ClinicalTrials.gg
CompletedNCT03411161Updated May 25, 2021

S 81694 Plus Paclitaxel in Metastatic Breast Cancer

A Phase 1/2 interventional study of Combination therapy (S81694 + paclitaxel) phase I and Paclitaxel in Metastatic Breast Cancer and Metastatic Triple Negative Breast Cancer, sponsored by Institut de Recherches Internationales Servier. Completed at 6 sites in 4 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-05-25.

Primary conditionTriple Negative Breast NeoplasmsRegistry: Breast NeoplasmsReclassifiedWhy we changed it
Registry
Breast Neoplasms — the first condition term the registry derived for this study.
ClinicalTrials.gg
Triple Negative Breast Neoplasms
Why
  1. The study's listed conditions name Triple Negative Breast Neoplasms, a narrower term within Breast Neoplasms.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Institut de Recherches Internationales Servier · Phase 1/2, Interventional, and Treatment

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Phase
Phase 1/2
Study type
Interventional
Enrollment
22
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 66 studies in Triple Negative Breast Neoplasms with a site in Belgium — 12 open to participants now, 26 under way, 9 of them phase 3. Triple Negative Breast Neoplasms · Belgium.

Enrollment
62nd of 66
22 · median 165
Started
2018
with 7 others
Phase 1/2
14 of 66
2 open now
Registered
29th of 66
by date

Among the 66 studies in Triple Negative Breast Neoplasms with a site in Belgium, this one is the 62nd largest by enrollment, is one of 8 that started in 2018, is one of 14 in phase 1/2, and was the 29th registered.

Triple Negative Breast Neoplasms

1,219 studies on the registry are indexed under Triple Negative Breast Neoplasms; 445 are open to participants now.

Browse Triple Negative Breast Neoplasms studies →

Open to participants now

12 of the 66 studies in Triple Negative Breast Neoplasms with a site in Belgium are open now. Recruiting first, the newest first:

7 more — sign in →

All 12 open studies →

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

Who these studies take

Of the 331 Triple Negative Breast Neoplasms studies recruiting now, 231 (70%) set no upper age limit and 85 (26%) stop at 75 or younger; 12 take children under 18; 6 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 66 studies in Triple Negative Breast Neoplasms with a site in Belgium, or all of them as a file.
02

Study summary

The purpose of this study is to determine the safety profile, the maximum tolerated dose (MTD) and the associated dose-limiting toxicities (DLTs) of S 81694 in combination with paclitaxel in metastatic breast cancer (mBC) patients, and to investigate the antitumour activity of the combination in metastatic triple negative breast cancer (mTNBC) patients.

03

Conditions studied

  • Metastatic Breast Cancer
  • Metastatic Triple Negative Breast Cancer

Browse trials for

Keywords

  • Mps1
  • Mps1i
  • S81694
  • breast cancer
  • triple negative breast cancer
  • phase I
  • phase II
04

In context

Triple Negative Breast Neoplasms Reclassified

1,219 studies on the registry are indexed under Triple Negative Breast Neoplasms; 445 are open to participants now.

This study's enrollment of 22 is below the median of 60 across 1,053 interventional studies indexed under Triple Negative Breast Neoplasms.

Browse Triple Negative Breast Neoplasms studies →

Lead sponsor

Institut de Recherches Internationales Servier is the lead sponsor of 67 studies on the registry; 4 are open to participants now.

Of its 18 completed or terminated interventional studies of FDA-regulated products, 9 (50%) have results posted.

Compared within Triple Negative Breast Neoplasms, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Breast Neoplasms. The counts are of registry records indexed under each term, refreshed daily. How we classify →

05

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 Phase I :

  • or cytologically confirmed breast cancer, to any standard therapy or for which the standard therapy is considered unsuitable;
  • Patient must have at least one evaluable or measurable metastatic lesion (lesions as defined by revised ).

For Phase II :

  • Histologically or cytologically confirmed advanced inoperable triple negative breast cancer with no prior anticancer therapy regimen in metastatic setting;
  • Patient with a minimum of 12 months following previous taxane based therapy;
  • Patient must have at least one measurable metastatic lesion. Ascites, pleural effusion, and bone metastases are not considered measurable;
  • Acceptance of pre-treatment metastatic for all patients and on-treatment metastatic biopsies in selected centres.

For the whole study:

  • Male or female subjects aged ≥ 18 years old, or legal age of the majority in the country;
  • (ECOG) performance status of 0 or 1;
  • Estimated of at least 3 months;
  • Adequate haematological function based on the last assessment performed within 7 days prior to the first IMP ( medicinal product) administration;
  • Adequate renal function based on the last assessment performed within 7 days prior to the first IMP administration;
  • Adequate hepatic function based on the last assessment performed within 7 days prior to the first IMP administration;
  • Female participant of must have a negative pregnancy test (serum) within 7 days prior to the first day of test drug administration. Effective both for female patients of childbearing potential and male patients with parteners of childbearing potential.

Exclusion criteria

Exclusion Criteria:

  • Other active within the last 3 years (except for basal cell carcinoma or a non-invasive/in situ cervical cancer or intra-mucosal gastro-intestinal cancers that were treated curatively);
  • Presence of grade ≥ 2 toxic effects (excluding alopecia) due to prior cancer therapy;
  • Known to the IMP (S 81694 and paclitaxel) or their ;
  • Evidence of peripheral neuropathy of grade 2 or higher;
  • Participant previously received paclitaxel and discontinued due to toxicity related to paclitaxel;
  • Participant known as to taxanes;
  • Any prior cancer therapy within 4 weeks or 5 half-life (whichever is the shorter) before the first IMP administration;
  • Participant with current, serious, uncontrolled infections;
  • Participant with or (except patients with brain metastasis that have been stable post-radiation therapy and who are off for > 2 months);
  • History of cardiac disease;
  • Uncontrolled arterial hypertension;
  • Presence of risk factors for torsades de pointes (e.g. heart failure, hypokalaemia, family history of long syndrome);
  • Any medical condition (e.g. organ dysfunction) or laboratory abnormality likely to jeopardize the patient's safety or to interfere with the conduct of the study, in the investigator's opinion.
Terms in these criteria, in plain language(20)

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.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

RECIST

The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.

“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

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.

Adjuvant and neoadjuvant

Neoadjuvant treatment is given before the main treatment (usually surgery), often to shrink a tumour. Adjuvant treatment is given after it, to lower the chance of the cancer coming back.

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.

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.

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.

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.

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.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

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.

Leptomeningeal disease

Cancer that has spread to the leptomeninges, the thin layers covering the brain and spinal cord, and the fluid between them. It is not the same as brain metastases.

Criteria often treat it separately, and many studies leave it out even where treated brain metastases are allowed.

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.

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.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

06

Study design

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

Study arms

  • Experimental
    Combination therapy (S81694 + paclitaxel) phase I

    Phase I: Single arm, non-randomized study in metastatic breast cancer patients. S81694 given intravenously every two weeks at different doses on D1 and D15 last for 28 days. The participants will also receive paclitaxel intravenously on D1, D8 and D15 last for 28 days.

    Drug: Combination therapy (S81694 + paclitaxel) phase I

  • Active comparator
    paclitaxel phase II

    Phase II: Randomised phase II part , two-arm, in untreated metastatic triple negative breast cancer patients. Paclitaxel given intravenously on D1, D8, and D15 at 80 mg/m² during a 28-day cycle.

    Drug: Paclitaxel

  • Experimental
    Combination therapy (S81694 + paclitaxel) phase II

    Phase II: Randomised phase II part , two-arm, in untreated metastatic triple negative breast cancer patients. S 81694 given intravenously on D1 and D15 at recommended phase 2 dose (RP2D). Paclitaxel given intravenously on D1, D8, and D15 during a 28-day cycle.

    Drug: Combination therapy (S81694 + paclitaxel) phase II

Interventions

  • DrugCombination therapy (S81694 + paclitaxel) phase I

    Dose escalation S 81694 (IV); paclitaxel started at 80 mg/m²,(IV)

  • Paclitaxel (IV) at 80 mg/m²/week

  • DrugCombination therapy (S81694 + paclitaxel) phase II

    S 81694 (IV) at RP2D; paclitaxel (IV) at 80 mg/m²/week

07

What researchers measure

Primary outcomes

  1. Incidence of DLTs (dose-limiting toxicities)

    Safety criterion - A DLT is defined as any toxicity attributable to S81694 or the combination that occurs before the end of Cycle 1

    Time frame: Through study completion, an average of 4 years

  2. Safety and tolerability assessed by incidence of Adverse Events

    Safety and tolerability criteria - Incidence of treatment-emergent adverse events (AEs) graded according to NCI CTCAE v4.03

    Time frame: Through study completion, an average of 4 years

  3. Abnormalities in laboratory tests (haematology, blood biochemistry and urinalysis)

    Safety and tolerability criteria disease progression according to RECIST v1.1 or death due to any cause

    Time frame: Through study completion, an average of 4 years

  4. Abnormalities in physical examination and performance status (ECG) (mm/s)

    Safety and tolerability criteria

    Time frame: Through study completion, an average of 4 years

  5. Abnormalities in blood pressure (mmHg)

    Safety and tolerability criteria - Treatment-emergent changes in physical examinations, ECOG performance status, at periodic intervals during the study and at End of Treatment

    Time frame: Through study completion, an average of 4 years

  6. Abnormalities in heart rate (BPM (beat per minute))

    Safety and tolerability criteria - Treatment-emergent changes in physical examinations, ECOG performance status, at periodic intervals during the study and at End of Treatment

    Time frame: Through study completion, an average of 4 years

  7. Abnormalities in body temperature (C°degree celsius)

    Safety and tolerability criteria - Treatment-emergent changes in physical examinations, ECOG performance status, at periodic intervals during the study and at End of Treatment

    Time frame: Through study completion, an average of 4 years

  8. Abnormalities in respiration rate (cycles per minute)

    Safety and tolerability criteria - Treatment-emergent changes in physical examinations, ECOG performance status, at periodic intervals during the study and at End of Treatment

    Time frame: Through study completion, an average of 4 years

  9. Abnormalities in body weight (Kg)

    Safety and tolerability criteria - Treatment-emergent changes in physical examinations, ECOG performance status, at periodic intervals during the study and at End of Treatment

    Time frame: Through study completion, an average of 4 years

  10. Progression free survival (PFS) [based on Investigator review of the images according to RECIST 1.1]

    Efficacy criterion - time from the date of first study drug intake until the date of the investigator-assessed disease progression or death due to any cause whichever occurs first.

    Time frame: Through study completion, an average of 4 years

Secondary outcomes

  1. The PK (pharmacokinetic) profile of S 81694 and paclitaxel plasma concentration : Area under the plasma concentration-time curve (AUC)

    Safety and tolerability criteria

    Time frame: Through study completion, an average of 3 years

  2. The PK profile of S 81694 and paclitaxel plasma concentration : Elimination half-life (T½)

    Safety and tolerability criteria

    Time frame: Through study completion, an average of 3 years

  3. The PK profile of S 81694 and paclitaxel plasma concentration : Maximum plasma concentration (Cmax)

    Safety and tolerability criteria

    Time frame: Through study completion, an average of 3 years

  4. The PK profile of S 81694 and paclitaxel plasma concentration : Minimum plasma concentration (Cmin)

    Safety and tolerability criteria

    Time frame: Through study completion, an average of 3 years

  5. Overall Response Rate (ORR) [ based on Investigator review of the images according to RECIST 1.1]

    Efficacy criterion

    Time frame: Through study completion, an average of 4 years

  6. Incidence of treatment-emergent adverse events (AEs) graded according to NCI CTCAE v4.03

    Safety criterion

    Time frame: Through study completion, an average of 4 years

08

Study locations

6 sites
  • Institut Jules Bordet Clinique Oncologie Médicale
    Bruxelles, 1000, Belgium
  • UZ Leuven Campus Gasthuisberg Dept. of General Medical
    Leuven, 3000, Belgium
  • Institut de Cancérologie de l'Ouest site Saint Herblain
    Saint Herblain, 44805, France
  • Chiba cancer center Breast surgery
    Chiba, 2608717, Japan
  • Osaka International Cancer Institute
    Osaka, 5418567, Japan
  • Erasmus MC Section Clinical Pharmacology
    Rotterdam, 30145, Netherlands
09

References and documents

Individual participant data

Plan to share: Yes — Qualified scientific and medical researchers can request access to anonymized patient-level and study-level clinical trial data. Access can be requested for all interventional clinical studies: used for Marketing Authorization (MA) of medicines and new indications approved after 1 January 2014 in the European Economic Area (EEA) or the United States (US). where Servier is the Marketing Authorization Holder (MAH). The date of the first MA of the new medicine (or the new indication) in one of the EEA Member States will be considered for this scope. In addition, access can be requested for all interventional clinical studies in patients: sponsored by Servier with a first patient enrolled as of 1 January 2004 onwards for New Chemical Entity or New Biological Entity (new pharmaceutical form excluded) for which development has been terminated before any Marketing authorization (MA) approval.

Supporting information: Study protocol, Statistical analysis plan, Informed consent form, Clinical study report

Time frame: After Marketing Authorisation in EEA or US if the study is used for the approval.

Access criteria: Researchers should register on Servier Data Portal and fill in the research proposal form. This form in four parts should be fully documented. The Research Proposal Form will not be reviewed until all mandatory fields are completed.

Data sharing details ↗ · clinicaltrials.servier.com

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 Jan 2018 to primary completion in Jun 2020, 29 months.

Of 118 phase 1/2 interventional studies under Triple Negative Breast Neoplasms, half reached primary completion within 56 months of starting (the median), counting those still running; a quarter within 43 and three quarters within 79. This study's 29 months is below that.

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

Registered
Dec 13, 2017
First posted
Jan 26, 2018
StartActual
Jan 4, 2018
Primary completionActual
Jun 8, 2020
CompletionActual
Jun 8, 2020
Last update
May 25, 2021
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 May 25, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03411161
Lead sponsor
Institut de Recherches Internationales Servier
Collaborators
ADIR, a Servier Group company
Responsible party
Sponsor
First posted
Jan 26, 2018
Start date
Jan 4, 2018
Primary completion
Jun 8, 2020
Completion
Jun 8, 2020
Last update
May 25, 2021

Study contacts

Mario CAMPONE, Pr
principal investigator · Institut de Cancérologie de l'Ouest site Saint Herblain

Oversight

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

Not currently enrolling

This study is completed, as verified in May 2021. You cannot join it, but the record below documents what was studied.

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