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Efficacy and Safety of the Prophylactic Use of Doxycycline +/- Vitamin K Cream

A Double Blind Placebo Controlled Randomized Phase II Study Evaluating the Efficacy and Safety of the Prophylactic Use of Doxycycline +/- Vitamin K Cream in First Line mCRC Patients Treated With Erbitux and FOLFIRI.

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01345526
Enrollment
124
Registered
2011-05-02
Start date
2011-04-30
Completion date
2016-12-31
Last updated
2021-04-30

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

Conditions

Metastatic Colorectal Cancer

Brief summary

The aim of this Phase 2, two-arm, randomized, double blind placebo controlled study is to evaluate the efficacy of combination therapy of doxycycline and Vitamin K1 compared to doxycycline plus placebo for the prevention of acne-like skin rash in mCRC patients receiving first line cetuximab treatment.

Detailed description

The aim of this Phase 2, two-arm, randomized, double blind placebo controlled study is to evaluate the efficacy of combination therapy of doxycycline and Vitamin K1 compared to doxycycline plus placebo for the prevention of acne-like skin rash in mCRC patients receiving first line cetuximab treatment.

Interventions

DEVICEReconval K1 Cream

Sponsors

Universitätsmedizin Mannheim
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Masking description

Randomized Phase II Trial assessing the prevention of acne like Skin rash

Intervention model description

Randomized Phase II trial

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Written informed consent must be given * Patient ≥ 18 years * Histologically proven and measurable metastatic adenocarcinoma of the colon or rectum (according to modified RECIST criteria v.1.1) * Patients eligible for Erbitux and FOLFIRI treatment K-Ras wild type tumour * Metastatic disease * Life expectancy of at least 12 weeks * WHO performance status of 0 or 1 * Effective contraception for both male and female patients if the risk of conception exists * Adequate organ function * Adequate bone marrow, hepatic and renal function (Hemoglobin \> 10.0 g/dL, platelet count \> 100 x 109/L, absolute neutrophil count \> 1.5 x 109/L; ALAT, ASAT \< 2.5 x ULN (upper limit of normal range) or \< 5x ULN in case of liver metastasis; Alkaline phosphatase \< 2.5 x ULN; Total bilirubin \< 1.5 x ULN; Creatinine clearance \> 50 mL/min (calculated according to Cockcroft and Gault formula)).

Exclusion criteria

* Prior treatment for metastatic disease (adjuvant therapy with 5-FU/oxaliplatin based regimens) allowed if stopped 6 months prior to registration on study * Prior treatment with EGFR inhibitor * Surgery (excluding diagnostic biopsy) or irradiation within 4 weeks prior to study entry * Administration of any investigational drug or agent/procedure, i.e. participation in another trial within 4 weeks before beginning treatment with study drugs * Concurrent chronic systemic immune therapy, chemotherapy, radiation therapy or hormone therapy not indicated in the study protocol * Any active dermatological condition \> grade 1 at baseline possibly interfering with or influencing the results or conduct of the present study * Brain metastasis (known or suspected) * Significant impairment of intestinal resorption (e.g. chronic diarrhea, inflammatory bowel disease) * Any other uncontrolled concomitant illness, including serious uncontrolled intercurrent infection * Severe or uncontrolled cardiovascular disease (congestive heart failure NYHA III or IV, unstable angina pectoris, history of myocardial infarction within the last twelve months, significant arrhythmias) * Known allergy or any other adverse reaction to any of the study drugs or to any related compound. * Any organ allograft requiring immunosuppressive therapy. * Pregnancy (absence to be confirmed by serum/urine beta human chorion gonadotrophin (HCG)) or breast-feeding. * Other previous malignancy within 5 years, with exception of a history of a previous basal cell carcinoma of the skin or pre-invasive carcinoma of the cervix surgically cured or adequately treated. * Known drug abuse / alcohol abuse * Legal incapacity or limited legal capacity * Any psychological, familial, sociological or geographical condition potentially hampering compliance with the study protocol and followup schedule; those conditions should be discussed with the patient before registration in the trial. * Medical or psychological condition which, in the opinion of the investigator, would not permit the patient to complete the study or meaningfully sign informed consent. * Known M. Meulengracht (Gilbert´s disease) or DPD-insufficiency * Known coagulation disorders * Ongoing or planned treatment with coumarin derivates

Design outcomes

Primary

MeasureTime frame
Occurrence of acne-like skin rash grade ≥ 2 (according to the CTCAE) version 4.02) during the 8 weeks of skin treatment.Week 8
PFS rate, toxicity, complianceWeek 8

Countries

Germany, Slovenia

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026