AzTrials
AzTrials

Prostatic NeoplasmsPhase 1DOPNCT03066154

Oral Docetaxel (ModraDoc/r) in Combination With Hormonal Treatment and Radiation Therapy in High-risk Prostate Cancer

A Phase 1 study testing oral docetaxel (ModraDoc/r), androgen deprivation therapy and high-dose intensity-modulated radiation therapy in people with Prostatic Neoplasms, run by The Netherlands Cancer Institute at 1 site in Netherlands.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
Search all trials

Trial summary

The optimal treatment for HRPC patients has not yet been established. Recent trials suggest a benefit from early treatment with docetaxel in the castration-sensitive setting, with an improvement in failure free survival in high risk and metastatic patients and increase in overall survival in the metastatic… Read more about this study

Who is it for?
Ages 18 years and older, men only
Conditions the study is for
Prostatic Neoplasms
What is being tested?
oral docetaxel (ModraDoc/r), androgen deprivation therapy and high-dose intensity-modulated radiation therapy
Could I receive a placebo?
No, everyone receives an active treatment
How many people
24 participants
Where
1 siteNetherlands
Study dates
Sep 2016to Aug 2022
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Histologically proven prostate cancer.
  • All eligible patients have hormone naïve non-metastatic node positive high risk prostate cancer. Node positive cancer will be defined as radiological demonstration of more than four pelvic lymph node(s) consisting of bean shaped lymph node(s) with a short axis of minimal 10 mm and/or round lymph node(s) with a minimal size of 8 mm on PSMA, MRI or CT scan.
  • PSMA-scans or PET-Choline scans may be used, but are not obligated. Since the use of the PSMA scan is significantly increased in current clinical practice and the chance of false positive results is considered very low in patients with more than 4 positive lymph nodes, histological confirmation of positive lymph nodes is not required for inclusion if more than 4 pathological nodes are seen with the PSMA, MRI or CT scan
  • High risk prostate cancer will be defined as node positive with all of the following primary tumour characteristics: Tumour stage ≥cT2c and Gleason score ≥4+3, any PSA
  • Age ≥ 18 years
  • No signs of metastatic disease on standard diagnostic scans.
Show all 18Show fewer
  • Normal serum testosterone levels prior to treatment
  • Adequate haematological, renal and hepatic functions
  • Haemoglobin ≥ 6.0 mmol/l
  • ANC of ≥ 1.5 x 109 /L
  • Platelet count of ≥ 100 x 109 /L
  • Hepatic function as defined by serum bilirubin ≤ 1.5 x ULN, ALAT and ASAT ≤ 2.5 x ULN
  • Renal function as defined by serum creatinine ≤ 1.5 x ULN or creatinine clearance ≥ 50 ml/min (by Cockcroft-Gault formula).
  • WHO performance status of 0-2
  • Able and willing to undergo blood sampling for PK and PD analysis;
  • Life expectancy ≥ 3 months allowing adequate follow up of toxicity evaluation and antitumor activity;
  • Able and willing to swallow oral medication
  • Able and willing to give written informed consent;

Who cannot join

  • Any treatment with investigational drugs, chemotherapy or immunotherapy within 30 days prior to receiving the first dose of investigational treatment; Patients may be on ADT as long as this is has not been longer than 4 weeks prior the start of the radiotherapy.
  • Patients who have had prior pelvic radiation therapy
  • Patients who have had prior treatment with taxanes
  • TURP within 3 months before start of the study
  • Patients who have had a prostatectomy.
  • Any contra-indication for MRI
Show all 16Show fewer
  • Major difficulties for marker implantation
  • Unreliable contraceptive methods. Men enrolled in this trial must agree to use a reliable contraceptive method throughout the study (adequate contraceptive methods are: condom, sterilization)
  • Unresolved (> grade 1) toxicities of previous chemotherapy, excluding alopecia.
  • Uncontrolled infectious disease or known Human Immunodeficiency Virus HIV-1 or HIV-2 type patients;
  • Patients with a known history of hepatitis B or C;
  • Bowel obstructions or motility disorders that may influence the resorption of drugs as judged by the treating physician
  • Concomitant use of MDR and CYP3A modulating drugs such as Ca+- entry blockers (verapamil, dihydropyridines), cyclosporine, quinidine, tamoxifen, megestrol and grapefruit juice, concomitant use of HIV medications, other protease inhibitors, (non) nucleoside analoga, or St. John's wort.
  • Pre-existing neuropathy greater than NCI-CTCAE v4.03 grade 1.
  • Patients with known alcoholism, drug addiction and/or psychiatric of physiological condition which in the opinion of the investigator would impair study compliance; Evidence of any other disease, neurological or metabolic dysfunction, physical examination finding or laboratory finding giving reasonable suspicion of a disease or condition that contraindicates the use of an investigational drug or puts the patient at high risk for treatment-related complications.
  • Legal incapacity

Trial locations and contacts

1 site in 1 country.

Netherlands1 site
  • Netherlands Cancer Institute

    Amsterdam

Other trials in Netherlands

About this study

Official title: Weekly ModraDoc/r in Combination With Hormonal Treatment and High-dose Intensity-modulated Radiation Therapy in Patients With High-risk Early Stage Prostate Cancer

The optimal treatment for HRPC patients has not yet been established. Recent trials suggest a benefit from early treatment with docetaxel in the castration-sensitive setting, with an improvement in failure free survival in high risk and metastatic patients and increase in overall survival in the metastatic hormone-sensitive group. In these recent randomized controlled trials, patients were treated with hormonal therapy and radiotherapy and adjuvant docetaxel, assuming that early systemic treatment for high risk or metastatic disease could delay progression in patients with aggressive primary tumor characteristics.

With the fact that docetaxel is a known radiosensitizer, combined modality treatment with docetaxel during the radiotherapy could also lead to better local control and reduction of local recurrence. Several phase I and II studies have been done in HRPC patients, to evaluate the combination of high dose radiotherapy and concurrent weekly infusions with docetaxel.

Read more

Oral administration of docetaxel has many advantages above intravenously administered drugs for patients. Besides the higher patient convenience, possibly longer treatment duration can be achieved due to better safety. Frequently occurring toxicities of intravenously administered docetaxel, such as neutropenia, hypersensitivity reactions and peripheral polyneuropathy have rarely been observed with the oral docetaxel formulation ModraDoc006/r.

The primary aim of the N15DOP study is to determine the maximum tolerable dose (MTD) of ModraDoc006/r when given in a weekly bidaily schedule in combined modality with high dose intensity radiotherapy and hormonal therapy in castration-sensitive prostate cancer patients with high risk disease, including positive lymph nodes.

Read the detailed description

Phase IA part This is an open-label, dose-escalating, non-randomized, single centre phase I study of ModraDoc006/r combined with ADT and radiotherapy in patients with high risk prostate cancer, as defined by node positive prostate cancer with all of the following primary tumor characteristics: stage ≥cT2c, Gleason score ≥ 4+3, any PSA level.

Phase IB part After determination of the MTD of ModraDoc006/r in the combined treatment with radiotherapy and hormonal therapy and good tolerability of the treatment without unexpected adverse events during the radiotherapy until 6 weeks after the end of radiotherapy, the study will be further conducted to the phase IB part. This part will explore the feasibility and tolerability of long term treatment with ModraDoc006/r.

Being tested
oral docetaxel (ModraDoc/r), androgen deprivation therapy, high-dose intensity-modulated radiation therapy
Keywords
High risk prostate cancer, >T2cN+M0
Medical subject headings
Prostatic Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • oral docetaxel (ModraDoc/r)Drug

    Also called ModraDoc006/ritonavir

    Weekly once- or twice daily ModraDoc/r

  • androgen deprivation therapyDrug

    Also called hormonal therapy

    ADT according to the standard of care

  • high-dose intensity-modulated radiation therapyRadiation

    Also called radiotherapy

    77 Gy in 35 fractions of 2.2 Gy, 5 fractions a week

Study groups in NCT03066154
Study groupRoleWhat they receive
N15DOPExperimentalChemoradiation with ModraDoc/r and radiotherapy of the prostate in dose escalation design, followed by maintenance treatment.
Receives: Drug: oral docetaxel (ModraDoc/r); Drug: androgen deprivation therapy; Radiation: high-dose intensity-modulated radiation therapy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Maximal tolerated dose (MTD) of ModraDoc/r in the combination treatment

    MTD of ModraDoc006/r (as ModraDoc006 10 mg tablets in combination with one tablet of 100 mg ritonavir) that can safely be administered in a bi-daily weekly schedule in combination with high-dose intensity modulated radiation therapy and androgen-deprivation therapy

    Measured: 12 months

Secondary outcomes (4)
  1. Number of participants with treatment-related adverse events as assessed by CTCAE v.4.03 with treatment with ModraDoc006/r in combination with ADT and high dose radiotherapy

    Number of participants with treatment-related adverse events as assessed by CTCAE

    Measured: 12 months

  2. Number of patients that will have recurrence of prostate cancer after completion of the study treatment

    Number of patients that will have recurrence of prostate cancer after completion of the study treatment

    Measured: 10 years

  3. Peak Plasma Concentration (Cmax) of docetaxel in this regime.

    Peak Plasma Concentration (Cmax) of docetaxel in this regime.

    Measured: 12 months

  4. Area under the plasma concentration versus time curve (AUC) of docetaxel in this regime.

    Area under the plasma concentration versus time curve (AUC) of docetaxel in this regime.

    Measured: 12 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 Feb 2017
  2. Study startSep 2016
  3. Primary completionFeb 2022
  4. Study completionAug 2022

Why it stopped: low inclusion of patients and availability of the IP

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
24 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03066154
Sponsor's protocol ID
N15DOP
Acronym
DOP
Status last verified
May 2024
First submitted
23 Sep 2016
Last updated
3 Jun 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Vermunt MAC, van der Heijden LT, Hendrikx JJMA, Schinkel AH, de Weger VA, van der Putten E, van Triest B, Bergman AM, Beijnen JH. Pharmacokinetics of docetaxel and ritonavir after oral administration of ModraDoc006/r in patients with prostate cancer versus patients with other advanced solid tumours. Cancer Chemother Pharmacol. 2021 Jun;87(6):855-869. doi: 10.1007/s00280-021-04259-5. Epub 2021 Mar 20.

    PubMed 33744986

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing oral docetaxel (ModraDoc/r), androgen deprivation therapy and high-dose intensity-modulated radiation therapy in people with Prostatic Neoplasms, run by The Netherlands Cancer Institute at 1 site in Netherlands.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 18 inclusion and 16 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 3 Jun 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Netherlands. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: low inclusion of patients and availability of the IP). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Maximal tolerated dose (MTD) of ModraDoc/r in the combination treatment (time frame: 12 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03066154, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Jun 2024.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in