PQR309 in Patients With Relapsed or Refractory Primary Central Nervous System Lymphoma

Phase 2

Completed

• Conditions: Primary Central Nervous System Lymphoma
• Interventions: Drug: PQR309

• Registration Number: NCT02669511
• Lead Sponsor: PIQUR Therapeutics AG

Brief Summary

An open-label, non-randomized, two-stage, multicenter study evaluating clinical efficacy, safety and pharmacokinetics of PQR309 in patients with relapsed or refractory Primary Central Nervous System Lymphoma (PCNSL).

Detailed Description

An open-label, non-randomized, two-stage, multicenter study evaluating clinical efficacy, safety, and pharmacokinetics effects of PQR309 in patients with relapsed or refractory Primary Central Nervous System Lymphoma (PCNSL).

The first stage of the study will enroll a minimum of 12 patients with relapsed or refractory Primary Central Nervous System Lymphoma (PCNSL) evaluable for the primary study objective. If during the first stage of the study data emerge that 80 mg p.o. qd is not adequately tolerated or is inefficacious in patients with relapsed or refractory Primary Central Nervous System Lymphoma (PCNSL), additional patients may be enrolled in the study to evaluate alternative dosing regimens, either a lower daily dose (eg. 60 mg) or a lower weekly dose with administration on 2 consecutive days followed by 5 days without treatment in 7-day treatment cycles (intermittent dosing schedule A).In all cases data from at least 12 evaluable patients will be required on the selected dosing regimen (daily or weekly) before the decision is made to proceed with this regimen into the second stage of the study.Nine (9) additional patients will be enrolled for the second stage of the study, for a minimum of 21 patients on the selected dosing regimen in total, evaluable for the final primary endpoint analysis.All patients evaluable for the primary endpoint will be followed until disease progression or death.

Secondary objectives, PQR309 treatment safety and pharmacokinetics (PK) will be evaluated in all enrolled patients in both study stages.

Study Timeline

• Study Start: 2015-11-12
• Study First Submitted: 2016-01-07
• Study First Submitted QC: 2016-01-27
• Study First Posted: 2016-02-01
• Primary Completion: 2018-01-12
• Study Completion: 2018-01-12
• Disposition First Submitted: 2019-06-27
• Disposition First Submitted QC: 2019-06-27
• Status Verified: 2019-07
• Last Update Submitted: 2019-07-03
• Disposition First Posted: 2019-07-05
• Last Update Posted: 2019-07-09

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 21

Inclusion Criteria

1. ≥18 years of age.
2. Patient with histologically/cytologically confirmed Primary Central Nervous System Lymphoma (PCNSL)
3. Relapsed or refractory Primary Central Nervous System Lymphoma (PCNSL) demonstrated by cranial MRI.
4. Presence of at least one lesion of bi-dimensionally measurable disease on baseline
5. MRI with a contrast-enhancing tumor of at least 1 cm (10 mm) in the longest diameter.
6. Maximum one prior systemic therapy regimen.
7. If receiving corticosteroids, patients must have been on a stable or decreasing dose of corticosteroids and no more than 8 mg dexamethasone (or equivalent) for at least 5 days prior to date of enrollment.
8. Karnofsky Performance Score (KPS) ≥ 70%.
9. More than 4 weeks from any investigational agent.
10. Adequate haematological, liver and renal function
11. Able and willing to swallow and retain oral medication.
12. Female and male patients of reproductive potential must agree to use effective contraception from screening until 90 days after discontinuing study treatment.
13. Willing and able to sign the informed consent and to comply with the protocol for the duration of the study.

Exclusion Criteria

1. Central Nervous System (CNS) Lymphoma or chronic immunosuppression-associated central nervous system (CNS) lymphoma.

2. Previous allogeneic hematopoietic stem cell transplant (HSCT transplant).

3. Previous whole brain radiotherapy (WBRT)

4. Other concomitant anti-tumor therapy as determined by the study team.

5. Patients unable to undergo contrast-enhanced MRI.

6. Prior treatment with a phosphoinositide -3 kinase (PI3K) inhibitor, Protein Kinase B Inhibitor is known as AKT inhibitor, or mammalian target of rapamycin (mTOR) inhibitor.

7. Patient taking enzyme-inducing anti-epileptic drug (EIAED) < 7 days of the first dose of PQR309.

8. Patient is taking a drug with a risk to promote QT prolongation and Torsades de Pointes.

9. Patient is currently using herbal preparations or medications. Patient should stop using herbal medications 7 days prior to the first dose of the study drug.

10. Medically documented history of or active major depressive episode, bipolar disorder (I or II), obsessive-compulsive disorder, schizophrenia, a history of suicidal attempt or ideation, or homicidal ideation (e.g. risk of doing harm to self or others), or patients with active severe personality disorders.

11. Anxiety ≥ Common Terminology Criteria (CTC) of adverse events (AE) grade 3.

12. Patient has an uncontrolled intercurrent illness, including, but not limited to, ongoing or active infection, HIV infection, chronic liver disease.

    chronic renal disease, pancreatitis, chronic pulmonary disease, active cardiac disease or cardiac dysfunction, interstitial lung disease, active autoimmune disease, uncontrolled diabetes, neuropsychiatric or social situations that would limit compliance with the study requirements.

13. Presence of gastrointestinal disease or any other condition that could interfere significantly with the absorption of the study drug.

14. Concomitant treatment with medicinal products that increase the potential hydrogen (pH), reduce acidity of the upper gastrointestinal tract, including, but not limited to, proton-pump inhibitors (e.g. omeprazole), H2-antagonists (e.g. ranitidine) and antacids. Patients may be enrolled in the study after a washout period sufficient to terminate their effect.

15. Patient has a history of invasive malignancy other than Primary Central Nervous System Lymphoma (PCNSL). Patients are eligible, if they are disease-free for at least 3 years and deemed to be at low risk for recurrence by the investigator. Patients diagnosed with cervical cancer in situ, basal cell or squamous cell carcinoma of the skin and treated within the past 3 years are eligible.

16. Women who are pregnant or breast feeding.

17. Women able to conceive and unwilling to practice an effective method of birth control from screening until 90 days after discontinuing study treatment (women of childbearing potential must have a negative serum pregnancy test within 7 days prior to first dose of PQR309).

18. Fasting glucose > 7.0 mmol/L (126 mg/dL). or HbA1c > 6.4%.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
PQR309	PQR309	A single arm study with PQR309, a phosphoinositide-3-kinases (PI3K) and inhibitor of the mammalian target of rapamycin (mTOR), 60mg/80mg given once a day, orally.

Primary Outcome Measures

Name	Time	Method
Overall Response Rate (ORR)	Every 8 weeks up to 6 months	ORR including complete response (CR, unconfirmed complete(CRu) and partial response (PR) according to the 2005 Response Criteria of the Central Nervous System (CNS) Lymphoma Collaborative Group (IPCG)

Secondary Outcome Measures

Name	Time	Method
Changes in puls rate	Week 1 Day 1 prior to treatment, Treatment on Day 8,Day 15 and 22, Day 43 and every subsequent 3 weeks, at the end of treatment and 30days after last dose	Continous Dosing and Intermittent Dosing
Changes in Physical examination according to Karnofsky Performance Status (KPS)	Week 1 Day 1 prior to treatment, Treatment on Day 8,Day 15 and 22, Day 43 and every subsequent 3 weeks, at the end of treatment and 30days after last dose	Continous Dosing and Intermittent Dosing
Generalized anxiety disorder mood scale score (GAD7)	Treatment on Day 22, Day 43 and every subsequent 3 weeks, at the end of treatment and 30days after last dose	Continous Dosing and Intermittent Dosing
Depression Test PHQ-9	Treatment on 22, Day 43 and every subsequent 3 weeks, at the end of treatment and 30days after last dose	Continous Dosing and Intermittent Dosing
Changes in haematology	Week 1 Day 1 prior to treatment, Treatment on Day 8, Day15,Day 22, Day 36 and Day 43 and every subsequent 3 weeks, at the end of treatment and 30 days after last dose	Continous Dosing and Intermittent Dosing
Changes in Routine blood chemistry	Week 1 Day 1 prior to treatment, Treatment on Day 8, Day15,Day 22, Day 36 and Day 43 and every subsequent 3 weeks, at the end of treatment and 30 days after last dose	Continous Dosing and Intermittent Dosing
Number of adverse events (AE) as related to the study medication.	Week 1 Day 1 to 30 days after last dose up to 12 months	Continous Dosing and Intermittent Dosing
Changes in blood pressure	Week 1 Day 1 prior to treatment, Treatment on Day 8,Day 15 and 22, Day 43 and every subsequent 3 weeks, at the end of treatment and 30days after last dose	Continous Dosing and Intermittent Dosing
Changes in body weight	Week 1 Day 1 prior to treatment, Treatment on Day 8,Day 15 and 22, Day 43 and every subsequent 3 weeks, at the end of treatment and 30days after last dose	Continous Dosing and Intermittent Dosing
Changes in temperature	Week 1 Day 1 prior to treatment, Treatment on Day 8,Day 15 and 22, Day 43 and every subsequent 3 weeks, at the end of treatment and 30days after last dose	Continous Dosing and Intermittent Dosing
Changes of Insulin/Glucose/C-Peptide	Week 1 Day 1 prior to treatment, Treatment on Day 8, Day15,Day 22, Day 36 and Day 43 and every subsequent 3 weeks, at the end of treatment and 30 days after last dose	Continous Dosing and Intermittent Dosing
Changes of haemostasis	Week 1 Day 1 prior to treatment, Treatment on Day 22 and Day 43 and every subsequent 3 weeks, at the end of treatment	Continous Dosing and Intermittent Dosing
Changes of urinanalysis	Week 1 Day 1 prior to treatment, Treatment on Day 22 and Day 43 and every subsequent 3 weeks, at the end of treatment	Continous Dosing and Intermittent Dosing
Changes of ECG	Week 1 Day 1 prior to treatment, Treatment on Day 22 and Day 43 and every subsequent 3 weeks, at the end of treatment	Continous Dosing and Intermittent Dosing