ClinicalTrials.gg
CompletedNCT03455764Updated Jul 31, 2024Results posted

MCS110 With BRAF/MEK Inhibition in Patients With Melanoma

A Phase 1/2 interventional study of MCS110 and Dabrafenib in Melanoma, sponsored by Dana-Farber Cancer Institute. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-07-31.

Sponsored by Dana-Farber Cancer Institute · Phase 1/2, Interventional, and Treatment

Phase
Phase 1/2
Study type
Interventional
Enrollment
6
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Study summary

This research study is studying a combination of targeted therapies as a possible treatment for advanced melanoma that was found to have a BRAF V600E or BRAF V600K genetic mutation.

The interventions involved in this study are:

  • MCS110
  • Dabrafenib
  • Trametinib
Read the detailed description

This is a Phase I/II clinical trial. A Phase I clinical trial tests the safety of an investigational intervention and also tries to define the appropriate dose of the investigational intervention to use for further studies. "Investigational" means that the intervention is being studied.

The FDA (the U.S. Food and Drug Administration) has not approved MSC110 as a treatment for any disease.

The FDA has approved dabrafenib and trametinib as treatment options for this disease.

Dabrafenib and trametinib attack different proteins that promote the growth of cancerous cells. These two treatments work in cancers with a mutation in the BRAF gene which alters a protein signaling pathway in cancer cells. The BRAF mutation status will be confirmed during this trial by review or procedure in order to make sure this clinical trial is right for the participant. Dabrafenib is a BRAF inhibitor that works by preventing altered BRAF proteins from stimulating the growth of the melanoma cancer cells. Trametinib works by blocking a protein related to BRAF called MEK that has been known to stimulate cells that also promote melanoma growth. In order to participate in the study, the participant disease needs to be tested positive for a mutation (a permanent change in the DNA sequence of a gene) of the BRAF gene that belongs to a class of genes known as oncogenes. When mutated, oncogenes have the potential to cause normal cells to become cancerous. Once the BRAF gene is mutated, the normal functioning of the BRAF protein may be changed. It is normal for patients with a BRAF mutation to receive these types of inhibitor therapies at some point in their treatment.

MCS110 is a colony-stimulating factor-1 (CSF-1) inhibitor. It is a human monoclonal antibody which binds CSF-1. A monoclonal antibody is a type of protein made in the laboratory that can locate and bind to substances in the body, including tumor cells. MCS110 is being developed as a treatment for patients with advanced cancer.

In this research study, the investigators are adding MCS110 to the treatment with dabrafenib and trametinib at the time when the participant's disease is growing despite these medications. The hope is that MCS110 will enhance how the cancer will respond to dabrafenib and trametinib and overcome any resistance to these medications that has developed. In previous laboratory studies performed by treating melanoma cancer cells with a CSF-1R (CSF-1 Receptor which interacts with the CSF-1 protien) inhibitor and a BRAF inhibitor, it was found that the CSF-1R inhibitor was successful in increasing efficacy.

02

Conditions studied

  • Melanoma

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Keywords

  • Melanoma
03

In context

Melanoma

3,370 studies on the registry are indexed under Melanoma; 578 are open to participants now.

This study's enrollment of 6 is below the median of 40 across 2,649 interventional studies indexed under Melanoma.

Browse Melanoma studies →

Lead sponsor

Dana-Farber Cancer Institute is the lead sponsor of 834 studies on the registry; 122 are open to participants now.

Of its 114 completed or terminated interventional studies of FDA-regulated products, 78 (68%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • For enrollment to the phase I portion: participants must have a confirmed melanoma with a BRAF V600E or BRAF V600K mutation (identified via NextGen sequencing using the DFCI/BWH OncoPanel or any CLIA-certified method) that is or unresectable and for which standard curative measures do not exist or are no longer effective.
  • For enrollment to the phase II portion: participants must have a histologically confirmed melanoma with a BRAF V600E or BRAF V600K mutation (identified via NextGen sequencing using the DFCI/BWH OncoPanel or any CLIA-certified method) and have had progression of disease on prior BRAF and MEK inhibitor therapy.
  • Participants enrolling to the phase I portion of the trial must have evaluable or .
  • Participants enrolling to the phase II portion of the trial must have measurable disease, defined as at least one lesion that can be accurately measured in at least one dimension (longest diameter to be recorded for non-nodal lesions and short axis for nodal lesions) as ≥ 10 mm with spiral CT scan, MRI, or calipers by clinical exam. See Section 11 for the evaluation of measurable disease.
  • Age ≥ 18 years. As no dosing or adverse event data are currently available in participants \< 18 years of age, children are excluded from this study but will be eligible for future pediatric trials.
  • performance status 0 - 2 (see Appendix A).
  • of greater than 8 weeks.
  • Participants must have normal organ and marrow function as defined below:

    • ≥ 1.5 K/uL
    • ≥ 100 K/uL
    • ≥ 9 g/dL
    • Total ≤ 1.5 × institutional (ULN)
    • (SGOT)/ALT(SGPT) ≤ 2.5 × institutional ULN
    • Serum creatinine ≤ 1.5 × institutional ULN
    • PT- ≤ 1.5 × institutional ULN (for participants on anticoagulation therapy, ≤ 1.5 × their baseline value)
    • aPTT ≤ 1.5 × institutional ULN (for participants on anticoagulation therapy, ≤ 1.5 × their baseline value)
  • Participants must have a (LVEF) ≥ 50%.
  • Participants must have a of ≤ 470 msec for females and ≤ 450 for males on the screening .
  • The effects of MCS110, trametinib and dabrafenib on the developing human fetus are unknown. For this reason and because anti-cancer agents are known to be teratogenic, women of and men must agree to use adequate (hormonal or barrier method of birth control; abstinence) prior to study entry, for the duration of study participation, and for 4 months after the last dose of MCS110. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately. Men treated or enrolled on this protocol must also agree to use adequate contraception prior to the study, for the duration of study participation, and 4 months after completion of MCS110 administration. 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). For female subjects on the study, the vasectomized male partner should be the sole partner for that subject
    • Use of oral, injected or implanted hormonal methods of contraception or placement of an intrauterine device (IUD) or intrauterine system (IUS), or other forms of hormonal contraception that have comparable efficacy (failure rate \<1%), for example hormone vaginal ring or transdermal hormone contraception. In case of use of oral contraception women should have been stable on the same pill for a minimum of 3 months before taking study treatment.
    • Double-barrier contraception: condom and occlusive cap (diaphragm or cervical/vault caps) with a vaginal spermicidal agent (foam/gel/cream/suppository).
  • Ability to understand and the willingness to sign a written document.
  • Participants must have available. Participants without archival tissue may be enrolled at the discretion of the principal investigator.
  • All prior anti-cancer treatment-related toxicities (except alopecia and laboratory values as listed on Table 1) must be ≤ Grade 1 according to the version 4 (CTCAE version 4.0; NCI, 2009) at the time of randomization

Exclusion criteria

Exclusion Criteria:

  • Participants who have had chemotherapy, radiotherapy, biologic therapy, major surgery, or another agent within 3 weeks (6 weeks for nitrosoureas or mitomycin C) prior to entering the study. Previous BRAF/MEK inhibitor use is allowed with no for the phase I and II portions.
  • Participants who have not recovered to ≤ grade 1 or baseline from toxicity as a result of previous cancer treatment prior to entering the study (with the exception of alopecia and peripheral neuropathy which can be ≤ grade 2).
  • For enrollment to the phase II portion: participants who have not received prior BRAF or MEK inhibitor therapy.
  • Participants with known untreated should be excluded from this clinical trial because of their poor prognosis and because they often develop progressive neurologic dysfunction that would confound the evaluation of neurologic and other adverse events. Participants with a history of brain metastases that have been treated, are no longer taking , and have been stable on imaging for ≥ 4 weeks following the last date of treatment are permitted.
  • History of allergic reactions attributed to compounds of similar chemical or biologic composition to MCS110, dabrafenib, or trametinib.
  • Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.
  • Pregnant women are excluded from this study because MCS110, dabrafenib and trametinib are anti-cancer agents with the potential for teratogenic or abortifacient effects. Pregnancy status will be verified at various points in the trial and a serum pregnancy test will be required. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with MCS110, dabrafenib or trametinib, breastfeeding should be discontinued if the mother is treated with MCS110, dabrafenib or trametinib.
  • Participants with a known history of are ineligible because of the potential for pharmacokinetic interactions with MCS110, dabrafenib, and trametinib with antiretroviral agents. In addition, these participants are at increased risk of lethal infections when treated with marrow-suppressive therapy.
  • Participants with a personal or family history of long syndrome.
  • Participants with a history of a second primary . Exceptions include: patients with a history of malignancies that were treated curatively and have not recurred within 3 years prior to study entry; resected basal and squamous cell carcinomas of the skin, and completely resected carcinoma in situ of any type.
  • Participants with impairment of GI function or GI disease that may significantly alter the absorption of dabrafenib and trametinib in the opinion of the treating investigator (e.g., ulcerative diseases, uncontrolled nausea, vomiting, diarrhea, malabsorption syndrome, small bowel resection).
  • Participants who are unable to swallow or retain oral medication.
  • Participants that require co-administration of strong or moderate inhibitors, as these medications may alter dabrafenib and trametinib concentrations.
  • Participants who require treatment with medications that are strong or moderate CYP3A inducers, as these medications may alter the concentration of trametinib.
  • Participants with evidence of retinal pathology on ophthalmologic examination that is considered a risk factor for neurosensory retinal detachment/central serous chorioretinopathy (CSCR), retinal vein occlusion (RVO), or neovascular macular degeneration.
  • Participants with a history of or current evidence of retinal vein occlusion or retinal pigment epithelial detachment.
  • Participants taking corticosteroids (≥ 10 mg of prednisone or equivalent). Exceptions may be discussed with the Overall PI on a case by case basis.
Terms in these criteria, in plain language(27)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

INR, PT and aPTT (clotting tests)

Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.

Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.

LVEF (left ventricular ejection fraction)

The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.

QT and QTc

On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.

The study may name a correction formula and a limit in milliseconds, often around 450–480.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

CTCAE grade

The US National Cancer Institute’s scale of how severe an adverse event is — any unwanted medical event during a study, such as a symptom, an illness or an abnormal test result, whether or not a treatment caused it. Whether it did is judged separately.

1
Mild.
2
Moderate.
3
Severe.
4
Life-threatening.
5
Death due to the event.

“Side effects of earlier treatment resolved to grade 1 or less” means they have settled to mild or gone.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Washout period

A planned gap after a treatment, so that its effects can lessen before the study treatment or a study assessment. Ask the study team and the doctor who prescribed it before changing any medicine.

Brain metastases

Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).

Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

CYP3A (CYP3A4) inhibitors and inducers

CYP3A is a group of enzymes, mainly CYP3A4, in the liver and gut that break down many medicines. Some medicines, supplements and foods (grapefruit, St John’s wort) slow them down or speed them up, which changes how much of a study drug stays in the body.

Studies list them so they can be avoided or switched; bring a list of everything you take, including supplements.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
6 participants (actual)

Study arms

  • Experimental
    MCS110+ Trametinib + Dabrafenib [Phase I Dose Level 1]

    * MCS110 2.5mg/kg will be administered intravenously every 3 weeks. * Dabrafenib 150mg is given orally every 12 hours. * Trametinib 2mg is given orally daily

    Drug: MCS110 · Drug: Dabrafenib · Drug: Trametinib

  • Experimental
    MCS110 + Trametinib + Dabrafenib [Phase 2]

    * MCS110 will be administered intravenously every 3 weeks. The Dosage will be determined by the DLT of Phase 1 * Dabrafenib 150mg is given orally every 12 hours. * Trametinib 2mg is given orally daily

    Drug: MCS110 · Drug: Dabrafenib · Drug: Trametinib

  • Experimental
    MCS110+ Trametinib + Dabrafenib [Phase I Dose Level -1]

    * MCS110 1.25 mg/kg was administered intravenously every 3 weeks. * Dabrafenib 150mg is given orally every 12 hours. * Trametinib 2mg is given orally daily

    Drug: MCS110 · Drug: Dabrafenib · Drug: Trametinib

  • Experimental
    MCS110+ Trametinib + Dabrafenib [Phase I Dose Level 2]

    * MCS110 5mg/kg was administered intravenously every 3 weeks. * Dabrafenib 150mg is given orally every 12 hours. * Trametinib 2mg is given orally daily

    Drug: MCS110 · Drug: Dabrafenib · Drug: Trametinib

  • Experimental
    MCS110+ Trametinib + Dabrafenib [Phase I Dose Level 3]

    * MCS110 10mg/kg was administered intravenously every 3 weeks. * Dabrafenib 150mg is given orally every 12 hours. * Trametinib 2mg is given orally daily

    Drug: MCS110 · Drug: Dabrafenib · Drug: Trametinib

Interventions

  • DrugMCS110

    MCS110 is a colony-stimulating factor-1 (CSF-1) inhibitor. It is a human monoclonal antibody which binds CSF-1.

  • Dabrafenib attack different proteins that promote the growth of cancerous cells

    Also known as: Tafinlar

  • Trametinib attack different proteins that promote the growth of cancerous cells

    Also known as: Mekinist

06

What researchers measure

Primary outcomes

  1. Number of Participants With Dose Limiting Toxicities (DLT) [Phase I]

    A DLT was defined as an adverse event that (a) was possibly, probably, or definitely related to the study medication regimen and (b) experienced during the first cycle of treatment, and (c) met any of the following criteria: ≥ Grade 3 non-hematological toxicity; grade 3 thrombocytopenia with clinically significant bleeding; grade 4 thrombocytopenia; ≥ grade 3 febrile neutropenia; grade 4 anemia; holding of any study medication due to toxicity for a period of greater than 8 consecutive days or two separate periods of any duration during the first cycle, any other significant toxicity deemed by the principal investigator to be dose limiting.

    Time frame: Participants were followed up to 21 days.

  2. Maximum Tolerated Dose of MCS110 [Phase I]

    The trial used 3+3 design to determine maximum tolerated dose (MTD), escalating on 0/3 or 1/6 DLTs, and de-escalating if two DLTs were encountered. See subsequent primary outcome measure for the DLT definition. MTD was the highest dose level at which 0/3 or 1/6 subjects experienced a DLT.

    Time frame: Participants were followed up to 21 days.

Secondary outcomes

  1. Overall Response Rate (ORR) [Phase I]

    ORR was defined as the percentage of participants achieving complete response (CR) or partial response (PR) on treatment based on RECIST 1.1 criteria. Per RECIST 1.1 for target lesions: CR is complete disappearance of all target lesions and PR is at least a 30% decrease in the sum of longest diameter (LD) of target lesions, taking as reference baseline sum LD. PR or better overall response assumes at a minimum incomplete response/stable disease (SD) for the evaluation of non-target lesions and absence of new lesions.

    Time frame: Participants were followed up to 30 months.

  2. Median Progression Free Survival [Phase I]

    PFS is defined as the duration of time from study entry to documented disease progression (PD) requiring removal from the study or death. Participants alive without PD were censored at the earliest of the date of the last disease evaluation or start of new anticancer therapy. Per RECIST 1.1 for target lesions: PD is at least a 20% increase in sum LD, taking as reference the smallest sum on study with at least 5 mm absolute increase. For non-target lesions, progression-free means no new lesions or unequivocal progression on existing non-target lesions or not evaluated.

    Time frame: Participants were followed up to 30 months.

07

Results

Posted Jul 31, 2024
Limitations and caveats
Early termination resulted from the drug manufacturer's decision to stop drug development.

Participant flow

Participants were enrolled from September 2018 to July 2019.

Participant flow — Overall Study
MilestoneMCS110+ Trametinib + Dabrafenib [Phase I Dose Level 1]MCS110+ Trametinib + Dabrafenib [Phase I Dose Level -1]MCS110+ Trametinib + Dabrafenib [Phase I Dose Level 2]MCS110+ Trametinib + Dabrafenib [Phase I Dose Level 3]MCS110 + Trametinib + Dabrafenib [Phase 2]
Started60000
Completed00000
Not completed60000
Withdrew: Adverse event10000
Withdrew: Disease progression40000
Withdrew: On treatment10000

Outcome measures

PrimaryNumber of Participants With Dose Limiting Toxicities (DLT) [Phase I]

A DLT was defined as an adverse event that (a) was possibly, probably, or definitely related to the study medication regimen and (b) experienced during the first cycle of treatment, and (c) met any of the following criteria: ≥ Grade 3 non-hematological toxicity; grade 3 thrombocytopenia with clinically significant bleeding; grade 4 thrombocytopenia; ≥ grade 3 febrile neutropenia; grade 4 anemia; holding of any study medication due to toxicity for a period of greater than 8 consecutive days or two separate periods of any duration during the first cycle, any other significant toxicity deemed by the principal investigator to be dose limiting.

Time frame:
Participants were followed up to 21 days.
Reported as:
Count of participants · Participants
Number of Participants With Dose Limiting Toxicities (DLT) [Phase I]
ParticipantsMCS110+ Trametinib + Dabrafenib
Number of Participants With Dose Limiting Toxicities (DLT) [Phase I]1
PrimaryMaximum Tolerated Dose of MCS110 [Phase I]

The trial used 3+3 design to determine maximum tolerated dose (MTD), escalating on 0/3 or 1/6 DLTs, and de-escalating if two DLTs were encountered. See subsequent primary outcome measure for the DLT definition. MTD was the highest dose level at which 0/3 or 1/6 subjects experienced a DLT.

Time frame:
Participants were followed up to 21 days.
Reported as:
Number · mg/kg
Maximum Tolerated Dose of MCS110 [Phase I]
mg/kgMCS110+ Trametinib + Dabrafenib
Maximum Tolerated Dose of MCS110 [Phase I]2.5
SecondaryOverall Response Rate (ORR) [Phase I]

ORR was defined as the percentage of participants achieving complete response (CR) or partial response (PR) on treatment based on RECIST 1.1 criteria. Per RECIST 1.1 for target lesions: CR is complete disappearance of all target lesions and PR is at least a 30% decrease in the sum of longest diameter (LD) of target lesions, taking as reference baseline sum LD. PR or better overall response assumes at a minimum incomplete response/stable disease (SD) for the evaluation of non-target lesions and absence of new lesions.

Time frame:
Participants were followed up to 30 months.
Reported as:
Number · percentage of participants
Overall Response Rate (ORR) [Phase I]
percentage of participantsMCS110+ Trametinib + Dabrafenib
Overall Response Rate (ORR) [Phase I]16.7 (1 to 58)
SecondaryMedian Progression Free Survival [Phase I]

PFS is defined as the duration of time from study entry to documented disease progression (PD) requiring removal from the study or death. Participants alive without PD were censored at the earliest of the date of the last disease evaluation or start of new anticancer therapy. Per RECIST 1.1 for target lesions: PD is at least a 20% increase in sum LD, taking as reference the smallest sum on study with at least 5 mm absolute increase. For non-target lesions, progression-free means no new lesions or unequivocal progression on existing non-target lesions or not evaluated.

Time frame:
Participants were followed up to 30 months.
Reported as:
Median · months
Median Progression Free Survival [Phase I]
monthsMCS110+ Trametinib + Dabrafenib
Median Progression Free Survival [Phase I]2.3 (1.3 to NA)
Post-hocGrade 3 Adverse Events Rate

Grade 3 adverse event (AE) rate was defined as the proportion of patients who experienced grade 3 adverse events based on Common Terminology Criteria for Adverse Events (CTCAE) version 4 (see standard source vocabulary as per AE module). Descriptions of severity (grade) are dependent on AE type with a scale of 1 (least severe) to 5. Please refer to https://ctep.cancer.gov/protocolDevelopment/electronic_applications/ctc.htm Per their definitions: Grade 1 Mild; asymptomatic or mild symptoms; clinical or diagnostic observations only; intervention not indicated. Grade 2 Moderate; minimal, local or noninvasive intervention indicated; limiting age-appropriate instrumental activities of daily living (ADL). Grade 3 Severe or medically significant but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; limiting self care ADL. Grade 4 Life-threatening consequences; urgent intervention indicated. Grade 5 Death related to AE.

Time frame:
Participants were followed up to 30 months.
Reported as:
Number · proportion of participants
Grade 3 Adverse Events Rate
proportion of participantsMCS110+ Trametinib + Dabrafenib
Grade 3 Adverse Events Rate0.83 (0.42 to 0.99)
Post-hocMedian Overall Survival (OS)

OS based on Kaplan-Meier method is defined as the time from registration to death due to any cause, or censored at date last known alive.

Time frame:
Participants were followed up to 30 months.
Reported as:
Median · months
Median Overall Survival (OS)
monthsMCS110+ Trametinib + Dabrafenib
Median Overall Survival (OS)5.3 (3.4 to NA)

Adverse events

Collected over Participants were followed up to 30 months.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
MCS110+ Trametinib + Dabrafenib [Phase I Dose Level I]3/6 (50%)1/6 (16.7%)6/6 (100%)
MCS110 + Trametinib + Dabrafenib Phase 2———
Most frequent serious events
Most frequent serious events
EventMCS110+ Trametinib + Dabrafenib [Phase I Dose Level I]MCS110 + Trametinib + Dabrafenib Phase 2
Alkaline phosphatase increasedInvestigations1/6—
Most frequent other events
Showing 10 of 74
Most frequent other events
EventMCS110+ Trametinib + Dabrafenib [Phase I Dose Level I]MCS110 + Trametinib + Dabrafenib Phase 2
Aspartate aminotransferase increasedInvestigations6/6—
FeverGeneral disorders5/6—
CPK increasedInvestigations5/6—
AnemiaBlood and lymphatic system disorders4/6—
DiarrheaGastrointestinal disorders4/6—
NauseaGastrointestinal disorders4/6—
VomitingGastrointestinal disorders4/6—
ChillsGeneral disorders4/6—
HypophosphatemiaMetabolism and nutrition disorders4/6—
FatigueGeneral disorders3/6—

Baseline characteristics

Zero patients were enrolled in the Phase 2 portion of this study.

Age, Continuous
Age, Continuous(years)MCS110+ Trametinib + Dabrafenib [Phase I Dose Level 1]MCS110 + Trametinib + Dabrafenib [Phase 2]Total
Mean53.7 ± 17.1—53.7 ± 17.1
Sex: Female, Male
Sex: Female, Male(Participants)MCS110+ Trametinib + Dabrafenib [Phase I Dose Level 1]MCS110 + Trametinib + Dabrafenib [Phase 2]Total
Female3—3
Male3—3
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)MCS110+ Trametinib + Dabrafenib [Phase I Dose Level 1]MCS110 + Trametinib + Dabrafenib [Phase 2]Total
Hispanic or Latino0—0
Not Hispanic or Latino6—6
Unknown or Not Reported0—0
Race (NIH/OMB)
Race (NIH/OMB)(Participants)MCS110+ Trametinib + Dabrafenib [Phase I Dose Level 1]MCS110 + Trametinib + Dabrafenib [Phase 2]Total
American Indian or Alaska Native0—0
Asian0—0
Native Hawaiian or Other Pacific Islander0—0
Black or African American0—0
White6—6
More than one race0—0
Unknown or Not Reported0—0
Region of Enrollment
Region of Enrollment(participants)MCS110+ Trametinib + Dabrafenib [Phase I Dose Level 1]MCS110 + Trametinib + Dabrafenib [Phase 2]Total
United States6—6
08

Study locations

1 site
  • Dana Farber Cancer Institute
    Boston, Massachusetts 02215, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Sep 2018 to primary completion in Sep 2023, 59 months.

Results were first posted in Jul 2024, 10 months after primary completion.

Of 85 non-industry phase 1/2 interventional studies under Melanoma, half reached primary completion within 59 months of starting (the median), counting those still running; a quarter within 47 and three quarters within 98. This study's 59 months is close to that.

Counting every sponsor, half of 220 studies reached it within 61 months; a quarter within 42 and three quarters within 85.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 28, 2018
First posted
Mar 7, 2018
StartActual
Sep 10, 2018
Primary completionActual
Sep 5, 2023
CompletionActual
Sep 5, 2023
Results first posted
Jul 31, 2024
Last update
Jul 31, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 31, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03455764
Collaborators
Novartis
Responsible party
Elizabeth Buchbinder, MD (Principal Investigator, Dana-Farber Cancer Institute) — Principal investigator
First posted
Mar 7, 2018
Start date
Sep 10, 2018
Primary completion
Sep 5, 2023
Completion
Sep 5, 2023
Results posted
Jul 31, 2024
Last update
Jul 31, 2024

Study contacts

Elizabeth I Buchbinder, MD
principal investigator · Dana-Farber Cancer Institute

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2024. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Lacnotuzumab

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