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Clinical Trial Details — Status: Enrolling by invitation

Administrative data

NCT number NCT04234776
Other study ID # rampty2805
Secondary ID
Status Enrolling by invitation
Phase Phase 4
First received
Last updated
Start date April 3, 2018
Est. completion date April 3, 2021

Study information

Verified date December 2019
Source University of Sao Paulo
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The treatment of resistant depression should be optimized aiming at complete remission of symptoms, a complex condition due to several factors. Approximately 1/3 of patients with depressive disorders do not even respond to available antidepressants. Consequently, new molecules with robust action, fast effects and sustained improvement are currently being researched worldwide. Ketamine, an N-methyl-D-aspartate (NMDA) receptor antagonist, has emerged as a promising alternative due to its involvement in neurogenesis, synaptogenesis and consequent rapid improvement of depressive and suicidal symptoms with traditional intravenous (IV) use in sub dose (0.5 mg / kg). The therapeutic response of IV use has been short and requires monitoring in a hospital setting. There are no studies evaluating response to long-term ketamine use. Recent research has focused on identifying other routes of ketamine use such as intranasal and intramuscular (IM). The use of ketamine IM, despite the fact that there are few studies and small samples, can demonstrate efficacy in acute treatment and maintenance of depression, as well as low profile of side effects, greater accessibility potential, reduced costs and risks, patient comfort and possible expansion of resistant depression treatment capabilities in different settings.


Description:

Compare the response of ketamine IM versus active control in treatment-resistant depression (TRD [primary outcome]) and find safety and tolerability of ketamine IM, evaluate changes in life quality, cognition and suicidal risk (secondary outcomes)


Recruitment information / eligibility

Status Enrolling by invitation
Enrollment 88
Est. completion date April 3, 2021
Est. primary completion date June 3, 2020
Accepts healthy volunteers No
Gender All
Age group 18 Years to 40 Years
Eligibility Inclusion Criteria:

1. Diagnosis of TRD, according to clinical evaluation and confirmed by SCID-IV (Structured Clinical Interview for the DSM);

2. Moderate to severe intensity of the disease;

3. Female patients in fertile conditions should be using a clinically accepted contraceptive method (oral contraceptive and/or condom);

a. Blood test will be requested at the diagnostic stage and in case of clinical doubt as to the patient's gestational status,

4. Literate and able to understand the tasks requested;

5. With clinical comorbidities, however compensated;

6. Patients and/or legal representatives should understand the nature of the study and sign the Informed Consent Form.

Exclusion Criteria:

1. Imminent risk of suicide;

2. Patients with psychoactive substance dependence;

3. Intellectual deficit and psychotic symptoms;

4. Bipolar spectrum disorders and other primary psychiatric diagnoses;

5. Allergic to ketamine;

6. Glaucoma;

7. Treatment with reversible MAOI (monoamine oxidase inhibitor) in the week prior to visit 0;

8. Treatment with irreversible MAOI in two weeks prior to visit 0;

9. Fluoxetine treatment within 4 weeks prior to visit 0;

10. Treatment with others antidepressants;

11. Treatment with antipsychotics, lithium, benzodiazepines or other psychotropic drugs within 7 days prior to visit 0;

a. Lorazepam and zolpidem may be used;

12. Patients who become pregnant will be excluded from the study and referred for obstetric care.

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Ketamine
(0,75 mg/kg) saline solution (15 mg) Escitalopram (5 mg) Aripiprazole
Diagnostic Test:
Cognition
Composite tools
Other:
Suicide risk
MADRS (10) and HAM-D (3)
Depression thoughts
EPD
Quality of life and disability
Quality of life and disability
Clinical and epidemiological factors
Variables and categories
Device:
Safety of ketamine IM
Vital signs
Other:
Tolerability of ketamine IM
UKU-SERS, YOUNG, CADSS and BPRS-12.

Locations

Country Name City State
Brazil Núcleo de Pesquisas em Saúde Mental Blumenau Santa Catarina

Sponsors (1)

Lead Sponsor Collaborator
University of Sao Paulo

Country where clinical trial is conducted

Brazil, 

References & Publications (46)

aan het Rot M, Collins KA, Murrough JW, Perez AM, Reich DL, Charney DS, Mathew SJ. Safety and efficacy of repeated-dose intravenous ketamine for treatment-resistant depression. Biol Psychiatry. 2010 Jan 15;67(2):139-45. doi: 10.1016/j.biopsych.2009.08.038 — View Citation

Akinfiresoye L, Tizabi Y. Antidepressant effects of AMPA and ketamine combination: role of hippocampal BDNF, synapsin, and mTOR. Psychopharmacology (Berl). 2013 Nov;230(2):291-8. doi: 10.1007/s00213-013-3153-2. Epub 2013 Jun 4. — View Citation

Bennabi D, Aouizerate B, El-Hage W, Doumy O, Moliere F, Courtet P, Nieto I, Bellivier F, Bubrovsky M, Vaiva G, Holztmann J, Bougerol T, Richieri R, Lancon C, Camus V, Saba G, Haesbaert F, d'Amato T, Charpeaud T, Llorca PM, Leboyer M, Haffen E. Risk factor — View Citation

Berman RM, Cappiello A, Anand A, Oren DA, Heninger GR, Charney DS, Krystal JH. Antidepressant effects of ketamine in depressed patients. Biol Psychiatry. 2000 Feb 15;47(4):351-4. — View Citation

Bonanno G, Giambelli R, Raiteri L, Tiraboschi E, Zappettini S, Musazzi L, Raiteri M, Racagni G, Popoli M. Chronic antidepressants reduce depolarization-evoked glutamate release and protein interactions favoring formation of SNARE complex in hippocampus. J — View Citation

Caddy C, Giaroli G, White TP, Shergill SS, Tracy DK. Ketamine as the prototype glutamatergic antidepressant: pharmacodynamic actions, and a systematic review and meta-analysis of efficacy. Ther Adv Psychopharmacol. 2014 Apr;4(2):75-99. doi: 10.1177/204512 — View Citation

Daly EJ, Singh JB, Fedgchin M, Cooper K, Lim P, Shelton RC, Thase ME, Winokur A, Van Nueten L, Manji H, Drevets WC. Efficacy and Safety of Intranasal Esketamine Adjunctive to Oral Antidepressant Therapy in Treatment-Resistant Depression: A Randomized Clin — View Citation

Duman RS, Li N, Liu RJ, Duric V, Aghajanian G. Signaling pathways underlying the rapid antidepressant actions of ketamine. Neuropharmacology. 2012 Jan;62(1):35-41. doi: 10.1016/j.neuropharm.2011.08.044. Epub 2011 Sep 2. Review. — View Citation

Dwyer JM, Duman RS. Activation of mammalian target of rapamycin and synaptogenesis: role in the actions of rapid-acting antidepressants. Biol Psychiatry. 2013 Jun 15;73(12):1189-98. doi: 10.1016/j.biopsych.2012.11.011. Epub 2013 Jan 4. Review. — View Citation

Erratum: Acute Antidepressant Effects of Intramuscular Versus Intravenous Ketamine: Erratum. Indian J Psychol Med. 2015 Jul-Sep;37(3):379. doi: 10.4103/0253-7176.162911. — View Citation

Evans-Lacko S, Knapp M. Global patterns of workplace productivity for people with depression: absenteeism and presenteeism costs across eight diverse countries. Soc Psychiatry Psychiatr Epidemiol. 2016 Nov;51(11):1525-1537. Epub 2016 Sep 26. — View Citation

Ferrari AJ, Charlson FJ, Norman RE, Patten SB, Freedman G, Murray CJ, Vos T, Whiteford HA. Burden of depressive disorders by country, sex, age, and year: findings from the global burden of disease study 2010. PLoS Med. 2013 Nov;10(11):e1001547. doi: 10.13 — View Citation

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Green SM, Hummel CB, Wittlake WA, Rothrock SG, Hopkins GA, Garrett W. What is the optimal dose of intramuscular ketamine for pediatric sedation? Acad Emerg Med. 1999 Jan;6(1):21-6. — View Citation

Haas DA, Harper DG. Ketamine: a review of its pharmacologic properties and use in ambulatory anesthesia. Anesth Prog. 1992;39(3):61-8. Review. — View Citation

Hare BD, Ghosal S, Duman RS. Rapid Acting Antidepressants in Chronic Stress Models: Molecular and Cellular Mechanisms. Chronic Stress (Thousand Oaks). 2017 Feb;1. doi: 10.1177/2470547017697317. Epub 2017 Apr 10. — View Citation

Hillhouse TM, Porter JH. A brief history of the development of antidepressant drugs: from monoamines to glutamate. Exp Clin Psychopharmacol. 2015 Feb;23(1):1-21. doi: 10.1037/a0038550. Review. — View Citation

Kennedy SH, Lam RW, McIntyre RS, Tourjman SV, Bhat V, Blier P, Hasnain M, Jollant F, Levitt AJ, MacQueen GM, McInerney SJ, McIntosh D, Milev RV, Müller DJ, Parikh SV, Pearson NL, Ravindran AV, Uher R; CANMAT Depression Work Group. Canadian Network for Moo — View Citation

Lapidus KA, Levitch CF, Perez AM, Brallier JW, Parides MK, Soleimani L, Feder A, Iosifescu DV, Charney DS, Murrough JW. A randomized controlled trial of intranasal ketamine in major depressive disorder. Biol Psychiatry. 2014 Dec 15;76(12):970-6. doi: 10.1 — View Citation

Lepine BA, Moreno RA, Campos RN, Couttolenc BF. Treatment-resistant depression increases health costs and resource utilization. Braz J Psychiatry. 2012 Dec;34(4):379-88. — View Citation

Li N, Liu RJ, Dwyer JM, Banasr M, Lee B, Son H, Li XY, Aghajanian G, Duman RS. Glutamate N-methyl-D-aspartate receptor antagonists rapidly reverse behavioral and synaptic deficits caused by chronic stress exposure. Biol Psychiatry. 2011 Apr 15;69(8):754-6 — View Citation

Loo CK, Gálvez V, O'Keefe E, Mitchell PB, Hadzi-Pavlovic D, Leyden J, Harper S, Somogyi AA, Lai R, Weickert CS, Glue P. Placebo-controlled pilot trial testing dose titration and intravenous, intramuscular and subcutaneous routes for ketamine in depression — View Citation

Machado MO, Veronese N, Sanches M, Stubbs B, Koyanagi A, Thompson T, Tzoulaki I, Solmi M, Vancampfort D, Schuch FB, Maes M, Fava GA, Ioannidis JPA, Carvalho AF. The association of depression and all-cause and cause-specific mortality: an umbrella review o — View Citation

McGirr A, Berlim MT, Bond DJ, Fleck MP, Yatham LN, Lam RW. A systematic review and meta-analysis of randomized, double-blind, placebo-controlled trials of ketamine in the rapid treatment of major depressive episodes. Psychol Med. 2015 Mar;45(4):693-704. d — View Citation

McIntyre RS, Filteau MJ, Martin L, Patry S, Carvalho A, Cha DS, Barakat M, Miguelez M. Treatment-resistant depression: definitions, review of the evidence, and algorithmic approach. J Affect Disord. 2014 Mar;156:1-7. doi: 10.1016/j.jad.2013.10.043. Epub 2 — View Citation

Millan MJ, Goodwin GM, Meyer-Lindenberg A, Ove Ögren S. Learning from the past and looking to the future: Emerging perspectives for improving the treatment of psychiatric disorders. Eur Neuropsychopharmacol. 2015 May;25(5):599-656. doi: 10.1016/j.euroneur — View Citation

Mrazek DA, Hornberger JC, Altar CA, Degtiar I. A review of the clinical, economic, and societal burden of treatment-resistant depression: 1996-2013. Psychiatr Serv. 2014 Aug 1;65(8):977-87. doi: 10.1176/appi.ps.201300059. Review. — View Citation

Murrough JW, Iosifescu DV, Chang LC, Al Jurdi RK, Green CE, Perez AM, Iqbal S, Pillemer S, Foulkes A, Shah A, Charney DS, Mathew SJ. Antidepressant efficacy of ketamine in treatment-resistant major depression: a two-site randomized controlled trial. Am J — View Citation

Murrough JW, Perez AM, Pillemer S, Stern J, Parides MK, aan het Rot M, Collins KA, Mathew SJ, Charney DS, Iosifescu DV. Rapid and longer-term antidepressant effects of repeated ketamine infusions in treatment-resistant major depression. Biol Psychiatry. 2 — View Citation

Naughton M, Clarke G, O'Leary OF, Cryan JF, Dinan TG. A review of ketamine in affective disorders: current evidence of clinical efficacy, limitations of use and pre-clinical evidence on proposed mechanisms of action. J Affect Disord. 2014 Mar;156:24-35. d — View Citation

Newport DJ, Carpenter LL, McDonald WM, Potash JB, Tohen M, Nemeroff CB; APA Council of Research Task Force on Novel Biomarkers and Treatments. Ketamine and Other NMDA Antagonists: Early Clinical Trials and Possible Mechanisms in Depression. Am J Psychiatr — View Citation

Niciu MJ, Luckenbaugh DA, Ionescu DF, Guevara S, Machado-Vieira R, Richards EM, Brutsche NE, Nolan NM, Zarate CA Jr. Clinical predictors of ketamine response in treatment-resistant major depression. J Clin Psychiatry. 2014 May;75(5):e417-23. doi: 10.4088/ — View Citation

Perlis RH. A clinical risk stratification tool for predicting treatment resistance in major depressive disorder. Biol Psychiatry. 2013 Jul 1;74(1):7-14. doi: 10.1016/j.biopsych.2012.12.007. Epub 2013 Feb 4. — View Citation

Philip NS, Carpenter LL, Tyrka AR, Price LH. Pharmacologic approaches to treatment resistant depression: a re-examination for the modern era. Expert Opin Pharmacother. 2010 Apr;11(5):709-22. doi: 10.1517/14656561003614781. Review. — View Citation

Rasmussen KG. Has psychiatry tamed the "ketamine tiger?" Considerations on its use for depression and anxiety. Prog Neuropsychopharmacol Biol Psychiatry. 2016 Jan 4;64:218-24. doi: 10.1016/j.pnpbp.2015.01.002. Epub 2015 Jan 10. Review. — View Citation

Reich DL, Silvay G. Ketamine: an update on the first twenty-five years of clinical experience. Can J Anaesth. 1989 Mar;36(2):186-97. Review. — View Citation

Rush AJ, Trivedi MH, Wisniewski SR, Nierenberg AA, Stewart JW, Warden D, Niederehe G, Thase ME, Lavori PW, Lebowitz BD, McGrath PJ, Rosenbaum JF, Sackeim HA, Kupfer DJ, Luther J, Fava M. Acute and longer-term outcomes in depressed outpatients requiring on — View Citation

Sanacora G, Treccani G, Popoli M. Towards a glutamate hypothesis of depression: an emerging frontier of neuropsychopharmacology for mood disorders. Neuropharmacology. 2012 Jan;62(1):63-77. doi: 10.1016/j.neuropharm.2011.07.036. Epub 2011 Aug 3. Review. — View Citation

Sanacora G, Zarate CA, Krystal JH, Manji HK. Targeting the glutamatergic system to develop novel, improved therapeutics for mood disorders. Nat Rev Drug Discov. 2008 May;7(5):426-37. doi: 10.1038/nrd2462. Review. — View Citation

Saveanu R, Etkin A, Duchemin AM, Goldstein-Piekarski A, Gyurak A, Debattista C, Schatzberg AF, Sood S, Day CV, Palmer DM, Rekshan WR, Gordon E, Rush AJ, Williams LM. The international Study to Predict Optimized Treatment in Depression (iSPOT-D): outcomes — View Citation

Shiroma PR, Johns B, Kuskowski M, Wels J, Thuras P, Albott CS, Lim KO. Augmentation of response and remission to serial intravenous subanesthetic ketamine in treatment resistant depression. J Affect Disord. 2014 Feb;155:123-9. doi: 10.1016/j.jad.2013.10.0 — View Citation

Singh JB, Fedgchin M, Daly EJ, De Boer P, Cooper K, Lim P, Pinter C, Murrough JW, Sanacora G, Shelton RC, Kurian B, Winokur A, Fava M, Manji H, Drevets WC, Van Nueten L. A Double-Blind, Randomized, Placebo-Controlled, Dose-Frequency Study of Intravenous K — View Citation

Spielmans GI, Berman MI, Linardatos E, Rosenlicht NZ, Perry A, Tsai AC. Adjunctive atypical antipsychotic treatment for major depressive disorder: a meta-analysis of depression, quality of life, and safety outcomes. PLoS Med. 2013;10(3):e1001403. doi: 10. — View Citation

Stahl SM. Mechanism of action of ketamine. CNS Spectr. 2013 Aug;18(4):171-4. doi: 10.1017/S109285291300045X. — View Citation

Vasavada MM, Leaver AM, Espinoza RT, Joshi SH, Njau SN, Woods RP, Narr KL. Structural connectivity and response to ketamine therapy in major depression: A preliminary study. J Affect Disord. 2016 Jan 15;190:836-841. doi: 10.1016/j.jad.2015.11.018. Epub 20 — View Citation

Zarate CA Jr, Brutsche N, Laje G, Luckenbaugh DA, Venkata SL, Ramamoorthy A, Moaddel R, Wainer IW. Relationship of ketamine's plasma metabolites with response, diagnosis, and side effects in major depression. Biol Psychiatry. 2012 Aug 15;72(4):331-8. doi: — View Citation

* Note: There are 46 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Primary Change in depressive symptoms Montomery-Åsberg Depression Rating Scale ([0-60] higher scores: worse outcome). No improvement: MADRS = 25% Partial response: MADRS = 25% and < 50% Response: MADRS = 50% Remission: MADRS =10 3 times a week in once month (Phase II)
Primary Change in depressive symptoms Montgomery-Åsberg Depression Rating Scale ([0-60] higher scores: worse outcome).
Recovery: Maintenance = 6-8 months Relapse: Full return of symptoms once remission has occurred or worsening = 75% with lower percentage of improvement (HAM-D inclusion criteria)
Once a week in six months (Phase III)
Primary Change in depressive symptoms Montgomery-Åsberg Depression Rating Scale ([0-60] higher scores: worse outcome).
Relapse: Full return of symptoms once remission has occurred or worsening = 75% with lower percentage of improvement (HAM-D inclusion criteria).
Once a week in once month (Phase IV)
Secondary Depression symptoms Hamiltom Depression Ratins Scale (HAM-D [0-50] higher scores: worse outcome). Through study completion, an average of 1 year.
Secondary Clinical impressions-S Clinical Global Impression Scale (CGI [0-7] higher scores: worse outcome). Through study completion, an average of 1 year.
Secondary Clinical impressions-I Clinical Global Impression Scale (CGI [0-7] higher scores: worse outcome). Through study completion, an average of 1 year.
Secondary Electrocardiographic monitoring P wave, PR interval, QRS complex, J-point, ST segment, T wave, Corrected QT interval and U wave Rhythm (irregular rhythm: worse outcome). 3 times a week in once month (Fase II) and once a week in six months (Phase III)
Secondary Blood Pressure (BP [mmHg]). BP low <90/60 (systolic/diastolic) mmHg and high >140/90 mmHg ( (systolic/diastolic). 3 times a week in once month (Fase II) and once a week in six months (Phase III)
Secondary Heart rate (HR [bpm]). Anormal HR <60 bpm or >100 bpm. 3 times a week in once month (Fase II) and once a week in six months (Phase III)
Secondary Digital pulse oximetry (%). Low oxygen saturation <95%. 3 times a week in once month (Fase II) and once a week in six months (Phase III)
Secondary Respiratory rate (RR [cycles/min]) Anormal RR <10 cycles/min or >20 cycles/min. 3 times a week in once month (Fase II) and once a week in six months (Phase III)
Secondary Suicide risk 1 Montgomery-Åsberg Depression Rating Scale (item 10 [0-6] higher scores: worse outcome). Through study completion, an average of 1 year.
Secondary Suicide risk 2 Hamilton Depression Rating Scale (item 3 [0-4] higher scores: worse outcome). Through study completion, an average of 1 year.
Secondary General side effects Ugvalg for Kliniske Undersgelser-Side Effect Rating Scale (UKU-SERS [48 specific symptoms). 3 times a week in once month (Phase II) and once a week in six months (Phase III)
Secondary Hypo/maniac symptoms Young Mania Rating Scale (YOUNG [0-58] higher scores: worse outcome). 3 times a week in once month (Phase II) and once a week in six months (Phase III)
Secondary Dissociative symptoms Clinician-Administered Dissociative State Scale (CADSS [0-108] higher scores: worse outcome) 3 times a week in once month (Phase II) and once a week in six months (Phase III)
Secondary Psychotic symptoms Brief Psychiatric Rating Scale (item 12 [0-6] higher scores: worse outcome). 3 times a week in once month (Phase II) and once a week in six months (Phase III)
Secondary Depression thoughts Depression Thoughts Scale (EPD [1-78] higher scores: worse outcome) Through study completion, an average of 1 year.
Secondary Stimate intelligence quocient Wechsler Abreviated Scale of Intelligence (WASI [70-160 percentille] higher scores: better outcomes). Through study completion, an average of 1 year.
Secondary Intelligence quocient Wechsler Scale of Intelligence (WAIS III [70-155 percentille] higher scores: better outcomes). Through study completion, an average of 1 year.
Secondary Attention Trial Making Test (5-95 percentille, higher scores: better outcomes). Through study completion, an average of 1 year.
Secondary Memory Rey figures (10-100 percentille, higher scores: better outcomes) Through study completion, an average of 1 year.
Secondary Executive functions 1 Wisconsin Test (50->80 score, higher scores: better outcomes). Through study completion, an average of 1 year.
Secondary Executive functions 2 Stroop Color Word Test (5-95 percentille, higher scores: better outcomes) Through study completion, an average of 1 year.
Secondary Verbal fluency 1 Verbal Fluency Test (FAS [10-90 percentille], higher scores: better outcomes)) Through study completion, an average of 1 year.
Secondary Verbal fluency 2 The Rey Auditory-Verbal Learning Test (RAVLT [5-95 percentille], higher scores: better outcomes). Through study completion, an average of 1 year.
Secondary Functional recovery 1 World Health Organization Quality of Life (WHOQOL-brief [4 domains, 26 questions higher scores: better outcome]). Through study completion, an average of 1 year.
Secondary Functional recovery 2 Sheehan Disability Scale (SDS [0-30] higher scores: worse outcome). Through study completion, an average of 1 year.
Secondary Body Mass Index (BMI) Weight and height (kg/m2). Through study completion, an average of 1 year.
Secondary Clinical and psychiatric features 1 Disease intensity (HAM-D [% of patients], moderate or severe) Through study completion, an average of 1 year.
Secondary Clinical and psychiatric features 2 Number of episodes (questionnaire [incidence]) Through study completion, an average of 1 year.
Secondary Clinical and psychiatric features 3 Current episode duration (questionnaire [years]) Through study completion, an average of 1 year.
Secondary Clinical and psychiatric features 4 Suicide attempts (questionnaire [% of pacients]) Through study completion, an average of 1 year.
Secondary Clinical and psychiatric features 5 History of physical abuse (questionnaire [% of pacients]) Through study completion, an average of 1 year.
Secondary Clinical and psychiatric features 6 History of sexual abuse (questionnaire [% of pacients]) Through study completion, an average of 1 year.
Secondary Clinical and psychiatric features 7 Psychiatric hospitalizations (questionnaire [% of pacients]) Through study completion, an average of 1 year.
Secondary Clinical and psychiatric features 8 Clinical comorbidities (questionnaire [% of patients]). Through study completion, an average of 1 year.
Secondary Clinical and psychiatric features 9 Family history of depression (questionnaire [% of patients]) Through study completion, an average of 1 year.
Secondary Clinical and psychiatric features 10 Family history of bipolar disorders (questionnaire [% of patients) Through study completion, an average of 1 year.
Secondary Clinical and psychiatric features 11 Family history of other mental disorders (questionnaire [% of patients]). Through study completion, an average of 1 year.
Secondary Epidemiological features 1 Age (questionnaire [years]). Through study completion, an average of 1 year.
Secondary Epidemiological features 2 Gender (questionnaire [% of patients]; male/female) Through study completion, an average of 1 year.
Secondary Epidemiological features 3 Marital status (questionnaire [% of patients] single, married, separated, divorced or widower). Through study completion, an average of 1 year.
Secondary Epidemiological features 4 Ethnicity (questionnaire [% of patients]) Through study completion, an average of 1 year.
Secondary Epidemiological features 5 Religion (questionnaire [% of patients] protestant, pentecostal or neopentecostal, spiritism, afro-brazilian, no religion or atheism and others]). Through study completion, an average of 1 year.
Secondary Epidemiological features 6 Occupation (questionnaire [% of patients]) Through study completion, an average of 1 year.
Secondary Epidemiological features 7 Education (questionnaire [years]) Through study completion, an average of 1 year.
Secondary Epidemiological features 8 Individual income (questionnaire [dollars]). Through study completion, an average of 1 year.
Secondary Epidemiological features 9 Family income (questionnaire [dollars]). Through study completion, an average of 1 year.
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