Photodynamic diagnosis (PDD) of Peritoneal disseminations of gastric cancer using intraoperative fluorescence laparoscopy with 5-ALA administration.

Photodynamic diagnosis (PDD) of Peritoneal disseminations of gastric cancer using intraoperative fluorescence laparoscopy with 5-ALA administration. - Photodynamic diagnosis of Peritoneal disseminations of gastric cancer with 5-ALA.

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000026788

Enrollment

Registered

2017-04-01

Start date

2016-09-01

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

gastric cancer

Interventions

5-aminolevulinic acid(5-ALA) is administered orally, 3-4 hours before start of an operation. Under general (and epidural) anesthesia and peumoperitoneum with carbon dioxide gas, laparoscopic examinati

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients who have advanced gastric cancer with serosal invasion and scheduled a staging laparoscopy or a curative gastric resection. Patients who signed informed consent.

Exclusion criteria

Exclusion criteria: Porphyria. A history of photosensitivity. Taking drugs that may cause photosensitivity. Patients are judged to be inappropriate to participate in this study for any reason by the investigators.

Design outcomes

Primary

Measure	Time frame
Additive effect to a photodynamic diagnostic power for peritoneal dissemination of gastric cancer with 5-ALA.	—

Secondary

Measure	Time frame
Sensitivity, specificity, positive predictive value, negative predictive value of examination for peritoneal disseminated malignant nodules from primary gastric cancer using photodynamic diagnosis with 5-ALA.	—

Countries

Japan

Contacts

Public ContactKazuhiro Imamura

Tokyo Metropolitan Tama Medical Center Department of Surgery

imamurakazu@mac.com042-323-5111

Outcome results

None listed

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