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Sleep Disorders, Circadian RhythmPhase 2NCT03205033

Melatonin as a Circadian Clock Regulator, Neuromodulator and Myelo-protector in Adjuvant Breast Cancer Chemotherapy

A Phase 2 study testing Melatonin 20 MG Oral Capsule in people with Sleep Disorders, Circadian Rhythm and Depression, run by Hospital de Clinicas de Porto Alegre.

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

Breast cancer is the second most common cancer in the world, the most common in women, representing the leading cause of death in Brazil. The therapeutic approach for breast cancer includes surgery, radiotherapy, chemotherapy and endocrine therapy. Read more about this study

Who is it for?
Ages 18 to 75 years, women only
What is being tested?
Melatonin 20 MG Oral Capsule
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
36 participants
Where
No sites listed yet
Study dates
Jan 2016to Jan 2017
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 to 75 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Female
  • Diagnosed with breast cancer
  • Indicated for the adjuvant treatment for breast cancer
  • Between 18 years and 75 years
  • Alphabetized

Who cannot join

  • Undergone chemotherapy or radiotherapy before inclusion in the study.
  • Pregnant
  • Epilepsy
  • Brain Stroke
  • Multiple sclerosis
  • BMI above 45 kg / m 2

About this study

Official title: Melatonin as a Circadian Clock Regulator, Neuromodulator and Myelo-protector in Adjuvant Breast Cancer Chemotherapy: a Randomized, Double-blind, Placebo-controlled Trial.

Breast cancer is the second most common cancer in the world, the most common in women, representing the leading cause of death in Brazil. The therapeutic approach for breast cancer includes surgery, radiotherapy, chemotherapy and endocrine therapy. Chemotherapy courses with side effects because the cytotoxic effects affect indistinctly neoplastic cells and normal cells. The cancer per se may promote disruption in circadian rhythm. Chemotherapy induces or enhances desynchronization of the sleep-wake cycle, which competes with impaired memory, mood, pain and poor quality of life. Melatonin is an attractive therapeutic option in this context. This neurohormone also has immunomodulatory, co-analgesic and anti-depressant properties. Additionally, the antioxidant properties of melatonin may decrease free radical formation, reducing damage to DNA. The objective is to assess the response to melatonin as a synchronizer of the sleep-wake rhythm, neuromodulator, and mieloprotetor genoprotetor in the effects induced by chemotherapy in women with breast cancer.

Read the detailed description

This is a randomized, double-blind clinical trial, parallel, placebo-controlled trial. Breast cancer women treated surgically and with indication for adjuvant chemotherapy, aged between 18 and 75 years will be included. Patients will be randomized to receive 20mg of melatonin or placebo at bedtime. Treatment will initiate seven days before the start of chemotherapy to three days after the first cycle, totaling ten days. The sleep-wake rhythm will be assessed by actigraphy, which use will precede three days to start treatment. We will also evaluate the sleep-wake cycle by sleep diary. Other parameters will be measured as depressive symptoms, pain threshold pressure, effect on platelets and white series, the pain response to conditioned stimuli and quality of life. Serum markers of neuroplasticity will be measured as the Derivate Nerve Factor Brain BDNF and S100 β. The icronucleus effect will quantified by cell material from the oral mucosa. We expect that the use of melatonin, as a competitor to chemotherapy and synchronizer, improves tolerance to adjuvant treatment of breast cancer chemotherapy adverse effects.

Being tested
Melatonin 20 MG Oral Capsule, Placebo oral capsule
Keywords
Melatonin, Breast cancer, Chemotherapy, Sleep-wake rhytms, Circadian rhythms
Medical subject headings
Sleep Disorders, Circadian Rhythm, Depression, Pain, Breast Neoplasms

What participants receive

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

  • Melatonin 20 MG Oral CapsuleDrug

    Also called MTN

    1 capsule/day 1 hour before go to bed

  • Placebo oral capsuleDrug

    Also called PCB

    1 capsule/day 1 hour before go to bed

Study groups in NCT03205033
Study groupRoleWhat they receive
MelatoninActive comparatorMelatonin 20 mg Oral Capsules, once a day at bedtime
Receives: Drug: Melatonin 20 MG Oral Capsule
PlaceboPlacebo comparatorPlacebo Oral Capsules, once a day at bedtime
Receives: Drug: Placebo oral capsule

What is being measured

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

  1. To evaluate the response to melatonin as a sleep-wake rhythm synchronizer on the effects induced by chemotherapy in women with breast cancer.

    Actigraphy to assess the circadian rhythm

    Measured: 1 capsule of melatonin 20 mg or Placebo capsule, once a day, 1 hour before go to bed

Timeline

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

  1. First posted2 Jul 2017
  2. Study startJan 2016
  3. Primary completionJan 2017
  4. Study completionJan 2017

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
36 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03205033
Sponsor's protocol ID
14-0701
Status last verified
Jan 2017
First submitted
28 Jun 2017
Last updated
2 Jul 2017
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Palmer ACS, Souza A, Dos Santos VS, Cavalheiro JAC, Schuh F, Zucatto AE, Biazus JV, Torres ILDS, Fregni F, Caumo W. The Effects of Melatonin on the Descending Pain Inhibitory System and Neural Plasticity Markers in Breast Cancer Patients Receiving Chemotherapy: Randomized, Double-Blinded, Placebo-Controlled Trial. Front Pharmacol. 2019 Nov 22;10:1382. doi: 10.3389/fphar.2019.01382. eCollection 2019.

    PubMed 31824318

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Melatonin 20 MG Oral Capsule in people with Sleep Disorders, Circadian Rhythm and Depression, run by Hospital de Clinicas de Porto Alegre.

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 6 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 2 Jul 2017. 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. 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 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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

To evaluate the response to melatonin as a sleep-wake rhythm synchronizer on the effects induced by chemotherapy in women with breast cancer. (time frame: 1 capsule of melatonin 20 mg or Placebo capsule, once a day, 1 hour before go to bed). 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 NCT03205033, 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 2 Jul 2017.

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