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Colorectal CancerMARACONNCT01736813

CCR5-blockade in Metastatic Colorectal Cancer

An observational study of Colorectal Cancer and Neoplasm Metastasis, run by National Center for Tumor Diseases, Heidelberg at 1 site in Germany.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The surface molecule CCR5 is found on tumor cells within liver metastases of colorectal cancer. Inhibition of this molecule leads to a reduction in growth signals for tumor cells and subsequent slowed or halted tumor growth. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Maraviroc
How many people
12 participants
Where
1 siteGermany
Study dates
Nov 2012to Sep 2014
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: large university hospital with local private practice referrers

Who may be able to join

  • written informed consent (must be available before enrollment in the trial)
  • age ≥ 18 years
  • male or female patient with a history of treated metastatic stage IV colorectal cancer with liver metastases of the primary colorectal cancer
  • histologically confirmed liver metastasis of colorectal cancer with histologically confirmed CCR5 (C-C chemokine receptor type 5) expression in the tumor cells
  • expected survival of at least three months
  • Karnofsky performance status > 70 %
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  • patients that have received current standard treatment options (progression or intolerance to oxaliplatin, irinotecan and 5-Fluorouracil with or without treatment combinations of cetuximab and/or bevacizumab or panitumumab)
  • no chemotherapy treatment within the last three weeks
  • within the last 2 weeks prior to study day 1 the following laboratory parameters, which should be within the ranges specified (or as deemed acceptable by trial investigator): absolute neutrophil count (ANC) ≥ 1000/mm3 (≥ 1.0 x 109/L), platelets ≥ 80.000/mm3 (≥ 80 x 109/L), creatinine Clearance limit as assessed by glomerular filtration rate > 60 mL/min/1.73m², ALT (alanine transaminase), AST (aspartate transaminase), and total bilirubin all ≤ 5.0 x ULN (upper limit normal)
  • able and willing to give valid written informed consent and to understand character and individual consequences of the clinical trial
  • if the patient is female, she must be of non-childbearing potential, or practice adequate contraception.

Who cannot join

  • Patients with severe kidney disorders (GFR of <30 mL/min/1.73m² and diagnosed kidney disease) or who are on hemodialysis. The patient requires concomitant chronic treatment with systemic corticosteroids or any other immunosuppressive agents. Topical or inhalational steroids are permitted.
  • Patients taking immunomodulatory medication (Type 1 interferons).
  • Use of any investigational or non-registered product (drug or vaccine) other than the study treatment
  • Patients with single metastatic lesions (intent to resect the metastasis)
  • Patients with metastatic colorectal cancer that have a drastic clinical progression (e.g. from Karnofsky performance 100% to 60%) within the last six weeks before screening cannot participate
  • The patient has a history of autoimmune disease.
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  • The patient has a family history of congenital or hereditary immunodeficiency.
  • The patient is known to be positive for Human Immunodeficiency Virus (HIV) or other chronic infections (HBV, HCV).or has another confirmed or suspected immunosuppressive or immunodeficient condition.
  • The patient has psychiatric or addictive disorders that may compromise his/her ability to give informed consent or to comply with the trial procedures.
  • The patient has concurrent chronic severe medical problems (heart failure, uncontrolled diabetes, bleeding disorder etc.), unrelated to the malignancy, that would significantly limit full compliance with the study or expose the patient to unacceptable risk.
  • The patient has previous or concomitant malignancies at other sites, except effectively treated carcinoma in situ of the cervix or effectively treated malignancy that has been in remission for over 5 years and is highly likely to have been cured.
  • For female patients: the patient is pregnant or lactating.
  • Women of childbearing potential: Refusal or inability to use effective means of contraception
  • History of hypersensitivity to the investigational medicinal product or to any drug with similar chemical structure or to any excipient present in the pharmaceutical form of the investigational medicinal product
  • Participation in other clinical trials or observation period of competing trials, respectively
  • No subject will be allowed to enroll in this trial more than once.

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • National Center for Tumor Diseases, Department of Medical Oncology

    Heidelberg, Baden-Wurttemberg, 69120

Other trials in Germany

About this study

Official title: Treatment of Advanced Colorectal Cancer Patients With Hepatic Liver Metastases Using the CCR5-Antagonist Maraviroc (Phase I Maracon Trial)

The surface molecule CCR5 is found on tumor cells within liver metastases of colorectal cancer. Inhibition of this molecule leads to a reduction in growth signals for tumor cells and subsequent slowed or halted tumor growth. The agent for the inhibition of CCR5 has already received FDA approval for treatment of HIV and has shown little side effects and toxicities even on long term treatment. Therefore CCR5-inhibition has the potential of providing non-toxic tumor growth inhibition.

Being tested
Maraviroc
Keywords
colorectal cancer, liver metastases, chemotherapy, chemokine, CCR5 inhibition
Medical subject headings
Colorectal Neoplasms, Neoplasm Metastasis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • MaravirocDrug

    Also called Celsentri

    Twelve patients with 300 mg/bid

Study groups in NCT01736813
Study groupRoleWhat they receive
CCR5-inhibitor at 300 mg/bidcolorectal cancer patients with liver metastases (twelve patients treated with 300 mg/bid)
Receives: Drug: Maraviroc

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. safety as occurence of adverse events ≥ Grade 3 according to CTCAE, Version 4.0 criteria, that are definitely, probably, or possible related to the administration of the investigational agent

    safety, tolerability and feasibility will be assessed after eight weeks of continuous intake of the CCR5-inhibitor. Safety measures include blood analyses (hematologic, liver function, renal function etc.) and the overall performance status of the patient. Especially infections and infection-related events are investigated.

    Measured: after eight weeks of treatment

Secondary outcomes (4)
  1. Progression Free Survival

    Patients will be evaluated for one year afterwards to assess progression free survival.

    Measured: one year after eight weeks of treatment

  2. Tumor response according to the Response Evaluation Criteria in Solid Tumors (RECIST)

    Tumor response will be evaluated after eight weeks of continuous treatment with the CCR5-inhibitor, using the RECIST criteria on MRI images (comparing pre- and post-treatment)

    Measured: after eight weeks of treatment

  3. Tissue level responses of growth inhibition via the CCR5 axis

    The evaluation of tissue alterations within the tumor microenvironment induced by CCR5-inhibition will be performed during the first four weeks of treatment, comparing the pre-treatment tissue situation with the post-treatment situation.

    Measured: during the first four weeks of treatment

  4. Overall survival

    Patients will be evaluated for one year afterwards to assess overall survival.

    Measured: one year after eight weeks of treatment

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Nov 2012 (estimated)
  2. Study startNov 2012
  3. Primary completionDec 2013
  4. Study completionSep 2014

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case only
Time perspective
Prospective
Enrolment
12 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01736813
Sponsor's protocol ID
MARACON-001
Other IDs
2012-000861-18
Acronym
MARACON
Status last verified
Jul 2014
First submitted
24 Oct 2012
Last updated
22 Mar 2017
Results posted
No
Data monitoring committee
No

Publications

  • Halama N, Zoernig I, Berthel A, Kahlert C, Klupp F, Suarez-Carmona M, Suetterlin T, Brand K, Krauss J, Lasitschka F, Lerchl T, Luckner-Minden C, Ulrich A, Koch M, Weitz J, Schneider M, Buechler MW, Zitvogel L, Herrmann T, Benner A, Kunz C, Luecke S, Springfeld C, Grabe N, Falk CS, Jaeger D. Tumoral Immune Cell Exploitation in Colorectal Cancer Metastases Can Be Targeted Effectively by Anti-CCR5 Therapy in Cancer Patients. Cancer Cell. 2016 Apr 11;29(4):587-601. doi: 10.1016/j.ccell.2016.03.005.

    PubMed 27070705

Questions about this trial

What is this clinical trial studying?

An observational study of Colorectal Cancer and Neoplasm Metastasis, run by National Center for Tumor Diseases, Heidelberg at 1 site in Germany.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 11 inclusion and 16 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 22 Mar 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Germany. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

safety as occurence of adverse events ≥ Grade 3 according to CTCAE, Version 4.0 criteria, that are definitely, probably, or possible related to the administration of the investigational agent (time frame: after eight weeks of treatment). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01736813, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Mar 2017.

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