Acute Lymphoblastic LeukemiaNCT05657652
CAV Regimen for R/R Ph- B-ALL
A study testing cladribine, cytarabine,venetoclax in people with Acute Lymphoblastic Leukemia, run by The First Affiliated Hospital of Soochow University at 1 site in China.
Trial summary
This study aims to investigate the efficacy and safety of cladribine, venetoclax combined with cytarabine and venetoclax (CAV regimen) for relapsed/refractory (R/R) Philadelphia Chromosome-negative (Ph-) B-cell acute lymphoblastic leukemia (B-ALL). Read more about this study
- Who is it for?
- Ages 15 to 70 years
- Conditions the study is for
- Acute Lymphoblastic Leukemia
- What is being tested?
- cladribine, cytarabine,venetoclax
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 36 participants
- Where
- 1 siteChina
- Study dates
- 1 Oct 2022to Oct 2026
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 15 to 70 years
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- Aged 15-70 years old.
- Patients diagnosed with R/R Ph- B-ALL.
- Patients with ALL must meet one of the following criteria, A or B: A: Refractory ALL disease was defined as follows: (1) failure to attain CR following exposure to at least 1 courses of standard induction therapy; B: Relapsed ALL disease was defined as follows: (1) reappearance of leukemic blasts in the peripheral blood after CR; or (2) detection of ≥ 5% blasts in the BM not attributable to another cause (e.g., BM regeneration after consolidation therapy); or (3) extramedullary relapse.
- ECOG performance status score less than 2.
- Expected survival time ≥ 12 weeks.
- Patients without serious heart, lung, liver, or kidney dysfunction.
- Able to understand and provide informed consent.
Who cannot join
- Patients who are allergic to the study drug or drugs with similar chemical structures.
- Pregnant or lactating women, and women of childbearing age who do not want to practice effective methods of contraception.
- Active infection.
- Active bleeding.
- Patients with new thrombosis, embolism, cerebral hemorrhage, or other diseases or a medical history within one year before enrollment.
- Patients with mental disorders or other conditions.
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- Liver function abnormalities (total bilirubin > 1.5 times of the upper limit of the normal range, ALT/AST > 2.5 times of the upper limit of the normal range or patients with liver involvement whose ALT/AST > 1.5 times of the upper limit of the normal range), or renal dysfunction (Ccr<50ml/h).
- Patients with a history of clinically significant QTc interval prolongation (male > 450 ms; female > 470 ms), ventricular heart tachycardia and atrial fibrillation, II-degree heart block, myocardial infarction attack within one year before enrollment, and congestive heart failure, and patients with coronary heart disease who have clinical symptoms and requiring drug treatment.
- Surgery on the main organs within the past six weeks.
- Drug abuse or long-term alcohol abuse that would affect the evaluation results.
- Patients who have received organ transplants.
- Patients not suitable for the study according to the investigator's assessment.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
China1 site, 1 recruiting
- Recruiting
The First Affiliated Hospital of Soochow University
Suzhou, Jiangsu, 215006
Sheng-Li Xue, M.D., +86 512 6778 1139, slxue@suda.edu.cn
About this study
Official title: Venetoclax, Cladribine Plus Low-dose Cytarabine for Relapsed/Refractory Philadelphia Chromosome-negative (Ph-) B-cell Acute Lymphoblastic Leukemia (B-ALL): a Single-arm, Multicenter Study
This study aims to investigate the efficacy and safety of cladribine, venetoclax combined with cytarabine and venetoclax (CAV regimen) for relapsed/refractory (R/R) Philadelphia Chromosome-negative (Ph-) B-cell acute lymphoblastic leukemia (B-ALL).
Read the detailed description
Relapse is common in Ph- B-ALL and a proportion of patients present refractory to initial treatment. Treatments for these patients consist immunotherapy and conventional chemotherapy. The former is too expensive and the latter has a low remission rate. Treatment for R/R Ph- B-ALL still remains a challenge. The efficacy and safety of cladribine, venetoclax and cytarabine (CAV) has not been explored in ALL. Thus investigators design such a clinical trial to investigate the efficacy and safety of CAV regimen for R/R Ph- B-ALL.
- Conditions
- Acute Lymphoblastic Leukemia
- Being tested
- cladribine, cytarabine,venetoclax
- Keywords
- venetoclax, cladribine, cytarabine, relapsed/refractory ALL
- Medical subject headings
- Precursor Cell Lymphoblastic Leukemia-Lymphoma, Recurrence
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
cladribine, cytarabine,venetoclaxDrug
Cladribine 5 mg/m2/day, cytarabine 20mg q12h, venetoclax 100mg d1, 200 d2, 400 mg/day from day 3 to day 21.
| Study group | Role | What they receive |
|---|---|---|
| CAV regimen | Experimental | Not described Receives: Drug: cladribine, cytarabine,venetoclax |
What is being measured
The primary outcome is the main question the study is designed to answer.
Overall response rate (ORR)
The overall response (completed remission, completed remission with incomplete blood count recovery)
Measured: ORR assessment is measured on days 21 from the start of CAV regimen
Secondary outcomes (3)
Overall Survival (OS)
OS is measured from the time of enrollment to this trial to the date of death from any cause; patients not known to have died at last follow-up are censored on the date they were last known to be alive.
Measured: 2 years
Progression-Free Survival (PFS)
PFS is measured from the time of enrollment to this study to progression or death.
Measured: 2 years
Adverse events
It is evaluated and graded according to CTCAE 5.0.
Measured: 1 month
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Dec 2022
- Study start1 Oct 2022
- Primary completionOct 2026 (estimated)
- Study completionOct 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Acute Lymphoblastic LeukemiaStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 36 participants (estimated)
Sponsor and investigators
- Lead sponsor
- The First Affiliated Hospital of Soochow University
- Sponsor type
- University, hospital or other
- Collaborators
- Jining Medical University, The Second People's Hospital of Huai'an, The First Affiliated Hospital of Bengbu Medical University, Northern Jiangsu People's Hospital, Affiliated Hospital of Nantong University, Suzhou Hospital of Traditional Chinese Medicine
- Responsible party
- Principal investigator, Sheng-Li Xue, MD, The First Affiliated Hospital of Soochow University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05657652
- Sponsor's protocol ID
- SZBALL01
- Status last verified
- Dec 2025
- First submitted
- 12 Dec 2022
- Last updated
- 29 Dec 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 29 Dec 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Venetoclax, Cladribine Plus Low-dose Cytarabine for Relapsed/Refractory Philadelphia Chromosome-negative (Ph-) B-cell Acute Lymphoblastic Leukemia (B-ALL): a Single-arm, Multicenter Study
- ClinicalTrials.gov ID
- NCT05657652
- Acronym / sponsor ID
- SZBALL01
- Conditions
- Acute Lymphoblastic Leukemia
- Keywords
- venetoclax, cladribine, cytarabine, relapsed/refractory ALL
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 36 participants (estimated)
- Lead sponsor
- The First Affiliated Hospital of Soochow UniversityUniversity, hospital or other
- Collaborators
- Jining Medical University, The Second People's Hospital of Huai'an, The First Affiliated Hospital of Bengbu Medical University, Northern Jiangsu People's Hospital, Affiliated Hospital of Nantong University, Suzhou Hospital of Traditional Chinese Medicine
- Study start
- 1 Oct 2022 (actual)
- Primary completion
- Oct 2026 (estimated)
- Study completion
- Oct 2026 (estimated)
- First posted
- 20 Dec 2022 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study aims to investigate the efficacy and safety of cladribine, venetoclax combined with cytarabine and venetoclax (CAV regimen) for relapsed/refractory (R/R) Philadelphia Chromosome-negative (Ph-) B-cell acute lymphoblastic leukemia (B-ALL).
Detailed description
Relapse is common in Ph- B-ALL and a proportion of patients present refractory to initial treatment. Treatments for these patients consist immunotherapy and conventional chemotherapy. The former is too expensive and the latter has a low remission rate. Treatment for R/R Ph- B-ALL still remains a challenge. The efficacy and safety of cladribine, venetoclax and cytarabine (CAV) has not been explored in ALL. Thus investigators design such a clinical trial to investigate the efficacy and safety of CAV regimen for R/R Ph- B-ALL.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| CAV regimen | Experimental | Drug: cladribine, cytarabine,venetoclax |
Who may qualify
- Ages
- 15 to 70 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (7 listed)
- Aged 15-70 years old.
- Patients diagnosed with R/R Ph- B-ALL.
- Patients with ALL must meet one of the following criteria, A or B: A: Refractory ALL disease was defined as follows: (1) failure to attain CR following exposure to at least 1 courses of standard induction therapy; B: Relapsed ALL disease was defined as follows: (1) reappearance of leukemic blasts in the peripheral blood after CR; or (2) detection of ≥ 5% blasts in the BM not attributable to another cause (e.g., BM regeneration after consolidation therapy); or (3) extramedullary relapse.
- ECOG performance status score less than 2.
- Expected survival time ≥ 12 weeks.
Key exclusion criteria (12 listed)
- Patients who are allergic to the study drug or drugs with similar chemical structures.
- Pregnant or lactating women, and women of childbearing age who do not want to practice effective methods of contraception.
- Active infection.
- Active bleeding.
- Patients with new thrombosis, embolism, cerebral hemorrhage, or other diseases or a medical history within one year before enrollment.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| cladribine, cytarabine,venetoclaxCladribine 5 mg/m2/day, cytarabine 20mg q12h, venetoclax 100mg d1, 200 d2, 400 mg/day from day 3 to day 21. | Drug | CAV regimen |
Primary outcome
Overall response rate (ORR)
Time frame: ORR assessment is measured on days 21 from the start of CAV regimen
The overall response (completed remission, completed remission with incomplete blood count recovery)
3 secondary outcomes
Overall Survival (OS)
Time frame: 2 years
Progression-Free Survival (PFS)
Time frame: 2 years
Adverse events
Time frame: 1 month
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 29 Dec 2025.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing cladribine, cytarabine,venetoclax in people with Acute Lymphoblastic Leukemia, run by The First Affiliated Hospital of Soochow University at 1 site in China.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 7 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 29 Dec 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Overall response rate (ORR) (time frame: ORR assessment is measured on days 21 from the start of CAV regimen). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Dec 2025.