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Method for prediction of clinical course in disseminated skin melanoma patients

IPC classes for russian patent Method for prediction of clinical course in disseminated skin melanoma patients (RU 2399057):
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FIELD: medicine.

SUBSTANCE: method is implemented by blood analysis for total and free triiodothyronine after the termination of integrated treatment to derive the total to free triiodothyronine ratio, and it is within the range 0.26-0.31, steady state is predicted to be kept in the patients; the ratio within the range 0.19-0.22 ensures to predict the disease generalisation. Technical and economic efficiency of the invention consists in the fact that the derived prognosis factor is an informative laboratory covariant of the favourable or unfavourable development of the pathology.

EFFECT: clinical application of the method allows for well-timed administration of the appropriate treatment in the patient with high-risk early process generalisation.

1 tbl, 2 ex

 

The invention relates to medicine, namely to biochemical research in Oncology, and can be used to determine further development of the disease, prognostic factors of treatment after the completion of antitumor activities.

Treatment of patients with disseminated melanoma is one of the most difficult problems of modern Oncology and often not possible to achieve a stable positive result. This makes the actual search is available and sufficiently informative laboratory criteria, which, along with clinical prognostic factors, would give an idea of the nature of the further development of the disease in patients after complex antitumor activities.

In the development of any pathological process, an important role belongs to the individual characteristics of the organism, caused, in particular, systems for maintaining homeostasis. In relation to malignant growth even against the backdrop of similar morphological and phenotypic properties of the tumor they can contribute in achieving positive treatment outcome, and maintaining the resistance of the organism at the post stage. Thyroid hormone triiodothyronine (T3) is a major hormone regulator of metabolism. Controlling and adapting active is here are the main enzymes of all kinds of metabolic processes to changing endogenous and exogenous conditions, it is involved in the normal physiological state of homeostasis (BTW, Chernysheva Hormones of animals. Introduction to physiological endocrinology. SPb., 1995).

In this regard, the content of T3and its dynamics in patients under the influence of the malignant process and/or anti-tumor effects can be considered as a potentially significant factor in the development of the body's response to treatment. This aspect needs to be emphasized that the circulating blood T3is in two forms, free and bound protein-perenosice, mainly with tyroneshum globulin. Linking entering the bloodstream T3protein performs the function on the one hand, protect the body against high concentrations of active compounds, on the other serves as a depot hormone. Free hormone due to an ability to interact with the tissues of the target determines the development of all characteristic for T3physiological effects. Thus, in terms of regulatory impacts is important is not only the total content of T3in the blood, but the ratio of total and free forms of the hormone.

Known "Method of predicting tumor recurrence in patients with melanoma (Patent No. 2275637 from 27.04.2006,, bull. No. 12). The method developed for the sick women of reproductive status and the basis of the Academy of Sciences for the determination of the daily excretion of urine sex hormones estrone, estradiol and estriol, and calculate the magnitude of the ratio of estriol excretion to total excretion of estradiol and estrone. Determination of the excretion of estrogen and the ratio in the elimination of separate fractions of hormones authors suggested that after the treatment course and phases of the audit observations. In case of increasing the value of the specified ratios predict relapse in 11-12 months after treatment. The disadvantage of this method is its development, and therefore applicable for patients with melanoma of the skin of women of reproductive age, but do not use the specified factor for prognosis in patients of the opposite sex and women of menopausal status.

Known "Method of predicting the course of cancer", selected as a prototype (patent No. 2018835 from 11.12.90, bull. No. 16, from 30.08.94). The authors of the method serves to determine in lymphocytes and neutrophils of blood within 4-45 days the content of histamine and calculate the ratio of the first measure to the last. When the value of this relationship over 0.9 predict complication of the disease in the form of development of recurrence and metastases. The disadvantage of this method is the need for multiple follow-up examinations, whereas the baseline does not provide a perspective on Enki individual character development of the disease.

The aim of the invention is the identification of prognostic factors for the development of the disease after a comprehensive cancer treatment of patients with disseminated melanoma.

This objective is achieved in that after the completion of the comprehensive treatment of patients determine the blood levels of total and free triiodothyronine, find the ratio of total triiodothyronine free and when its value within the boundaries of 0.26-0.31 in predicting preservation in patients with stable condition during 29-48 months, and when the value in the borders for 0,19 0,22 predict the generalization of disease and death during the 10-22 months.

The invention "Method of predicting the course of disease in patients with disseminated melanoma of the skin" is new, because it is unknown the level of medicine in the field of biochemical research in Oncology to determine the further development of the disease, prognostic factors after comprehensive cancer treatment of patients with disseminated melanoma.

The novelty of the invention lies in the fact that these biochemical studies indicate a correlation between the ratio of the concentrations of total and free T3in the blood of treated patients and the nature of the disease they have. The dependence allows AEC to consider this test as informative laboratory predictor of favorable or unfavorable development of pathology.

The invention "Method of predicting the course of disease in patients with disseminated melanoma of the skin" is industrially applicable as it can be used in health care, hospitals with cancer, oncologic dispensaries, cancer research institutes.

"A method of predicting the course of disease in patients with disseminated melanoma of the skin" is as follows:

In patients with disseminated melanoma of the skin after the complex treatment including automile and autohemotherapy, radiation therapy, determine the blood levels of total (bound+free) and free triiodothyronine and find the ratio of T3shared/T3free. Later in the process control inspection of treated patients establish or absence of disease, or its generalization, ending in death. When mapping process status in patients on follow-up, with the magnitude of the coefficient of T3shared/T3free after they complete a comprehensive treatment found that in patients in whom it was within the boundaries of 0.26 to 0.3, longer stable condition, patients living within 29-48 months; patients with value ratios are the NTA within the boundaries for 0,19 0,22 there is a generalization of the disease with fatal outcome in terms ranging from 10 to 22 months.

The study included 7 patients (5 women, 2 men) with disseminated melanoma. Patients received the combined treatment, including automile, autohemotherapy, radiation therapy and surgery. After treatment in the patients ' blood radioimmunoassay method using a standard test kit company Immunotech (Czech Republic) determined the content of total and free T3expected ratio between total and free forms of the hormone. After discharge from the hospital for sick were carried out follow-up. It has allowed to establish that 4 of the observed patients in the period from 10 to 22 months has been the generalization of malignant process, which ended in death. In 3 patients remains stable condition with no signs of progress of the disease within 29-48 months.

Thus, the data presented indicate the links between the features of the post of the disease in patients with disseminated melanoma of the skin and the magnitude of the ratio T3shared/T3free at the stage of completion of treatment. In patients with a shorter post-period steady state it was in borders from 0.19 to 0.22, whereas patients with no signs of the disease factor value of the stake is Alice from 0.26 to 0.31.

Table
Peculiarities of the course of disease in patients with disseminated melanoma of the skin with different values of thyroid factor
Patients with duration of steady state from 10 to 22 months Patients with persistent stable condition during 29-48 months
The coefficient of T3shared/T3free The coefficient of T3shared/T3free
0,22 (10 months). 0,31 (29 months).
0,19 (22 months). 0,26 (38 months).
0,20 (19 months). 0,31 (48 months).
0,19 (13 month)

The dependence allows us to consider this test as informative laboratory predictor of favorable or unfavorable developments considered pathology. Its clinical use will promote the timely identification of patients with high-risk early generalization process that will allow you to apply adequate therapeutic measures in this category is the patients.

Examples of clinical perform a method of predicting the course of disease in patients with disseminated melanoma of the skin":

Clinical example 1

The patient-VA, born in 1970, IB. No. 15554/t, came in the YEAR of the city of Shakhty in June 2004, complaining of the presence of tumor in the lumbar region to the left, which appeared from moles 1 year ago.

Completed needle biopsy Central Asian. No. 46277-81 amelanotic melanoma. The patient received special treatment at the place of residence. In June 2005 the patient was hospitalized in the Department of radiology, RNII with clinical diagnosis: a generalization of melanoma lumbar region to the left, metastases in the axillary and supraclavicular lymph nodes on the left, RT3N0MB St. II And Ref. Local status: postoperative scar in the lumbar region - without features, in the supraclavicular region to the left is palpated increased to 4 cm lymph node, motionless dense. 24-28.06.2005 was held polychemotherapy according to the scheme: Arenosa - 1000 mg intravenous drip in the 1st and 2nd days on autologous blood; Vincristine 2 mg intravenously at day 1.

28.06.2008, 4-day course of chemotherapy performed trypanophobia the right iliac bone. In separate vials containing 75 ml of bone marrow suspension, after incubation at 37°C for 30 minutes intravenously introduced 100 mg of cisplatin on automatozoni on the background wipe the hydration and forced diuresis. With 29.06.2005, the rate of local remote gamma-therapy (DHT) on the area of the supraclavicular lymph node on the left KIND=3 Gr and SOD=65 sogr taking into account the remaining doses. The clinical effect is regarded as a regression of more than 50%. Treatment the patient endured without hematological and General toxic reactions. For inspection and examination in October 2005, signs of recurrence and metastasis was not detected. 31.10-03.11.2005) underwent a course of chemotherapy No. 2 on autologous blood under the scheme: Arenosa - 1000 mg intravenous drip in the 1st and 2nd days on autologous blood; Vincristine 2 mg intravenous drip in 1 day. Cisplatin 100 mg 4-day intravenous drip on the background of overhydration and forced diuresis. 10.12.2005, performed a blood test to determine the content of total and free TK. The ratio TK shared/TK, equal, free, 0,26. In December 2005, February and March 2006 courses of adjuvant chemotherapy No. 3-5, according to the above scheme. During follow-up until November 2008, the patient's clinical group 3, signs of recurrence and metastasis was not detected.

Thus, the patient with the ratio TK General to TK free, equal 0,26, at the end of treatment for 38 months remains stable condition.

Clinical example 2

Patient L., born in 1938, IB. No. 2291 G/t, was subjected to combined treatment in the city of the PMC is the logical center (YEAR) Rostov-on-don in 1991 about melanoma skin of the inner surface of the left tibia (surgery+radiation). GA. No. 18157/91 - melanoma, on the second level of invasion according to Clark. In November 2004, the patient asked in RNII with complaints about the presence of tumor on the inner surface of the left thigh with a diameter up to 6 cm was performed needle biopsy of the Central Asian education. No. 29143-144 - detected cells of non-epithelial malignancy of nature, likely melanoma.

Clinical diagnosis: melanoma of the skin of the inner surface of the left tibia, the state after the combined treatment in 1991, pTiN0M0, St I, metastases in soft tissue of the left thigh.

08.12.2004, after performing tremenously right Ilium started 1st course automalaxoare. In separate vials containing 75 ml of bone marrow suspension, after incubation at 37°C for 30 minutes intravenously introduced 1000 mg of dacarbazine, methotrexate 25 mg and vincristine 1 mg entered in physiological solution. Methotrexate 25 mg and vincristine 1 mg was administered in 8-day physiological solution. With 16.12.2004, learning gemmoterapii (DHT) on postoperative scar single focal dose (ROD) 3 Gy up to a total focal dose (SOD) 40 sogr. In January 2005, at the control examination education in the soft tissues of the left hip was reduced to 2×3 cm in diameter, "divided" is but a few small knots. With 20.01.2005 was begun on a course of automalaxoare No. 2 according to the same scheme.

At the control examination in February 2005 education in the field of postoperative scar is not specified, the peripheral lymph nodes are not enlarged. In February and March 2005, made 2 standard course of adjuvant chemotherapy every three weeks using dacarbazine, methotrexate and vincristine. 31.03.2005, performed a blood test to determine the content of total and free TK. The ratio TK shared/TK, equal, free, 0,19.

At the control examination in March 2005, signs of lesion of lymph nodes are not identified but the patient was worried about feeling bad. According to the comprehensive examination (ultrasound, FLO chest) signs of lesion of internal organs are not reliably detected. The patient died in may 2005

Thus, a low ratio TK General to TK free the patient at the post stage was combined with the progression of the disease.

Technical and economic efficiency "method of predicting the course of disease in patients with disseminated melanoma of the skin" is that the identified prognostic factors are informative laboratory predictor of favorable or unfavorable development of pathology. Clinical application of the method will allow Sovrem the NGOs to assign the appropriate type of treatment for patients with increased risk of early generalization process.

A method for predicting the course of disease in patients with disseminated melanoma of the skin, including biochemical, characterized in that after completion of the comprehensive treatment of patients determine the blood levels of total and free triiodothyronine, find the ratio of total triiodothyronine free and when its value within the boundaries of 0.26-0.31 in predicting preservation in patients with stable state, and when the value in the borders for 0,19 0,22 predict the generalization of the disease.

 

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