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Metastatic or Locally Advanced Unresectable Pancreatic AdenocarcinomaPhase 3MAESTRONCT01746979

Clinical Trial Testing TH-302 in Combination With Gemcitabine in Previously Untreated Subjects With Metastatic or Locally Advanced Unresectable Pancreatic Adenocarcinoma

A Phase 3 study testing TH-302 and Gemcitabine in people with Metastatic or Locally Advanced Unresectable Pancreatic Adenocarcinoma, run by ImmunoGenesis at 2 sites in 2 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This Phase 3 trial is a randomized, double-blind, placebo-controlled trial of gemcitabine in combination with TH-302 compared to gemcitabine in combination with placebo in subjects with locally advanced unresectable or metastatic pancreatic adenocarcinoma. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
TH-302 and Gemcitabine
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
693 participants
Where
2 sitesin 2 countries
Study dates
Dec 2012to May 2016
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

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
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • At least 18 years of age
  • Locally advanced unresectable or metastatic pancreatic ductal adenocarcinoma proven by histology or cytology and previously untreated with chemotherapy or systemic therapy other than:
  • Radiosensitizing doses of 5-fluorouracil;
  • Radiosensitizing doses of gemcitabine if relapse occurred at least 6 months after completion of gemcitabine;
  • Neoadjuvant chemotherapy if relapse occurred at least 6 months after surgical resection;
  • Adjuvant chemotherapy if relapse occurred at least 6 months after completion of adjuvant chemotherapy
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  • Measurable disease (at least one target lesion outside of previous radiation fields) or non-measurable disease by RECIST v.1.1 criteria
  • Documentation of disease progression since any prior therapy
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
  • Life expectancy of at least 3 month
  • Acceptable liver, renal function and acceptable hematological status
  • Other protocol defined inclusion criteria may apply

Who cannot join

  • New York Heart Association (NYHA) Class III or IV congestive heart failure, myocardial infarction within 6 months prior to the date of randomization, unstable arrhythmia or symptomatic peripheral arterial vascular disease
  • Symptomatic ischemic heart disease
  • Known brain, leptomeningeal or epidural metastases (unless treated and well controlled for at least 3 months)
  • Previous malignancy other than pancreatic cancer in the last 5 years, except for adequately treated non-melanoma skin cancer or pre-invasive cancer of the cervix
  • Severe chronic obstructive or other pulmonary disease with hypoxemia
  • Major surgery, other than diagnostic surgery, less than or equal to 28 days prior to the date of randomization. Subject must have completely recovered from surgery
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  • Active, uncontrolled bacterial, viral, or fungal infections, requiring systemic therapy
  • Treatment of pancreatic cancer with radiation therapy or surgery less than or equal to 28 days prior to the date of randomization
  • Prior therapy with a hypoxic cytotoxin
  • Subjects who participated in an investigational drug or device trial less than or equal to 28 days prior to Day 1 of the first cycle
  • Known infection with Human Immunodeficiency Virus (HIV), or an active infection with Hepatitis B or Hepatitis C
  • Subjects who have exhibited allergic reactions to a structural compound similar to TH-302 or the drug product excipients or to gemcitabine or its excipients
  • Other protocol defined exclusion criteria may apply

Trial locations and contacts

2 sites in 2 countries.

2 sites in 2 countries

United States1 site
  • Please Contact U.S. Medical Information

    Rockland, Massachusetts

Other trials in United States

Germany1 site
  • Please Contact Merck Communication Center

    Darmstadt

Other trials in Germany

About this study

Official title: A Randomized, Double-Blind, Phase III Study of the Efficacy and Safety of Gemcitabine in Combination With TH-302 Compared With Gemcitabine in Combination With Placebo in Previously Untreated Subjects With Metastatic or Locally Advanced Unresectable Pancreatic Adenocarcinoma

This Phase 3 trial is a randomized, double-blind, placebo-controlled trial of gemcitabine in combination with TH-302 compared to gemcitabine in combination with placebo in subjects with locally advanced unresectable or metastatic pancreatic adenocarcinoma. Randomized subjects will receive TH-302 plus gemcitabine or gemcitabine plus placebo in 4-week cycles until there is evidence of progressive disease, intolerable toxicity, or the subject discontinues from the trial for other reasons (for example, withdrawal of consent). The primary efficacy endpoint is overall survival (OS) time. The data cut-off for statistical analyses of the primary and secondary endpoints will be reached when 508 events (deaths) will be reported. No planned interim analyses will be conducted. An Independent Safety Monitoring Board (ISMB) will provide periodic evaluations of the unblinded safety data to ensure subject safety and the validity and scientific merit of the study. A total of 660 subjects will be enrolled.

Being tested
TH-302, Gemcitabine, Placebo (5 percent dextrose - D5W)
Keywords
TH-302, Evofosfamide, Pancreatic Cancer, EMR200592-001
Medical subject headings
Neoplasm Metastasis, Pancreatic Neoplasms

What participants receive

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

  • TH-302Drug

    TH-302 will be administered at a dose of 340 milligrams per square meter (mg/m^2) as intravenous infusion over 30 minutes on Day 1, 8 and 15 of every 28-day cycle. Doses will be administered until evidence of progressive disease, intolerable toxicity or subject withdrawal.

  • GemcitabineDrug

    Gemcitabine will be administered at a dose of 1000 (mg/m^2) as intravenous infusion over 30 minutes on Day 1, 8 and 15 of every 28-day cycle. Doses will be administered until evidence of progressive disease, intolerable toxicity or subject withdrawal.

  • Placebo (5 percent dextrose - D5W)Drug

    TH-302 placebo (5 percent dextrose - D5W) will be administered as intravenous infusion over 30 minutes on Day 1, 8 and 15 of every 28-day cycle. Doses will be administered until evidence of progressive disease, intolerable toxicity or subject withdrawal.

Study groups in NCT01746979
Study groupRoleWhat they receive
Gemcitabine plus TH-302Active comparatorNot described
Receives: Drug: TH-302; Drug: Gemcitabine
Gemcitabine plus placeboPlacebo comparatorNot described
Receives: Drug: Gemcitabine; Drug: Placebo (5 percent dextrose - D5W)

What is being measured

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

  1. Overall Survival

    Overall survival is defined as time from randomization to death or last day known to be alive.

    Measured: From date of randomization until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 2 years

Secondary outcomes (1)
  1. Progression Free Survival

    Progression Free Survival is defined as the time from randomization to either first observation of progressive disease or occurrence of death. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions.

    Measured: From date of randomization until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 2 years

Timeline

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

  1. First posted11 Dec 2012 (estimated)
  2. Study startDec 2012
  3. Primary completionFeb 2016
  4. Study completionMay 2016

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
693 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01746979
Sponsor's protocol ID
EMR 200592-001
Other IDs
2012-002957-42
Acronym
MAESTRO
Status last verified
Oct 2017
First submitted
7 Dec 2012
Last updated
11 May 2025
Data monitoring committee
Yes

Publications

  • Borad MJ, Reddy SG, Bahary N, Uronis HE, Sigal D, Cohn AL, Schelman WR, Stephenson J Jr, Chiorean EG, Rosen PJ, Ulrich B, Dragovich T, Del Prete SA, Rarick M, Eng C, Kroll S, Ryan DP. Randomized Phase II Trial of Gemcitabine Plus TH-302 Versus Gemcitabine in Patients With Advanced Pancreatic Cancer. J Clin Oncol. 2015 May 1;33(13):1475-81. doi: 10.1200/JCO.2014.55.7504. Epub 2014 Dec 15.

    PubMed 25512461

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing TH-302 and Gemcitabine in people with Metastatic or Locally Advanced Unresectable Pancreatic Adenocarcinoma, run by ImmunoGenesis at 2 sites in 2 countries.

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 12 inclusion and 13 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: finished, as of the sponsor's last update on 11 May 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States, Germany. 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. Some participants in this study may receive a placebo. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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

Are results available for this study?

Yes. Results are posted in the registry (first posted 2 Dec 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Overall Survival (time frame: From date of randomization until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 2 years). 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 NCT01746979, 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 11 May 2025.

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