Treatment of BRAF ( B-Rapidly Accelerated Fibrosarcoma) Mutated Papillary Craniopharyngioma

Study Purpose

Subjects with papillary craniopharyngioma harboring a BRAF mutation will be treated with a BRAF + MEK inhibitor (dabrafenib + trametinib) after informed consent. Study participants will be administered oral dabrafenib and trametinib until maximal tumor volume reduction assessed by MRI. Progression free survival, cognition, ophthalmologic status, hypothalamic status and quality of life will be assessed 1 year after initiation of study treatment

Recruitment Criteria

Accepts Healthy Volunteers Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms	No
Study Type An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes. An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes. Searching Both is inclusive of interventional and observational studies.	Interventional
Eligible Ages	18 Years and Over
Gender	All

More Inclusion & Exclusion Criteria

Inclusion Criteria:

1. Histologically verified papillary craniopharyngioma. 2. BRAF mutated V600E (valine 600 glutamine), verified immunohistochemically and by molecular genetic analysis. 3. Newly diagnosed tumor, or recurrence after previous surgery, where surgery is not considered to be able to be performed radically without the risk of serious or permanent sequelae. 4. Age over 18 years. 5. Functional status according to ECOG (Eastern Cooperative Oncology Group performance status) 0-2. 6. Adequate organ function: neutrophils> 1.5 x 109 platelets> 100 x 109 creatinine <1.5 x ULN (upper limit of normal) or creatinine clearance <45 ml / min bilirubin <1.5 x ULN ASAT (aspartate aminotransferase) / ALAT (alanine aminotransferase) <2.5 x ULN. 7. Ability to understand and give informed consent. 8. Previous cancer, which does not require current treatment is allowed. 9. The patient agrees to use an adequate method to avoid pregnancy.

Exclusion Criteria:

1. Ongoing treatment in another drug study or other experimental treatment. 2. Previous treatment with BRAF or MEK inhibitors. 3. Hypersensitivity to study drugs. 4. Ongoing treatment with non-authorized drugs, (strong inducers of CYP2C8 or CYP3A4). If the patient is on unauthorized drugs, they must be discontinued at least 14 days before inclusion. 5. Known cardiovascular disease where treatment with MEK inhibitors is considered inappropriate, eg severe heart failure, prolongation of QT time, uncontrolled arrhythmia, recent (<6 months) cardiac infarction, uncontrolled hypertension. 6. Active bleeding; intracranial hemorrhage last 4 weeks before inclusion. 7. Thromboembolic disease last 6 months and unstable anticoagulant treatment less than 4 weeks before inclusion. 8. Women who are pregnant or breastfeeding. 9. Previous central serous retinopathy or retinal vein occlusion. 10. Previous uveitis or iritis last 4 weeks before inclusion. 11. Surgery within the last 3 weeks. 12. For postoperative patients; radiation therapy within the last 3 months.

Trial Details

Trial ID: This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.	NCT05525273
Phase Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans. Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data. Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs. Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.	Phase 2
Lead Sponsor The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.	Eva Marie Erfurth, MD, PhD
Principal Investigator The person who is responsible for the scientific and technical direction of the entire clinical study.	Peter Siesjö, MD. PhD.Sara Kinhult, MD. PhDEva Marie Erfurth, MD. PhD
Principal Investigator Affiliation	Department of Neurosurgery, SUS, Lund SwedenDepartment of Oncology, SUS, Lund SwedenDepartment of Endocrinology, SUS, Lund, Sweden
Agency Class Category of organization(s) involved as sponsor (and collaborator) supporting the trial.	Other, Industry
Overall Status	Recruiting
Countries	Sweden
Conditions The disease, disorder, syndrome, illness, or injury that is being studied.	Craniopharyngioma

Additional Details

Background. Papillary craniopharyngioma harbours a BRAF mutation in 90% of cases. Treatment with BRAF + MEK (mitogen activated protein kinase ) inhibitors (dabrafenib + trametinib) may prevent patients from undergoing surgery with a high risk of serious side effects, or provide an additional treatment option when further surgery is not advised. Study intervention Subjects with newly diagnosed craniopharyngioma where radical surgery is not considered adequate or patients with recurrence of craniopharyngioma where further surgery is not considered possible without serious sequelae will be asked for informed consent Study participants are treated continuously with dabrafenib and trametinib orally, until maximal tumor shrinkage. Evaluation is done by MRI to measure tumor volume, as well as assessment of performance status, quality of life, cognition, ophthalmologic status, performance status and hypothalamic status. Study type The study is a Phase II, single armed, open label and multicenter study Study drugs are Dabrafenib (Tafinlar) and trametinib (Mekinist) Primary outcome To evaluate tumor response in the form of reduced tumor volume on MRI in patients with papillary craniopharyngioma during treatment with dabrafenib and trametinib. Secondary outcomes. To evaluate dabrafenib and trametinib treatment for the following aspects:

- response according to RECIST Duration of response for patients treated without subsequent surgery.

- how many patients become operable after neoadjuvant treatment.

- progression-free survival after 1 and 2 years.

- quality of life during and after treatment The effect of treatment on vision, cognition and hypothalamic effects Exploratory outcomes Levels of circulating BRAF Trial population 25 patients Trial duration Participants are treated with the study treatment for at least one year if the treatment is well tolerated, to maximum tumor reduction, or longer according to the investigators´s assessment.

Treatment is discontinued in case of progression, unacceptable toxicity or at the request of the patient.

Arms & Interventions

Arms

Experimental: Dabrafenib and trametinib

Dabrafenib 75 mg twice daily and trametinib 2 mg once daily

Interventions

Drug: - Oral dabrafenib and trametinib

Neoadjuvant or postoperative treatment of patients with verified BRAF mutated papillary craniopharyngioma

Contact a Trial Team

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International Sites

Department of Endocrinology, Lund, Sweden

Status

Recruiting

Address

Department of Endocrinology

Lund, , 22185

Site Contact

Eva Marie Erfurth, MD, PhD

[email protected]

+4646172363

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