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Study of OCV-501 in Patients With Acute Myeloid Leukemia (AML) (Extension From Study 311-10-001)

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01475370
Enrollment
18
Registered
2011-11-21
Start date
2012-01-24
Completion date
2016-12-22
Last updated
2021-03-02

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

Conditions

Acute Myeloid Leukemia

Keywords

Acute myeloid leukemia, WT1

Brief summary

The purpose of this study is to assess the safety of OCV-501 in patients with AML who completed the Study 311-10-001 and were judged that there was no relapse by any inspections in the end of the study.

Interventions

1. Before the recommended dose will be decided OCV-501 will be subcutaneously administered once a week at the dose in the study 311-10-001. 2. After the recommended dose will be decided OCV-501 will be subcutaneously administered once a week at the recommended dose.

Sponsors

Otsuka Pharmaceutical Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
60 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients who completed the Study 311-10-001 and were judged that there was no relapse by any inspections in the end of the study. * Patients who are capable of giving informed consent

Exclusion criteria

* Patients failed to discontinue the Study 311-10-001 even though patients met the discontinuation criteria. * Patients who have participated in any other clinical trials , excluding the Study 311-10-001).

Design outcomes

Primary

MeasureTime frameDescription
Incidence of Relapse of Acute Myeloid Leukemia Based on the International Working Group Response CriteriaTreatment period (from the first IMP administration until the time of discontinuation)Bone marrow samples were taken by bone marrow aspiration, and the percentage of bone marrow blasts was calculated. The result was assessed according to the International Working Group Response Evaluation Criteria where a case was designated as relapse if any of the following occurred: reappearance of leukemic blasts in the peripheral blood or ≥ 5% blasts in the bone marrow after complete response (morphologic relapse).

Countries

Japan

Participant flow

Recruitment details

This trial was an extension trial from the preceding Trial 311-10-001. Subjects who had undergone the observations, examinations, and evaluations which were stipulated for Trial 311-10-001 and who met all the inclusion criteria and did not fall under any of the exclusion criteria for this trial were selected for this trial.

Participants by arm

ArmCount
OCV-501 0.3mg
OCV-501 was subcutaneously administered once a week, with each subject receiving the same dose as in Trial 311-10-001 (i.e. continued administration of 0.3 mg).
3
OCV-501 1 mg
OCV-501 was subcutaneously administered once a week, with each subject receiving the same dose as in Trial 311-10-001 (i.e. continued administration of 1 mg).
3
OCV-501 3 mg
OCV-501 was subcutaneously administered once a week, with each subject receiving the same dose as in Trial 311-10-001 (i.e. continued administration of 3 mg).
3
Total9

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyExacerbation of primary disease222
Overall StudyOther than specified100
Overall StudyStudy drug administration difficult011

Baseline characteristics

CharacteristicOCV-501 0.3mgOCV-501 1 mgOCV-501 3 mgTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
2 Participants3 Participants2 Participants7 Participants
Age, Categorical
Between 18 and 65 years
1 Participants0 Participants1 Participants2 Participants
Race/Ethnicity, Customized
Japanese
3 Participants3 Participants3 Participants9 Participants
Region of Enrollment
Japan
3 Participants3 Participants3 Participants9 Participants
Sex: Female, Male
Female
2 Participants2 Participants0 Participants4 Participants
Sex: Female, Male
Male
1 Participants1 Participants3 Participants5 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 30 / 30 / 3
other
Total, other adverse events
2 / 33 / 33 / 3
serious
Total, serious adverse events
3 / 32 / 33 / 3

Outcome results

Primary

Incidence of Relapse of Acute Myeloid Leukemia Based on the International Working Group Response Criteria

Bone marrow samples were taken by bone marrow aspiration, and the percentage of bone marrow blasts was calculated. The result was assessed according to the International Working Group Response Evaluation Criteria where a case was designated as relapse if any of the following occurred: reappearance of leukemic blasts in the peripheral blood or ≥ 5% blasts in the bone marrow after complete response (morphologic relapse).

Time frame: Treatment period (from the first IMP administration until the time of discontinuation)

ArmMeasureValue (NUMBER)
OCV-501 0.3mgIncidence of Relapse of Acute Myeloid Leukemia Based on the International Working Group Response Criteria2 participants
OCV-501 1 mgIncidence of Relapse of Acute Myeloid Leukemia Based on the International Working Group Response Criteria2 participants
OCV-501 3 mgIncidence of Relapse of Acute Myeloid Leukemia Based on the International Working Group Response Criteria2 participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026