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Vemurafenib Plus Copanlisib in Radioiodine-Refractory (RAIR) Thyroid Cancers

A Phase Ib Trial of Vemurafenib Plus Copanlisib to Enhance Radioiodine Avidity in Radioiodine-Refractory Thyroid Cancers

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04462471
Enrollment
8
Registered
2020-07-08
Start date
2020-06-26
Completion date
2023-09-29
Last updated
2025-09-08

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

Conditions

BRAF V600E Mutation Positive, Thyroid Cancer, Thyroid Cancer, Follicular, Thyroid Cancer (Follicular Cell), Thyroid Cancer, Papillary, Thyroid Carcinoma

Keywords

thyroid carcinoma of follicular origin, thyroid cancer, thyroid cancer, follicular, thyroid cancer, papillary, thyroid cancer, poorly differentiated, BRAF V600, RAIR disease, Memorial Sloan Kettering Cancer Center, 20-053

Brief summary

The purpose of this study is to develop a new drug treatment to reverse tumor resistance to radioiodine in BRAF mutant tumors so that radioiodine can be given to shrink tumors. This study is also being done to find out the highest doses of copanlisib and vemurafenib that, when given in combination, do not cause serious side effects, and whether the study treatment will make radioiodine therapy work better in patients with BRAF-mutant thyroid cancers.

Interventions

DIAGNOSTIC_TESTI-124 PET/CT lesion dosimetry

I-124 PET/CT scans will be performed during this process to quantify baseline RAI avidity in index metastatic lesion(s)

DRUGVemurafenib

Dose level 1 & 2: 960 mg PO bid Dose level -1: 720 mg PO bid Dose level -2: 480 mg PO bid

DRUGCopanlisib

Dose level 2: 60 mg IV weekly Dose level 1, -1, -2: 45 mg IV weekly

Sponsors

Memorial Sloan Kettering Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Histologically or cytologically confirmed thyroid carcinoma of follicular origin (including papillary, follicular, and poorly differentiated subtypes and their respective variants). * A tumor sample (primary, recurrent, or metastatic tumors) possessing a BRAF V600 mutation, as confirmed in a CLIA-certified laboratory or using an FDA-approved assay * Measurable disease by RECIST v1.1 (tumors in previously irradiated fields may be considered measurable if there is evidence of tumor progression after radiation treatment) * RAIR disease, as defined by any one of the following: * A metastatic lesion that is not RAI-avid on a diagnostic radioiodine scan * An RAI-avid lesion that remained stable in size or progressed despite RAI treatment before entry in this study (there are no size limitations for the index lesion used to satisfy this entry criterion) * The presence of at least 1 FDG-avid lesion * No receipt of treatment for thyroid cancer, defined as: * No I-131 therapy \< 6 months before initiation of the protocol (time of initiation of the protocol is defined as the first day of drug therapy with vemurafenib and copanlisib); diagnostic activities of I-131 (0-10m Ci) are allowed within 6months of initiating the protocol * No external beam radiation therapy \<4 weeks before initiation of the protocol * No chemotherapy or targeted therapy including TKIs \<4 weeks (or \<5 half lives of the drug) before the initiation of this protocol * Age of ≥ 18 years * ECOG performance status ≤ 2 or Karnofsky Performance Score (KPS) ≥ 70% * Tissue from the primary tumor or metastases available for correlative studies. Either a paraffin block or at least 20 unstained slides are acceptable (30 unstained slides is ideal); if \<20 unstained slides are available, and a paraffin block is not available, the patient may be able to participate at the discretion of the investigator * Able to swallow and retain an orally administered pill without any clinically significant gastrointestinal abnormalities that may alter absorption, such as malabsorption syndrome or major resection of the stomach or bowels * Agree to undergo 2 research biopsies of (a) malignant lesion(s). Tumor tissue obtained before study consent or treatment can also be submitted in lieu of performance of the first pretreatment biopsy if the Principal Investigator deems it to be of sufficient quantity/quality/timeliness (tumor tissue obtained more than 3 years from time of study consent would not be eligible). Patients may be exempt from biopsy if (1) the investigator or person performing the biopsy judges that no tumor is accessible for biopsy, (2) the investigator or person performing the biopsy feels that the biopsy poses too great of a risk to the patient, or (3) the patient's platelet count is \<100,000/mcL or the patient cannot be safely removed from anticoagulation therapy (if the anticoagulation therapy needs to be temporarily held for the biopsy procedure). If the investigator deems a second research biopsy to be high risk, the patient may be exempt from the second biopsy. * Screening laboratory values meeting the following criteria: * WBC ≥ 2000/µL * Neutrophils ≥ 1500/µL * Platelets ≥ 100 × 10\^3/µL * Hemoglobin \>9.0 g/dL * Lipase ≤ 1.5 × ULN * AST/ALT ≤ 3 × ULN * Total bilirubin ≤ 1.5 x ULN (except subjects with Gilbert syndrome, who can have total bilirubin \<3.0 mg/dL) * Serum creatinine ≤ 1.5 x ULN or creatinine clearance (CrCl) ≥ 40 mL/min (if using the Cockcroft-Gault formula below): Female CrCl = (140 - age in years) x weight in kg x 0.85 / 82 x serum creatinine in mg/dL Male CrCl = (140 - age in years) x weight in kg x 1.00 / 72 x serum creatinine in mg/dL

Exclusion criteria

* Untreated metastatic brain or leptomeningeal tumors (metastatic brain or leptomeningeal tumors treated with radiation and/or surgery are allowed) * Prior malignancy if diagnosed and treated within 2 years of trial drug initiation (with the exception of nonmelanoma skin cancers or Stage I cancers treated with curative intent).Patients may be included if they have completed therapy for a prior malignancy \>2 years before drug initiation and currently have no evidence of disease * Inability to follow a low-iodine diet or requiring a medication with a high content of iodide (amiodarone) * Current congestive heart failure class \>2, as defined by the New York Heart Association functional classification system * Myocardial infarction \< 6 months before the initiation of protocol * Unstable angina (angina symptoms at rest) or new-onset angina (begun within the last 3 months) * Uncontrolled hypertension (blood pressure \>150/90, despite optimal medical management) * Uncontrolled type I or II diabetes mellitus, as judged by the investigator, or Hgb A1C of \>8.5 * Arterial or venous thrombotic event or embolic event, such as a cerebrovascular accident (including transient ischemic attacks), deep vein thrombosis, or pulmonary embolism, within 3 months before the start of study medication * Nonhealing wound, ulcer, or bone fracture (tumor-related nonhealing wounds are allowed) * Active, clinically serious infections CTCAE v5.0 grade \>2 * History of concurrent condition of interstitial lung disease and/or severely impaired lung function * Known history of HIV infection (all patients must be screened for HIV up to 28 days before start of study) * Seizure disorder requiring medication * Therapy with a prohibited concomitant medication that cannot be temporarily held (at least 2 weeks before initiation of vemurafenib plus copanlisib until 1 week after the last dose) or replaced with a nonprohibited concomitant medication * Systemic corticosteroid therapy at a daily dose \>15 mg prednisone or equivalent (previous corticosteroid therapy must be stopped or reduced to the allowed dose at least 7 days before study registration) * Cytomegalovirus (CMV) PCR-positive at baseline * Evidence or history of a bleeding diathesis or any hemorrhage or bleeding CTCAE v5.0 grade ≥ 3 within 4 weeks before the start of study protocol * HBV or HCV infection. All patients must be screened for HBV and HCV up to 28 days before the start of study medication using the routine hepatitis virus laboratorial panel. Patients positive for HBsAg or HBcAb will be eligible if they are negative for HBV-DNA (these patients should receive prophylactic HBV antiviral therapy). Patients positive for anti-HCV antibody will be eligible if they are negative for HCV-RNA * Known hypersensitivity to any of the test drugs, test drug classes, or excipients in the formulation * Substance abuse or medical, psychological, or social conditions that may interfere with the patient's participation in the study or evaluation of the study results * Patients who are pregnant * Women of child-bearing potential, defined as all women physiologically capable of becoming pregnant, unless they are using highly effective methods of contraception during dosing and for 6 months after the last administration of study treatment. Highly effective contraception methods include: * Total abstinence (when this is in line with the preferred and usual lifestyle of the patient). Periodic abstinence (e.g., calendar, ovulation, symptothermal, postovulation methods) and withdrawal are not acceptable methods of contraception * Female sterilization (have had surgical bilateral oophorectomy with or without hysterectomy), total hysterectomy, or tubal ligation at least 6 weeks before taking study treatment. In cases of oophorectomy alone, only when the reproductive status of the woman has been confirmed by follow-up hormone-level assessment (FSH level in the postmenopausal range) is this acceptable * Male sterilization (at least 6 months before screening). The vasectomized male partner should be the sole partner for that patient * Use of oral, injected, or implanted hormonal methods of contraception or placement of an intrauterine device or intrauterine system or other forms of hormonal contraception that have comparable efficacy (failure rate \<1%)-for example, hormone vaginal ring or transdermal hormone contraception. Note: In cases of use of oral contraception, women should have been stable, on the same pill for a minimum of 3 months before taking study treatment * Women are considered postmenopausal and not of child-bearing potential if they have had 12 months of natural (spontaneous) amenorrhea with an appropriate clinical profile (i.e., age appropriate, history of vasomotor symptoms) or have had surgical bilateral oophorectomy (with or without hysterectomy), total hysterectomy, or tubal ligation at least 6 weeks ago. In cases of oophorectomy alone, only when the reproductive status of the woman has been confirmed by follow-up hormone-level assessment is she considered not of child-bearing potential. * Sexually active men, unless they use a condom during intercourse while on treatment and for 6 months after stopping treatment with study drugs (men should not father a child in this period). A condom is required to be used by vasectomized men as well during intercourse to prevent delivery of the drug via semen.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants Who Experienced a Dose-limiting Toxicity (DLT)6 monthsThe primary objective of this study is to determine the MTD of vemurafenib plus copanlisib inpatients with advanced BRAF mutant RAIR thyroid cancer. The MTD is defined as the highest dose at which no more than 1 of 6 patients treated at that dose experience a DLT.

Countries

United States

Participant flow

Participants by arm

ArmCount
Dose Level 1
Dose Level 1: Vemurafenib 960mg, Copanlisib 45mg
4
Dose Level 2
Dose Level 2: Vemurafenib 960mg, Copanlisib 60mg
4
Dose Level -1
Dose Level -1: Vemurafenib 720mg, Copanlisib 45mg
0
Dose Level -2
Dose Level -2: Vemurafenib 480mg, Copanlisib 45mg
0
Total8

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyAdverse Event0100
Overall StudyDisease progression1000

Baseline characteristics

CharacteristicDose Level 1Dose Level 2Total
Age, Continuous56 years54 years55 years
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants1 Participants1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
4 Participants3 Participants7 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
4 Participants4 Participants8 Participants
Region of Enrollment
United States
4 Participants4 Participants8 Participants
Sex: Female, Male
Female
1 Participants1 Participants2 Participants
Sex: Female, Male
Male
3 Participants3 Participants6 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 40 / 40 / 00 / 0
other
Total, other adverse events
4 / 44 / 40 / 00 / 0
serious
Total, serious adverse events
1 / 41 / 40 / 00 / 0

Outcome results

Primary

Number of Participants Who Experienced a Dose-limiting Toxicity (DLT)

The primary objective of this study is to determine the MTD of vemurafenib plus copanlisib inpatients with advanced BRAF mutant RAIR thyroid cancer. The MTD is defined as the highest dose at which no more than 1 of 6 patients treated at that dose experience a DLT.

Time frame: 6 months

Population: Study closed to low accrual

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Dose Level 1Number of Participants Who Experienced a Dose-limiting Toxicity (DLT)Experienced DLT0 Participants
Dose Level 1Number of Participants Who Experienced a Dose-limiting Toxicity (DLT)Did not experience DLT4 Participants
Dose Level 2Number of Participants Who Experienced a Dose-limiting Toxicity (DLT)Did not experience DLT4 Participants
Dose Level 2Number of Participants Who Experienced a Dose-limiting Toxicity (DLT)Experienced DLT0 Participants
Dose Level -1Number of Participants Who Experienced a Dose-limiting Toxicity (DLT)Experienced DLT0 Participants
Dose Level -1Number of Participants Who Experienced a Dose-limiting Toxicity (DLT)Did not experience DLT0 Participants
Dose Level -2Number of Participants Who Experienced a Dose-limiting Toxicity (DLT)Experienced DLT0 Participants
Dose Level -2Number of Participants Who Experienced a Dose-limiting Toxicity (DLT)Did not experience DLT0 Participants

Source: ClinicalTrials.gov · Data processed: Feb 11, 2026