper limit of normal (ULN), serum transaminases ≤ 3 x ULN without liver metastases or ≤ 5 x ULN with liver metastases.
Not Eligible

You will not qualify if you...

  • Prior palliative chemotherapy.
  • Scheduled local treatment of metastases (e.g., liver surgery or stereotactic radiotherapy).
  • Candidates for triple chemotherapy.
  • Prior adjuvant chemotherapy within one year before study inclusion.
  • Complete or incomplete dihydropyrimidine dehydrogenase (DPD) deficiency.
  • Microsatellite instable (MSI)-high colorectal cancer.
  • HIV infection or active hepatitis.
  • Severe kidney failure (glomerular filtration rate ≤ 30 ml/min).
  • Severe cognitive deficits preventing informed consent.

AI-Screening

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

1 visit (in-person)

Treatment

Duration - Approximately 8 months

Participants receive dose-reduced or full-dose chemotherapy based on their risk of treatment toxicity assessed by the G8 questionnaire. Treatment includes either fluoropyrimidine monotherapy or doublet chemotherapy with or without targeted therapies.

Regular visits every 2 to 3 weeks during chemotherapy cycles

Follow-up

Duration - Up to 1 year after treatment initiation

Participants are monitored for progression-free survival, quality of life, physical functioning, toxicity, hospital admissions, and overall survival up to at least one year after randomization.

Visits at 1, 3, 6, and 12 months after randomization

Trial Site Locations

Total: 36 locations

1

Jeroen Bosch Ziekenhuis

's-Hertogenbosch, Netherlands

Not Yet Recruiting

2

Noordwest Ziekenhuisgroep

Alkmaar, Netherlands

Not Yet Recruiting

3

Ziekenhuis Amstelland

Amstelveen, Netherlands

Not Yet Recruiting

4

Amsterdam UMC

Amsterdam, Netherlands

Not Yet Recruiting

5

Rijnstate

Arnhem, Netherlands

Not Yet Recruiting

6

Wilhelmina Ziekenhuis

Assen, Netherlands

Not Yet Recruiting

7

Rode Kruis Ziekenhuis

Beverwijk, Netherlands

Not Yet Recruiting

8

Slingeland Ziekenhuis

Doetinchem, Netherlands

Not Yet Recruiting

9

Ziekenhuis Gelderse Vallei

Ede, Netherlands

Not Yet Recruiting

10

Catharina Ziekenhuis

Eindhoven, Netherlands

Actively Recruiting

11

Treant

Emmen, Netherlands

Not Yet Recruiting

12

Admiraal de Ruyter Ziekenhuis

Goes, Netherlands

Not Yet Recruiting

13

Beatrixziekenhuis

Gorinchem, Netherlands

Not Yet Recruiting

14

Groene Hart Ziekenhuis

Gouda, Netherlands

Actively Recruiting

15

Saxenburgh

Hardenberg, Netherlands

Not Yet Recruiting

16

St. Jansdal Ziekenhuis

Harderwijk, Netherlands

Not Yet Recruiting

17

Elkerliek Ziekenhuis

Helmond, Netherlands

Actively Recruiting

18

Tergooi MC

Hilversum, Netherlands

Actively Recruiting

19

Medisch Centrum Leeuwarden

Leeuwarden, Netherlands

Not Yet Recruiting

20

Leiden University Medical Center

Leiden, Netherlands

Actively Recruiting

21

Alrijne Ziekenhuis

Leiderdorp, Netherlands

Not Yet Recruiting

22

Canisius Wilhelmina Ziekenhuis

Nijmegen, Netherlands

Not Yet Recruiting

23

Laurentius Ziekenhuis

Roermond, Netherlands

Not Yet Recruiting

24

Bravis ziekenhuis

Roosendaal, Netherlands

Actively Recruiting

25

Ikazia Ziekenhuis

Rotterdam, Netherlands

Actively Recruiting

26

Maasstad Ziekenhuis

Rotterdam, Netherlands

Not Yet Recruiting

27

Ommelander Ziekenhuis

Scheemda, Netherlands

Not Yet Recruiting

28

ZorgSaam Zorggroep Zeeuws-Vlaanderen

Terneuzen, Netherlands

Actively Recruiting

29

Haaglanden Medisch Centrum

The Hague, Netherlands

Not Yet Recruiting

30

Hagaziekenhuis

The Hague, Netherlands

Actively Recruiting

31

Bernhoven

Uden, Netherlands

Not Yet Recruiting

32

Diakonessenhuis

Utrecht, Netherlands

Not Yet Recruiting

33

St Antonius

Utrecht, Netherlands

Not Yet Recruiting

34

VieCuri Medisch Centrum

Venlo, Netherlands

Not Yet Recruiting

35

Streekziekenhuis Koninging Beatrix

Winterswijk, Netherlands

Actively Recruiting

36

Zaans Medisch Centrum

Zaandam, Netherlands

Not Yet Recruiting

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Research Team

J

Joosje Baltussen

D

Data Management: Clinical Research Center LUMC

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

TREATMENT

Number of Arms

4

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Published Research Related To This Trial

DOSAGE study: protocol for a phase III non-inferiority randomised trial investigating dose-reduced chemotherapy for advanced colorectal cancer in older patients.

Joosje C Baltussen, Frederiek van den Bos, Marije Slingerland...

https://pubmed.ncbi.nlm.nih.gov/39142680