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Lung CancerPhase 2NCT04928950

Charcoal in Lung Cancer Patients Undergoing TEMLA

A Phase 2 study testing Activated charcoal in people with Lung Cancer, run by Masonic Cancer Center, University of Minnesota.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

This proof-of-concept study serves as the preliminary step to prove safety of oral activated charcoal (OAC) in patients with solid tumors before moving to a hematologic malignancy patient population. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Lung Cancer
What is being tested?
Activated charcoal
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
No sites listed yet
Study dates
26 Jan 2022to Jan 2025
Phase
Phase 2
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
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Suspected or confirmed diagnosis of lung cancer (non-small cell lung cancer, small-cell lung cancer or neuroendocrine tumor) for which a standard of care Transcervical Extended Mediastinal Lymphadenectomy (TEMLA) is planned
  • Planned pre-procedural IV antibiotic. The choice of antibiotic type is up to the treatment physician(s)
  • Able to safely hold all oral medications on the day of surgery and the day after to ensure the absorption of such drugs is not affected due to charcoal ingestion the night before surgery
  • 18 years of age or older
  • Able to provide written consent prior to any research related activities

Who cannot join

  • Current pregnancy or breastfeeding (SOC pre-TEMLA testing/assessment)
  • Any current diagnosed disease with known involvement of the gastrointestinal tract
  • Known allergy to oral activated charcoal
  • CTCAE v 5 Dysphagia Grade 2 (symptomatic and altered eating/swallowing) or greater
  • Known risk of aspiration based on history or current complaints
  • Gastrointestinal procedures within 2 weeks before or (planned) after TEMLA
  • Systemic antibiotic use within 8 weeks before planned TEMLA

About this study

Official title: Safety of Oral Activated Charcoal and Its Effect on the Gut Microbiome In Patients With Lung Cancer Undergoing Transcervical Extended Mediastinal Lymphadenectomy (TEMLA)

This proof-of-concept study serves as the preliminary step to prove safety of oral activated charcoal (OAC) in patients with solid tumors before moving to a hematologic malignancy patient population.

Read the detailed description

TEMLA (Transcervical Extended Mediastinal Lymphadenectomy) is a procedure for mediastinal lymph node sampling to stage patients with lung cancer. All patients receive a dose of IV antibiotic pre-procedure to prevent infection. The concept of the proposed study is to protect the gut microbiome against detrimental effects of the antibiotic using oral activated charcoal as a potent adsorbent with no absorption. Oral activated charcoal (OAC) binds to the fraction of IV antibiotic that reaches the lumen of the gut without interfering with its desired systemic effects. The conceptual goal is to prevent dysbiosis by protecting the gut microbiome. Dysbiosis is the leading cause of C. difficile infection and a number of other adverse clinical outcomes such as antibiotic resistance.

Conditions
Lung Cancer
Being tested
Activated charcoal
Keywords
Lung cancer, Activated charcoal, Gut microbiome, TEMLA
Medical subject headings
Lung Neoplasms, Anthrax

What participants receive

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

  • Activated charcoalDrug

    Also called Medical grade AC, "Activated Charcoal Powder, USP", activated carbon

    Activated Charcoal, Powder, USP is carbon that has been treated to create low-volume pores that increase the area available for chemical reactions and adsorption. The most common pharmaceutical uses of activated charcoal is as a purification agent and antitoxin. All Spectrum Chemical USP products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP) per 21CFR part 211 in FDA registered and inspected facilities.

Study groups in NCT04928950
Study groupRoleWhat they receive
Adults undergoing TEMLAExperimentalAdults undergoing TEMLA (Transcervical Extended Mediastinal Lymphadenectomy) take Oral Activated Charcoal (OAC) dissolved in apple juice a night before the surgery
Receives: Drug: Activated charcoal

What is being measured

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

  1. Number of patients who are free from analgesics within 3 days of TEMLA

    The duration of analgesic medication use after a standard of care Transcervical Extended Mediastinal Lymphadenectomy (TEMLA) is observed and the number of patients who are free from analgesics is reported

    Measured: 3 days after surgery

Secondary outcomes (4)
  1. Number of patients experiencing gastrointestinal adverse events

    Incidence of gastrointestinal AEs (nausea, vomiting, abdominal pain, bloating) within 5 days after ingesting charcoal

    Measured: 5 days after surgery

  2. Number of patients with C. difficile infection

    Incidence of C. difficile infection within 4 weeks after TEMLA

    Measured: 4 weeks after surgery

  3. Characterization of changes in microbiome diversity

    Stool microbiome diversity will be determined by 16S rRNA gene sequencing of samples. Analyses will include alpha and beta diversity, descriptive microbiota composition at the genus level, and comparing these indices between pre- and post- samples.

    Measured: pre-surgery and through study completion, 21-35 days after surgery

  4. Characterization of changes in microbiome composition

    Stool microbiome composition will be determined by 16S rRNA gene sequencing of samples.

    Measured: pre-surgery and through study completion , 21-35 days after surgery

Timeline

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

  1. First posted16 Jun 2021
  2. Study start26 Jan 2022
  3. Primary completionJan 2025 (estimated)
  4. Study completionJan 2025 (estimated)

Why it stopped: Because of logistic challenges and lack of product among other factors, we decided to completely withdrawn this study.

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 2
Primary purpose
Supportive care
Allocation
Not applicable
Intervention model
Single group
Model description
15 adults undergoing TEMLA enrolled in a 12-month period.
Masking
None (open label)
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04928950
Sponsor's protocol ID
2021LS022
Status last verified
Jan 2022
First submitted
4 Jun 2021
Last updated
9 Feb 2022
Results posted
No
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Activated charcoal in people with Lung Cancer, run by Masonic Cancer Center, University of Minnesota.

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 5 inclusion and 7 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: withdrawn, as of the sponsor's last update on 9 Feb 2022. Status can change between updates, so confirm with the study contact before making plans.

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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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 withdrawn before enrolling participants, so there are no results.

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?

Number of patients who are free from analgesics within 3 days of TEMLA (time frame: 3 days after surgery). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 9 Feb 2022.

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