A PHARMACO-CLINICAL STUDY OF PANDUGHNI VATI ON PANDU …
Transcript of A PHARMACO-CLINICAL STUDY OF PANDUGHNI VATI ON PANDU …
A CLINICAL STUDY OF PANDUGHNI VATI ON PANDU W.S.R. To IRON DEFICIENCY ANEMIA IN CHILDREN
Prof.. K. S. PATELHODDr. V. K. KORI
Asst. Professor
Institute for Post Graduate Teaching And Research in AyurvedaGujarat Ayurved University,
Jamnagar-361008
DEPARTMENT OF KAUMARABHRITYA
• With a global population of 6,700 million, at least 3,600
million people have iron deficiency and 2000 million out of
these suffer from iron deficiency anemia.
• South East Asia contributes to 1/5th of population living with
Iron deficiency anemia*.
• Prevalence of anemia in India to be higher than other south
Asian countries**.
• The Third National Family Health Survey (NFHS 3)
reported that prevalence of anemia to be 70-80% in
children. ****GBD 2000 WHO estimates.
** Lancet study rings alarm over anaemia prevalence in India, Indian Express, August 11, 2011.
****National Family Health Survey-III (NFHS-III) 2005-06,Delhi
• Indian Govt. started a National Anemia Prophylaxis Programme in1970.
• Recently Government of India in collaboration with WHO*,UNICEF* and FOGSI* launched the 12 by 12 initiative, on 23 April2007**.
• Several other programmes focusing on issue of anemia include:
1. Mid-day meal programme
2. Kishori Swasthya Yojna,
3. Matri Suraksha Abhiyan
4. ICDS (Integrated Child Development Services), IMA (IndianMedical Association) Anemia free India, as a Public PrivatePartnership and Anemia Chale Jao etc.
• However, most of these programmes have not had anticipatedsuccess and anemia prevalence goes on increasing.
*World Health Organization, United Nations Children’s Fund, Federation of obstetric and Gynecology Society of India**Suneeta Mittal , FCH news and workshop 12 by 12 initiative booklet, , July, 2007, All India Institute of Medical Sciences, New Delhi
Anemia is defined as the reduction of hemoglobinconcentration or the hematocrit below the range ofvalues occurring in healthy persons.*
IRON DEFICIENCY ANEMIA (IDA)
Iron deficiency anemia (IDA) is defined as the depletion of
iron stores in the body where iron loss exceeds iron intake
for a long time and insufficient iron is available for normal
hemoglobin production.
*Bertil Glader, The Anemias. In Nelson Text Book of Pediatrics, Ed Behrman RE et al. 17th Edition, Saunders, Philadelphia, 2004: 1604-1632.
Faulty DietAtisevena (excessive
use):
Kshara, Amla, Lavana,
Katu, Kashaya,
Tikshna, Ruksha,
Ushna,Vidahi Ahara,
Nishpava, Tila Taila,
Pinyaka, Masha, Madya,
Matsya, Mridbhakshana
Sharirika Manasika
Vyayama, Divaswapna
etc
(During digestion of
food)
Kama
Krodha
Bhaya
Chinta
Shoka
Krimiroga
Grahaniroga
Pratishyaya
Jeerna Jwara
Panduta
Gatramarda
Hriddrava
Akshikutashotha
Gatrasada
Kopanatva
Aruchi
Annadwesha
Shishiradwesha
Roma shata
Agnisada
Balakshaya
Bhrama
Dourbalya
Gaurava
Pindikodweshtana
Pitta PradhanTridosha Prakopa
Agni DushtiSanchaya
DhatusaithilyaAgnimandya
Amotpatti
Srotorodha
Dosha Sanchaya
Hridayaprapti
UttarottaraDhatukshaya
Prakopa
Sadhak Pitta,Vyana Vayu
Circulation through Dasa DhamaniPrasara
Tvakmasantara AshritaSthanasanshraya
Kapha, Vata, Asrik, Tvak, Mamsa Dushti
Rakta Poshak BhagaAnutpada
Bala, Varna, Sneha, Oja Kshaya
Purvaroopa
Hridaya Spandana
Shthivana
Prekshanakoota Shotha
Vyana Vayu Tvak Rukshata
Svedabhava, Shrama
Tvaksphotana, Gatrasada,Mrudabhakshana (Prabhavajanya)
SamghatabhedaSvarupatahaani & Svavyaparsaithilya
Dhatukshaya
Vyakti
Bheda Vataja Pittaja Kaphaja Sannipataja Mrudabhakshanajanya
A) Kinetic approach B) Morphological approach
1. Blood LossAcute: GI bleeding, Injuries, Childbirth, SurgeryChronic: Lesions of gastrointestinal tract, gynecologicaldisturbances
2. Increased Rate of Destruction(Haemolytic anaemias)•Intrinsic (intracorpuscular) abnormalities of RBC
Red cell membrane disorders Red cell enzyme deficiencies Disorders of haemoglobin synthesis
• Extrinsic (extra corpuscular) abnormalitiesAntibody mediated Mechanical trauma to red cells InfectionsChemical injury
3. Impaired Red Cell production(Ineffective hematopoiesis)
• Defective DNA synthesis: megaloblastic anaemias• Defective haemoglobin synthesis
Deficient heme synthesis: Iron deficiencyDeficient globin synthesis: Thalassemias
1. Normocytic Normochromic AnaemiasMCV, MCH and MCHC are within the normal range
2. Microcytic Hypochromic AnaemiasMCV* (<approx. 80 fl.) MCH** (<approx. 27 pg)MCHC*** (<approx. 30 g/dl)
Ex. iron deficiency and thalassemias
3. Macrocytic AnaemiasMCV (>approx. 96fl)
*MCV – Mean Corpuscular Volume**MCH- Mean Corpuscular Hemoglobin***MCHC- Mean Corpuscular Hemoglobin Concentration
Drug Review
Sr. no. Name of drug Botanical name Proporti
on
Part used
1. Amalki Emblica officinalisGaertn.
1 Dry fruit
2. Bibhitaki Terminalia belerica Roxb. 1 Dry fruit
3. Punarnava Boerhaavia diffusa Linn. 1 Whole plant (dry)
4. Vidanga Embelia ribes Burm. f. 1 Dry fruit
5. Shunthi Zingiber officinale Rosc. 1 Dry Rhizome
6. Maricha Piper nigrum Linn. 1 Dry fruit
7. Pippali Piper longum Linn. 1 Dry fruit
8. Katuki Picrorhiza kurroa Royle exBenth.
1 Dry Rhizome
Sr. no. Name of drug Latin name No. of Bhavana
9 Kumari swaras Aloe barbadensis Mill 1
10 Gomutra Cow’s urine 1
11 Punarnava kwath Boerhaavia diffusa Linn. 2
12 Amalaki kwath Emblica officinalis Gaertn. 2
Drugs Rasa Guna Virya Vipaka Doshag
hnata
Karma
Amalaki Amla pradhan
Panca Rasa.
Guru, Ruksha
Shita
Shita Madhura T Rasayana, Balya, Dipana, Medhya,
Antioxidant
Bibhitaki Kashaya
Katu
Ruksha,
Laghu,
Ushna Katu T Dhatuvardhaka, dipana, Anulomana,
Antioxidant
Punarnava Madhura, Tikta,
Kashaya
Laghu, Ruksha Ushna Madhura T Shothahara, Raktavardhaka, Mutral,
Antioxidant
Vidanga Katu, Kashaya Laghu,Ruksha Ushna Katu K V Dipana, Anuloman, krimighna,
Raktashodhak, Varnya, Rasayana
Shunthi Katu Laghu, Snigdha Ushna Madhura K V Deepana, Rochana, Pachana,
Antioxidant
Maricha Katu Laghu, Tikshna Ushna Katu K V Deepana, Pachana,
Srotoshodhana, Antioxidant
Pippali Katu Snigdha, Ushna,Tikshna Shita Madhura V K Raktavardhaka, Yakriduttejaka,
Bioavaibility enhancer
Katuki Tikta Ruksha, Laghu Shita Katu K P Deepana, Yakriduttejaka
Bhedana, antioxidant,
ImmunamodulatorKumari Katu Guru, Snigdha,
Pichchhila
Shita Tikta K P Vedanasthapana, Vrunaropana,
hepatoprotective
Gomutra Katu, Tikta,
Kashaya
Tikshna, Laghu Ushna Katu K V Antioxidant, Antimicrobial
Immunomodulator
Clinical Study
To assess the efficacy of Pandughni Vati on various
objective and subjective parameters among patients
of Panduroga.
• Patients attending the OPD of Kaumarbhritya Dept, IPGT
& RA, Jamnagar from age 2 to 16 of either sex fulfilling
the inclusion criteria were selected for the study.
• Clinical study cleared by Institutional Ethics Committee:
Ref-PGT/Ethics/2008-9/2520 dated 24-11-2008
• Clinical study registered in CTRI: CTRI/2011/12/002310
Patients of 2-16 age groups having classical symptomatologyof Panduroga/Iron deficiency anemia.
Hemoglobin <11.5 gm/dl
Transferrin Saturation Index* <16
Patients with worms in stool were dewormed and included instudy only after stool report become negative for worms.
*T. Saturation=S. Iron
TIBCX 100
Age <2 years and >16 years
Hemoglobinopathies especially Thalassemia.
Associated Cardiac Complaints.
Hemoglobin below 6.5% g/dl.
Patients with conditions causing chronic blood loss.
Chronic debilitating illness like TB, Juvenile Diabetes.
Regular/ irregular menstrual cycle with heavy blood loss in
adolescent girls.
Pandughni Vati
Form of drug : Tablate
Dose:
Time of Administration : After breakfast and meal
Anupana : Luke warm water
Duration of Treatment : 90 days
Follow up : 60 days
Age group(Yr) Pandughni Vati Frequency
2-6 3.0 gram three divided doses
7-11 6.5 gram three divided doses
12-16 10.5 gram three divided doses
: S. iron, S. ferritin,
Total Iron Binding Capacity (TIBC)
:Total Protein, A/G ratio, SGOT,
SGPT, Alk. Phosphatase, S.Bilirubin
:S. Urea, S. Creatinine
:Routine and microscopic
:Routine and microscopic
• Subjective Parameters:1. Roga Bala-Cardinal and Associated Symptoms of Pandu
Roga.
2. Dehabala, Agnibala and Satvabala Pariksha.
• Objective Parameters:1. Haematology-Hb%, PCV, MCV, MCH, MCHC, TRBC
2. Marker Compounds- S. Iron, S. ferritin, TIBC, Transferrin
Saturation
No Pallor 0Pallor hard palate 2Pallor of hard palate, palms/tongue 4Pallor of hard palate, palms/tongue, conjunctiva. 6Pallor of hard palate, palms/tongue ,conjunctiva ,nails and skin
8
Panduta
No palpitation 0Palpitation on heavy exertion 1Palpitation on moderate exertion 2Palpitation on mild exertion. 3
Hriddrava
Edema occational. 1Periorbital edema only in the morning hours. 2Periorbital edema present throughout the day. 3
Akshikuta Shotha
No leg cramps 0Mild leg cramps only at night. 1Leg cramps present in night or on exertion. 2Leg cramps present in night or on exertion, needs medication.
3
Leg cramps present throughout the day. 4
Pindikodveshtana
No dyspnoea 0Dyspnoea on heavy work or play. 2Dyspnoea on moderate work or play. 4Dyspnoea on light work or play. 6Dyspnoea on routine activities. 8
Shwasa
No weakness. 0Weakness present, routines not hampered. 1Weakness present, routines hampered. 2Weakness present, routines hampered, school absenteeism
3
Always sleepy. 4
Daurbalya
No H/O RURTI 0RURTI one episode /month. 1RURTI two episode /month 2RURTI three episodes /month. 3RURTI > three episode /month 4
Recurrent URTI
No Weight Gain 0Weight Gain 1kg in three months. 2Weight Gain 2 kg in three months 4Weight Gain 3 kg in three months. 6Weight Gain >3 kg in three months 8
Weight Gain
Presence of all (Utsah/Laghuta/Udgarshuddhi/Kshut/Trishna/Yathochit malpravrutti)
0
Any 4 2Any 3 3Any 2 4Any 1 5
Jarana Shakti
Good quantity thrice a day 0Reduction up to 25% 2Reduction up to 50% 3Reduction upto 75%, on IV fluids 4Only on IV Fluids 5
Abhyaharana Shakti
Equally willing towards all the Bhojyapadarth(sarva rasa)
0
Willing towards some specific Ahara/Rasavishesha 1Willing towards only one among Katu/Amla/Madhura food
2
Only most liking, not to others 3Unwilling for food but could take the meal 4Totally unwilling for food 5
Ruchi Aharakale
Easily in normal routine 0In normal routine but with difficulty/after meals 1Alternate day/1-2 times ,not well formed 3Every 2nd day/2-3 times, semi liquid, with food particles
4
Every 3rd day/3-4 times ,liquid stools 5
Vata Mutra Purisha Retasam mukti (esp. bowel)
No Irritability , always cheerful 0Occasional irritability. 1Frequent irritability 2Irritability throughout the day 4
Kopanatva
Sound sleep (Deep, unbroken) 0Delayed onset of sleep, gets disturbed at night 1Sleep only for 3-4 hrs at night/day 2No sleep at all at night/some hrs in day time only 3
Nidra labho yathakalam
Enthusiastic and having concentration, interest in routine
0
Less enthusiastic, not able to concentrate but interested in routine
1
Less enthusiastic and not interested in work 2Loss of enthusiasm and concentration 3
Concentration and enthusiasm
• Cure (Complete remission) 100% relief
• Marked Improvement76-99% relief
• Moderate Improvement51-75% relief
• Mild Improvement26-50% relief
• Unchanged< 25% relief
Observations
58.82%
41.18%
Complete
Discontinue
64.7%
33.33%
1.97% Mild (Hb. 11.5-10%)
Moderate (Hb.<10-7%)
Severe (Hb. <7%)
43.13%21.56%
17.64%
1.96%
0-6months
6-12 months
12-24 months
24-36 months
0
20
40
60
80 74.5
64.770.5
64.7 64.7
33.33 35.29
74.5
%Observations n=51
0
20
40
60
80
100
64.7 64.7
29.41
90.19 92.15
58.82
% Observations
N=51
%
0102030405060708090
35.2943.13
76.4766.6762.74
47.05
88.23% of Patients N=51
23.08 %
41.76 %
52.75 %
Grahanidosha Krimiroga Pratishyaya
0
20
40
60
80
100100
96.07
43.13
25.49
13.7229.41
% of patients
n=51
0
20
40
60
80
60.78
47.05
39.21
70.5864.7
31.3739.21
62.74
23.52
% of patients
N=51
%
0
20
40
60
80
100
47.05
82.27
54.9
60.78
49.01
45.09
50.98
52.94
52.94
72.54
100
Dashavidha Pariksha
N=51
%
Results
Features n BT AT% of
reliefSD SE t p
Panduta 30 4.53 0.73 83.82 1.10 0.20 19.00
Daurbalya 29 1.86 0.34 81.48 0.63 0.12 12.90
Shwasa 13 3.15 0.15 95.12 1.41 0.39 7.65
Hriddrava 10 1.80 0.30 83.33 0.71 0.22 6.71
Akshikutashotha 4 2.00 0.25 87.50 0.96 0.48 3.66 <0.05
Pindikodweshtana 7 1.57 0.14 90.91 0.53 0.20 7.07
Features n BT AT% of
reliefSD SE t p
Jwara 7 1.43 0.00 100 0.79 0.16 4.80 <0.01
Shira Shula 10 1.40 0.20 85.71 0.42 0.13 9.00
Gatramarda 12 1.50 0.17 88.89 0.49 0.14 9.38
Kopanatva 21 2.14 0.48 77.78 0.66 0.14 11.60
Agnisada 17 1.65 0.06 96.43 0.62 0.15 10.59
Annadwesha 20 1.75 0.15 91.43 0.88 0.20 8.11
Katipadaururuk 11 1.55 0.18 88.24 0.67 0.20 6.71
ShirnaLomata 10 1.80 0.50 72.22 0.95 0.30 4.33 <0.01
Chanchalatva 5 1.80 0.40 77.78 0.55 0.24 5.72 <0.01
Smrutihras 10 1.30 0.20 84.62 0.32 0.10 11
Suptata 8 1.75 0.50 71.43 0.89 0.31 3.99 <0.01
Shishiradwesh 7 1.00 0.14 85.71 0.38 0.14 6.00
Balakshaya 18 1.56 0.28 82.14 0.57 0.14 9.44
Parameters n BT AT% of
reliefSD SE t p
Hb (g/dL) 30 10.16 10.54 3.75 0.69 0.13 3.02 <0.01
PCV (%) 30 32.22 32.84 1.9 1.95 0.36 1.72 >0.05
MCV (fl) 30 70.01 70.53 0.74 1.70 0.31 1.67 >0.05
MCH (pg) 30 22.22 22.53 1.43 0.70 0.13 2.46 <0.05
MCHC (g/dL) 30 31.51 31.74 0.75 1.16 0.21 1.12 >0.05
TRBC (106/µL) 30 4.66 4.76 2.10 0.29 0.05 1.84 >0.05
Parameters N BT AT% of
reliefSD SE T p
Blood urea (mg/dL) 30 19.63 19.70 0.34 6.59 1.20 0.06 >0.05
S.Creatinine (mg/dL) 30 0.57 0.53 7.56 0.14 0.03 1.69 >0.05
SGOT (IU/L) 30 28.83 29.07 0.81 7.56 1.38 0.17 >0.05
SGPT (IU/L) 30 12.47 12.33 1.07 7.19 1.31 0.10 >0.05
Total Protein (g/dL) 30 6.99 6.99 0.05 0.33 0.06 0.06 >0.05
Albumin (g/dL) 30 4.06 4.09 0.74 0.31 0.06 0.53 >0.05
Globulin (g/dL) 30 2.93 2.91 0.91 0.42 0.08 0.35 >0.05
Alk. Phosphatase (IU/L) 30 144.63 150.13 3.8 53.58 9.78 0.56 >0.05
S.Bilirubin (mg/dL) 30 0.56 0.58 4.79 0.26 0.05 0.57 >0.05
Uric acid (mg/dL) 30 3.19 3.35 5.12 1.17 0.21 0.77 >0.05
S. Calcium (mg/dL) 30 9.58 9.79 2.26 0.65 0.12 1.83 >0.05
Parameters n BT AT% of
reliefSD SE t p
S.Iron (IU/L) 30 36.41 38.02 ↑4.42 7.44 1.36 1.18 >0.05
S.Ferritin (IU/L) 30 25.77 15.46 39.99 20.53 3.75 2.75 <0.05
S.TIBC (IU/L) 30 382.47 389.20 ↑1.76 67.09 12.25 0.55 >0.05
TransferrinSaturation (%) 30 9.65 9.88 ↑2.32 1.23 0.22 0.99 >0.05
Parameters n BT AT% of
reliefSD SE t p
S.Iron (IU/L) 15 36.87 39.67 7.58 6.38 1.65 1.70 >0.05
S. Ferritin (IU/L) 15 24.46 14.55 40.53 21.72 5.61 1.77 >0.05
S.TIBC (IU/L) 15 358.73 378.73 5.58 78.18 20.19 0.99 >0.05
TransferrinSaturation (%)
15 10.38 10.64 2.50 1.26 0.32 0.80 >0.05
Parameters n BT AT% of
reliefSD SE t p
Hb (g/dL) 13 9.91 9.94 0.31 0.77 0.21 0.14 >0.05
S.Iron (IU/L) 13 36.32 36.60 0.76 9.07 2.52 0.11 >0.05
S. Ferritin (IU/L) 13 28.58 14.84 48.07 19.30 5.35 2.57 <0.01
S.TIBC (IU/L) 13403.6
9397.00 1.66 57.50 15.95 0.42 >0.05
TransferrinSaturation (%)
13 9.08 9.23 1.65 1.33 0.37 0.41 >0.05
Overall effect of therapy on various parameters of Pandu
87.03%84.8%
61.62%
1.82%
-7.87%
-20
0
20
40
60
80
100
Cardinal features Associated features
Bala (Deha,Agni,Satva)
Hematological Specific markers
0% 3.33%
80%
13.33%
0
10
20
30
40
50
60
70
80
90
Cured Marked Imp. Moderate Imp. Mild Ipm.
Discussion
Basic difference in the management – Pandu / IDA
• Correction of Metabolism Vs Nutritional Deficiency
• Pandu – A Santarpanottha Vyadhi
• Correctors of Agni Vs Role of iron containing compounds
• Charaka Samhita: 108 preparations are indicated but only 13 preparations
contain iron.
• AFI:102 preparations are indicated but only 30 preparations contain iron.
• Administration of metallic preparations require special cautions in children.*
• * Masawe MJ. The adverse effect of iron retention on the course of certain infections. British medical journal, 1987, 2:1113–15.
Discontinued patients = 21
8 : Non-cooperative (fear of injection)
2 : laboratory personal were unable to take sample even after several pricks
6 : Irregular
1 : URTI Infections
1 : vomiting
1 : diarrhea
1 : Refusal of intake due to Heavy dose of PV
1 : Move other place
• A study stated that pooreducation is the common cause ofanemia. Because it is responsiblefor lack of knowledge aboutbalanced and nutritiousdiet, faulty dietary habits etc.which may lead to nutritionalanemia.
• Parents had little knowledge ofthe symptoms, causes andprevention of anemia.
Maternal edu. Secondary (33.33%)
Paternal edu. Secondary (35.29%)
www.jiag org, www.ijag.org,
Lillian Mwanri, Anthony W, Joseph M, School and anaemia prevention: current reality and opportunities—a Tanzanian case study, Oxford
Journal, health promotion International, Vol 16, issue4, pg 321-331.
• Various studies proved that patients fromlower SES have higher grades of anemiathan higher SES.
Socio-economic
status
74.50% lower SES
• Vegetarians are more likely to developiron deficiency, it may be due to the factthat availability of iron in plants rangesfrom only 1-10%, while that in meet, fishetc, is 20-30%. Animal products aresource of haem iron and its absorption isusually high compared to non haemiron.
Dietary pattern 64.70%
Vegetarian
Sanjeev M Chaudhry, Vasant R Dhage, A study of anemia among adolescent female in the urban area of Nagpur , IJCM, Vol33, issue
4, oct.2008, pg243-245.
Devidsons principle and practice of medicine, 20th ed. 2006, Elsevier ltd., editors Nicholas Boon, Nicki college, Brain walker John Hunter, pg126.
• PV shown significant increase (P<0.01) in Hemoglobin level.
• MCH was significantly increased (P< 0.05) MCH, Theabsorption of iron and improvement in hematologicalparameters depends on availability of enhancers and quantityof iron*.
*http://www.who.int/nutrition/publications/micronutrients/guidelines_for_Iron_supplementation.pdf
• PV revealed highly significant result on all cardinal andassociated features.
PV, All biochemical parameters shown insignificant result
Finding are suggestive of normal functioning of liver and
kidney and normal metabolism of body. Various studies
revealed that vitamin C may lower the serum uric acid level*.
*Arthritis Rheum. 2005. Johns Hopkins University, Baltimore, Maryland 21205, USA.
• S. ferritin was significantly decreased (P<0.05) High
S. ferritin reflects high stores of iron in the body.
• S. iron and Transferrin saturation shown insignificant
result. Iron is transported in blood by the protein
transferrin High iron intake may increase S. iron and
transferrin saturation and helpful in correcting IDA
because *.*Centers for Disease Control and Prevention (CDC), Recommendations to Prevent and Control Iron Deficiency in the United States, MMWR, April 3, 1998 / Vol. 47 / No. RR-3
• increase in hemoglobin level was highly significantly
in 2-6 yrs children, but insignificant change was
noticed in 7-11yrs aged children
• Some dissimilarity was noted between the present study and
the previous research. Previous research work on Pandughni
Vati shown insignificant result in adult*. But in present
research work insignificant result was noticed in 7-11yrs aged
children while highly significant result shown in 2-6yrs aged
children.
Appetizer, digestive and hepatoprotactive drugs
(Kutaki, shunthi, Marich, Vidanga, Amalki, Bibhitaki )
Pippali and Shunthi: Increase the bioavailability &
enhances absorption of the nutrients
Amalaki : Rich in
Iron and Vitamin C
Amalaki, Bihitaki, Shunthiand Pippali:
Antioxidant, Immunomodulatory
Correction of digestion
& Iron deficiency
Pandu includes Various types of Anemias
Kapha Dominant variety of Pandu has more resemblance with IDA
More emphasis given for the correction of Metabolism as well as
supplementation of Iron in treatment of Pandu.
Presence of Grahanidosha (23.52%), Krimiroga (43.13%) and Pratishyaya
(62.74%) show strong evidence between anemia and these conditions.
On subjective parameters shown Highly Significant result.
Pandughni Vati prevents anemia enhances the hemoglobin level in this
clinical trial.
No adverse effect was reported
during study period