Clinical Trial Details
— Status: Completed
Administrative data
NCT number |
NCT05138627 |
Other study ID # |
KA-20007 |
Secondary ID |
|
Status |
Completed |
Phase |
N/A
|
First received |
|
Last updated |
|
Start date |
July 21, 2020 |
Est. completion date |
May 17, 2021 |
Study information
Verified date |
November 2021 |
Source |
Hacettepe University |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Interventional
|
Clinical Trial Summary
The purpose of this randomized controlled, statistical blind study that has an intervention
control group was to determine the effect of oral cryotherapy on anticipatory, acute, and
late nausea and vomiting of breast cancer patients receiving adjuvant chemotherapy. The study
was carried out between July 2020-May 2021 in the Unit of the Medical Oncology Department of
University of Health Sciences Dr. Abdurrahman Yurtaslan Ankara Oncology Training and Research
Hospital. The study sample consisted of 54 breast cancer patients. 26 patients belonged to
the intervention group and 28 to the control group. They were stratified based on their ages
and body surface areas and were planned to receive chemotherapy for four cycles. The Oral
Cryotherapy Protocol; developed by the researcher was made by obtaining opinions of five
academic members and physics engineers and chemical engineers. Nausea and vomiting training
guide and education was given to all patients in the study to avoid discrimination. The
intervention group of the study applied oral cryotherapy with the researcher when they came
to the hospital for the treatment and at home. No procedure outside of the routine treatment
was performed on patients in the control group. Data in the study were collected through the
Patient Information Form, the Rhodes Index of Nausea Vomiting and Retching (RINVR), and the
EORTC QLQ-C30 Life Quality Index. The effect of oral cryotherapy was measured by the RINVR by
contacting the patients every day for the first week during four cycles. EORTC QLQ-C30 and
RINVR were conducted on patients when they came to the hospital throughout their cycles.
Description:
Nausea-vomiting (80%) is the leading symptom associated with chemotherapy. The
chemotherapeutic regimen's emetogenicity is effective in the emergence of
chemotherapy-induced nausea-vomiting (CINV). In CINV, centers such as the cerebral cortex and
the gastrointestinal tract stimulated the Chemoreceptor Trigger Zone (CTZ). Cytotoxic drugs
can easily reach the CTZ. Various emetogenic cause serotonin release from enterochromaffin
cells in the gastrointestinal tract. Serotonin stimulates CTZ in the central nervous system,
and emesis develops. Despite the antiemetic drugs given to prevent the side effects of
chemotherapy drugs, 60% of patients experience nausea and vomiting. Adriamycin
Cyclophosphamide (AC) chemotherapy agents often cause nausea and vomiting between 1-7th days
after the treatment. When CINV cannot be controlled effectively and adequately, anticipatory
nausea and vomiting develop, especially within 24 hours before chemotherapy treatment, and a
learned reflex mechanism occurs. It is stated that uncontrolled anticipatory nausea and
vomiting in adult patients triggers acute and late nausea and vomiting. It is indicated that
approximately 70% of the patients who received chemotherapy treatment between the first and
fifth days experienced vomiting at least once, and 80% of the patients experienced nausea at
least once.
The guideline for the prevention and management of nausea-vomiting published by the Oncology
Nursing Society (ONS) states that the use of non-pharmacological approaches together with
pharmacological methods may be appropriate. One of the nonpharmacological applications
recommended in the management of chemotherapy-related symptoms is oral cryotherapy.
Cryotherapy is the process of cooling the tissues by utilizing the effect of pieces of ice.
Cryotherapy causes local vasoconstriction when used in treatment with intravenously
administered chemotherapy agents. The local effect of ice application in preventing muscle
damage is that it causes vasoconstriction in blood and lymph vessels, reducing the
inflammatory response and activation of some proteins. The most important neuroreceptors in
the formation of the emetic response are serotonin, substance-P, dopamine, acetylcholine,
corticosteroid, and histamine. The most important neurotransmitters are dopamine, serotonin,
and substance-P. Substance-P stimulates cholinergic neurons, causing vasodilation, increased
secretion, and smooth muscle contraction. This way, it triggers vomiting by stimulating the
CTZ.