Olaparib, Durvalumab and UV1 in Relapsed Ovarian Cancer

• Status: Not yet recruiting
• Trial end date: 2026-06-15
• Target enrollment: 0
• Participant gender: Female

Summary

This prospective, multicenter, open-label, randomized phase II maintenance study is evaluating the efficacy of UV1-olaparib-durvalumab combination as maintenance therapy after platinum combination therapy for BRCAwt patients with relapsed ovarian cancer.

• Phase: Phase 2
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: Nordic Society of Gynaecological Oncology - Clinical Trials Unit
• Collaborators: Arbeitsgemeinschaft Gynaekologische Onkologie Austria; Belgian Gynaecological Oncology Group; European Network of Gynaecological Oncological Trial Groups (ENGOT); Hellenic Cooperative Oncology Group; North Eastern German Society of Gynaecological Oncology
• Treatments: Antibodies, Monoclonal; Durvalumab; Olaparib

Criteria

Inclusion Criteria:

1. Capable of giving signed informed consent which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol.

2. Histologically diagnosed epithelial ovarian, fallopian tube or primary peritoneal cancer.

3. Radiological or histological confirmation of relapse disease ≥ 6 month after last chemotherapy

4. Known BRCAwt (non-gBRCAmut/tBRCAwt)

5. Have completed at least two lines of platinum-containing chemotherapy.

a. Subjects must have completed at least 4 cycles of the last platinum-containing chemotherapy

6. Be either:

1. PARPi naive

2. Earlier treated with PARPi and not progressed during or within 4 weeks after PARPi therapy

7. Must have, in the opinion of the investigator, CR or PR on the post-treatment scan and no evidence of rising CA-125 level, following completion of the last chemotherapy course.

8. Must be included in the study within 10 weeks of completion of the final dose of platinum-containing chemotherapy.

9. Age ≥18 years

10. Body weight >30 kg

11. Eastern Cooperative Oncology Group (ECOG) performance status 0-1 (Appendix 3)

12. Must have a life expectancy ≥ 16 weeks.

13. Must have normal organ and bone marrow function measured within 28 days prior to administration of study treatment as defined below:

14. Haemoglobin ≥ 10.0 g/dL with no blood transfusion in the past 28 days

15. Absolute neutrophil count (ANC) ≥ 1.5 x 109/L

16. Platelet count ≥ 100 x 109/L

17. Total bilirubin ≤ 1.5 x institutional upper limit of normal (ULN)

18. Aspartate aminotransferase (AST) (Serum Glutamic Oxaloacetic Transaminase (SGOT)) / Alanine aminotransferase (ALT) (Serum Glutamic Pyruvate Transaminase (SGPT)) ≤ 2.5 x institutional upper limit of normal unless liver metastases are present in which case they must be ≤ 5x ULN

19. Must have creatinine clearance estimated of ≥51 mL/min using the Cockcroft-Gault equation or based on a 24 hour urine test :

i. Estimated creatinine clearance = (140-age [years]) x weight (kg) (x F)a i. serum creatinine (mg/dL) x 72 ii. a where F=0.85 for females and F=1 for males.

20. Ability to swallow oral medications (tablets) without chewing, breaking, crushing, opening or otherwise altering the product formulation.

21. Postmenopausal or evidence of non-childbearing status for women of childbearing potential: negative urine or serum pregnancy test within 28 days of study treatment and confirmed prior to treatment on day 1.

a. Postmenopausal is defined as:

22. Amenorrheic for 1 year or more following cessation of exogenous hormonal treatments

23. Luteinizing hormone (LH) and Follicle stimulating hormone (FSH) levels in the post menopausal range for women under 50

24. radiation-induced oophorectomy with last menses >1 year ago

25. chemotherapy-induced menopause with >1 year interval since last menses

26. surgical sterilisation (bilateral oophorectomy or hysterectomy)

Exclusion Criteria:

1. Previous immunotherapy (for example anti-PD-1/L1, including durvalulmab).

2. 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), Stage 1, grade 1 endometrial carcinoma.

3. Resting ECG indicating uncontrolled, potentially reversible cardiac conditions, as judged by the investigator (eg., unstable ischemia, uncontrolled symptomatic arrhythmia, congestive heart failure, QTcF prolongation >500 ms, electrolyte disturbances, etc.), or patients with congenital long QT syndrome.

4. Patients with myelodysplastic syndrome/acute myeloid leukaemia or with features suggestive of MDS/AML.

5. Patients with symptomatic uncontrolled brain metastases. A scan to confirm the absence of brain metastases is not required. The patient can receive a stable dose of corticosteroids before and during the study as long as these were started at least 4 weeks prior to treatment. Patients with spinal cord compression unless considered to have received definitive treatment for this and evidence of clinically stable disease for 28 days.

6. Patients considered a poor medical risk due to a serious, uncontrolled medical disorder, non-malignant systemic disease or active, uncontrolled infection. Examples include, but are not limited to, uncontrolled ventricular arrhythmia, recent (within 3 months) myocardial infarction, uncontrolled major seizure disorder, unstable spinal cord compression, superior vena cava syndrome, extensive interstitial bilateral lung disease on High Resolution Computed Tomography (HRCT) scan or any psychiatric disorder that prohibits obtaining informed consent.

7. Disease progression during or within 4 weeks after PARPi therapy.

8. Subject have received > 2 series of chemotherapy for relapse

9. Concomitant treatment with bevacizumab.

10. Concomitant therapy with any other anticancer therapy or chronic use of systemic corticosteroids of more than 10mg prednisolone daily.

11. 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 prior to starting study treatment is 2 weeks.

12. Concomitant use of known strong (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 prior to starting study treatment is 5 weeks for enzalutamide or phenobarbital and 3 weeks for other agents

13. Previous allogeneic bone marrow transplant or double umbilical cord blood transplantation

14. Subjects being considered at poor medical condition due to a serious, uncontrolled medical disorder or non-malignant systemic disease.

15. Major surgery or significant traumatic injury within 28 days of run-in

16. Immunocompromised subjects

17. Pregnant or breastfeeding women.

18. Participation in a clinical study within 28 days or 5 half-lives of the drug, whichever is longest.

19. Patients unable to swallow orally administered medication and patients with gastrointestinal disorders likely to interfere with absorption of the study medication.

20. Immunocompromised patients, e.g., patients who are known to be serologically positive for human immunodeficiency virus (HIV).

21. Patients with known active hepatitis (i.e. Hepatitis B or C).

22. Patients with a known hypersensitivity to olaparib or any of the excipients of the product.

23. Any unresolved toxicity NCI CTCAE Grade ≥2 from previous anticancer therapy with the exception of alopecia, vitiligo, and the laboratory values defined in the inclusion criteria

1. Patients with Grade ≥2 neuropathy will be evaluated on a case-by-case basis after consultation with the Study Physician.

2. Patients with irreversible toxicity not reasonably expected to be exacerbated by treatment with durvalumab may be included only after consultation with the Study Physician.

24. 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:

1. Patients with vitiligo or alopecia

2. Patients with hypothyroidism (e.g., following Hashimoto syndrome) stable on hormone replacement

3. Any chronic skin condition that does not require systemic therapy

4. Patients without active disease in the last 5 years may be included but only after consultation with the study physician

5. Patients with celiac disease controlled by diet alone

25. Uncontrolled intercurrent illness, including but not limited to, ongoing or active infection, symptomatic congestive heart failure, uncontrolled hypertension, unstable angina pectoris, cardiac arrhythmia, interstitial lung disease, serious chronic gastrointestinal conditions associated with diarrhea, or psychiatric illness/social situations that would limit compliance with study requirement, substantially increase risk of incurring AEs or compromise the ability of the patient to give written informed consent

26. Mean QT interval corrected for heart rate using Fridericia's formula (QTcF) ≥470 ms calculated from 3 ECGs (within 15 minutes at 5 minutes apart) <monotherapy studies this criterion can be removed. For durvalumab in combination with an agent with pro-arrhythmic potential or where effect of the combination on QT is not knownif this criterion should be retained. Patient safety and the cardiac SKG should be consultedas needed>>. Regardless of whether this criteria stays or not, all patients should have a baseline ECG

27. History of active primary immunodeficiency

28. Active infection including tuberculosis (clinical evaluation that includes clinical history, physical examination and radiographic findings, and TB testing in line with local practice), hepatitis B (known positive HBV surface antigen (HBsAg) result), hepatitis CPatients 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 RNA.

29. 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.