Combination drugs of hypoxanthine and human immunoglobulin

12186,323

17/811715

July 11, 2022

A combination drug contains hypoxanthine and human immunoglobulin (HIg). HIg has a therapeutic effect on radiation injuries, and the combination of hypoxanthine and HIg can further enhance this therapeutic effect. The combination drug can be administered to patients undergoing radiotherapy and to those who accidentally have excessive irradiation.

Institute of Blood Transfusion, Chinese Academy of Medical Sciences (Sichuan, CN); Institute of Radiation Medicine, Chinese Academy of Medical Sciences (Tianjin, CN); Shanghai RAAS Blood Products Co., Ltd. (Shanghai, CN)

Institute of Blood Transfusion, Chinese Academy of Medical Sciences (Sichuan, CN), Institute of Radiation Medicine, Chinese Academy of Medical Sciences (Tianjin, CN), Shanghai RAAS Blood Products Co., Ltd. (Shanghai, CN)

1. A combination drug for the treatment of radiation injuries for a subject in need thereof, comprising hypoxanthine and human immunoglobulin (HIg), wherein: said HIg is selected from intravenous immunoglobulin (IVIg), intramuscular immunoglobulin (IMIg), subcutaneous immunoglobulin (SCIg), and mixtures thereof; and the mass of hypoxanthine is 50 mg/kg calculated based on the subject's weight; and the mass ratio of hypoxanthine to HIg is from 1:1 to 1:11.

2. The combination drug according to claim 1 , wherein the combination drug restores the hematopoietic function of the body and/or improves immunity after radiation injuries.

3. The combination drug according to claim 1 , wherein the combination drug mitigates thymic atrophy, spleen atrophy, leukocytopenia, decreased lymphocyte ratio, increased neutrophil ratio and/or inflammation caused by radiation injuries.

4. The combination drug according to claim 1 , wherein the combination drug is for males.

5. The combination drug according to claim 1 , wherein the mass ratio of hypoxanthine to HIg is 1:6.

6. A method for alleviating radiation damage, comprising administering an effective amount of a composition to a subject in need thereof, wherein the composition comprises the combination drug according to claim 1 .

7. A method for treating tumors, comprising administering to a subject in need thereof an effective amount of the combination drug according to claim 1 and anti-tumor radiotherapy drugs.

8. The method according to claim 6 , wherein the combination drug restores the hematopoietic function after radiotherapy, retards thymic atrophy, spleen atrophy, leukocytopenia, decreased lymphocyte ratio, increased neutrophil ratio and/or inflammation caused by radiotherapy.

9. The method according to claim 6 , wherein the combination drug is for males.

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