ECH GENERAL ASSEMBLY – XVIII Symposium of GIRI
12 to 14th of November 2004
Scientific Report 1
Evidence profile for the efficacy of homeopathy – A new paradigm for medical sciences:
“The Body Information Theory”.
First question addressed: The activity of very highly diluted preparations.
Homeopathic practitioners will argue that the use of preparations that are diluted beyond
Avogadro’s number (i.e. potencies greater than C10) happens in only 25% of the prescribed
homeopathic medications. Nevertheless, for some people this question is the most important
obstacle to the acceptance of homeopathy.
A/ The experimental model that is cheapest, most reproducible and also the most easily
researched is probably the “acetylcholine-induced contraction of the rat ileum”. It is a wellrecognized
scientific model (Chang FY, Lee SD, et al. Rat gastrointestinal motor responses
mediated via activation of neurokinin receptors. J.Gastroenterol Hepatol 1999; 14: 39-45).
This model has been devised for the verification of very high dilutions of Belladonna by A.
Cristea, a Romanian researcher; results have already been published (Bastide M (ed). Signals and Images. Kluwer Academic Publishers 1997: 161-170).
Professor Wolfgang Süß, Institute of Pharmacy at the University of Leipzig, has used this
model to test the transfer of the activity of a homeopathic remedy (in this case Atropinum
sulphuricum D60) from the original liquid form to the homeopathic tablet. As usual, several
controls were performed. Alpha-lactose monohydrate tablets impregnated with the highly
diluted Atropinum had systematically efficacy, on the contrary with anhydrous alpha-lactose
tablets no effect can be ascertained. Thus, the quality of homeopathic tablets can be tested
before daily use in pharmacy (constant reproducibility). This very simple model therefore has
the potential to remove doubts about the activity of very highly diluted homeopathic remedies
(Schmidt F, Süß WG, Nieber K. In-vitro Testung von homöopathischen Verdünnungen. Biol.Med./Heft 1/February 2004;32-37).
B/ It has taken much more time for another model to be accepted by the scientific community.
The first publications appeared in 1991 but it is only in 2004, after an international
cooperation, that the results have finally been accepted in a high-standard peer-reviewed
journal, Inflammation Research. This model is different from the Benveniste model; he used
the same control but not the same activator.
Professors Marcel Roberfroid and Jean Cumps of the Institute of Pharmacy at the University
of Louvain, who respectively coordinated the European multi-centre (4 centres) trial and
performed the statistical analysis, explained the protocols and discussed the results. The work
demonstrates a significant inhibition of human basophil degranulation, as measured by alcian
blue staining, by high dilutions of histamine (10-30 – 10-38 M). This multi-centre research has
subsequently been confirmed in three laboratories by applying flow cytometry analysis and in
one laboratory by measuring histamine release. Even if, at present, the molecular theory
cannot explain these findings, the facts remain indisputable as recognized by the editor of
Inflammation Research. (Belon P, Cumps J, Ennis M, Mannaioni PF, Roberfroid M, Sainte-
Laudy J, Wiegant FAC. Histamine dilutions modulate basophil activation. Inflamm. Res.>
2004; 53: 181-188.)
ECH GENERAL ASSEMBLY – XVIII Symposium of GIRI
12 to 14th of November 2004
Scientific Report
2
C/ Research on high dilutions has existed since the 1950s, but the number and quality of
publications has increased in the last decade. Reviews and meta-analyses have even been
performed but often ignored or even denied (see COST B4 supplement report EUR 19110ISBN 92-828-7434-6). This research is not encouraged and even deemed inadvisable by
academic authorities.
Professor Jean Cambar, Dean of the Faculty of Pharmacy at the University of Bordeaux,
described the most important models that have been published previously in international
journals, confirming the effects of very highly diluted homeopathic preparations.
The efficacy of very high homeopathic dilutions of human or animal natural molecules (also
called endogen molecules) has been published several times in prestigious journals.
Examples include the following: Int J Immunotherapy 1987; 3: 191-200 (Thymulin in mice.
Bastide M); Int J Immunopharm 1990; 6: 211-214 (alpha/beta interferon, Carriere V); J VetHuman Toxicol 1995; 37(3): 259-260 (Thyroxine, Endler PC); Int J ImmunopatholPharmacol 1996; 9: 43-51 (Bursin, Youbicier-Simo BL). During this meeting Dimitris
Zienkiewicz, immunologist at the University of Edinburgh, presented preliminary findings
assessing, by immunosorbent assay and flow cytometry, the alteration in activation and
function of dendritic cells that comes about as a result of their treatment with homeopathic
dilutions of a bacterium. Dendritic cells play an instrumental role in both activation and
regulation of the immune system. Systematic changes in the profile of cytokines IL-10, IL-11
and IL-12 cannot be explained by the molecular theory.
Efficacy of very high homeopathic dilutions using pharmacological models has also been
published in peer-reviewed journals. Examples include the following: Thrombosis. Res. 1994;
76: 225-229 (Acetylsalicylic acid in a vessel model. Doutremepuich C); Haemostasis 1990;
20: 99-105 (Acetylsalicylic acid in healthy volunteers. Doutremepuich C); Thrombosis. Res.
1987; 48: 501-504 (Acetylsalicylic acid in healthy volunteers, Doutremepuich C).
The longest-used model, published frequently all over the world, is the toxicological model
(Arsenic, Phosphorus, Mercury, Cadmium, Cisplatina, Glutamate, Cuprum sulphate, etc). It
can be applied to vegetable, animal, cell culture material or even clinical studies. This model
is still used and indeed is the theme for a collaboration between the Universities of Bern and
Bologna, testing homeopathic arsenic trioxide treatments by plant-based bioassays. The
working variables are the germinated seeds or the stem length on the seventh day. At least 6
recent experiments by this team are published (Dr Lucietta Betti. DISTA-Department of Agro
environmental Science and Technology, University of Bologna.). Experiments are well conducted, in controlled conditions, with a sufficient
number of plants, animals or cells, and with a fair statistical treatment. Thefacts are indisputable, statistically significant and reproducible, even if they
cannot be explained using the molecular paradigm.
ECH GENERAL ASSEMBLY – XVIII Symposium of GIRI
12 to 14th of November 2004
Scientific Report
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Second question addressed: The content of very highly diluted homeopathic preparations.
Professor Jean Cambar introduced the theme by asking what are the contributions of the
different spectroscopies (Raman, Ultraviolet, X-ray or Magnetic Nuclear Resonance) in
revealing the structure of water and solvents in high dilutions? What is the real relevance of
Avogadro’s number in evaluating the precise pattern of molecules? Can a dilution work
without any molecule? One of the most innovative perspectives in this last decade was the
demonstration that high dilutions have as much activity and effectiveness in an organized
structured solvent without any solute molecule as they do when molecules are present (even
only some molecules).
Professor Louis Rey, Doctor of Sciences, Lausanne, a specialist in low temperature
thermoluminescence, has published on this topic in the international journals Nature (1988;
391: 418) and C.R.Physique (2000; 1: 107-110). He presented the latest results of the
experiments he carried out together with Dr. Philippe Belon on the thermoluminescence of
ultra-high dilutions of lithium chloride and sodium chloride. Ultra-high dilutions of lithium
chloride and sodium chloride (10-30 g cm-3) were irradiated by X- and gamma-rays at 77K,
then progressively re-warmed to room temperature. During that phase, their
thermoluminescence was studied and it was found that, despite their dilution beyond the
Avogadro number, the emitted light was specific of the original salts dissolved initially. Much
to the authors’ surprise, the experimental results showed, without ambiguity, the specificity of
the contained information. The findings proved to be reproducible in the course of many
different identical experiments. As a working hypothesis, the researchers propose that this
phenomenon results from a marked structural change in the hydrogen bond network initiated
at the onset by the presence of the dissolved ions and maintained in the course of the dilution
process, and probably due to the successive vigorous mechanical stirrings. (Physica 2003;
A323: 67-74).
Professor Guadalupe Ruiz-Vega, Universidad Michoacana de San Nicolás de Hidalgo,
Morelia, Mexico, presented her most recent publications in the field of thermodynamics. She
was able to demonstrate the biological effect of two ultra-low dose compounds. (Publication
in process.) The use of modern techniques in the hands of specialists is the best way toshow sceptics that the experimental facts are well grounded and confirmedby reproducible experiments. Even in ultra-molecular homeopathicdilutions, specific information of the prime dissolved substance still remainsin the preparation and can be detected experimentally.
ECH GENERAL ASSEMBLY – XVIII Symposium of GIRI
12 to 14th of November 2004
Scientific Report
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Third question addressed: The theoretical framework in which the effects of homeopathic diluted preparations can be explained.
Two members of G.I.R.I. (Groupe International de Recherche sur l’Infinitésimal; see
www.giriweb.com), Professor Madeleine Bastide (University of Montpellier) and Agnès
Lagache (Professor of Philosophy, Paris) have been working on this topic for 16 years. A new
paradigm for medical science is needed to explain these facts and to allow more precise
research models in the future. A working group of 7 members applied this new paradigm to
the analysis of experimental results. “When the observed fact does not correspond to a famous theory, the facthas to be accepted and the theory rejected”; “A theory must be modified tobe adapted to nature and not nature to adapt itself to the theory”. ClaudeBernard (Introduction à la Médecine Expérimentale).
Prof. Bastide explained that homeopathy and research models are based on the observation of
“symptoms”. Asymptomatic pathologies exist that provoke “biological scars” as a proof of the
self-treated organism without showing the illness symptoms (Charles Nicolle, Nobel Prize1929, Life and Death of Illness). Symptoms and biological modifications are not the same and
concern different levels in the body. The symptom may be an expression of the body when it
cannot find any answer whatever the situation (infection, stress, strong emotion…).
Example: Rubella in a normal subject: no apparent sickness. Rubella in immuno-deficient
subject: symptoms, apparent sickness.
For the allopathic research approach, the symptoms are pathognomonic, specific to the illness;
they are used to diagnose the pathology. When the diagnosis of the pathology is performed,
the treatment is chosen accordingly; classical therapy may be also targeted against symptoms.
For the homeopathic research approach, considered symptoms are idiosyncratic; specific to
the patient. They are the personal expression of the sickness by the patient. They are used to
choose the specific remedy according to the similarity of the symptoms observed by
“proving” in a healthy subject. The living body is in a lasting and irreversible learning
process; it communicates at every level with its environment. It is able to receive and treat
semantic and corporeal information; it is not an inert object.
ECH GENERAL ASSEMBLY – XVIII Symposium of GIRI
12 to 14th of November 2004
Scientific Report
5 The paradigm of corporeal signifiers (Bastide M., Lagache A. Revue Intern. Systémique
1995; 9: 237-249 and Altern Ther Health Med. 1997; 3: 35-9).
Three principles define homeopathy, based on clinical and experimental analysis: the similia
and whole person principles, and the use of very high dilutions. The effects of high dilutions
cannot be explained by a simple molecule-receptor interaction (mechanistic paradigm), the
“well established theory” of modern science. Prof. Bastide & Lagache propose an
epistemological approach to homeopathy based on body information processes received and
interpreted by the living organism; this follows the rules of information exchange. Exchange
of objects between a giver and a receiver is very simple: one loses, the other gains, and the
sum is constant. On the other hand, information is not an object but the trace of an object –
mediation between object and receiver is required for a signal to be transmitted. For example,
take the story of Robinson Crusoe: Crusoe sees Friday’s footprint in the sand but not the foot
itself. For him, this footprint means ‘there is another man on this island’. Friday’s foot is the
originator (matrix) of the information; the footprint is information but is not an object; the
sand is the carrier of the information (the mediator). When the carrier disappears, the
information disappears too. The information is understood only by the receiver and the
understanding of the information depends on its context – he knows that he is alone on the
island. Prof. Bastide & Lagache therefore suggest that in homeopathy, the originator of the
information is the starting material of the remedy; succussed dilutions of the starting material
in a solvent are mediators. High dilutions contain only information from that material and no
molecules remain. This mediation results from the succussed solvent being in a specific state,
implying perhaps electro-magnetic processes. The receiver (the whole living body) receives
and processes the information in the remedy according to its state, whether healthy
(“proving”) or sick (therapy). The bases of this paradigm are verified by the systematic
experimental results obtained as described in the first parts of the conference. This new paradigm is needed to explain the experimental facts and tounderstand the failure of research models that do not fit it.
ECH GENERAL ASSEMBLY – XVIII Symposium of GIRI
12 to 14th of November 2004
Scientific Report
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The final question addressed: The clinical effects of homeopathic preparations.
An experimental design is only relevant if it takes into account the observed phenomenon
within its specific framework and if the subject addressed can be isolated of all external
influences. Considering human medicine, the psychological factors are responsible for nonspecific
effects and the medication effects are called specific effects. Whatever the research
model, taking into account the homeopathic approach, the idiosyncratic symptoms (specific to
the patient) must be considered excluding pathognomonic symptoms.
A/ Professor Leoni Bonamin, Paulista University (São Paulo) and president of G.I.R.I.,
reviewed studies in veterinary homeopathy. Such studies are relevant for homeopathy
because it is easier to isolate the effects of the treatment: the placebo effect is almost nil and
there are fewer ethical considerations. Moreover, studies in well-defined herds and features
can include a very homogeneous sample from a large number of animals. Nevertheless, the
rules for well-designed studies must still consider the particularities of homeopathic research
as regards the Similia principle (considering idiosyncratic symptoms).
Veterinary studies are very important for organic farming regulation. In Europe, only
homeopathic treatments are authorized for biological farming. The use of homeopathy is
aimed at avoiding chemical residues in the food chain. More institutional support is certainly
needed.
In recent studies, the use of homeopathic complexes has been tested with very good results
using parallel placebo groups, blinded design, homogeneity of samples with sufficient
animals, and a protocol that is easy to manage in the farming context.
Filliat C. Particularité de l´utilisation de l´homéopathie en production avicole. Annals of the “Entretiens Internationaux de Monaco 2002”, 5-6 October 2002. http://www.giriweb.com.
The use of homeopathic complex reduced the incidence of haematomas in turkeys during
transportation by about 30%.
Riaucourt A. L´Exemple de la Filière Porcine. Annals of the “Entretiens Internationaux de Monaco 2002”, 5-6 October, 2002. http://www.giriweb.com. The use of a complex (with
endogenous and exogenous substances) to improve oestrus manifestation in female pigs
induced a reduction of the repetitions of inseminations and semen loss.
Veterinary studies are also useful for questioning homeopathic study design. Using the model
of psychogenic dermatosis in dogs and cats (Torro, et al. In press), six months of treatment
with the simillimum shows 70% success. One year after finishing the treatment there was no
recurrence. The entire study duration is six years. The very long efficacy of the homeopathic
treatment is a reason for questioning cross-over design.
Because veterinary pathogenetic studies are very rare, veterinarians often need to do
extrapolations from human pathogenesis and their Materia medica is based on classical
studies performed in humans.
ECH GENERAL ASSEMBLY – XVIII Symposium of GIRI
12 to 14th of November 2004
Scientific Report
7 Research protocols in experimental animals. For example, the effects of nosode (isopathic
homeopathic remedy) versus allopathy and similar homeopathic remedy using as model the
experimental urinary infection of rats (Gonçalves et al. O uso da homeopatia no tratamento da
infecção urinária em ratas. Anais do VIII SINAPIH; 20-22 May, 2004: p.25-26.
http//climed.epm.br/sinapih/index). This study compares nosode from individual or collective
samples. It is a blinded study; the presence of E. coli in gall bladder of rats is evaluated after
12-16 days of treatment: Untreated control, 100% of bacteria colonies (no spontaneous
healing), second control is the vehicle (alcohol 5%) 94%, comparison group treated with
Antibiotic (levokinolone) 33%*, treated group with nosode from a pool of urines (30D)
73%*, treated group with a self-nosode (30D) 39%*, and treated with a similar homeopathic
remedy Phosphorus 30CH (the incorporation of rats in this group happens observing their
individual behavior) 22%* (* Fisher test, p=0.05).
With such studies it is possible to evaluate some homeopathic parameters such as the criteria
for the choice of the best homeopathic dilution. The general rule is to use high potencies for
chronic / mental disturbances and low potencies for acute / organic disturbances. The antidepressive
effect of Hypericum perforatum in rats was better in 200CH than in 30CH: tested
by the Porsolt forced swimming method (Goulart et al. Avaliação dos efeitos de Hypericumperforatum (Hp) dinamizado homeopaticamente em comportamento de ratos. Anais do VIIISINAPIH, 20-22 May 2004: p.14. http//climed.epm.br/sinapih/index); this was a blinded, well
designed study.
Experimental animal studies have limited application to veterinary or to human homeopathy. Veterinary studies minimize placebo effects and confirm the efficacy ofhomeopathic treatments. Experiments in laboratory animals helpimproving research design in homeopathy.
ECH GENERAL ASSEMBLY – XVIII Symposium of GIRI
12 to 14th of November 2004
Scientific Report
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B/ Last, but not least, the human studies were considered.
B.1) A second G.I.R.I. working group was dedicated to clinical research, and particularly
considered the issues of individuality and complexity.
Evidence Based Medicine (EBM) gives first priority to “Therapeutic Effects Testing” (TET),
starting from the work of basic scientists in laboratories up to clinical researchers doing
Randomized Clinical Trials (RCTs), and finally reviews or meta-analyses of several RCTs.
The achieved level of TET determines the level of EBM for a medicinal product. “Clinical
Use Testing” (CUT), starting with case reports, epidemiological outcomes and cost-benefit
studies, is only interesting for public health authorities and patients but it is never sufficient to
reach EBM. No real bridge exists between these two approaches.
Evidence Based Homeopathy (EBH) starts and ends with the individualized patient. It can be
represented as the arch of homeopathy: at one side there is the examination of the patient, and
at the other side the therapeutic instrument. In order to understand the patient, we must
consider his totality in time and space to be able to understand his basic vulnerability, latent or manifest. This totality must be qualitatively modalized with chronological assessment to get
the Minimal Syndrome of Maximal Value. The therapeutic instrument can be self-healing (no
syndrome, no medication), or management of life-style or nutrition in order to avoid obstacles
to cure. A homeopathic remedy can be considered after study of its physico-chemical
characteristics, its toxicology, its usual therapeutic use: this is the first step, the hypothesis.
The second step is the probability by a first “proving” (blinded protocol) on healthy
volunteers; third is the confirmation by further “provings”; fourth is the corroboration by
physio-pathological study; and last is the clinical verification in daily practice. For the
remedies we must have the same qualitative assessment as for the patients. But the keystone
of the whole homeopathic process, without which the arch will crumble, is the Law of
Similars. Research in homeopathy must be concentrated on qualitative “proving” on healthy
volunteers and clinical verification in daily practice. Therefore after many years of studies,
our first priority must be systematic clinical files collection (CLIFICOL project). The
Bayesian statistic, a statistical approach (likelihood ratio), can help establishing a scientific
base for our symptoms’ repertories. This approach was presented by Dr Lex Rutten from The
Netherlands.
Can one get over the gap that exists between EBM and EBH?
ECH GENERAL ASSEMBLY – XVIII Symposium of GIRI
12 to 14th of November 2004
Scientific Report
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B.2) Dr Harald Walach, University of Freiburg, presented an overview of the already
published papers.
Homeopathy is certainly popular (used by 50% of the population in France) and is historically
successful, both individually (by Fieldmarshall Radetzky, Paganini, etc.) and generally (in
cholera and other epidemics all over Europe). Homeopathy remained effective in the face of
adversaries and is growing despite (or because of?) modern medical technology.
Looking only at the latest publications and using validated Quality of Life questionnaires
(between 2000 and 2004), 6915 patients presented clinically significant improvement
(approximately 70% of cases; more in children). Homeopathy reduced costs and allowed a
better improvement in work-days lost compared with conventional practice. For specific
diagnoses such as bronchial asthma (89% improvement; even better after 2 years), cancer
patients in palliative care (improvement of quality of life, fatigue and anxiety but not pain),
hyperactive children (after 3 months, 75% improvement versus 65% for conventional
treatment), URTI (67.3% improvement with homeopathy, 56% with conventional treatment;
side effects 7.8% homeopathy versus 22% conventional), homeopathy is at least as effective
as conventional therapies, but costs are lower and the safety of homeopathy is greater.
On the other hand, an “efficacy paradox” can be acknowledged. Using the hierarchy of
evidence, for conventional medicine the RCT is of the highest value – the best rigour and
internal validity – but it has a low applicability score, a low external validity and its
conclusions are generalized with great difficulty. On the contrary the applicability of case
series is great, showing a high external validity and its conclusions generalized easily. RCT
implicitly tests the placebo hypothesis; the question is only: “Is the homeopathic therapy
different from placebo?” It presupposes a local-causal model of homeopathy, that the physical
presence and “information” of a remedy is decisive (without considering the “receiver” health
status), and that a “true” effect would be detectable through replication. It is apparent that
discrepancies exist regarding homeopathy in daily practice and the RCT approach.
Nevertheless RCTs have been performed and meta-analyses of these studies have concluded
that there is clear evidence of efficacy in favour of homeopathic treatments that cannot be
attributed only to a placebo effect (Linde K, Clausius N, Ramirez G, Melchart D, Eitel F,
Hedges LV, Jonas WB. Lancet 1997; 350: 834-43 and Dean M.E. Hans Walz Preisschrift,Essen:KVC Verlag, 2004.) For some specific diagnoses, the same level of evidence has been
reached: rheumatoid arthritis (6 studies); childhood diarrhoea (3 studies); postoperative ileus
(8 studies); hayfever, asthma (4 studies). For migraine, results of RCTs are disappointing. In
children, using comparison groups, significant results are obtained for recurrent infections,
postoperative agitation, adenoids, otitis media, and stomatitis in patients with cancer
(complication of the conventional treatment). There are promising pilots studies on low back
pain, premenstrual syndrome and chronic fatigue.
The problems with RCTs are:
they are difficult to replicate (true also for conventional treatment: only 48% of all
SSRI studies are significant);
they are invasive and expensive, inducing lack of interest due to a lack of funding;
blinded RCTs answer only the placebo question;
they make unwarranted presuppositions.
ECH GENERAL ASSEMBLY – XVIII Symposium of GIRI
12 to 14th of November 2004
Scientific Report
10 Conclusions: Clear indications exist about clinical effectiveness ofhomeopathy; homeopathy is effective in uncontrolled practice or versuscomparison groups; enough indications exist that “placebo” is aninsufficient explanation for the effects of homeopathy. Homeopathy can besimilar or better in effectiveness than conventional treatment and, where ithas been studied, it is cheaper in the long run. Many interesting questionsnot even asked should be prioritized, such as the potential of homeopathy toavoid invasive procedures in children and, in primary care settings, thelong-term effect of homeopathy in preventing chronic complications.
B.3) Future projects were discussed.
♣ Surveys on homeopathic practice have already been published. Dr Galen Ives
(Priority Research, Sheffield) made some recommendations for future projects. Questionnaire
design should be driven by requirements for data analysis, and professional advice sought
before starting, in particular thinking carefully about measurement scales (subjective data not
expressed in numbers but crossing a box), and assuming all respondents lack prior experience
in such recording. The question of timescales is a sensitive one therefore it would be better to
include only new patients. If the aim is to look at the daily practice, a large demographic data
is needed. The question about why the patients chosen homeopathy must be addressed. A
comparison group is not a common requirement in such studies, but to avoid editorial
comments on this question, it would be explained in the discussion part. The aims of the study
must be kept clearly in mind. Example: analysis of effectiveness versus conventional
medicine (CM); cost-effectiveness versus CM. It would be recommended to use inclusion
criteria (such as state of health) and sub-groups (as example acute cases). The study of
patient’s satisfaction is not the same as looking at treatment efficiency. Efficiency can best be
checked through Quality of Life studies, in this case at least 2 successive questionnaires are
needed with a greater risk of drop out.
♣ Dr Kivellos Spiros (Athens) introduced a severity scale that aims to embody
the laws of classical homeopathy in clinical study protocols. He proposed a classification of
“level of health”, starting on level 1 (healthy) down to level 12 (irreversible internal injuries).
The homeopathic prognosis can be estimated using such a scale and group classification has
been elaborated.
ECH GENERAL ASSEMBLY – XVIII Symposium of GIRI
12 to 14th of November 2004
Scientific Report
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Conclusions from this colloquium:
There is evidence that highly dilute homeopathic dilutions have biological activity.
The presence of a “footprint” of the original substance can be detected in the high diluted
homeopathic preparations.
Explaining the observed phenomenon a new paradigm for medical sciences exists.
Veterinary studies confirm the clinical efficacy of homeopathy.
Human studies reveal clinically significant improvement in 70% of patients (more in
children); the homeopathic effects cannot be attributed only to a placebo effect and for
some indications the efficacy of homeopathy has reached a high level of statistical
significance.
Future studies are needed that investigate the preventive effects of homeopathy in children
and chronic diseases. Funding of research into homeopathy must be considered as vital.
Finally, the participants wrote the following press release:
At the invitation of the European Committee for Homeopathy, whichrepresents 33 homeopathic doctors’ associations in 24 European countries,joining the XVIII symposium of GIRI, ten internationally renowned universityprofessors in the field of research met in Brussels for a 3 day meeting startingon Friday November 12th 2004. The results of the research discussed by these university professors are all inaccord with one another – namely, that there is clear evidence for theeffectiveness of homeopathic medications. There is sufficient reason forfurther research.The professors expressed their amazement at the lack of response from thehealth authorities to these convincing results.
Appendix I. Clinical Trials on Homeopathy Published from 1998 to 2002
Citation
Description
Findings
Vickers and Smith, 2002
Seven trials were included in the review (three prevention and four treatment trials); only two studies had sufficient information for complete data extraction.
The homeopathic remedy oscillococcinum appears safe and effective in reducing the duration of influenza, but has no effect on prevention.
Lewith et al., 2002
Randomized, double-blinded, placebo-controlled trial of 242 participants aged 18 to 55 years.
Trial compared an oral homeopathic treatment to placebo in asthmatic people allergic to house dust. Authors found the homeopathic treatment "no better than placebo." They noted "some differences between the homeopathic immunotherapy and placebo for which we have no explanation."
Oberbaum et al., 2001
Randomized, double-blinded, placebo-controlled trial in 32 children; 30 completed the study.
Traumeel S, a homeopathic skin cream, may significantly reduce the severity and length of pain and inflammation of the tissues lining the inside of the mouth from chemotherapy in children being treated with bone marrow transplantation.
Taylor et al., 2000
Randomized, double-blinded, placebo-controlled trial of 51 participants aged 17 years or older (50 completed the study).
Team tested the hypothesis that homeopathy is a placebo by examining effects of an oral homeopathic preparation in patients with perennial allergic rhinitis. They found a "significant objective improvement in nasal airflow" compared with the placebo group. However, both groups reported subjective improvement in "nasal symptoms" (with no statistically significant difference between groups). Authors concluded that the objective evidence supports that "homeopathic dilutions differ from placebo."
Jacobs et al., 2000
Randomized, double-blinded, placebo-controlled trial of 126 children; 116 completed the study.
Individualized homeopathic treatments improved digestive problems in children with acute childhood diarrhea. Results are consistent with findings of a previous study.
Weiser et al., 1999
Randomized, double-blinded trial of 146 people.
For the treatment of hay fever, a homeopathic nasal spray is as efficient and well tolerated as a conventional therapy, cromolyn sodium.
Rastogi et al., 1999
Randomized, double-blinded, placebo-controlled trial of 100 people between 18 and 50 (71 percent male/29 percent female).
A subgroup of patients with HIV in the symptomatic phase, receiving treatment, had increased levels of CD4 cells at the end of the trial; the placebo subgroup did not.
Vickers et al., 1998
Randomized, double-blinded, placebo-controlled trial of 519 people; 400 completed the study.
Homeopathic remedies, including arnica, are not effective for muscle soreness following long-distance running.
Weiser et al., 1998
Randomized, double-blinded, controlled trial of 119 people; 105 completed the study.
The homeopathic treatment vertigoheel, and the standard treatment of betahistine, are equally effective in reducing the frequency, duration, and intensity of vertigo attacks.
Due to the large number of trials, these studies have been selected to give a representative overview of the findings published in peer-reviewed scientific and medical journals in English and indexed in the National Library of Medicine's MEDLINE database.
Appendix II.
Systematic Reviews and Meta-Analyses of Clinical Trials of Homeopathy
Citation
Description
Findings
Ernst, 2002
Analyzed 17 systematic reviews (including meta-analyses) of controlled clinical trials for homeopathy.
Author found that the reviews failed to provide strong evidence in favor of homeopathy. No homeopathic remedy was proven by convincing evidence to yield clinical effects that are different from placebo or from other control intervention for any medical condition. Positive recommendations for use of homeopathy in clinical practice are not supported, and "homeopathy cannot be viewed as an evidence-based form of therapy" until more convincing results are available.
Linde et al., 2001
Analyzed the methodological quality of 207 randomized trials collected for 5 previously published reviews on homeopathy, two herbal medicines (St. John's wort and echinacea), and acupuncture.
Authors found that the majority of trials had major weaknesses in methodology and/or reporting. Homeopathy trials were "less frequently randomized...and reported less details on dropouts and withdrawals" than the other types.
Cucherat et al., 2000
Analyzed 16 randomized, controlled trials (17 comparisons were made) comparing homeopathic treatment to placebo. Work was part of a report prepared for the European Union on the effectiveness of homeopathy.
Authors found that the "strength of evidence remains low" because of trial flaws and other limitations. They added that "at least one [of the tested homeopathic treatments] shows an added effect relative to placebo." Group recommended that homeopathy be studied further using the same methods used to study conventional medicine.
Ernst and Pittler, 1998
Systematic review of eight trials.
Rigorous clinical trials indicate arnica is not more effective than a placebo; most trials studied use of arnica for tissue trauma.
Linde et al., 1997
Analyzed 89 trials. Each trial was controlled; compared homeopathy to a placebo; was either randomized or double-blinded; and yielded a written report.
Authors concluded that their results were not compatible with a hypothesis that the clinical effects of homeopathy are completely due to placebo. However, they found insufficient evidence that homeopathy is clearly efficacious for any single clinical condition. They stated that further research is warranted if it is rigorous and systematic.
Kleijnen et al., 1991
Assessed 105 controlled trials of homeopathy, 68 randomized.
Authors found a positive trend in the evidence, regardless of the quality of the trial or the method of homeopathy used. They cautioned, however, that definitive conclusions about homeopathy could not be drawn, because many of the trials were not of good quality and the role of publication bias was unknown.
Systematic Reviews of Clinical Trials on Single Medical Conditions
Long and Ernst, 2001
Systematic review of four osteoarthritis clinical trials.
Research on homeopathic treatment for osteoarthritis is insufficient to reliably assess the clinical effectiveness of homeopathic treatment of osteoarthritis.
Jonas et al., 2000
Meta-analysis of six controlled clinical trials.
Controlled clinical trials indicate that homeopathic remedies appear to work better than a placebo in studies of rheumatic syndromes, but there are too few studies to draw definitive conclusions, and efficacy results are mixed.
In a systematic review, data from a set of studies on a particular question or topic are collected, analyzed, and critically reviewed. A meta-analysis uses statistical techniques to analyze results from individual studies.