ClinicalTrials.gg
Active, not recruitingNCT07821229MCarb-TUpdated Sep 15, 2026

Combination of Mitomycin and Carboplatin in Neoadjuvant Therapy in BRCA-associated Triple-negative Locally Advanced Breast Cancer

An interventional study of Neoadjuvant Chemotherapy (NACT) and Neoadjuvant Chemotherapy (NACT) in Breast Cancer (Early Breast Cancer), BRCA 1 Gene Mutation and BRCA 2 Gene Mutation, sponsored by N.N. Petrov National Medical Research Center of Oncology. Active, not recruiting at 1 site in Russia. Open to female participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2026-09-15.

Sponsored by N.N. Petrov National Medical Research Center of Oncology · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 3 years 7 months after the study started (first participant enrolled Sep 2022, registered May 2026).
Phase
Not applicable
Study type
Interventional
Enrollment
30
Allocation
Randomized
Ages
18 Years to 70 Years
Sex
Female
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 79 studies in Breast Neoplasms with a site in Russia — 12 open to participants now, 48 under way, 24 of them phase 3. Breast Neoplasms · Russia.

Planned enrollment
53rd of 64
30 · median 246
Started
2022
with 5 others
No phase
8 of 79
4 open now
Primary completion
2030-12
later than 45 of 47 live
Registered
76th of 79
by date
Lead sponsor
4 of 79
N.N. Petrov National Medical Research Center of Oncology

Among the 79 studies in Breast Neoplasms with a site in Russia, this one is the 53rd largest by planned enrollment of the 64 interventional ones that give a count, is one of 6 that started in 2022, is one of 8 with no phase, reaches primary completion later than 45 of the 47 other live ones, and was the 76th registered.

Breast Neoplasms

14,825 studies on the registry are indexed under Breast Neoplasms; 3,319 are open to participants now.

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Open to participants now

12 of the 79 studies in Breast Neoplasms with a site in Russia are open now. Recruiting first, the newest first:

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All 12 open studies →

A study can be open while its sites in Russia have not opened yet or have stopped. Only those recruiting at a site in Russia →

Who these studies take

Of the 2,400 Breast Neoplasms studies recruiting now, 1,572 (66%) set no upper age limit and 591 (25%) stop at 75 or younger; 103 take children under 18; 214 take healthy volunteers.

This study: 18 Years to 70 Years · female · no healthy volunteers.

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02

Study summary

This study was designed to evaluate the safety and efficacy of neoadjuvant therapy with mitomycin and carboplatin in patients with BRCA-associated locally advanced triple-negative breast cancer.

Read the detailed description

The study includes two groups: one is an experimental group receiving chemotherapy according to the MCarb-T regimen, which is compared to a control group treated with the standard AC-TCarb regimen. To participate in this study, patients must have histologically confirmed triple-negative breast cancer (TNBC) in a locally advanced stage and a germline BRCA1 or BRCA2 mutation. All patients with TNBC undergo BRCA1/BRCA2 mutation testing before starting treatment, using either polymerase chain reaction (PCR) or next-generation sequencing (NGS).

Patients in the experimental group receive 4 cycles of neoadjuvant chemotherapy with the MCarb regimen (mitomycin + carboplatin AUC5), followed by 12 weekly doses of paclitaxel. Patients in the control group receive 4 cycles of neoadjuvant chemotherapy with the AC regimen (doxorubicin + cyclophosphamide), followed by 12 weekly administrations of the TCarb regimen (paclitaxel + carboplatin AUC2).

Clinical assessment is performed after cycles 2 and 4 of MCarb/AC, as well as after completion of the 12 weekly doses of T/ TCarb, with response evaluation according to RECIST 1.1 criteria.

Upon completion of cytotoxic chemotherapy, patients undergo surgical treatment. Resected specimens are evaluated using the Miller-Payne grading system and the Residual Cancer Burden (RCB) classification to determine the efficacy of systemic therapy.

To assess the safety of neoadjuvant systemic therapy, the frequency and nature of adverse events are recorded during treatment using the NCI CTCAE version 5.0 criteria. As part of the study protocol, complete blood counts with differential and platelet counts (Fonio method) were performed every 7 days, while blood biochemistry, urinalysis, and coagulation tests were carried out every 14 days.

After completion of protocol therapy, patients were followed to assess disease status every 3 months during the first year and every 6 months thereafter. Monitoring included physical examination, ultrasound of the breasts and regional lymph nodes, mammography, contrast-enhanced computed tomography of the chest and abdomen, ultrasound or contrast-enhanced magnetic resonance imaging of the pelvis, and bone scintigraphy.

03

Conditions studied

  • Breast Cancer (Early Breast Cancer)
  • BRCA 1 Gene Mutation
  • BRCA 2 Gene Mutation

Keywords

  • BRCA-associated triple-negative early breast cancer
  • mitomycin
  • germline mutation BRCA1, BRCA2
04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
Female
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

  1. Signed to participate in the study;
  2. Histopathological confirmation of triple-negative breast cancer;
  3. Stage: clinical T1-T4, N0-3, M0;
  4. Positive molecular genetic test for BRCA1\|2 gene mutation (PCR test or NGS result);
  5. Age > 18 years;
  6. status 0-1.

Exclusion criteria

Exclusion Criteria:

  1. Prior administration of any systemic therapy for breast cancer;
  2. Stage IV disease;
  3. Severe uncontrolled chronic comorbidities or acute illnesses;
  4. Renal dysfunction;
  5. Age > 70 years;
  6. Presence of a second malignant tumor (except for previously cured );
  7. Pregnancy or breastfeeding;
  8. Negative molecular genetic test for BRCA1\|2 gene mutation
Terms in these criteria, in plain language(3)

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.

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.

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.

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.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
30 participants (estimated)

Study arms

  • Experimental
    MCarb - T (mitomycin + carboplatin, paclitaxel)

    mitomycin at a dose of 10 mg/m2, carboplatin AUC5, paclitaxel 80 mg/m2

    Procedure: Neoadjuvant Chemotherapy (NACT)

  • Active comparator
    AC - TCarb (doxorubicin + cyclophosphamide, paclitaxel + carboplatin)

    doxorubicin at a dose of 60 mg/m2, cyclophosphamide 600 mg/m2, paclitaxel 80 mg/m2, carboplatin AUC2

    Procedure: Neoadjuvant Chemotherapy (NACT)

Interventions

  • ProcedureNeoadjuvant Chemotherapy (NACT)

    neoadjuvant chemotherapy according to the regimen of mitomycin in combination with carboplatin, followed by paclitaxel

  • ProcedureNeoadjuvant Chemotherapy (NACT)

    neoadjuvant chemotherapy according to the AC regimen, followed by paclitaxel in combination with carboplatin

06

What researchers measure

Primary outcomes

  1. Pathomorphological response

    The pathological response assessment will be performed within 14 days after definitive breast surgery. The Miller-Payne grading system will be used to assess the pathological response in the surgical specimen by comparing residual invasive tumor cellularity with the pretreatment core needle biopsy specimen. The Residual Cancer Burden (RCB) will be assessed using the surgical specimens from the breast and regional lymph nodes and will also be calculated within 14 days after surgery.

    Time frame: From enrollment to pathological assessment (after surgery) from 6 to 7 months

Secondary outcomes

  1. Adverse events incidence

    Adverse events during chemotherapy are any undesirable symptoms, conditions, or diseases that occur in a patient during or after chemotherapy and may be related to its toxic effects.

    Time frame: Until 30 days after last patient treatment visit

  2. Response rate

    To assess the objective response rate (OR) by RECIST v1.1 2.

    Time frame: At the end of Cycle 2 (each cycle consists of 28 days). At the end of Cycle 4 (each cycle consists of 28 days). At the end of Cycle 6 (each cycle consists of 7 days). At the end of Cycle 12 (each cycle consists of 7 days).

  3. overall and disease-free survival

    Overall survival (OS) refers to the length of time from either the date of diagnosis or the start of treatment that patients are still alive. It is a key endpoint in clinical trials, measuring the effectiveness of a treatment in extending life. Disease-free survival (DFS) is the length of time after primary treatment during which a patient remains free of any signs or symptoms of the cancer. It is used to measure how well a treatment prevents recurrence.

    Time frame: "through study completion, an average of 1 year"

07

Study locations

1 site
08

References and documents

Individual participant data

Plan to share: Yes

Supporting information: Clinical study report

No publications or documents are linked to this record.

09

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

Started Sep 2022 (actual). Primary completion is estimated for Dec 2030, 98 months after the start.

Of 2,661 non-industry interventional studies with no phase under Breast Neoplasms, half reached primary completion within 33 months of starting (the median), counting those still running; a quarter within 16 and three quarters within 66. This study's planned 98 months is above that.

Counting every sponsor, half of 2,771 studies reached it within 33 months; a quarter within 15 and three quarters within 66.

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

Registered
May 6, 2026
First posted
Sep 15, 2026
StartActual
Sep 27, 2022
Primary completionEst.
Dec 1, 2030
CompletionEst.
Dec 1, 2030
Last update
Sep 15, 2026
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 Sep 15, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07821229
Lead sponsor
N.N. Petrov National Medical Research Center of Oncology
Responsible party
Sponsor
First posted
Sep 15, 2026
Start date
Sep 27, 2022
Primary completion
Dec 1, 2030 (estimated)
Completion
Dec 1, 2030 (estimated)
Last update
Sep 15, 2026

Oversight

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

Not currently enrolling

This study is active, not recruiting, as verified in Sep 2026. You cannot join it, but the record below documents what was studied.

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