Testing the Combination of the Anti-cancer Drugs Copanlisib, Olaparib, and MEDI4736 (Durvalumab) in Patients With Advanced Solid Tumors With Selected Mutations

Study Overview
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Brief Summary
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This phase Ib trial studies side effects and best dose of copanlisib and olaparib when given together with durvalumab, and how well they work in treating patients with solid tumors that has spread from where it first started (primary site) to other places in the body (metastatic) or cannot be removed by surgery (unresectable). Copanlisib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. PARPs are proteins that help repair DNA mutations. PARP inhibitors, such as olaparib, can keep PARP from working, so tumor cells can't repair themselves, and they may stop growing. Immunotherapy with monoclonal antibodies, such as durvalumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving combinations of copanlisib and olaparib or copanlisib, olaparib, and durvalumab may work better in treating patients with solid tumors compared to usual treatments such as surgery, radiation, or other chemotherapy drugs.

Detailed Description
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PRIMARY OBJECTIVE: I. To evaluate the safety and establish the recommended phase 2 dose (RP2D) of the doublet combination of copanlisib and olaparib and of the triplet combination of copanlisib, olaparib and MEDI4736 (durvalumab) in patients with molecularly-selected solid tumors. SECONDARY OBJECTIVES: I. To observe and record anti-tumor activity of the doublet combination of copanlisib and olaparib, and of the triplet combination of copanlisib, olaparib and MEDI4736 (durvalumab) in patients with molecularly-selected advanced solid tumors, as measured by objective response rate (ORR) (complete response [CR] + partial response [PR]). Although the clinical benefit of the doublet and triplet combination of these drugs has not yet been established, the intent of offering this treatment is to provide a possible therapeutic benefit, and thus the patient will be carefully monitored for tumor response and symptom relief in addition to safety and tolerability. II. To assess overall duration of response (DoR), progression free survival (PFS) and overall survival (OS). III. To assess the pharmacokinetic (PK) profiles of these combinations, and explore exposure-response relationships. IV. To correlate molecular alterations with OR (CR+PR). OUTLINE: This is a dose-escalation study of copanlisib and olaparib. Patients receive copanlisib hydrochloride intravenously (IV) over 1 hour on days 1 and 15 or days 1, 8, and 15 depending on dose level and olaparib orally (PO) twice daily (BID) on days 1-28 of each cycle. Beginning cycle 2, patients receive durvalumab IV over 1 hour on day 1 of each cycle. Cycles repeat every 28 days for 24 months in the absence of disease progression or unacceptable toxicity. Patients also undergo collection of blood samples at baseline within 7 days of cycle 1 day 1 (C1D1), days 8 and 15 of cycle 1 and day 15 of subsequent cycles, at time of restaging, and end of treatment/progression. Patients undergo x-ray, computed tomography (CT), and magnetic resonance imaging (MRI) at the end of cycle 2 and then every 8 weeks. Patients also undergo an echocardiography (ECHO) during pre-study within 28 days of C1D1 and tumor biopsy at baseline within 7 days of C1D1 and day 15 of cycle 1 or 2, and may undergo an optional biopsy at end of treatment/progression. After completion of study treatment, patients are followed up at 30 days and then every 3-6 months for up to 2 years.

Official Title
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A Phase 1b Biomarker-Driven Combination Trial of Copanlisib, Olaparib, and Durvalumab (MEDI4736) in Patients With Advanced Solid Tumors

Conditions
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Advanced Malignant Solid Neoplasm, Metastatic Malignant Solid Neoplasm, Unresectable Malignant Solid Neoplasm

Intervention / Treatment
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* Procedure: Biopsy
* Procedure: Biospecimen Collection
* Procedure: Computed Tomography
* Drug: Copanlisib Hydrochloride
* Biological: Durvalumab
* Procedure: Echocardiography
* Procedure: Magnetic Resonance Imaging
* Drug: Olaparib
* Procedure: X-Ray Imaging


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: ELIGIBILITY CRITERIA FOR ENROLLMENT INTO STEPS 1, 2, AND 3 Patients must have germline or somatic mutations in DDR genes: BARD1, BRCA1, BRCA2, BRIP1, FANCA, NBN, PALB2, RAD51, RAD51B, RAD51C, RAD51D; or actionable mutations in the PTEN gene, or hotspot mutations in the PIK3CA gene (E542, E545 or H1047 are accepted). Local testing in Clinical Laboratory Improvement Act (CLIA)-certified laboratory will be accepted. Only mutations that have been recognized as actionable by the MD Anderson Precision Oncology Decision Support (PODS) team will be accepted Patients must have histologically confirmed malignancy that is metastatic or unresectable and for which standard curative or palliative measures do not exist or are no longer effective Patients must have measurable disease by Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 Patients must be >= 3 weeks beyond treatment with any chemotherapy or >= 4 weeks beyond treatment with other investigational therapy to include hormonal, biological, or targeted agents; or at least 5 half-lives from hormonal, biological, or targeted agents, whichever is shorter at the time of treatment initiation Age >= 18 years. Because no dosing or adverse event (AE) data are currently available on the use of copanlisib in combination with olaparib +/- durvalumab (MEDI4736) in patients < 18 years of age, children are excluded from this study, but will be eligible for future pediatric trials Patients with a mutation within both the DDR and PTEN/PIK3CA pathways will be assessed by the genomics Precision Oncology Decision Support group at MD Anderson, and the patient will be allocated to the PI3K or DDR expansion group deemed to be the main driver. If the actionability between the groups is deemed to be equivocal, then the patient will be allocated to the expansion cohort with fewer patients Eastern Cooperative Oncology Group (ECOG) performance status (PS) =< 1 (Karnofsky >= 60%) Hemoglobin >= 10 g/dL with no blood transfusion in the past 28 days Leukocytes >= 3,000/mcL Lipase =< 1.5 x upper limit of normal (ULN) Absolute neutrophil count >= 1,500/mcL Platelets >= 140,000/mcL Total bilirubin =< 1.5 x institutional ULN Serum bilirubin =< 1.5 x institutional ULN Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase [SGOT])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) =< 2.5 x institutional ULN, unless liver metastases are present in which case they must be =< 5 x ULN Activated partial thrombin time =< 1.5 x ULN unless subject is receiving anticoagulant therapy as long as prothrombin time (PT) or partial thromboplastin time (PTT) is within the therapeutic range of intended use of anticoagulants International normalized ratio =< 1.5 x ULN Glomerular filtration rate (GFR) >= 51 mL/min, based on a 24-hour urine test for creatinine clearance or estimated using the Cockcroft-Gault equation Left ventricular ejection fraction (LVEF) >= 50% Patients who are therapeutically treated with an agent such as warfarin or heparin will be allowed to participate provided that their medication dose and international normalized ratio (INR)/PTT is stable Prophylactic antiemetics may be administered according to standard practice. The routine use of standard antiemetics, including 5-hydroxytryptamine type 3 (5-HT3) blockers, such as granisetron, ondansetron, or an equivalent agent, is allowed as needed. The use of corticosteroids as antiemetics prior to copanlisib administration will not be allowed Postmenopausal or evidence of non-childbearing status, a negative urine or serum pregnancy test within 28 days of study treatment and confirmed prior to treatment on day 1. Postmenopausal is defined as: Amenorrheic for 1 year or more following cessation of exogenous hormonal treatments Luteinizing hormone (LH) and follicle stimulating hormone (FSH) levels in the postmenopausal range for women under 50 Radiation-induced oophorectomy with last menses > 1 year ago Chemotherapy-induced menopause with > 1 year interval since last menses Surgical sterilization (bilateral oophorectomy or hysterectomy) Women of child-bearing potential MUST have a negative serum or urine human chorionic gonadotropin (HCG) test unless prior tubal ligation (>= 1 year before screening), total hysterectomy or menopause (defined as 12 consecutive months of amenorrhea). Patients should not become pregnant or breastfeed while on this study Patients and their partners, if sexually active and of childbearing potential, must agree to the use of two highly effective forms of contraception in combination throughout the period of taking study treatment and for 6 months after last dose of study drug(s) to prevent pregnancy in the study patient or partner. Male patients should avoid donating sperm for 3 months following the last dose of olaparib Human immunodeficiency virus (HIV)-infected (HIV 1/2 antibody-positive; HIV testing pre-study not required) patients may participate IF they meet all the following eligibility requirements: They must be on an anti-retroviral regimen with evidence of at least two undetectable viral loads within the past 6 months on this same regimen; the most recent undetectable viral load must be within the past 12 weeks They must have a CD4 count >= 250 cells/mcL over the past 6 months on this same anti-retroviral regimen and must not have had a CD4 count < 200 cells/ mcL over the past 2 years, unless it was deemed related to the cancer and/or chemotherapy-induced bone marrow suppression For patients who have received chemotherapy in the past 6 months, a CD4 count < 250 cells/mcL during chemotherapy is permitted as long as viral loads were undetectable during this same chemotherapy They must have an undetectable viral load and a CD4 count >= 250 cells/mcL within 7 days of enrollment They must not be currently receiving prophylactic therapy for an opportunistic infection and must not have had an opportunistic infection within the past 6 months Ability to understand and the willingness to sign a written informed consent document. Patients with impaired decision-making capacity (IDMC) must have a legally authorized representative or caregiver who gives such consent Patient is willing and able to comply with the protocol for the duration of the study, including undergoing treatment and scheduled visits and examinations Patients with a tumor that is readily accessible for biopsy ELIGIBILITY CRITERIA FOR ENROLLMENT INTO STEP 2 AND 3 ONLY Body weight > 30 kg Life expectancy >= 16 weeks Exclusion Criteria: EXCLUSION CRITERIA FOR STEPS 1, 2, AND 3 Persistent toxicities (> Common Terminology Criteria for Adverse Events [CTCAE] grade 2) caused by previous cancer therapy, excluding alopecia Patients receiving any systemic chemotherapy or radiotherapy (except for palliative reasons) within 3 weeks prior to study treatment Major surgery within 2 weeks of starting study treatment and patients must have recovered from any effects of any major surgery Patients who are receiving any other investigational agents Other malignancy unless curatively treated with no evidence of disease for >= 5 years except: adequately treated non-melanoma skin cancer, curatively treated in situ cancer of the cervix, ductal carcinoma in situ (DCIS), or stage 1, grade 1 endometrial carcinoma. A patient with a history of localized triple negative breast cancer may be eligible, provided the patient completed the adjuvant chemotherapy > 3 years prior to registration, and the patient remains free of recurrent or metastatic disease Patients with myelodysplastic syndrome/acute myeloid leukemia (MDS/AML) or with bone marrow findings consistent with MDS/AML History of allergic reactions attributed to compounds of similar chemical or biologic composition to olaparib, copanlisib, PI3K inhibitors or MEDI4736 (durvalumab) or any of the excipients of any study products Concomitant use of strong CYP3A inhibitors and inducers Olaparib: concomitant use of known strong CYP3A inhibitors (e.g., itraconazole, telithromycin, clarithromycin, protease inhibitors boosted with ritonavir or cobicistat, indinavir, saquinavir, nelfinavir, boceprevir, telaprevir) or moderate CYP3A inhibitors (e.g., ciprofloxacin, erythromycin, diltiazem, fluconazole, verapamil). The required washout period for strong or moderate CYP3A inhibitors prior to starting olaparib is 2 weeks Because the lists of these agents are constantly changing, it is important to regularly consult a frequently-updated medical reference. As part of the enrollment/informed consent procedures, the patient will be counseled on the risk of interactions with other agents, and what to do if new medications need to be prescribed or if the patient is considering a new over-the-counter medicine or herbal product Concomitant use of known strong CYP3A inducers (e.g., phenobarbital, enzalutamide, phenytoin, rifampicin, rifabutin, rifapentine, carbamazepine, nevirapine and St John's Wort) or moderate CYP3A inducers (e.g., bosentan, efavirenz, modafinil). The required washout period for strong or moderate CYP3A inducers prior to starting olaparib is 5 weeks for enzalutamide or phenobarbital and 3 weeks for other agents Copanlisib: copanlisib is primarily metabolized by CYP3A4. Therefore, the concomitant use of strong inhibitors of CYP3A4 (e.g., ketoconazole, itraconazole, clarithromycin, ritonavir, indinavir, nelfinavir and saquinavir), and strong inducers of CYP3A4 (e.g. rifampin, phenytoin, carbamazepine, phenobarbital, St. John's Wort) are not permitted from 14 days prior to enrollment until the end of the study Other medications that are prohibited while on copanlisib treatment: Herbal medications/preparations (except for vitamins) Anti-arrhythmic therapy other than beta blockers or digoxin Because the lists of these agents are constantly changing, it is important to regularly consult a frequently-updated medical reference for a list of drugs to avoid or minimize use of. As part of the enrollment/informed consent procedures, the patient will be counseled on the risk of interactions with other agents, and what to do if new medications need to be prescribed or if the patient is considering a new over-the-counter medicine or herbal product Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, uncontrolled major seizure disorder, unstable spinal cord compression, superior vena cava syndrome, extensive interstitial bilateral lung disease on high resolution computed tomography (HRCT) scan, symptomatic congestive heart failure, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements Resting electrocardiogram (ECG) indicating uncontrolled, potentially reversible cardiac conditions, as judged by the investigator (e.g., unstable ischemia, uncontrolled symptomatic arrhythmia, congestive heart failure, QT corrected by the Fridericia formula [QTcF] prolongation of > 500 msec, electrolyte disturbances), or patients with congenital long QT syndrome Women who are breast feeding or pregnant are excluded from this study because olaparib is a poly (adenosine diphosphate-ribose) polymerase (PARP) inhibitor with the potential for teratogenic or abortifacient effects. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with olaparib, breastfeeding should be discontinued if the mother is treated with olaparib and copanlisib +/- MEDI4736 (durvalumab) Previous allogenic bone marrow transplant or double umbilical cord blood transplantation (dUCBT) Packed red blood cell or platelet transfusion in the last 28 days prior to study entry Whole blood transfusions in the last 120 days prior to study entry. Whole blood transfusions performed within 120 days of study entry may interfere with blood samples taken for exploratory analysis Patients should be excluded if they have a condition requiring systemic treatment with either corticosteroids (> 10 mg daily prednisone equivalents) or other immunosuppressive medications within 14 days of study drug administration. However, systemic corticosteroids may be indicated after starting the study drugs to treat immune-related adverse reactions. Inhaled or topical steroids and adrenal replacement doses =< 10 mg daily prednisone equivalents are permitted in the absence of active autoimmune disease Patients with non-healing wound, ulcer, or bone fracture Arterial or venous thrombotic or embolic events such as cerebrovascular accident (including transient ischemic attacks), deep vein thrombosis or pulmonary embolism within 6 months before the start of study medication Patients with active, clinically serious infections > grade 2 (CTCAE version[v] 5.0). Active infection including tuberculosis (clinical evaluation that includes clinical history, physical examination and radiographic findings, and tuberculosis [TB] testing in line with local practice), hepatitis B (known positive hepatitis B virus [HBV] surface antigen [HBsAg] result), or hepatitis C. Patients with a past or resolved HBV infection (defined as the presence of hepatitis B core antibody [anti-HBc] and absence of HBsAg) are eligible. Patients positive for hepatitis C (HCV) antibody are eligible only if polymerase chain reaction is negative for HCV ribonucleic acid (RNA). HBV/HCV screening is required 28 days prior to starting the study drug using a routine hepatitis virus lab panel Active infection requiring IV antibiotics or other uncontrolled intercurrent illness requiring hospitalization Patients unable to swallow orally administered medication and any medical condition or diagnosis that would likely impair absorption of an orally administered drug (e.g. gastrectomy, ileal bypass, chronic diarrhea, gastroparesis) Known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the trial Known active central nervous system (CNS) metastases and/or carcinomatous meningitis. Subjects with previously treated brain metastases may participate provided they are stable (without evidence of progression by imaging for at least four weeks prior to the first dose of trial treatment and any neurologic symptoms have returned to baseline), have no evidence of new or enlarging brain metastases, and are not using steroids for at least 7 days prior to trial treatment. This exception does not include carcinomatous meningitis which is excluded regardless of clinical stability New York Heart Association class III or IV heart disease History or concurrent interstitial lung disease of any severity and/or severely impaired lung function (as judged by the investigator) Uncontrolled arterial hypertension despite optimal medical management (per investigator's opinion) Patients with uncontrolled type I or II diabetes mellitus, defined as fasting blood glucose ˃ 160 mg/dL and glycosylated hemoglobin (HbA1c) ˃ 8%, are ineligible EXCLUSION STEPS 2 AND 3 ONLY Patients who have not recovered from grade >= 2 adverse events due to prior anti-cancer therapy with the exception of alopecia, vitiligo, and the laboratory values defined in the inclusion criteria Patients with grade >= 2 neuropathy will be evaluated on a case-by-case basis after consultation with the study physician Major surgical procedure (as defined by the investigator) within 28 days prior to the first dose of investigational product (IP). Note: local surgery of isolated lesions for palliative intent is acceptable Active or prior documented autoimmune or inflammatory disorders (including inflammatory bowel disease [e.g., colitis or Crohn's disease], diverticulitis [with the exception of diverticulosis], systemic lupus erythematosus, Sarcoidosis syndrome, or Wegener syndrome [granulomatosis with polyangiitis, Graves' disease, rheumatoid arthritis, hypophysitis, uveitis, etc.]). The following are exceptions to this criterion: Patients with vitiligo or alopecia Patients with hypothyroidism (e.g., following Hashimoto syndrome) stable on hormone replacement Any chronic skin condition that does not require systemic therapy Patients without active disease in the last 5 years may be included but only after consultation with the study physician Patients with celiac disease controlled by diet alone Receipt of live attenuated vaccine within 30 days prior to the first dose of IP. Note: Patients, if enrolled, should not receive live vaccine whilst receiving IP and up to 30 days after the last dose of IP Patients with unstable angina pectoris Patients who have received prior anti-PD-1, anti PD-L1 or anti CTLA-4: Must not have experienced a toxicity that led to permanent discontinuation of prior immunotherapy. All adverse events (AEs) while receiving prior immunotherapy must have completely resolved or resolved to baseline prior to screening for this study Must not have experienced a grade >= 3 immune-related AE or an immune-related neurologic or ocular AE of any grade while receiving prior immunotherapy. Note: Patients with an endocrine AE of grade =< 2 are permitted to enroll if they are stably maintained on appropriate replacement therapy and are asymptomatic Must not have required the use of additional immunosuppression other than corticosteroids for the management of an AE, not have experienced recurrence of an AE if re-challenged, and not currently require maintenance doses of > 10 mg prednisone or equivalent per day Live vaccination, including virus vaccination and yellow fever vaccination, within 6 months before start of study treatment Cytomegalovirus (CMV) infection. Patients who are known to be CMV polymerase chain reaction (PCR) positive at baseline will not be eligible

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Treatment (copanlisib hydrochloride, olaparib, and durvalumab)<br>Patients receive copanlisib hydrochloride IV over 1 hour on days 1 and 15 or days 1, 8, and 15 depending on dose level and olaparib PO BID on days 1-28 of each cycle. Beginning cycle 2, patients receive durvalumab IV over 1 hour on day 1 of each cycle. Cycles repeat every 28 days for 24 months in the absence of disease progression or unacceptable toxicity. Patients also undergo collection of blood samples at baseline within 7 days of C1D1, days 8 and 15 of cycle 1 and day 15 of subsequent cycles, at time of restaging, and end of treatment/progression. Patients undergo x-ray, CT, and MRI at the end of cycle 2 and then every 8 weeks. Patients also undergo an ECHO during pre-study within 28 days of C1D1 and tumor biopsy at baseline within 7 days of C1D1 and day 15 of cycle 1 or 2, and may undergo an optional biopsy at end of treatment/progression. | Procedure: Biopsy<br>* Undergo tumor biopsy<br>* Other names: Bx;Procedure: Biospecimen Collection<br>* Undergo collection of blood samples<br>* Other names: Specimen Collection;Procedure: Computed Tomography<br>* Undergo CT<br>* Other names: tomography;Drug: Copanlisib Hydrochloride<br>* Given IV<br>* Other names: Copanlisib Dihydrochloride;Biological: Durvalumab<br>* Given IV<br>* Other names: MEDI4736;Procedure: Echocardiography<br>* Undergo ECHO<br>* Other names: EC;Procedure: Magnetic Resonance Imaging<br>* Undergo MRI<br>* Other names: Structural MRI;Drug: Olaparib<br>* Given PO<br>* Other names: PARP Inhibitor AZD2281;Procedure: X-Ray Imaging<br>* Undergo x-ray<br>* Other names: X-Ray;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Maximum-tolerated dose (MTD) of copanlisib and olaparib | Will employ the Bayesian optimal interval design (Liu and Yuan, 2015; Yuan et al., 2016) to determine the MTD. | Up to 28 days | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Objective response rate (ORR = complete response [CR] + partial [PR]) | Anti-tumor activity of the combination of copanlisib and olaparib, and of the triplet combination of copanlisib, olaparib, and durvalumab will be measured by ORR. Will estimate ORR with 95% confidence intervals. | Up to 2 years | 
| Duration of response | Will use the Kaplan-Meier method to estimate this distribution. | From time measurement criteria are met for CR or PR until the first date that recurrent or progressive disease is objectively documented, assessed up to 2 years | 
| Progression-free survival | Will use the Kaplan-Meier method to estimate this distribution. | From start of treatment to time of progression or death, whichever occurs first, assessed up to 2 years | 
| Overall survival | Will use the Kaplan-Meier method to estimate this distribution. | Up to 2 years | 
| Immune-modulatory changes | Will assess immuno-modulatory changes of copanlisib and olaparib, and of the triplet combination of copanlisib, olaparib and durvalumab using paired t-tests or Wilcoxon signed rank tests. | Baseline up to 2 years | 
| PI3K pathway signaling marker levels | Will assess associations between marker levels (e.g. phosphorylated Akt [pAkt], pS6, p4EBP1) and response using receiver operating characteristic curve analysis, graphical analysis, and logistic regression analysis as appropriate. | Up to 2 years | 
| Single nucleotide variation profile | Will assess associations between marker levels and response using receiver operating characteristic curve analysis, graphical analysis, and logistic regression analysis as appropriate. | Up to 2 years | 
| Copy number variation profile | Will assess associations between marker levels and response using receiver operating characteristic curve analysis, graphical analysis, and logistic regression analysis as appropriate. | Up to 2 years | 
| Pharmacokinetics of copanlisib and olaparib (Step 1 doublet combination) | Will assess associations between marker levels and response using receiver operating characteristic curve analysis, graphical analysis, and logistic regression analysis as appropriate. | Cycle 1, day 8: baseline, 30 minutes (min), 55 min post start copanlisib infusion, and 1 hour (h), 3h, 5h, 7h, and 23h after end of copanlisib infusion and cycle 1, day 15: baseline, 30 min, 55 min post start copanlisib infusion | 
| Pharmacokinetics of copanlisib and olaparib- Dose level 3a (Step 1 doublet combination) | Will assess associations between marker levels and response using receiver operating characteristic curve analysis, graphical analysis, and logistic regression analysis as appropriate. | Cycle 1, day 15: baseline, 30 min, 55 min post start copanlisib infusion, and 1 h, 3h, 5h, 7h, and 23h post end of copanlisib infusion | 
| Pharmacokinetics of durvalumab (Step 2 triplet combination) | Will assess associations between marker levels and response using receiver operating characteristic curve analysis, graphical analysis, and logistic regression analysis as appropriate. | Cycle 1, day 15: baseline, 30 min, 55 min post start copanlisib infusion, and 1 h, 3h, 5h, 7h, and 23h post end of copanlisib infusion and cycles 2-5, day 1: baseline and 50 min post start durvalumab infusion |