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Phase 1, Phase 2RecruitingPriority 2 · High priorityNCT07075328

A Phase I/II Study of OJP-001 in Patients With Adult T-cell Leukemia/Lymphoma

ClinicalTrials.gov

Plain-language summary

This Phase 1, Phase 2 trial is testing Drug:5-ALA and Device:Photodynamic system for people whose adult T-cell leukemia/lymphoma has come back or has not responded to previous treatment. The study starts with lower doses to find the safest effective dose before testing in more people. This trial does not currently list US sites.

Who can join (key eligibility)

  • Age 20 Years to 85 Years years
  • Lymphoma came back or did not respond to prior treatment
  • Must be well enough for treatment (adequate performance status)

Final eligibility is determined by the trial team. This list is a starting point only.

What's being tested

Drug:5-ALA, Device:Photodynamic system (OTHER): \[Phase I part\] Patients will receive 5-ALA administered orally once. After administration of 5-ALA, patients will receive Photodynamic system once. Dosage of 5-ALA: 10 mg/kg (1st cohort), 20 mg/kg (2nd cohort), 40 mg/kg (3rd cohort), 60 mg/kg (4th cohort) \[Phase II part\] Patients will receive 5-ALA and Photodynamic system once a week for 6 months.

Drugs / treatments
Drug:5-ALA, Device:Photodynamic system
Treatment length
Ask the trial team for details
Visit frequency
Ask the trial team for details

At a glance

Phase
Phase 1, Phase 2
Status
Recruiting
Design
Non-randomized, open-label
Enrollment target
49 patients
Primary endpoint
Phase I part: Dose limiting toxicity; Phase II part: Response rate (best overall response)
Ages
20 Years to 85 Years
Start date
2024-04-01
Est. completion
2028-08-31

Locations

0 US sites · 5 total

No US sites currently listed.

Contact

Sponsor
Otsuka Medical Devices Co., Ltd. Japan (INDUSTRY)
Contact
Kentaro Ishinabe | OtsukaRegistry-CT@otsuka.jp | +81363617459

Tags

ATLLRelapsed/Refractory
TrialCompass — Clinical Trial Summary

A Phase I/II Study of OJP-001 in Patients With Adult T-cell Leukemia/Lymphoma

NCT07075328

Phase: Phase 1, Phase 2 | Status: Recruiting | Priority: High

Plain-language summary

This Phase 1, Phase 2 trial is testing Drug:5-ALA and Device:Photodynamic system for people whose adult T-cell leukemia/lymphoma has come back or has not responded to previous treatment. The study starts with lower doses to find the safest effective dose before testing in more people. This trial does not currently list US sites.

Who can join

  • Age 20 Years to 85 Years years
  • Lymphoma came back or did not respond to prior treatment
  • Must be well enough for treatment (adequate performance status)

What's being tested

Drug:5-ALA, Device:Photodynamic system (OTHER): \[Phase I part\] Patients will receive 5-ALA administered orally once. After administration of 5-ALA, patients will receive Photodynamic system once. Dosage of 5-ALA: 10 mg/kg (1st cohort), 20 mg/kg (2nd cohort), 40 mg/kg (3rd cohort), 60 mg/kg (4th cohort) \[Phase II part\] Patients will receive 5-ALA and Photodynamic system once a week for 6 months.

Drugs / treatments: Drug:5-ALA, Device:Photodynamic system

Treatment length: Ask the trial team for details

Visit frequency: Ask the trial team for details

Trial design

Non-randomized, open-label

Enrollment target: 49 patients

Primary endpoint: Phase I part: Dose limiting toxicity; Phase II part: Response rate (best overall response)

Ages: 20 Years to 85 Years

Start date: 2024-04-01 | Est. completion: 2028-08-31

Locations

0 US sites · 5 total

Contact

Kentaro Ishinabe | OtsukaRegistry-CT@otsuka.jp | +81363617459

Sponsor: Otsuka Medical Devices Co., Ltd. Japan (INDUSTRY)

Tags

ATLL · Relapsed/Refractory

View on ClinicalTrials.gov

https://clinicaltrials.gov/study/NCT07075328

Prepared using TrialCompass (trialcompass.com) on June 19, 2026. For informational purposes only. Always discuss with your healthcare team.
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Data sourced from ClinicalTrials.gov.

For informational purposes only. Not medical advice — always consult your healthcare team.

Built with care for the rare cancer community.

Data last updated: June 2026

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