Clinical trial NCT01244451: GIMEMA CLL0809 Study (BendOfa)
Official title: A Single-Arm Multi-Center Trial of Bendamustine Given With Ofatumumab (BendOfa) in Patients With Refractory or Relapsed Chronic Lymphocytic Leukemia (CLL). EudraCT Number 2009-017663-42. GIMEMA CLL0809 Protocol
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE2
Conditions: Patients With CLL Relapsing After an Initial Response (CR, PR ≥ 6 Months) Following no More Than Two Prior Treatment Lines; or
Patients With CLL Refractory (SD, PD or CR/PR < 6 Months) Following no More Than Two Prior Treatment Lines
Keywords: CLL
relapsed
refractory
Bendamustine
Ofatumumab
Lead sponsor: Gruppo Italiano Malattie EMatologiche dell'Adulto
Sponsor class: OTHER
First posted: 2010-11-19
Enrollment: 49
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: In the last ten years there have been significant developments in CLL treatment. The advent of fludarabine, rituximab and the association of chemo-immunotherapy have substantially increased overall response rate, CR rate, time to progression and may also have an impact on overall survival.

Even though, CLL remains incurable and all patients eventually relapse and progressively become resistant to treatment. The development of an effective therapy that is not cross-resistant with the ones currently available as front-line treatment, is one of the clinical unmet needs within CLL.

BendOfa is a non comparative phase II trial designed to determine the therapeutic benefit of bendamustine given together to ofatumumab in relapsed or resistant patients with CLL.

Bendamustine is approved by FDA for CLL treatment, it is an hybrid drug with alkylating agents and purine analogue properties that may lack of cross resistance with fludarabine. It was utilized in CLL as a single agent and its association with rituximab is currently under clinical investigation.

Ofatumumab is a new fully human anti-CD20 monoclonal antibody with high in vitro efficacy on CD20 low-expressing CLL cells. An early report showed that ofatumumab in single therapy is effective in highly pre-treated refractory CLL patients.

Both drugs were generally well tolerated without unexpected untoward toxicity. On the basis of these data, bendamustine and ofatumumab could be a new effective and well tolerated combination for patients with relapsed and refractory CLL.


Eligibility criteria: Inclusion Criteria:

* Patients with CLL relapsing after an initial response (CR, PR ≥ 6 months) following no more than two prior treatment lines; or
* Patients with CLL refractory (SD, PD or CR/PR \< 6 months) following no more than two prior treatment lines
* Patients requiring treatment according to 2008 revised IWCLL guidelines
* No more than 2 prior treatment lines
* Age older or equal to 18 years
* No active malignancies during the previous 5 years, with the exception of currently treated basal cell or squamous cell carcinoma of the skin, or carcinoma "in situ" of any origin
* No prior treatment with conventional chemotherapy within the prior 4 weeks and with monoclonal antibodies within the prior 16 weeks
* ECOG performance status of ≤2 at study entry
* Laboratory test results within these ranges:

Serum creatinine ≤ 2 x UNL Creatinine clearance ≥ 50 ml/min (Cockcroft and Gault formula) Total bilirubin ≤ 2 x UNL (with exception of patients with Gilbert's syndrome) AST (SGOT) and ALT (SGPT) ≤ 2 x UNL non attributable to CLL AST (SGOT) and ALT (SGPT) ≤ 10 x UNL attributable to CLL

* Female subjects of childbearing potential(FCBP) must:

Understands the potential teratogenic risk to the unborn child and the need for effective contraception;

Be capable of complying with effective contraceptive measures.

Be informed and understand the potential consequences of pregnancy and the need to notify her study doctor immediately if there is a risk of pregnancy.

Understand the need to commence the study treatment as soon as study drug is dispensed following a negative pregnancy test.

Understand the need and accepts to undergo pregnancy testing based on the frequency outlined in this protocol.

Females of childbearing potential (FCBP) enrolled in this protocol must agree to use two reliable forms of contraception simultaneously or to practice complete abstinence from heterosexual contact during the following time periods related to this study: 1) before starting study drug; 2) while participating in the study; 3) dose interruptions; and 4) for at least 28 days after study treatment discontinuation.

The two methods of reliable contraception must include one highly effective method and one additional effective (barrier) method. FCBP must be referred to a qualified provider of contraceptive methods if needed. The following are examples of highly effective and additional effective methods of contraception:

Highly effective methods:

* Intrauterine device (IUD)
* Hormonal (birth control pills, injections, implants)
* Tubal ligation
* Partner's vasectomy

Additional effective methods:

* Male condom
* Diaphragm
* Cervical Cap
* Implants and levonorgestrel-releasing intrauterine systems are associated with an increased risk of infection at the time of insertion and irregular vaginal bleeding. Prophylactic antibiotics should be considered particularly in patients with neutropenia.
* Pregnancy testing.

FCBP must have two negative pregnancy tests prior to starting study drug.

FCBP must agree to have a medically supervised pregnancy test every 4 weeks including 4 weeks after the end of study treatment, except in the case of confirmed tubal sterilization. This requirement also applies to women of childbearing potential who practice complete and continued abstinence.

Females must agree to abstain from breastfeeding during study participation and for at least 28 days after study drug discontinuation.

- Male patients must:

Understand the potential teratogenic risk if engaged in sexual activity with a pregnant female or a female of childbearing potential.

Must practice complete abstinence or agree to use a prophylactic during sexual contact with a pregnant female or a female of childbearing potential while participating in the study, during dose interruptions and for at least 6 months following study drug discontinuation, even if he has undergone a successful vasectomy.

If pregnancy or a positive pregnancy test does occur in the partner of a male study patient during study participation, the investigator must be notified immediately.

- Female and male patients

should be instructed never to give this medicinal product to another person and to return any unused capsules to the study doctor at the end of treatment.

Should not donate blood during therapy and for at least 28 days following discontinuation of study drug.

Male patients should not donate semen or sperm while participating in the study, during dose interruptions and for at least 6 months following study drug discontinuation

* Signed written informed consent according to IGH/EU/GCP and Italian laws.

Exclusion Criteria:

* Concurrent use of other anti-cancer agents
* Use of any other experimental drug or therapy within 28 days of baseline
* Positive direct antiglobulin test (DAT) with clinical and laboratory signs of hemolysis and/or autoimmune thrombocytopenia
* Known transformation of CLL
* Known CNS involvement of CLL
* Known positivity for HIV or active HCV and HBV hepatitis.
* Active bacterial, viral or fungal infection requiring systemic anti-viral, antibiotic or anti-fungal therapy.
* Any serious medical condition, laboratory abnormality, or psychiatric illness that would prevent the subject from signing the informed consent form.
* Subjects who have current active hepatic or biliary disease (with exception of patients with Gilbert's syndrome, asymptomatic gallstones or stable chronic liver disease per investigator assessment)
* Pregnant or Lactating Females.
* Any condition, including the presence of laboratory abnormalities, which places the subject at unacceptable risk if he/she was to participate in the study or confounds the ability to interpret data from the study

Primary outcomes:
measure: Number of Participants Contributing to the Overall Response Rate
timeFrame: After 8 months from therapy start (6 months of treatment plus 2 months from the last course to response evaluation)
Secondary outcomes:
measure: Toxicity According to CTCAE Version 4.0
timeFrame: At 44 months from treatment start.
measure: Progression Free Survival
timeFrame: Up to 32 months: from the date of first BendOfa treatment dose - induction phase - until the date of the first documentation of progressive disease or until death (whatever the cause), whichever occurs first.
measure: Overall Survival
timeFrame: At 44 months from treatment start.
Other outcomes:
Locations:
city: Ascoli
country: Italy
facility: Dipartimento Area Medica - Presidio Ospedaliero "C. e G.Mazzoni"
city: Bari
country: Italy
facility: Unità Operativa Ematologia 1 - Università degli Studi di Bari
city: Bologna
country: Italy
facility: Ist.Ematologia e Oncologia Medica L.e A. Seragnoli
city: Bolzano
country: Italy
facility: Azienda Sanitaria di Bolzano - Ospedale Centrale - Ematologia e Centro TMO
city: Cagliari
country: Italy
facility: Azienda ASL di Cagliari
city: Campobasso
country: Italy
facility: U.O.C. di Onco-Ematologia - Centro di Ricerca e Formazione ad Alta tecnologia nelle Scienze Biomediche
city: Catania
country: Italy
facility: Ospedale Ferrarotto
city: Catanzaro
country: Italy
facility: Azienda Ospedaliera Pugliese Ciaccio
city: Cosenza
country: Italy
facility: U.O. Ematologia - P.O. Annunziata - A.O. di Cosenza
city: Ferrara
country: Italy
facility: Sez.Ematologia e Dip. scienze Biomediche Arcispedale S. Anna
city: Firenze
country: Italy
facility: Policlinico di Careggi, Università delgi studi di Firenze
city: Genova
country: Italy
facility: Clinica Ematologica - Università degli Studi
city: Lecce
country: Italy
facility: ASL Le1 P.O. Vito Fazzi - U.O. di Ematologia
city: Messina
country: Italy
facility: Azienda Ospedaliera Universitaria - Policlinico G. Martino Dipartimento di Medicina Interna - U.O. Messina
city: Messina
country: Italy
facility: Messina Divisione di Ematologia - Azienda Ospedaliera Ospedali Riuniti "Papardo Piemonte"
city: Milano
country: Italy
facility: Centro Trapianti di Midollo - IRCCS Ospedale Maggiore Policlinico
city: Milano
country: Italy
facility: Unità Trapianto di Midollo Ist. Nazionale Tumori
city: Modena
country: Italy
facility: Sez. di medicina Interna Oncologia ed Ematologia
city: Napoli
country: Italy
facility: Ospedale San Gennaro - ASL Napoli 1
city: Pescara
country: Italy
facility: U.O. Ematologia Clinica - Azienda USL di Pescara
city: Reggio Calabria
country: Italy
facility: Dipartimento Emato-Oncologia A.O. "Bianchi-Melacrino-Morelli"
city: Roma
country: Italy
facility: S.C. di Ematologia e Trapianti - I.F.O. Istituto Nazionale Tumori Regina Elena
city: Roma
country: Italy
facility: Università degli Studi "Sapienza" - Dip Biotecnologie Cellulari ed Ematologia - Divisione di Ematologia
city: Roma
country: Italy
facility: Università degli Studi - Policlinico di Tor Vergata
city: Roma
country: Italy
facility: Università degli studi di Roma La Cattolica
city: Rome
country: Italy
facility: Ospedale S.Eugenio
city: San Giovanni Rotondo
country: Italy
facility: Ospedale Casa Sollievo della sofferenza
city: Siena
country: Italy
facility: U.O. Ematologia, Azienda Ospedaliera Universitaria Senese
city: Terni
country: Italy
facility: SS.C. di Oncoematologia - Dipartimento di Medicina Clinica e Sperimentale - Azienda Ospedaliera - S. Maria Di Terni
city: Torino
country: Italy
facility: Div. di Ematologia "Molinette" Osp. Maggiore S. G. Battista
city: Udine
country: Italy
facility: Clinica Ematologica - Policlinico Universitario
city: Verona
country: Italy
facility: Policlinico G.B. Rossi
Study officials:
affiliation: Direzione Scientifica - Fondazione IRCCS Ospedale Maggiore Policlinico, Mangiagalli e Regina Elena
name: Agostino Cortelezzi, Pr.
role: PRINCIPAL_INVESTIGATOR
References: