Dabrafenib, Trametinib, and Spartalizumab for the Treatment of BRAF V600E or V600K Mutation Positive Stage IIIB/C/D Melanoma

Altering Adjuvant Therapy Based on Pathologic Response to Neoadjuvant Dabrafenib and Trametinib (ALTER-PATH NeoDT)

This phase II trial studies how well dabrafenib, trametinib, and spartalizumab works in treating patients with BRAF V600E or V600K mutation positive stage IIIB/C/D melanoma, who do not achieve a pathologic complete response after 8 weeks of dabrafenib and trametinib treatment. Patients who achieve a pathologic complete response after 8 weeks of neoadjuvant dabrafenib and trametinib will receive adjuvant dabrafenib and trametinib. Dabrafenib and trametinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Immunotherapy with monoclonal antibodies, such as spartalizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving dabrafenib, trametinib, and spartalizumab may help to control melanoma.

Study Overview

• Status: Terminated
• Conditions: Pathologic Stage IIIB Cutaneous Melanoma AJCC v8; Pathologic Stage IIIC Cutaneous Melanoma AJCC v8; Pathologic Stage IIID Cutaneous Melanoma AJCC v8
• Intervention / Treatment: Drug: Trametinib; Procedure: Therapeutic Conventional Surgery; Drug: Dabrafenib; Biological: Spartalizumab

Detailed Description

PRIMARY OBJECTIVE:

I. To determine the 12-month relapse free survival (RFS) rate in stage IIIB/C/D melanoma patients who, after 8 weeks of neoadjuvant dabrafenib and trametinib, do not achieve a pathologic complete response (pCR) and receive adjuvant dabrafenib, trametinib and spartalizumab.

SECONDARY OBJECTIVES:

I. To evaluate the safety of neoadjuvant dabrafenib and trametinib and adjuvant dabrafenib, trametinib and spartalizumab.

II. To determine the 12-month relapse free survival (RFS) rate in stage IIIB/C/D.

III. Melanoma patients who, after 8 weeks of neoadjuvant dabrafenib and trametinib, achieve a pCR and receive adjuvant dabrafenib and trametinib.

IV. To assess the recurrence patterns, distant metastasis-free survival (DMFS), and overall survival (OS) in all patients treated on protocol.

EXPLORATORY OBJECTIVES:

I. To assess immunological and molecular features of treatment response and resistance.

II. To assess circulating markers and correlate them with treatment response and relapse and toxicity III. To assess the impact of neoadjuvant therapy on surgical resectability.

OUTLINE:

NEOADJUVANT TREATMENT: Patients receive dabrafenib orally (PO) twice daily (BID) and trametinib PO once daily (QD) on days 1-28. Treatment repeats every 28 days for 2 cycles in the absence of disease progression or unacceptable toxicity.

SURGERY: Patients undergo surgical resection of melanoma.

ADJUVANT TREATMENT OF pCR PATIENTS: Patients receive dabrafenib PO BID and trametinib PO QD on days 1-28. Cycles repeats every 28 days for 44 weeks in the absence of disease progression or unacceptable toxicity.

ADJUVANT TREATMENT OF NON pCR PATIENTS: Patients receive spartalizumab intravenously (IV) over 30 minutes on day 1, dabrafenib PO BID and trametinib PO QD on days 1-28. Cycles repeats every 28 days for 44 weeks in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up every 3-4 months for 2 years.

• Study Type: Interventional
• Enrollment (Actual): 4
• Phase: Phase 2

Contacts and Locations

Study Locations

• United States
  • Texas
    • Houston, Texas, United States, 77030
      • M D Anderson Cancer Center

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• Capable of giving written informed consent, which includes compliance with the requirements and restrictions listed in the consent form
• Patients must have histologically or cytologically confirmed clinically detected, node involved Stage IIIB/C/D melanoma by American Joint Committee on Cancer (AJCC) version 8 and surgically resectable disease. The definition of resectability can be determined by the patient's surgical oncologist and verified via discussion at multidisciplinary tumor conference attended by melanoma medical and surgical oncology staff. Resectable tumors are defined as having no significant vascular, neural or bony involvement that would preclude complete resection or necessitate the use of adjuvant radiation. Only cases where a complete surgical resection with tumor- free margins can safely be achieved are defined as resectable
• BRAF mutation-positive melanoma (V600E or V600K) based on report from a Clinical Laboratory Improvement Act (CLIA) certified laboratory
• Patients must have measurable disease, defined by Response Evaluation Criteria in Solid Tumors (RECIST) 1.1
• Patients who have been previously treated in the adjuvant setting with ipilimumab or interferon alpha or investigational vaccines for melanoma will be eligible for treatment after a 28 day wash-out period
• Patients who have previously received anti PD-1 in the adjuvant setting will be allowed if it has been six months or longer since previous drug exposure
• Eastern Cooperative Oncology Group (ECOG) performance status 0-1

• Women of childbearing potential, defined as all women physiologically capable of becoming pregnant will be required to use highly effective methods of contraception during dosing and for 150-days after stopping treatment with spartalizumab. Highly effective contraception methods include:

  • Total abstinence (when this is in line with the preferred and usual lifestyle of the subject). Periodic abstinence (e.g., calendar, ovulation, symptothermal, post-ovulation 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 six weeks before taking study treatment. In case of oophorectomy alone, only when the reproductive status of the woman has been confirmed by follow up hormone level assessment.
  • Male sterilization (at least 6 months prior to screening). The vasectomized male partner should be the sole partner for that subject
  • Placement of a non-hormonal intrauterine device (IUD) or intrauterine system (IUS) with a documented failure rate of less than 1% per year

  • Notes:

    • Double-barrier contraception: condom and occlusive cap (diaphragm or cervical/vault caps) with a vaginal spermicidal agent (foam/gel/cream/suppository) are not considered highly effective methods of contraception.
    • Hormonal-based methods (e.g., oral contraceptives) are not considered as highly effective methods of contraception due to potential drug-drug interactions with dabrafenib.
• Women are considered post-menopausal 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 six weeks ago. In the case 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 childbearing potential
• Sexually active males must use a condom during intercourse while on treatment and for 150 days after stopping treatment with spartalizumab and should not father a child in this period. A condom is required to be used by vasectomized men as well during intercourse in order to prevent delivery of the drug via semen
• Absolute neutrophil count (ANC) >= 1500/uL
• Platelets >= 100,000/uL

• Hemoglobin >= 9.0 g/dL or >= 5.6 mmol/L

  • Criteria must be met without erythropoietin dependency and without packed red blood cell (pRBC) transfusion within last 2 weeks

• Creatinine =< 1.5 x upper limit of normal (ULN) OR measured or calculated creatinine clearance (glomerular filtration rate [GFR] can also be used in place of creatinine or creatinine clearance [CrCl]) >= 30 mL/min for participant with creatinine levels > 1.5 x institutional ULN

  • Creatinine clearance (CrCl) should be calculated per institutional standard
• Total bilirubin =< 1.5 x ULN OR direct bilirubin =< ULN for participants with total bilirubin levels > 1.5 x ULN
• Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase [SGOT]) and alanine aminotransferase (ALT) (serum glutamic pyruvic transaminase [SGPT]) =< 2.5 x ULN
• International normalized ratio (INR) OR prothrombin time (PT) =<1.5 x ULN unless participant is receiving anticoagulant therapy as long as prothrombin time (PT) or partial thromboplastin time (aPTT) is within therapeutic range of intended use of anticoagulants
• Activated partial thromboplastin time (aPTT) =< 1.5 x ULN unless participant is receiving anticoagulant therapy as long as PT or aPTT is within therapeutic range of intended use of anticoagulants

Exclusion Criteria:

• Currently receiving cancer therapy (chemotherapy, radiation therapy, immunotherapy, or biologic therapy) or investigational anti-cancer drug within 28 days
• Evidence of metastatic melanoma or patients with only in-transit metastases without involved nodes
• Prior BRAF or MEK inhibitor use
• Prior anti PD-1 or anti PD-L1 inhibitor use in last 6 months
• Prior malignancy active within the previous 2 years except for patient's prior diagnosis of melanoma and locally curable cancers that have been apparently cured, such as basal or squamous cell skin cancer, superficial bladder cancer, or carcinoma in situ of the prostate, cervix, or breast with local control measures (surgery, radiation)
• Subjects with active, known or suspected autoimmune disease. Subjects with vitiligo, type I diabetes mellitus, residual hypothyroidism due to autoimmune condition only requiring hormone replacement, psoriasis not requiring systemic treatment, or conditions not expected to recur in the absence of an external trigger are permitted to enroll
• Subjects with a condition requiring systemic treatment with either corticosteroids (> 10 mg daily prednisone equivalents) or other immunosuppressive medications within 14 days of study drug administration. Inhaled or topical steroids and adrenal replacement doses > 10 mg daily prednisone equivalents are permitted in the absence of active autoimmune disease
• Any positive test result for hepatitis B or C and human immunodeficiency virus (HIV) virus indicating acute or chronic infection
• Known history of testing positive for human immunodeficiency virus or known acquired immunodeficiency syndrome
• History of severe hypersensitivity reaction to any monoclonal antibody
• History of Central serous retinopathy (CSR) or retinal vein occlusion (RVO), or predisposing factors to RVO or CSR (e.g. uncontrolled glaucoma or ocular hypertension, uncontrolled systemic disease such as hypertension, diabetes mellitus, or history of hyperviscosity or hypercoagulability syndromes)
• Presence of active gastrointestinal disease or other condition that will interfere significantly with the absorption, distribution, metabolism, or excretion of drugs
• Corrected QT (QTc) interval >= 480 msec (>= 500 msec for subjects with bundle branch block)
• Uncontrolled arrhythmias
• Class II, III, or IV heart failure as defined by the New York Heart Association (NYHA) functional classification system
• Pregnant or lactating female
• Unwillingness or inability to follow the procedures required in the protocol
• Uncontrolled diabetes, hypertension or other medical conditions that may interfere with assessment of toxicity
• Subjects with known glucose 6 phosphate dehydrogenase (G6PD) deficiency

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm

Intervention / Treatment

Experimental: Treatment (dabrafenib, trametinib, surgery, spartalizumab); NEOADJUVANT TREATMENT: Patients receive dabrafenib PO BID and trametinib PO QD on days 1-28. Treatment repeats every 28 days for 2 cycles in the absence of disease progression or unacceptable toxicity. SURGERY: Patients undergo surgical resection of melanoma. ADJUVANT TREATMENT OF pCR PATIENTS: Patients receive dabrafenib PO BID and trametinib PO QD on days 1-28. Cycles repeats every 28 days for 44 weeks in the absence of disease progression or unacceptable toxicity. ADJUVANT TREATMENT OF NON pCR PATIENTS: Patients receive spartalizumab IV over 30 minutes on day 1, dabrafenib PO BID and trametinib PO QD on days 1-28. Cycles repeats every 28 days for 44 weeks in the absence of disease progression or unacceptable toxicity.

Drug: Trametinib; Given PO; Other Names: Mekinist; GSK1120212; JTP-74057; MEK Inhibitor GSK1120212; Procedure: Therapeutic Conventional Surgery; Undergo surgery; Drug: Dabrafenib; Given PO; Other Names: GSK2118436; BRAF Inhibitor GSK2118436; GSK-2118436; GSK-2118436A; Biological: Spartalizumab; Given IV; Other Names: PDR001; PDR-001

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Survival Rate in Stage IIIb/C/D Subjects	To determine the 12-month relapse free survival (RFS) rate in stage IIIB/C/D melanoma patients who, after 8 weeks of neoadjuvant dabrafenib and trametinib, do not achieve a pCR and receive adjuvant dabrafenib, trametinib an spartalizumab.	Baseline up to 2 years

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Safety of Neoadjuvant Treatments	To evaluate the sarety of neoadjuvant dabrafenib and trametini and adjuvant dabrafenib, trametinib ann spartalizumab	Baseline up to 2 years
Distant Metastasis-free Survival (DMFS) and Overall Survival (OS)	To assess the recurrence patterns, distant metastasis-free survival (DMFS), and overall survival (OS) in all patients treated on protocol.	Baseline upto 2 years

Other Outcome Measures

Outcome Measure	Measure Description	Time Frame
Immune and molecular features of response and resistance	Will be assessed quantitatively. Kruskal-Wallis tests will be used to compare these parameters at each time point between responders (pathological complete response [pCR]) and non-responders (no pCR). Changes in each parameter from baseline to surgery will also be compared between responders and non-responders.	At baseline and at surgical resection
Association between circulating blood markers and treatment response and relapse	Markers and changes in markers over time will be compared between responders and non-responders by using Kruskal-Wallis tests. In addition, generalized linear mixed models may be used to model these markers over time.	At baseline, and assessed up to 2 years
Surgical resectability	A survey will be provided to surgeons regarding the difficulty of surgery. These data will be subjective and will be summarized graphically as numbers permit.	Up to 2 years

Collaborators and Investigators

• Sponsor: M.D. Anderson Cancer Center
• Investigators: Principal Investigator: Rodabe N Amaria, M.D. Anderson Cancer Center

Publications and helpful links

Helpful Links

• MD Anderson Cancer Center

Study record dates

Study Major Dates

• Study Start (Actual): January 29, 2020
• Primary Completion (Actual): October 9, 2023
• Study Completion (Actual): October 9, 2023

Study Registration Dates

• First Submitted: March 4, 2020
• First Submitted That Met QC Criteria: March 13, 2020
• First Posted (Actual): March 17, 2020

Study Record Updates

• Last Update Posted (Actual): October 30, 2024
• Last Update Submitted That Met QC Criteria: October 8, 2024
• Last Verified: October 1, 2024

More Information

Terms related to this study

• Keywords: Immunotherapy; Melanoma; Neoadjuvant; Targeted Therapy; Pathological Response
• Additional Relevant MeSH Terms: Neoplasms by Site; Neoplasms; Neoplasms by Histologic Type; Skin Diseases; Neuroectodermal Tumors; Neoplasms, Germ Cell and Embryonal; Neoplasms, Nerve Tissue; Neuroendocrine Tumors; Nevi and Melanomas; Melanoma, Cutaneous Malignant; Melanoma; Skin Neoplasms; Antineoplastic Agents, Immunological; Immune Checkpoint Inhibitors; Antineoplastic Agents; Molecular Mechanisms of Pharmacological Action; Enzyme Inhibitors; Protein Kinase Inhibitors; Spartalizumab; Trametinib; Dabrafenib
• Other Study ID Numbers: 2019-0906 (Other Identifier: M D Anderson Cancer Center); NCI-2020-00941 (Registry Identifier: CTRP (Clinical Trial Reporting Program))

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No