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Study of Copanlisib and Ketogenic Diet

Pilot Phase II Study of the PI3K Inhibitor Copanlisib in Combination With a Ketogenic Diet in the Treatment of Patients With Relapsed or Refractory Follicular Lymphoma or Endometrial Cancer

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04750941
Enrollment
1
Registered
2021-02-11
Start date
2022-02-10
Completion date
2023-06-09
Last updated
2025-03-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Endometrial Cancer, Follicular Lymphoma

Keywords

Keto diet, Copanlisib

Brief summary

This is a multicenter, open label, pilot phase II study of the PI3K inhibitor copanlisib in combination with a ketogenic diet in the treatment of patients with one of the following malignancies: (a) relapsed or refractory (R/R) follicular lymphoma (FL), (b) R/R endometrial cancer (EC) with a documented activating mutation in PIK3CA or loss of phosphatase and tensin homolog (PTEN).

Detailed description

As the investigators recently reported ketogenic diet can suppress hyperinsulinemia associated with PI3K inhibitors, leading to potentiation of the anti-tumor effects of PI3K inhibitors. Copanlisib potently inhibits PI3Kα and PI3Kδ. It has been approved for the treatment of relapsed follicular lymphoma, based on ORR of 59% (84 of 142 patients). The CR rate in FL was 14%, and the median progression-free survival was 11.2 months. Copanlisib demonstrated encouraging clinical activity in marginal zone lymphoma (ORR 70% including 9% CR). While these results are clinically meaningful, FL and MZL inevitably develop resistance to copanlisib with time, even in those patients who initially respond to the therapy. Novel strategies to improve the efficacy of copanlisib in FL and MZL, by improving CR and PFS, may transform how to manage these incurable malignancies.

Interventions

DRUGCopanlisib

Copanlisib will be infused intravenously on days 1, 8, 15 of each cycle, over 1 hour, of 28-day cycles.

OTHERKetogenic Diet

In cycle 1, patients will first start the ketogenic diet for 7 days (Day -6 to Day 0). Only the patients who demonstrate compliance and tolerance with the ketogenic diet, as confirmed by pertinent blood and urine tests and a diary of diet, will be allowed to continue the study and start copanlisib on Day 1. The ketogenic diet will continue daily throughout the treatment days. In cycle 2 and beyond, patients will start the ketogenic diet and copanlisib on day 1. The ketogenic diet will then continue daily throughout the treatment days.

Sponsors

Bayer
CollaboratorINDUSTRY
Columbia University
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Be willing and able to provide written informed consent for the trial. * Be 18 years of age or older on day of signing informed consent. * For lymphoma, patients should have measurable disease based on the Lugano Criteria. * For FL patients must have received at least two lines of prior therapy. There is no upper limit for the number of prior therapies. Tumor tissues of all patients are encouraged to be submitted (optional) prospectively for whole or targeted exome sequencing of key cancer related genes, using the Columbia Combined Cancer Panel (CCCP) or a comparable sequencing platform, such as the MSK-IMPACT 468-gene oncopanel. * For EC the patients must have recurrent/advanced tumor for which surgical or the systemic curative treatments, or standard therapeutic approaches are not available. The following histologic subtypes are eligible: endometrioid, serous, clear cell, undifferentiated /dedifferentiated, mucinous, squamous, transitional, not-otherwise specified, and mixed celltype. * Fresh and or archived tumor tissues must be available to (a) establish the diagnosis of the respective malignancies as described in Inclusion Criteria, and (b) be investigated for biomarkers. Patients without historical material or fresh tissue biopsy that is adequate for both diagnosis and correlative studies will not be eligible for the clinical trial. * Left Ventricular Ejection Fraction (LVEF) \> 50%. * A performance status of 0-2 on the Eastern Cooperative Oncology Group (ECOG) Performance Scale. * Demonstrate adequate organ function. All screening labs should be performed within 14 days of treatment initiation. * HIV positive patients will be eligible as long as the viral load by polymerase chain reaction (PCR) testing is undetectable. * Female patients of childbearing potential must have a negative pregnancy test within 7 days prior to treatment start. * Adequate contraception.

Exclusion criteria

* The following treatments are prohibited: (a) Chemotherapy (including PI3K inhibitors and other approved or investigational drugs) and monoclonal antibody within 3 weeks; (b) radiotherapy within 2 weeks prior to entering the study; (c) systemic steroids that have not been stabilized (≥ 5 days) to the equivalent of ≤10 mg/day prednisone prior to the start of the study drugs. * Patients that have not recovered from adverse events due to chemotherapy agents administered more than 3 weeks earlier. * Hypersensitivity to copanlisib or any of its excipients. * Type I diabetes * Uncontrolled Type II diabetes mellitus (HbA1c\> 7.5%). * Type II diabetes requiring treatment with a sulfonylurea, meglitinide, or insulin. * Patients that received major surgery and have not recovered adequately from the toxicity and/or complications from the intervention prior to starting therapy. * Patients with active, clinically serious infections \> CTCAE version 5 Grade 2. * Patients with known active concurrent malignancy with the following exception: nonmelanoma skin cancer, prostatic intraepithelial neoplasia, or carcinoma in situ of the cervix, prostate cancer that responds to androgen deprivation therapy and has no progression of disease for at least 12 months. If there is a history of prior malignancy, the patient must be disease-free for ≥ 3 years. * Uncontrolled hypertension, i.e., blood pressure (BP) of ≥ 150/90; patients who have a history of hypertension controlled by medication must be on a stable dose (for at least one month) and meet all other inclusion criteria. * Concomitant use of strong CYP3A4 inhibitors (defined in the protocol). * Uncontrolled moderate to severe hypertriglyceridemia (TG\>300 mg/dL). * Myocardial infarction within 6 months of cycle 1, day 1. * Symptomatic coronary artery disease (CAD), e.g., angina Canadian Class II-IV (see Appendix 5). * An ECG recorded at screening showing evidence of cardiac ischemia. * Congestive heart failure (CHF) that meets New York Heart Association (NYHA) Class II to IV definitions and/or ejection fraction \< 40% by multigated acquisition (MUGA) scan or \< 50% by echocardiogram and/or magnetic resonance imaging (MRI); * Arterial or venous thrombotic or embolic events such as cerebrovascular accident (including transient ischemic attacks) within 6 months before the start of study medication. * Patients who are pregnant or breastfeeding, or expecting to conceive or father children within the projected duration of the trial, starting with the pre-screening or screening visit through at least 30 days after the last dose of trial treatment. * History of nephrolithiasis or nephrolithiasis incidentally discovered during CT screening. \*Known selenium deficiency. * Body mass index (BMI) less than 20. * An allergy or intolerance to egg, gluten or milk protein. * History of serious or uncontrolled gout or hyperuricemia. * Pregnancy, lactation, or breastfeeding. * Any other disease, metabolic dysfunction, physical examination finding, or clinical laboratory finding that, in the investigators' opinion, gives reasonable suspicion of a disease or condition that contraindicates the use of an investigational drug or that may affect the interpretation of the results or render the patient at high risk from treatment complications. * Major surgical procedure or significant traumatic injury within 28 days prior to Day 1 or anticipation of the need for major surgery during the course of study treatment.

Design outcomes

Primary

MeasureTime frameDescription
Objective Response Rate (ORR)Up to 58 weeks or 4 weeks after the last doseORR will be determined from the number of individuals with a complete response (CR) and number of individuals with a partial response (PR)

Secondary

MeasureTime frameDescription
Complete Response (CR) RateUp to 58 weeks or 4 weeks after the last doseTotal number of participants with a CR.
Partial Response (PR) RateUp to 58 weeks or 4 weeks after the last doseTotal number of participants with a PR.
ORR at the Simon Stage I AnalysisUp to 58 weeks or 4 weeks after the last doseORR will be determined from the number of individuals with a complete response (CR) and number of individuals with a partial response (PR).
Patient Compliance With the Ketogenic DietUp to 58 weeks or 4 weeks after the last doseTotal # of patients who are compliant with the ketogenic diet.

Countries

United States

Participant flow

Participants by arm

ArmCount
Follicular Lymphoma (FL)
In cycle 1, patients with FL will first start the ketogenic diet for 7 days (Day -6 to Day 0). Only patients who demonstrate compliance and tolerance with the ketogenic diet for all 7 days, as confirmed by pertinent blood and urine tests, will be allowed to continue the study and treatment using copanlisib and the ketogenic diet starting on Day 1. In cycle 2 and beyond, patients will start the ketogenic diet and copanlisib on day 1.
1
Endometrial Cancer (EC)
In cycle 1, patients with EC will first start the ketogenic diet for 7 days (Day -6 to Day 0). Only patients who demonstrate compliance and tolerance with the ketogenic diet for all 7 days, as confirmed by pertinent blood and urine tests, will be allowed to continue the study and treatment using copanlisib and the ketogenic diet starting on Day 1. In cycle 2 and beyond, patients will start the ketogenic diet and copanlisib on day 1.
0
Total1

Baseline characteristics

CharacteristicFollicular Lymphoma (FL)Total
Age, Categorical
<=18 years
0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
1 Participants1 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
1 Participants1 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants
Race (NIH/OMB)
White
1 Participants1 Participants
Region of Enrollment
United States
1 participants1 participants
Sex: Female, Male
Female
0 Participants0 Participants
Sex: Female, Male
Male
1 Participants1 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 10 / 0
other
Total, other adverse events
1 / 10 / 0
serious
Total, serious adverse events
0 / 10 / 0

Outcome results

Primary

Objective Response Rate (ORR)

ORR will be determined from the number of individuals with a complete response (CR) and number of individuals with a partial response (PR)

Time frame: Up to 58 weeks or 4 weeks after the last dose

Population: No participants were assigned to the EC arm due to enrollment challenges.

ArmMeasureValue (NUMBER)
Follicular Lymphoma (FL)Objective Response Rate (ORR)100 percent of participants
Secondary

Complete Response (CR) Rate

Total number of participants with a CR.

Time frame: Up to 58 weeks or 4 weeks after the last dose

Population: No participants were assigned to the EC arm due to enrollment challenges.

ArmMeasureValue (NUMBER)
Follicular Lymphoma (FL)Complete Response (CR) Rate0 percent of participants
Secondary

ORR at the Simon Stage I Analysis

ORR will be determined from the number of individuals with a complete response (CR) and number of individuals with a partial response (PR).

Time frame: Up to 58 weeks or 4 weeks after the last dose

Population: No participants were assigned to the EC arm due to enrollment challenges.

ArmMeasureValue (NUMBER)
Follicular Lymphoma (FL)ORR at the Simon Stage I Analysis100 percent of participants
Secondary

Partial Response (PR) Rate

Total number of participants with a PR.

Time frame: Up to 58 weeks or 4 weeks after the last dose

Population: No participants were assigned to the EC arm due to enrollment challenges.

ArmMeasureValue (NUMBER)
Follicular Lymphoma (FL)Partial Response (PR) Rate100 percent of participants
Secondary

Patient Compliance With the Ketogenic Diet

Total # of patients who are compliant with the ketogenic diet.

Time frame: Up to 58 weeks or 4 weeks after the last dose

Population: No participants were assigned to the EC arm due to enrollment challenges.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Follicular Lymphoma (FL)Patient Compliance With the Ketogenic Diet1 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026