Gastrointestinal Tract Cancer, Peripheral Neuropathy
Conditions
Brief summary
This study will examine DNA from Gastrointestinal Tract of cancer patients treated with oxaliplatin to look for a variation (mutation) of the ABCG2 gene that may lead to drug-induced peripheral neuropathy in certain patients. The DNA will be extracted from patients' blood samples and are analyzed for the ABCG2 single nucleotide polymorphism (G34A - rs2231137 and A/A -rs3114018 genotypes) and correlated with peripheral neuropathy grades.
Detailed description
Pharmacogenetic analysis/genotyping : Genotyping is conducted via High Resolution Melting (HRM) TECHNIQUE, To confirm the genotyping results, the Polymerase chain reaction (PCR) product of the samples will be examine via direct sequencing using 3500 Genetic analyzer from ThermoFisher (applied biosystem) at two ABCG2 loci using the following PCR primers: 1-ABCG2 G34A - rs2231137 Forward : 5'-TGC AAT CTC ATT TAT CTG GAC TA-'3 Reverse : 5'-AAT GCC TTC AGG TCA TTG GA-'3 -Annealing temp :57 -Product size : 163 2- ABCG2 A/A - rs3114018 Forward : 5'- TGATGTTCCTTCAGCCACTG-'3 Reverse : 5'-TTGTGGAAACCTCACAAAAGTG-'3 \- Annealing temp : 59 - Product size : 124
Interventions
GENETICpolymorphism analysis
Sponsors
Ain Shams University
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No
Inclusion criteria
* Gastrointestinal Tract Cancer patients treated with Oxaliplatin-containing chemotherapy * Measurable disease * Age of 18 years to 80 years
Exclusion criteria
* Pregnant women * History of allergic reactions attributed to compounds of similar chemical or biologic composition to Oxaliplatin. * Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements. * Neurologic disease or patients with disease impairing the neurologic function affecting
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Correlation of single nucleotide polymorphisms of ABCG2 gene (G34A - rs2231137 and A/A -rs3114018 genotypes) with peripheral neuropathy grades, using the National Cancer Institute Common Toxicity Criteria (NCI-CTCAE) | After 6 cycles of chemotherapy (each cycle is15 days), for six months | Peripheral Neuropathy Toxicity will be assessed every cycle for six months using the National Cancer Institute Common Toxicity Criteria (NCI-CTCAE). Patients will be assigned to 4 groups according to the grades of neuropathy. |
Countries
Egypt
Outcome results
None listed