Clinical trial • Phase III • Oncology
Venetoclax for Chronic lymphocytic leukaemia | Small lymphocytic lymphoma
Phase III trial of Venetoclax for Chronic lymphocytic leukaemia | Small lymphocytic lymphoma.
Overview
- Trial Therapeutic Area
- Oncology
- Trial Disease
- Chronic lymphocytic leukaemia | Small lymphocytic lymphoma
- Trial Stage
- Phase III
- Drug Modality
- Small molecule | Monoclonal antibody
Key dates
- Initial CTIS Submission Date
- 26-11-2024
- First CTIS Authorization Date
- 27-03-2025
Trial design
Randomised, open-label, three-arm randomised comparison: arm a (venetoclax + obinutuzumab fixed-duration over 12 cycles): obinutuzumab intravenous on days 1 (and 2), 8 and 15 of cycle 1, and day 1 of cycles 2-6; venetoclax continuous daily starting day 22 of cycle 1 with weekly dose ramp-up from 20 mg to 400 mg over five weeks. arm b (venetoclax + pirtobrutinib fixed-duration over 15 cycles): pirtobrutinib started day 1 of cycle 1 and continued daily; venetoclax daily starting on day 1 of cycle 4 with weekly ramp-up from 20 mg to 400 mg over five weeks. arm c (venetoclax + pirtobrutinib mrd-guided duration 15–36 cycles): pirtobrutinib daily from day 1 of cycle 1; venetoclax daily starting on day 1 of cycle 4 with weekly ramp-up from 20 mg to 400 mg over five weeks.-controlled, adaptive Phase III trial.
- Randomised
- Yes
- Open Label
- Yes
- Comparator
- Three-arm randomised comparison: Arm A (Venetoclax + Obinutuzumab fixed-duration over 12 cycles): obinutuzumab intravenous on days 1 (and 2), 8 and 15 of cycle 1, and day 1 of cycles 2-6; venetoclax continuous daily starting day 22 of cycle 1 with weekly dose ramp-up from 20 mg to 400 mg over five weeks. Arm B (Venetoclax + Pirtobrutinib fixed-duration over 15 cycles): pirtobrutinib started day 1 of cycle 1 and continued daily; venetoclax daily starting on day 1 of cycle 4 with weekly ramp-up from 20 mg to 400 mg over five weeks. Arm C (Venetoclax + Pirtobrutinib MRD-guided duration 15–36 cycles): pirtobrutinib daily from day 1 of cycle 1; venetoclax daily starting on day 1 of cycle 4 with weekly ramp-up from 20 mg to 400 mg over five weeks.
- Adaptive
- True, MRD-guided adaptive treatment duration in arm C: treatment duration individualized based on minimal residual disease assessments (arm C duration 15 up to 36 cycles depending on MRD results).
- Biomarker Stratified
- True, biomarkers: TP53 deletion and/or mutation (present vs absent); IGHV mutational status (unmutated vs mutated).
- Target Sample Size
- 746
- Trial Duration For Participant
- 1008
Stratification factors
- TP53 deletion and/or mutation (present vs absent)
- IGHV mutational status (unmutated vs mutated)
- Type of lymphoma (CLL vs SLL)
- Age (≤ 65 vs > 65 years)
Eligibility
Recruits 746 Vulnerable population not selected for inclusion (isVulnerablePopulationSelected: false). The protocol excludes legally incapacitated persons and prisoners/institutionalised subjects; all participants must be able and willing to provide written informed consent (no assent procedures described because minimum age is 18 years)..
- Pregnancy Exclusion
- Pregnant women and nursing mothers (a negative pregnancy test is required for all women of childbearing potential within 7 days before start of treatment)
- Vulnerable Population
- Vulnerable population not selected for inclusion (isVulnerablePopulationSelected: false). The protocol excludes legally incapacitated persons and prisoners/institutionalised subjects; all participants must be able and willing to provide written informed consent (no assent procedures described because minimum age is 18 years).
Inclusion criteria
- {"criterion_text":"- Documented CLL/SLL requiring treatment according to iwCLL criteria with a CLL phenotype cell count >10-2 tracked by flow cytometry at screening."}
- {"criterion_text":"- Adequate bone marrow function as indicated by: - an absolute neutrophil count ≥ 1 x 10⁹/l - a hemoglobin value ≥8.0 g/dL without transfusions during the last 7 days unless directly attributable to CLL/SLL (e.g. bone marrow infiltration) and - a platelet count ≥ 25 x 10⁹/l unless due to the CLL/SLL, in this case, platelet count should be ≥ 10.000/µl without transfusion during the last 7 days."}
- {"criterion_text":"- Adequate renal function, as indicated by a creatinine clearance ≥30ml/min calculated according to the MDRD-formula or an equally accurate method (e.g. 24 hr. urine collection)"}
- {"criterion_text":"- Adequate liver function as indicated by: - a total bilirubin≤ 2 x the institutional upper limit of normal (ULN) value, and -\tAST/ ALT ≤ 2.5 x the institutional ULN value, unless directly attributable to the patient’s CLL/SLL or to Gilbert’s Syndrome."}
- {"criterion_text":"- Negative serological testing for hepatitis B (HBsAg negative and anti-HBc negative; patients positive for anti-HBc may be included if PCR for HBV DNA is negative and HBV-DNA PCR is performed every month until 12 months after last dosage of obinutuzumab), negative testing for hepatitis-C (HCV-RNA PCR) and negative HIV test within 6 weeks prior to registration"}
- {"criterion_text":"- Age ≥ 18 years"}
- {"criterion_text":"- Eastern Cooperative Oncology Group Performance Status (ECOG) performance status"}
- {"criterion_text":"- Life expectancy ≥ 6 months"}
- {"criterion_text":"- Ability and willingness to provide written informed consent and to adhere to the study visit schedule and other protocol requirements."}
Exclusion criteria
- {"criterion_text":"- Any prior CLL- or SLL-specific therapies, except for corticosteroid treatment administered due to necessary immediate intervention (within the last 10 days before start of study treatment only dose equivalents up to 20 mg prednisolone per day are permitted)."}
- {"criterion_text":"- Decompensated auto-immune cytopenia (defined as ongoing drop in hemoglobin (AIHA) or in platelets (ITP) in spite of prednisolone and/or intravenous immunoglobulins treatment)."}
- {"criterion_text":"- (Suspicion of) transformation of CLL/SLL (i.e. Richter`s transformation) or central nervous system (CNS) involvement."}
- {"criterion_text":"- (Suspicion of) progressive multifocal leukoencephalopathy (PML)."}
- {"criterion_text":"- Malignant neoplasm other than CLL/SLL unless in remission and unlikely to adversely impact on patient´s life expectancy, defined as curatively treated non-melanoma skin cancer or other neoplasias treated curatively ≥1 year ago, without signs of progression and not currently requiring systemic therapies (with the exception of ongoing anti-hormonal therapy)."}
- {"criterion_text":"- Active infection requiring systemic treatment, including HIV, HBV and HCV"}
- {"criterion_text":"- Increased risk of bleeding, e.g. due to: - known bleeding disorder - anticoagulant therapy with phenprocoumon or other vitamin K antagonists (anticoagulation with a direct oral Xa or thrombin inhibitor (DOAC) or heparin) is permitted) - major surgery ≤4 weeks prior to randomization - stroke or intracranial hemorrhage ≤ 6 months of randomization"}
- {"criterion_text":"- Any comorbidity or organ system impairment rated with a CIRS (cumulative illness rating scale) score of 4 or any other life-threatening illness, medical condition or organ system dysfunction that – in the investigator´s opinion - could compromise the patient`s safety or interfere with the absorption or metabolism of the study drugs (e.g, inability to swallow tab-lets or impaired resorption in the gastrointestinal tract)"}
- {"criterion_text":"- Pregnant women and nursing mothers (a negative pregnancy test is required for all women of childbearing potential within 7 days before start of treatment)"}
- {"criterion_text":"- Fertile men or women of childbearing potential unless: - surgically sterile or ≥ 2 years after the onset of menopause, or -\twilling to use two methods of reliable contraception including one highly effective (Pearl Index <1) and one additional effective (barrier) method during study treatment and for the required time period thereafter (at least one and up to 18 months after end of study treatment depending of study drug(s) used, see chapter 2.2.2.1 Known risks relevant with all study drugs)."}
- {"criterion_text":"- Vaccination with a live vaccine ≤ 28 days prior to registration"}
- {"criterion_text":"- Use of investigational agents which might interfere with the study drug within 28 days prior to registration"}
- {"criterion_text":"- Legal incapacity"}
- {"criterion_text":"- Prisoners or subjects who are institutionalized by regulatory or court order"}
- {"criterion_text":"- Persons who are in dependence to the sponsor or an investigator"}
Endpoints
Primary endpoints
- {"endpoint_text":"- Progression-free survival (PFS)","definition_or_measurement_approach":"Progression-free survival (PFS) measured as time to progression or death; primary objective: compare PFS between MRD-guided Venetoclax/Pirtobrutinib vs fixed-duration Venetoclax/Pirtobrutinib and MRD-guided Venetoclax/Pirtobrutinib vs fixed-duration Venetoclax/Obinutuzumab."}
Secondary endpoints
- {"endpoint_text":"- Measurable residual disease (MRD) levels by different types of measurement from different materials at final restaging (performed 3 months after end of treatment in all patients - except for patients that show progression of CLL disease or Richter transformation before this point of time - which differs depending on the duration of treatment) and selected other time points during and after treatment","definition_or_measurement_approach":"MRD assessed by different measurement techniques from different sample types at final restaging (3 months after end of treatment) and at selected other time points during and after treatment."}
- {"endpoint_text":"- Overall response rate (ORR) and complete response (CR) rate at the final restaging and selected other time points","definition_or_measurement_approach":"ORR and CR assessed according to iwCLL guidelines at final restaging (3 months after end of treatment) and selected other time points."}
- {"endpoint_text":"- Duration of response (DOR)","definition_or_measurement_approach":"DOR assessed per iwCLL criteria."}
- {"endpoint_text":"- Time to next treatment (TTNT)","definition_or_measurement_approach":"Time from randomisation or end of treatment to initiation of next anti-lymphoma therapy."}
- {"endpoint_text":"- Treatment-free survival (TFS)","definition_or_measurement_approach":"Time patient remains alive and free from systemic anti-CLL therapy (definition per protocol)."}
- {"endpoint_text":"- Overall survival (OS)","definition_or_measurement_approach":"Time from randomisation to death from any cause."}
- {"endpoint_text":"- Safety parameters: Type, frequency and severity of - adverse events (AEs) -\tadverse events of particular interest (AEPI)","definition_or_measurement_approach":"Safety assessed by recording type, frequency and severity of AEs and AEPI (standard CTCAE grading expected per protocol)."}
- {"endpoint_text":"- Best response assessed until 1 year after end of treatment","definition_or_measurement_approach":"Best response as per iwCLL guidelines up to 1 year after end of treatment."}
Recruitment
- Registry Or Advocacy Recruitment
- True, Cancer Trials Ireland
- Planned Sample Size
- 746
- Recruitment Window Months
- 72
- Consent Approach
- Written informed consent required from each participant ("Ability and willingness to provide written informed consent"). Minimum age 18 years so consent provided by participant; legal incapacity excluded. Pregnancy testing required for all women of childbearing potential within 7 days prior to treatment start. Informed consent / subject information documents available in multiple country/language-specific versions (documents present for IT/EN/FR/DE/NL/ES/PL/SE/NO/FI/CZ/DK and others per country Part II submissions).
Sponsor
Primary sponsor
- Full Name
- University Of Cologne
- Organisation Type
- Educational Institution
- Country Of Registered Address
- Germany
Contract research organisations
- Name
- Almac Clinical Services (Ireland) Limited
- Responsibilities
- duty codes [14] (as listed in sponsors.thirdParties)
- Name
- Almac Clinical Technologies LLC
- Responsibilities
- duty codes [3] (as listed in sponsors.thirdParties)
- Name
- Pharmaceutical Development And Services S.r.l.
- Responsibilities
- duty codes [1,12,2,5] (as listed in sponsors.thirdParties)
Third parties
- {"country":"Sweden","full_name":"Uppsala University Hospital","duties_or_roles":"[1,12,2,5]","organisation_type":"Hospital/Clinic/Other health care facility"}
- {"country":"Denmark","full_name":"Aarhus Universitet","duties_or_roles":"[1]","organisation_type":"Educational Institution"}
- {"country":"Denmark","full_name":"Rigshospitalet","duties_or_roles":"[12,2,5]","organisation_type":"Hospital/Clinic/Other health care facility"}
- {"country":"Germany","full_name":"University Hospital Cologne AöR","duties_or_roles":"[1]","organisation_type":"Hospital/Clinic/Other health care facility"}
- {"country":"Germany","full_name":"Universitaetsklinikum Schleswig-Holstein AöR","duties_or_roles":"[4]","organisation_type":"Hospital/Clinic/Other health care facility"}
- {"country":"Spain","full_name":"Red De Apoyo A La Investigacion Clinica En Hematologia Y Hemoterapia S.L.","duties_or_roles":"[1,12,2,5]","organisation_type":"Pharmaceutical company"}
- {"country":"Denmark","full_name":"Odense University Hospital","duties_or_roles":"[1]","organisation_type":"Hospital/Clinic/Other health care facility"}
- {"country":"Ireland","full_name":"Almac Clinical Services (Ireland) Limited","duties_or_roles":"[14]","organisation_type":"Pharmaceutical company"}
- {"country":"Italy","full_name":"Pharmaceutical Development And Services S.r.l.","duties_or_roles":"[1,12,2,5]","organisation_type":"Pharmaceutical company"}
- {"country":"France","full_name":"LYSARC","duties_or_roles":"[1,12,2,5]","organisation_type":"Laboratory/Research/Testing facility"}
- {"country":"Netherlands","full_name":"Hemato-Oncologie voor Volwassenen Nederland (Hovon) Stichting","duties_or_roles":"[1,12,2,5]","organisation_type":"Hospital/Clinic/Other health care facility"}
- {"country":"United States","full_name":"Almac Clinical Technologies LLC","duties_or_roles":"[3]","organisation_type":"Pharmaceutical company"}
- {"country":"Norway","full_name":"St. Olavs Hospital HF","duties_or_roles":"[1,12,2,5]","organisation_type":"Hospital/Clinic/Other health care facility"}
- {"country":"Poland","full_name":"Kapadi Sp. z o.o.","duties_or_roles":"[1,12,2,5]","organisation_type":"Pharmaceutical company"}
- {"country":"Czechia","full_name":"Masarykova Univerzita","duties_or_roles":"[1]","organisation_type":"Educational Institution"}
- {"country":"Czechia","full_name":"University Hospital Olomouc","duties_or_roles":"","organisation_type":"Hospital/Clinic/Other health care facility"}
- {"country":"Ireland","full_name":"Cancer Trials Ireland","duties_or_roles":"[1,12,2,5]","organisation_type":"Patient organisation/association"}
Investigational products
- Investigational Product Name
- Venetoclax
- Active Substance
- Venetoclax
- Modality
- Small molecule
- Routes Of Administration
- Oral
- Route
- Oral
- Authorisation Status
- prodAuthStatus: 1
- Starting Dose
- Starting ramp-up from 20 mg weekly increasing to 400 mg (weekly dose escalation over five weeks) then continuous daily dosing
- Dose Levels
- 20 mg -> 400 mg (weekly ramp-up over five weeks)
- Frequency
- Daily (continuous after ramp-up)
- Maximum Dose
- 400 mg daily
- Dose Escalation Increase
- 20 mg initial -> escalated weekly to 400 mg over five weeks
- Investigational Product Name
- Pirtobrutinib (PIRTOBRUTINIB)
- Active Substance
- Pirtobrutinib
- Modality
- Small molecule
- Routes Of Administration
- Oral
- Route
- Oral
- Authorisation Status
- prodAuthStatus: 2
- Starting Dose
- Pirtobrutinib started on day 1 of cycle 1 and continued daily (per protocol); product record max daily dose 200 mg
- Dose Levels
- Up to 200 mg daily (product maxDailyDoseAmount: 200 mg)
- Frequency
- Daily
- Maximum Dose
- 200 mg daily
- Investigational Product Name
- Obinutuzumab (Gazyvaro 1,000 mg concentrate for solution for infusion.)
- Active Substance
- Obinutuzumab
- Modality
- Monoclonal antibody
- Routes Of Administration
- Intravenous infusion
- Route
- Intravenous
- Authorisation Status
- prodAuthStatus: 2; EU/1/14/937/001
- Starting Dose
- Obinutuzumab 1,000 mg IV administered per schedule (days 1 and 2, 8 and 15 of cycle 1; day 1 of cycles 2–6 as per Ven-Obi schema)
- Dose Levels
- 1,000 mg per infusion (per SmPC used in trial)
- Frequency
- Per infusion schedule in cycle 1 and cycles 2–6
- Maximum Dose
- 1000 mg per dose (per product record)
- Combination Treatment
- Yes
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