Effects of jelly containing heat-killed lactic acid bacteria on immune function in elderly people

Effects of jelly containing heat-killed lactic acid bacteria on immune function in elderly people - Effects of heat-killed lactic acid bacteria on immune function

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000011476

Enrollment

Registered

2013-08-13

Start date

2013-08-13

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Influenza infection

Interventions

Jelly containing heat-killed lactic acid bacteria, one cup per day, for 6 weeks Placebo Jelly, one cup per day, for 6 weeks

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Elderly residents of a nursing home, who are scheduled to receive influenza vaccination.

Exclusion criteria

Exclusion criteria: 1) Residents with hepatic, renal, cardiovascular, respiratory and intestinal dysfunction. 2) Residents with allergy to soybean, peach and gelatin, which are contained in the tested foods. 3) Residents daily consuming supplements of lactic acid bacteria except those provided by meals. 4) Residents with inadequate oral intake of the tested foods. 5) Residents judged as inappropriate for the study by the physician in charge.

Design outcomes

Primary

Measure	Time frame
Antibody titer and seroconversion against influenza vaccine.	—

Secondary

Measure	Time frame
Incidence rate of influenza, fever frequency, NK cell activity, neutrophil phagocytic activity, neutrophil bactericidal activity.	—

Countries

Japan

Contacts

Public ContactMichio Maruyama

Tokyo Metropolitan Health and Medical Treatment Corporation Ohkubo Hospital Department of Surgery

mm.com@ohkubohospital.jp03-5273-7711

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026