seem to improve(т.е. не подтвержденный какими-либо методами исследования:: the patient seemed to improve – у пациента отмечалось видимое улучшение.Min$draV)
health gain(A generic term for any measurable or objective improvement in the health of a population–e.g., reduction in cancer or coronary heart disease-related mortality–which is attributable to a health intervention. amatsyuk)
Clinical Benefit Rate(Disease Control Rate (DCR) and Clinical Benefit Rate (CBR) are defined as the percentage of patients with advanced or metastatic cancer who have achieved complete response, partial response and stable disease to a therapeutic intervention in clinical trials of anticancer agents. amatsyuk)