ClinicalTrials.gg
Active, not recruitingNCT03474744Updated May 6, 2026

Copanlisib and Rituximab in Marginal Zone Lymphoma Patients

A Phase 2 interventional study of Copanlisib and Rituximab in Marginal Zone Lymphoma, sponsored by Christian Buske. Active, not recruiting at 18 sites in 2 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-05-06.

Sponsored by Christian Buske · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
36
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 103 studies testing rituximab in Lymphoma, B-Cell, Marginal Zone — 11 open to participants now, 21 under way, 3 of them phase 3. Rituximab · Lymphoma, B-Cell, Marginal Zone.

Planned enrollment
48th of 99
36 · median 36
Started
2019
with 2 others
Phase 2
60 of 103
7 open now
Primary completion
2027-12
later than 9 of 20 live
Registered
84th of 103
by date

Among the 103 studies testing rituximab in Lymphoma, B-Cell, Marginal Zone, this one is the 48th largest by planned enrollment of the 99 interventional ones that give a count, is one of 3 that started in 2019, is one of 60 in phase 2, reaches primary completion later than 9 of the 20 other live ones, and was the 84th registered.

Lymphoma, B-Cell, Marginal Zone

875 studies on the registry are indexed under Lymphoma, B-Cell, Marginal Zone; 111 are open to participants now.

Browse Lymphoma, B-Cell, Marginal Zone studies →

Open to participants now

11 of the 103 studies testing rituximab in Lymphoma, B-Cell, Marginal Zone are open now, in 12 countries. Recruiting first, the newest first:

6 more — sign in →

By country, each count listing its studies:

All 11 open studies →

About rituximab

Rituximab: first FDA approval 1997 (RITUXAN), first EMA approval 1998. What it is approved for, and how studies give it, is on its page →

Who these studies take

Of the 92 Lymphoma, B-Cell, Marginal Zone studies recruiting now, 77 (84%) set no upper age limit and 7 (8%) stop at 75 or younger; 9 take children under 18; 3 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

Was this useful?
Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 103 studies testing rituximab in Lymphoma, B-Cell, Marginal Zone, or all of them as a file.
02

Study summary

For marginal zone lymphoma (MZL) Rituximab in combination with conventional chemotherapy is widely used for those patients who fail local therapy or do not qualify for such. Depending on the MZL subtype Rituximab/chemotherapy is able to induce in part long remissions, but do not prevent relapse later on. In addition, chemotherapy associated toxicity is often problematic in MZL patients, who are mostly of advanced age. Thus, chemotherapy - free approaches are highly attractive for this patient group. Rituximab single agent is a widely used chemotherapy - free approach in MZL, but was significantly inferior compared to Rituximab/chlorambucil in a large randomized prospective clinical trial in treatment naïve MZL with a CR rate of 56 % vs. 80%, respectively (P\<0.001). Thus, it is the major aim to develop chemotherapy - free approaches for MZL, which approach efficacy of Rituximab/chemotherapy combinations, but avoid chemotherapy associated toxicities. This in particular important in MZL as many physicians are reluctant to treat these often elderly patients with more intense treatments and prefer single agent therapies in these very often well and long responding lymphoma subtype. The PI3K inhibitor Copanlisib has shown high clinical activity in indolent B - cell lymphomas among them MZL. Based on these observations it is the aim of this study to test the toxicity and efficacy of Copanlisib in combination with the anti-CD20 antibody Rituximab in patients with newly diagnosed or relapsed MZL in need of treatment, who are not eligible or failed local therapy, following the assumption that this novel chemotherapy - free combination is significantly more effective than Rituximab single agent therapy and at least as efficient as Rituximab/chemotherapy, but avoids chemotherapy - related toxicity.

Read the detailed description

For marginal zone lymphoma (MZL) Rituximab in combination with conventional chemotherapy is widely used for those patients who fail local therapy or do not qualify for such. Depending on the MZL subtype Rituximab/chemotherapy is able to induce in part long remissions, but do not prevent relapse later on. In addition, chemotherapy associated toxicity is often problematic in MZL patients, who are mostly of advanced age. Thus, chemotherapy - free approaches are highly attractive for this patient group. Rituximab single agent is a widely used chemotherapy - free approach in MZL, but was significantly inferior compared to Rituximab/chlorambucil in a large randomized prospective clinical trial in treatment naïve MZL with a CR rate of 56 % vs. 80%, respectively (P\<0.001). Thus, it is the major aim to develop chemotherapy - free approaches for MZL, which approach efficacy of Rituximab/chemotherapy combinations, but avoid chemotherapy associated toxicities. This in particular important in MZL as many physicians are reluctant to treat these often elderly patients with more intense treatments and prefer single agent therapies in these very often well and long responding lymphoma subtype. The PI3K inhibitor Copanlisib has shown high clinical activity in indolent B - cell lymphomas among them MZL. Based on these observations it is the aim of this study to test the toxicity and efficacy of Copanlisib in combination with the anti-CD20 antibody Rituximab in patients with newly diagnosed or relapsed MZL in need of treatment, who are not eligible or failed local therapy, following the assumption that this novel chemotherapy - free combination is significantly more effective than Rituximab single agent therapy and at least as efficient as Rituximab/chemotherapy, but avoids chemotherapy - related toxicity.

The objective of the trial is to test the efficacy and toxicity of the treatment of Copanlisib/Rituximab in patients with MZL in need of treatment, who have failed or are not eligible for local therapy or relapsed after local or systemic therapy. For efficacy the rate of complete remissions (according to the GELA criteria for gastric MALT or to the Cheson 2007 criteria for non-gastric extranodal, nodal and splenic MZL) after induction therapy will be primarily analysed. For toxicity treatment associated adverse events, quality of life and cumulative incidence of secondary malignancies will be documented.

03

Conditions studied

  • Marginal Zone Lymphoma

Keywords

  • Copanlisib
  • Rituximab
  • Oncology
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Inclusion Criteria:

Patients must meet all of the following inclusion criteria to be eligible for participation in this study:

  • Confirmed CD20 positive MALT Lymphoma de novo or following or being not eligible for local therapy (including surgery, radiotherapy) and antibiotics for H. pylori-positive gastric lymphoma arisen at any extranodal site OR
  • Confirmed CD20 positive de novo or relapsed splenic MZL following or not being eligible for local therapy (including surgery and antiviral therapy for Virus) with symptomatic disease OR
  • Confirmed CD20 positive de novo or relapsed nodal MZL Tissue diagnostic procedures must be performed within 12 months prior to study entry and have to include diagnostics by a reference pathology center. material from an excisional or core biopsy must be submitted for retrospective central confirmation. Tissue samples dated > 12 months prior to can be accepted only if tissue material is available for retrospective confirmation, if there is no clinical indication for transformation of disease, and if the request for additional biopsy would be unethical treatment of the patient.

In patients with splenic MZL without splenic tissue available for histologic review, the diagnosis may be confirmed by the presence of splenomegaly and typical morphologic and immunophenotypic findings in the blood and bone marrow. Bone marrow (acceptable up to 12 weeks before start of treatment) must be submitted for retrospective central confirmation.

- Patients in need of treatment: For patients with symptomatic splenic, nodal, or non-gastric extranodal MZL disease that is de novo or has relapsed following local therapy (i.e., surgery or radiotherapy) and requires therapy, as assessed by the investigator.

For nodal MZL and extragastric MALT lymphoma:

- At least one bi-dimensionally (≥ 1.5 cm in its largest dimension by CT scan or MRI). Please refer to Appendix C.

For SMZL:

For splenic MZL, an enlarged spleen on CT scan and lymphoma cell infiltration has to be seen in bone marrow and/or peripheral blood. Please refer also to Appendix E.

At least one of the following criteria must be met:

  • Bulky progressive or painful splenomegaly
  • one of the following symptomatic/progressive cytopenias: \< 10 g/dL, or Plat \< 80.000 /µL, or neutropenia \< 1000/µL, whatever the reason ( or hypersplenism or bone marrow infiltration)
  • SMZL with concomitant hepatitis C infection which has not responded to or has relapsed after Interferon and/or Ribavirin and/or direct antiviral agents (patients positive for HCV antibody are eligible only if PCR is negative for HCV RNA).
  • splenectomised patients with rapidly raising lymphocyte counts, development of lymphadenopathy or involvement of extranodal sites if not being eligible for local therapy.

For gastric MALT lymphoma:

For gastric MALT lymphoma, the clinical evidence of the MZL as seen by gastroendoscopy is sufficient. There is no need to show a measurable lesion by CT scan or MRI. Please refer to Appendix D.

Inclusion is possible for patients with:

  • H. pylori-negative disease de novo or following or being not eligible for local therapy (i.e., surgery, radiotherapy or antibiotics) or after systemic therapy.
  • H. pylori-positive disease that has remained stable, progressed, or relapsed following antibiotic therapy.

Others:

  • Age >= 18 years
  • >3 months.
  • Baseline Count >= 50 x 109/L (if not due to BM infiltration by the lymphoma), >= 0.75 x 109/L.
  • Meet the following pretreatment laboratory criteria at the Screening visit conducted within 28 days of study enrollment (unless due to underlying lymphoma):

    • ASAT (): \<= 3 times the upper limit of institutional laboratory normal value
    • ALAT (SGPT): \<= 3 times the upper limit of institutional laboratory normal value
    • Total : \<= 2 mg/dL or 2 times the upper limit of institutional laboratory normal value, unless clearly related to the disease (except if due to Gilbert's syndrome)
  • ≥ 40 mL/min/1.73 m²
  • Negative antibody
  • Positive test results for chronic infection (defined as positive HBsAg serology): patients with occult or prior HBV infection (defined as negative HBsAg and positive total HBcAb) may be included if HBV DNA is undetectable, provided that they are willing to undergo monthly DNA testing. Patients who have protective titers of HBsAb after vaccination or prior but cured hepatitis B are eligible.
  • Positive test results for hepatitis C (hepatitis C virus [HCV] antibody serology testing): patients positive for HCV antibody are eligible only if PCR is negative for HCV RNA.
  • Pregnancy β-HCG negative. For women of only (i.e. fertile, following menarche and until becoming unless permanently sterile. Permanent sterilisation methods include hysterectomy, bilateral salpingectomy and bilateral oophorectomy); serum or urine β-HCG must be negative during screening and at study enrolment visit
  • Premenopausal fertile females must agree to use a highly effective method of for the duration of the therapy up to 12 months after end of therapy. A highly effective method of birth control is defined as those which result in a low failure rate (i.e. less than 1% per year) when used consistently and correctly such as combined (estrogen and progestogen containing) hormonal contraception associated with inhibition of ovulation (oral, intravaginal or transdermal), progestogen-only hormonal contraception associated with inhibition of ovulation (oral, injectable or implantable), intrauterine device (IUD), intrauterine hormone-releasing system ( IUS), bilateral tubal occlusion, vasectomised partner or sexual abstinence. Contraception and pregnancy testing are required according the CTFG recommendations (http://www.hma.eu/fileadmin/dateien/Human_Medicines/01-About_HMA/Working_Groups/CTFG/2014_09_HMA_CTFG_Contraception.pdf).
  • Men must agree not to father a child for the duration of therapy and 6 months after (use of a condom) and must agree to advice a female partner to use a highly effective method of birth control.
  • Willingness and ability to comply with scheduled visits, drug administration plan, imaging studies, laboratory tests, other study procedures, and study restrictions.
  • Evidence of a personally signed informed consent indicating that the subject is aware of the neoplastic nature of the disease and has been informed of the procedures to be followed, the experimental nature of the therapy, alternatives, potential benefits, possible side effects, potential risks and discomforts, and other pertinent aspects of study participation.

Exclusion Criteria:

The presence of any of the following will exclude a subject from enrolment:

  • performance status ≥ 2
  • History of a non-lymphoid except for the following: adequately treated local basal cell or squamous cell carcinoma of the skin, cervical carcinoma in situ, superficial bladder cancer, asymptomatic prostate cancer without known disease and with no requirement for therapy or requiring only hormonal therapy and with normal prostate specific antigen for ≥1 year prior to study enrollment visit, other Stage 1 or 2 cancer treated with a curative intent and currently in complete remission, for ≥3 years.
  • Central nervous system lymphoma, lymphoma, or histologic evidence of transformation to a high-grade or diffuse large B-cell lymphoma.
  • Ongoing therapy including (exception \< 4 weeks administered at a dose equivalent to ≤ 40 mg/day prednisone is allowed)
  • Evidence of ongoing systemic bacterial, fungal, or viral infection at the time of study enrolment visit
  • Ongoing drug-induced liver injury, chronic active hepatitis B (HBV), alcoholic liver disease, non-alcoholic steatohepatitis, primary biliary cholangitis, extrahepatic obstruction caused by cholelithiasis, cirrhosis of the liver, or portal hypertension.
  • Ongoing alcohol or drug addiction
  • Treatment with any other agent within 30 days or within 5 x the half-life (t1/2) of the investigational product, whichever is longer, or participating in another trial within 30 days prior to entering this study
  • Breastfeeding or pregnancy
  • Prior treatment with Copanlisib
  • Congestive heart failure > (NYHA) class 2
  • Unstable angina (angina symptoms at rest), new-onset angina (begun within the last 3 months).
  • Myocardial infarction less than 6 months before start of test drug
  • Uncontrolled arterial hypertension despite optimal medical management
  • >8.5%
  • Prior or ongoing illness, medical condition, surgical history, physical finding, (ECG) finding, or laboratory abnormality that, in the investigator's opinion, could adversely affect the safety of the subject or impair the assessment of study results.
  • History of anaphylaxis in association with previous administration of monoclonal antibodies.
  • Vaccination with a within 28 days prior to start of therapy
  • Arterial or venous thrombotic or embolic events such as cerebrovascular accident (including ), deep vein thrombosis or pulmonary embolism within 3 months before the start of study medication
  • Non-healing wound, ulcer, or bone fracture
  • History or concurrent interstitial lung disease of any severity and/or severely impaired lung function (as judged by the investigator).
Terms in these criteria, in plain language(31)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Leptomeningeal disease

Cancer that has spread to the leptomeninges, the thin layers covering the brain and spinal cord, and the fluid between them. It is not the same as brain metastases.

Criteria often treat it separately, and many studies leave it out even where treated brain metastases are allowed.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

HbA1c

A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

Live vaccines

Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.

TIA (transient ischaemic attack)

A “mini-stroke”: temporary stroke-like symptoms caused by reduced blood flow to part of the brain, spinal cord or eye, without signs of a new stroke on a scan.

Stroke symptoms need emergency care at once, even if they go away.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
36 participants (estimated)

Study arms

  • Experimental
    Experimental Arm

    Induction Phase: Cycle 1-6 (28 days cycle): Copanlisib: 60 mg i.v. fixed dose days 1, 8, 15. Rituximab: 375 mg/m2 day 1 i.v. Maintenance: Start 2 months after start of the last induction cycle for patients at least achieving a stable response after induction. Copanlisib: 60 mg i.v. fixed dose day 1 and day 15 every 4 weeks for a maximum of 12 cycles or until progression or study drug-related intolerable toxicity (month 2 to month 13 after end of induction). Rituximab: 375 mg/m2 i.v. day 1 every 8 weeks for a maximum of 12 infusions or until progression or study drug-related intolerable toxicity (month 2 to month 24 after end of induction)

    Drug: Copanlisib · Drug: Rituximab

Interventions

  • Solution for IV infusion

    Also known as: Aliqopa

  • Solution for IV infusion

    Also known as: Truxima

06

What researchers measure

Primary outcomes

  1. Complete Response

    Primary endpoint is the complete response (CR rate (CRR) determined 12 months after start of induction therapy). Patients who progress before 12 months after start of treatment will be treated as CR='NO' and will be included in the calculation of the primary endpoint. No primary endpoint will be determined for patients who withdraw.

    Time frame: 12 months

Secondary outcomes

  1. Response rate

    The response rates (complete response (CR), partial response (PR)) and overall response rate (CR or PR) are evaluated 4 weeks after the end of induction treatment and 12 months after start of treatment.

    Time frame: 12 months

  2. Best response

    Best response is determined in the time interval from the start of induction therapy to end of follow-up.

    Time frame: 8.5 years

  3. Time to best response

    Time to best response is defined as the time from the start of induction to best response the patient achieves (CR, PR).

    Time frame: 8.5 years

  4. Time to first response

    Time to first response is defined as the time from the start of induction to first response (CR, PR).

    Time frame: 12 months

  5. Progressioin free survival (PFS)

    Progression free survival (PFS) is defined as the time from registration to the first occurrence of progression or relapse as assessed by the investigator, or death from any cause. PFS for patients without disease progression, relapse, or death will be censored at the time of the last tumor assessment.

    Time frame: 12 months

  6. Time to Treatment failure (TTF)

    Time to treatment failure (TTF) is defined as the time of registration to discontinuation of therapy for any reason including death from any cause, progression, toxicity or add-on of new anti-cancer therapy. Patients alive without treatment failure are censored at the latest tumor assessment date.

    Time frame: 8.5 years

  7. Duration of Response (DR)

    Duration of response as defined as the period from the first response (at least PR) to treatment until evidence of disease progression, relapse or death of any cause. Patients alive without progression and relapse will be censored at the latest tumor assessment date or the stopping date.

    Time frame: 8.5 years

  8. Cause specific survival (CSS)

    Cause specific survival is defined as the period from the induction registration to death from lymphoma or lymphoma related cause; death unrelated to MZL is considered as a competing event.

    Time frame: 8.5 years

  9. Overall survival (OS)

    Overall survival is defined as the period from the induction registration to death from any cause. Patients who have not died until the time of the analysis will be censored at their last contact date.

    Time frame: 8.5 years

  10. Quality of life during induction and maintenance therapy

    Quality of life will be measured by the FACTLym before start of treatment, during induction and maintenance.

    Time frame: 8.5 years

07

Study locations

18 sites
  • Med. Uni Wien AKH, Klinische Abteilung für Onkologie, Innere Medizin I
    Vienna, 1190, Austria
  • St. Josef-Hospital, Medizinische Klinik I
    Bochum, 44791, Germany
  • Johanniter GmbH, Johanniter-Krankenhaus
    Bonn, 53113, Germany
  • ÜBAG MVZ Dr. Vehling-Kaiser GmbH Dingolfing
    Dingolfing, 84113, Germany
  • Kath. Karl-Leisner-Klinikum gGmbH, Betriebsstätte Wilhelm-Anton-Hospital
    Goch, 47574, Germany
  • MVZ Goslar, MVZ Onkologische Kooperation Harz
    Goslar, 38642, Germany
  • Universitätsklinikum Halle, Klinik und Poliklinik für Innere Medizin
    Halle, 06120, Germany
  • Rotes Kreuz Krankenhaus, Klinik für Interdisziplinäre Onkologie
    Kassel, 34121, Germany
  • ÜBAG MVZ Dr. Vehling-Kaiser GmbH
    Landshut, 84036, Germany
  • Gemeinschaftspraxis, Fachärzte für Innere Medizin
    Mannheim, 68161, Germany
  • Universitätsmedizin Mannheim, III. Medizinische Klinik
    Mannheim, 68167, Germany
  • Kliniken Ostalb Stauferklinikum Schwäbisch Gmünd, Zentrum für Innere Medizin
    Mutlangen, 73557, Germany
  • Klinikum der Universität München, Medizinische Klinik und Poliklinik III
    München, 83177, Germany
  • Sana Klinikum Offenbach GmbH
    Offenbach, 63069, Germany
  • Universitätsklinik PIUS Hospital, Innere Medizin
    Oldenburg, 26121, Germany
  • Elblandkliniken Stiftung & Co. KG, Innere Medizin II
    Riesa, 01589, Germany
  • Universitätsmedizin Rostock
    Rostock, 18051, Germany
  • University Hospital Ulm
    Ulm, 89081, Germany
08

References and documents

Publications

  • Sharp J, Shana'ah AY, Voorhees TJ, Bond DA, Sawalha Y, Sigmund A, Hanel W, Sehgal L, Alinari L, Baiocchi R, Maddocks K, Jones D, Christian B, Epperla N. Resistance Mechanism for Zanubrutinib in Marginal Zone Lymphoma. J Natl Compr Canc Netw. 2025 Jun 23;23(7):e257045. doi: 10.6004/jnccn.2025.7045. PubMed 40550489 ↗
  • Grunenberg A, Kaiser LM, Woelfle S, Schmelzle B, Viardot A, Moller P, Barth TFE, Muche R, Dreyhaupt J, Raderer M, Kiesewetter B, Buske C. A phase II study of the PI3K inhibitor copanlisib in combination with the anti-CD20 monoclonal antibody rituximab for patients with marginal zone lymphoma: treatment rationale and protocol design of the COUP-1 trial. BMC Cancer. 2021 Jun 29;21(1):749. doi: 10.1186/s12885-021-08464-6. PubMed 34187401 ↗
09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Dec 2019 (actual). Primary completion is estimated for Dec 2027, 96 months after the start.

Of 97 non-industry phase 2 interventional studies under Lymphoma, B-Cell, Marginal Zone, half reached primary completion within 73 months of starting (the median), counting those still running; a quarter within 42 and three quarters within 117. This study's planned 96 months is above that.

Counting every sponsor, half of 113 studies reached it within 69 months; a quarter within 38 and three quarters within 110.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 28, 2018
First posted
Mar 23, 2018
StartActual
Dec 15, 2019
Primary completionEst.
Dec 30, 2027
CompletionEst.
Dec 31, 2027
Last update
May 6, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 6, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03474744
Lead sponsor
Christian Buske
Collaborators
University of Ulm, Optimapharm, X-act Cologne Clinical Research GmbH, Zentrum für Klinische Studien Ulm, Celltrion Healthcare Co., LTD, Bayer
Responsible party
Christian Buske (Prof. Dr. med., University of Ulm) — Sponsor-investigator
First posted
Mar 23, 2018
Start date
Dec 15, 2019
Primary completion
Dec 30, 2027 (estimated)
Completion
Dec 31, 2027 (estimated)
Last update
May 6, 2026

Study contacts

Christian Buske, MD
principal investigator · University Hospital of Ulm

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Apr 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drugs tested here: Copanlisib · Rituximab

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